CN220797365U - Photoelectric combined slip ring and IVUS-OCT imaging system - Google Patents
Photoelectric combined slip ring and IVUS-OCT imaging system Download PDFInfo
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- CN220797365U CN220797365U CN202320760438.4U CN202320760438U CN220797365U CN 220797365 U CN220797365 U CN 220797365U CN 202320760438 U CN202320760438 U CN 202320760438U CN 220797365 U CN220797365 U CN 220797365U
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- 238000003384 imaging method Methods 0.000 title claims abstract description 42
- 238000010168 coupling process Methods 0.000 claims abstract description 201
- 238000005859 coupling reaction Methods 0.000 claims abstract description 201
- 230000008878 coupling Effects 0.000 claims abstract description 200
- 230000003287 optical effect Effects 0.000 claims abstract description 150
- 230000005540 biological transmission Effects 0.000 claims abstract description 112
- 230000005693 optoelectronics Effects 0.000 claims abstract description 16
- 239000013307 optical fiber Substances 0.000 claims description 39
- 230000001360 synchronised effect Effects 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 5
- 238000012014 optical coherence tomography Methods 0.000 description 24
- 238000002608 intravascular ultrasound Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000012634 optical imaging Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 210000004351 coronary vessel Anatomy 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Abstract
The utility model discloses an optoelectronic combined slip ring and an IVUS-OCT imaging system, wherein the optoelectronic combined slip ring comprises an optical signal component, an electric signal component and a transmission main shaft, a rotor part of the optical signal component can rotate along with the transmission main shaft, the optical signal component is used for transmitting optical signals, the electric signal component comprises a stator electric coupling piece and a rotor electric coupling piece, the rotor electric coupling piece is arranged on the transmission main shaft, so that the rotor electric coupling piece can coaxially rotate along with the transmission main shaft, and the stator electric coupling piece and the rotor electric coupling piece are oppositely arranged along the axis of the transmission main shaft, so that electric signals can be transmitted between the stator electric coupling piece and the rotor electric coupling piece. The stator electric coupling piece and the rotor electric coupling piece in the photoelectric combined slip ring are coupled along the axial direction of the transmission main shaft, so that the radial size of the photoelectric combined slip ring can be reduced, and the product miniaturization is facilitated.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a photoelectric combined slip ring.
The utility model also relates to an IVUS-OCT imaging system.
Background
Intravascular ultrasound (intravascular ultrasound, IVUS)) and optical coherence tomography (optical coherence tomography, OCT) are increasingly showing their superiority and have been developed and improved in the field of coronary intervention as intravascular imaging detection techniques.
Intravascular ultrasound (IVUS) has a resolution of 100 μm, has high tissue penetration, and is capable of assessing the entire structure of the coronary artery, including the external elastic membrane, while Optical Coherence Tomography (OCT) has a higher resolution of 10-20 μm, is capable of assessing the luminal structure with limited tissue penetration, each of which is long in coronary interventions, with complementary effects, thus integrating the IVUS and OCT imaging catheter into the same imaging catheter, both working cooperatively, enabling a more comprehensive description of the coronary artery by virtue of their inherent advantages and limitations.
In the IVUS-OCT imaging system, an optical path of optical imaging of the front end and a circuit line of ultrasonic imaging are made into the same catheter to be connected with a main control system, however, the radial size of the existing photoelectric combined slip ring is still larger, which is not beneficial to miniaturization of products.
Disclosure of Invention
The utility model aims to provide an optoelectronic combined slip ring which is applied to an IVUS-OCT imaging system, can reduce the radial size and is beneficial to miniaturization of products. The utility model also provides an IVUS-OCT imaging system.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
an optoelectronic combined slip ring is applied to an IVUS-OCT imaging system and comprises an optical signal component, an electrical signal component and a transmission main shaft, wherein a rotor part of the optical signal component can rotate along with the transmission main shaft, and the optical signal component is used for transmitting optical signals;
the electric signal assembly comprises a stator electric coupling piece and a rotor electric coupling piece, wherein the rotor electric coupling piece is arranged on the transmission main shaft, so that the rotor electric coupling piece can coaxially rotate along with the transmission main shaft, and the stator electric coupling piece and the rotor electric coupling piece are oppositely arranged along the axis of the transmission main shaft, so that electric signals can be transmitted between the stator electric coupling piece and the rotor electric coupling piece.
