CN117503335B - Optical coupling laser ablation system - Google Patents
Optical coupling laser ablation system Download PDFInfo
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- CN117503335B CN117503335B CN202311668947.5A CN202311668947A CN117503335B CN 117503335 B CN117503335 B CN 117503335B CN 202311668947 A CN202311668947 A CN 202311668947A CN 117503335 B CN117503335 B CN 117503335B
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- 230000008878 coupling Effects 0.000 title claims abstract description 68
- 238000010168 coupling process Methods 0.000 title claims abstract description 68
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 68
- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 238000000608 laser ablation Methods 0.000 title claims abstract description 18
- 230000009471 action Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- 230000005693 optoelectronics Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000011298 ablation treatment Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The invention discloses an optical coupling laser ablation system, which comprises a catheter joint, a coupling base, an optical path shell and a laser catheter, wherein the optical coupling base is connected with the catheter joint; the front end of the light path shell is positioned on a laser light path and provided with a focusing lens; the coupling base is connected between the catheter connector and the light path shell, and a light path space is reserved in the coupling base; the relative position of the catheter connector can be adjusted through an adjusting component arranged at the front end of the coupling base, so that laser enters the catheter connector along the light path space after being focused by the focusing lens; the front end of the catheter connector is mutually spliced with the laser catheter; a group of locating hole slots are formed in the plug-in part of the laser catheter, and a group of locking pieces are arranged in the catheter connector corresponding to the locating hole slots; the front end of the laser catheter is provided with a group of positioning columns, and the end part of the catheter connector is correspondingly provided with a group of positioning column holes. The system can realize maximum coupling efficiency through rapid adjustment in three directions of X-Y-Z.
Description
Technical Field
The invention belongs to the technical field of intravascular laser ablation, and particularly relates to an optical coupling laser ablation system.
Background
The ultraviolet laser ablation is based on an intravascular laser plaque ablation technology, 355nm high-energy ultraviolet laser is transmitted to a lesion position in a blood vessel cavity by using an optical fiber bundle catheter, so that the laser is applied to affected parts such as stenosis/blockage, plaque is ablated and crushed into micron-sized particles by using photochemical, photothermal and photo-mechanical effects, and the effects of reducing the volume and expanding the cavity are further realized.
In this laser ablation system, laser catheter is connected with equipment and is inserted, all has higher requirement to the fastening degree and the precision of pipe installation, need carry out three-dimensional regulation in order to reach optimal coupling efficiency simultaneously to the pipe position, ensure treatment safety and improve treatment efficiency, but current laser catheter does not have more ripe locking fixed establishment, is more easy not hard up and drops from equipment, causes medical risk, and the coupling efficiency of space light only relies on machining precision simultaneously, can't satisfy higher energy output demand, easily damages the optic fibre terminal surface of pipe, brings adverse effect to the ablation treatment.
Disclosure of Invention
The invention aims to: aiming at the defects of the prior art, the invention provides the optical coupling laser ablation system, which realizes three-dimensional adjustment of laser and improves the laser ablation efficiency.
The second technical problem to be solved by the invention is to provide the splicing, fixing and locking structure for the laser catheter and the equipment in the plugging and unplugging process, so that the connection performance is more stable and reliable, and the risk of medical accidents caused by accidental falling is prevented.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
An optical coupling laser ablation system comprises a catheter joint, a coupling base, an optical path shell and a laser catheter; the front end of the light path shell is positioned on a laser light path and provided with a focusing lens; the coupling base is connected between the catheter connector and the light path shell, and a light path space is reserved in the coupling base; the relative position of the catheter connector can be adjusted through an adjusting component arranged at the front end of the coupling base, so that laser enters the catheter connector along the light path space after being focused by the focusing lens; the adjusting assembly is used for adjusting the catheter joint in the X-Y axis direction and adjusting the catheter joint in the Z axis direction by using the installation depth of the focusing lens in the light path shell.
