An ultrasonic diagnostic device and its IVUS probe connector

Abstract

The present application discloses an ultrasonic diagnostic device and its IVUS probe connector. The IVUS probe connector includes a first rotating member disposed on a controller and a first housing sleeved outside the first rotating member, as well as a second rotating member disposed on the probe and a second housing sleeved outside the rotating member. The first rotating member and the second rotating member are electrically connected, and the first housing and the second housing are detachably fixed. It further includes a clamping member disposed on the first rotating member. After the probe and the controller are assembled, the clamping member is clamped with the periphery of the second rotating member. The IVUS probe connector provided by the present application, through the setting of the clamping member, can effectively prevent the second rotating member from disengaging from the first rotating member, thereby keeping a certain gap between the second rotating member of the probe and the second housing 11, avoiding the generation of NURD, effectively prolonging the service time of the connector, reducing the consumption of PIM, and effectively reducing costs.

Description

Technical Field

[0001] The present application relates to the field of intravascular ultrasound echo imaging systems, and in particular to an IVUS probe connector. In addition, the present application also relates to an ultrasound diagnostic device comprising the IVUS probe connector. Background Art

[0002] In the intravascular ultrasound echo imaging system (IVUS) technology, there is a very important indicator, which is called NURD in the industry, namely Non-Uniform Rotation Distortion, nonlinear rotation image distortion, or uneven rotation deformation, etc. This is a proportional imbalance quantitative parameter distortion obtained by comparing the ultrasound echo imaging with the real image. This parameter determines whether the doctor's judgment on the size and shape of the lesion is accurate, as well as the choice of treatment plan to be taken later, and plays an important reference role.

[0003] In the IVUS design, at the joint between the catheter structure and the electrical part, there is a phenomenon of misalignment of the axis due to frequent plugging and unplugging and individual errors of different in-vivo catheters. The intravascular ultrasound echo imaging device is placed on the human body and has strict requirements on volume and weight. In order to reduce the volume, no bearings or sleeves can be set in the catheter. The rotating parts and stationary parts of the catheter assembly are in a natural gap state. Only after the catheter is inserted on the PIM or CCU rotating shaft, the connector inside the catheter assembly fixes the rotating parts and rotates with the PIM rotating shaft. In order to prevent cross infection, the catheter must be replaced once for each patient, and the joint part is precisely the place where the operation is most frequent and the life is the most fragile. After the electrical connector of the catheter part is plugged in, it can ensure the circumferential gap through precise structural design, but it cannot ensure the gap at the outlet end of the catheter, that is, the gap between the rotating part and the stationary part at the end away from the PIM rotating shaft. During operation, the rotating part and the stationary part will make irregular friction movements at the static-rotation gap of the catheter assembly. Most of the NURD phenomenon is caused in this way. Among them, PIM stands for Patient Interface Module, which means patient interface module; CCU stands for Catheter Control Unit, which means catheter control unit module.

[0004] The commonly used probes in the prior art increase the insertion length of the connector and the number of pins and sockets to ensure that the product image does not have or has less severe NURD. However, although the solutions in the prior art effectively extend the use time without NURD, as the use time increases or the number of patients examined in the hospital increases, the bite force of the connector will still weaken and NURD will occur. At this time, the expensive PIM rotating head still needs to be replaced, which is one of the reasons for the high cost of cardiovascular ultrasound.

[0005] Therefore, how to improve the use stability of the IVUS probe connector and reduce image distortion is a technical problem that those skilled in the art need to solve currently. Summary of the Invention

[0006] The purpose of this application is to provide an IVUS probe connector, which can effectively improve its own use reliability, reduce image distortion, have a long service life, and low cost. Another purpose of this application is to provide an ultrasonic diagnostic device including the above-mentioned IVUS probe connector.

