Optical coherence tomography device

Abstract

The invention relates to the technical field of medical equipment, and discloses an optical coherence tomography device which comprises a host, one side of the host is connected with a PIU body through a data line, the end, away from the host, of the PIU body is in butt joint with an imaging catheter, one side of the imaging catheter is fixedly connected with an auxiliary catheter, and one side of the PIU body is fixedly connected with a limiting clamp. The end, close to the imaging catheter, of the injector is fixedly connected with a butt joint pipe, the bottom of the butt joint pipe is fixedly connected with a liquid suction pipe, a sealing plate A is rotationally connected into the butt joint pipe, a sealing plate B is rotationally connected into the liquid suction pipe, and one side of the butt joint pipe is rotationally connected with a transmission gear A; and one side of the liquid pumping pipe is rotationally connected with a transmission gear B meshed with the transmission gear A. According to the optical coherence tomography device, the problem that when intracranial scanning work is carried out and the contrast agent in the injector is used up, the contrast agent is difficult to refill into the injector can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to an optical coherence tomography device. Background Art

[0002] Optical coherence tomography (OCT) is a high-resolution medical imaging device. With the maturity of technology in recent years, the application of OCT in intracranial scanning has become an important technology in the field of neurointervention. The principle of OCT scanning intracranial blood vessels is to place an imaging catheter into the intracranial blood vessels, analyze the time delay of the built-in light source (such as near-infrared light) reflected to the vessel wall tissue, and convert the internal structure information into a high-resolution image, which is presented on the monitor. This technology provides micron-level resolution, allowing doctors to observe the fine structure of intracranial blood vessels. With the development of OCT technology, it has become an efficient and rapid diagnostic method, which can provide doctors with timely and accurate diagnostic information and help formulate more precise treatment plans; In the process of intracranial scanning, the existing optical coherence tomography device needs to connect a syringe containing contrast agent to the auxiliary catheter of the imaging catheter. Before using the imaging catheter, part of the contrast agent needs to be injected into the imaging catheter to squeeze out the air in the imaging catheter. After the imaging catheter reaches the specified position, the contrast agent continues to be injected to clean the lens of the imaging catheter and the blood in the blood vessels, so as to facilitate the device to scan clearer images. However, when using a syringe to inject contrast agent, it is usually injected manually. When working for intracranial scanning, its working time is generally long. During this period, in order to keep the imaging catheter in static pressure, the syringe cannot be removed from the auxiliary catheter. Due to its limited capacity, when performing intracranial scanning, if the contrast agent in the syringe is used up, it is difficult to refill the syringe with contrast agent. During use, we propose an optical coherence tomography device. Summary of the invention

[0003] The object of the present invention is to provide an optical coherence tomography device to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an optical coherence tomography device, comprising a host, one side of the host is connected to a PIU body through a data cable, an end of the PIU body away from the host is docked with an imaging catheter, one side of the imaging catheter is fixedly connected to a secondary catheter, one side of the PIU body is fixedly connected to a limit card, a syringe is fixedly connected to the limit card, a piston rod is slidably connected in the syringe, one end of the syringe close to the imaging catheter is fixedly connected to a docking tube, the docking tube is fixedly docked with the secondary catheter, a liquid extraction tube is fixedly connected to the bottom of the docking tube, a sealing plate A is rotatably connected in the docking tube, a sealing plate B is rotatably connected in the liquid extraction tube, a transmission gear A is rotatably connected to one side of the docking tube, a transmission gear B meshing with the transmission gear A is rotatably connected to one side of the liquid extraction tube, the transmission gear A and the sealing plate A are fixedly docked, the transmission gear B and the sealing plate B are fixedly docked, a knob A is fixedly connected to the transmission gear A, a contrast agent bottle is placed on one side of the PIU body, and the bottom end of the liquid extraction tube extends into the contrast agent bottle.

[0005] Preferably, a mounting frame is fixedly connected to a side of the PIU body close to the limit card, a screw rod A is rotatably connected to an inner wall of the mounting frame close to the piston rod, a connecting rod is rotatably connected to a side of the mounting frame away from the screw rod A, the connecting rod is fixedly connected to the screw rod A, a transmission frame is threadedly connected to the screw rod A, and the transmission frame is fixedly connected to the end of the piston rod.

