OCT catheter rotation withdrawal device

Abstract

The application relates to the technical field of image equipment, and provides an OCT catheter rotating and retracting device, which comprises a supporting mechanism, a retracting mechanism and a rotating mechanism, the mounting piece in the supporting mechanism comprises a platform part and a convex ring part arranged on the platform part, the convex ring part and the platform part cooperatively form a space allowing the support plate to pass through; the platform part and the support plate are oppositely and spacedly arranged, a sliding guide assembly is arranged between the platform part and the support plate; the retracting mechanism is arranged on the side of the support plate away from the sliding guide assembly, a retracting output shaft in the retracting mechanism is drivingly connected to the convex ring part and drives the mounting piece to move relative to the support plate; the rotating mechanism is arranged on the side of the platform part away from the support plate, a second rotating assembly in the rotating mechanism is used for connecting the OCT catheter, and the second rotating assembly is drivingly connected to a first rotating assembly. The OCT catheter rotating and retracting device can realize more excellent structural design cooperation, improve the stability of equipment rotating and retracting, and better adapt to the imaging of optical images.

Description

Technical Field

[0001] This invention relates to the field of imaging equipment technology, and more particularly to an OCT catheter rotation and retraction device. Background Technology

[0002] Optical interferometry (OCT) imaging systems, as the latest generation of intravascular imaging equipment, have demonstrated extremely high clinical value in the diagnosis of vascular lesions due to the integration of advanced photonics and fiber optic technology. However, in existing technologies, during high-frequency motion, jamming can easily occur due to gaps in the axial fit or the introduction of contaminants, leading to an imbalance in the phase match between linear and rotational motion, affecting image quality. Simultaneously, rotational motion drive issues such as concentricity deviations or tension fluctuations can cause significant radial runout in the rotary connector, reducing scanning stability and resulting in image artifacts. Summary of the Invention

[0003] The purpose of this invention is to provide an OCT catheter rotation and retraction device that can effectively improve image quality.

[0004] To achieve this objective, the present invention adopts the following technical solution: OCT catheter rotation retraction device, including: The support mechanism includes a support plate, a mounting component, and a sliding guide assembly. The mounting component includes a platform portion and a raised ring portion disposed on one side of the platform portion. The raised ring portion and the platform portion cooperate to form a space that allows the support plate to pass through. The platform section and the support plate are arranged at a distance from each other, and the moving guide component is disposed between the platform section and the support plate; A retraction mechanism is provided on the side of the support plate away from the sliding guide assembly. The retraction output shaft in the retraction mechanism is connected to the protruding ring portion, and the protruding ring portion is driven to move relative to the support plate along the A direction through the retraction output shaft. A rotating mechanism is disposed on the side of the platform that is away from the support plate. The rotating mechanism includes a first rotating component and a second rotating component. The second rotating component can be used to connect the OCT catheter. The second rotating component and the first rotating component are connected by a transmission belt.

[0005] Compared with the prior art, the OCT catheter rotation and retraction device provided by the present invention has the following advantages: through the overall structural design, the retraction mechanism, the rotation mechanism, and the control plate are coupled and set on the support mechanism, making full use of the overall structural space. This ensures that the structures of the retraction mechanism and the rotation mechanism do not interfere with each other and cooperate with each other, which can not only ensure the synchronization accuracy of the compound motion, but also reduce the impact of individual components on the overall device. It can ensure long-term stable operation under high-frequency continuous scanning conditions, thereby improving the clarity and stability of OCT imaging. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0007] Figure 1 This is a first-view structural schematic diagram of the OCT catheter rotation and retraction device provided in an embodiment of the present invention; Figure 2 yes Figure 1 A magnified view of a section at point H in the middle; Figure 3 This is a schematic diagram of the OCT catheter rotation and retraction device provided in an embodiment of the present invention from a second perspective. Figure 4 This is a cross-sectional view of a portion of the first rotating component in the OCT catheter rotation and retraction device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the OCT catheter rotation and retraction device provided in this embodiment of the invention, which includes a support mechanism.

