CN116459022A

CN116459022A - Ultrasound guidance system

Info

Publication number: CN116459022A
Application number: CN202310491003.9A
Authority: CN
Inventors: 胡锦华; 林起航; 徐孙希
Original assignee: Suzhou Hengrui Hongyuan Medical Technology Co ltd
Current assignee: Suzhou Hengrui Hongyuan Medical Technology Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-07-21

Abstract

The present application relates to an ultrasound guidance system comprising a guide assembly and an ultrasound guidance catheter. The ultrasonic guiding catheter is at least partially arranged in the guiding assembly, the ultrasonic guiding catheter comprises a catheter body and an imaging assembly, the imaging assembly comprises a transducer assembly, the transducer assembly is arranged on the end face of the distal end of the catheter body, the ultrasonic guiding catheter is partially arranged in the guiding assembly, the transducer assembly is arranged on the end face of the distal end of the catheter body, so that the ultrasonic guiding catheter can be used for probing the blood vessel of the front section of the catheter in real time, after the guiding assembly is placed in the blood vessel and reaches a designated position, the ultrasonic guiding catheter stretches into the guiding assembly, the ultrasonic guiding catheter can be used for probing the blood vessel in front of the catheter, and the specific condition of the probed blood vessel can be transmitted to external ultrasonic equipment, so that medical staff can further know the specific condition of a patient, and surgical risk is reduced.

Description

Ultrasound guidance system

Technical Field

The application belongs to the technical field of intravascular puncture guidance, and particularly relates to an ultrasonic guidance system.

Background

Existing intravascular imaging catheters aim to provide detailed diagnostic information within the vessel to facilitate treatment within a stenosed vessel region, such as angioplasty, laser ablation, stent deployment, portal bypass, etc. For most of the current operations, the imaging catheter can only search the image around the vessel wall at the position of the catheter, and the vessel in front of the catheter cannot be searched. There is thus a great need for a guidance system that enables exploration of the anterior blood vessel.

Disclosure of Invention

The application provides an ultrasonic guiding system for solving the technical problem that an ultrasonic guiding catheter cannot probe a blood vessel in front of the catheter.

In order to solve the technical problems, one technical scheme adopted by the application is as follows: an ultrasound guidance system, comprising: a guide assembly; the ultrasonic guiding catheter is at least partially arranged in the guiding assembly, the ultrasonic guiding catheter comprises a catheter body and an imaging assembly, the imaging assembly comprises a transducer assembly, and the transducer assembly is arranged on the end face of the distal end of the catheter body.

According to an embodiment of the present application, the imaging assembly further comprises a signal transmitter, and the transducer assembly is connected to the signal transmitter.

According to an embodiment of the present application, the signal transmitter is disposed at a distal end of the catheter body.

According to an embodiment of the present application, the transducer assembly comprises a plurality of transducers, and the transducer array is distributed on an end face of the distal end of the catheter body.

According to one embodiment of the present application, the guide assembly comprises a guide tube through which the instrument passes and a retraction mechanism, a proximal end of the guide tube being connected to a distal end of the retraction mechanism, and the ultrasound guiding catheter being at least partially disposed within the guide tube.

According to one embodiment of the application, a first channel and a second channel are arranged in the guide tube, wherein the first channel is used for introducing a working instrument, and the second channel is used for introducing the ultrasonic guide catheter.

According to one embodiment of the present application, the working instrument includes a needle and a holder.

According to an embodiment of the present application, the outlet end of the distal end of the second channel is provided as a bevel.

According to one embodiment of the present application, a first opening is provided at the proximal end of the guide tube body, the first opening being in communication with the second lumen, the first opening being for introducing the ultrasound guiding catheter to the second lumen

According to an embodiment of the present application, the guide assembly further comprises a hemostatic member disposed adjacent to and distal to the first opening.

The beneficial effects of this application are: through setting up ultrasonic guidance pipe part in the direction subassembly, transducer assembly sets up in the terminal surface of pipe body distal end to realize that ultrasonic guidance pipe surveys the vessel of pipe front portion in real time, after the direction subassembly is put into the vessel and reaches the assigned position, stretches into the direction subassembly with ultrasonic guidance pipe in, ultrasonic guidance pipe not only can survey the vessel in the pipe the place ahead, can also transmit the specific condition of the intravascular that surveys to the external ultrasonic equipment, so that medical staff further knows the specific condition of patient, thereby reduce the operation risk.

Drawings

For a clearer description of the technical solutions in the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic elevation view of an embodiment of an ultrasound guidance system of the present application;

FIG. 2 is a schematic perspective view of an embodiment of an ultrasound guidance system of the present application;

FIG. 3 is a schematic perspective view of an ultrasound guiding catheter of an embodiment of an ultrasound guiding system of the present application;

FIG. 4 is a schematic perspective view of a distal end of an embodiment of an ultrasound guidance system of the present application;

fig. 5 is a schematic perspective view of a proximal end of an embodiment of an ultrasound guidance system of the present application.

