CN215129733U - Needle-free injection needle or puncture needle for endoscope - Google Patents

Needle-free injection needle or puncture needle for endoscope Download PDF

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Publication number
CN215129733U
CN215129733U CN202120545620.9U CN202120545620U CN215129733U CN 215129733 U CN215129733 U CN 215129733U CN 202120545620 U CN202120545620 U CN 202120545620U CN 215129733 U CN215129733 U CN 215129733U
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China
Prior art keywords
inner tube
needle
handle
tube
outer protection
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CN202120545620.9U
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Chinese (zh)
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李坪
沈萧
张冠石
李佳
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沈伟
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Abstract

The utility model relates to a syringe needle or pjncture needle are used to scope of no syringe needle, including inner tube, outer protection tube and handle, inner tube and outer protection tube are the tubulose, the inner tube sets up in the outer protection tube, the handle includes handle shell and handle propelling movement portion, handle propelling movement portion sets up the rear end at the handle shell, the rear end of outer protection tube and the front end fixed connection of handle shell, the rear end of inner tube with pass the handle shell and be connected with handle propelling movement portion, the front end fixedly connected with inner tube front end of inner tube, the external diameter of inner tube front end is less than the external diameter of inner tube. The utility model discloses an inner tube and inner tube front end are transparent material's nylon tube, can effectively observe the blood return condition after the puncture, the later stage of being convenient for is injected. The metal parts of the injection needle for the existing endoscope are removed, the risk of local infection is reduced, adhesion is not easy to occur, the structure is simple, operation is easy, successful needle return after puncture can be guaranteed, and damage to the endoscope channel is avoided.

