CN213963518U

CN213963518U - Surgical instrument combining snare and injection needle

Info

Publication number: CN213963518U
Application number: CN202022222308.4U
Authority: CN
Inventors: 赵小青
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-08-17
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a surgical instruments of combination snare ware and syringe needle, including the tube sheath, inside first passageway and the second passageway of having of tube sheath, the injection base is installed to the one end of first passageway, the injection base is used for docking the syringe, the inside sleeve pipe that is equipped with of first passageway, sleeve pipe one end and injection pedestal connection, the sheathed tube other end is equipped with the syringe needle, the injection base can drive the sleeve pipe and move in first passageway, so that the syringe needle is flexible at the other end of first passageway, the handle is installed to the one end of second passageway, be equipped with draw gear in the second passageway, the handle is connected to draw gear's one end, draw gear's the other end is equipped with the metal snare, draw gear can drive draw gear and move in the second passageway, so that the metal snare is flexible at the other end of second passageway. Combines the function of the injection needle and the snare device, solves the defect of replacing the injection needle and the snare device for a plurality of times in the using process, and is suitable for the field of medical appliances.

Description

Surgical instrument combining snare and injection needle

Technical Field

The utility model relates to the field of medical equipment, in particular to a surgical instrument combining a snare and an injection needle.

Background

A snare: an instrument for ligating blood vessels, ligating polyps or other duct structures.

An injection needle: the endoscope device is a longer pipeline structure capable of passing through an endoscope channel, is provided with an injection needle and an injection base, extracts liquid through the injection needle, injects the liquid after being connected with the base, and extracts or injects gas or liquid through the needle.

At present, in the treatment process of digestive tract polyp, a needle is used for injecting liquid under the mucosa of a focus (lifting up) and then a snare is used for ligation and excision of the focus, two tools, namely the needle and the snare, are correspondingly needed, and in the process of operating the needle and the snare, the needle and the snare need to enter and exit an endoscope alternately, so that the operation time is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a surgical instruments of combination snare and syringe needle, it can solve the drawback of changing syringe needle and snare many times among the operation process.

The utility model adopts the technical proposal that: a surgical instrument combining a snare and an injection needle, comprising a sheath having a first channel and a second channel inside, an injection base is arranged at one end of the first channel and is used for butting an injector, a sleeve is arranged in the first channel, one end of the sleeve is connected with the injection base, the other end of the sleeve is provided with a needle head, the injection base can drive the sleeve to move in the first channel, so that the needle head can stretch out and draw back at the other end of the first channel, one end of the second channel is provided with a handle, a traction device is arranged in the second channel, one end of the traction device is connected with the handle, the other end of the traction device is provided with a metal ring sleeve, the handle can drive the traction device to move in the second channel, so that the metal ring is sleeved at the other end of the second channel to stretch.

Further as the utility model discloses technical scheme's improvement, draw gear includes the metal cable.

Further as the utility model discloses technical scheme's improvement, the injection base with the handle is located same one end of tube sheath.

Further as the utility model discloses technical scheme's improvement, first passageway with the second passageway interval sets up.

Further conduct the utility model discloses technical scheme's improvement, the tube sheath adopts the TPU material preparation.

The utility model has the advantages that: the syringe is butted on the injection base to inject, the metal ring is bound by the traction device pulled by the handle to cut off polyp, thus combining the functions of the injection needle and the snare into a whole, and solving the defect that the injection needle and the snare are replaced for many times in the operation process.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic view of an illustrative embodiment of the present invention.

Detailed Description

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as up, down, front, rear, left, right, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description of the present invention, 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 invention, the meaning of a plurality of the terms is one or more, the meaning of a plurality of the terms is two or more, and the terms larger, smaller, larger, etc. are understood to include no essential numbers, and the terms larger, smaller, etc. are understood to include essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the invention, unless otherwise explicitly defined, terms such as set, mounted, connected and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, an embodiment of the present invention provides a surgical instrument that combines a snare and an injection needle, the injection device mainly comprises a tube sheath 1, a first channel 11 and a second channel 12 are arranged in the tube sheath 1, an injection base 2 is arranged at one end of the first channel 11, the injection base 2 is used for butting an injector, a sleeve 21 is arranged in the first channel 11, one end of the sleeve 21 is connected with the injection base 2, a needle 22 is arranged at the other end of the sleeve 21, the injection base 2 can drive the sleeve 21 to move in the first channel 11, so that the needle 22 can stretch out and draw back at the other end of the first channel 11, the handle 3 is installed at one end of the second channel 12, the traction device 31 is arranged in the second channel 12, one end of the traction device 31 is connected with the handle 3, the other end of the traction device 31 is provided with the metal ring sleeve 32, and the handle 3 can drive the traction device 31 to move in the second channel 12, so that the metal ring sleeve 32 can stretch out and draw back at the other end of the second channel 12.

In the use process, the needle head 22 can be exposed out of the first channel 11 by pushing the injection base 2, the injector is butted on the injection base 2 for injection, polyp is sleeved by the metal ring sleeve 32, then the handle 3 pulls the traction device 31, the metal ring sleeve 32 is driven by the traction device 31 to retract, so that the polyp is pulled out, and the defect that the injection needle and the snare are replaced for many times in the operation process can be overcome.

The sheath 11 is made of TPU, the outer diameter of the sheath 11 is smaller than 2.6mm, and the traction device 31 is made of a metal cable.

In some embodiments, the injection base 2 is located at the same end of the sheath 1 as the handle 3, which facilitates handling by the medical staff.

In some embodiments, the first channel 11 is spaced apart from the second channel 12 so that the sleeve does not interfere with the pulling device 31.

Of course, the design creation is not limited to the above embodiments, and the combination of different features of the above embodiments can also achieve good effects. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope defined by the claims of the present application.

Claims

1. A surgical instrument that combines a snare and an injection needle, characterized by: the injection device comprises a sheath, wherein a first channel and a second channel are arranged in the sheath, an injection base is installed at one end of the first channel and used for butting with an injector, a sleeve is arranged in the first channel, one end of the sleeve is connected with the injection base, a needle head is arranged at the other end of the sleeve, the injection base can drive the sleeve to move in the first channel so as to enable the needle head to stretch out and draw back at the other end of the first channel, a handle is installed at one end of the second channel, a traction device is arranged in the second channel, one end of the traction device is connected with the handle, a metal ring sleeve is arranged at the other end of the traction device, and the handle can drive the traction device to move in the second channel so as to enable the metal ring to stretch out and draw back at the other end of the second channel.

2. A combined snare and injection needle surgical instrument according to claim 1, wherein: the traction device comprises a metal cable.

3. A combined snare and injection needle surgical instrument according to claim 1, wherein: the injection base and the handle are located at the same end of the sheath.

4. A combined snare and injection needle surgical instrument according to claim 1, wherein: the first channel and the second channel are arranged at intervals.

5. A combined snare and injection needle surgical instrument according to claim 1, wherein: the tube sheath is made of TPU material.