Optionally, the rotor electric coupling is disposed on an outer side surface of the transmission main shaft, and the rotor portion of the optical signal assembly includes a rotor optical coupling disposed in a hollow cavity of the transmission main shaft.
Optionally, the stator electric coupling comprises a stator magnetic component coaxial with the transmission main shaft, and the rotor electric coupling comprises a rotor magnetic component coaxial with the transmission main shaft, wherein the stator magnetic component and the rotor magnetic component can respectively generate a magnetic field and induce a magnetic field to output an electric signal when the electric signal is input.
Optionally, the stator electric coupling comprises a stator core coaxial with the drive spindle, on which stator core coils are wound around the stator core axis, and the rotor electric coupling comprises a rotor core coaxial with the drive spindle, on which rotor core coils are wound around the rotor core axis.
Optionally, the electric signal assembly further comprises an electric connector connected with the transmission main shaft and rotating coaxially and synchronously with the transmission main shaft, and an electric transmission line led out by the rotor electric coupling is connected with the electric connector.
Optionally, the optical signal assembly includes a stator optical coupling member and a rotor optical coupling member, and the rotor optical coupling member is disposed on the transmission main shaft, so that the rotor optical coupling member can coaxially rotate along with the transmission main shaft, and the stator optical coupling member and the rotor optical coupling member are disposed opposite along an axis of the transmission main shaft, so that an optical signal can be transmitted between the stator optical coupling member and the rotor optical coupling member.
Optionally, the optical signal assembly further comprises an optical connection assembly, the optical connection assembly is connected with the transmission main shaft and rotates coaxially and synchronously with the transmission main shaft, and an optical transmission line led out by the rotor optical coupling member is connected with the optical connection assembly.
Optionally, the optical connection assembly includes an optical fiber connector and an optical fiber female socket, the optical transmission line is connected with the optical fiber connector, and the optical fiber connector is connected with the optical fiber female socket.
Optionally, the electric signal assembly further comprises an electric connecting piece, the electric connecting piece is connected with a synchronous pulley through a coupler, and the transmission main shaft is connected with the synchronous pulley so as to drive the transmission main shaft and the electric connecting piece to synchronously rotate through the synchronous pulley;
the optical signal assembly comprises an optical connection assembly, the optical connection assembly is connected with the synchronous pulley through a coupler, and the transmission main shaft is connected with the synchronous pulley so that the synchronous pulley drives the transmission main shaft to synchronously rotate.
Optionally, the device further comprises a shell, wherein the transmission main shaft, the electric signal component and the optical signal component are all arranged in the shell, and the transmission main shaft is connected with the shell through a bearing.
An IVUS-OCT imaging system, comprising:
the host is provided with a light source and an electric signal generating device;
an imaging catheter;
the photoelectric combined slip ring of any one of the above claims, which is used for respectively transmitting the emergent light of the light source and the electric signal output by the electric signal generating device to the imaging catheter, and transmitting the optical signal and the electric signal returned by the imaging catheter to the host.
The technical proposal can show that the photoelectric combined slip ring provided by the utility model is applied to an IVUS-OCT imaging system, the optical signal assembly comprises an optical signal assembly, an electric signal assembly and a transmission main shaft, wherein a rotor part of the optical signal assembly can rotate along with the transmission main shaft, and the optical signal assembly is used for transmitting optical signals. The electric signal component comprises a stator electric coupling piece and a rotor electric coupling piece, wherein the rotor electric coupling piece is arranged on the transmission main shaft, the rotor electric coupling piece can coaxially rotate along with the transmission main shaft, and the stator electric coupling piece and the rotor electric coupling piece are oppositely arranged along the axis of the transmission main shaft, so that electric signals can be transmitted between the stator electric coupling piece and the rotor electric coupling piece.