Description

Needle-free injection needle or puncture needle for endoscope
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a syringe needle or pjncture needle are used to scope of no syringe needle.
Background
The injection needle or puncture needle for endoscope can be widely used for local injection under alimentary canal mucous membrane, and can also be used for curing esophageal varices and gastric varices. In the prior art, an injection needle or a puncture needle for an endoscope is generally a disposable injection needle for an endoscope, and mainly comprises an inner tube, an outer tube, a metal protective outer tube, a needle point and a handle. The injection needle or puncture needle for the disposable endoscope can enter the body of a patient through a working forceps channel of the endoscope and is close to a focus. The needle point can be extended out from the front end of the inner tube by operating the handle, and then the needle penetrates into the target tissue, and the operator can inject the liquid medicine to be injected into the affected part through the liquid injection port of the handle, so as to achieve the purpose of treatment. The injection needle or the puncture needle for the endoscope has some defects and shortcomings in the using process, and because the visual field of the endoscope is limited, the blood return condition cannot be effectively observed after the needle head is penetrated into a target tissue, so that whether the needle is effectively penetrated or not cannot be judged, and the injection failure is easily caused; the number of metal parts of the injection needle for the endoscope is large, and the local infection probability is increased; if the needle cannot be effectively retracted after the injection is finished, the endoscopic forceps channel may be damaged after the operation is finished.
Therefore, it is desirable to provide a needle-free injection needle or puncture needle for endoscope, which solves the technical problems of the prior art that the blood return condition cannot be observed, the local infection cannot be observed, and the needle cannot be effectively returned.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a needle-free injection needle or puncture needle for endoscope, the front end of the inner tube replaces the needle to puncture, and the blood return condition can be effectively observed at the front end of the inner tube and the inner tube made of transparent material.
In order to solve the technical problem, the utility model adopts the following technical proposal:
the utility model provides a syringe needle or pjncture needle for scope of no syringe needle, includes inner tube, outer protection tube and handle, inner tube and outer protection tube are the tubulose, the inner tube sets up in outer protection tube, the handle includes handle shell and handle propelling movement portion, handle propelling movement portion sets up the rear end at handle shell, the rear end of outer protection tube and the front end fixed connection of handle shell, the rear end of inner tube with pass handle shell and be connected with handle propelling movement portion, the front end fixedly connected with inner tube front end of inner tube, the external diameter of inner tube front end is less than the external diameter of inner tube.
Preferably, the front end of the inner tube is tubular. Under the non-working state, the front end of the inner tube and the inner tube are both arranged in the outer protection tube, and when puncture injection is needed, the front end of the inner tube and the front end of the inner tube are pushed out of the front end of the outer protection tube by the push part of the operating handle to puncture and inject.
Preferably, the top end of the front end of the inner tube is provided with an inclined slope surface and a tip. The front end of the inner tube replaces the needle head of the existing injection needle for the endoscope, and the tip replaces the existing needle point to puncture and inject the target tissue.
Preferably, the front ends of the inner pipe and the inner pipe are both nylon pipes made of transparent materials. The inner tube and the inner tube front end are transparent materials, and after the sharp end of the inner tube front end is controlled by the handle pushing portion to puncture, the blood return condition of the inner tube front end can be directly observed, so that an operator can be helped to judge whether effective puncturing is performed, and later injection is facilitated.
Preferably, the handle pushing part is of a rotary type. The rotary handle pushing part is simple and convenient to operate, can control the inner tube and the extension length of the front end of the inner tube, smoothly returns the needle after completing puncture and injection, and avoids damaging the endoscope channel.
When the device is not in working state, the front ends of the inner pipe and the inner pipe are in the outer protective pipe and cannot penetrate out of the outer protective pipe. When the endoscope is used, the outer protection tube, the inner tube in the outer protection tube and the front end of the inner tube enter the body of a patient through a working forceps channel of the endoscope and are close to a focus, the front ends of the inner tube and the inner tube are pushed by the pushing part of the control handle to penetrate out of the outer protection tube by about 2cm, the pointed end of the front end of the inner tube penetrates into target tissues, blood return conditions can be observed from the front end of the transparent inner tube and the inner tube, and subsequent drug injection and treatment are carried out after the successful puncture is determined.
The utility model has the advantages as follows:
the utility model discloses a syringe needle or pjncture needle for scope of no syringe needle is owing to adopted above technical scheme, and inner tube front end are the nylon tube of transparent material, can effectively observe the blood return condition after the puncture, the later stage injection of being convenient for. The metal parts of the injection needle for the existing endoscope are removed, the risk of local infection is reduced, adhesion is not easy to occur, the structure is simple, operation is easy, successful needle return after puncture can be guaranteed, and damage to the endoscope channel is avoided.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to make the technical means more comprehensible, and to make the above and other objects, technical features, and advantages of the present invention easier to understand, one or more preferred embodiments are listed below, and the following detailed description is given with reference to the accompanying drawings.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 shows a schematic structural view of a needle or a puncture needle for a needle-less endoscope of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1 according to the present invention.
Description of the main reference numerals:
1-inner tube, 11-front end of inner tube, 2-outer protection tube, 3-handle shell, 31-handle pushing part.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the items in the figures are turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" can encompass both an orientation of below and above. The article may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
As shown in fig. 1-2, an injection needle or puncture needle for a needle-free endoscope comprises an inner tube 1, an outer protection tube 2 and a handle 3, wherein the inner tube 1 and the outer protection tube 2 are both in a tubular shape, the inner tube 1 is arranged in the outer protection tube 2, the handle comprises a handle shell 31 and a handle pushing part 32, the handle pushing part 32 is arranged at the rear end of the handle shell 31, the rear end of the outer protection tube 2 is fixedly connected with the front end of the handle shell 31, and the rear end of the inner tube 1 penetrates through the handle shell 31 to be connected with the handle pushing part 32.
The front end of the inner tube 1 is fixedly connected with an inner tube front end 11, the inner tube front end 11 is tubular, and the outer diameter of the inner tube front end 11 is smaller than that of the inner tube 1. When the puncture injection is required, the operation handle pushing portion 32 pushes the inner tube tip 11 and the inner tube 1 out of the tip of the outer protection tube 2 to perform the puncture and the injection.
The top end of the front end 11 of the inner tube is provided with an inclined slope surface and a tip. The front end 11 of the inner tube replaces the needle head of the existing injection needle for endoscope, and the tip replaces the existing needle point to puncture and inject the target tissue.
The inner tube 1 and the front end 11 of the inner tube are both made of transparent nylon tubes. Inner tube 1 and inner tube front end 11 are transparent material, and after the most advanced of inner tube front end 11 was punctured through handle propelling part 32 control, the blood return condition of inner tube front end 11 can directly be observed, can help the operator to judge whether to have effectually pierced, the later stage injection of being convenient for.
The handle pushing part 32 is of a rotary type. The rotary handle pushing part 32 is simple and convenient to operate, can control the extension lengths of the inner tube 1 and the front end 11 of the inner tube, and can smoothly return the needle after puncture and injection are finished, so that the damage to the endoscopic forceps channel is avoided.
In the inoperative state, the inner tube 1 and the inner tube front end 11 are inside the outer protective tube 2 and do not protrude from the outer protective tube 2. When the puncture needle is used, the outer protection tube 2 and the inner tube 1 and the inner tube front end 11 in the outer protection tube 2 enter a patient body through a working forceps channel of an endoscope and are close to a focus, the inner tube 1 and the inner tube front end 11 penetrate out of the outer protection tube 2 by about 2cm through the pushing part 32 of the control handle, the pointed end of the inner tube front end 11 penetrates into target tissues, blood return conditions can be observed from the transparent inner tube front end 11 and the inner tube 1, and subsequent drug injection and treatment are carried out after the puncture success is determined.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. Any simple modifications, equivalent changes and modifications made to the above exemplary embodiments shall fall within the scope of the present invention.