[0006] Preferably, an outer wall of one side of the mounting bracket close to the connecting rod is rotatably connected to a limiting gear, the limiting gear is fixedly docked with the connecting rod, and a torsion spring is provided at the docking point between the connecting rod and the mounting bracket.

[0007] Preferably, a fixing frame is fixedly connected to one side of the PIU body close to the mounting frame, inner walls on both sides of the fixing frame are rotatably connected to shafts, and a screw rod B is fixedly connected between the two shafts.

[0008] Preferably, a connecting rod A is fixedly connected to the transmission gear A, a connecting rod C is rotatably connected to the side of the fixed frame away from the PIU body, the connecting rod C is fixedly docked with the adjacent shaft rod end, and a connecting rod B is rotatably connected between an end of the connecting rod A away from the transmission gear A and an end of the connecting rod C away from the fixed frame.

[0009] Preferably, a transmission plate is threadedly connected to the screw rod B, a mounting seat is fixedly connected to a side of the transmission plate close to the limit gear, and a limit block meshing with the limit gear is slidably connected to the mounting seat.

[0010] Preferably, a plurality of springs are fixedly connected between the mounting seat and the limit block, a limit rod is fixedly connected to the side of the top of the transmission plate away from the screw rod B, and the limit rod is slidably connected to the fixing frame.

[0011] Preferably, a limit frame is slidably connected to the connecting rod, and the limit frame is fixedly connected to the transmission frame through a frame body. The limit frame is rotatably connected to an indicator needle at one end close to the syringe, and the outer wall of one side of the mounting frame close to the screw rod A is rotatably connected to a knob B, and the knob B is fixedly connected to the end of the screw rod A.

[0012] Preferably, a placement plate is fixedly connected to one side of the PIU body, the placement plate is located below the docking tube, and the contrast agent bottle is located on the placement plate.

[0013] Preferably, a workbench is provided on the top of the mainframe, a double-sided display is provided on the workbench, and storage bars and storage hooks are provided on both sides of the workbench.

[0014] Compared with the prior art, the present invention has the following beneficial effects: During the injection process of the present invention, the knob A can be used to drive the transmission gear A and the sealing plate A to rotate. During this process, the transmission gear A drives the transmission gear B and the sealing plate B to rotate, thereby changing the opening and closing states of the docking tube and the liquid extraction tube. When the docking tube is in an open state, the liquid extraction tube is in a closed state. At this time, the contrast agent in the syringe can be injected into the imaging catheter through the docking tube. When the docking tube is in a closed state, the liquid extraction tube is in an open state. At this time, the piston rod can be pulled to use the liquid extraction tube to suck the contrast agent into the syringe, thereby completing the work of replenishing the contrast agent in the syringe, avoiding the problem that it is difficult to refill the syringe with the contrast agent when the contrast agent in the syringe is used up during intracranial scanning, and effectively improving the auxiliary function of the device for intracranial scanning. In the process of the transmission gear A rotating, the present invention can complete the transmission work of the screw rod B through the cooperation of the connecting rod A, the connecting rod B and the connecting rod C. When the sealing plate A is in the open state, the limit block will be stuck on the limit gear, thereby completing the one-way limit of the screw rod A by cooperating with the limit gear. When the sealing plate A is in the closed state, the limit block will be separated from the limit gear. At this time, the screw rod A can be driven to rotate in the opposite direction through the rebound characteristics of the torsion spring. During the reverse rotation process, the screw rod A can drive the piston rod to be pulled toward the outside of the syringe through the transmission frame. At this time, the contrast agent in the contrast agent bottle can be automatically drawn into the syringe through the liquid extraction tube, further improving the auxiliary performance of the device when the contrast agent is sucked into the syringe. The present invention fixes the syringe on a limit card on one side of the PIU body, so that the syringe can be fixed during intracranial scanning, avoiding the problem of easy accidental contact caused by directly placing the syringe on a workbench in traditional operation, and avoiding the problem of the syringe sucking blood in the blood vessel into the imaging catheter due to accidental contact, thereby effectively improving the auxiliary function and safety of the device for intracranial scanning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the other side of the whole invention; Figure 3 This is a schematic diagram of the PIU body structure of the present invention; Figure 4 It is a schematic diagram of the structure of the syringe of the present invention; Figure 5 This is a schematic diagram of the butt-joint pipe structure of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the butt-joint pipe of the present invention; Figure 7 It is a schematic diagram of the structure of the mounting frame and its connecting parts of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the mounting frame of the present invention; Fig. 9 It is a schematic diagram of the structure of the fixing frame and its connecting parts of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the transmission plate and the mounting seat of the present invention; Fig.11 For the present invention Figure 7 A schematic diagram of the enlarged structure of area A is shown.

