CN115154852B

CN115154852B - Anchor balloon catheter

Info

Publication number: CN115154852B
Application number: CN202210968628.5A
Authority: CN
Inventors: 胡军; 夏允辰; 李斌; 刘斌
Original assignee: Sonosemi Medical Co Ltd
Current assignee: Sonosemi Medical Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-07-14
Anticipated expiration: 2042-08-12
Also published as: CN115154852A

Abstract

The invention provides an anchoring saccule catheter, which relates to the technical field of medical appliances and comprises: the catheter comprises a catheter and an anchoring device, wherein a first balloon is arranged on the outer wall of the catheter; the anchoring device includes a deformation portion coaxially disposed with the catheter, a tubular structure contractible to be coaxial with the catheter, and an expanded structure deployable to expand radially outward. When the anchoring balloon catheter provided by the invention is used, the first balloon can be used for fixing the catheter once, and the anchoring device on the balloon catheter can be used for fixing the catheter twice, so that the risk of catheter displacement is reduced, and the accuracy of operation is improved.

Description

Anchor balloon catheter

Technical Field

The invention relates to the technical field of medical instruments, in particular to an anchoring balloon catheter.

Background

Balloon catheters are often used to dilate blood vessels in the treatment of cardiovascular diseases, but because the balloon completely occludes the blood vessel, the balloon is at risk of displacement due to the influence of blood pressure, and balloon displacement can further lead to surgical failure. For a shock wave balloon catheter with therapeutic effect, it is also necessary to connect an external power generator during use, so any slight pulling or moving of the wire during surgery may cause movement of the portion of the balloon catheter in the body.

Disclosure of Invention

The invention aims to provide an anchoring balloon catheter so as to relieve the technical problem that the balloon is easy to shift due to the influence of blood pressure or other dragging force on the existing balloon catheter.

An embodiment of the present invention provides an anchoring balloon catheter, including: the catheter comprises a catheter and an anchoring device, wherein a first balloon is arranged on the outer wall of the catheter; the anchoring device includes a deformation portion disposed coaxially with the catheter, which is collapsible into a tubular configuration coaxial with the catheter or which is expandable into an expanded configuration that expands radially outward.

Further, the deformation part is a pipe network structure woven by memory wires and is provided with a distal end and a proximal end, and the radial dimension of the deformation part is gradually reduced from the middle to the two ends; the anchoring device further comprises a first pipe body, the distal end of the deformation part is fixed on the outer wall of the first pipe body, and the proximal end of the deformation part is movably sleeved on the outer wall of the first pipe body; the catheter and the anchoring device are sleeved with each other, and the first balloon can be expanded outwards along the radial direction; the proximal end of the deformation portion is driven to move axially along the first tubular body, which may cause the deformation portion to contract into a tubular configuration or to expand into an expanded configuration that expands radially outwardly.

Further, the anchoring device further comprises a second tube body, wherein the first tube body penetrates from the proximal end of the second tube body, penetrates from the distal end of the second tube body, and penetrates out of the second tube body to the deformation part; the proximal end of the deformation part is connected with the second pipe body, and the second pipe body is moved relative to the axial direction of the first pipe body, so that the deformation part can be driven to shrink into a tubular structure or expand into an expansion structure which expands outwards along the radial direction.

Further, the anchoring device further comprises a locking mechanism, wherein the locking mechanism comprises a locking head and a locking cap, and the locking head is arranged on the outer wall of the first pipe body close to the proximal end; the locking cap is arranged at the proximal end of the second tube body; the locking head and the locking cap can be fixedly connected, so that the first pipe body and the second pipe body are relatively fixed.

Further, an external thread is arranged on the outer wall of the locking head, the locking cap is provided with an inner cavity, an internal thread is arranged on the inner wall of the locking cap, and the internal thread and the external thread are mutually matched.

Further, the anchoring balloon catheter further comprises a buckle, the buckle is cylindrical and elastic, a notch which penetrates from the inner cavity to the outside and axially extends to the two ends of penetration is formed in the side wall of the buckle, the width of the notch is smaller than the outer diameter of the first tube body, and the buckle is used for clamping the first tube body between the locking cap and the locking head in the inner cavity from the notch.

