CN208524988U - Disposable injection needle for endoscope - Google Patents
Disposable injection needle for endoscope Download PDFInfo
- Publication number
- CN208524988U CN208524988U CN201721779568.3U CN201721779568U CN208524988U CN 208524988 U CN208524988 U CN 208524988U CN 201721779568 U CN201721779568 U CN 201721779568U CN 208524988 U CN208524988 U CN 208524988U
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- CN
- China
- Prior art keywords
- fluid injection
- needle
- inner tube
- tube assembly
- connector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of disposable injection needle for endoscope, it includes outer tube assembly and push component, is provided in the outer tube assembly along the channel that it is axially penetrated through；The push component includes the fluid injection connector of inner tube assembly and the tail portion for being connected to inner tube assembly, said inner tube component includes the needle portion that head is arranged in, said inner tube component is movably interspersed in channel, said inner tube component is connected with the fluid injection connector is formed with one for medium to be passed to needle portion from fluid injection connector, to inject the reservoir channel of tissue.The utility model can not only conveniently go out needle and the withdraw of the needle, and smooth in scope bet liquid, easy to use.
Description
Technical field
The utility model relates to a kind of disposable injection needle for endoscope.
Background technique
Currently, scope is common medical instrument in current clinical conditions, medical staff by by equipment head and
Conduit part protrudes into patient to observe by eyepiece it.Meanwhile scope be also equipped with ancillary equipment can be in observation
It is sampled, treats or performs the operation immediately simultaneously.Injection needle is one of component part particularly important in therapeutic endoscopy, is used for
To cavity organization's liquid medicine injection in clinical process.Injection needle for endoscope in currently available technology has following basic structure:
Injection needle point is connected with perfusion tube, and perfusion tube is fixed in needle stand moving tube, and outside is equipped with sheath protection of pipe, covers in needle stand stop bit pipe
One end is controlled out, the withdraw of the needle by pushing moving tube, and by perfusion tube, needle point to chamber tissue injection medical fluid.Conventional
Needle stand limits moving tube movement by fit clearance etc., prevents needle point from retracting, but the manipulation of this technical method is difficult, locking effect
Fruit is unobvious；Sheath is fixed on stop bit pipe by close-fitting mode, is easily got loose and is waited danger；Sheath front port is protected without end cap
Shield, to be heat-shrinked molding, needle guiding performance is poor out, the easily-deformable, withdraw of the needle.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of disposable scope use
Injection needle, it can not only conveniently go out needle and the withdraw of the needle, and smooth in scope bet liquid, easy to use.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of disposable injection needle for endoscope, it
Include:
Outer tube assembly is provided with along the channel that it is axially penetrated through in the outer tube assembly；
Component is pushed, the push component includes the fluid injection connector of inner tube assembly and the tail portion for being connected to inner tube assembly, institute
Stating inner tube assembly includes that the needle portion on head is arranged in, and said inner tube component is movably interspersed in channel, said inner tube component
It is connected with the fluid injection connector and is formed with one for medium to be passed to needle portion from fluid injection connector, so that the fluid injection for injecting tissue is logical
Road.
When further for needle out, facilitate and lock out pin position, the outer tube assembly includes the handle portion positioned at tail end
Part is provided with engaging mechanism between the handle component and the fluid injection connector, when fluid injection connector is moved to the fluid injection connector
When being bonded together with the handle component by engaging mechanism, the head in the needle portion is stretched out outer under the movement of inner tube assembly
Tube assembly, when fluid injection connector is moved to the fluid injection connector and the handle component is detached from, the needle portion is recovered into described outer
In tube assembly.
A kind of specific structure of engaging mechanism is further provided, the engaging mechanism includes being arranged on fluid injection connector
It inserts matching hole and is arranged on the tail end of the handle component and can be locked in inserting simultaneously with inserting matching hole inserting cooperation
Cartridge part in matching hole.