[0007] To achieve the above purpose, this application provides the following technical solutions:

[0008] An IVUS probe connector includes a first rotating member disposed on the controller and a first outer shell sleeved outside the first rotating member, and a second rotating member disposed on the probe and a second outer shell sleeved outside the rotating member. The first rotating member and the second rotating member are electrically connected, the first outer shell and the second outer shell are detachably fixed, and a clamping member is further disposed on the first rotating member. After the probe and the controller are assembled, the clamping member is clamped with the circumference of the second rotating member.

[0009] Preferably, the clamping member is provided with a clamping boss, and the second rotating member is provided with a mounting groove, and the clamping boss can be clamped with the mounting groove.

[0010] Preferably, the clamping member is rod-shaped; the clamping boss is an arc-shaped boss, and / or the mounting groove is an arc-shaped groove; when the probe and the controller are assembled, the clamping member can be opened towards the radial outside of the second rotating member until the clamping boss is clamped into the mounting groove.

[0011] Preferably, the first rotating member is provided with a clamping groove for hinge-mounting the clamping member, and a rotating gap for the clamping member to rotate is provided between the clamping groove and the clamping member.

[0012] Preferably, a clamping fulcrum is provided between the clamping member and the clamping groove, and a torsion spring for pressing the clamping member against the second rotating member is installed on the clamping fulcrum.

[0013] Preferably, a locking assembly for locking the first outer shell and the second outer shell is further included.

[0014] Preferably, a limiting member is further provided on the inner circumference of the second outer shell. When the second outer shell is separated from the first outer shell, the limiting member can abut against the second rotating member to separate the second rotating member from the first rotating member.

[0015] Preferably, a spring pin assembly is provided on the first rotating member, an electrical contact is provided on the second rotating member, and the spring pin assembly can abut against the electrical contact.

[0016] Preferably, the spring pin assembly includes a needle body, a needle rear seat sleeve for supporting and guiding the needle body, and an elastic member installed inside the needle rear seat sleeve for electrically connecting the needle body and the needle rear seat sleeve; a circuit board for arranging the electrical contact is provided on the second rotating member; after the second rotating member is assembled with the controller assembly, the circuit board pushes the needle body to contract the elastic member.

[0017] The present application also provides an ultrasonic diagnostic device, including the IVUS probe connector described in any one of the above.

[0018] The IVUS probe connector provided by the present application includes a first rotating member provided on the controller and a first outer shell sleeved outside the first rotating member, and a second rotating member provided on the probe and a second outer shell sleeved outside the rotating member. The first rotating member and the second rotating member are electrically connected, and the first outer shell and the second outer shell are detachably fixed. A clamping member is also provided on the first rotating member. After the probe is assembled with the controller, the clamping member is clamped with the circumference of the second rotating member. The IVUS probe connector provided by the present application, after the controller and the probe are assembled, through the setting of the clamping member, can realize the clamping of the first rotating member and the second rotating member, can effectively prevent the second rotating member from detaching from the first rotating member, and further enables a certain gap to be maintained between the second rotating member of the probe and the second outer shell, avoiding the generation of NURD, effectively prolonging the service time of the connector, reducing the consumption of PIM, and effectively reducing costs.

[0019] The ultrasonic diagnostic device provided by the present application is provided with the above IVUS probe connector. Since the IVUS probe connector has the above technical effects, the ultrasonic diagnostic device provided with this IVUS probe connector should also have corresponding technical effects. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0021] Figure 1A schematic cross-sectional structure diagram of a specific embodiment of the IVUS probe connector provided by the present application;

[0022] Figure 2 A connection schematic diagram of the spring pin assembly and the circuit board in the IVUS probe connector provided by the present application;

[0023] Figure 3 A schematic cross-sectional structure diagram of another specific embodiment of the IVUS probe connector provided by the present application;

