CN219147656U - Ultrasonic catheter device - Google Patents

Abstract

The utility model belongs to the technical field of medical instruments, and discloses an ultrasonic catheter device which comprises a catheter shell, a sealing seat, a transmission assembly and a sealing assembly, wherein a catheter hole, a sealing groove and a transition groove are sequentially communicated with the catheter shell from a first end to a second end, a first overflow hole is formed in the peripheral side of the catheter shell, the sealing seat is arranged in the sealing groove, a perforation is formed in the sealing seat, the first end of the transmission assembly sequentially penetrates through the transition groove, the perforation and the catheter hole, the second end of the transmission assembly is used for being connected with a driving device, the sealing assembly is arranged in the sealing groove, and the sealing assembly is used for sealing a gap between the sealing seat and the sealing groove and a gap between the transmission assembly and the perforation. According to the ultrasonic catheter device provided by the utility model, the sealing component can effectively prevent the mixed solution from flowing into the transition groove, and even if the mixed solution flows into the transition groove, the mixed solution can flow out of the first overflow hole, so that the mixed solution is effectively prevented from flowing to the driving device to damage the driving device.

Description

Ultrasonic catheter device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an ultrasonic catheter device.

Background

The IVUS system is called an intravascular ultrasound imaging system, wherein an IVUS catheter (hereinafter referred to as a "catheter") needs to transmit and receive ultrasound waves for imaging under high-speed rotation, and the rotation motion is generally realized based on an external and reusable driving device.

In the prior art, before the catheter enters the human body, a mixed solution of normal saline and heparin sodium is usually injected into the catheter, and the water pressure is very high when the mixed solution fills the catheter, so that bubbles in the catheter are effectively discharged, and the accuracy of measurement is further ensured. At present, the inside of the guide pipe is generally sealed by a single sealing ring to prevent the mixed solution from flowing to the driving device, the sealing mode has a certain risk of water leakage, the mixed solution has strong conductivity, and the water leakage can cause damage to the driving device. There is a need for an ultrasound catheter device that solves the above-mentioned technical problems.

Disclosure of Invention

The utility model aims to provide an ultrasonic catheter device which effectively prevents mixed solution from flowing to a driving device.

To achieve the purpose, the utility model adopts the following technical scheme:

there is provided an ultrasound catheter device comprising:

the guide pipe shell is sequentially communicated with a guide pipe hole, a sealing groove and a transition groove from a first end to a second end, mixed solution can be injected into the guide pipe hole, and a first overflow hole communicated with the transition groove is formed in the peripheral side of the guide pipe shell;

the sealing seat is arranged in the sealing groove and provided with a perforation;

the first end of the transmission component sequentially penetrates through the transition groove, the perforation and the conduit hole, and the second end of the transmission component is used for being connected with a driving device;

and the sealing assembly is arranged in the sealing groove and is used for sealing a gap between the sealing seat and the sealing groove and a gap between the transmission assembly and the perforation.

Optionally, the sealing seat is provided with a fixing groove communicated with the perforation, and the sealing assembly comprises:

the first sealing ring is arranged in the sealing groove, a first side surface of the first sealing ring is in butt joint with the bottom surface of the sealing groove, and a second side surface of the first sealing ring is in butt joint with the end surface of the sealing seat, provided with the fixing groove;

the second sealing ring is arranged in the fixing groove, the first side face of the second sealing ring is abutted with the second side face of the first sealing ring, and the second side face of the second sealing ring is abutted with the bottom face of the fixing groove.

Optionally, the second side circumference edge of the first sealing ring extends towards the sealing seat and is provided with an annular extending edge, the sealing seat is provided with an annular groove at one end circumference edge of the fixing groove, and the annular extending edge is wrapped on the sealing seat and is arranged in the annular groove.

Optionally, the sealing assembly further includes a sealing element, where the sealing element is disposed at an end of the sealing seat opposite to the fixing groove, and the sealing element can seal a gap between a peripheral edge of the end of the sealing seat opposite to the fixing groove and an inner side surface of the sealing groove.

