CN213665627U - Ultrasonic guide puncture needle - Google Patents

Abstract

The utility model discloses an supersound guide pjncture needle, include: the needle tube comprises an insertion end and a connecting end; the front end of the connector is connected with the connecting end, a first channel and a second channel are arranged in the connector, the first channel is provided with a first inlet end and a first outlet end, the first inlet end is communicated with the connecting end, the second channel is provided with a second inlet end and a second outlet end, and the second outlet end is communicated with the outside; the knob is rotatably arranged in the connector, a connecting channel is arranged inside the knob, the connecting channel is provided with a first interface and a second interface, the first interface and the second interface are both arranged outside a rotating axis of the knob, and the position of the first interface and the position of the second interface are respectively matched with the position of the first outlet end and the position of the second inlet end. The utility model discloses an supersound guide pjncture needle prevents to miss the back to wrong position sample or injection liquid medicine, avoids causing the injury to the patient. The utility model can be applied to puncture needles.

Description

Ultrasonic guide puncture needle

Technical Field

The utility model relates to a pjncture needle field, in particular to supersound guide pjncture needle.

Background

Ultrasound guided puncture needles are commonly used for sampling, drawing fluid, injecting, etc. in specific tissues and organs of the human body. There are two more critical steps in the puncture process: the puncture needle can accurately reach the puncture position through ultrasonic guidance, and the puncture position is sampled or liquid medicine is injected by using the injector. However, if the injector is touched by mistake during the process of moving the puncture needle, the patient is easily hurt by sampling or injecting liquid medicine to the wrong position.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ultrasonic guide puncture needle to solve one or more technical problems existing in the prior art, and at least provide a beneficial selection or create conditions.

The technical scheme adopted for solving the technical problems is as follows:

an ultrasound guided needle comprising:

the needle tube comprises an insertion end and a connecting end, and a rough surface is arranged on the outer side wall of the insertion end;

the front end of the connector is connected with the connecting end, a first channel and a second channel are arranged in the connector, the first channel is provided with a first inlet end and a first outlet end, the first inlet end is communicated with the connecting end, the second channel is provided with a second inlet end and a second outlet end, and the second outlet end is communicated with the outside;

the knob, the knob rotationally set up in the connector, first exit end with the second entry end all faces the knob, the inside interface channel that is equipped with of knob, interface channel along with the knob rotates, interface channel has first interface and second interface, first interface with the second interface all set up in outside the axis of rotation of knob, the position of first interface the position of second interface respectively with the position of first exit end the position phase-match of second entry end.

The utility model has the advantages that: the connecting end of the needle tube is connected with the connector, the knob is rotated to control the connection and disconnection of the first channel and the second channel in the connector, the inlet end of the first channel is communicated with the needle tube, the outlet end of the second channel is communicated with an external injector, and in the process of moving the ultrasonic guide puncture needle, the knob is rotated to disconnect the first channel and the second channel, so that sampling or liquid medicine injection at wrong positions after the injector is mistakenly started is prevented, and the patient is prevented from being injured; the outer side wall of the insertion end of the needle tube is provided with the rough surface, so that the reflecting capacity of the insertion end to ultrasonic waves is improved, the ultrasonic guide puncture needle is clearer in an ultrasonic detection image, and the ultrasonic guide puncture needle can accurately reach a puncture position.

As a further improvement of the technical scheme, the needle tube is a straight tube, the needle tube extends along the front-back direction, the insertion end is arranged in front of the connecting end, the first channel, the knob and the second channel are sequentially distributed from front to back, and the first channel and the second channel are both straight channels.

The needle tube is a straight tube, the needle tube, the first channel, the connecting channel and the second channel form a straight channel, and a guide wire, a catheter or other medical instruments are led in through the straight channel, so that the leading-in process is smoother.

As a further improvement of the above technical solution, a third channel is arranged inside the connector, the third channel has a third inlet end and a third outlet end, the third inlet end faces the knob, the third outlet end is communicated with the outside, the connecting channel is a three-way channel, the connecting channel further includes a third interface, and a position of the third interface is matched with a position of the third inlet end.