[0024] Wherein: release button (1), locking fulcrum (2), plug buckle (3), first housing (4), first rotating member (5), controller transmission member (6), spring pin assembly (7), needle seat sleeve (7-1), elastic member (7-2), needle connecting portion (7-3), needle body (7-4), circuit board (8), electrical contact (8-1), catheter transmission member (9), second rotating member (10), second housing (11), static rotation gap (12), catheter sheath (13), catheter assembly coaxial line (14), clamping member (15), clamping boss (15-1), mounting groove (16), torsion spring (17), rotation gap (18), clamping fulcrum (19), limiting member (20). Specific embodiment

[0025] The core of the present application is to provide an IVUS probe connector, which can significantly reduce the problem of NURD, has a long service life and low cost. Another core of the present application is to provide an ultrasonic diagnostic device including the above IVUS probe connector.

[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] Please refer to Figures 1 to 3 , Figure 1 A schematic cross-sectional structure diagram of a specific embodiment of the IVUS probe connector provided by the present application; Figure 2 A connection schematic diagram of the spring pin assembly and the circuit board in the IVUS probe connector provided by the present application; Figure 3 A schematic cross-sectional structure diagram of another specific embodiment of the IVUS probe connector provided by the present application.

[0028] In this embodiment, the probe includes a first rotating member 5 disposed on the controller and a first housing 4 sleeved outside the first rotating member 5, as well as a second rotating member 10 disposed on the probe and a second housing 11 sleeved outside the rotating member. The first rotating member 5 and the second rotating member 10 are electrically connected. The first housing 4 and the second housing 11 are detachably fixed, and there is a static rotation gap 12 between the second rotating member 10 and the second housing 11.

[0029] The probe further includes a clamping member 15 disposed on the first rotating member 5. After the probe is assembled with the controller, the clamping member 15 is clamped to the circumference of the second rotating member 10, so that the first rotating member 5 can drive the second rotating member 10 to rotate together, realizing the rotation control of the probe by the controller.

[0030] For the IVUS probe connector provided in this application, after the controller and the probe are assembled, through the setting of the clamping member 15, the clamping of the first rotating member 5 and the second rotating member 10 can be realized, which can effectively prevent the second rotating member 10 from detaching from the first rotating member 5. Furthermore, a certain gap is maintained between the second rotating member 10 of the probe and the second housing 11, avoiding the generation of NURD, effectively extending the service time of the connector, reducing the consumption of PIM, and effectively reducing costs.

[0031] Furthermore, a clamping boss 15-1 is provided on the clamping member 15, and a mounting groove 16 is provided on the second rotating member 10. The clamping boss 15-1 can be clamped with the mounting groove 16. Specifically, after the clamping boss 15-1 and the mounting groove 16 are assembled, the two are axially and circumferentially fastened, so that the first rotating member 5 can drive the second rotating member 10 to rotate.

[0032] On the basis of the above embodiments, the clamping member 15 is rod-shaped; one end of the clamping member 15 is mounted on the first rotating member 5, and the clamping boss 15-1 is located at the other end of the clamping member 15; the clamping boss 15-1 is an arc-shaped boss, and / or the mounting groove 16 is an arc-shaped groove. When the probe is assembled with the controller, the clamping member 15 can be opened toward the radially outer side of the second rotating member 10 until the clamping boss 15-1 is clamped into the groove. Specifically, the settings of the arc-shaped boss and the arc-shaped groove are both for realizing the automatic opening of the clamping member 15 under the action of the arc when the clamping boss 15-1 and the mounting groove 16 are separated. At least one of the clamping boss 15-1 and the mounting groove 16 can be arc-shaped. Of course, when the clamping boss 15-1 is an arc-shaped boss and the mounting groove 16 is an arc-shaped groove, the assembly is more convenient and smooth, which is the optimal solution.

[0033] A clamping groove for hingedly mounting the clamping part 15 is provided on the first rotating part 5, and a rotation gap 18 for the clamping part 15 to rotate is provided between the clamping groove and the clamping part 15. When the second rotating part 10 is assembled with the first rotating part 5, one end of the clamping part 15 equipped with the clamping boss 15-1 will expand along the radial direction of the second rotating part 10, and at the same time, the other end of the clamping part 15 will rotate in the clamping groove.

