A new type of catheter installation anti-drop mechanism

Abstract

The present invention discloses a novel catheter installation anti-slip mechanism, which includes a lower shell, an upper shell and an anti-slip mechanism, wherein the lower shell is matched and pressed with the upper shell, and the anti-slip mechanism is installed in the lower shell and the upper shell, and the anti-slip mechanism includes a rear bracket, the rear bracket is fixedly installed on the inner bottom surface of the upper shell, a slip ring is rotatably provided in the rear bracket, and a fiber optic connector is fixedly provided at the front end of the slip ring. The device of the present invention can effectively reduce the workload of OCT catheter installation, without confirming the direction of the fiber optic connector twice, and without manually adjusting the direction of the fiber optic connector at the controller end; and, after the catheter connection part is inserted into the controller, it can be released, and the controller can automatically complete the locking of the catheter connection part, and the locking state of the catheter connection part is continuously monitored during use to ensure the diagnostic effect of the OCT equipment and improve the convenience and safety of product use.

Description

Technical Field

[0001] The invention specifically relates to the technical field of medical devices, and in particular to a novel catheter installation anti-dropping mechanism. Background Art

[0002] Optical coherence tomography (OCT) is a new optical diagnostic technology that has developed rapidly in recent years. It uses an interferometer to receive and record the reflected light from biological tissues at different depths obtained from the optical fiber pathway in the catheter inserted into the human body, and then processes it through a computer system to obtain a tomographic image of the biological tissue.

[0003] In existing OCT diagnostic and treatment equipment, an integrated drive motor and optical controller (hereinafter referred to as the "controller") are used to drive the optical fiber path in the OCT imaging catheter (hereinafter referred to as the "catheter") to rotate and retract, thereby realizing scanning and diagnosis of relevant biological tissues. During the process, the system imaging probe emits near-infrared light and receives the light beam reflected back by the biological tissue, and the transmission of the light beam is realized through the optical fiber path. The catheter fiber optic connector is connected to the slip ring fiber optic connector in the controller, and the optical fiber in the catheter rotates at high speed and scans the image driven by the slip ring. Therefore, the reliability of the connection between the catheter and the controller is crucial to the safety and effectiveness of the OCT diagnostic and treatment equipment.

[0004] When installing existing catheters, the operator needs to confirm the direction of the optical fiber connector in the controller end and the catheter connector respectively. After confirming that the optical fiber connector is paired, the catheter connector is inserted into the controller. After insertion, the outer shell of the catheter connector needs to be rotated to ensure that the catheter does not loosen through the mechanical interference between the outer shell (fixedly connected to the outer protective layer of the catheter) and the controller. The installation operation is cumbersome. During the use of the product, the inner shell of the catheter connector (fixedly connected to the optical fiber path) rotates at high speed, and as the number of uses increases, the rotating catheter shell wears the interference structure in the controller, which may cause the catheter to loosen during use, delaying diagnosis and treatment or even causing harm to the patient. Summary of the invention

[0005] To this end, the present invention proposes a novel catheter installation anti-dropping mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: a novel catheter installation anti-slip mechanism, which comprises a lower shell, an upper shell and an anti-slip mechanism, wherein the lower shell is matched with the upper shell by press-fit connection, and the anti-slip mechanism is installed in the lower shell and the upper shell, and the anti-slip mechanism comprises

[0007] A rear bracket, wherein a slip ring is rotatably arranged in the rear bracket, and an optical fiber connector is fixedly arranged at the front end of the slip ring;

[0008] A front bracket, the front bracket is fixedly mounted at the notch at the front of the lower shell, and a limiting groove is provided on the inner wall of the front bracket;

[0009] A small shell, wherein a second protrusion which is interference-fitted with the limiting groove is provided on the side wall of the small shell, so that the small shell is slidably connected with the front bracket;

[0010] A small inner shell, the small inner shell is installed at the rear port of the small outer shell, an optical fiber connector is fixedly arranged in the small inner shell, and the optical fiber connector is matched and plugged with the optical fiber connector;

[0011] And a locking mechanism, wherein the locking mechanism is installed at the rear of the front bracket, and the locking mechanism can position and lock the small shell.

