Excimer laser equipment light path coupling device

Abstract

The utility model provides an excimer laser equipment light path coupling device, and relates to the technical field of blood vessel erosion. The coupling base is fixedly mounted on the light path shell, and a mounting cavity is formed in the coupling base in a penetrating manner; one end of the guide pipe connector is movably inserted into the mounting cavity of the coupling base, the other end of the guide pipe connector is connected with a laser guide pipe, and a light path channel communicated with the laser guide pipe is formed in the guide pipe connector in a penetrating mode; the locking piece is arranged in the mounting cavity of the coupling base and can lock the conduit joint on the coupling base; the shielding piece is located in the mounting cavity and can shield a gap between the outer wall of the guide pipe connector and the inner wall of the mounting cavity and prevent the excimer laser from being emitted out of the gap between the outer wall of the guide pipe connector and the inner wall of the mounting cavity. The catheter connector has the effects of quickly installing the catheter connector and reducing medical risks.

Description

Technical Field

[0001] The present application relates to the technical field of vascular ablation, and in particular to an optical path coupling device for an excimer laser device. Background Art

[0002] Atherosclerotic plaques are the primary cause of cardiovascular disease in humans. Efficient removal of atherosclerotic plaques is an important means to reduce mortality, improve quality of life, and alleviate the social medical burden. In recent years, excimer laser technology has continued to develop, using laser catheters to transmit 308nm high-energy ultraviolet lasers to the lesion site in the vascular cavity, so that it acts on stenosis / blockage and other affected areas, and uses photochemical, photothermal and photomechanical effects to erode and crush plaques into micron-sized particles, thereby achieving the effect of reducing volume and expanding the lumen. Compared with traditional surgical removal and drug thrombolysis, excimer laser technology has significantly higher efficiency and safety.

[0003] In excimer laser technology, an excimer laser device is required. The excimer laser device is provided with a coupling device for connecting a laser catheter. The laser catheter is inserted into the installation cavity of the coupling device, so that the laser catheter and the coupling device can be smoothly connected. Under the guidance of the laser catheter, the excimer laser emitted by the excimer laser device can be smoothly guided to the lesion location and the lesion location can be ablated.

[0004] In the prior art, in order to quickly and conveniently insert the laser catheter into the installation cavity of the coupling device, the size of the installation cavity is often slightly larger than the size of the laser catheter connection end, so that the laser catheter can be quickly connected to the coupling device. However, this design will make the connection between the laser catheter and the coupling device less stable, and will also cause the excimer laser emitted by the excimer laser device to pass through the gap between the installation cavity and the laser catheter connection end, thereby causing medical risks. Utility Model Content

[0005] In order to improve the poor stability of the connection between the laser catheter and the coupling end, and the problem that the excimer laser easily passes through the gap between the coupling device mounting cavity and the laser catheter connecting end, thereby causing medical risks, the present application provides an excimer laser equipment optical path coupling device.

[0006] The present application provides an excimer laser device optical path coupling device adopts the following technical solution:

[0007] An optical path coupling device for an excimer laser device, comprising:

[0008] Optical path shell;

[0009] The coupling base is fixedly mounted on the optical path housing, and a mounting cavity is provided inside the coupling base;

[0010] A catheter connector, one end of which is movably plugged into the mounting cavity of the coupling base and the other end of which is connected to the laser catheter, and an optical path channel connected to the laser catheter is provided through the catheter connector;

[0011] A locking member, disposed in the mounting cavity of the coupling base, capable of locking the catheter connector on the coupling base;

[0012] The shielding member is located in the installation cavity and can shield the gap between the outer wall of the catheter joint and the inner wall of the installation cavity, thereby preventing the excimer laser from being emitted from the gap between the outer wall of the catheter joint and the inner wall of the installation cavity.

[0013] Furthermore, the locking member is a positioning steel ball and an elastic marble arranged in pairs on the inner wall of the installation cavity. The positioning steel ball is fixedly installed on the inner wall of the installation cavity and protrudes from the inner wall of the installation cavity. A positioning hole for the positioning steel ball to be inserted is provided on the catheter joint. The elastic marble is adjustably installed on the inner wall of the installation cavity. Under the push of the elastic marble, the catheter joint enables the positioning steel ball to be stably inserted in the positioning hole.

[0014] Furthermore, the shielding member is a light shielding sheet obliquely installed between the outer wall of the catheter joint and the inner wall of the installation cavity, one end of the light shielding sheet abuts against the inner wall of the installation cavity, and the other end abuts against the outer wall of the catheter joint.

