CN216652441U

CN216652441U - Laser coupling device

Info

Publication number: CN216652441U
Application number: CN202122985057.XU
Authority: CN
Inventors: 朱锐; 党磊; 闫宝运
Original assignee: SHENZHEN VIVOLIGHT MEDICAL DEVICE & TECHNOLOGY CO LTD
Current assignee: Shenzhen Zhongke Rongguang Medical Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-03
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a laser coupling device which comprises a coupling module and an optical fiber conduit joint, wherein the coupling module is provided with a coupling socket for the optical fiber conduit joint to be inserted, the surface of the optical fiber conduit joint, which is inserted with the coupling module, is provided with a groove, and the coupling module is provided with an elastic mechanism which is elastically abutted to the groove at the coupling socket. According to the laser coupling device provided by the utility model, the groove is formed in the surface of the optical fiber conduit connector, which is spliced with the coupling module, and the elastic mechanism is arranged at the coupling socket of the coupling module and elastically abuts against the groove, so that the elastic connection between the optical fiber conduit connector and the coupling module is realized, and the elastic connection can lock the conduit connector and the coupling module, so that the optical fiber conduit connector can stably transmit high-energy laser after being inserted into the coupling module, and the splicing part can not be loosened due to vibration or conduit body movement.

Description

Laser coupling device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a laser coupling device.

Background

Laser ablation is catheter ablation using laser as an energy source, wherein the laser is an intense beam of photons generated by electromagnetic laser radiation and has monochromaticity, coherence and directionality. At present, the application of laser ablation in clinical practice is more and more extensive, for example, the laser ablation is currently used for treating intravascular blockage, intracavity stenosis and the like in the market. In the laser ablation system, laser needs to be transmitted to a vascular disease position through a fiber optic catheter, and therefore the fiber optic catheter needs to be connected with a laser ablation device. However, after the fiber optic catheter connector of the conventional laser ablation device is inserted into the coupling socket, the socket part is loosened due to vibration or movement of the catheter body, and high-energy laser cannot be stably transmitted.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to provide a laser coupling device to solve the technical problem that high-energy laser cannot be stably transmitted due to the fact that a socket part of an optical fiber conduit joint and a coupling socket is easy to loosen in the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that: the laser coupling device comprises a coupling module and an optical fiber conduit connector, wherein the coupling module is provided with a coupling socket for the optical fiber conduit connector to be inserted, a groove is formed in the surface of the optical fiber conduit connector inserted with the coupling module, and the coupling module is provided with an elastic mechanism for elastically abutting against the groove at the position of the coupling socket.

Optionally, the coupling module includes a coupling base and a joint gland covering the coupling base, the coupling base and the joint gland enclose to form the coupling socket, the elastic mechanism is arranged on the joint gland, and the surface of the optical fiber conduit joint facing the joint gland is provided with the groove.

Optionally, a through hole communicated with the coupling socket is formed in the joint press cover in a penetrating mode along the thickness direction of the joint press cover, the elastic mechanism is installed in the through hole, and one end, close to the coupling socket, of the elastic mechanism is used for being elastically abutted to the groove.

Optionally, the elastic mechanism includes a main body shaft cooperatively connected with the through hole and having an opening at one end, an elastic member disposed in the opening along an axial direction of the main body shaft, and a pressing member disposed at the opening of the opening, the pressing member is configured to push against the elastic member and retract into the opening under an external force, and the pressing member is further configured to pop out of the opening under an elastic force of the elastic member.

Optionally, the pressing member includes a horizontal portion and a vertical portion vertically connected to the horizontal portion, the horizontal portion abuts against the elastic member and can slide in the opening along an axial direction of the main body shaft, the vertical portion is matched with the opening of the opening, and an end of the vertical portion away from the horizontal portion is used for elastically abutting against the groove.

Optionally, the pressing piece is a ball head, and the opening diameter of the opening hole is smaller than the diameter of the pressing piece.

Optionally, the body shaft is threaded into the through-hole.

Optionally, one end of the main shaft, which is far away from the opening, is provided with a wrench plugging position.

Optionally, the optical fiber conduit joint includes the optic fibre splint and the pipe casing of mutual lock, the pipe casing dorsad the recess has been seted up on the surface of one side of optic fibre splint, the cross-street face of optic fibre splint and pipe casing all is rectangle, the cross section of coupling socket with the cross section matching of optic fibre splint and pipe casing.