According to the photoelectric combined slip ring, the stator electric coupling piece and the rotor electric coupling piece which are used for transmitting electric signals are coupled along the axial direction of the transmission main shaft, so that the radial coupling of the stator electric coupling piece and the rotor electric coupling piece is avoided, and compared with the radial size of the photoelectric combined slip ring, the radial size of the photoelectric combined slip ring is reduced, and the product miniaturization is facilitated.
The IVUS-OCT imaging system provided by the utility model can achieve the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a part of an inner structure of a photoelectric combined slip ring according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the external structure of the photoelectric composite slip ring shown in FIG. 1;
FIG. 3 is an axial cross-sectional view of a rotor electrical coupling and a stator electrical coupling according to an embodiment of the utility model;
FIG. 4 shows the photoelectric combined slip ring shown in FIG. 1 a schematic structural diagram of the medium electric signal component;
fig. 5 is a schematic structural diagram of an optical signal assembly in the photoelectric combined slip ring shown in fig. 1.
Reference numerals in the drawings of the specification include:
11-stator electrical couplings, 12-rotor electrical couplings, 13-first electrical transmission lines, 14-second electrical transmission lines, 15-electrical connectors, 110-stator cores, 111-first coils, 120-rotor cores, 121-second coils;
the optical fiber coupler comprises a 21-stator optical coupler, a 22-rotor optical coupler, a 23-first optical fiber connector, a 24-second optical fiber connector, a 25-optical fiber female seat and a 26-optical transmission line;
30-transmission main shaft, 31-synchronous pulley, 32-coupling, 33-first bearing, 34-second bearing, 35-casing.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
Currently in IVUS-OCT imaging systems, the optical path of the optical imaging of the front end and the circuit line of the ultrasonic imaging are made into the same catheter to connect with the main control system by using an optoelectronic combined slip ring. However, the radial dimension of the existing photoelectric combined slip ring is still larger, for example, some existing photoelectric combined slip rings adopt a structure of optical signal space coupling and electric signal brush contact coupling or a structure of optical signal space coupling and electric signal coil contactless coupling, wherein the optical slip ring and the electric slip ring are coaxially arranged, the electric slip ring is positioned at the outer side of the smooth ring, and the electric slip ring is radially coupled. The photoelectric combined slip rings are all radially coupled by the electric slip rings, so that the radial space of the photoelectric combined slip rings is limited, the radial size of the photoelectric combined slip rings cannot be further reduced, and the product miniaturization is not facilitated.
In view of this, the present utility model provides an optoelectronic combined slip ring and an IVUS-OCT imaging system, in which a stator electrical coupling member and a rotor electrical coupling member (both of which constitute the electrical slip ring) for transmitting electrical signals are coupled along the axial direction of a transmission main shaft, and the stator electrical coupling member and the rotor electrical coupling member are prevented from being coupled along the radial direction, so that the radial dimension of the optoelectronic combined slip ring can be reduced, which is advantageous for miniaturization of products.
Specifically, the embodiment provides an optoelectronic combined slip ring, which is applied to an IVUS-OCT imaging system and comprises an optical signal component, an electrical signal component and a transmission main shaft, wherein a rotor part of the optical signal component can rotate along with the transmission main shaft, and the optical signal component is used for transmitting optical signals;
the electric signal assembly comprises a stator electric coupling piece and a rotor electric coupling piece, wherein the rotor electric coupling piece is arranged on the transmission main shaft, so that the rotor electric coupling piece can coaxially rotate along with the transmission main shaft, and the stator electric coupling piece and the rotor electric coupling piece are oppositely arranged along the axis of the transmission main shaft, so that electric signals can be transmitted between the stator electric coupling piece and the rotor electric coupling piece.