The connector is internally provided with a third channel, the connecting channel in the knob is a three-way pipeline, the knob is rotated to enable the positions of three interfaces of the connecting channel to be respectively matched with the positions of the first outlet end, the second inlet end and the third inlet end, namely, the knob is rotated to control the on-off of the first channel, the second channel and the third channel can be communicated with an external injector, two kinds of liquid medicines can be injected simultaneously, or the external injector injects the liquid medicines through the third channel, and the second channel is used for leading in a guide wire, a catheter or other medical instruments, so that the application range of the ultrasonic guide puncture needle is expanded.

As a further improvement of the above technical solution, a connecting line between the first outlet port and the second inlet port perpendicularly intersects with the rotation axis of the knob, and a connecting line between the first port and the second port perpendicularly intersects with the rotation axis of the knob.

The connection between the first outlet end and the second inlet end is vertically intersected with the rotation axis of the knob, the knob is rotated to enable the first interface of the connecting channel to be communicated with the first outlet end, the second interface of the connecting channel to be communicated with the second inlet end, and the third interface of the connecting channel to be communicated with the third inlet end, after the knob is rotated for 180 degrees, as the connecting line of the first interface and the second interface is vertically intersected with the rotation axis of the knob, the second interface of the connecting channel is communicated with the first outlet end, the first interface is communicated with the second inlet end, and the third interface is disconnected with the third inlet end, the first channel is communicated with the second channel and disconnected with the third channel, the second channel can be independently selected to be communicated with the outside, and the operation difficulty of the ultrasonic guide puncture needle is reduced.

As a further improvement of the above technical solution, the third channel is a straight channel, the third channel is disposed beside the second channel, an included angle between the third channel and the second channel is less than or equal to 45 degrees, the connecting channel is shaped like a "halberd", and the first interface is disposed in front of the second interface and the third interface.

The third channel is a straight channel, the included angle between the third channel and the second channel is less than or equal to 45 degrees, and the shape of the connecting channel is in a Bu shape, so that the corners of the channels formed among the third channel, the connecting channel and the first channel are relatively gentle, the third channel can be used for leading in guide wires, catheters or other medical instruments, and the application range of the ultrasonic guide puncture needle is expanded.

As a further improvement of the above technical solution, the third inlet end is a tapered hole with a small front and a large rear, and the shape of the third port matches with the shape of the front end of the third inlet end.

The shape of the third inlet end is a tapered hole structure with a small front part and a large rear part, the shape of the third interface is matched with the shape of the front end of the third inlet end, and when the guide wire is inserted from the third channel, the guide wire is guided into the connecting channel by the third inlet end, so that the guide wire is inserted more smoothly.

As a further improvement of the above technical solution, the second inlet end is a tapered hole with a small front and a large rear, and the shape of the second port matches with the shape of the front end of the second inlet end.

The shape of second entry end is big-end-back's taper hole structure in front, and the shape of second interface and the shape phase-match of second entry end front end, when the seal wire was inserted from the second passageway, the second entry end guide seal wire got into in the connecting channel for the inserting of seal wire is more smooth and easy.

As a further improvement of the technical scheme, the rough surface is a frosted surface and/or a concave-convex surface with regular grains.

The rough surface on the outer side wall of the needle tube insertion end is a frosted surface, and the rough surface is easy to form, so that the needle tube is easy to produce and manufacture; the rough surface is a concave-convex surface with regular grains, so that the reflection of the rough surface to the ultrasonic wave is more regular, and the reflection capability of the rough surface to the ultrasonic wave is improved; the rough surface is a frosted surface and a concave-convex surface with regular grains, for example, one part of the rough surface is the frosted surface, the other part of the rough surface is the concave-convex surface with regular grains, the reflection capability of the rough surface at different angles is different, and the imaging flicker of the rough surface at the insertion end in the moving process is changed, so that the characteristic of the insertion end is more obvious.

As a further improvement of the above technical solution, an inner diameter of the second passage gradually decreases from the second outlet end to the second inlet end.