[0012] Further, as a preference, the locking mechanism comprises rod one, rod two, rod three, a rotating shaft and a motor, the middle portion of rod one being rotatably mounted on the rear wall of the front bracket, the middle portion of rod three being fixedly connected to the driving end of the motor, and the motor being fixedly mounted on the front bracket, bearings being fixedly provided at both ends of the two rods two, one end of the rotating shaft being mounted in each of the bearings, and rod three and rod one being fixedly connected to the other ends of the two rotating shafts respectively.

[0013] Further, preferably, the rod 1 and the rod 3 as well as the two rods 2 are always kept relatively parallel.

[0014] Further, preferably, a detection element is fixedly mounted on the bottom of the rear side of the front bracket via a plurality of support columns.

[0015] Furthermore, preferably, a first position detection element is fixedly installed in the lower shell body, and the first position detection element is close to the first trigger structure at the bottom of the rod three. When the rod three rotates, the first trigger structure can trigger the device one and the device two on the first position detection element, thereby determining whether the rod three is in the correct position.

[0016] Furthermore, preferably, a second position detection element is fixedly mounted on the top wall of the rear bracket, and a baffle is fixedly mounted on the front end wall of the slip ring. When the slip ring rotates, the second trigger structure of the baffle can trigger device three on the second position detection element, thereby determining the radial position of the optical fiber connector on the slip ring.

[0017] Further, preferably, a limit stop ring is fixedly provided on the side wall of the small housing.

[0018] Further, as a preference, when the small housing slides into a certain position in the front bracket, the locking structure on the small housing can be interference fit into the locking groove structure in the front bracket.

[0019] The present invention adopts the above technology and has the following beneficial effects compared with the existing technology: the device of the present invention can effectively reduce the workload of OCT catheter installation, without the need to confirm the direction of the optical fiber connector twice, and without the need to manually adjust the direction of the optical fiber connector on the controller end; and, after the catheter connection part is inserted into the controller, it can be released, and the controller can automatically complete the locking of the catheter connection part, and continuously monitor the locking state of the catheter connection part during use, thereby ensuring the diagnostic effect of the OCT equipment and improving the convenience and safety of product use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the explosion structure of a new type of catheter installation anti-drop mechanism;

[0021] Figure 2 A schematic diagram of the installation of a small and medium outer shell and a small inner shell for installing an anti-drop mechanism for a new type of catheter;

[0022] Figure 3 for Figure 2 Cross-section of the middle AA;

[0023] Figure 4 This is a schematic diagram of the installation of a new type of catheter anti-drop mechanism, a middle and rear bracket and a slip ring;

[0024] Figure 5 A partial cross-sectional view of a new type of catheter installation anti-drop mechanism Figure 1 ;

[0025] Figure 6 for Figure 5 Cross-section of the middle BB;

[0026] Figure 7 for Figure 5 A magnified schematic diagram of part C;

[0027] Figure 8 It is a partial installation diagram of a novel catheter installation anti-drop mechanism;

[0028] Fig. 9 It is a partial front view schematic diagram of a novel catheter installation anti-drop mechanism;

[0029] Fig.10 for Fig. 9 An enlarged schematic diagram of the N portion;

[0030] Fig.11 for Fig. 9 Cross-section of the middle LL;

[0031] Fig.12 for Fig.11 A magnified schematic diagram of the middle M part;

[0032] Fig.13 for Fig. 9 Cross-section of middle HH;

[0033] Fig.14 A partial cross-sectional view of a new type of catheter installation anti-drop mechanism Figure 2 ;

[0034] Fig.15 It is a structural schematic diagram of a connecting rod mechanism in a novel catheter installation anti-drop mechanism;

[0035] Fig.16 for Fig.15 Cross-section of RR.