The stator electric coupling piece and the rotor electric coupling piece are oppositely arranged along the axis of the transmission main shaft, are coupled along the axial direction of the transmission main shaft, and can transmit electric signals.
In the photoelectric combined slip ring of the embodiment, the stator electric coupling piece and the rotor electric coupling piece for transmitting electric signals are coupled along the axial direction of the transmission main shaft, so that the radial coupling of the stator electric coupling piece and the rotor electric coupling piece is avoided, and compared with the radial dimension of the photoelectric combined slip ring, the radial dimension of the photoelectric combined slip ring is reduced, and the product miniaturization is facilitated.
In some embodiments, the rotor electrical coupling is disposed on an outer side of the drive shaft and is capable of coaxial rotation with the drive shaft, while the stator electrical coupling is stationary relative to the drive shaft and opposite the rotor electrical coupling along an axis of the drive shaft. The rotor portion of the optical signal assembly includes a rotor optical coupling that is positionable within the hollow cavity of the drive spindle and is capable of coaxial rotation with the drive spindle.
Optionally, the optical signal assembly may include a stator optical coupling member and a rotor optical coupling member, the rotor optical coupling member being disposed on the drive shaft such that the rotor optical coupling member is rotatable coaxially with the drive shaft, the stator optical coupling member and the rotor optical coupling member being disposed opposite along an axis of the drive shaft such that an optical signal can be transmitted between the stator optical coupling member and the rotor optical coupling member. The stator optical coupling piece and the rotor optical coupling piece are oppositely arranged along the axis of the transmission main shaft, and are coupled along the axial direction of the transmission main shaft, so that optical signals can be transmitted between the stator optical coupling piece and the rotor optical coupling piece. Therefore, in the photoelectric combined slip ring of the embodiment, not only the stator optical coupling piece and the rotor optical coupling piece (both of which form the optical slip ring) for transmitting optical signals are coupled along the axial direction of the transmission main shaft, but also the stator electric coupling piece and the rotor electric coupling piece (both of which form the electric slip ring) for transmitting electric signals are coupled along the axial direction of the transmission main shaft, so that the radial coupling of the stator optical coupling piece and the rotor optical coupling piece and the radial coupling of the stator electric coupling piece and the rotor electric coupling piece are avoided, and compared with the radial dimension of the photoelectric combined slip ring, the radial dimension of the photoelectric combined slip ring is reduced, and the product miniaturization is facilitated. Referring to fig. 1 and fig. 2 for exemplary purposes, fig. 1 is a schematic view of a part of an internal structure of an optoelectronic combined slip ring according to an embodiment, and fig. 2 is a schematic view of an external structure of the optoelectronic combined slip ring shown in fig. 1. As shown in fig. 1, the rotor electric coupling 12 is provided on the outer side of the transmission main shaft 30, the stator electrical coupling 11 and the rotor electrical coupling 12 are opposite along the axis of the drive shaft 30. The rotor optical coupling 22 is disposed within the hollow cavity of the drive shaft 30, with the stator optical coupling 21 and the rotor optical coupling 22 being opposed along the axis of the drive shaft 30.
The stator electrical coupling 11 and the rotor electrical coupling 12 are arranged opposite along the axis of the transmission shaft 30, which may be in contact, so that electrical signals can be transmitted between them, i.e. both achieve a contact-type electrical signal coupling. In the present embodiment of the present utility model, the specific form of the contact coupling used for the stator electric coupling 11 and the rotor electric coupling 12 is not limited. Alternatively, the stator electrical coupling 11 and the rotor electrical coupling 12 may be non-contacting, and electrical signals can be transmitted between the two, i.e. the two achieve non-contact electrical signal coupling. In some embodiments, the stator electrical coupling 11 and the rotor electrical coupling 12 are each capable of generating an electric field when an electric signal is input and of inducing an electric field to output an electric signal, thereby enabling transmission of an electric signal between the stator electrical coupling 11 and the rotor electrical coupling 12. For example, the stator electric coupling 11 and the rotor electric coupling 12 can adopt a capacitive coupling mode. In some embodiments, the stator electric coupling 11 and the rotor electric coupling 12 are respectively capable of generating a magnetic field and inducing a magnetic field when an electric signal is input to output the electric signal, thereby realizing transmission of the electric signal between the stator electric coupling 11 and the rotor electric coupling 12. For example, the stator electric coupling 11 and the rotor electric coupling 12 adopt an inductive coupling mode.