[0034] On the basis of the above embodiments, a clamping fulcrum 19 is provided between the clamping component 15 and the clamping groove, and a torsion spring 17 is installed on the clamping fulcrum 19 to press the clamping component 15 against the second rotating component 10 to ensure the stable connection between the clamping component 15 and the installation groove 16.

[0035] On the basis of the above embodiments, a locking assembly for locking the first housing 4 and the second housing 11 is further included.

[0036] Furthermore, the locking assembly includes a release button 1, a locking fulcrum 2 and a plug buckle 3. The plug buckle 3 can be engaged with the locking parts of the controller assembly and the catheter assembly. The release button 1 can drive the plug buckle 3 to swing relative to the locking fulcrum 2 to release the locked state.

[0037] Specifically, the release button 1 is connected to the plug buckle 3, and the direction of the force is changed by the locking fulcrum 2, so that when it is pressed downward, the plug buckle 3 moves upward and releases from the second shell 11, thereby achieving separation of the two.

[0038] On the basis of the above embodiments, a limiting component 20 is further provided on the inner periphery of the second housing 11 . When the second housing 11 is separated from the first housing 4 , the limiting component 20 can abut against the second rotating component 10 to separate the second rotating component 10 from the first rotating component 5 .

[0039] Specifically, the limiting component 20 is annular and is detachably engaged with the inner circumference of the second housing 11. Figure 3 When the release button 1 is pressed, the first housing 4 is directly removed, and under the action of the limiting component 20, the limiting component 20 and the second rotating component 10 are in contact with each other at opposite sides, so that the second rotating component 10 cannot be removed from the second housing 11, and under the action of the limiting component 20, the second rotating component 10 is removed at the same time (at this time, the clamping boss 15-1 slides out of the mounting groove 16, and the clamping component 15 is opened), so that the IVUS probe is separated from the controller.

[0040] On the basis of the above embodiments, the first rotating member 5 is provided with an elastic needle assembly 7, and the second rotating member 10 is provided with an electrical contact 8-1, and the elastic needle assembly 7 can abut against the electrical contact 8-1.

[0041] With the above settings, the cooperation mode of the pin and socket in the prior art is improved to the cooperation between the spring pin assembly 7 and the electrical contact 8-1, avoiding the phenomenon of poor electrical conductivity caused by the loosening of the pin due to wear during long-term use. At the same time, the cost of the consumable side of the connector, that is, the probe side, is reduced to 1 / 150 of the original, greatly reducing the cost of consumables per case and making the high-end intravascular ultrasound examination much more accessible to the general public.

[0042] The spring pin assembly 7 includes a needle body 7-4, a needle rear seat sleeve 7-1 for supporting and guiding the needle body 7-4, and an elastic member 7-2 installed inside the needle rear seat sleeve 7-1 for electrically connecting the needle body 7-4 and the needle rear seat sleeve 7-1. The needle connecting portion 7-3 of the needle body 7-4 is located inside the needle rear seat sleeve 7-1, and its end is suspended outside the needle rear seat sleeve 7-1; a circuit board 8 for arranging the electrical contact 8-1 is provided on the second rotating member 10; after the second rotating member 10 is assembled with the controller assembly, the circuit board 8 pushes the needle body 7-4 to contract the elastic member 7-2. Preferably, the electrical contact 8-1 is a gold-immersed contact with good electrical conductivity.

[0043] Specifically, the needle rear seat sleeve 7-1 can position the needle body 7-4 so that the needle body 7-4 does not skew left and right. The exposed part of the needle body 7-4 is provided with a tip at the front, which can reliably contact the electrical contact 8-1 of the PCB circuit board 8.