Optionally, the transmission assembly includes:

the first end of the transmission pipe sequentially penetrates through the transition groove, the perforation, the first sealing ring and the second sealing ring and is arranged in the guide pipe hole, and the second end of the transmission pipe is used for being connected with the driving device;

the rotating wire penetrates through the guide pipe hole, the first end of the rotating wire penetrates out of the guide pipe hole, and the second end of the rotating wire is inserted into the first end of the transmission pipe and fixedly connected with the transmission pipe.

Optionally, a chamfer is provided at the first end of the transmission tube and/or glue is coated at the joint of the transmission tube and the rotating wire, so that the joint of the transmission tube and the rotating wire is in a slope shape.

Optionally, the device further comprises a switching assembly, wherein the switching assembly is detachably connected with the transmission assembly, and the transmission assembly can be connected with the driving device through the switching assembly.

Optionally, the switching assembly includes:

the adapter is provided with a first through hole;

the fixed seat is connected with the adapter seat, a second through hole coaxial with the first through hole is formed in the fixed seat, and a second overflow hole communicated with the second through hole is formed in the periphery of the fixed seat;

the butt joint shaft penetrates through the first through hole and the second through hole and is rotationally connected with the adapter seat, and the butt joint shaft is used for being connected with the driving device;

the third sealing ring is arranged in the second through hole and sleeved on the butt joint shaft.

Optionally, an annular groove is formed in the outer annular surface of the third sealing ring, and a fourth sealing ring is arranged in the annular groove.

Optionally, a sealing lip is arranged on the inner ring surface of the third sealing ring, the lip opening of the sealing lip is arranged back to the adapter seat, an elastomer is arranged in the sealing lip, and the elastomer can enable the inner lip edge of the sealing lip to be abutted to the butt joint shaft.

The beneficial effects are that:

according to the ultrasonic catheter device provided by the utility model, when the driving device drives the transmission assembly to act, the mixed solution is injected into the catheter hole, and the mixed solution can be effectively prevented from flowing into the transition groove from the periphery of the sealing seat under the sealing action of the sealing assembly; the mixed solution can be effectively prevented from flowing into the transition groove from the perforation; in addition, even if the mixed solution flows into the transition groove, the mixed solution can flow out from the first overflow hole, so that the mixed solution is effectively prevented from flowing to the driving device to damage the driving device.

Drawings

FIG. 1 is a cross-sectional view of a portion of an ultrasound catheter device according to a first embodiment of the present utility model;

FIG. 2 is a schematic view showing an internal structure of a catheter housing according to a first embodiment of the present utility model;

FIG. 3 is a schematic view of a portion of an ultrasound catheter device according to a first embodiment of the present utility model;

FIG. 4 is a cross-sectional view of another portion of an ultrasound catheter device according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a connection between a transmission tube and a rotary wire according to a first embodiment of the present utility model;

FIG. 6 is a cross-sectional view of still another portion of an ultrasound catheter device according to a first embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a third seal ring provided in accordance with an embodiment of the present utility model;

FIG. 8 is a schematic structural view of a third seal ring according to a first embodiment of the present utility model;

fig. 9 is a partial structural cross-sectional view of an ultrasound catheter device according to a second embodiment of the present utility model.

In the figure:

100. a conductor housing; 110. a conduit aperture; 120. sealing grooves; 130. a transition groove; 140. a first overflow aperture; 150. a water injection hole;

200. a sealing seat; 210. perforating; 220. a fixing groove; 230. an annular groove;

300. a seal;

410. a first seal ring; 411. an annular extension edge; 420. a second seal ring;

500. a transmission assembly; 510. a transmission tube; 520. spinning;

600. a one-way valve;

700. a switching component; 710. an adapter; 711. a first through hole; 720. a fixing seat; 721. a second through hole; 722. a second overflow aperture; 730. a butt joint shaft; 731. a sleeve portion; 740. a third seal ring; 741. an annular groove; 7411. a fourth seal ring; 742. a sealing lip; 7421. an elastomer; 7422. an inner lip; 74221. lip tip; 750. a first bearing; 760. a bearing seat; 761. a second bearing;