Further, the anchoring device further comprises a second pipe body and a third pipe body, and a first connecting part is arranged at the position, close to the far end, of the first pipe body; the second pipe body, the deformation part and the third pipe body are sequentially connected from the proximal end to the distal end to form a coaxial tubular structure; the third pipe body is provided with a second connecting part which can be fixedly connected with the first connecting part; the first pipe body penetrates from the proximal end of the second pipe body, sequentially passes through the second pipe body and the deformation part, and is connected with the third pipe body through the fixed connection between the first connection part and the second connection part, so that the distal end of the deformation part is fixed on the outer wall of the first pipe body; the first pipe body is axially moved relative to the second pipe body, so that the third pipe body can be driven to move relative to the second pipe body, and the deformation part is driven to shrink into a tubular structure or expand into an expansion structure which expands outwards along the radial direction.

Further, the first connecting part is an external thread arranged on the outer wall of the first pipe body; the second connecting part is an internal thread arranged on the inner wall of the third pipe body.

Further, the anchoring device further comprises at least one traction wire, and one end of the traction wire is fixedly connected with the proximal end of the deformation part; the other end extends to the proximal end of the first tube body, and the deformed portion can be driven to shrink into a tubular structure or expand into an expanded structure which expands outwards in the radial direction by operating the traction wire.

Further, the radial dimension of the anchoring device is smaller than the inner diameter dimension of the catheter, and the anchoring device penetrates from the proximal end of the catheter to the deformation part to the outside of the catheter; or alternatively, the first and second heat exchangers may be,

the radial dimension of the catheter is smaller than the inner diameter dimension of the first catheter body, and the catheter penetrates from the proximal end of the first catheter body to the first balloon to the outside of the first catheter body.

When the anchoring balloon catheter provided by the embodiment of the invention is used, the first balloon can be utilized to fix the catheter once, and the anchoring device on the balloon catheter can be utilized to fix the catheter twice, so that the risk of displacement of the catheter is reduced. The balloon catheter is not easily displaced in the body due to slight pulling or moving of the wire and other devices in the operation process, so that the operation accuracy is improved; according to the invention, the deformation part of the anchoring device can be locked by arranging the locking device, and the length and the expansion size of the deformation part can be conveniently adjusted by adjusting the screwing position between the locking head and the locking cap in the locking device, so that the anchoring balloon catheter provided by the invention is suitable for operation of different tube cavities; the expansion diameter of the deformation part can be further accurately controlled by arranging the buckles with different specifications.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an anchoring balloon catheter provided by the invention.

Fig. 2 is a schematic view of the assembly of an anchoring balloon catheter according to a first embodiment of the invention.

Fig. 3 is a schematic view of the structure of the anchoring device according to the first embodiment of the present invention.

Fig. 4 is a bottom view of a clasp according to a second embodiment of the invention.

Fig. 5 is a schematic view showing the structure of an anchoring device according to a third embodiment of the present invention.

Fig. 6 is a radial cross-sectional view of a first tubular body in a third embodiment of the invention.

Fig. 7 is a schematic structural view of a first pipe body according to a fourth embodiment of the present invention.

Fig. 8 is a schematic structural view of a second pipe body according to a fourth embodiment of the present invention.

Fig. 9 is a schematic view showing an assembled structure of a fourth embodiment of the anchoring device according to the present invention.

Fig. 10 is a schematic view of the structure of an anchoring balloon catheter according to a fifth embodiment of the invention.

Fig. 11 is a schematic view showing the structure of an anchoring balloon catheter according to a ninth embodiment of the present invention.

Icon: 10-anchoring a balloon catheter; 100-catheters; 110-a first balloon; 200-anchoring means; 210-a deformed portion; 220-a first tube; 221-drawing a wire lumen; 222-external threads; 230-a second tube; 240-a third tube; 300-locking mechanism; 310-locking head; 320-locking cap; 400-clamping buckle; 410-notch; 500-a second balloon.

Detailed Description

The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

For ease of description, the balloon catheter is defined herein as having a front end at the end distal from the operator and a rear end at the end proximal to the operator after insertion into the patient.