The front end of the catheter connector is mutually spliced with the laser catheter; the splicing part of the laser catheter is provided with a group of positioning hole slots, and a group of locking pieces are arranged in the catheter connector corresponding to the positioning hole slots; the front end of the laser catheter is provided with a group of positioning columns, and the end part of the catheter connector is correspondingly provided with a group of positioning column holes.
Further, the front end of the coupling base is provided with a frame-shaped coupling base groove, and the center of a groove bottom plate of the coupling base groove is provided with a light path window; the rear end of the catheter connector is provided with a catheter connector mounting block nested in the coupling base groove, and the front end of the catheter connector is provided with a catheter seat connector spliced with the laser catheter; the coupling base groove be provided with a set of adjusting part all around, adjusting part tip butt be in on the pipe joint installation piece, adjust the interval around pipe joint and the coupling base groove through adjusting part screw in's degree of depth, realize that the light path window aligns with pipe joint.
Further, the adjusting assembly comprises a precise adjusting knob and an adjusting spring; the precise adjusting knob and the adjusting spring are arranged on the inner walls of the two opposite sides of the groove of the coupling base; the side surface of the conduit joint mounting block is respectively abutted with the precise adjusting knob and the adjusting spring, and the distance between the conduit joint mounting block and the periphery of the coupling base groove is adjusted by adjusting the screwing depth of the precise adjusting knob on the coupling base groove.
The precise adjusting knob comprises an adjusting screw with a fine tooth external thread and a locking nut with a fine tooth internal thread; the adjusting screw is screwed into the coupling base groove through threads, and the locking nut is sleeved on the adjusting screw through threads.
Further, the focusing lens is arranged at the front end of the light path shell through a lens ring; the lens ring is provided with external threads, and the front end of the light path shell is provided with a lens mounting cavity with internal threads; after the focusing lens is embedded into the lens ring, the focusing lens is screwed into the lens mounting cavity together with the lens ring.
Further, a step for installing a focusing lens is arranged in the lens ring, and an inner wall is provided with an inner thread; the focusing lens is embedded into the lens ring from the rear end and is fixed on the step through a lens pressing ring with external threads; the front end of the lens ring is provided with a group of adjusting bolts, and the lens ring is screwed into the lens mounting cavity through the adjusting bolts.
The top of the light path shell is provided with a group of locking screw holes, and when the lens ring is screwed into the lens mounting cavity, the lens ring is further fixed by screwing the locking screw holes into the jackscrews.
Furthermore, the pipe seat connector is reserved with a plugging groove corresponding to the plugging part of the laser pipe, and the plugging part is inserted into the plugging groove to realize the connection between the laser pipe and the equipment. The number of the positioning columns is more than 3, the number of the positioning column holes is greater than or equal to the number of the positioning columns, trigger switches are arranged in each positioning column hole, and when the positioning columns are inserted into the positions of the positioning columns Kong Yushe, the positioning columns can be abutted or not abutted against the trigger switches.
Further, the trigger switch is of a photoelectric type or a micro-contact type, is electrically connected with an external matching system, and is connected or disconnected after being abutted with the positioning column, so as to generate corresponding signals. Therefore, whether the catheter is inserted into place is judged, and the type of the catheter which is inserted at the moment can be judged according to the arrangement and the number of the positioning columns on the catheter, so that the specification of the catheter is identified.
Specifically, can set up the reference column of different quantity, through different quantity reference column and trigger switch position, realize triggering different signal combinations, realize the discernment of pipe specification.
Positioning columns with different lengths can be arranged, a longer positioning column can be abutted against the contact switch, and a shorter positioning column cannot be abutted against the contact switch, so that different signal combinations are triggered, and the identification of the specification of the catheter is realized.
Further, the positioning hole groove comprises a catheter positioning groove and a catheter positioning hole; the inner locking piece of the conduit joint comprises a ball spring screw and a spring pin; the guide pipe positioning groove is a triangular groove perpendicular to the inserting direction and is formed in the bottom surface of the inserting part, and the ball spring screw is clamped with the guide pipe positioning groove; the guide pipe positioning hole is formed in the top surface of the insertion part, and the spring pin penetrates through the guide pipe connector and is clamped with the guide pipe positioning hole in the insertion part inserted into the guide pipe connector.