In some embodiments, the stator electrical coupling 11 comprises a stator magnetic component coaxial with the drive spindle 30, and the rotor electrical coupling 12 comprises a rotor magnetic component coaxial with the drive spindle 30, the stator magnetic component and the rotor magnetic component being capable of generating a magnetic field and inducing a magnetic field, respectively, upon input of an electrical signal to output the electrical signal. The stator magnetic component is coaxial with the transmission main shaft 30, the rotor magnetic component is coaxial with the transmission main shaft 30, and the stator magnetic component and the rotor magnetic component are opposite along the axis of the transmission main shaft 30, and can respectively generate a magnetic field and induce a magnetic field to output an electric signal when the electric signal is input, so that the electric signal is transmitted between the stator electric coupling 11 and the rotor electric coupling 12. In this embodiment, the stator electric coupling element 11 and the rotor electric coupling element 12 transmit electric signals by using a magnetic field, and the electric coupling element is a contactless electric signal coupling mode, and the contact point abrasion exists in the contact electric signal coupling mode, so that transmission data is lost due to uneven resistance at high rotation speed, and periodic maintenance is required.
In the present embodiment, the specific structures of the stator magnetic member and the rotor magnetic member are not limited, as long as the magnetic field can be generated when an electric signal is inputted and the magnetic field can be induced to output the electric signal to realize electric signal coupling transmission. Alternatively in some embodiments, the stator electrical coupling comprises a stator core coaxial with the drive spindle 30 on which coils are wound around the axis of the stator core, and the rotor electrical coupling comprises a rotor core coaxial with the drive spindle 30 on which coils are wound around the axis of the rotor core. Referring to fig. 3 for illustrative purposes, fig. 3 is an axial cross-sectional view of an embodiment of a rotor electrical coupling and a stator electrical coupling, as shown, with a stator core 110 and a rotor core 120 disposed coaxially opposite one another, a first coil 111 wound around an axis on the stator core 110, and a second coil 121 wound around the axis on the rotor core 120. Referring to fig. 4, fig. 4 is a schematic structural diagram of an electrical signal assembly in the photoelectric composite slip ring shown in fig. 1, in which a coil on a stator core 110 is shown to extend to form a first electrical transmission line 13, and a coil on a rotor core 120 is shown to extend to form a second electrical transmission line 14.
In the present embodiment, the number of coils wound around the stator core 110 is not limited, the number of coils wound around the rotor core 120 is not limited, and in practical applications, the number of coils may be set according to the requirement of transmitting an electric signal, one coil may be wound around the stator core 110, one coil may be wound around the rotor core 120, or a plurality of coils may be wound around each of the coils in other examples, as shown in fig. 3. In addition, the coil wound on the stator core 110 or the coil wound on the rotor core 120 may be a wire or a flexible circuit board, and the conductors within the flexible circuit board play a role in conducting electricity in the embodiment using the flexible circuit board.
Further, the electrical signal assembly further comprises an electrical connection connected to the transmission spindle 30 and rotating coaxially and synchronously with the transmission spindle 30, with which electrical transmission lines led out by the rotor electrical coupling are connected. The electric transmission line led out by the rotor electric coupling piece is used for transmitting electric signals, so that the electric transmission line led out by the rotor electric coupling piece synchronously rotates along with the rotor electric coupling piece, and the line is prevented from winding. In the embodiment where the rotor electrical coupling employs a rotor core and wound coils, the coils on rotor core 120 may extend to form an electrical transmission line that connects with the electrical connection.