As shown in fig. 1, the present invention provides an anchoring balloon catheter comprising: a catheter 100 and an anchoring device 200, wherein an inflatable first balloon 110 is arranged on the outer wall of the catheter 100; the anchoring device 200 includes a deformation portion 210, the deformation portion 210 being coaxially disposed with the catheter 100 and being positionable at either a front end or a rear end of the first balloon 110, the deformation portion 210 having a contracted state and an expanded state, the deformation portion 210 being contracted into a tubular configuration coaxial with the catheter 100 when in the contracted state; when in the deployed state, the deformed portion 210 expands radially outward into a spherical or ellipsoidal configuration so as to anchor within a vessel.

When the anchoring balloon catheter provided by the invention is used, the first balloon 110 can be abutted against the inner wall of a blood vessel after being inflated, so that the fixation and subsequent treatment of the catheter 100 are realized, and the deformed part 210 of the anchoring device 200 can be abutted against the inner wall of the blood vessel after being inflated, so that the fixation reliability of the catheter 100 is further enhanced, and the risk of displacement of the catheter 100 is reduced. The secondary fixation of the balloon catheter is realized through the first balloon 110 and the deformation part 210, and the balloon catheter is not easily displaced in the body due to slight pulling or moving of the wire and other devices in the operation process, so that the operation accuracy is improved.

In the present invention, the deformation portion 210 may be directly provided on the outer wall of the catheter 100; and the pipe body can be arranged on the outer wall of other pipe bodies, and then the pipe body is connected with the pipe 100 or sleeved with the pipe 100 to form a coaxial integral structure with the pipe 100.

The deformation portion 210 may be an inflatable balloon or a mesh structure woven from memory wires.

In one embodiment of the present invention, the deformation portion 210 is woven from memory wires. Specifically, the memory metal wires are woven into a net pipe structure and then sleeved on a shaping mould, and the net pipe structure is shaped into an expanded net disk structure through heat treatment. The deformed portion 210 after heat treatment is stretched from both ends to be a net pipe structure, and after the applied tension is removed, the deformed portion 210 can be restored to a net disk structure after shaping.

In another embodiment of the present invention, the deformation portion is a pipe network structure woven by memory wires and is disposed on an outer wall of the catheter. Specifically, the deformation part is located on the outer wall of the catheter at the distal end of the first balloon, one end of the deformation part is fixed on the outer wall of the catheter, the other end of the deformation part is movably sleeved on the catheter, and the contraction and expansion of the deformation part can be realized by axially moving the movable end of the deformation part along the catheter.

Preferably, the distal end of the deformation part is fixedly connected to the outer wall of the catheter, the proximal end is movably sleeved on the outer wall of the catheter, the balloon catheter further comprises a traction wire, one end of the traction wire is fixed to the proximal end of the deformation part, the other end of the traction wire penetrates through the proximal end of the balloon catheter, and the contraction and expansion of the deformation part can be realized by pulling or loosening the traction wire.

First embodiment

In the first embodiment of the present invention, as shown in fig. 2 and 3, the anchoring device 200 further includes a first pipe 220 and a second pipe 230, and the outer diameter of the first pipe 220 is slightly smaller than the outer diameter of the second pipe 230; the deformation portion 210 is a pipe network structure woven by memory wires, and is sleeved on the outer wall of the near front end of the first pipe body 220, the radial dimension of the deformation portion is contracted to be the same as the outer diameter of the first pipe body along the axial direction towards both ends, the distal end of the deformation portion 210 is fixedly connected to the outer wall of the first pipe body 220, and the near end is movably sleeved on the outer wall of the first pipe body 220; the second tube body 230 is sleeved outside the first tube body 220 from the distal end of the first tube body 220, and the distal end thereof is connected with the proximal end of the deformation portion 210; the second tube body 230 is moved axially and proximally along the first tube body 220, so that the proximal end of the deformation portion 210 is driven to move in the proximal direction of the first tube body 220, and the deformation portion 210 is contracted into a mesh tube structure; the second tube body 230 is moved axially and distally along the first tube body 220, and the distal end of the second tube body 230 pushes the proximal end of the deformation portion 210 to move in the distal direction of the first tube body 220, so that the deformation portion is unfolded into a net-disc structure. The radial dimension of the expanded deformed portion can be adjusted by the length of the second tube 230 moving along the axial direction of the first tube 220, so that the anchoring balloon catheter provided by the invention can adapt to various lumen treatments with different dimensions.