Optionally, the coupling base is an integral coupling base, the coupling module further includes a cage-type optical system, and a light-emitting end of the cage-type optical system is plugged into the coupling base.

The laser coupling device provided by the utility model has the beneficial effects that: compared with the prior art, the laser coupling device has the advantages that the groove is formed in the surface, inserted into the coupling module, of the optical fiber conduit connector, the elastic mechanism is arranged at the coupling socket of the coupling module and elastically abuts against the groove, so that the optical fiber conduit connector is elastically connected with the coupling module, the elastic connection can lock the conduit connector and the coupling module, the optical fiber conduit connector can stably transmit high-energy laser after being inserted into the coupling module, and the inserted part cannot be loosened due to vibration or movement of a conduit body.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a laser coupling device according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a fiber optic conduit coupling according to an embodiment of the present invention;

FIG. 3 is a first cross-sectional view of the fiber optic conduit connector and the coupling module after being plugged together according to the embodiment of the present invention;

fig. 4 is a second cross-sectional view of the optical fiber conduit connector and the coupling module provided in the embodiment of the present invention after being plugged;

FIG. 5 is a cross-sectional view of a spring mechanism provided in accordance with an embodiment of the present invention;

fig. 6 is a schematic diagram of a coupling optical path of the coupling module according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10. a coupling module; 11. a coupling base; 12. a joint gland; 13. an elastic mechanism; 131. a main body shaft; 132. an elastic member; 133. a pressing member; 134. a wrench inserting position; 14. a cage optical system; 141. a laser light outlet; 142. a first reflector; 143. a first lens; 144. a second lens; 145. a second reflector; 146. a third lens; 147. a fourth lens; 148. an optical fiber; 20. a fiber optic conduit joint; 201. a groove; 21. an optical fiber clamping plate; 22. a conduit housing.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 4, a laser coupling device according to an embodiment of the present invention will be described. The laser coupling device comprises a coupling module 10 and a fiber guide tube joint 20. The coupling module 10 is provided with a coupling socket for the optical fiber conduit connector 20 to be inserted, a groove 201 is formed in the surface of the optical fiber conduit connector 20 inserted with the coupling module 10, the coupling module 10 is provided with an elastic mechanism 13 at the coupling socket, and after the optical fiber conduit connector 20 is inserted into the coupling socket, the elastic mechanism 13 is elastically abutted against the groove 201, so as to lock the position of the optical fiber conduit connector 20. In this embodiment, the portion of the fiber optic conduit connector 20 inserted into the coupling module 10 matches the shape of the coupling socket, e.g., the shape of the portion of the fiber optic conduit connector 20 inserted into the coupling module 10 matches the shape of the coupling socket.

Compared with the prior art, the laser coupling device provided by the utility model has the advantages that the groove 201 is formed in the surface, inserted into the coupling module 10, of the optical fiber conduit connector 20, the elastic mechanism 13 is arranged at the coupling socket of the coupling module 10, the elastic mechanism 13 is elastically abutted against the groove 201, the elastic connection between the optical fiber conduit connector 20 and the coupling module 10 is realized, the elastic connection can lock the conduit connector and the coupling module 10, the optical fiber conduit connector 20 can stably transmit high-energy laser after being inserted into the coupling module 10, and the inserted part cannot be loosened due to vibration or conduit body movement.

In one embodiment of the present invention, referring to fig. 1, 3 and 4, the coupling module 10 includes a coupling base 11 and a terminal cover 12. The connector gland 12 is covered on the coupling base 11, the connector gland 12 and the coupling base 11 enclose to form the coupling socket, the elastic mechanism 13 is arranged on the connector gland 12, and the groove 201 is formed on the surface of the optical fiber conduit connector 20 facing the connector gland 12. In the present embodiment, an elastic mechanism 13 is provided on the joint cover 12 to facilitate installation and adjustment of the elastic mechanism 13.

It will be appreciated that in other embodiments, the resilient means 13 may also be provided on the coupling base 11, and accordingly, a groove 201 may be provided on the surface of the fiber-optic conduit connector 20 facing the coupling base 11.