[0016] In the figure: 1. main unit; 11. workbench; 2. PIU body; 21. imaging catheter; 22. auxiliary catheter; 23. placement plate; 3. limit card; 31. syringe; 32. piston rod; 4. docking tube; 41. suction tube; 42. sealing plate A; 43. sealing plate B; 44. transmission gear A; 45. transmission gear B; 46. knob A; 5. contrast agent bottle; 6. mounting bracket; 61. screw A; 62. connecting rod; 63. transmission bracket; 64. limit bracket; 65. indicator needle; 66. knob B; 67. limit gear; 68. torsion spring; 7. fixing bracket; 71. shaft rod; 72. screw B; 73. connecting rod A; 74. connecting rod B; 75. connecting rod C; 8. transmission plate; 81. mounting seat; 82. limit block; 83. spring; 84. limit rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-11 The present invention provides a technical solution: an optical coherence tomography device, comprising a host 1, a workbench 11 is arranged on the top of the host 1, and a double-sided display is arranged on the workbench 11. The host 1 is the main control body of the optical coherence tomography device, and two working areas are arranged on the workbench 11, one of which is the main control area, which is operated by a specialized technician, and the other side is the observation area, which is mainly for the operator to observe the scanned information more timely when performing intracranial scanning. Storage bars and storage hooks are arranged on both sides of the workbench 11, and some small objects can be placed through the storage bars and the hooks. One side of the host 1 is connected to the PIU body 2 through a data cable, and the end of the PIU body 2 away from the host 1 is connected to the imaging catheter 21, and one side of the imaging catheter 21 is fixedly connected to the auxiliary catheter 22.

[0019] Furthermore, during the operation, the imaging catheter 21 is docked with the PIU body 2, and then the contrast agent is injected into the imaging catheter 21 through the auxiliary catheter 22. Then, the imaging catheter 21 is pushed into the patient's body and pushed into the intracranial blood vessels along the patient's blood vessels. After that, the imaging catheter 21 can be controlled by the host 1 to scan the patient's intracranial blood vessels. After the scan is completed, the scan information will be displayed on the display on the workbench 11 for the operator to view.

[0020] Combined with Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, a limit card 3 is fixedly connected to one side of the PIU body 2, a syringe 31 is fixedly connected to the limit card 3, a piston rod 32 is slidably connected inside the syringe 31, a docking tube 4 is fixedly connected to one end of the syringe 31 close to the imaging catheter 21, the docking tube 4 is fixedly docked with the auxiliary catheter 22, a liquid extraction tube 41 is fixedly connected to the bottom of the docking tube 4, a sealing plate A42 is rotatably connected inside the docking tube 4, a sealing plate B43 is rotatably connected inside the liquid extraction tube 41, a transmission gear A44 is rotatably connected to one side of the docking tube 4, a transmission gear B45 meshing with the transmission gear A44 is rotatably connected to one side of the liquid extraction tube 41, the transmission gear A44 is fixedly docked with the sealing plate A42, the transmission gear B45 is fixedly docked with the sealing plate B43, a knob A46 is fixedly connected to the transmission gear A44, and an imaging catheter 21 is placed on one side of the PIU body 2. The bottom end of the contrast agent bottle 5 and the liquid extraction tube 41 extend into the contrast agent bottle 5, and a placement plate 23 is fixedly connected to one side of the PIU body 2, and the placement plate 23 is located below the docking tube 4, and the contrast agent bottle 5 is located on the placement plate 23. A mounting frame 6 is fixedly connected to the side of the PIU body 2 close to the limit card 3, and a screw rod A61 is rotatably connected to the inner wall of the mounting frame 6 on the side close to the piston rod 32, and a connecting rod 62 is rotatably connected to the side of the mounting frame 6 away from the screw rod A61, and the connecting rod 62 is fixedly docked with the screw rod A61, and a transmission frame 63 is threadedly connected to the screw rod A61, and the transmission frame 63 is fixedly docked with the end of the piston rod 32, and a torsion spring 68 is provided at the docking point between the connecting rod 62 and the mounting frame 6, and a knob B66 is rotatably connected to the outer wall of the side of the mounting frame 6 close to the screw rod A61, and the knob B66 is fixedly docked with the end of the screw rod A61.