In the present embodiment, the connection manner between the electric connector and the transmission main shaft 30 is not limited. Alternatively, the electric connector may be connected to the synchronous pulley through a coupling, and the transmission main shaft 30 is connected to the synchronous pulley, so that the synchronous pulley drives the transmission main shaft 30 to rotate synchronously with the electric connector. Referring to fig. 1, the electrical connector 15 is fixedly connected to a coupler 32, the coupler 32 is fixedly connected to a synchronous pulley 31, and the synchronous pulley 31 is fixedly connected to a transmission main shaft 30. In the present embodiment, the structure of the electrical connector 15 is not limited, and the electrical connector 15 may be, but not limited to, a coaxial connector.
In the present embodiment, the types and structures of the stator optical coupling member 21 and the rotor optical coupling member 22 are not limited, as long as optical signals can be transmitted therebetween. The stator light coupling 21 may employ, but is not limited to, a stator collimator and the rotor light coupling 22 may employ, but is not limited to, a rotor collimator. The stator collimator or the rotor collimator may include, but is not limited to, a lenticular lens, a self-focusing lens, or an aspherical lens.
Preferably, the optical signal assembly further comprises an optical connection assembly connected to the transmission spindle 30 and to which an optical transmission line led out by the rotor optical coupler 22 is connected as the transmission spindle 30 rotates coaxially and synchronously. The optical transmission line is used for transmitting optical signals, and is connected with the optical transmission line led out by the rotor optical coupling piece 22 through the optical connection component, so that the optical transmission line led out by the rotor optical coupling piece synchronously rotates along with the rotor optical coupling piece, the line is prevented from winding, and the line is further connected with the imaging catheter through the optical connection component.
The optical transmission line may comprise an optical fiber. Alternatively, the optical connection assembly may include an optical fiber connector and an optical fiber female, the optical transmission line being connected to the optical fiber connector, and the optical fiber connector being connected to the optical fiber female. Referring to fig. 5, fig. 5 is a schematic structural diagram of an optical signal assembly in the photoelectric combined slip ring shown in fig. 1, where the stator optical coupling member 21 and the rotor optical coupling member 22 are opposite to each other, and the rotor optical coupling member 22 is connected to a second optical fiber connector 24 through an optical transmission line 26, and the second optical fiber connector 24 is connected to an optical fiber female socket 25. The optical transmission line led out from the stator optical coupler 21 is connected to the first optical fiber connector 23.
In this embodiment, the connection mode between the optical connection assembly and the transmission main shaft 30 is not limited, alternatively, the optical connection assembly may be connected to the synchronous pulley through a coupling, and the transmission main shaft 30 is connected to the synchronous pulley, so that the synchronous pulley drives the transmission main shaft 30 and the optical connection assembly to rotate synchronously. In embodiments where the optical connection assembly includes an optical fiber connector and an optical fiber female 25, the optical fiber female 25 is coupled to the coupling and the optical fiber connector is coupled to the optical fiber female 25. Referring to fig. 1 and 2, the optical fiber female holder 25 is fixedly connected to a coupling 32, the second optical fiber connector 24 is fixedly connected to the optical fiber female holder 25, the coupling 32 is fixedly connected to a synchronous pulley 31, and the synchronous pulley 31 is fixedly connected to the transmission main shaft 30. The fiber female 25 may be, but is not limited to, an SC/FC fiber female.
Alternatively, the second optical fiber connector 24 and the optical fiber female holder 25 may be screwed by a standard optical fiber connector, the electrical connector 15 and the optical fiber female holder 25 may be fixedly connected to the coupling 32 by means of screws, glue or welding, the coupling 32 may be fixed to the synchronous pulley 31 by means of screws, glue or welding, and the synchronous pulley 31 may be fixed to the transmission main shaft 30 by means of screws, glue or welding.