810. a switching plug-in; 820. and a protective sleeve.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

Referring to fig. 1 to 4, the present embodiment provides an ultrasonic catheter apparatus including a catheter housing 100, a seal holder 200, a transmission assembly 500, and a seal assembly. The conduit shell 100 is sequentially provided with a conduit hole 110, a sealing groove 120 and a transition groove 130 from a first end to a second end, wherein mixed solution can be injected into the conduit hole 110, and a first overflow hole 140 communicated with the transition groove 130 is formed in the peripheral side of the conduit shell 100; the seal seat 200 is arranged in the seal groove 120, and the seal seat 200 is provided with a perforation 210; the first end of the transmission assembly 500 sequentially penetrates through the transition groove 130, the perforation 210 and the conduit hole 110, and the second end of the transmission assembly 500 is used for connecting a driving device; the seal assembly is disposed in the seal groove 120, and is used for sealing a gap between the seal seat 200 and the seal groove 120 and a gap between the transmission assembly 500 and the through hole 210.

In this embodiment, when the driving device drives the transmission assembly 500 to act, the mixed solution is injected into the conduit hole 110, and the mixed solution can be effectively prevented from flowing into the transition groove 130 from the outer periphery of the sealing seat 200 under the sealing action of the sealing assembly; and can effectively prevent the mixed solution from flowing into the transition groove 130 from the perforation 210; in addition, even if the mixed solution flows into the transition groove 130, the mixed solution can flow out from the first overflow holes 140, thereby providing multiple waterproof protection, further effectively preventing the mixed solution from flowing to the driving device to damage the driving device, and having high reliability.

In this embodiment, as shown in fig. 1 to 4, the seal seat 200 is provided with a fixing groove 220 communicating with the through hole 210, the seal assembly includes a first seal ring 410 and a second seal ring 420, the first seal ring 410 is disposed in the seal groove 120, a first side surface of the first seal ring 410 is abutted with a bottom surface of the seal groove 120, and a second side surface of the first seal ring 410 is abutted with an end surface of the seal seat 200, where the fixing groove 220 is provided; the second seal ring 420 is disposed in the fixing groove 220, the first side surface of the second seal ring 420 is in contact with the second side surface of the first seal ring 410, and the second side surface of the second seal ring 420 is in contact with the bottom surface of the fixing groove 220. Further, the transmission assembly 500 is threaded through the first seal ring 410 and the second seal ring 420. In this embodiment, under the sealing action of the first sealing ring 410, the mixed solution can be effectively prevented from flowing into the transition groove 130 from the outer periphery of the sealing seat 200; and under the action of the first sealing ring 410 and the second sealing ring 420, the mixed solution can be effectively prevented from flowing into the transition groove 130 from the perforation 210, and the reliability is high.

Preferably, the first seal ring 410 and the second seal ring 420 are chevron shaped seal rings, which reduce contact area with the transmission assembly 500 to reduce resistance and heat generation during rotation.

Further, the seal assembly further includes a seal 300, where the seal 300 is disposed at an end of the seal seat 200 facing away from the fixing groove 220, and the seal 300 can seal a gap between a peripheral edge of the end of the seal seat 200 facing away from the fixing groove 220 and an inner side surface of the seal groove 120. In the present embodiment, the sealing member 300 is matched with the first sealing ring 410, so that the gap between the sealing seat 200 and the sealing groove 120 can be better sealed.