[0021] Furthermore, during the operation, the contrast agent bottle 5 containing the contrast agent is placed on the placement plate 23, and the knob B66 is turned to drive the screw rod A61 and the connecting rod 62 to rotate. During the rotation of the screw rod A61, the transmission frame 63 can be driven to move. At this time, the transmission frame 63 will drive the piston rod 32 to enter the syringe 31, and the air in the syringe 31 can be discharged through the imaging catheter 21. During the rotation of the connecting rod 62, the torsion spring 68 can be tightened, and then the knob A46 is turned to drive the transmission gear A44 to rotate. The wheel A44 drives the sealing plate A42 to rotate, and the sealing plate A42 is used to seal the connecting pipe 4. In this process, the transmission gear A44 drives the transmission gear B45 to rotate. During the rotation process, the transmission gear B45 can drive the sealing plate B43 to rotate. At this time, due to the rotation of the sealing plate B43, the liquid extraction tube 41 is connected with the syringe 31. At this time, due to the reaction force of the torsion spring 68, the shaft rod 71 and the screw rod B72 are driven to rotate in the opposite direction. At this time, during the reverse rotation process, the screw rod B72 can pull the piston rod 32 toward the outside of the syringe 31. In this process, The contrast medium in the contrast medium bottle 5 can be filled into the syringe 31. When the syringe 31 is filled with contrast medium, the knob B66 is rotated in the opposite direction, and the transmission gear A44 and the transmission gear B45 cooperate to make the sealing plate A42 and the sealing plate B43 rotate in the opposite direction. At this time, the sealing plate A42 can open the docking tube 4 due to the rotation, and the rotation of the sealing plate B43 can seal the liquid extraction tube 41. After that, when the secondary conduit 22 is docked with the syringe 31, the knob B66 is manually rotated, and the rotating screw rod A61 is used to drive the transmission frame 63 to move, and the transmission frame 63 is used to move the active conduit 22 to the syringe 31. The plug rod 32 is pushed toward the syringe 31. At this time, the contrast agent in the syringe 31 will be injected into the imaging catheter 21, and the air in the imaging catheter 21 will be squeezed out. Due to the sealing effect of the syringe 31 at one end of the imaging catheter 21, the static pressure in the imaging catheter 21 can be maintained. After that, after the imaging catheter 21 reaches the designated scanning position, the knob B66 is turned again, and the screw rod A61 and the transmission frame 63 cooperate to continue to inject the contrast agent in the syringe 31 into the imaging catheter 21, so as to clean the scanning head of the imaging catheter 21 and the blood in the blood vessels.

[0022] Combined with Figure 5 , Figure 7 , Fig. 9 , Fig.10 and Fig.11As shown, the outer wall of the mounting frame 6 on one side close to the connecting rod 62 is rotatably connected to the limit gear 67, one side of the tooth block of the limit gear 67 is an inclined surface, and the other side is a plane, the limit gear 67 is fixedly docked with the connecting rod 62, the PIU body 2 is fixedly connected to the fixing frame 7 on the side close to the mounting frame 6, the inner walls on both sides of the fixing frame 7 are rotatably connected to the shaft rod 71, the two shaft rods 71 ​​are fixedly connected with the screw rod B72, the transmission gear A44 is fixedly connected with the connecting rod A73, the fixing frame 7 is rotatably connected to the side away from the PIU body 2 with the connecting rod C75, the connecting rod C75 is fixedly docked with the adjacent end of the shaft rod 71, the connecting rod A73 is rotatably connected between the end of the connecting rod A73 away from the transmission gear A44 and the end of the connecting rod C75 away from the fixing frame 7, the screw rod B72 is threadedly connected with the transmission plate 8, the transmission plate 8 is close to One side of the limit gear 67 is fixedly connected with a mounting seat 81, and a limit block 82 that meshes with the limit gear 67 is slidably connected to the mounting seat 81. The top of the limit block 82 is an inclined surface, and its bottom is a plane, and the inclined surface of the limit block 82 fits the inclined surface of the limit gear 67. Through the cooperation of the two inclined surfaces, the limiting effect of the limit block 82 on the limit gear 67 can be reduced, so that when the limit gear 67 rotates in the direction of the inclined surface, the direction of the force can be changed through the two inclined surfaces, so that the limit block 82 contracts, ensuring that the limit gear 67 can rotate freely in this direction. A number of springs 83 are fixedly connected between the mounting seat 81 and the limit block 82, and a limit rod 84 is fixedly connected to the side of the top of the transmission plate 8 away from the screw rod B72, and the limit rod 84 is slidably connected to the fixed frame 7.