[0015] Furthermore, the coupling base is provided with an identification mechanism for identifying the model of the catheter connector.

[0016] Furthermore, a limit plate is installed on the optical path housing, and the limit plate is located on one side of the installation cavity. When the catheter connector is inserted into the installation cavity of the coupling base and abuts against the limit plate, the identification mechanism can correctly identify the model of the catheter connector.

[0017] Furthermore, the optical circuit housing includes a frame and a mounting frame movably mounted on the frame, the coupling base and the limit plate are fixed on the mounting frame, and the frame is provided with an adjustment and positioning component for adjusting and positioning the mounting frame.

[0018] Furthermore, the cross-section of the installation cavity is a long strip socket structure, and the installation frame is adjustably arranged in the frame along the width direction of the long strip socket. The adjustment positioning component includes a slide rail pair arranged between the frame and the installation frame and an adjustment mechanism for driving the installation frame to slide in the frame.

[0019] Furthermore, the installation frame and the frame body are nested square frames.

[0020] Furthermore, the adjustment mechanism includes an adjustment rod and a compression spring relatively arranged at both ends of the mounting frame, the adjustment rod is threadedly mounted on one side of the frame, and the end of the adjustment rod abuts against the corresponding side of the mounting frame, the compression spring is arranged between the opposite side of the mounting frame and the corresponding frame, and the relative position of the mounting frame and the frame is adjusted by the cooperation of the compression spring and the adjustment rod.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. A locking member and a shielding member are provided in the mounting cavity of the coupling base, which can not only enable the catheter connector to be quickly and conveniently inserted into the mounting cavity of the coupling base, but also stably mount the catheter connector on the coupling base through the locking member. At the same time, the shielding member can also shield the gap between the outer wall of the catheter connector and the inner wall of the mounting cavity, thereby blocking the excimer laser from being emitted from the gap between the outer wall of the catheter connector and the inner wall of the mounting cavity, thereby reducing medical risks;

[0023] 2. An identification mechanism for identifying the model of the catheter connector is provided on the coupling base. When the catheter connector is inserted into the mounting cavity of the coupling base and abuts against the limit plate on the optical path shell, it indicates that the catheter connector has been plugged into place. At this time, the identification mechanism can accurately identify the model of the current catheter connector, and further identify and determine whether the model of the laser catheter on the current catheter connector is compatible with the energy of the excimer laser emitted by the current excimer laser device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is an exploded view of the upper cover body, the lower cover body, the mounting frame and the conduit joint in the embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the upper cover body and the shielding member in the embodiment of the present application.

[0028] Figure numerals: 1. shielding member; 21. frame; 22. mounting frame; 3. coupling base; 31. upper cover; 32. lower cover; 41. slide rail pair; 42. adjusting rod; 43. compression spring; 5. catheter joint; 7. optical path; 8. locking member; 92. infrared transmitter; 93. infrared receiver; 10. through hole; 11. limiting plate; 12. mounting cavity; 13. alignment transmitter; 14. alignment receiver; 15. alignment channel; 16. positioning hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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 are within the scope of protection of the present invention.

[0030] The present application embodiment discloses an excimer laser device optical path coupling device. Figure 1 , Figure 2 and Figure 3 , an optical path coupling device for an excimer laser device, which is installed on the frame of the excimer laser device, comprises an optical path shell installed on the frame, a coupling base 3 fixedly installed on the optical path shell, a catheter joint 5 detachably connected to the coupling base 3, and a laser catheter connected to the catheter joint 5. An installation cavity 12 is provided through the coupling base 3, one end of the catheter joint 5 is movably plugged into the installation cavity 12 of the coupling base 3, and an optical path channel 7 for installing the laser catheter is provided through the catheter joint 5. The excimer laser emitted by the excimer laser device passes through the optical path shell, the installation cavity 12 on the coupling base 3, and the optical path channel 7 on the catheter joint 5 in sequence and enters the laser catheter. With the guiding effect of the laser catheter, it can be quickly guided to the lesion position and the lesion position can be ablated.