In a specific application, the coupling socket may be formed by forming a part on the coupling base 11 and forming another part on the joint cover 12, and the joint cover 12 and the coupling base 11 are closed to form the coupling socket; the coupling socket may be formed entirely on the coupling base 11, in which case a groove with the same shape as the coupling socket is formed on the coupling base 11, and when the joint cover 12 is fastened with the coupling base 11, the joint cover 12 is fastened at the opening of the groove and encloses with the coupling base 11 to form the coupling socket; the coupling socket may be formed entirely on the joint cover 12, in which case a groove having the same shape as the coupling socket is formed on the joint cover 12, and when the joint cover 12 is fastened to the coupling base 11, the coupling base 11 abuts against an opening of the groove and encloses the joint cover 12 to form the coupling socket.

In one embodiment of the present invention, referring to fig. 1, 3 and 4, the elastic mechanism 13 is mounted on the joint cover 12. A through hole is arranged on the connector gland 12 along the thickness direction thereof in a penetrating manner, the through hole is communicated with the coupling socket, the elastic mechanism 13 is arranged in the through hole, after the optical fiber conduit connector 20 is inserted into the coupling socket, one end of the elastic mechanism 13 close to the coupling socket is elastically abutted against the groove 201, and then the optical fiber conduit connector 20 and the coupling module 10 are locked.

Optionally, the elastic mechanism 13 is detachably connected to the through hole to facilitate replacement or adjustment of the elastic mechanism 13.

It will be appreciated that when the optical fibre catheter adapter 20 is inserted into the coupling socket, the through-hole is located just above the recess 201 so that the resilient means 13 resiliently abuts within the recess 201.

In an embodiment of the present invention, referring to fig. 3 to 5, the elastic mechanism 13 includes a main shaft 131, an elastic member 132 and a pressing member 133. The main shaft 131 is coupled to the through hole, and one end of the main shaft has an opening, the elastic member 132 is disposed in the opening along an axial direction of the main shaft 131, that is, an elastic direction of the elastic member 132 is parallel to the axial direction of the main shaft 131, the pressing member 133 is disposed at the opening of the opening, the pressing member 133 is used for pressing and pushing the elastic member 132 and retracting the opening under an external force, and the elastic member 132 is also used for popping out the opening under an elastic force of the elastic member 132. In the present embodiment, the main shaft 131, the elastic element 132 and the pressing element 133 are coaxially disposed, and the elastic element 132 is in a compressed state.

Alternatively, the elastic member 132 is a compression spring or a rubber member having elasticity.

Alternatively, the groove 201 is not limited to a V-groove, a square groove, or the like.

In a specific application, when the fiber conduit ferrule 20 is not inserted into the coupling socket, the pressing member 133 partially exposes the opening of the opening under the action of the elastic member 132, and the pressing member 133 also partially exposes the mating surfaces of the ferrule holder 12 and the fiber conduit ferrule 20; when the optical fiber conduit connector 20 is inserted into the coupling socket, the surface of the optical fiber conduit connector 20 with the groove 201 presses the pressing member 133 into the through hole of the connector gland 12 and retracts into the open hole until the optical fiber conduit connector 20 is inserted in place, at this time, the groove 201 arranged on the surface of the optical fiber conduit connector 20 is just positioned under the pressing member 133, the pressing member 133 is ejected out of the open hole under the action of the elastic member 132 and is tightly matched with the groove 201, so that the position of the optical fiber conduit connector 20 is fixed, and the optical fiber conduit connector 20 is in a stable relative position under the non-manual action, such as vibration, conduit body movement and the like, so that the relative position accuracy of the optical fiber conduit connector 20 and the coupling socket is ensured, and the optical fiber conduit connector 20 has good structural matching stability and meanwhile, the plugging hand feeling is smooth.

In one embodiment of the present invention, referring to fig. 5, the pressing member 133 includes a horizontal portion and a vertical portion. The vertical portion is vertically connected with the horizontal portion, the horizontal portion is abutted against the elastic member 132 in the opening and can slide along the axial direction of the main body shaft 131 in the opening so as to further abut against and push the elastic member 132, the vertical portion is matched with the opening of the opening, and one end of the vertical portion, which is far away from the horizontal portion, is elastically abutted against the groove 201. In the present embodiment, the section of the pressing member 133 in the axial direction of the main body shaft 131 is T-shaped.

In a specific application, the opening of the opening is tapered, the horizontal portion cannot enter the tapered portion of the opening, the pressing member 133 can be prevented from being separated from the opening, and the vertical portion is rod-shaped and adapted to the opening, so that the vertical portion can be retracted into or ejected out of the opening.