[0023] Furthermore, when the knob A46 is turned to rotate the transmission gear A44, the transmission gear B45, the sealing plate A42 and the sealing plate B43, the transmission gear A44 can cooperate with the connecting rod A73, the connecting rod B74 and the connecting rod C75 to drive the shaft 71 and the screw rod B72 to rotate, and the screw rod B72 is used to complete the transmission work of the transmission plate 8. When the sealing plate A42 is in the open state and the sealing plate B43 is in the closed state, the transmission plate 8 will be close to the limit gear 67 and the limit block 82 will be stuck between the tooth blocks of the limit gear 67. In this process, because the limit block 82 is meshed with the limit gear 67 and the inclined surfaces of the limit block 82 and the limit gear 67 are in contact with each other, the screw rod A61 and the connecting rod 62 can only rotate in the direction of the inclined surface of the tooth block of the limit gear 67, and the screw rod A61 and the connecting rod 62 can only rotate in the direction of the inclined surface of the tooth block of the limit gear 67. When the rod A61 rotates in this direction, it will drive the transmission frame 63 to move toward the syringe 31, that is, the piston rod 32 is driven by the transmission frame 63 to squeeze into the syringe 31, so that the contrast agent in the syringe 31 can be squeezed out. When the sealing plate A42 is in a closed state and the sealing plate B43 is in an open state, the transmission plate 8 will move away from the limit gear 67 and drive the limit block 82 to disengage from the limit gear 67. At this time, the limit gear 67 loses the limiting effect of the limit block 82, and the torsion spring 68 can start to rebound, and drive the screw rod A61 and the connecting rod 62 to rotate in the opposite direction, and drive the piston rod 32 to move out of the syringe 31 through the transmission frame 63. In this process, the syringe 31 can automatically absorb the contrast agent in the contrast agent bottle 5, thereby completing the automatic filling of the syringe 31 with contrast agent.

[0024] Combined with Figure 7 As shown, a limit frame 64 is sleeved on the connecting rod 62 and is slidably connected thereto. The limit frame 64 is fixedly connected to the transmission frame 63 through a frame body. An end of the limit frame 64 close to the syringe 31 is rotatably connected to an indicator needle 65 .

[0025] Furthermore, during the movement of the transmission frame 63, the transmission frame 63 will drive the limit frame 64 to move together. During the movement of the limit frame 64, the indicator needle 65 will be driven to move along the syringe 31. At this time, the operator can more conveniently know the remaining amount of contrast agent in the syringe 31 through the indicator needle 65, which is convenient for timely replenishing the contrast agent in the syringe 31.