The photoelectric combined slip ring can further comprise a shell, wherein the transmission main shaft 30, the electric signal component and the optical signal component are arranged in the shell, specifically the transmission main shaft 30, the stator electric coupling piece 11, the rotor electric coupling piece 12, the stator optical coupling piece 21 and the rotor optical coupling piece 22 are arranged in the shell, and the transmission main shaft 30 is connected with the shell through bearings. The stator electric coupling piece 11 and the stator optical coupling piece 21 can be fixedly connected to the shell, and the transmission main shaft 30 is connected with the shell through a bearing, so that the rotor part can smoothly rotate under the condition that the stator part is fixed. Referring to fig. 1, the transmission main shaft 30 is coupled to a housing 35 by a first bearing 33 and a second bearing 34.
Alternatively, rotor core 120 may be bonded to drive shaft 30 and second coil 121 bonded to rotor core 120. The rotor light coupling 22 may be bonded to the drive shaft 30. Epoxy bonding may be used, but is not limited to.
The stator optical coupling piece and the rotor optical coupling piece in the photoelectric combined slip ring are axially coupled, and the stator electric coupling piece and the rotor electric coupling piece are axially coupled, so that the radial size of the photoelectric combined slip ring can be reduced, the radial space requirement is reduced, miniaturization of products is facilitated, electromagnetic non-contact coupling can be adopted for the electric slip ring, and the problem of transmission data loss caused by uneven contact wear resistance of contact points is avoided.
The present embodiment also provides an IVUS-OCT imaging system comprising:
the host is provided with a light source and an electric signal generating device;
an imaging catheter;
the photoelectric combined slip ring of any one of the above claims, which is used for respectively transmitting the emergent light of the light source and the electric signal output by the electric signal generating device to the imaging catheter, and transmitting the optical signal and the electric signal returned by the imaging catheter to the host.
According to the IVUS-OCT imaging system, the stator electric coupling piece and the rotor electric coupling piece in the photoelectric combined slip ring are axially coupled, so that the radial size of the photoelectric combined slip ring can be reduced, the radial space requirement is reduced, and the product miniaturization is facilitated.
The transmission process of optical signals and electrical signals in the IVUS-OCT imaging system of this embodiment can be combined with fig. 1 to 5 as follows:
optical signal transmission: the laser is emitted by the host computer, and the laser is emitted to the stator optical coupling piece 21 by the first optical fiber connector 23; the laser is collimated by the stator optical coupling piece 21 and then is incident to the rotor optical coupling piece 22 rotating at high speed, so that the space rotation-static optical signal coupling is realized; the rotor optical coupling 22 receives the laser light and transmits the laser light to the imaging catheter through the second optical fiber connector 24 and the optical fiber female base 25, and the imaging catheter returns the optical signal to the host through the original path after imaging in the blood vessel.
Electric signal transmission: transmitting an electric signal to the first electric transmission line 13 by the board card, wherein one end of the first electric transmission line 13 extends out and is wound in the stator magnetic core 110 in a ring shape; one end of the second electric transmission line 14 is wound in a ring shape in the rotor core 120; the second electrical transmission line 14 receives the electrical signal and transmits it through the coaxial connector to the imaging catheter, which, after intravascular imaging by the ultrasound transducer, returns the electrical signal back to the integrated circuit board via the primary path.
The IVUS-OCT imaging system of the embodiment integrates an optical imaging light path of OCT and an ultrasonic imaging line of the IVUS by adopting a photoelectric combined slip ring, can simultaneously transmit optical signals and electric signals to realize 3D scanning of the two signals, and can realize synchronous control or independent control.