Further, the ball spring screw comprises a screw shell, balls and a ball spring; the ball spring and the ball are arranged in the screw shell; the ball is positioned at an opening at one end of the screw shell, and the ball is ejected out by the ball spring; a counter bore corresponding to the ball is arranged in the conduit joint, and the size of the counter bore is smaller than that of the ball, so that the ball is limited in the counter bore; when the inserting part is inserted into the catheter connector, the ball is ejected out and clamped into the catheter positioning groove under the action of the ball spring.
Further, the other end of the screw shell far away from the ball is provided with an adjusting spanner hole, threads are arranged outside the screw shell, the screw shell is screwed into the conduit joint through the adjusting spanner hole, and the screwing depth of the screw shell can be adjusted.
Further, the spring pin comprises a pin column, a pin column spring and a pin column shell; the pin column shell is inserted into the conduit joint and fixed through an external nut; the pin spring is sleeved on the pin and is spliced in the pin shell together; the outer end of the pin column, which is positioned on the pin column shell, is provided with a handle, and the other end of the pin column is in plug-in fit with the catheter positioning hole; when the handle is pulled up, the pin ends disengage from the catheter positioning holes and allow the pin springs to compress.
Further, a strip-shaped clamping block is arranged at the bottom of the handle, a corresponding sliding groove is formed in the pin column shell, and the clamping block can slide up and down in the sliding groove; when the handle is rotated to enable the clamping block to be staggered with the sliding groove, the clamping block is limited at the top of the pin shell, and locking of the pin is achieved.
The beneficial effects are that:
(1) The optical coupling laser ablation system can accurately realize the adjustment in the Z direction by adjusting the position of the focusing lens in the light path shell, can accurately realize the simultaneous adjustment in the X-Y direction by adjusting the relative position of the catheter joint on the coupling base, and can realize the maximum coupling efficiency by the common adjustment in the X-Y-Z directions. The locking of focusing lens and catheter connector is conveniently realized through jackscrews or screws, and after the focusing lens and catheter connector are adjusted to the optimal light path position, the locking can be realized rapidly, the position looseness is avoided, and the efficiency is improved.
(2) The system of the invention uses the ball spring screw to preliminarily pre-fix and limit the guide pipe, and then uses the spring pin to lock the whole guide pipe; the ball spring screw enables the guide pipe to be connected to the guide pipe seat smoothly, the guide pipe seat plays a primary limiting function, the spring pin has a rotary self-locking function, and the operation is more convenient.
(3) The system of the invention utilizes the positioning column to touch and press the trigger switch, thereby realizing the rapid judgment of whether the plug is in place or not; meanwhile, the combination of the positioning column and the trigger switch is utilized to realize the judgment of different catheter specifications. When the catheter is inserted in place and contacts the trigger switch, the system recognizes the type of the catheter and then carries out the follow-up light emitting treatment of specific parameters, thereby ensuring the safety.
Drawings
The foregoing and/or other advantages of the invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings and detailed description.
Fig. 1 is a schematic diagram of the overall structure of the optically coupled laser ablation system.
Fig. 2 is a top view of the optically coupled laser ablation system.
Fig. 3 is a diagram of the structure of the catheter adapter and the laser catheter plug.
Fig. 4 is a schematic structural view of the fine adjustment knob.
Fig. 5 is a schematic view of the installation of a focusing optic in an optical path housing.
Fig. 6 is a diagram showing the state of the insertion of the laser catheter and the catheter adapter.
Fig. 7 is a schematic cross-sectional view of a laser catheter in a plugged state with a catheter adapter.
Fig. 8 is a schematic view of the overall structure of the laser catheter.
Fig. 9 is a bottom view of the laser catheter.
Fig. 10 is a top view of a laser catheter.
Fig. 11 is a cross-sectional view of a laser catheter.