Alternatively, the horizontal portion and the vertical portion are integrally formed, for example, the horizontal portion and the vertical portion are integrally formed by using the same material.

In another embodiment of the present invention, the pressing element 133 is a ball, that is, the pressing element 133 is a ball, and one side of the ball abuts against one end of the elastic element 132. In this embodiment, the opening of the hole is circular and has a diameter smaller than that of the pressing member 133, so that the ball can be partially ejected out of the hole or fully retracted into the hole, and the ball cannot be separated from the hole.

It is understood that in other embodiments, the pressing member 133 may have other shapes, and it is only necessary that it is engaged with the opening of the opening, so that the pressing member 133 can be partially ejected from the opening or fully retracted into the opening.

In one embodiment of the present invention, referring to fig. 5, the main shaft 131 is detachably connected to the through hole. In this embodiment, the main shaft 131 is screwed into the through hole, and the relative position between the elastic mechanism 13 and the connector cover 12 is adjusted by screwing, so as to facilitate the assembly and disassembly of the elastic mechanism 13, and simultaneously adjust the locking force of the optical fiber conduit connector 20.

In a specific application, an internal thread is formed on the inner wall of the through hole, and correspondingly, an external thread is formed on the outer peripheral surface of the main body shaft 131, and the external thread is matched with the internal thread to form an adjusting thread pair, so that the main body shaft 131 is screwed in the through hole.

In an embodiment of the present invention, referring to fig. 5, in order to adjust the elastic mechanism 13, a wrench inserting position 134 is disposed at an end of the main shaft 131 away from the opening. When the connector is used, a wrench is inserted into the wrench insertion position 134, and the wrench is screwed, so that the main body shaft 131 changes the relative position relationship between the elastic mechanism 13 and the connector gland 12 under the constraint of the thread pair.

In one embodiment of the present invention, referring to fig. 2 to 4, the fiber optic conduit connector 20 includes a fiber optic clamp plate 21 and a conduit housing 22 that are engaged with each other. The optical fiber clamping plate 21 and the catheter housing 22 are fastened to each other along the length direction, and the surface of the catheter housing 22 on the side opposite to the optical fiber clamping plate 21 is provided with the groove 201. In the present embodiment, the cross-sections of the fiber clamping plate 21 and the catheter housing 22 are rectangular, and accordingly, the cross-section of the coupling socket matches the cross-sections of the fiber clamping plate 21 and the catheter housing 22, so that the insertion and extraction hand feeling of the fiber catheter adapter 20 is smooth.

In this embodiment, the optical fiber is fixed in the optical fiber groove at the center of the optical fiber clamping plate 21, the optical fiber position accuracy is ensured by controlling the tolerance of the coupling socket on the coupling base 11, the tolerance of the optical fiber groove on the optical fiber clamping plate 21, and the matching tolerance of the optical fiber clamping plate 21 and the coupling socket, and the smooth plugging and unplugging degree is ensured by the matching tolerance of the optical fiber clamping plate 21 and the coupling socket.

Optionally, the tolerance of the optical fiber clamping plate 21 and the coupling socket is H8/f 7.

In a specific application, a wrench is inserted into the wrench insertion position 134 of the main body shaft 131, the relative position between the spring mechanism and the connector gland 12 is adjusted by screwing in a screw pair, so that part of the pressing member 133 is exposed out of the matching surface between the connector gland 12 and the optical fiber clamping plate 21, when the optical fiber conduit connector 20 is inserted, the pressing member 133 is pressed into the connector gland 12 by the conduit housing 22 under the action of the elastic member 132 until the optical fiber conduit connector 20 is inserted in place, at this time, the groove 201 arranged on the conduit housing 22 is just under the elastic mechanism 13, the pressing member 133 is ejected out of the connector gland 12 under the action of the elastic member 132 to be tightly matched with the groove 201, the position of the optical fiber conduit connector 20 is fixed, and the optical fiber conduit connector 20 is ensured to be in a stable relative position under non-manual action, such as vibration, conduit body movement and the like, and the relative position between the elastic mechanism 13 and the connector gland 12 can be adjusted according to specific conditions, to adjust the locking force applied to the fiber optic conduit fitting 20.

It is understood that the fiber optic conduit coupling 20 of the present embodiment also includes other common components, which will not be described in detail herein.