Wherein: 10. an ultrasound guidance system; 11. a guide assembly; 111. a guide tube; 112. a retraction mechanism; 113. a first channel; 114. a second channel; 115. an inclined plane; 116. a first opening; 12. an ultrasound-guided catheter; 121. a catheter body; 122. an imaging assembly; 123. a transducer assembly; 125. a transducer; 14. a hemostatic member.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

It should be noted that, the definition of "proximal" and "distal" in this document is: "proximal" generally refers to the end of the medical device that is closest to the operator during normal operation, and "distal" generally refers to the end of the medical device that first enters the patient during normal operation.

Referring to fig. 1 to 3, fig. 1 is a schematic front view of an ultrasound guiding system according to an embodiment of the present application; FIG. 2 is a schematic perspective view of an embodiment of an ultrasound guidance system of the present application;

fig. 3 is a schematic perspective view of an ultrasound guiding catheter according to an embodiment of the ultrasound guiding system of the present application.

An embodiment of the present application provides an ultrasound guidance system 10, the ultrasound guidance system 10 comprising a guide assembly 11 and an ultrasound guidance catheter 12. Wherein the ultrasound guiding catheter 12 is at least partially disposed within the guiding assembly 11, the ultrasound guiding catheter 12 comprises a catheter body 121 and an imaging assembly 122, the imaging assembly 122 comprising a transducer assembly 123 disposed at an end face of the distal end of the catheter body 121.

As can be seen from the above structure, by arranging the ultrasound guiding catheter 12 at least partially in the guiding assembly 11 and arranging the transducer assembly 123 on the end face of the catheter body 121 of the ultrasound guiding catheter 12, the ultrasound guiding system 10 can probe the blood vessel at the front end of the catheter after the guiding assembly 11 is placed at the designated position in the interventional procedure, and the imaging assembly 122 can probe the condition of the blood vessel through the transducer assembly 123 and can transmit the detected signal to the ultrasound device outside the body. At this time, the specific condition in front of the blood vessel can be fed back in real time on the ultrasonic equipment, and medical staff can be further helped to know the condition of the patient, so that the operation risk is reduced.

It should be noted that, in other embodiments, the specific position of the ultrasound guiding catheter 12 within the guiding assembly 11 during the interventional procedure may be adjusted according to the specific conditions within the blood vessel. The ultrasound guiding catheter 12 may be disposed entirely within the guide assembly 11 or may be disposed partially within the guide assembly, without limitation.

In the embodiment of the present application, imaging assembly 122 includes a signal transmitter (not shown), and transducer assembly 123 is coupled to the signal transmitter. Specifically, when the ultrasound guiding system 10 is used for interventional operation, the ultrasound guiding catheter 12 is located in the guiding assembly 11, and when the ultrasound guiding catheter 12 is placed at a designated position, the transducer assembly 123 probes the blood vessel in front of the catheter body 121 and transmits the specific condition in the blood vessel detected by the transducer assembly 123 to the external ultrasound device through the signal transmitter, so that medical staff can more intuitively understand the condition in the blood vessel of the patient, and the risk of operation is reduced. The signal transmitter may perform signal transmission by bluetooth, and the signal transmitter may also perform signal transmission by wireless transmission, which is not limited herein.

Further, a signal transmitter is provided at the distal end of the catheter body 121. At this time, when the ultrasonic guiding catheter 12 is disposed in the guiding assembly 11 and placed at a designated position, the signal transmitter can receive the specific condition in the blood vessel in front of the catheter detected by the transducer assembly 123 at the first time, and then can rapidly transmit the specific condition to the external ultrasonic device, so that the whole process is more rapid, and more time is saved for the operation.

In an embodiment of the present application, transducer assembly 123 includes a plurality of transducers 125, with an array of transducers 125 distributed over the end face of the distal end of catheter body 121. The multiple transducers 125 simultaneously probe the blood vessel in the front end of the catheter, and the arrays of the transducers 125 are distributed, so that the transducer assembly 123 can capture images of the whole inner section of the blood vessel in the front end of the catheter in the interventional operation process, the detected area is larger, and the specific condition in the blood vessel can be accurately detected, so that the operation risk is further reduced.

Referring to fig. 4 to 5, fig. 4 is a schematic perspective view illustrating a distal end of an embodiment of an ultrasound guiding system according to the present application; fig. 5 is a schematic perspective view of a proximal end of an embodiment of an ultrasound guidance system of the present application.

In an embodiment of the present application, the guide assembly 11 comprises a guide tube 111 for passage of an instrument and a constriction mechanism 112, wherein a proximal end of the guide tube 111 is connected to a distal end of the constriction mechanism 112, and the ultrasound guide catheter 12 is at least partially disposed within the guide tube 111. When the guide assembly 11 is placed in a blood vessel, only the guide tube 111 is partially placed in the blood vessel, and when the ultrasonic guide catheter 12 is placed in the guide tube 111, the length of the contraction mechanism 112 can be adjusted according to the distance between medical staff and a patient, thereby facilitating the operation of the medical staff in the operation process. And meanwhile, the overall experience of medical staff is enhanced.