[0008] In the image: 10. OCT catheter; 100. Support mechanism; 110. Support plate; 120. Mounting component; 121. Platform section; 122. Raised ring section; 130. Sliding guide assembly; 131. Guide rail; 132. Guide slider; 200. Retraction mechanism; 210. Retraction output shaft; 221. Transmission connecting component; 222. First vibration isolation component; 230. Retraction motor; 240. First mounting base; 250. Second vibration isolation component; 260. Control board; 270. Mounting strip; 280. Limit switch; 300. Rotating mechanism; 301. First bearing; 302. Second bearing; 303. Bearing connecting plate; 304. Mounting plate; 310. First rotating assembly; 311. Rotating output shaft; 312. Rotary motor; 313. Second mounting base; 314. Third vibration isolator; 315. Coupling; 316. Auxiliary transmission rod; 317. First pulley; 320. Second rotating assembly; 322. Second pulley; 323. Transmission belt; 324. Fixing component; 325. Rotary connector. Detailed Implementation

[0009] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0010] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0011] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0012] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0013] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0014] This embodiment provides an OCT catheter rotation and retraction device, which can improve image quality. Specifically, the OCT catheter rotation and retraction device includes a support mechanism 100, a retraction mechanism 200, and a rotation mechanism 300: the support mechanism 100 includes a support plate 110, a mounting member 120, and a sliding guide assembly 130, wherein the mounting member 120 includes a platform portion 121 and a protruding ring portion 122 disposed on one side of the platform portion 121, the protruding ring portion 122 and the platform portion 121 cooperate to form a space that allows the support plate 110 to pass through; the platform portion 121 and the support plate 110 are disposed at a distance from each other, and the sliding guide assembly 130 is disposed between the platform portion 121 and the support plate 110. A retraction mechanism 200 is disposed on the side of the support plate 110 opposite to the sliding guide assembly 130. The retraction output shaft 210 of the retraction mechanism 200 is drivenly connected to the protruding ring portion 122, and the retraction output shaft 210 drives the protruding ring portion 122 to move relative to the support plate 110 along direction A. A rotation mechanism 300 is disposed on the side of the platform portion 121 opposite to the support plate 110. The rotation mechanism 300 includes a first rotation assembly 310 and a second rotation assembly 320. The second rotation assembly 320 can be used to connect the OCT catheter 10, and the second rotation assembly 320 and the first rotation assembly 310 are drivenly connected by a transmission belt 323.

[0015] In this case, direction A is parallel to the sliding direction of the sliding guide component 130.

[0016] See Figure 5The mounting component 120 includes a platform portion 121 and a raised ring portion 122 disposed on one side of the platform portion 121. The platform portion 121 is a rectangular platform, and the raised ring portion 122 stands on the platform of the platform portion 121. The raised ring portion 122 includes a mounting hole at the top and arms on both sides, forming a space through which the support plate 110 can pass. The support plate 110 is a rectangular plate, and the platform portion 121 and the support plate 110 are arranged at intervals to each other, forming a cross shape. On the side of the platform portion 121 away from the support plate 110, a first rotating assembly 310 and a second rotating assembly 320 are arranged side by side, and on the side of the support plate 110 away from the sliding guide assembly 130, a retraction mechanism 200 is arranged. The retraction mechanism 200 controls the retraction sliding direction to be perpendicular to the direction in which the first rotating assembly 310 and the second rotating assembly 320 are arranged side by side.

[0017] See Figure 5 The sliding guide assembly 130 is disposed between the platform portion 121 of the mounting member 120 and the support plate 110. The retraction mechanism 200 is disposed on the support plate 110, and the retraction output shaft 210 in the retraction mechanism 200 is drivenly connected to the protruding ring portion 122, thereby enabling the mounting member 120 to move relative to the support plate 110. The rotating mechanism 300 is disposed on the platform portion 121 of the mounting member 120. The first rotating assembly 310 and the second rotating assembly 320 are arranged side by side on the platform portion 121 along a direction perpendicular to the sliding direction of the sliding guide assembly 130. The second rotating assembly 320 is drivenly connected to the rotating output shaft 311 in the first rotating assembly 310. The second rotating assembly 320 can be used to connect the OCT catheter 10.