The inner diameter of the second channel is gradually reduced from the second outlet end to the second inlet end, when the ultrasonic guide puncture needle is used for injecting liquid medicine, the liquid medicine flows to the connecting channel along the second channel, and the gradual reduction of the inner diameter of the second channel is beneficial to improving the flow rate of the liquid medicine and the diffusion speed of the liquid medicine when the liquid medicine is discharged from the needle tube; when the pjncture needle was used for organizing the sample, the sample when flowing from connecting channel to the second passageway, the sample gets into the great second passageway of internal diameter from the less second entry end of internal diameter, helps slowing down the velocity of flow of sample, and the sample volume is changeed the control, is favorable to the sample more accurate.

As a further improvement of the above technical solution, a cavity is formed in the connector, the cavity is in a circular hole shape, the first outlet end and the second inlet end are both communicated with the cavity, the knob is cylindrical, the outer side wall of the knob is matched with the inner wall of the cavity, the knob is rotatably arranged in the cavity, the connecting channel penetrates through the knob, and the first interface and the second interface are both arranged on the side wall of the knob.

Set up the cavity on the connector, the cavity of round hole form is used for the installation knob, it makes interface channel's first interface and first exit end intercommunication to rotate the knob, second interface and second entry end intercommunication, make first passageway and second passageway form the passageway of intercommunication, make first interface stagger with first exit end when rotating the knob once more, the second interface staggers with the second entry end, the lateral wall lid of knob fits first exit end and second entry end, make first passageway and second passageway disconnection, the connector is simple with the mounting structure of knob, easy to produce.

Drawings

The present invention will be further explained with reference to the drawings and examples;

FIG. 1 is a front view of an embodiment of an ultrasound guided needle provided in the present invention;

FIG. 2 is an enlarged view of A in FIG. 1, in which the rough surface of one embodiment is a concave-convex surface with regular lines;

FIG. 3 is an enlarged view of A of FIG. 1, with the roughened surface of one embodiment being a frosted surface;

FIG. 4 is a cross-sectional view of an embodiment of an ultrasound guided needle provided in accordance with the present invention;

FIG. 5 is a cross-sectional view of an embodiment of an ultrasound guided needle of the present invention shown in an alternative position after rotation of the knob;

FIG. 6 is an elevation view of an embodiment of a connector of an ultrasound guided needle provided in the present invention;

fig. 7 is a cross-sectional view of an embodiment of a connector of an ultrasound guided needle provided in the present invention.

100. The needle tube comprises a needle tube body, 110, an insertion end, 111, a rough surface, 120, a connecting end, 200, a connecting end, 210, a first channel, 211, a first inlet end, 212, a first outlet end, 220, a second channel, 221, a second inlet end, 222, a second outlet end, 230, a third channel, 231, a third inlet end, 232, a third outlet end, 240, a cavity, 250, a mounting hole, 300, a knob, 310, a connecting channel, 311, a first interface, 312, a second interface, 313 and a third interface.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 7, the ultrasound guided needle of the present invention is made in the following embodiments:

the ultrasonic guide puncture needle comprises a needle tube 100, a connector 200 and a knob 300, wherein the needle tube 100 comprises an insertion end 110 and a connecting end 120, the needle tube 100 is a straight tube, the needle tube 100 extends along the front and back direction, the insertion end 110 and the connecting end 120 are respectively arranged at the front end and the back end of the needle tube 100, a rough surface 111 is arranged on the outer side wall of the insertion end 110, the rough surface 111 can be a frosted surface, a concave-convex surface with regular grains or a frosted surface and a concave-convex surface with regular grains which are spliced together, a mounting hole 250 is arranged at the front end of the connector 200, the connecting end 120 of the needle tube 100 is inserted into the mounting hole 250, the needle tube 100 is in interference fit with the mounting hole 250, a first channel 210, a second channel 220 and a third channel 230 are arranged inside the connector 200, a cavity 240 is arranged on the connector 200, the cavity 240 is in a circular hole shape, the first channel 210, The second channel 220 and the third channel 230 are straight channels, the first channel 210, the second channel 220 and the third channel 230 are all arranged along the front-back direction, the first channel 210, the cavity 240 and the second channel 220 are sequentially arranged from front to back, the third channel 230 is arranged at the side of the second channel 220, the included angle between the third channel 230 and the second channel 220 is less than 45 degrees, so that the shape of the connector 200 is in a 'halberd' shape, the front end and the back end of the first channel 210 are respectively a first inlet end 211 and a first outlet end 212, the first inlet end 211 is communicated with the mounting hole 250, namely the first inlet end 211 is communicated with the connecting end 120 of the needle tube 100, the first outlet end 212 faces the cavity 240, the first outlet end 212 is communicated with the cavity 240, the front end and the back end of the second channel 220 are respectively a second inlet end 221 and a second outlet end 222, the second inlet end 221 faces the cavity 240, and the second inlet end 221 is communicated with the, the second inlet end 221 is a tapered hole with a small front and a large rear, the second outlet end 222 is communicated with the outside, the inner diameter of the second passage 220 is gradually reduced from the second outlet end 222 to the second inlet end 221, the front end and the rear end of the third passage 230 are respectively a third inlet end 231 and a third outlet end 232, the third inlet end 231 faces the cavity 240, the third inlet end 231 is communicated with the cavity 240, the third inlet end 231 is a tapered hole with a small front and a large rear, and the third outlet end 232 is communicated with the outside.

