CN210277213U

CN210277213U - Ultrasonic guide needle

Info

Publication number: CN210277213U
Application number: CN201920804733.9U
Authority: CN
Inventors: 曹钰华; 简小华
Original assignee: Suzhou Xisheng Technology Co ltd
Current assignee: Suzhou Institute of Biomedical Engineering and Technology of CAS
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-04-10
Anticipated expiration: 2029-05-30

Abstract

The utility model relates to an ultrasonic guide needle, which comprises a cylindrical support body with a near end and a far end, a forward-looking detection unit arranged on the far end face of the support body, a side-looking detection unit arranged on the outer peripheral surface of the support body and close to the far end of the support body, and a connection unit for electrically connecting the forward-looking detection unit and the side-looking detection unit with an external system host, wherein a working channel is also arranged in the support body; the utility model discloses an supersound guide needle can effectively solve current supersound guide piercing depth and can only guide in external control, can't carry out the not enough of high frequency high resolution formation of image to the degree of depth tissue, and it utilizes integrated foresight to survey, look sideways at and surveys and working channel, both can form images the preceding region of needle body, also can form images the needle body and look sideways at the direction to can realize in real time to puncture/injection direction and precision guide observation, also can avoid the damage to peripheral tissue.

Description

Ultrasonic guide needle

Technical Field

The utility model relates to an ultrasonic guide needle.

Background

At present, puncture sampling, tube placement, liquid extraction, drug injection, nerve block and the like under the guidance of ultrasound are advanced diagnosis and treatment technologies which are increasingly popularized in clinic at present. In the existing method, an external ultrasonic probe (B-ultrasonic) is mostly used for imaging a lesion area needing to be punctured or an anesthetized nerve, then a puncture needle is inserted, and the insertion position of the puncture needle is observed in real time by using ultrasonic imaging to realize sampling or blocking of a target; due to the adoption of the external ultrasonic probe, the penetration depth is shallow, so that the deep tissue fine structure imaging (such as nerves) cannot be carried out by using a high-resolution high-frequency ultrasonic probe. Although there are proposals to optimize the structure of the reflecting portion of the puncture needle, it is difficult to accurately position the reflecting portion in a region where the puncture needs to be made deeper or the puncture portion needs to be made smaller.

In addition, there are some miniaturized ultrasonic probes (such as patent 201210063587.1) or a miniature ultrasonic probe (such as patent 201710084155.1) built in the puncture needle for puncture guidance, but the probe and the puncture needle are still separated, and the detection of lesion with small operation space, such as intracranial puncture, is inconvenient to operate; the latter is directly integrated, but has no working cavity, can only puncture but can not perform sampling, injection and other operations, and only has a forward-looking image, and can not perform relative positioning, such as how much depth and angle of puncture, and can not observe peripheral tissues.

Disclosure of Invention

The utility model aims to solve the technical problem that the prior art is not enough to be overcome, and an ultrasonic guide needle is provided.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:

the utility model provides an supersound guide needle, the guide needle is including the columniform supporter that has near-end and distal end, locate look-ahead detecting element on the distal end terminal surface of supporter, locate on the outer peripheral face of supporter and be close to the detecting element that looks sideways at of supporter distal end, with look-ahead detecting element with look sideways at the connecting element that detecting element and external system host computer electricity communicate, working channel has still been seted up in the supporter, working channel follows the length extending direction of supporter runs through the supporter, just working channel is provided with one at least.

Preferably, the cross-sectional profile of the working channel in the direction of its length extension is circular, or rhomboidal, or elliptical.

Preferably, the working channel is provided with a plurality of working channels, and the cross-sectional areas of the plurality of working channels in the length direction are the same or different.

Preferably, the forward looking detection unit comprises a plurality of first miniature ultrasonic probes, and the plurality of first miniature ultrasonic probes are arrayed into one or more groups.

Preferably, the plurality of first miniature ultrasonic probes are arranged in a linear array, or in a ring array, or in a planar array, or in a convex array.

Preferably, the side-view detection unit includes a plurality of second micro ultrasonic probes, and the plurality of second micro ultrasonic probes are arrayed in one or more groups.

Preferably, the plurality of second miniature ultrasonic probes are arranged in a linear array, or in a ring array, or in a planar array, or in a convex array.

Preferably, the first and second micro ultrasonic probes are made of piezoelectric ceramics, or piezoelectric single crystals, or 1-3 type piezoelectric composite materials, or piezoelectric thin films, or CMUTs.

Preferably, the connection unit includes a connection cable electrically connected to the forward-looking detection unit or the side-looking detection unit, and a connector connected to the connection cable, the connection cable is embedded in the support, and the connector is disposed on the outer peripheral surface of the support.

Preferably, the support body comprises a filling body and an outer shell fixedly supported on the periphery of the filling body, and the filling body is made of epoxy resin or rubber or UV glue.

Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:

the utility model discloses an supersound guide needle can effectively solve current supersound guide piercing depth and can only guide in external control, can't carry out the not enough of high frequency high resolution formation of image to the degree of depth tissue, and it utilizes integrated foresight to survey, look sideways at and surveys and working channel, both can form images the preceding region of needle body, also can form images the needle body and look sideways at the direction to can realize in real time to puncture/injection direction and precision guide observation, also can avoid the damage to peripheral tissue. Can conveniently puncture deep tissues and pore structure areas which are difficult to pass through in the past, and can greatly improve the flexibility, accuracy and application range of puncture diagnosis and treatment.

Drawings

FIG. 1 is a schematic side sectional view of the introducer needle of the present invention;

fig. 2 is a schematic view of the main structure of the guide needle of the present invention (the first micro-ultrasonic probes are arranged in a linear array to form two groups, and the working channel has one);

fig. 3 is a schematic view of the main structure of the guide needle of the present invention (the first micro-ultrasonic probes are arranged in a linear array to form two groups, and the working channel has two channels);

fig. 4 is a schematic view of the main structure of the guide needle of the present invention (the first micro-ultrasonic probes are arranged in a planar array, and one working channel is provided);

fig. 5 is a schematic view of the main structure of the guide needle of the present invention (the first micro-ultrasonic probes are arranged in a planar array, and the number of the working channels is three);

wherein: 10. a working channel; 11. an outer housing; 100. a filler; 121. connecting a cable; 122. a connector; t1, a first miniature ultrasound probe; t2, second miniature ultrasound probe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 5, an ultrasonic introducer needle comprises a cylindrical support body having a proximal end and a distal end (the proximal end is an end close to a user and used for holding operation by a hand, and the proximal end is located outside a tissue to be inserted when in use; the distal end represents an end inserted into the tissue when in use), a forward-looking detecting unit arranged on the distal end surface of the support body, a side-looking detecting unit arranged on the outer peripheral surface of the support body and close to the distal end of the support body, and a connecting unit for electrically connecting the forward-looking detecting unit and the side-looking detecting unit with an external system host;

specifically, the support body comprises a filling body 100 and an outer shell 11 fixedly supported on the periphery of the filling body 100, wherein the filling body 100 is made of epoxy resin or rubber or UV glue; the outer case 11 is made of a material having a certain hardness and a supporting shape, such as stainless steel or plastic. The diameter of the needle can be the same as the diameter of the head and the tail, and the head can be slightly smaller (the far end) so as to better perform the puncture operation.

Further, the forward looking detection unit includes a plurality of first micro ultrasonic probes t1, and the plurality of first micro ultrasonic probes t1 are arrayed in one or more groups. The plurality of first micro ultrasonic probes t1 are arranged in a linear array, a circular array, a planar array, or a convex array. Linear arrays, corresponding to lines on the distal surface (as shown in fig. 2 and 3); the probe array is in a ring shape array, which is equivalent to a shape of a circular ring arranged on the distal end surface, the planar array is arranged in a planar shape (as shown in fig. 4 and 5), and the convex shape is a shape of a plurality of probes arranged and gathered together to form a convex.

The front end of the first miniature ultrasonic probe t1 is provided with a protective layer, so that the probe is protected from being damaged in the insertion process, and meanwhile, the subsequent clinical disinfection treatment is facilitated, and the central frequency range of the first miniature ultrasonic probe t1 is (> 0.5 MHz); in addition, the first miniature ultrasonic probe t1 may employ a high-frequency ultrasonic probe for high-resolution identification of a target tissue structure. The material of the first micro ultrasonic probe t1 may be piezoelectric ceramic, or piezoelectric single crystal, or 1-3 type piezoelectric composite material, or piezoelectric film, or CMUT, etc.

Further, the side-view detection unit includes a plurality of second micro ultrasonic probes t2, and the plurality of second micro ultrasonic probes t2 are arrayed in one or more groups. The second ultrasonic probes t2 are arranged in a linear array (the linear arrangement represents a linear arrangement around the outer periphery of the support, and the linear arrangement may be a closed state or a non-closed state), or in a circular array (the circular arrangement represents a circular arrangement), or in a planar array (the planar arrangement represents a curved arrangement around the outer periphery of the support), or in a convex array (the convex arrangement represents a convex arrangement formed by arranging a plurality of probes together).

The front end of the second miniature ultrasonic probe t2 is provided with a protective layer, so that the probe is protected from being damaged in the insertion process, the subsequent clinical disinfection treatment is facilitated, and the central frequency range of the second miniature ultrasonic probe t2 is (> 0.5 MHz); in addition, the second miniature ultrasonic probe t2 may employ a high-frequency ultrasonic probe for high-resolution identification of the target tissue structure. The material of the second micro ultrasonic probe t2 may be piezoelectric ceramic, or piezoelectric single crystal, or 1-3 type piezoelectric composite material, or piezoelectric film, or CMUT, etc.