There are various ways of connecting the distal end of the second tube 230 to the proximal end of the deformed portion 210.

In this embodiment, the proximal end of the deformation portion 210 is fixedly connected to the distal end of the second tube 230 by a fixing wire.

In an alternative embodiment of the present invention, the inner diameter of the distal end port of the second tube body 230 is smaller than the inner diameter of the main body portion thereof, and is larger than the radial dimension of the distal end of the deformation portion 210, but slightly smaller than the radial dimension of the proximal end of the deformation portion 210. When the second tube body 230 is moved axially and proximally along the first tube body 220, the distal end port of the second tube body 230 is clamped at the proximal end of the deformation portion 210, so as to drive the deformation portion 210 to axially stretch; when the second tube body 230 is moved axially and distally along the first tube body 220, the proximal pulling force of the distal end port of the second tube body 230 on the deformation portion is gradually removed, and the deformation portion 210 is expanded into a net-disc structure under the action of the self deformation force.

Further, the anchoring balloon catheter further comprises a locking mechanism 300, wherein the locking mechanism comprises a locking head 310 and a locking cap 320 matched with the locking head, and the locking head 310 is arranged on the outer wall of the first tube body 220 close to the proximal end; the locking cap 320 is connected to the proximal end of the second tube 230; the locking head 310 and the locking cap 320 may be fixedly connected, so that the second pipe body 230 and the first pipe body 220 are relatively fixed. The locking head and the locking cap provided in this embodiment may form a locking mechanism, and the fixing of the pipe network structure of the deformation portion 210 may be achieved through the fixed connection of the locking head 310 and the locking cap 320, usually before the operation starts, so as to facilitate the operation.

Further, the locking head 310 is provided with external threads on an outer wall thereof, the locking cap 320 is provided with an inner cavity, and an internal thread is provided on an inner wall thereof, and the internal thread is matched with the external threads. When the proximal end of the second tube 230 is gradually close to the proximal end of the first tube 220, the locking cap 320 and the locking head 310 are gradually screwed; when the locking cap 320 and the locking head 310 are gradually unscrewed, the second tube body 230 is gradually moved in a distal direction along the axial direction of the first tube body 220. This solution facilitates control of the release length of the release rate of the deformation portion 210, facilitating the surgical operation.

In this embodiment, the deformation portion 210 is located at the front end of the first balloon 110. Specifically, after the second tube body 230 is sleeved outside the first tube body 220 to form the anchoring device 200, the anchoring device 200 is inserted from the proximal end of the catheter 100 to the deformation portion 210 to be inserted from the distal end of the catheter 100, so that the catheter 100 and the anchoring device 200 can be connected in a mounted manner.

The anchoring device 200 is provided with a lumen extending to the distal end in the axial direction, and is used for threading a guide wire, performing functions such as body fluid aspiration or drug delivery, and the like. Therefore, a first lumen penetrating along the axial direction is provided in the first tube 220, and a first through hole communicating with the first lumen is provided in the locking head 310; a second lumen extending axially is provided in the second tube 230, and the inner cavity of the locking cap 320 is communicated with the second lumen.

Second embodiment

With continued reference to fig. 1, a second embodiment of the present invention provides another anchoring balloon catheter 10, differing from the first embodiment in that the present embodiment anchoring device 200 does not include a second tubular body, and control of the contraction and expansion of the deformed portion 210 is achieved by the catheter 100; the locking cap 320 is disposed at the proximal end of the catheter 100. Compared with the technical scheme that the first embodiment is provided with the second pipe body, the anchoring balloon catheter is simpler in structure, the radial size of the balloon catheter can be effectively reduced, and when the locking head is fixedly connected with the locking cap, the anchoring balloon catheter can be connected into an integral structure, so that the operation is facilitated.

Further, referring to fig. 1 and 4, the anchoring balloon catheter 10 further includes a buckle 400, where the buckle 400 is cylindrical and elastic, and has a notch 410 on a side wall extending from the inner cavity to the outside and extending axially to two ends of the through, and the width of the notch 410 is smaller than the outer diameter of the first tube 220, and the buckle 400 is used to clamp the first tube between the locking cap 320 and the locking head 310 from the notch 410 in the inner cavity. The present solution provides a clasp 400 for defining the distance between the locking cap 320 and the locking head 310, thereby controlling the deployment amplitude of the deformed portion 210.