In the embodiment of the present application, a first channel 113 and a second channel 114 are provided in the guide tube 111. Wherein the first lumen 113 is used for introducing a working implement and the second lumen 114 is used for introducing the ultrasound guiding catheter 12. The arrangement of the first channel 113 and the second channel 114 can avoid the related interference between the ultrasonic guiding catheter 12 and the working instrument during the operation; on the other hand, medical staff can also quickly distinguish the effects of the first channel 113 and the second channel 114, thereby competing for more operation time for the patient.

Further, the working instrument includes a needle and a holder. When the working device is a lancet, the lancet may be a cutting type lancet or a cannula type lancet, without limitation. When the puncture needle is a cutting puncture needle, a small amount of living tissue can be obtained. In operation, the guide assembly 11 is inserted from the skin into the body, the ultrasound guide catheter 12 is passed into the body through the second lumen 114, an internal-external connection is established, the specific location of the tumor is determined, and then the cutting needle is passed into the body through the first lumen 113, and the tumor tissue is removed for biopsy to confirm the disease. When the needle is a cannula needle, the body-outside connection is established by inserting the needle into the blood vessel, the guide assembly 11 then being able to enter the blood vessel, and then positioning the ultrasound guiding catheter 12 in the second lumen 114 within the guide assembly 11. Medical personnel can view details in front of the blood vessel through the ultrasound-guided catheter 12 and transmit relevant information to an extracorporeal ultrasound system. When the working device is a stent, the stent can be placed in the body from the first channel 113 during the operation, so that the blood vessel blockage in the body can be expanded through the stent. For example, patients with esophageal cancer are often not fed, and can be fed after placement in a stent, thereby improving quality of life.

Further, the distal outlet end of the second channel 114 is provided as a bevel 115. The inclined plane 115 can reduce the caliber of the second cavity 114 better, so as to reduce the damage to the blood vessel and reduce the risk of operation as the guide assembly 11 goes deep.

In an embodiment of the present application, a first opening 116 is provided at the proximal end of the shaft of the guide tube 111, wherein the first opening 116 communicates with the second lumen 114. The first opening 116 is used to introduce the ultrasound guiding catheter 12 into the second lumen 114 so that the ultrasound guiding catheter 12 can smoothly enter the second lumen 114 through the first opening 116 and reach the outlet end along the second lumen 114.

In the present embodiment, the guide assembly 11 further includes a hemostatic member 14. Wherein the hemostatic member 14 is disposed adjacent the first opening 116 and distal to the first opening 116. The hemostatic member 14 is disposed to facilitate placement of the ultrasound guide catheter 12 into the guide assembly 11 from the first opening 116, and to effectively avoid placement of the ultrasound guide catheter 12 due to reflux of intravascular blood into the second lumen 114.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.

Claims

1. An ultrasound guidance system, comprising:

a guide assembly;

the ultrasonic guiding catheter is at least partially arranged in the guiding assembly, the ultrasonic guiding catheter comprises a catheter body and an imaging assembly, the imaging assembly comprises a transducer assembly, and the transducer assembly is arranged on the end face of the distal end of the catheter body.

2. The ultrasound guidance system of claim 1, wherein the imaging assembly further comprises a signal transmitter, the transducer assembly being coupled to the signal transmitter.

3. The ultrasound guidance system of claim 2, wherein the signal transmitter is disposed at a distal end of the catheter body.

4. The ultrasound guidance system of claim 1, wherein the transducer assembly includes a plurality of transducers, the transducer array being distributed on an end face of the distal end of the catheter body.

5. The ultrasonic guidance system of claim 1, wherein the guide assembly includes a guide tube through which the work implement passes and a retraction mechanism, a proximal end of the guide tube being coupled to a distal end of the retraction mechanism, the ultrasonic guidance catheter being at least partially disposed within the guide tube.

6. The ultrasound guidance system of claim 5, wherein a first lumen is provided in the guide tube for introducing a working instrument and a second lumen is provided for introducing the ultrasound guide catheter.

7. The ultrasonic guidance system of claim 5, wherein the work implement comprises a needle and a bracket.

8. The ultrasound guidance system of claim 6, wherein the distal exit end of the second lumen is configured as a bevel.

9. The ultrasound guidance system of claim 6, wherein a first opening is provided at the proximal end of the guide tube shaft, the first opening communicating with the second lumen, the first opening for introducing the ultrasound guidance catheter to the second lumen.

10. The ultrasound guidance system of claim 9, wherein the guide assembly further comprises a hemostatic member disposed adjacent to and distal to the first opening.