WO2018082556A1

WO2018082556A1 - Interventional medical device and ultrasonic developing assembly

Info

Publication number: WO2018082556A1
Application number: PCT/CN2017/108877
Authority: WO
Inventors: 张金华
Original assignee: 张金华
Priority date: 2016-11-02
Filing date: 2017-11-01
Publication date: 2018-05-11

Abstract

Provided is an interventional medical device, comprising a device body and an ultrasonic generator (2) connected to the device body and used for enabling the device body to transmit ultrasonic waves. Ultrasonic waves transmitted by the ultrasonic generator (2) can be conducted onto the interventional medical device, and thus the interventional medical device transmits ultrasonic waves with the same frequency. Compared with reflection of ultrasonic waves transmitted by an original ultrasonic probe in the prior art, the signal strength of the device body actively transmitting the ultrasonic waves is higher, and development of the medical device is clearer and more complete, thereby effectively improving the accuracy of identification of the position of the interventional medical device, greatly reducing various damages caused due to the fact that development is not clear, and effectively ensuring the medical safety. Further disclosed is an ultrasonic developing assembly using the interventional medical device.

Description

Interventional medical device and ultrasonic developing assembly

This application is required to be submitted to the China Patent Office on November 2, 2016, the application number is 201610944049.1, and the invention name is “an interventional medical device and ultrasonic imaging assembly”, and submitted to the Chinese Patent Office on November 2, 2016. The priority of the Chinese Patent Application No. 201621168257.9, entitled "Int.

Technical field

The present invention relates to the field of medical device manufacturing technology, and in particular to an interventional medical device and an ultrasonic imaging assembly.

Background technique

The so-called interventional medical device is a medical device that is inserted into the human body or the natural cavity through a surgical means for short-term treatment or examination, and is taken out after the treatment or examination. The medical instruments such as the puncture needle, the micro-catheter, and the guide wire are all interventional. The scope of medical devices.

Most interventional medical devices need to be developed during the intervention process in order to determine the exact position of the medical device. Taking the puncture needle as an example, it is necessary to apply a puncture needle when performing medical intervention or physical damage treatment on some lesions that have been clearly diagnosed. Puncture, in order to determine the position of the puncture needle, it is necessary to use an ultrasonic probe to capture the image of the puncture needle through the reflection of the ultrasonic wave through the surface of the puncture needle.

Since the ultrasonic probe detects that the puncture needle only relies on the ultrasonic wave reflected back from the surface of the puncture needle, the tip of the puncture needle has a small reflection area, so the ultrasonic signal reflected and fed back is weak, so the development resolution of the puncture needle tip is not ideal. This can easily lead to the doctor's inability to accurately determine the position of the tip of the needle during treatment, which makes treatment difficult.

Therefore, how to improve the development accuracy of the interventional medical device, so that the doctor can accurately determine the position of the medical device is a technical problem that is urgently needed to be solved by those skilled in the art.

Summary of the invention

One of the objects of the present invention is to provide an interventional medical device that can improve the development accuracy of an interventional medical device, thereby facilitating the doctor to accurately determine the position of the medical device and improve the safety of the operation.

Another object of the present invention is to provide an ultrasonic development including the above interventional medical device. Assembly.

To achieve the above object, an interventional medical device according to the present invention includes an instrument body and an ultrasonic generator connected to the instrument body and configured to emit ultrasonic waves.

Preferably, the instrument body is a puncture needle.

Preferably, the ultrasonic generator is further provided with an adjustment knob for adjusting the ultrasonic frequency, and a display screen for displaying the ultrasonic frequency currently emitted by the ultrasonic generator.

Preferably, the ultrasonic generator is a hand-held ultrasonic generator, and a front end of the ultrasonic generator is provided with a protrusion for mounting the puncture needle, and a tail portion of the puncture needle is fitted on the protrusion.

Preferably, the protrusion is in the shape of a truncated cone, and one end of the protrusion connected to the ultrasonic generator is larger than the other end of the same, and the tail of the puncture needle is adapted to the shape of the protrusion.

Preferably, the ultrasonic generator is a hand-held ultrasonic generator, and a front end of the ultrasonic generator is provided with a protrusion for mounting the puncture needle, and an outer surface of the protrusion is provided with an external thread, and the puncture The needle is screwed onto the projection by a mounting sleeve provided at its tail.

Preferably, the ultrasonic generator is a hand-held ultrasonic generator, and a front end of the ultrasonic generator is provided with a detachable snap cover, and a tail portion of the puncture needle is pressed against the ultrasonic wave by the buckle cover At the front end of the generator, the needle body of the puncture needle passes through the snap cover.

Preferably, the ultrasonic generator emits an ultrasonic wave having a frequency equal to that of the ultrasonic probe used to detect the apparatus body.

Preferably, the instrument body is a microcatheter or a guide wire.

The ultrasonic imaging assembly disclosed in the present invention includes an interventional medical device and an ultrasonic probe for detecting the position of the interventional medical device, and the interventional medical device is the interventional medical device disclosed in any of the above.