In this embodiment, referring to fig. 1 and 5, a transmission assembly 500 includes a transmission tube 510 and a rotary wire 520. Wherein, a first end of the transmission tube 510 sequentially penetrates through the transition groove 130, the perforation 210, the first sealing ring 410 and the second sealing ring 420 and is arranged in the conduit hole 110, and a second end of the transmission tube 510 is used for connecting a driving device; the rotating wire 520 is arranged in the conduit hole 110 in a penetrating way, a first end of the rotating wire 520 is arranged out of the conduit hole 110 in a penetrating way, and a second end of the rotating wire 520 is inserted into a first end of the transmission tube 510 and is fixedly connected with the transmission tube 510. In this embodiment, the driving tube 510 is a rigid tube, the rotating wire 520 is a rotating wire, and the driving tube 510 can effectively ensure the tightness between the driving assembly 500 and the first sealing ring 410 and the second sealing ring 420, and simultaneously effectively slow down the abrasion of the driving tube 510 to the first sealing ring 410 and the second sealing ring 420.

Preferably, the transmission tube 510 is made of steel.

Specifically, the first end of the transmission tube 510 is provided with a chamfer and/or the joint of the transmission tube 510 and the rotating wire 520 is coated with glue, so that the joint of the transmission tube 510 and the rotating wire 520 is in a slope shape, and further the joint of the transmission tube 510 and the rotating wire 520 is in smooth transition, when the transmission assembly 500 penetrates through the first sealing ring 410 and the second sealing ring 420, the joint of the transmission tube 510 and the rotating wire 520 is effectively prevented from damaging the first sealing ring 410 and the second sealing ring 420, the tightness of the first sealing ring 410 and the second sealing ring 420 is ensured, and meanwhile, the situation that the cutting generated due to the damage of the first sealing ring 410 and the second sealing ring 420 enters a human body along with water flow is avoided.

Preferably, the sealing member 300 is a solidified glue, in order to ensure that the outer ring surface of the first sealing ring 410 is tightly abutted against the inner side surface of the sealing groove 120, when the ultrasonic catheter device is assembled, the first sealing ring 410 is installed in the sealing groove 120, the second sealing ring 420 is installed in the fixing groove 220, and the transmission tube 510 is penetrated through the perforation 210 and the second sealing ring 420; then, the sealing seat 200 is communicated with the second sealing ring 420 and the transmission tube 510 and is arranged in the catheter casing 100, and the perforation 210, the first sealing ring 410, the second sealing ring 420 and the catheter hole 110 can be ensured to be coaxial through the transmission tube 510; finally, a weight or other weights are sleeved on the transmission tube 510 as a counterweight to compress the sealing seat 200 in the sealing groove 120, glue is applied to fix the sealing seat 200 in the conductor tube housing 100, the first sealing ring 410 is stretched by the counterweight pressurization, and the second sealing ring 420 enables the first sealing ring 410 to better control deformation, so that the outer ring surface of the first sealing ring 410 is tightly abutted against the inner side surface of the sealing groove 120. The size of the counterweight depends on the hardness of the first seal ring 410 and the amount of deformation required.

Further, the shape of the seal seat 200 is in a frustum shape, the shape of the seal groove 120 is matched with the shape of the seal seat 200, and the first seal ring 410 can be better deformed and extended by weighting pressurization, so that the first seal ring 410 can better seal between the seal groove 120 and the seal seat 200.

In the present embodiment, as shown in fig. 2, a water injection hole 150 communicating with the pipe hole 110 is provided on the first end circumference side of the pipe housing 100, and a check valve 600 is connected to the water injection hole 150. In this embodiment, the water injection device is connected to the check valve 600, and the mixed solution is injected into the conduit hole 110 through the water injection hole 150, so that the check valve 600 can prevent the mixed solution from flowing back, and effectively ensure the water pressure in the conduit hole 110, so as to discharge the air bubbles in the conduit hole 110.

In this embodiment, referring to fig. 6, the ultrasound catheter device further includes a switching assembly 700, the switching assembly 700 is detachably connected with the transmission assembly 500, the transmission assembly 500 can be connected with the driving device through the switching assembly 700, the switching assembly 700 is designed to facilitate connection of the transmission assembly 500 with the driving device, and further prevent the mixed solution from flowing to the driving device.