[0036] In the figure: 1, small outer shell; 2, small inner shell; 3, optical fiber connector; 4, front bracket; 5, bearing; 6, rod one; 7, rotating shaft; 8, second position detection element; 9, baffle; 10, slip ring; 11, rear bracket; 12, rod two; 13, motor; 14, rod three; 15, lower shell; 16, first position detection element; 17, support column; 18, installation detection element; 19, upper shell; 21, first protrusion; 31, second protrusion; 32, locking structure; 33, limit stop ring; 41, guide groove; 42, limit groove; 43, locking groove structure; 101, optical fiber connector; 81, device three; 91, second trigger structure; 131, driving end; 141, first trigger structure; 161, device one; 162, device two; 181, device four. DETAILED DESCRIPTION

[0037] 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.

[0038] Example: Please refer to the attached Figure 1-16 The present invention provides a technical solution: a new type of catheter installation anti-slip mechanism, which includes a lower shell 15, an upper shell 19 and an anti-slip mechanism, wherein the lower shell 15 and the upper shell 19 are matched and pressed together, and the lower shell 15 and the upper shell 19 are installed with an anti-slip mechanism, and the anti-slip mechanism includes

[0039] A rear bracket 11, in which a slip ring 10 is rotatably disposed, and a fiber connector 101 is fixedly disposed at the front end of the slip ring 10;

[0040] The front bracket 4 is fixedly mounted at the notch at the front of the lower shell 15, and a limiting groove 42 is provided on the inner wall of the front bracket 4;

[0041] A small housing 1, on the side wall of which a second protrusion 31 is provided which is interference-fitted with the limiting groove 42, so that the small housing 1 is slidably connected with the front bracket 4;

[0042] A small inner shell 2 is installed at the rear port of the small outer shell 1. An optical fiber connector 3 is fixedly arranged in the small inner shell 2, and the optical fiber connector 3 is matched and plugged with the optical fiber connector 101;

[0043] Specifically, the optical fiber connector 3 is connected to the optical fiber passage, and the small housing 1 is connected to the outer protective portion of the OCT catheter;

[0044] And a locking mechanism, which is installed at the rear of the front bracket 4 and can position and lock the small housing 1.

[0045] In this embodiment, the locking mechanism includes a rod 1 6, a rod 2 12, a rod 3 14, a rotating shaft 7 and a motor 13. The middle part of the rod 1 6 can be rotatably mounted on the rear wall of the front bracket 4, the middle part of the rod 3 14 is fixedly connected to the driving end 131 of the motor 13, and the motor 13 is fixedly mounted on the front bracket 4. The two ends of the two rods 12 are fixedly provided with bearings 5, one end of the rotating shaft 7 is installed in each bearing 5, and the rod 3 14 and the rod 1 6 are respectively fixedly connected to the other ends of the two rotating shafts 7;

[0046] Specifically, when the rod 3 14 rotates, the rod 1 6 rotates synchronously, so that the distance between the upper and lower rods 2 12 changes, thereby realizing the locking and anti-dropping function of the catheter connection part, wherein the catheter connection part refers to the component composed of the small outer shell 1, the small inner shell 2 and the optical fiber connector 3;

[0047] It should be added that, from an economic point of view, only a single motor is used to drive the connecting rod mechanism to realize the opening and closing of the upper and lower rods to block and lock the conduit connection part. The upper and lower rods can also be controlled by dual motors or cylinders or electromagnets respectively to open and close the conduit connection part. A double-threaded screw can also be controlled by a single motor, and the motor drives the screw to rotate to control the opening and closing of the upper and lower rods to block and lock the conduit connection part.

[0048] In this embodiment, the rod 1 6 and the rod 3 14 as well as the two rods 2 12 are always kept relatively parallel.

[0049] In this embodiment, a mounting detection element 18 is fixedly mounted on the bottom of the rear side of the front bracket 4 through a plurality of support columns 17, and the mounting detection element 18 can detect whether the conduit connection part is assembled;

[0050] Specifically, when the catheter connection part is installed in place, the second protrusion 31 on the small shell 1 triggers the device 181 of the installation detection element 18, and the control system can confirm that the catheter has been installed in place.