In operation, when the locking cap 320 is completely separated from the locking head 310 and the deformed portion 210 is unfolded to a proper diameter, the notch 410 of the buckle 400 is aligned with the first tube 220, and the first tube 220 is clamped in the inner cavity of the buckle 400, so that the buckle 400 plays a limiting role.

In this embodiment, the number of the buckles 400 may be plural, the plurality of buckles 400 may have different lengths, and different buckles 400 may be selected to be clamped between the locking cap 320 and the locking head 310, so that the deformed portion 210 may have different radial expansion dimensions, thereby being suitable for human body lumens with different inner diameters.

In particular, the different distance lengths between the locking cap 320 and the locking head 310 correspond to the different radial dimensions of the deformed portion 210 when deployed. In this embodiment, different fastening lengths are designed according to the deformation dimensions of the deformed portion 210 when being unfolded, and the radial dimensions of the deformed portion can be conveniently adjusted by selecting the fastening 400.

Third embodiment

Referring to fig. 5 and 6, a third embodiment of the present invention provides an anchoring balloon catheter, the anchoring device includes a first tube 220 and a deformation portion 210 disposed near a distal end of the first tube 220, the deformation portion 210 having a tubular mesh structure woven by memory wires, and the distal end thereof being shrunk and fixed on an outer wall of the first tube 220; the proximal end thereof is movably sleeved on the first pipe body 220 after being contracted. The anchoring balloon catheter provided in this embodiment further includes three traction wires (not shown in the figure), and three traction wire lumens 221 penetrating to the positions of the deformation portions 210 are provided in the sidewall of the first tube 220; the distal ends of the three traction wires are respectively and fixedly connected with the proximal ends of the deformation portion 210, the proximal ends of the three traction wires are respectively inserted into the proximal ends of the first tube 220 through the traction wire cavities 221, and the deformation portion 210 can be driven to axially move along the first tube 220 by operating the traction wires from the proximal ends of the first tube 220, so as to adjust the unfolding form of the deformation portion 210.

In the present invention, the number of the traction wires may be plural, and the number of the traction wire cavities 221 corresponds to the number of the traction wires one by one. The traction wire cavities are uniformly distributed in the pipe wall of the first pipe body 220 along the circumferential direction, and each traction wire is positioned in an independent traction wire cavity 221, so that the stability of the forward and backward movement is ensured.

Fourth embodiment

Referring to fig. 7 to 9, the anchoring balloon catheter according to the fourth embodiment of the present invention is different from the first embodiment in that the anchoring device further includes a third tube 240, and the second tube 230, the deformation portion 210 and the third tube 240 are sequentially connected from the proximal end to the distal end to form a coaxial tubular structure; an internal thread (not shown) is provided on the inner wall of the third tube 240, an external thread 222 is provided on the outer wall of the proximal end of the first tube 220, and the external thread 222 is matched with the internal thread on the inner wall of the third tube 240; penetrating the distal end of the first tube 220 from the proximal end of the second tube 230, sequentially through the second tube 230 and the deformed portion 210, until being spirally connected with the third tube 240; moving the first tube body along the axial direction relative to the second tube body 230 can drive the third tube body 240 to move relative to the second tube body 230, so as to adjust the unfolding form of the deformed portion.

In yet another alternative embodiment of the present invention, the first pipe body and the third pipe body are fixedly connected by a clamping manner.

Fifth embodiment

Referring to fig. 10, the fifth embodiment of the present invention provides an anchoring balloon catheter, which is different from the first embodiment in that the deformation portion 210 is located at the proximal end of the first balloon 110 in this embodiment. Specifically, the outer diameter of the catheter 100 is smaller than the inner diameter of the first tube, and the distal end of the catheter 100 is threaded from the proximal port of the first tube 220 until the first balloon 110 is threaded out from the distal port of the first tube 220.

Sixth embodiment

This embodiment differs from the third embodiment only in that the outer diameter of the catheter is smaller than the inner diameter of the first tube, and the distal end of the catheter is threaded from the proximal end port of the first tube until the first balloon is threaded out from the distal end port of the first tube, such that the deformed portion is located proximal to the first balloon.