Since the interventional medical device disclosed in the present invention is connected to the ultrasonic generator, the ultrasonic wave emitted by the ultrasonic generator can be transmitted to the interventional medical device, thereby causing the interventional medical device to emit ultrasonic waves of the same frequency, compared with the present In the technique of reflecting the ultrasonic wave emitted by the original ultrasonic probe, the signal body of the device actively emitting ultrasonic waves in the invention has higher signal intensity, is more easily captured and detected by the ultrasonic probe, and the development of the medical device is clearer. Complete, which effectively improves the accuracy of positional identification of interventional medical devices, greatly reducing the lack of development due to unclear development The various damages effectively ensure the safety of medical care.

DRAWINGS

1 is a schematic structural view of an ultrasonic generator disclosed in an embodiment of the present invention;

2 is a schematic structural view of a puncture needle disclosed in an embodiment of the present invention;

3 is a schematic structural view of the ultrasonic generator and the puncture needle disclosed in the embodiment of the present invention;

FIG. 4 is a schematic diagram of the detection state of the probe for detecting the puncture needle by the ultrasonic probe disclosed in the embodiment of the present invention.

Among them, 1 is a puncture needle, 2 is an ultrasonic generator, 3 is an ultrasonic probe, 4 is a tissue, 11 is an administration port, 21 is a snap cover, 22 is an adjustment knob, and 23 is a display screen.

detailed description

One of the cores of the present invention is to provide an interventional medical device that can improve the development accuracy of the interventional medical device, thereby facilitating the doctor to accurately determine the position of the medical device and improve the safety of the operation.

Another core of the present invention is also to provide an ultrasonic developing assembly including the above interventional medical device.

The present invention will be further described in detail below in conjunction with the drawings and embodiments.

Referring to FIG. 3, an interventional medical device disclosed in an embodiment of the present invention includes an instrument body and an ultrasonic generator 2 connected to the instrument body. The ultrasonic generator 2 itself can emit ultrasonic waves, and is connected to the instrument body. The ultrasonic waves can be directly transmitted to the instrument body, so that the instrument body emits the same ultrasonic waves as the ultrasonic wave generator 2.

Since the ultrasonic wave can propagate in gas, liquid and solid, and the ultrasonic wave can be propagated whether it is metal or non-metal, the connection structure between the instrument body and the ultrasonic generator 2 is not limited, and the material of the connection position is also The connection structure of the two may be made of a material including a metal, an alloy, a ceramic, or the like, which is not limited in this application.

The interventional medical device disclosed in the above embodiment is connected to the ultrasonic generator 2, and the ultrasonic wave The ultrasonic waves emitted by the generator 2 can be transmitted to the interventional medical device, thereby causing the interventional medical device to emit ultrasonic waves of the same frequency, so the interventional medical device can be called an active interventional medical device, compared to the present In the prior art, in the ultrasonic wave emitted by the original ultrasonic probe 3, the signal intensity of the device body that actively emits ultrasonic waves in the above embodiment is higher, and is more easily captured and detected by the ultrasonic probe 3, and the development of the medical device is improved. It is also clearer and more complete, which effectively improves the accuracy of position recognition of interventional medical devices, greatly reduces various damages caused by unclear development, and effectively ensures medical safety.

It is not difficult to understand that as long as it is a medical device that needs to be intervened and developed by ultrasound, an ultrasonic generator 2 connected to itself can be provided under the guidance of the inventive concept, including but not limited to a puncture needle 1. Catheter or guide wire.

In the embodiment of the present invention, the puncture needle 1 is taken as an example for detailed description. Referring to FIG. 1 and FIG. 3, the ultrasonic generator 2 in this embodiment is further provided with an adjustment knob 22 for adjusting the ultrasonic frequency range, and displaying The display 23 of the currently transmitted ultrasonic frequency, which allows the frequency of the ultrasonic waves emitted by the puncture needle to be varied. It should be noted that, in fact, when the ultrasonic wave emitted by the puncture needle 1 coincides with the frequency of the ultrasonic wave emitted by the ultrasonic probe 3 for detection, the puncture needle 1 is most easily detected by the ultrasonic probe 3, and the puncture needle 1 is The development is also the clearest, and since the emission frequency of the ultrasonic generator 2 in the embodiment is adjustable, the doctor can adjust the emission frequency of the ultrasonic transmitter 2 to be emitted from the ultrasonic probe 3 according to the information displayed in the display screen. The frequency is the same, which makes the development work best.

The connection structure of the puncture needle 1 and the ultrasonic generator 2 can be variously. In the present embodiment, the ultrasonic generator 2 is a hand-held ultrasonic generator, and the front end of the ultrasonic generator 2 is provided with a convex for the puncture needle 1 to be mounted. The tail of the puncture needle 1 is fitted over the projection. In order to further optimize the solution, the protrusion of the front end of the ultrasonic generator 2 has a truncated cone shape, and the end of the protrusion connected to the ultrasonic generator 2 is larger than the other end of the ultrasonic generator 2, and correspondingly, the tail of the puncture needle 1 should be the same as the protrusion. A shape-fitted frustum sleeve.