[0026] Working principle: firstly, place the host 1 on one side of the bed, then dock the PIU body 2 with the host 1, then dock the imaging catheter 21 with the PIU body 2, then place the contrast agent bottle 5 containing contrast agent on the placement board 23, and insert the liquid extraction tube 41 into the contrast agent bottle 5; At this time, the knob B66 is turned to drive the screw rod A61 and the connecting rod 62 to rotate. During the rotation of the screw rod A61, the transmission frame 63 can be driven to move. At this time, the transmission frame 63 drives the piston rod 32 to enter the syringe 31 and discharge the air in the syringe 31 through the imaging catheter 21. During the rotation of the connecting rod 62, the torsion spring 68 can be tightened. Then, the knob A46 is turned to drive the transmission gear A44 to rotate, and the transmission gear A44 drives the sealing plate A42 to rotate, and the sealing plate A42 is used to seal the butt joint 4. In this process, the transmission gear A44 drives the transmission gear B45 to rotate, and the transmission gear B45 can drive the sealing plate B43 to rotate during the rotation. At this time, due to the rotation of the sealing plate B43, the liquid extraction tube 41 is connected to the syringe 31. At this time, due to the reaction force of the torsion spring 68, the shaft rod 71 and the screw rod B72 are driven to rotate in a reverse manner. In this process, the screw rod B72 can pull the piston rod 32 out of the syringe 31 during the reverse rotation. During this process, the contrast medium in the contrast medium bottle 5 can be filled into the syringe 31. When the syringe 31 is filled with the contrast medium, the knob B66 is rotated in the reverse direction, and the transmission gear A44 and the transmission gear B45 cooperate to make the sealing plate A42 and the sealing plate B43 rotate in the reverse direction. At this time, the sealing plate A42 can open the docking tube 4 due to the rotation, and the rotation of the sealing plate B43 can seal the liquid extraction tube 41. After that, when the secondary catheter 22 is docked with the syringe 31, the knob B66 is manually turned, and the rotating screw A61 is used to drive the transmission frame 63 to move, and the transmission frame 63 is used to push the piston rod 32 into the syringe 31. At this time, the contrast agent in the syringe 31 will be injected into the imaging catheter 21, and the air in the imaging catheter 21 will be squeezed out. In addition, due to the sealing effect of the syringe 31 at one end of the imaging catheter 21, the static pressure in the imaging catheter 21 can be maintained. After that, after the imaging catheter 21 reaches the designated scanning position, the knob B66 is turned again, and the screw A61 and the transmission frame 63 are used to cooperate to continue to inject the contrast agent in the syringe 31 into the imaging catheter 21, so as to clean the scanning head of the imaging catheter 21 and the blood in the blood vessels; When the knob A46 is turned to rotate the transmission gear A44, the transmission gear B45, the sealing plate A42 and the sealing plate B43, the transmission gear A44 can cooperate with the connecting rod A73, the connecting rod B74 and the connecting rod C75 to drive the shaft 71 and the screw rod B72 to rotate, and the screw rod B72 is used to complete the transmission work of the transmission plate 8. When the sealing plate A42 is in the open state and the sealing plate B43 is in the closed state, the transmission plate 8 will be close to the limit gear 67, and the limit block 82 will be stuck between the tooth blocks of the limit gear 67. In this process, because the limit block 82 is meshed with the limit gear 67, and the inclined surfaces of the limit block 82 and the limit gear 67 are in contact with each other, the screw rod A61 and the connecting rod 62 can only rotate in the direction of the inclined surface of the tooth block of the limit gear 67, and the screw rod When A61 rotates in this direction, it will drive the transmission frame 63 to move toward the syringe 31, that is, the transmission frame 63 drives the piston rod 32 to squeeze into the syringe 31, so that the contrast agent in the syringe 31 can be squeezed out. When the sealing plate A42 is in a closed state and the sealing plate B43 is in an open state, the transmission plate 8 will move away from the limit gear 67 and drive the limit block 82 to disengage from the limit gear 67. At this time, the limit gear 67 loses the limiting effect of the limit block 82, and the torsion spring 68 can start to rebound, and drive the screw rod A61 and the connecting rod 62 to rotate in the opposite direction, and drive the piston rod 32 to move out of the syringe 31 through the transmission frame 63. In this process, the syringe 31 can automatically absorb the contrast agent in the contrast agent bottle 5, thereby completing the automatic filling of the syringe 31 with contrast agent.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical coherence tomography device, comprising a host (1), one side of the host (1) being connected to a PIU body (2) via a data cable, one end of the PIU body (2) being connected to an imaging catheter (21) away from the host (1), one side of the imaging catheter (21) being fixedly connected to a secondary catheter (22), characterized in that: A limit card (3) is fixedly connected to one side of the PIU body (2), a syringe (31) is fixedly connected to the limit card (3), a piston rod (32) is slidably connected to the syringe (31), a docking tube (4) is fixedly connected to one end of the syringe (31) close to the imaging catheter (21), the docking tube (4) is fixedly docked with the auxiliary catheter (22), a liquid extraction tube (41) is fixedly connected to the bottom of the docking tube (4), a sealing plate A (42) is rotatably connected to the inside of the docking tube (4), and a sealing plate B (42) is rotatably connected to the inside of the liquid extraction tube (41). 43), a transmission gear A (44) is rotatably connected to one side of the docking tube (4), a transmission gear B (45) meshing with the transmission gear A (44) is rotatably connected to one side of the liquid extraction tube (41), the transmission gear A (44) and the sealing plate A (42) are fixedly docked, the transmission gear B (45) and the sealing plate B (43) are fixedly docked, a knob A (46) is fixedly connected to the transmission gear A (44), a contrast agent bottle (5) is placed on one side of the PIU body (2), and the bottom end of the liquid extraction tube (41) extends into the contrast agent bottle (5).