In one embodiment of the present invention, referring to fig. 1, the coupling base 11 is an integral coupling base 11, and the coupling module 10 further includes a cage optical system 14, wherein an optical outlet of the cage optical system 14 is plugged into the coupling base 11. In this embodiment, coupling base 11 is provided as a unitary coupling base 11, which ensures the accuracy of the relative position of cage optics 14 and the interface of fiber optic catheter adapter 20.

In a specific application, please refer to fig. 6, which is a schematic diagram of a coupling optical path of the coupling module 10. The light emitted from the laser light outlet 141 is first bent by 90 ° in the horizontal direction by the first reflector 142, the bent light beam is then bent by 90 ° in the horizontal direction by the second reflector 145 after passing through the first lens 143 and the second lens 144, and the bent light beam is coupled into the optical fiber 148 after passing through the third lens 146 and the fourth lens 147. After the reflectors, lenses and corresponding mirror frames are assembled, cage type extension rods are used for connecting the reflectors, the lenses and the corresponding mirror frames to form a cage type optical system 14. Cage optical system 14 and fiber catheter connects 20 and fixes a position through integral coupling base 11 cooperation, and the light-emitting end of cage optical system 14 passes through cage four-bar grafting location with coupling base 11 and connects.

It is understood that in the present embodiment, the coupling module 10 further includes other common components, which are not described in detail herein.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A laser coupling device, characterized by: the optical fiber conduit connector comprises a coupling module and an optical fiber conduit connector, wherein the coupling module is provided with a coupling socket for the optical fiber conduit connector to be inserted, a groove is formed in the surface of the optical fiber conduit connector inserted with the coupling module, and an elastic mechanism used for elastically abutting against the coupling socket in the groove is arranged at the coupling socket of the coupling module.

2. The laser coupling device of claim 1, wherein: the coupling module comprises a coupling base and a joint gland arranged on the coupling base in a covering mode, the coupling base and the joint gland enclose to form the coupling socket, the elastic mechanism is arranged on the joint gland, and the surface, facing the joint gland, of the optical fiber conduit joint is provided with the groove.

3. The laser coupling device of claim 2, wherein: the joint gland is provided with a through hole communicated with the coupling socket in a penetrating manner along the thickness direction of the joint gland, the elastic mechanism is arranged in the through hole, and one end of the elastic mechanism, which is close to the coupling socket, is used for elastically abutting against the inside of the groove.

4. A laser coupling device as claimed in claim 3, wherein: the elastic mechanism comprises a main body shaft which is matched and connected with the through hole and provided with a hole at one end, an elastic piece which is arranged in the hole along the axial direction of the main body shaft, and a pressing piece which is arranged at the opening of the hole, wherein the pressing piece is used for pressing and pushing the elastic piece and retracting the elastic piece into the hole under the action of external force, and the pressing piece is also used for popping out the hole under the action of the elastic force of the elastic piece.

5. The laser coupling device of claim 4, wherein: the pressing part comprises a horizontal part and a vertical part vertically connected with the horizontal part, the horizontal part is abutted with the elastic part and can slide in the opening along the axial direction of the main body shaft, the vertical part is matched with the opening of the opening, and one end of the vertical part, which is far away from the horizontal part, is elastically abutted in the groove.

6. The laser coupling device of claim 4, wherein: the pressing piece is a ball head, and the diameter of the opening is smaller than that of the pressing piece.

7. The laser coupling device of claim 4, wherein: the main body shaft is in threaded connection with the through hole.

8. The laser coupling device according to claim 4, wherein: the main part axle is kept away from the one end of trompil is provided with the spanner and pegs graft the position.

9. A laser coupling device according to any of claims 1 to 8, wherein: the optical fiber conduit joint comprises an optical fiber clamping plate and a conduit shell which are mutually buckled, the conduit shell faces away from the surface of one side of the optical fiber clamping plate, the grooves are formed in the surface of one side of the conduit shell, the cross section of the optical fiber clamping plate and the cross section of the conduit shell are rectangular, and the cross section of the coupling socket is matched with the cross section of the optical fiber clamping plate and the cross section of the conduit shell.

10. A laser coupling device as claimed in any one of claims 2 to 8, wherein: the coupling base is an integral coupling base, the coupling module further comprises a cage-type optical system, and a light outlet end of the cage-type optical system is connected with the coupling base in an inserting mode.