In another embodiment of the present invention, the front end of the ultrasonic generator 2 is also provided with a projection for mounting the puncture needle 1, the outer surface of the projection is provided with an external thread, and the puncture needle 1 passes through a mounting sleeve provided at the tail thereof. The barrel is screwed onto the projection, meaning that the puncture needle 1 is screwed to the ultrasonic generator 2.

In addition, in the embodiment of the present invention, a manner of fastening connection is also disclosed, as shown in FIG. The ultrasonic generator 2 is a hand-held ultrasonic generator, and the front end thereof is provided with a detachable snap cover 21, and the tail portion of the puncture needle 1 is pressed against the front end of the ultrasonic generator 2 by the fastening cover 21, and the puncture needle 1 is The needle body passes through the snap cover 21 .

As shown in FIG. 2 and FIG. 3, after the puncture needle 1 is connected to the ultrasonic generator 1, in order to ensure normal administration or to feed the medical instrument into the puncture needle, the tail side wall of the puncture needle is also connected through a pipe. The drug delivery port, which is usually a hose. In fact, the tail of the puncture needle 1 is isolated to form the A zone and the B zone, the A zone serves as a connection, and the B zone serves as a medical device for injecting a drug or implanting a guide wire, and the drug delivery port can be used in addition to administration. The medical device is delivered to the patient for operation.

If the ultrasonic generator 2 is a fixed-frequency ultrasonic generator, it is preferable to make the ultrasonic wave emitted by the ultrasonic generator 2 coincide with the ultrasonic frequency emitted by the ultrasonic probe 3 for detecting the instrument body to achieve clarity. The purpose of development.

In addition, an embodiment of the present invention further discloses an ultrasonic imaging assembly, including an interventional medical device, and an ultrasonic detecting head 3 for detecting the position of the interventional medical device, wherein the interventional medical device is any of the above An interventional medical device disclosed in an embodiment.

The state of use of the ultrasonic developing assembly is as shown in FIG. 4 (not shown in the ultrasonic generator). Since the interventional medical device disclosed in the above embodiment is employed, the ultrasonic developing assembly should have the above-mentioned interventional medical device. The corresponding technical advantages will not be described in detail herein.

The interventional medical device and the ultrasonic development assembly of the present invention have been described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, and the description of the above embodiments is only to assist in understanding the method of the present invention and its core idea. It should be noted that those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the invention.

Claims

An interventional medical device characterized by comprising an instrument body and an ultrasonic generator (2) connected to the instrument body and for causing the device body to emit ultrasonic waves.
The interventional medical device according to claim 1, wherein the instrument body is a puncture needle (1), and an administration port is connected to a side wall of the puncture needle tail by a pipe.
The interventional medical device according to claim 2, characterized in that the ultrasonic generator (2) is further provided with an adjustment knob (22) for adjusting the ultrasonic frequency, and for displaying the ultrasonic frequency of the current emission. Display (23).
The interventional medical device according to claim 2, wherein the ultrasonic generator (2) is a hand-held ultrasonic generator, and a front end of the ultrasonic generator (2) is provided with the puncture needle ( 1) Mounted projection, the tail of the puncture needle (1) being fitted over the projection.
The interventional medical device according to claim 4, wherein said projection has a truncated cone shape, and said one end of said projection connected to said ultrasonic generator (2) is larger than the other end of itself The tail of the puncture needle (1) is adapted to the shape of the projection.
The interventional medical device according to claim 2, wherein the ultrasonic generator (2) is a hand-held ultrasonic generator, and a front end of the ultrasonic generator (2) is provided with the puncture needle ( 1) Mounted projection, the outer surface of the projection being provided with an external thread, the puncture needle (1) being screwed onto the projection by a mounting sleeve provided at its tail.
The interventional medical device according to claim 2, characterized in that the ultrasonic generator (2) is a hand-held ultrasonic generator, and the front end of the ultrasonic generator (2) is provided with a detachable snap cover (21), a tail portion of the puncture needle (1) is pressed against a front end of the ultrasonic generator (2) by the snap cover (21), and a needle body of the puncture needle (1) passes through the needle Fitting the cover (21).
The interventional medical device according to claim 1, characterized in that the ultrasonic wave emitted by the ultrasonic generator (2) and the ultrasonic frequency emitted by the ultrasonic probe (3) for detecting the body of the device equal.
The interventional medical device according to claim 1, wherein the instrument body is a microcatheter or a guide wire.
An ultrasonic developing assembly comprising an interventional medical device and for detecting the interventional medical treatment The ultrasonic probe (3) of the position of the treatment device, characterized in that the interventional medical device is the interventional medical device according to any one of claims 1-9.