Further for the engagement for facilitating engaging mechanism, bulge loop is provided on the outer wall of the cartridge part, the inserting is matched
Close the groove being provided on the inner wall in hole with bulge loop interlocking cooperation.
Further for preferably back stitching, fluid injection connector is resetted, is set between the handle component and the fluid injection connector
It is equipped with the reset for resetting fluid injection connector for acting on the fluid injection connector when fluid injection connector is detached from the handle component
Elastic element.
A kind of specific structure of outer tube assembly is further provided, the outer tube assembly further includes outer tube, the outer tube
Tail portion is connected with the handle component.
Further for the guiding cap for facilitating the head of the outer tube assembly to be provided with conducive to importing.
A kind of specific structure of inner tube assembly is further provided, said inner tube component further includes infusion inner tube and boosting
Pipe, the needle portion are connected with the head of the infusion inner tube, and the tail portion of the infusion inner tube is connected with the head of the boost tube,
The tail portion of the boost tube is protruded into fluid injection connector, and is connected with the liquid injection port of fluid injection connector, the first passage in the needle portion,
It is described infusion inner tube second channel, the third channel of the boost tube and the liquid injection port of the fluid injection connector be sequentially connected it is logical,
Form the reservoir channel.
Further for shift motion of the inner tube assembly in outer tube assembly is limited, it is provided on the outer wall of the boost tube
For limiting the position-limiting tube of inner tube assembly shift motion.
Further, it being provided with thrust pipe in the head of the infusion inner tube, the tail portion in the needle portion is inserted in infusion inner tube,
And at the same time being inserted in thrust pipe.
After above-mentioned technical proposal, the liquid injection port of fluid injection connector is connected with external liquid-injection equipment, holds handle
Component pushes ahead fluid injection connector, so that fluid injection connector and handle component are bonded together by engaging mechanism, the needle on head
Outer tube assembly is stretched out in portion, is pierced into tissue, is then opened liquid-injection equipment, the medium needed just enters needle portion from reservoir channel, then
Into tissue, after injection, fluid injection connector is detached from handle component, fluid injection connector is multiple under the action of reseting elastic element
Position, needle portion will take in outer tube assembly, can not only conveniently go out needle and the withdraw of the needle in this way, and smooth in scope bet liquid, make
With conveniently.
Detailed description of the invention
Fig. 1 goes out structural schematic diagram when needle-shaped state for the disposable injection needle for endoscope of the utility model；
Structural schematic diagram when Fig. 2 is the disposable injection needle for endoscope back stitching state of the utility model；
Fig. 3 is the head construction schematic diagram of the disposable injection needle for endoscope of the utility model.
Specific embodiment
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
As shown in Figures 1 to 3, a kind of disposable injection needle for endoscope, it includes:
Outer tube assembly is provided with along the channel that it is axially penetrated through in the outer tube assembly；
Component is pushed, the push component includes the fluid injection connector 10 of inner tube assembly and the tail portion for being connected to inner tube assembly,
Said inner tube component includes the needle portion 1 that head is arranged in, and said inner tube component is movably interspersed in channel, said inner tube group
Part and the fluid injection connector 10 connection are formed with one for medium to be passed to needle portion 1 from fluid injection connector 10, to inject tissue
Reservoir channel.
As shown in Figure 1, 2, the outer tube assembly includes the handle component positioned at tail end, the handle component and the note
It is provided with engaging mechanism between liquid connector 10, when fluid injection connector 10 is moved to the fluid injection connector 10 and the handle component passes through
When engaging mechanism is bonded together, outer tube assembly is stretched out on the head in the needle portion 1 under the movement of inner tube assembly, when fluid injection connector
10 are moved to the fluid injection connector 10 and the handle component when being detached from, and the needle portion 1 is recovered into the outer tube assembly.
As shown in Figure 1, the engaging mechanism includes that the inserting matching hole 101 being arranged on fluid injection connector 10 and setting exist
It can be locked in the inserting in inserting matching hole 101 simultaneously on the tail end of the handle component and with the inserting inserting cooperation of matching hole 101
Portion 81.