Fig. 12 is a schematic view of the overall structure of the catheter adapter.
Fig. 13 is a schematic diagram of the locking of the ball spring screw to the catheter positioning groove.
Fig. 14 is a schematic diagram of the locking of the spring pin to the guide tube positioning hole.
Wherein each reference numeral represents:
10a catheter adapter; 101a catheter hub connector; 102 a conduit fitting mounting block; 103, inserting grooves; 104 positioning column holes; 105 triggering a switch; 106 ball spring screws; 1061 a screw housing; 1062 ball; 1063 ball springs; 1064 adjusting the wrench hole; 107 spring pins; 1071 pin; 1072 pin springs; 1073 pin housing; 1074 handle; 1075 clamping blocks; 1076 chute; 20 a coupling base; 201 coupling a base recess; 202, a precise adjusting knob; 203 an adjustment spring; 204 adjusting a screw; 205 locking the nut; 206 flange joint; 207 groove floor; 208 optical path window; 30 light path shells; 301a lens mounting cavity; 302 locking the screw hole; a 40 focus lens; a 50 laser catheter; 501 a plug-in part; 502 a catheter positioning slot; 503 a catheter positioning hole; 504 positioning columns; 60 lens rings; 601 adjusting bolts; 70 lens press ring.
Detailed Description
The invention will be better understood from the following examples.
Referring to fig. 1 and 2, the optical coupling laser ablation system of the present invention includes a catheter adapter 10, a coupling base 20, an optical path housing 30, and a laser catheter 50. Wherein, the front end of the light path shell 30 is positioned on the laser light path and provided with a focusing lens 40; the coupling base 20 is connected between the catheter connector 10 and the light path shell 30, and a light path space for laser to pass through is reserved in the coupling base; the catheter connector 10 can adjust the relative position through an adjusting component arranged at the front end of the coupling base 20, so that the laser enters the catheter connector 10 along the light path space after being focused by the focusing lens 40. The adjusting assembly is used for adjusting the catheter joint in the X-Y axis direction and adjusting the catheter joint in the Z axis direction by using the installation depth of the focusing lens in the light path shell, so that the three-dimensional rapid adjustment of the catheter joint in the X-Y-Z axis is realized.
Referring to fig. 3, the front end of the catheter adapter 10 of the present invention and the laser catheter 50 are inserted into each other in a quick-insertion manner. A set of positioning hole slots are formed in the plugging portion 501 of the laser catheter 50, and a set of locking members are arranged in the catheter adapter 10 corresponding to the positioning hole slots; the front end of the laser catheter 50 is provided with a set of positioning posts 504, and the end of the catheter adapter 10 is correspondingly provided with a set of positioning post holes 104. The positioning hole groove is matched with the locking piece, so that the positioning hole groove and the locking piece can be quickly inserted and fixed.
Referring to fig. 1 and 2, the front end of the coupling base 20 has a frame-shaped coupling base groove 201, and a light path window 208 is formed in the center of a groove bottom plate 207 of the coupling base groove 201; the rear end of the catheter adapter 10 is provided with a catheter adapter mounting block 102 nested in the coupling base groove 201, and the front end of the catheter adapter 10 is provided with a catheter seat adapter 101 spliced with the laser catheter 50; a group of adjusting components are arranged around the coupling base groove 201, the end parts of the adjusting components are abutted on the catheter connector mounting block 102, the distance between the catheter connector 10 and the periphery of the coupling base groove 201 is adjusted through the screwing depth of the adjusting components, and the alignment of the optical path window 208 and the catheter connector 10 is achieved.
In the invention, the adjusting assembly comprises a precise adjusting knob 202 and an adjusting spring 203; the precise adjusting knob 202 and the adjusting spring 203 are arranged on the inner walls of the two opposite sides of the coupling base groove 201; the side surface of the conduit joint mounting block 102 is respectively abutted with the precise adjusting knob 202 and the adjusting spring 203, and the distance between the conduit joint mounting block 102 and the periphery of the coupling base groove 201 is adjusted by adjusting the screwing depth of the precise adjusting knob 202 on the coupling base groove 201.