Specifically, the adapter assembly 700 includes an adapter 710, a holder 720, a docking shaft 730, and a third seal ring 740. Wherein, the adaptor 710 is provided with a first through hole 711; the fixing base 720 is connected with the adapter base 710, the fixing base 720 is provided with a second through hole 721 coaxial with the first through hole 711, and the periphery of the fixing base 720 is provided with a second overflow hole 722 communicated with the second through hole 721; the docking shaft 730 is used for being connected with a driving device, the docking shaft 730 penetrates through the first through hole 711 and the second through hole 721, and the docking shaft 730 is rotationally connected with the adapter 710; the third sealing ring 740 is disposed in the second through hole 721 and sleeved on the docking shaft 730. The second overflow hole 722 is disposed at a side of the sealing ring facing away from the adaptor 710. In the present embodiment, when the first seal ring 410 and the second seal ring 420 are not sealed sufficiently or cleaned properly due to manufacturing, aging, and infiltration, the mixed solution flows into the second through hole 721 and can flow out of the second overflow hole 722, and the design of the third seal ring 740 effectively prevents the mixed solution from flowing into the first through hole 711 from the inner side surface of the second through hole 721 and the peripheral side surface of the docking shaft 730, thereby more effectively preventing the mixed solution from flowing to the driving device and damaging the driving device. In addition, the split design of the adapter 710 and the fixing base 720 facilitates the assembly of the docking shaft 730 and the third sealing ring 740, and has high reliability and simple and compact structure.

Specifically, the adaptor 710 is provided with a first bearing 750 towards one end of the fixing base 720, the adaptor 710 is provided with a bearing seat 760 at one end facing away from the fixing base 720, a second bearing 761 is provided in the bearing seat 760, the docking shaft 730 is arranged on the first bearing 750 and the second bearing 761 in a penetrating manner and is rotationally connected with the adaptor 710 through the first bearing 750 and the second bearing 761, disassembly and assembly are convenient, and the adaptor is designed in an overhanging beam type, and the adaptor is compact in structure and high in stability.

Further, the first through hole 711 is a stepped hole, and the large end of the first through hole 711 faces the fixing seat 720, so that the mixed solution can be effectively prevented from flowing to the driving device.

Specifically, the second through hole 721 is a stepped hole, the big end hole of the second through hole 721 is disposed towards the adapter seat 710, the third sealing ring 740 is disposed in the big end hole of the second through hole 721, the side surface of the third sealing ring 740 facing away from the adapter seat 710 abuts against the stepped surface of the second through hole 721, one end of the adapter seat 710 facing the fixed seat 720 is provided with an annular protrusion, the annular protrusion abuts against and is pressed against the side surface of the third sealing ring 740 facing the adapter seat 710, so as to realize the axial positioning of the third sealing ring 740, and the sealing between the third sealing ring 740 and the fixed seat 720 can be realized.

Preferably, the first sealing ring 410, the second sealing ring 420 and the third sealing ring 740 are preferably made of materials with good elasticity, wear resistance and high temperature resistance, such as polytetrafluoroethylene, polyurethane and the like.

It should be noted that the second overflow holes 722 are obliquely arranged to increase the opening area at the position communicated with the second through holes 721, so as to accelerate the outflow of the mixed solution.

In the present embodiment, referring to fig. 7 to 8, an annular groove 741 is provided on the outer circumferential surface of the third seal ring 740, and a fourth seal ring 7411 is provided in the annular groove 741. In this embodiment, an interference fit is formed between the fourth seal ring 7411 and the inner side surface of the second through hole 721, and the mixed solution is prevented by radial deformation of the fourth seal ring 7411, so that static sealing is better realized. Wherein, according to factors such as required seal pressure, rotational friction moment, temperature, etc. confirm comprehensively, the interference is more than 0.1 mm.

Preferably, the fourth seal ring 7411 is preferably made of a material having good elasticity and weather resistance, such as fluororubber, silica gel, or the like.

Preferably, the fourth seal 7411 is an O-ring seal.