The knob 300 is in a cylindrical structure, the knob 300 is rotatably disposed in the cavity 240, a connecting line between the first outlet end 212 and the second inlet end 221 is perpendicularly intersected with a rotation axis of the knob 300, a connecting channel 310 is disposed inside the knob 300, the connecting channel 310 is a three-way channel, the connecting channel 310 has a first interface 311, a second interface 312 and a third interface 313, the connecting channel 310 is in a shape of a "halberd", the first interface 311, the second interface 312 and the third interface are disposed outside the rotation axis of the knob 300, the connecting line between the first interface 311 and the second interface 312 is perpendicularly intersected with the rotation axis of the knob 300, the position of the first interface 311 is matched with the position of the first outlet end 212, the position of the second interface 312 is matched with the position of the second inlet end 221, the shape of the front end of the second inlet end 221 is matched with the shape of the second interface 312, and the position of the third interface 313 is matched with the position of the third inlet end 231, the shape of the front end of the third inlet port 231 matches the shape of the third port 313. The connector 200 is switched on and off by rotating the knob 300, for example, by rotating the knob 300 to a full-on state, the first port 311 faces the first outlet port 212, the second port 312 faces the second inlet port 221, and the third port 313 faces the third inlet port 231; turning the knob 300 to a half-open state, the first port 311 faces the second inlet 221, the second port 312 faces the first outlet 212, and the third port 313 is staggered from the third inlet 231; turning the knob 300 to the off state, the first port 311 is offset from the first outlet port 212, the second port 312 is offset from the second inlet port 221, and the third port 313 is offset from the third inlet port 231.

In some embodiments, the middle of the connector 200 is provided with a cavity 240, the outer shape of the knob 300 is cylindrical, a bus of the knob 300 extends in a front-back direction, a rotation shaft is disposed at the center of a front end surface of the knob 300, a shaft hole is disposed at a position corresponding to an inner side wall of a front end of the cavity 240, the rotation shaft of the knob 300 is inserted into the shaft hole, the knob 300 is rotatably disposed in the cavity 240, the rotation shaft of the knob 300 is in the front-back direction, a first interface 311, a second interface 312, and a third interface 313 are disposed outside the rotation shaft of the knob 300, the first interface 311 is disposed on the front end surface of the knob 300, the second interface 312, and the third interface 313 are disposed on a rear end surface of the knob 300, the positions of the first interface 311, the second interface 312, and the third interface 313 correspond to the first outlet end 212, the second inlet end 221, and the third inlet end 231, respectively, and the connector, the first port 311 faces the first outlet port 212, the second port 312 faces the second inlet port 221, and the third port 313 faces the third inlet port 231; turning the knob 300 to the off state, the first port 311 is offset from the first outlet port 212, the second port 312 is offset from the second inlet port 221, and the third port 313 is offset from the third inlet port 231.

In some embodiments, the third channel 230 is not provided in the connector 200, the connection channel 310 in the knob 300 is a two-way channel, and the third port 313 is not provided in the connection channel 310, so that the structure of the ultrasound guide puncture needle is simple and the cost is reduced.

In some embodiments, the first, second, and third channels 210, 220, 230 may be curved channels, where the ultrasound guided needle may increase the distance over which the medical fluid may flow, thereby guiding the medical fluid slowly into the puncture location.