[0018] In use, the OCT catheter 10 is connected to the second rotating assembly 320, and then the first rotating assembly 310 is started. The rotating output shaft 311 is linked with the second rotating assembly 320 to drive the OCT catheter 10 to rotate accordingly. At the same time, the retraction mechanism 200 is started. The retraction output shaft 210 drives the mounting part 120 to move relative to the support plate 110, thereby driving the entire rotating mechanism 300 set on the platform part 121 of the mounting part 120 to reciprocate along the A direction, that is, driving the OCT catheter 10 to move along the A direction.

[0019] Throughout the process, rotation and retraction can be controlled separately through independently configured rotation mechanism 300 and retraction mechanism 200. The rotation mechanism 300 and retraction mechanism 200 are arranged in a cross shape and cooperate with mounting component 120 and support plate 110 to achieve stable and reliable movement. Efficient system integration is achieved through coupling control board 260, and high-precision rotation control is achieved through parallel arrangement of first rotation component 310 and second rotation component 320. The cooperation between retraction mechanism 200 and rotation mechanism 300 ensures the synchronization accuracy of the composite motion while reducing the impact of individual components on the overall device, guaranteeing long-term stable operation under high-frequency continuous scanning conditions, thereby improving the clarity and stability of OCT imaging.

[0020] Furthermore, the sliding guide assembly 130 includes a guide rail 131 and a guide slider 132; the guide rail 131 is disposed on one of the support plate 110 and the platform portion 121 and extends in the A direction, and the guide slider 132 is disposed on the other, and the guide slider 132 slides in cooperation with the groove on the guide rail 131.

[0021] Alternatively, multiple sets of sliding guide assemblies 130 can be spaced apart between the support plate 110 and the platform section 121. These multiple sets of sliding guide assemblies 130 cooperate to prevent relative misalignment or tilting between the support plate 110 and the platform section 121 during the movement of the entire rotating mechanism 300 along direction A, driven by the retracting output shaft 210. This further enhances relative motion stability and ensures the stability of the rotating mechanism 300's movement along direction A.

[0022] Furthermore, the retraction output shaft 210 is connected to the raised ring portion 122 via a transmission connector 221. The transmission connector 221 can be a lead screw and nut. The retraction output shaft 210 has a lead screw portion, and the rotation of the retraction output shaft 210 drives the transmission connector 221 and the raised ring portion 122 to move linearly. To maintain the stability of the retraction motion, the transmission connector 221 can be fixedly connected to the raised ring portion 122 via a first vibration isolator 222. Optionally, the linear displacement of the retraction output shaft 210 can also drive the linear movement of the transmission connector 221 and the raised ring portion 122.

[0023] See Figure 1-2 The retraction mechanism 200 includes a retraction motor 230 and a first mounting base 240. The first mounting base 240 is fixedly mounted on the support plate 110, and the retraction motor 230 is mounted on the first mounting base 240. The motor shaft of the retraction motor 230 serves as the retraction output shaft 210. Preferably, the retraction motor 230 is fixed to the first mounting base 240 by the second vibration isolator 250.

[0024] Furthermore, it also has a control panel 260. The control panel 260 is mounted on one side of the support plate 110 via a mounting strip 270. The control panel 260 is communicatively connected to the retraction mechanism 200 and the rotation mechanism 300 to realize their rotation and retraction control functions.

[0025] See Figure 1 The mounting strip 270 extends along direction B, is long and strip-shaped, and is perpendicular to the support plate 110. There is a mounting strip 270 on each side of the support plate 110, and a control plate 260 is fixedly mounted on the mounting strip 270.