Further, a sealing lip 742 is disposed on the inner annular surface of the third sealing ring 740, the lip opening of the sealing lip 742 is disposed opposite to the adaptor 710, an elastomer 7421 is disposed in the sealing lip 742, and the elastomer 7421 can enable the inner lip 7422 of the sealing lip 742 to abut against the abutment shaft 730, so as to realize sealing. In this embodiment, the elastomer 7421 is designed to enable the sealing lip 742 to form a good seal with the mating shaft 730, the inner lip 7422 of the sealing lip 742 has a lip tip 74221, the lip tip 74221 abuts against the mating shaft 730 and forms an interference fit with the mating shaft 730 to achieve a rotary seal, and the sealing lip 742 is always in line contact or micro-surface contact with the mating shaft 730 to reduce frictional resistance and frictional heat generation by elastic deformation of the material. When the amount of the mixed solution in the second through hole 721 is excessive, the mixed solution will flow into the sealing lip 742, so that the inner lip 7422 of the sealing lip 742 generates additional radial pressure, and further the contact pressure between the lip tip 74221 and the butt joint shaft 730 is increased, so as to further improve the tightness, and ensure that the liquid will not enter the inside of the catheter driving device through the sealing ring. During assembly, the third sealing ring 740 is firstly installed on the fixed seat 720, and when the butt joint shaft 730 penetrates into the third sealing ring 740, axial guiding and radial movement control are required to be carried out by the tool so as to avoid excessive deformation of the sealing lip 742; wherein, the axial guiding angle is 10 degrees to 30 degrees, and the coaxiality of the butt joint shaft 730 and the third sealing ring 740 is within 0.2 mm.

Preferably, the cross-sectional shape of the elastomer 7421 may be V-shaped, O-shaped, or other shapes.

In this embodiment, referring to fig. 1 and 6, the ultrasound catheter device further includes an adapter 810 connected to the transmission assembly 500, and the adapter 810 is detachably connected to the docking shaft 730. Specifically, the end of the docking shaft 730 facing the adaptor 810 is provided with a sleeve portion 731, and the plug assembly is plugged into the sleeve portion 731. The adaptor 810 is a prior art, and will not be described in detail herein.

Further, the ultrasound catheter device further comprises a protective sleeve 820 sleeved on the adapter plug 810, and the protective sleeve 820 is connected with the second end of the catheter housing 100 to form protection.

Example two

In the present embodiment, as shown in fig. 9, an annular extending edge 411 is provided on a peripheral edge of a second side of the first sealing ring 410 toward the sealing seat 200, an annular groove 230 is provided on a peripheral edge of one end of the sealing seat 200 provided with the fixing groove 220, the annular extending edge 411 is wrapped on the sealing seat 200 and is disposed in the annular groove 230, and the contact area between the first sealing ring 410 and the inner side of the sealing groove 120 is enlarged by the annular extending edge 411 to improve the sealing effect.

Further, the circumferential side of the annular groove 230 of the seal seat 200 is inclined inwardly from the bottom of the groove to the top of the groove, and the shape of the seal groove 120 matches the shape of the seal seat 200, so that the annular extension 411 can better seal between the seal groove 120 and the seal seat 200 when the first seal ring 410 is extended by the pressurization of the counterweight.

Other structures of the ultrasound catheter device provided in this embodiment are the same as those of the first embodiment, and will not be described in detail herein.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. An ultrasound catheter device, comprising:

the pipe comprises a pipe shell (100), wherein the pipe shell (100) is sequentially provided with a pipe hole (110), a sealing groove (120) and a transition groove (130) from a first end to a second end in a communicated mode, mixed solution can be injected into the pipe hole (110), and a first overflow hole (140) communicated with the transition groove (130) is formed in the peripheral side of the pipe shell (100);

the sealing seat (200) is arranged in the sealing groove (120), and the sealing seat (200) is provided with a perforation (210);

the first end of the transmission assembly (500) sequentially penetrates through the transition groove (130), the perforation (210) and the duct hole (110), and the second end of the transmission assembly (500) is used for being connected with a driving device;

and the sealing assembly is arranged in the sealing groove (120) and is used for sealing a gap between the sealing seat (200) and the sealing groove (120) and a gap between the transmission assembly (500) and the perforation (210).