The utility model provides an optoelectronic combined slip ring and an IVUS-OCT imaging system. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. An optoelectronic combined slip ring applied to an IVUS-OCT imaging system is characterized by comprising an optical signal component, an electrical signal component and a transmission main shaft, wherein a rotor part of the optical signal component can rotate along with the transmission main shaft, and the optical signal component is used for transmitting optical signals;
the electric signal assembly comprises a stator electric coupling piece and a rotor electric coupling piece, wherein the rotor electric coupling piece is arranged on the transmission main shaft, so that the rotor electric coupling piece can coaxially rotate along with the transmission main shaft, and the stator electric coupling piece and the rotor electric coupling piece are oppositely arranged along the axis of the transmission main shaft, so that electric signals can be transmitted between the stator electric coupling piece and the rotor electric coupling piece;
the electric signal assembly further comprises an electric connecting piece, the electric connecting piece is connected with the synchronous pulley through a coupler, and the transmission main shaft is connected with the synchronous pulley so that the synchronous pulley drives the transmission main shaft and the electric connecting piece to synchronously rotate; the optical signal assembly comprises an optical connection assembly, the optical connection assembly is connected with the synchronous pulley through a coupler, and the transmission main shaft is connected with the synchronous pulley so that the synchronous pulley drives the transmission main shaft to synchronously rotate.
2. The optoelectronic assembly slip ring of claim 1, wherein the rotor electrical coupling is disposed on an outer side of the drive shaft and the rotor portion of the optical signal assembly comprises a rotor optical coupling disposed within a hollow cavity of the drive shaft.
3. The optoelectric composite slip ring of claim 1, wherein the stator electrical coupling comprises a stator magnetic component coaxial with the drive shaft and the rotor electrical coupling comprises a rotor magnetic component coaxial with the drive shaft, the stator magnetic component and the rotor magnetic component each being capable of generating a magnetic field and inducing a magnetic field to output an electrical signal upon input of the electrical signal.
4. The optoelectronic assembly slip ring of claim 1, wherein the stator electrical coupling comprises a stator core coaxial with the drive shaft, on which is wound a coil about the stator core axis, and the rotor electrical coupling comprises a rotor core coaxial with the drive shaft, on which is wound a coil about the rotor core axis.
5. The optoelectric composite slip ring of claim 1, wherein the electrical signal assembly further comprises an electrical connector connected to the drive spindle and coaxially and synchronously rotating with the drive spindle, an electrical transmission line from the rotor electrical coupling being connected to the electrical connector.
6. The optoelectric composite slip ring of claim 1, wherein the optical signal assembly comprises a stator optical coupler and a rotor optical coupler, the rotor optical coupler disposed on the drive shaft such that the rotor optical coupler is coaxially rotatable with the drive shaft, the stator optical coupler and the rotor optical coupler disposed opposite one another along an axis of the drive shaft such that optical signals can be transmitted between the stator optical coupler and the rotor optical coupler.
7. The optoelectric composite slip ring of claim 6, wherein the optical signal assembly further comprises an optical connection assembly connected to the drive spindle and coaxially and synchronously rotating with the drive spindle, an optical transmission line from the rotor optical coupling being connected to the optical connection assembly.
8. The optoelectronic assembly slip ring of claim 7, wherein said optical connection assembly comprises an optical fiber connector and an optical fiber female housing, the optical transmission line is connected with the optical fiber connector, and the optical fiber connector is connected with the optical fiber female base.
9. The optoelectronic combination slip ring of any one of claims 1 to 8, further comprising a housing, wherein the drive spindle, the electrical signal assembly, and the optical signal assembly are disposed within the housing, and wherein the drive spindle is coupled to the housing via bearings.
10. An IVUS-OCT imaging system, comprising:
the host is provided with a light source and an electric signal generating device;
an imaging catheter;
the photoelectric composite slip ring according to any one of claims 1 to 9, for transmitting outgoing light of the light source and an electric signal output from the electric signal generating device to the imaging conduit, and transmitting an optical signal and an electric signal returned from the imaging conduit to the host, respectively.
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| CN202320760438.4U CN220797365U (en) | 2023-03-28 | 2023-03-28 | Photoelectric combined slip ring and IVUS-OCT imaging system |
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| CN202320760438.4U CN220797365U (en) | 2023-03-28 | 2023-03-28 | Photoelectric combined slip ring and IVUS-OCT imaging system |
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| CN220797365U true CN220797365U (en) | 2024-04-16 |
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