[0051] In this embodiment, a first position detection element 16 is fixedly installed in the lower housing 15, and the first position detection element 16 is close to a first trigger structure 141 at the bottom of the rod 3 14. When the rod 3 14 rotates, the first trigger structure 141 can trigger the first device 161 and the second device 162 on the first position detection element 16, thereby determining whether the rod 3 14 is in the correct position.

[0052] Specifically, before the catheter is assembled, the device 162 is used to confirm that the rod 14 is in the correct position, and then the upper and lower rods 12 are confirmed to be in the correct open position.

[0053] In this embodiment, a second position detection element 8 is fixedly mounted on the top wall of the rear bracket 11, and a baffle 9 is fixedly mounted on the front end wall of the slip ring 10. When the slip ring 10 rotates, the second trigger structure 91 of the baffle 9 can trigger the device three 81 on the second position detection element 8, thereby determining the radial position of the optical fiber connector 101 on the slip ring 10.

[0054] In this embodiment, a limit stop ring 33 is fixedly provided on the side wall of the small housing 1 .

[0055] In this embodiment, when the small housing 1 slides into a certain position in the front bracket 4, the locking structure 32 on the small housing 1 can be inserted into the locking groove structure 43 in the front bracket 4 to achieve a pre-locking connection;

[0056] Specifically, the locking structure 32 on the small housing 1 has a double-guide structure, which facilitates the installation and removal of the conduit connection part;

[0057] Moreover, the lock buckle form can also be changed into a circular buckle or a U-shaped buckle, etc., or a metal sheet can be embedded in the catheter connection part, and the controller can be equipped with a magnet to absorb the catheter.

[0058] In the specific implementation, the specific steps are as follows:

[0059] Step 1: The controller starts self-checking, and triggers the device 3 81 on the second position detection element 8 through the second trigger structure 91 of the baffle 9, to ensure that when the catheter is installed, the optical fiber connector 101 of the slip ring 10 in the controller is in the correct installation position, without manual adjustment and confirmation;

[0060] Step 2: synchronously with step 1, the first trigger structure 141 of the rod 3 14 triggers the device 2 162 of the first position detection element 16, and the motor continuously provides output torque to ensure that the upper and lower rods 12 are always in the open state;

[0061] Specifically, the two-phase work of steps 1 and 2 is completed in a reasonably short time;

[0062] Step 3: After the controller completes the self-check, the conduit part can be installed. The first protrusion 21 on the small inner shell 2 cooperates with the guide groove 41 on the front bracket 4 to ensure that the optical fiber connector 3 is installed correctly, effectively preventing the optical fiber connector 3 from being installed and connected incorrectly with the optical fiber connector 101 on the slip ring 10;

[0063] Step 4: After the catheter is installed, the limiting retaining ring 33 on the small housing 1 contacts the front bracket 4, effectively limiting the position. At the same time, the locking structure 32 on the small housing 1 and the locking groove structure 43 on the front bracket 4 are interference-fitted to realize the pre-locking function of the catheter connection part. The protrusion 31 on the small housing 1 and the limiting groove 42 of the front bracket 4 are installed correspondingly, which can also play a guiding and limiting role.

[0064] Step 5: Performed simultaneously with step 4, the second protrusion 31 on the small shell 1 triggers the device 181 of the installation detection element 18, and the system automatically controls the motor 13 to drive the rod three 14, so that the upper and lower rods 12 move synchronously, limiting the axial movement freedom of the second protrusion 31 on the small shell 1, and cooperating with the limiting groove 42 on the front bracket 4, also limiting the axial rotation freedom of part of the second protrusion 31 of the small shell 1, so as to realize the anti-detachment connection of the catheter; secondly, the first trigger structure 141 on the rod three 14 continuously triggers the device 161 of the first position detection element 16, ensuring that the upper and lower rods 12 are continuously in the catheter anti-detachment position, and the motor 13 continuously outputs torque, and the limiting structures are symmetrically and evenly distributed, and the arrangement is reasonable, so as to ensure the continuous safety and effectiveness of the catheter anti-detachment function.