Seventh embodiment

The difference between this embodiment and the fourth embodiment is only that the outer diameter of the catheter is smaller than the inner diameter of the first tube, and the distal end of the catheter is threaded from the proximal end port of the first tube until the first balloon is threaded from the distal end port of the first tube, so that the deformed portion is located at the proximal end of the first balloon.

Eighth embodiment

The difference between this embodiment and the fourth embodiment is that the anchoring balloon catheter does not include the first tube body, the outer diameter of the catheter is smaller than the inner diameter of the second tube body, the outer thread matched with the inner thread of the third tube body is provided on the tube wall of the proximal end of the first balloon, the distal end of the catheter penetrates from the proximal end port of the first tube body until the first balloon penetrates from the distal end port of the first tube body, and the outer thread on the outer wall of the first balloon is screwed with the inner thread of the second tube body, and the third tube body can be driven to move relative to the second tube body by moving the catheter relative to the second tube body, so that the unfolding form of the deformation part can be adjusted.

Ninth embodiment

As shown in fig. 11, in this embodiment, the deformation portion is a second balloon 500 disposed on the outer wall of the catheter 100, and the second balloon 500 is located at the distal end of the first balloon. In the present invention, the second balloon 500 may be a compliant or non-compliant balloon. In this embodiment, the second balloon 500 is a compliant balloon, and a liquid filling cavity communicated with the inner cavity of the second balloon is provided on the wall of the catheter 100, and when in use, a contrast medium can be injected into the inner cavity of the second balloon 500 through the liquid filling cavity, and the expansion degree and anchoring condition of the second balloon 500 can be observed under contrast.

The second balloon 500 may be disposed at the proximal or distal end of the first balloon 110 to accommodate different vascular conditions. In this embodiment, the second balloon 500 is disposed at the distal end of the first balloon 110.

The first balloon 110 and the second balloon 500 may be inflated with a single inflation channel or may be inflated with different inflation channels.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. An anchoring balloon catheter, comprising: the catheter and the anchoring device are arranged in a plane,

a first saccule is arranged on the outer wall of the catheter;

the anchoring device comprises a first pipe body, a second pipe body, a deformation part and a locking mechanism, wherein the deformation part is a pipe network structure woven by memory metal wires and is provided with a distal end and a proximal end, and the radial dimension of the deformation part is gradually reduced from the middle to the two ends; the distal end of the deformation part is fixed on the outer wall of the first pipe body, and the proximal end is movably sleeved on the outer wall of the first pipe body; the inner diameter of the distal end port of the second tube body is smaller than the inner diameter of the main body part of the second tube body, larger than the radial dimension of the distal end of the deformation part and slightly smaller than the radial dimension of the proximal end of the deformation part; the first pipe body penetrates from the proximal end of the second pipe body and penetrates out from the distal end until the deformation part penetrates out of the second pipe body, and the distal end port of the second pipe body is clamped at the proximal end of the deformation part;

the locking mechanism comprises a locking head and a locking cap, the locking head is arranged on the outer wall of the first pipe body close to the proximal end, and an external thread is arranged on the outer wall of the locking head; the locking cap is arranged at the proximal end of the second pipe body and is provided with an inner cavity, an inner thread is arranged on the inner wall of the locking cap, and the inner thread and the outer thread are mutually matched;

the guide pipe and the anchoring device are mutually sleeved, the locking cap is rotated relative to the locking head, and the second pipe body can axially move relative to the first pipe body, so that the deformation part is driven to shrink into a tubular structure or expand into an expansion structure which expands outwards in the radial direction.

2. The anchoring balloon catheter according to claim 1, further comprising a clip, wherein the clip is cylindrical and elastic, has a notch extending axially from the inner cavity to the outside and extending axially to the ends of the penetration, and the notch has a width smaller than the outer diameter of the first tube, and the clip is used to clip the first tube between the locking cap and the locking head in the inner cavity from the notch.

3. The anchoring balloon catheter of claim 1, wherein the anchoring device radial dimension is less than the catheter inner diameter dimension, the anchoring device passing in from a proximal end of the catheter, out from a distal end, to the deformation portion passing out to the outside of the catheter; or alternatively, the first and second heat exchangers may be,