2. The ultrasound catheter device according to claim 1, wherein the sealing seat (200) is provided with a fixation groove (220) communicating with the perforation (210), the sealing assembly comprising:

the first sealing ring (410) is arranged in the sealing groove (120), a first side surface of the first sealing ring (410) is in contact with the bottom surface of the sealing groove (120), and a second side surface of the first sealing ring (410) is in contact with the end surface of the sealing seat (200) at one end provided with the fixing groove (220);

the second sealing ring (420) is arranged in the fixing groove (220), a first side surface of the second sealing ring (420) is in contact with a second side surface of the first sealing ring (410), and a second side surface of the second sealing ring (420) is in contact with the bottom surface of the fixing groove (220).

3. The ultrasonic catheter device of claim 2, wherein the second side peripheral edge of the first seal ring (410) is provided with an annular extension edge (411) extending toward the seal seat (200), one end peripheral edge of the seal seat (200) provided with the fixing groove (220) is provided with an annular groove (230), and the annular extension edge (411) is wrapped in the seal seat (200) and is placed in the annular groove (230).

4. The ultrasonic catheter device of claim 2, wherein the seal assembly further comprises a seal (300), the seal (300) is disposed at an end of the seal holder (200) facing away from the fixing groove (220), and the seal (300) is capable of sealing a gap between a peripheral edge of the end of the seal holder (200) facing away from the fixing groove (220) and an inner side surface of the seal groove (120).

5. The ultrasound catheter device of claim 2, wherein the transmission assembly (500) comprises:

the first end of the transmission tube (510) sequentially penetrates through the transition groove (130), the perforation (210), the first sealing ring (410) and the second sealing ring (420) and is arranged in the guide tube hole (110), and the second end of the transmission tube (510) is used for being connected with the driving device;

the rotating wire (520) penetrates through the duct hole (110), the first end of the rotating wire (520) penetrates out of the duct hole (110) to be arranged, and the second end of the rotating wire (520) is inserted into the first end of the transmission tube (510) and fixedly connected with the transmission tube (510).

6. The ultrasound catheter device according to claim 5, wherein the first end of the transmission tube (510) is provided with a chamfer and/or the connection of the transmission tube (510) and the rotation wire (520) is coated with glue such that the connection of the transmission tube (510) and the rotation wire (520) is ramp-shaped.

7. The ultrasound catheter device according to any of claims 1 to 6, further comprising an adapter assembly (700), the adapter assembly (700) being detachably connected to the transmission assembly (500), the transmission assembly (500) being connectable to the drive device via the adapter assembly (700).

8. The ultrasound catheter device of claim 7 wherein the adapter assembly (700) comprises:

the adapter (710) is provided with a first through hole (711);

the fixed seat (720) is connected with the adapter seat (710), a second through hole (721) coaxial with the first through hole (711) is formed in the fixed seat (720), and a second overflow hole (722) communicated with the second through hole (721) is formed in the periphery of the fixed seat (720);

the butt joint shaft (730) is arranged through the first through hole (711) and the second through hole (721), the butt joint shaft (730) is rotationally connected with the adapter seat (710), and the butt joint shaft (730) is used for being connected with the driving device;

and the third sealing ring (740) is arranged in the second through hole (721) and sleeved on the butt joint shaft (730).

9. The ultrasonic catheter device of claim 8, wherein an outer annular surface of the third seal ring (740) is provided with an annular groove (741), and a fourth seal ring (741) is provided in the annular groove (741).

10. The ultrasonic catheter device according to claim 8, wherein the inner annular surface of the third sealing ring (740) is provided with a sealing lip (742), the lip of the sealing lip (742) is arranged opposite to the adapter seat (710), an elastomer (7421) is arranged in the sealing lip (742), and the elastomer (7421) enables the inner lip (7422) of the sealing lip (742) to abut against the abutment shaft (730).

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