Referring to fig. 4, the fine adjustment knob 202 includes an adjustment screw 204 with fine external threads and a lock nut 205 with fine internal threads; the adjusting screw 204 is screwed into the coupling base groove 201 through threads, and the locking nut 205 is sleeved on the adjusting screw 204 through threads.
Referring to fig. 5, a focusing lens 40 is mounted at the front end of the optical path housing 30 through a lens ring 60; the lens ring 60 is provided with external threads, and the front end of the light path shell 30 is provided with a lens mounting cavity 301 with internal threads; after the focusing lens 40 is inserted into the lens ring 60, it is screwed into the lens mounting cavity 301 together with the lens ring 60.
The lens ring 60 is provided with a step for installing the focusing lens 40, and the inner wall is provided with internal threads; the focusing lens 40 is inserted into the lens ring 60 from the rear end and is fixed on the step by a lens pressing ring 70 having external threads; the front end of the lens ring 60 is provided with a group of adjusting bolts 601, and the lens ring 60 is screwed into the lens mounting cavity 301 through the adjusting bolts 601.
The top of the light path shell 30 is provided with a group of locking screw holes 302, and when the lens ring 60 is screwed into the lens mounting cavity 301, the lens ring 60 is further fixed by screwing the locking screw holes 302 into the jackscrews.
In use, the laser catheter 50 is inserted onto the catheter adapter 10, and then the catheter adapter mounting block 102 at the rear end of the catheter adapter 10 is inserted into the coupling base recess 201. The laser emits proper laser energy, the output end of the laser catheter 50 is connected with the laser power meter so as to monitor the optical power in real time, the precise adjusting knob 202 is screwed to press the catheter joint mounting block 102, the X-Y direction of the catheter is translated under the elastic pressure of the adjusting spring 203, meanwhile, the laser power meter is observed to enable the value of the laser power meter to be maximum, then the locking nut 205 is screwed and locked, the position is prevented from being changed due to vibration or external force, and the position with the highest coupling efficiency of the space light is found. The precise adjusting knob 202 and the adjusting spring 203 are made of stainless steel, and the locking nut 205 is made of copper.
The focusing lens 40 is then loaded into the lens ring 60 and pressed by the lens press ring 70. Finally, the lens ring 60 is installed in the lens installation cavity 301 together, and the lens ring 60 is of an external thread structure and can be screwed into the lens installation cavity 301 of the optical path shell 30 with the internal thread matched with the lens ring. By adjusting the position of the lens ring 60 in the light path housing 30, adjustment in the Z direction is precisely achieved. The front end of the lens ring 60 is provided with a set of adjusting bolts 601 which facilitate the adjustment of the installation depth by rotating and screwing with forceps or other instruments. Note that this adjustment can be performed simultaneously with the X-Y adjustment described above, with the maximum coupling efficiency achieved by the collective adjustment of the three directions X-Y-Z.
Referring to fig. 6, 7 and 12, the socket connector 101 is reserved with a socket 103 corresponding to the socket 501 of the laser catheter 50, and the socket is inserted into the socket to connect the laser catheter with the device. The number of the positioning columns 504 is more than 3, the number of the positioning column holes 104 is greater than or equal to the number of the positioning columns 504, a trigger switch 105 is arranged in each positioning column hole 504, and when the positioning columns 504 are inserted into the preset positions of the positioning column holes 104, the positioning columns can be abutted or not abutted against the trigger switch 105.
In the invention, the trigger switch 105 is of a photoelectric type or a micro-contact type, is electrically connected with an external matching system, and is connected or disconnected after being abutted with the positioning column 504, so as to generate corresponding signals. Therefore, whether the catheter is inserted into place is judged, and the type of the catheter which is inserted at the moment can be judged according to the arrangement and the number of the positioning columns on the catheter, so that the specification of the catheter is identified.