[0031] Considering that the conduit connector 5 can be conveniently plugged and installed in the mounting cavity 12 on the coupling base 3, the size of the mounting cavity 12 is slightly larger than the size of the conduit connector 5. In order to ensure that the conduit connector 5 can be stably installed in the mounting cavity 12, refer to Figure 2 and Figure 3The mounting cavity 12 of the coupling base 3 is provided with a locking member 8 for locking the conduit connector 5. To improve the stability of locking the conduit connector 5, multiple groups of locking members 8 are provided. To facilitate the installation of the locking member 8 in the mounting cavity 12 of the coupling base 3, the coupling base 3 includes an upper cover 31 and a lower cover 32, and the upper cover 31 and the lower cover 32 are both processed and formed separately. The locking member 8 is a positioning steel ball and an elastic marble arranged in pairs on the inner wall of the installation cavity 12. The positioning steel ball and the elastic marble are respectively located on two opposite surfaces of the inner wall of the installation cavity 12. The positioning steel ball is fixedly installed on the inner wall of the installation cavity 12 and protrudes from the inner wall of the installation cavity 12. A positioning hole 16 for the positioning steel ball to be inserted is provided on the catheter connector 5. A mounting groove is provided on the inner wall of the installation cavity 12 away from the positioning steel ball. A spring is installed in the mounting groove. One end of the spring is fixedly connected to the inner wall of the mounting groove and the other end is fixedly connected to the elastic marble. The elastic marble is adjustable and installed on the inner wall of the installation cavity 12 through the spring. When the spring is at its original length, the elastic marble is located outside the mounting groove. When the catheter connector 5 is inserted into the installation cavity 12, the catheter connector 5 is pushed by the elastic marble so that the positioning steel ball can be stably inserted into the positioning hole 16, ensuring that the catheter connector 5 can be stably locked in the installation cavity 12 and the gap between the side wall of the catheter connector 5 and the inner wall of the installation cavity 12 can be eliminated to a certain extent.

[0032] Since the size of the installation cavity 12 is slightly larger than that of the catheter connector 5, there is a gap between the outer wall of the catheter connector 5 and the inner wall of the installation cavity 12. When the excimer laser is injected into the optical path 7 on the catheter connector 5, part of the excimer laser beam is emitted from the gap between the outer wall of the catheter connector 5 and the inner wall of the installation cavity 12, which is easy to irradiate normal tissues, thereby causing medical risks. Figure 2 and Figure 3 , a shielding member 1 for blocking the excimer laser from being emitted from the gap between the outer wall of the catheter connector 5 and the inner wall of the mounting cavity 12 is arranged in the mounting cavity 12 of the coupling base 3. In the embodiment of the present application, the shielding member 1 is arranged as a flexible light shielding sheet, and a groove is provided on the inner wall of the mounting cavity 12 for mounting the light shielding sheet, and the groove wall of the groove is arranged at an angle, one end of the light shielding sheet extends into the groove and is fixed to the inner wall of the groove by screws, and the other end extends out of the groove and is located in the mounting cavity 12. Since the light shielding sheet is flexible, as the catheter connector 5 is inserted into the mounting cavity 12, the catheter connector 5 will push the light shielding sheet to bend, so that the end of the light shielding sheet away from the groove elastically presses against the outer wall of the catheter connector 5. At this time, the light shielding sheet is installed obliquely between the outer wall of the catheter connector 5 and the inner wall of the mounting cavity 12, so as to effectively block the excimer laser from being emitted from the gap between the outer wall of the catheter connector 5 and the inner wall of the mounting cavity 12.

[0033] When using excimer laser equipment to ablate plaque tissue, excimer laser beams of different energies can be selected according to the size of the plaque, and the corresponding laser catheter also needs to be selected to match it. Figure 2 and Figure 3 The coupling base 3 is provided with an identification mechanism for identifying the model of the catheter connector 5, and the identification mechanism includes a plurality of infrared transmitters 92 respectively installed on the lower cover body 32 and a plurality of infrared receivers 93 installed on the upper cover body 31. The plurality of infrared transmitters 92 correspond to the plurality of infrared receivers 93 one by one to form a plurality of infrared pairs of tubes; when the catheter connector 5 is not inserted into the installation cavity 12 of the coupling base 3, the signals emitted by the infrared transmitters 92 can be received by the corresponding infrared receivers 93. A plurality of through holes 10 are provided on the catheter connector 5, and different models of the catheter connectors 5 have different numbers of through holes 10. When the catheter connector 5 is fully inserted into the mounting cavity 12 of the coupling base 3, a plurality of infrared pairs of tubes are simultaneously activated, and signals emitted by some infrared transmitters 92 can pass through the through holes 10 on the catheter connector 5 and be received by the corresponding infrared receivers 93, while signals emitted by some infrared transmitters 92 are blocked by the catheter connector 5, and the corresponding infrared receivers 93 cannot receive the signals. By judging the status of the infrared pairs of tubes that are turned on, the model of the catheter connector 5 currently inserted into the coupling base 3 can be identified, and thus it can be quickly known whether the model of the current laser catheter is compatible with the energy of the excimer laser emitted by the current excimer laser device.