Claims (5)

1. The utility model provides a syringe needle or pjncture needle for scope of no syringe needle, its characterized in that, includes inner tube (1), outer protection tube (2) and handle (3), inner tube (1) and outer protection tube (2) are the tubulose, inner tube (1) sets up in outer protection tube (2), the handle includes handle shell (31) and handle propelling movement portion (32), handle propelling movement portion (32) set up the rear end at handle shell (31), the rear end of outer protection tube (2) and the front end fixed connection of handle shell (31), the rear end of inner tube (1) with pass handle shell (31) and be connected with handle propelling movement portion (32), the front end fixed connection of inner tube (1) has inner tube front end (11), the external diameter of inner tube front end (11) is less than the external diameter of inner tube (1).
2. A needle-less injection or puncture needle for endoscopes according to claim 1, characterized in that the front end (11) of the inner tube is tubular.
3. A needle-less injection needle or puncture needle for endoscopes according to claim 2, characterized in that the tip of the front end (11) of the inner tube is provided with an inclined ramp and a pointed end.
4. A needleless injection needle or puncture needle for an endoscope according to claim 3, characterized in that the inner tube (1) and the front end (11) of the inner tube are both nylon tubes made of transparent material.
5. A needle-less injection needle or puncture needle for endoscopes according to claim 1, characterized in that the handle pushing part (32) is of a rotary type.
CN202120545620.9U 2021-03-17 2021-03-17 Needle-free injection needle or puncture needle for endoscope Active CN215129733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120545620.9U CN215129733U (en) 2021-03-17 2021-03-17 Needle-free injection needle or puncture needle for endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120545620.9U CN215129733U (en) 2021-03-17 2021-03-17 Needle-free injection needle or puncture needle for endoscope

Publications (1)

Publication Number Publication Date
CN215129733U true CN215129733U (en) 2021-12-14

Family

ID=79416208

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120545620.9U Active CN215129733U (en) 2021-03-17 2021-03-17 Needle-free injection needle or puncture needle for endoscope

Country Status (1)

Country Link
CN (1) CN215129733U (en)

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