[0065] It should be added that when the catheter connection part needs to be removed, a control command is issued through a button or other means to make the motor 13 drive the connecting rod mechanism to restore the unlocked state, and the catheter connection part can be removed at this time.

[0066] 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. A novel catheter installation anti-drop mechanism, comprising a lower shell (15), an upper shell (19) and an anti-drop mechanism, wherein: The lower shell (15) and the upper shell (19) are matched and pressed together, and the anti-slip mechanism is installed in the lower shell (15) and the upper shell (19), characterized in that: the anti-slip mechanism includes A rear bracket (11), wherein a slip ring (10) is rotatably arranged inside the rear bracket (11), and an optical fiber connector (101) is fixedly arranged at the front end of the slip ring (10); A front bracket (4), the front bracket (4) being fixedly mounted at a notch at the front of the lower shell (15), and a limiting groove (42) being provided on an inner wall of the front bracket (4); A small housing (1), wherein a second protrusion (31) which is interference-fitted with the limiting groove (42) is provided on a side wall of the small housing (1), so that the small housing (1) is slidably connected to the front bracket (4); A small inner shell (2), the small inner shell (2) being mounted at the rear port of the small outer shell (1), an optical fiber connector (3) being fixedly arranged in the small inner shell (2), and the optical fiber connector (3) being matched and plugged with the optical fiber connector (101); and a locking mechanism, the locking mechanism being mounted on the rear portion of the front bracket (4), the locking mechanism being capable of positioning and locking the small housing (1); The locking mechanism comprises a rod 1 (6), a rod 2 (12), a rod 3 (14), a rotating shaft (7) and a motor (13); the middle portion of the rod 1 (6) is rotatably mounted on the rear wall of the front bracket (4); the middle portion of the rod 3 (14) is fixedly connected to the driving end (131) of the motor (13), and the motor (13) is fixedly mounted on the front bracket (4); bearings (5) are fixedly arranged at both ends of the two rods 2 (12); one end of the rotating shaft (7) is mounted in each of the bearings (5); and the rod 3 (14) and the rod 1 (6) are respectively fixedly connected to the other ends of the two rotating shafts (7).

2. A novel catheter installation anti-drop mechanism according to claim 1, characterized in that: The rod one (6) and the rod three (14) as well as the two rods two (12) are always kept relatively parallel.

3. A novel catheter installation anti-drop mechanism according to claim 1, characterized in that: A mounting detection element (18) is fixedly mounted on the bottom of the rear side of the front bracket (4) via a plurality of support columns (17).

4. A novel catheter installation anti-drop mechanism according to claim 1, characterized in that: A first position detection element (16) is fixedly installed in the lower shell (15), and the first position detection element (16) is close to a first trigger structure (141) at the bottom of the rod three (14). When the rod three (14) rotates, the first trigger structure (141) can trigger the device one (161) and the device two (162) on the first position detection element (16), thereby determining whether the rod three (14) is in the correct position.

5. The novel catheter installation anti-drop mechanism according to claim 1 is characterized in that: A second position detection element (8) is fixedly mounted on the top wall of the rear support (11), and a baffle (9) is fixedly mounted on the front end wall of the slip ring (10); when the slip ring (10) rotates, a second trigger structure (91) of the baffle (9) can trigger a device three (81) on the second position detection element (8), thereby determining the radial position of the optical fiber connector (101) on the slip ring (10).

6. A novel catheter installation anti-drop mechanism according to claim 1, characterized in that: A limit stop ring (33) is fixedly arranged on the side wall of the small housing (1).

7. A novel catheter installation anti-drop mechanism according to claim 1, characterized in that: When the small housing (1) slides into a certain position in the front bracket (4), the locking structure (32) on the small housing (1) can be interference fit into the locking groove structure (43) in the front bracket (4).

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