[0034] In order to accurately identify the model of the laser catheter on the current catheter connector 5, it is necessary to ensure that the catheter connector 5 can be fully inserted into the mounting cavity 12 of the coupling base 3. For this purpose, refer to Figure 2 and Figure 3, an alignment transmitter 13 (infrared transmitting tube) is installed on the lower cover 32, and an alignment receiver 14 (infrared receiving tube) corresponding to the alignment transmitter 13 is installed on the upper cover 31. The alignment transmitter 13 and the alignment receiver 14 are both located at the insertion port of the coupling base 3, and an alignment channel 15 is provided through the catheter connector 5; only when the catheter connector 5 is fully inserted into the installation cavity 12 of the coupling base 3, the alignment channel 15 is arranged opposite to the alignment transmitter 13 and the alignment receiver 14, so that the alignment signal emitted by the alignment transmitter 13 can pass through the alignment channel 15 and be received by the alignment receiver 14. At the same time, a limit plate 11 is also installed on the optical path shell, and the limit plate 11 is located on one side of the installation cavity 12, and one end of the limit plate 11 is projected into the installation cavity 12. When connecting the catheter connector 5 to the coupling base 3, it is only necessary to insert the catheter connector 5 into the installation cavity 12 and push the catheter connector 5 toward the limit plate 11 until the end of the catheter connector 5 abuts against the limit plate 11. At this time, the catheter connector 5 is completely inserted into the installation cavity 12 of the coupling base 3. Therefore, the signal emitted by the infrared transmitter 92 can pass through the through hole 10 on the catheter connector 5 and be received by the corresponding infrared receiver 93, and the model of the current laser catheter can be determined.

[0035] At present, conventional catheter connectors 5 are all set to be flat, so in order to adapt to the catheter connector 5, the cross-section of the mounting cavity 12 on the coupling base 3 is also set to a long strip plug structure, and the cross-section of the optical path 7 on the catheter connector 5 is also a long strip hole structure. In order to enable the excimer laser to be quickly aligned and injected into the optical path 7 on the catheter connector 5, the position of the coupling base 3 is adjustable. Figure 1 and Figure 2The optical path housing includes a frame body 21 fixedly connected to the frame and a mounting frame 22 movably mounted on the frame body 21. In this embodiment, the frame body 21 and the mounting frame 22 are nested square frames, and the coupling base 3 and the limit plate 11 are fixed on the mounting frame 22. The mounting frame 22 can be adjusted in the frame body 21 along the width direction of the long strip jack, and the frame body 21 is provided with an adjustment and positioning assembly for adjusting and positioning the mounting frame 22. In the embodiment of the present application, the adjustment and positioning assembly includes two sets of slide rails 41 and an adjustment mechanism for driving the mounting frame 22 to slide in the frame body 21, wherein the adjustment mechanism includes an adjustment rod 42 and a compression spring 43 arranged at both ends of the mounting frame 22, and the two sets of slide rails 41 are arranged at intervals along the length direction of the long strip jack. The two sets of slide rails 41 slide and connect the two side walls of the mounting frame 22 to the inner walls on both sides of the frame body 21, respectively, so that the mounting frame 22 can drive the coupling base 3 to slide stably along the width direction of the long strip jack. The length direction of the adjustment rod 42 is consistent with the length direction of the slide rail pair 41. In the embodiment of the present application, the adjustment rod 42 is threadedly fitted to penetrate the bottom edge of the frame 21, and the top of the adjustment rod 42 abuts against the bottom of the mounting frame 22. The compression spring 43 is installed between the top of the mounting frame 22 and the top of the frame 21. During the process of twisting the adjustment rod 42, the mounting frame 22 moves up and down relative to the frame 21 (slides along the slide rail pair 41) through the feeding of the adjustment rod 42. When it is necessary to adjust the optical path channel 7 on the catheter connector 5 to align with the excimer laser, the adjustment rod 42 can be rotated, and the adjustment rod 42 pushes the mounting frame 22 to adjust its position in the frame 21, so that the coupling base 3 and the catheter connector 5 installed on the mounting frame 22 are adjusted synchronously until the optical path channel 7 on the catheter connector 5 is aligned with the excimer laser.

[0036] As a preferred embodiment, the top of the adjustment rod 42 is spherical to reduce friction resistance during the adjustment process.

[0037] The implementation principle of an optical path coupling device for an excimer laser device in an embodiment of the present application is as follows: first, a frame body 21 with a mounting frame 22 is fixed on the frame, and then a coupling base 3 formed by snapping an upper cover body 31 with a locking piece 8 and a lower cover body 32 is fixedly installed on the mounting frame 22, and then a limit plate 11 is fixed on the mounting frame 22. At this time, the coupling base 3 can be stably installed.