[0044] With the above settings, preferably, the spring pin assembly 7 is used in cooperation with the setting of the clamping member 15 and the installation groove 16, and the assembly accuracy is higher. It can avoid the situation that when the clamping member 15 and the installation groove 16 are in alignment, the pin and the socket cannot be aligned, or when the pin and the socket are in alignment, the clamping member 15 and the installation groove 16 cannot be aligned in the way of using the pin and the socket in the prior art. By using the spring pin assembly 7 in cooperation with the setting of the clamping member 15 and the installation groove 16, the assembly accuracy is significantly improved. Of course, in order to save the improvement cost, the setting of the clamping member 15 and the installation groove 16 in this embodiment can also be used in cooperation with the pin and the socket.

[0045] In a specific embodiment, the connector includes: a release button 1, which functions to open the plug buckle 3 so that the stuck second housing 11 can be pulled out; a locking fulcrum 2, which functions to change the direction of force; a plug buckle 3, which is inserted into the second housing 11 before use, and the plug buckle 3 firmly holds the stationary part of the catheter assembly, i.e., the second housing 11; a controller drive rotating shaft, which functions to transmit the rotational force of the motor to the second rotating member 10 through the clamping member 15 and the mounting groove 16, or to the second rotating member 10 through the pins and sockets; a controller transmission member 6, i.e., an ultrasonic PULSE / echo transmission line, which functions to transmit the PUSE signal generated by the host to the catheter transmission member 9, i.e., the coaxial line 14 of the catheter assembly, and finally to the ultrasonic transducer array element of the catheter core component; a spring pin assembly 7, which functions to transmit the PULSE signal of the controller transmission member 6 to the electrical contact 8-1; a circuit board 8, which functions to transmit the signal of the controller transmission member 6 to the catheter transmission member 9; a catheter transmission member 9, i.e., a catheter assembly PULSE / echo transmission line, which functions to transmit the signal of the controller transmission member 6 to the ultrasonic transducer array element of the catheter core component; a second rotating member 10, which functions to transmit rotational energy to the coaxial line of the catheter drive shaft; a second housing 11, which functions to mount all the components inside the catheter; a static rotation gap 12, and the NURD phenomenon is mainly caused by the friction between rotation and rest at this gap; a catheter sheath 13, which functions to protect the coaxial wire of the catheter assembly drive shaft; a coaxial line 14 of the catheter assembly, which functions to transmit the energy of the second rotating member 10 and transmit the PULSE signal to the core component ultrasonic transducer array element at the catheter terminal, and at the same time transmit the echo signal of the ultrasonic transducer array element to the host through the catheter assembly PULSE / echo transmission line, the circuit board 8, the spring pin assembly 7, and the controller transmission member 6, and after algorithm processing, display the result on the device screen; a clamping member 15, which functions to clamp the mounting groove 16 on the second rotating member 10 after the second rotating member 10 is inserted, so that the second rotating member 10 of the probe and the first rotating member 5 of the controller become one body, preventing the second rotating member 10 from loosening backward during rotation; a mounting groove 16, which functions to cooperate with the clamping member 15 and buckle with each other; an electrical contact 8-1, which has a conductive disk on it and functions to cooperate with the spring pin to transmit the PULSE signal and the echo signal; a rotation gap 18, which functions to allow the clamping member 15 to open when the second rotating member 10 is inserted, the second rotating member 10 is inserted, and reset under the action of the torsion spring 17; a clamping fulcrum 19, which functions to change the direction of force; a torsion spring 17, which functions to generate a stress acting on the clamping member 15 to generate a locking force towards the axial center part to buckle the second rotating member 10.

[0046] For the IVUS probe connector provided in this embodiment, its assembly process is as follows: insert the second housing 11 ---- the plug buckle 3 opens ---- the clamping component 15 opens -- the plug buckle 3 is snapped into the groove of the second housing 11 -- under the action of the torsion spring 17, the clamping component 15 buckles the installation groove 16 - the needle body contacts the electrical contact 8-1 ---- the machine starts to work ---- after the work is completed --- stop ---- press the release button 1 --- the plug buckle 3 opens --- pull the second housing 11 forcefully --- a force is generated to the right on the probe part --- since the installation groove 16 is a semi-circular chute, after the force reaches a certain level, the installation groove 16 pushes the clamping component 15 to open --- pull out -- completed.