2. The optical coherence tomography device according to claim 1, characterized in that: A mounting frame (6) is fixedly connected to a side of the PIU body (2) close to the limit card (3); a screw rod A (61) is rotatably connected to an inner wall of a side of the mounting frame (6) close to the piston rod (32); a connecting rod (62) is rotatably connected to a side of the mounting frame (6) away from the screw rod A (61); the connecting rod (62) and the screw rod A (61) are fixedly connected; a transmission frame (63) is threadedly connected to the screw rod A (61); and the transmission frame (63) is fixedly connected to an end of the piston rod (32).

3. The optical coherence tomography device according to claim 2, characterized in that: An outer wall of one side of the mounting frame (6) close to the connecting rod (62) is rotatably connected to a limit gear (67), the limit gear (67) is fixedly connected to the connecting rod (62), and a torsion spring (68) is provided at the connection point between the connecting rod (62) and the mounting frame (6).

4. The optical coherence tomography device according to claim 2, characterized in that: A fixing frame (7) is fixedly connected to one side of the PIU body (2) close to the mounting frame (6); inner walls on both sides of the fixing frame (7) are rotatably connected to shaft rods (71); and a screw rod B (72) is fixedly connected between the two shaft rods (71).

5. The optical coherence tomography device according to claim 4, characterized in that: A connecting rod A (73) is fixedly connected to the transmission gear A (44); a connecting rod C (75) is rotatably connected to the side of the fixing frame (7) away from the PIU body (2); the connecting rod C (75) is fixedly connected to the end of the adjacent shaft rod (71); a connecting rod B (74) is rotatably connected between an end of the connecting rod A (73) away from the transmission gear A (44) and an end of the connecting rod C (75) away from the fixing frame (7).

6. The optical coherence tomography device according to claim 3, characterized in that: A transmission plate (8) is threadedly connected to the screw rod B (72); a mounting seat (81) is fixedly connected to a side of the transmission plate (8) close to the limit gear (67); and a limit block (82) is slidably connected to the mounting seat (81) and meshes with the limit gear (67).

7. The optical coherence tomography device according to claim 6, characterized in that: A plurality of springs (83) are fixedly connected between the mounting seat (81) and the limit block (82), a limit rod (84) is fixedly connected to the top of the transmission plate (8) on a side away from the screw rod B (72), and the limit rod (84) is slidably connected to the fixing frame (7).

8. The optical coherence tomography device according to claim 2, characterized in that: A limit frame (64) is sleeved on the connecting rod (62) and is slidably connected thereto. The limit frame (64) is fixedly connected to the transmission frame (63) via a frame body. An end of the limit frame (64) close to the syringe (31) is rotatably connected to an indicator needle (65). An outer wall of one side of the mounting frame (6) close to the screw rod A (61) is rotatably connected to a knob B (66). The knob B (66) is fixedly connected to the end of the screw rod A (61).

9. The optical coherence tomography device according to claim 1, characterized in that: A placement plate (23) is fixedly connected to one side of the PIU body (2); the placement plate (23) is located below the docking tube (4); and the contrast agent bottle (5) is located on the placement plate (23).

10. The optical coherence tomography device according to claim 1, characterized in that: A workbench (11) is arranged on the top of the host (1), a double-sided display is arranged on the workbench (11), and storage rails and storage hooks are arranged on both sides of the workbench (11).

Images