In this embodiment, the laser catheter 50 has six positioning posts 504 numbered 1# to 6# respectively, and has a long length and a short length, the longer positioning post can contact the switch, and the shorter positioning post cannot contact the switch. Meanwhile, a corresponding trigger switch 105 is arranged in a corresponding group of positioning column holes 104. The specific combination is realized through the positioning columns 504 and the trigger switch 105, and the positioning columns of each combination are respectively contacted with the trigger switch in the limiting column hole to form different signals and feed back to the system, so that the system judges the type of the catheter connected at the moment and sets proper treatment parameters.
Referring to fig. 8 to 11, the positioning hole groove includes a duct positioning groove 502 and a duct positioning hole 503; the locking piece in the conduit joint 10 comprises a ball spring screw 106 and a spring pin 107; the guide pipe positioning groove 502 is a triangular groove perpendicular to the plugging direction, and is formed on the bottom surface of the plugging portion 501, and the ball spring screw 106 and the guide pipe positioning groove 12 are mutually clamped; the pipe locating hole 503 is formed on the top surface of the plugging portion 501, and the spring pin 107 penetrates through the pipe connector 10 and is clamped with the pipe locating hole 503 on the plugging portion 501 plugged into the pipe connector 10.
Referring to fig. 12 and 13, the ball spring screw 106 includes a screw housing 1061, balls 1062, and a ball spring 1063; the ball spring 1063 and the ball 1062 are disposed in the screw housing 1061; the ball 1062 is located at an opening at one end of the screw housing 1061, and the ball 1062 is pushed out by the ball spring 1063; a counter bore (as shown in fig. 12) corresponding to the ball 1062 is formed at the bottom of the insertion groove 103 of the catheter adapter 10, and the counter bore is smaller than the ball 1062, so that the ball 1062 is limited in the counter bore; when the plug 501 is inserted into the catheter adapter 10, the balls 1062 are pushed out and clamped into the catheter positioning groove 502 under the action of the ball springs 1063.
The other end of the screw housing 1061 far away from the ball 1062 is provided with an adjusting wrench hole 1064, threads are arranged outside the screw housing 1061, the screw housing 1061 is screwed into the conduit joint 10 through the adjusting wrench hole 1064, and the screwing depth of the screw housing 1061 can be adjusted.
Referring to fig. 14, spring pin 107 includes pin 1071, pin spring 1072, and pin housing 1073; the pin housing 1073 is inserted into the conduit joint 10 and fixed by an external nut; the pin spring 1072 is sleeved on the pin 1071 and is inserted into the pin housing 1073 together; the outer end of the pin 1071, which is positioned on the pin housing 1073, is provided with a handle 1074, and the other end is in plug-in fit with the catheter positioning hole 503; as the handle 1074 is pulled upward, the end of the pin 1071 separates from the catheter positioning hole 503 and causes the pin spring 1072 to compress.
Referring to fig. 12, a strip-shaped clamping block 1075 is provided at the bottom of the handle 1074, a corresponding sliding slot 1076 is provided on the pin housing 1073, and the clamping block 1075 can slide up and down in the sliding slot 1076; when the handle 1074 is rotated to stagger the clamping block 1075 from the sliding groove 1076, the clamping block 1075 is limited at the top of the pin housing 1073, so that locking of the pin 1071 is achieved.
When in use, the spring pin 107 is pulled up to be in a locking state, and the laser guide tube 50 is aligned and inserted until the ball spring screw 106 is embedded into the guide tube positioning groove 502 at the bottom of the plug-in connection part 501, which is a pre-positioning step, the laser guide tube is not very stable, and can be loosened and pulled out by external force.
Subsequently, the handle 1074 of the spring pin 107 is rotated, and the pin 1071 naturally falls down into the pipe positioning hole 503 of the plug part 501 under the tensile force of the pin spring 1072, and the pipe is fixed and locked.