[0026] Optionally, the control panel 260 is also provided with a slot extending along direction A, and a limit switch 280 is provided on one or both sides of the slot. The raised ring 122 also has a limiting protrusion on one side, which cooperates with the slot, extends into the slot, and moves within the slot along direction A. The limit switch 280 can detect the movement of the limiting protrusion, thereby limiting the travel displacement.

[0027] See Figure 3 The first rotating component 310 and the second rotating component 320 are arranged side by side on the support plate 110. The rotational displacement between the first rotating component 310 and the second rotating component 320 is transmitted through the transmission belt 323.

[0028] See Figure 4 The first rotating assembly 310 includes a mounting plate 304, a second mounting base 313 disposed on the mounting plate 304, two bearing connecting plates 303, and a rotary motor 312. The rotary motor 312 is fixedly disposed on the second mounting base 313, and a first bearing 301 and a second bearing 302 are respectively disposed on the two bearing connecting plates 303. Optionally, the rotating output shaft 311 is driven by the first bearing 301 and the second bearing 302 and is mounted on the mounting plate 304, with a first pulley 317 circumferentially fixed thereon. In a preferred embodiment, the motor shaft of the rotary motor 312 serves as the rotary output shaft 311. The auxiliary transmission rod 316 is mounted on two bearing connecting plates 303 via first bearings 301 and second bearings 302 at both ends, and a first pulley 317 is fixedly mounted on its outer periphery. The rotary output shaft 311 is fixedly connected to the auxiliary transmission rod 316 via a coupling 315. The rotary motor 312 drives the rotary output shaft 311 and the auxiliary transmission rod 316 to rotate, thereby driving the transmission belt 323 to move via the first pulley 317. The fixed bearings at both ends ensure stable and reliable transmission of rotation for either the rotary output shaft 311 or the auxiliary transmission rod 316, effectively reducing radial runout.

[0029] Preferably, the rotary motor 312 is fixedly mounted on the second mounting base 313 via a third vibration isolator 314.

[0030] See Figure 3 The second rotating assembly 320 includes a second pulley 322, a fixing member 324, and a rotating connector 325. The fixing member 324 is fixedly disposed on the platform portion 121, and the rotating connector 325 is fixedly disposed on the fixing member 324. The rotating connector 325 is used to connect the OCT catheter 10. The rotating connector 325 has a rotatable second pulley 322, and the rotating connector 325 can drive the OCT catheter 10 to rotate via the second pulley 322.

[0031] When the rotary motor 312 starts, its motor shaft rotates, driving the first pulley 317 to rotate. The first pulley 317, through the transmission belt 323, drives the second pulley 322 to rotate, thereby driving the OCT conduit 10 connected to the rotary connector 325 to rotate, thus realizing the rotation of the OCT conduit 10. The transmission belt 323, in conjunction with the first pulley 317 and the second pulley 322, achieves synchronous rotation of the motor shaft of the rotary motor 312, the rotary connector 325, and the OCT conduit 10, improving motion accuracy. The multi-stage transmission via the motor shaft-coupling 315-first pulley 317 effectively reduces radial runout. Furthermore, since the rotary motor 312 is fixed to the platform portion 121 via the mounting plate 304, and the fixing member 324 is directly fixed to the platform portion 121, and multiple vibration isolation members further isolate the vibration of the rotary motor 312, the displacement and rotation accuracy of the OCT conduit 10 is effectively improved. In addition, by setting the fixing component 324, the installation strength and stability of the rotary connector 325 are improved, and the influence of external debris on the rotary connector 325 is reduced, thereby further improving the motion accuracy.

[0032] In this application, the belt drive between the first rotating component 310 and the second rotating component 320 can also be understood as a sprocket and chain drive, and the pulley can also be understood as a transmission sprocket.