In some embodiments, the axial direction of the first channel 210 is in the front-back direction, the axial direction of the second channel 220 is in the left-right direction, and the shape of the connection channel 310 in the knob 300 is in the shape of "L", and by changing the arrangement direction of the second channel 220, the shape and structure of the connector 200 can be adjusted, so that the connector 200 can be adapted to a wider variety of devices.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims (10)

1. An ultrasound guided needle, comprising: the method comprises the following steps:

the needle tube (100), the needle tube (100) includes an insertion end (110) and a connecting end (120), the outer side wall of the insertion end (110) is provided with a rough surface (111);

the connector (200), the front end of the connector (200) is connected with the connecting end (120), a first channel (210) and a second channel (220) are arranged inside the connector (200), the first channel (210) is provided with a first inlet end (211) and a first outlet end (212), the first inlet end (211) is communicated with the connecting end (120), the second channel (220) is provided with a second inlet end (221) and a second outlet end (222), and the second outlet end (222) is communicated with the outside;

the knob (300), the knob (300) rotationally set up in connector (200), first exit end (212) with second entry end (221) all face to knob (300), inside connecting channel (310) that is equipped with of knob (300), connecting channel (310) along with knob (300) rotate, connecting channel (310) have first interface (311) and second interface (312), first interface (311) with second interface (312) all set up outside the axis of rotation of knob (300), the position of first interface (311), the position of second interface (312) respectively with the position of first exit end (212), the position phase-match of second entry end (221).

2. An ultrasound guide needle in accordance with claim 1, wherein: needle tubing (100) is the straight tube, needle tubing (100) extends along the fore-and-aft direction, insert end (110) set up in the place ahead of link (120), first passageway (210) knob (300) second passageway (220) distribute in proper order from the past backward, first passageway (210) second passageway (220) are straight passageway.

3. An ultrasound guide needle in accordance with claim 2, wherein: the connector (200) is internally provided with a third channel (230), the third channel (230) is provided with a third inlet end (231) and a third outlet end (232), the third inlet end (231) faces the knob (300), the third outlet end (232) is communicated with the outside, the connecting channel (310) is a three-way channel, the connecting channel (310) further comprises a third interface (313), and the position of the third interface (313) is matched with the position of the third inlet end (231).

4. An ultrasound guide needle according to claim 3, wherein: the connecting line of the first outlet end (212) and the second inlet end (221) is vertically intersected with the rotation axis of the knob (300), and the connecting line of the first interface (311) and the second interface (312) is vertically intersected with the rotation axis of the knob (300).

5. An ultrasound guide needle according to claim 3, wherein: the third channel (230) is a straight channel, the third channel (230) is arranged at the side of the second channel (220), the included angle between the third channel (230) and the second channel (220) is less than or equal to 45 degrees, the connecting channel (310) is shaped like a 'halberd', and the first interface (311) is arranged in front of the second interface (312) and the third interface (313).

6. An ultrasound guide needle according to claim 3, wherein: the shape of the third inlet end (231) is a tapered hole with a small front part and a big rear part, and the shape of the third port (313) is matched with the shape of the front end of the third inlet end (231).

7. An ultrasound guide needle in accordance with claim 2, wherein: the shape of the second inlet end (221) is a tapered hole with a small front end and a large rear end, and the shape of the second port (312) is matched with the shape of the front end of the second inlet end (221).

8. An ultrasound guide needle in accordance with claim 1, wherein: the rough surface (111) is a frosted surface and/or a concave-convex surface with regular grains.

9. An ultrasound guide needle in accordance with claim 1, wherein: the second passage (220) has an inner diameter that gradually decreases from the second outlet end (222) to the second inlet end (221).

10. An ultrasound guide needle in accordance with claim 1, wherein: be equipped with cavity (240) on connector (200), cavity (240) are the round hole form, first exit end (212) with second entry end (221) all communicates cavity (240), the appearance of knob (300) is the cylinder, the lateral wall of knob (300) with the inner wall of cavity (240) cooperatees, knob (300) rotationally set up in cavity (240), interface channel (310) run through knob (300), first interface (311) with second interface (312) all set up in on the lateral wall of knob (300).

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