After the catheter is fixed, the positioning column 504 on the catheter is abutted against the trigger switch 105 in the positioning column hole 104 of the catheter connector 10, and whether the optical fiber catheter reaches the locking position and the type of the catheter are judged and sensed by utilizing a signal generated by switching on or off the trigger switch 105, wherein each positioning column hole 104 is provided with a trigger switch. Only if the catheter is mounted at the locking position, the positioning column 104 on the catheter can trigger the switch, the switch is of a photoelectric type or a micro-contact type, after the positioning column is abutted, the trigger switch sends a signal for locking the catheter in place to the system, and the type of the accessed catheter can be judged according to the arrangement and the number of the positioning columns on the catheter, so that the identification of the specification of the catheter is realized.
The present invention provides a method and a thought of an optical coupling laser ablation system, and the method and the way of implementing the technical scheme are numerous, the above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The components not explicitly described in this embodiment can be implemented by using the prior art.
Claims (3)
1. An optical coupling laser ablation system, characterized by comprising a catheter adapter (10), a coupling base (20), an optical path housing (30) and a laser catheter (50); the front end of the light path shell (30) is provided with a focusing lens (40) on the laser light path; the coupling base (20) is connected between the catheter connector (10) and the light path shell (30), and a light path space is reserved in the coupling base; the catheter connector (10) can adjust the relative position through an adjusting component arranged at the front end of the coupling base (20), so that laser enters the catheter connector (10) along the light path space after being focused by the focusing lens (40);
The front end of the catheter connector (10) is mutually spliced with the laser catheter (50); a group of locating hole grooves are formed in the inserting part (501) of the laser catheter (50), and a group of locking pieces are arranged in the catheter connector (10) corresponding to the locating hole grooves; a group of positioning columns (504) are arranged at the front end of the laser catheter (50), and a group of positioning column holes (104) are correspondingly arranged at the end part of the catheter joint (10);
The front end of the coupling base (20) is provided with a frame-shaped coupling base groove (201), and the center of a groove bottom plate (207) of the coupling base groove (201) is provided with a light path window (208); the rear end of the catheter connector (10) is provided with a catheter connector mounting block (102) nested in the coupling base groove (201), and the front end of the catheter connector (10) is provided with a catheter seat connector (101) spliced with the laser catheter (50); a group of adjusting components are arranged around the coupling base groove (201), the end parts of the adjusting components are abutted on the catheter connector mounting blocks (102), the distance between the catheter connector (10) and the periphery of the coupling base groove (201) is adjusted through the screwing depth of the adjusting components, and the alignment of the optical path window (208) and the catheter connector (10) is realized;
The adjusting assembly comprises a precise adjusting knob (202) and an adjusting spring (203); the precise adjusting knob (202) and the adjusting spring (203) are arranged on the inner walls of the two opposite sides of the coupling base groove (201); the side surface of the conduit joint mounting block (102) is respectively abutted with the precise adjusting knob (202) and the adjusting spring (203), and the distance between the conduit joint mounting block (102) and the periphery of the coupling base groove (201) is adjusted by adjusting the screwing depth of the precise adjusting knob (202) on the coupling base groove (201);
the precise adjusting knob (202) comprises an adjusting screw (204) with fine external threads and a locking nut (205) with fine internal threads; the adjusting screw (204) is screwed into the coupling base groove (201) through threads, and the locking nut (205) is sleeved on the adjusting screw (204) through threads;
the focusing lens (40) is arranged at the front end of the light path shell (30) through a lens ring (60); the lens ring (60) is provided with external threads, and the front end of the light path shell (30) is provided with a lens mounting cavity (301) with internal threads; after the focusing lens (40) is embedded into the lens ring (60), the focusing lens is screwed into the lens mounting cavity (301) together with the lens ring (60);