In this example, a working channel 10 is further formed in the support body, the working channel 10 penetrates the support body in the longitudinal extension direction of the support body, and the working channel 10 is a working channel 10 for passing a puncture needle, a tissue puncture sampler, a puncture needle, or the like. The cross-sectional profile of working channel 10 in the direction of its length extension may be circular, diamond-shaped or oval. The working channel 10 can be provided with one, two or more working channels according to actual diagnosis and treatment requirements, the working channel 10 can be coaxial with the support body, and can also have a certain deviation, when the working channel is provided with a plurality of working channels, the cross-sectional area of each working channel 10 in the length direction can be the same or different, namely when the working channel 10 is circular, the aperture can be the same or different.

In addition, the connection unit includes a connection cable 121 electrically connected to the front view detection unit or the side view detection unit, a connection head 122 connected to the connection cable 121;

the connecting cable 121 is embedded in the support body, and the connecting cable 121 is a power supply excitation line and an echo signal transmission line of the probe array, and can be a superfine coaxial cable, a flexible fpcb sheet, a flexible printed circuit or the like;

the connector 122 is disposed on the outer circumferential surface of the support body and located at the tail (near the proximal end) of the needle body, and is matched with an external probe connector and connected with the system host through an external cable.

The utility model discloses an ultrasonic guide needle cooperates the in service behavior of external system host computer as follows: firstly, the disinfected guide needle body is connected with a system host through a connector, the guide needle body is placed into an external dummy or a water container, each front-view detection unit and each side-view detection unit of the guide needle are started to work through the system, and each probe on each detection unit is ensured to work normally according to a feedback image. Then, the needle body is slowly inserted into the body to the lesion region through the puncture sheath tube (which is a fitting). According to the forward-looking and side-looking images, the insertion angle and the insertion direction are adjusted in due time, and after the target area is reached, the position of the needle body of the guide needle is fixed. Using the working channel 10, a sampler is inserted for sampling, or a syringe is used for nerve block treatment. After the operation is completed, the guide needle is taken out, the work of each probe is stopped, the connection is disconnected, and the disinfection is carried out so as to facilitate the next use.

To sum up, the utility model discloses an supersound guide needle can effectively solve current supersound guide piercing depth and can only guide in external control, can't carry out the not enough of high frequency high resolution formation of image to the degree of depth tissue, and it utilizes integrated foresight to survey, looks sideways at and surveys and working channel, both can image the preceding region of needle body, also can image the needle body and look sideways at the direction to can realize in real time guiding the observation to puncture/injection direction and precision, also can avoid the damage to peripheral tissue. Can conveniently puncture deep tissues and pore structure areas which are difficult to pass through in the past, and can greatly improve the flexibility, accuracy and application range of puncture diagnosis and treatment.

The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. An ultrasonically guided needle, characterized by: the guide needle is including the columniform supporter that has near-end and distal end, locate look ahead detecting element on the distal end terminal surface of supporter, locate on the outer peripheral face of supporter and be close to the detecting element that looks sideways at of supporter distal end, general look ahead detecting element with look sideways at the connecting element that detecting element and external system host computer electricity communicate, working channel has still been seted up in the supporter, working channel follows the length extending direction of supporter runs through the supporter, just working channel is provided with one at least.

2. The ultrasonic guide needle of claim 1, wherein: the cross section of the working channel in the length extension direction is circular, rhombic or elliptical.

3. The ultrasound guide needle of claim 2, wherein: the working channels are provided with a plurality of working channels, and the cross-sectional areas of the working channels in the length direction are the same or different.

4. The ultrasonic guide needle of claim 1, wherein: the forward-looking detection unit comprises a plurality of first miniature ultrasonic probes, and the first miniature ultrasonic probes are arrayed into one or more groups.

5. The ultrasound guide needle of claim 4, wherein: the first miniature ultrasonic probes are arranged in a linear array, or in an annular array, or in a planar array, or in a convex array.

6. The ultrasound guide needle of claim 4, wherein: the side-looking detection unit comprises a plurality of second miniature ultrasonic probes, and the second miniature ultrasonic probes are arrayed into one or more groups.

7. The ultrasonic guide needle of claim 6, wherein: the plurality of second miniature ultrasonic probes are arranged in a linear array, or in an annular array, or in a planar array, or in a convex array.

8. The ultrasonic guide needle of claim 6, wherein: the first micro ultrasonic probe and the second micro ultrasonic probe are made of piezoelectric ceramics, or piezoelectric single crystals, or 1-3 type piezoelectric composite materials, or piezoelectric films, or CMUTs.

9. The ultrasonic guide needle of claim 1, wherein: the connecting unit comprises a connecting cable and a connector, wherein the connecting cable is electrically connected with the forward-looking detecting unit or the side-looking detecting unit, the connector is connected with the connecting cable, the connecting cable is buried in the supporting body, and the connector is arranged on the outer peripheral surface of the supporting body.

10. The ultrasonic guide needle of claim 1, wherein: the support body comprises a filling body and an outer shell fixedly supported on the periphery of the filling body, and the filling body is made of epoxy resin or rubber or UV (ultraviolet) glue.