[0038] Then insert the catheter connector 5 with the laser catheter into the mounting cavity 12 of the coupling base 3, and push the catheter connector 5 toward the limit plate 11 until the end of the catheter connector 5 abuts against the limit plate 11. At this time, the catheter connector 5 is completely inserted into the mounting cavity 12 of the coupling base 3. By judging the condition of the infrared pair of tubes that are turned on, the model of the catheter connector 5 currently inserted into the coupling base 3 can be identified, and then it can be quickly known whether the model of the current laser catheter is compatible with the energy of the excimer laser emitted by the current excimer laser device.

[0039] Finally, the position of the mounting frame 22 is adjusted according to the path of the excimer laser emitted by the excimer laser device. At this time, the adjusting rod 42 can be rotated, and the adjusting rod 42 pushes the mounting frame 22 to adjust its position in the frame 21, so that the coupling base 3 and the catheter connector 5 installed on the mounting frame 22 are synchronously adjusted in position until the optical path channel 7 on the catheter connector 5 is aligned with the excimer laser.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An optical path coupling device for an excimer laser device, characterized in that: include Optical path shell; The coupling base is fixedly mounted on the optical path housing, and a mounting cavity is provided inside the coupling base; A catheter connector, one end of which is movably plugged into the mounting cavity of the coupling base and the other end of which is connected to the laser catheter, and an optical path channel connected to the laser catheter is provided through the catheter connector; A locking member, disposed in the mounting cavity of the coupling base, capable of locking the catheter connector on the coupling base; The shielding member is located in the installation cavity and can shield the gap between the outer wall of the catheter joint and the inner wall of the installation cavity, thereby preventing the excimer laser from being emitted from the gap between the outer wall of the catheter joint and the inner wall of the installation cavity.

2. The excimer laser device optical path coupling device according to claim 1, characterized in that: The locking member is a positioning steel ball and an elastic marble arranged in pairs on the inner wall of the installation cavity. The positioning steel ball is fixedly installed on the inner wall of the installation cavity and protrudes from the inner wall of the installation cavity. A positioning hole for the positioning steel ball to be inserted is provided on the catheter joint. The elastic marble is adjustably installed on the inner wall of the installation cavity. Under the push of the elastic marble, the catheter joint enables the positioning steel ball to be stably inserted in the positioning hole.

3. The excimer laser device optical path coupling device according to claim 1, characterized in that: The shielding member is a light shielding sheet obliquely installed between the outer wall of the catheter joint and the inner wall of the installation cavity, one end of the light shielding sheet abuts against the inner wall of the installation cavity, and the other end abuts against the outer wall of the catheter joint.

4. The excimer laser device optical path coupling device according to claim 1, characterized in that: The coupling base is provided with an identification mechanism for identifying the model of the catheter connector.

5. The excimer laser device optical path coupling device according to claim 4, characterized in that: A limit plate is installed on the optical path housing, and the limit plate is located at one side of the installation cavity. When the catheter connector is inserted into the installation cavity of the coupling base and abuts against the limit plate, the identification mechanism can correctly identify the model of the catheter connector.

6. The excimer laser device optical path coupling device according to claim 5, characterized in that: The optical circuit housing comprises a frame body and a mounting frame movably mounted on the frame body, a coupling base and a limit plate are both fixed on the mounting frame, and an adjusting and positioning component for adjusting and positioning the mounting frame is arranged on the frame body.

7. The excimer laser device optical path coupling device according to claim 6, characterized in that: The cross section of the installation cavity is a long strip socket structure, the installation frame is adjustably arranged in the frame body along the width direction of the long strip socket, and the adjustment positioning component includes a slide rail pair arranged between the frame body and the installation frame and an adjustment mechanism for driving the installation frame to slide in the frame body.

8. The excimer laser device optical path coupling device according to claim 7, characterized in that: The installation frame and the frame body are square frames that are nested.

9. The excimer laser device optical path coupling device according to claim 8, characterized in that: The adjustment mechanism includes an adjustment rod and a compression spring arranged at two ends of the mounting frame relatively to each other. The adjustment rod is threadedly mounted on one side of the frame, and the end of the adjustment rod abuts against the corresponding side of the mounting frame. The compression spring is arranged between the opposite side of the mounting frame and the corresponding frame. The relative position of the mounting frame and the frame is adjusted by the compression spring and the adjustment rod.

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