[0033] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An OCT catheter rotation and retraction device, characterized in that, include: The support mechanism (100) includes a support plate (110), a mounting component (120), and a sliding guide assembly (130). The mounting component (120) includes a platform portion (121) and a raised ring portion (122) disposed on one side of the platform portion (121). The raised ring portion (122) and the platform portion (121) cooperate to form a space that allows the support plate (110) to pass through. The platform section (121) and the support plate (110) are arranged at a distance from each other, and the sliding guide assembly (130) is disposed between the platform section (121) and the support plate (110); A retraction mechanism (200) is disposed on the side of the support plate (110) away from the sliding guide assembly (130). The retraction output shaft (210) in the retraction mechanism (200) is connected to the protruding ring (122) and drives the protruding ring (122) to move relative to the support plate (110) along the A direction through the retraction output shaft (210). A rotating mechanism (300) is disposed on the side of the platform (121) away from the support plate (110). The rotating mechanism (300) includes a first rotating component (310) and a second rotating component (320). The second rotating component (320) can be used to connect the OCT catheter (10). The second rotating component (320) and the first rotating component (310) are connected by a transmission belt (323).

2. The OCT catheter rotation and retraction device according to claim 1, characterized in that, The sliding guide assembly (130) includes a guide rail (131) and a guide slider (132). The guide slide rail (131) is disposed on one of the support plate (110) and the platform part (121) and extends in the A direction. The guide slider (132) is disposed on the other and slides in cooperation with the groove on the guide slide rail (131).

3. The OCT catheter rotation and retraction device according to claim 2, characterized in that, Multiple sets of sliding guide components (130) are provided at intervals between the support plate (110) and the platform section (121).

4. The OCT catheter rotation and retraction device according to claim 1, characterized in that, The retraction output shaft (210) is connected to the protruding ring (122) via a transmission connector (221), and the transmission connector (221) is fixedly connected to the protruding ring (122) via a first vibration isolator (222).

5. The OCT catheter rotation and retraction device according to claim 1, characterized in that, The retraction mechanism (200) includes a retraction motor (230), a first mounting base (240), and a second vibration isolator (250). The first mounting base (240) is fixedly mounted on the support plate (110). The retraction motor (230) is mounted on the first mounting base (240). The second vibration isolator (250) fixes the retraction motor (230) to the first mounting base (240). The motor shaft of the retraction motor (230) serves as the retraction output shaft (210).

6. The OCT catheter rotation and retraction device according to claim 1, characterized in that, It also has a control plate (260) and a mounting strip (270), the control plate (260) being disposed on one side of the support plate (110) via the mounting strip (270) and being communicatively connected to the retraction mechanism (200) and the rotation mechanism (300).

7. The OCT catheter rotation and retraction device according to claim 6, characterized in that, The control panel (260) is provided with a slot, and a limit switch (280) is provided on one or both sides of the slot along direction A.

8. The OCT catheter rotation and retraction device according to claim 7, characterized in that, The raised ring (122) also has a limiting protrusion on one side, which cooperates with the slot and moves in the slot along direction A.

9. The OCT catheter rotation and retraction device according to claim 1, characterized in that, The first rotating assembly (310) includes a mounting plate (304), a second mounting base (313) disposed on the mounting plate (304), two bearing connecting plates (303), and a rotating motor (312). The rotating motor (312) is fixedly disposed on the second mounting base (313). The two bearing connecting plates (303) are respectively provided with a first bearing (301) and a second bearing (302). The motor shaft of the rotating motor (312) is connected to an auxiliary transmission rod (316) through a coupling (315) to drive the transmission belt (323). The two ends of the auxiliary transmission rod (316) are respectively connected to the two bearing connecting plates (303) through the first bearing (301) and the second bearing (302).

10. The OCT catheter rotation and retraction device according to claim 9, characterized in that, The second rotating assembly (320) includes a second pulley (322), a fixing member (324), and a rotating connector (325); wherein the fixing member (324) is fixedly disposed on the platform part (121), the rotating connector (325) is fixedly disposed on the fixing member (324), and the rotating connector (325) is used to connect the OCT catheter (10) and drive the OCT catheter (10) to rotate through the transmission belt (323).

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