The lens ring (60) is internally provided with a step for installing the focusing lens (40), and the inner wall of the lens ring is provided with internal threads; the focusing lens (40) is embedded into the lens ring (60) from the rear end and is fixed on the step through a lens pressing ring (70) with external threads; the front end of the lens ring (60) is provided with a group of adjusting bolts (601), and the lens ring (60) is screwed into the lens mounting cavity (301) through the adjusting bolts (601);
The top of the light path shell (30) is provided with a group of locking screw holes (302), and when the lens ring (60) is screwed into the lens mounting cavity (301), the lens ring (60) is further fixed by screwing the locking screw holes (302) into the jackscrew;
The positioning hole groove comprises a catheter positioning groove (502) and a catheter positioning hole (503); the inner locking piece of the conduit joint (10) comprises a ball spring screw (106) and a spring pin (107); the guide pipe positioning groove (502) is a triangular groove perpendicular to the inserting direction and is formed in the bottom surface of the inserting part (501), and the ball spring screw (106) and the guide pipe positioning groove (502) are mutually clamped; the guide pipe positioning hole (503) is formed in the top surface of the inserting part (501), and the spring pin (107) penetrates through the guide pipe joint (10) and is clamped with the guide pipe positioning hole (503) on the inserting part (501) inserted into the guide pipe joint (10);
The ball spring screw (106) comprises a screw shell (1061), balls (1062) and a ball spring (1063); the ball spring (1063) and the ball (1062) are arranged in the screw shell (1061); the ball (1062) is positioned at an opening at one end of the screw shell (1061), and the ball spring (1063) is used for ejecting the ball (1062); a counter bore corresponding to the ball (1062) is arranged in the conduit joint (10), and the counter bore is smaller than the ball (1062), so that the ball (1062) is limited in the counter bore; when the inserting part (501) is inserted into the catheter joint (10), the ball (1062) is ejected out and clamped into the catheter positioning groove (502) under the action of the ball spring (1063);
The screw shell (1061) is provided with an adjusting spanner hole (1064) at the other end far away from the ball (1062), threads are arranged outside the screw shell (1061), the screw shell (1061) is screwed into the conduit joint (10) through the adjusting spanner hole (1064), and the screwing depth of the screw shell (1061) can be adjusted;
The spring pin (107) comprises a pin (1071), a pin spring (1072) and a pin shell (1073); the pin column shell (1073) is inserted into the conduit joint (10) and fixed by an external nut; the pin spring (1072) is sleeved on the pin (1071) and is spliced in the pin shell (1073) together; the outer end of the pin column (1071) positioned on the pin column shell (1073) is provided with a handle (1074), and the other end of the pin column is in plug-in fit with the catheter positioning hole (503); when the handle (1074) is lifted upwards, the end of the pin (1071) is separated from the catheter positioning hole (503) and the pin spring (1072) is compressed;
A strip-shaped clamping block (1075) is arranged at the bottom of the handle (1074), a corresponding sliding groove (1076) is formed in the pin column shell (1073), and the clamping block (1075) can slide up and down in the sliding groove (1076); when handle (1074) is rotated so that fixture block (1075) staggers with spout (1076), fixture block (1075) spacing is at round pin post shell (1073) top, realizes the locking to round pin post (1071).
2. The optical coupling laser ablation system according to claim 1, wherein the catheter holder connector (101) is reserved with a plugging slot (103) corresponding to the plugging portion (501) of the laser catheter (50); the number of the positioning columns (504) is more than 3, the number of the positioning column holes (104) is greater than or equal to the number of the positioning columns (504), a trigger switch (105) is arranged in each positioning column hole (104), and when the positioning columns (504) are inserted into the preset positions of the positioning column holes (104), the positioning columns can be abutted or not abutted against the trigger switch (105).
3. The optically coupled laser ablation system according to claim 2, wherein the trigger switch (105) is an optoelectronic or micro-contact type, and is electrically connected to an external mating system, and when the trigger switch is abutted to the positioning post (504), the trigger switch (105) is turned on or off, so as to generate a corresponding signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311668947.5A CN117503335B (en) | 2023-12-06 | Optical coupling laser ablation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311668947.5A CN117503335B (en) | 2023-12-06 | Optical coupling laser ablation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117503335A CN117503335A (en) | 2024-02-06 |
| CN117503335B true CN117503335B (en) | 2024-06-04 |
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