[0047] In addition to the above IVUS probe connector, the present application also provides an ultrasonic diagnostic device including the above IVUS probe connector. For the structures of other parts of this ultrasonic diagnostic device, please refer to the prior art and will not be elaborated herein.

[0048] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0049] The above has introduced the IVUS probe connector provided by the present application in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An IVUS probe connector, comprising a first rotating member (5) disposed on a controller and a first outer casing (4) sleeved outside the first rotating member (5), and a second rotating member (10) disposed on the probe and a second outer casing (11) sleeved outside the rotating member, wherein the first rotating member (5) and the second rotating member (10) are electrically connected, and the first outer casing (4) and the second outer casing (11) are detachably fixed, characterized in that, It further includes a clamping component (15) provided on the first rotating component (5). After the probe is assembled with the controller, the clamping component (15) is clamped to the circumference of the second rotating component (10). A limiting component (20) is further provided on the inner circumference of the second housing (11). When the second housing (11) is separated from the first housing (4), the limiting component (20) can abut against the second rotating component (10) to separate the second rotating component (10) from the first rotating component (5); and the limiting component (20) is annular and is detachably clamped to the inner circumference of the second housing (11). A clamping boss (15-1) is provided on the clamping component (15), and a mounting groove (16) is provided on the second rotating component (10). The clamping boss (15-1) can be clamped with the mounting groove (16); after the clamping boss (15-1) and the mounting groove (16) are assembled, the two are axially and circumferentially fastened, so that the first rotating component (5) can drive the second rotating component (10) to rotate.

2. The IVUS probe connector according to claim 1, characterized in that, The clamping component (15) is rod-shaped; the clamping boss (15-1) is an arc-shaped boss, and / or the mounting groove (16) is an arc-shaped groove; when the probe is assembled with the controller, the clamping component (15) can open towards the radial outside of the second rotating component (10) until the clamping boss (15-1) is inserted into the mounting groove (16).

3. The IVUS probe connector according to claim 1, characterized in that, A clamping groove for hinge-mounting the clamping component (15) is provided on the first rotating component (5), and a rotating gap (18) for the clamping component (15) to rotate is provided between the clamping groove and the clamping component (15).

4. The IVUS probe connector according to claim 3, characterized in that, A clamping fulcrum (19) is provided between the clamping component (15) and the clamping groove, and a torsion spring (17) for pressing the clamping component (15) against the second rotating component (10) is mounted on the clamping fulcrum (19).

5. The IVUS probe connector according to claim 1, wherein It further includes a locking assembly for locking the first housing (4) and the second housing (11).

6. The IVUS probe connector according to any one of claims 1 to 5, characterized in that, A spring pin assembly (7) is provided on the first rotating component (5), and an electrical contact (8-1) is provided on the second rotating component (10). The spring pin assembly (7) can abut against the electrical contact (8-1).

7. The IVUS probe connector according to claim 6, wherein The spring pin assembly (7) includes a needle body (7-4), a needle rear seat sleeve (7-1) for supporting and guiding the needle body (7-4), and an elastic component (7-2) installed inside the needle rear seat sleeve (7-1) for electrically connecting the needle body (7-4) and the needle rear seat sleeve (7-1); a circuit board (8) for arranging the electrical contact (8-1) is provided on the second rotating component (10); after the second rotating component (10) is assembled with the controller assembly, the circuit board (8) pushes the needle body (7-4) to contract the elastic component (7-2).

8. An ultrasonic diagnostic device, including an IVUS probe connector, characterized in that, The IVUS probe connector is the IVUS probe connector according to any one of claims 1-7.

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