As shown in Figure 1, being provided with bulge loop on the outer wall of the cartridge part 81, set on the inner wall of the inserting matching hole 101
It is equipped with the groove with bulge loop interlocking cooperation；When fluid injection connector 10 and handle component are bonded together, described in the bulge loop insertion
In groove, so as to lock fluid injection connector 10, the phenomenon that needle portion 1 is due to improper operation back stitching is avoided.
As shown in Figure 1, being provided between the handle component and the fluid injection connector 10 for when fluid injection connector 10 and institute
It states and acts on the reseting elastic element 9 that the fluid injection connector 10 resets fluid injection connector 10 when handle component is detached from；In this implementation
In example, the reseting elastic element 9 is reset spring, and but not limited to this, and reseting elastic element 9 herein can not also be set
It sets, by artificial mode, fluid injection connector 10 is directly detached into handle component.
In the present embodiment, as shown in Figure 1, handle component includes the handle 5 and fixed handle 8 to link together.
As shown in Figure 1, the outer tube assembly further includes outer tube 3, the tail portion of the outer tube 3 is connected with the handle component；
Specifically, the tail portion of outer tube 3 is connected after protruding into handle 5 with the head end of fixed handle 8.
As shown in Figure 1, the head of the outer tube assembly is provided with conducive to the guiding cap 2 imported；Specifically, the guiding cap
2 are connected with outer tube 3, and the position that guiding cap 2 is engaged with outer tube 3 is provided with multiple overhead structures, so as to guiding cap 2 and outer tube
3 are connected firmly.
As shown in Figure 1, said inner tube component further includes infusion inner tube 4 and boost tube 7, the needle portion 1 in the infusion
The head of pipe 4 is connected, and the tail portion of the infusion inner tube 4 is connected with the head of the boost tube 7, and the tail portion of the boost tube 7 is stretched
Enter in fluid injection connector 10, and is connected with the liquid injection port of fluid injection connector 10, the first passage in the needle portion 1, the infusion inner tube 4
Second channel, the third channel of the boost tube 7 and the liquid injection port of the fluid injection connector 10 be sequentially connected logical, form the note
Liquid channel.
As shown in Figure 1, being provided with the position-limiting tube 6 for limiting inner tube assembly shift motion on the outer wall of the boost tube 7.
As shown in figure 3, being provided with thrust pipe 41 in the head of the infusion inner tube 4, infusion is inserted in the tail portion in the needle portion 1
In inner tube 4, and at the same time being inserted in thrust pipe 41.
The working principle of the utility model is as follows:
The liquid injection port of fluid injection connector 10 is connected with external liquid-injection equipment, holds handle component, by fluid injection connector 10 to
It is pushed forward into so that fluid injection connector 10 and handle component are bonded together by engaging mechanism, outer tube group is stretched out in the needle portion 1 on head
Part is pierced into tissue, then opens liquid-injection equipment, and the medium needed just enters needle portion 1 from reservoir channel, subsequently into tissue, note
After penetrating, fluid injection connector 10 is detached from handle component, fluid injection connector 10 resets under the action of reseting elastic element 9, needle portion 1
It will take in outer tube assembly, can not only conveniently go out needle and the withdraw of the needle in this way, and smooth in scope bet liquid, it is easy to use.
Particular embodiments described above, to the utility model solve the technical issues of, technical scheme and beneficial effects into
It has gone further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and has not had to
In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvement done
Deng should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of disposable injection needle for endoscope, which is characterized in that it includes:
Outer tube assembly is provided with along the channel that it is axially penetrated through in the outer tube assembly；
Component is pushed, the push component includes the fluid injection connector (10) of inner tube assembly and the tail portion for being connected to inner tube assembly, institute
Stating inner tube assembly includes that the needle portion (1) on head is arranged in, and said inner tube component is movably interspersed in channel, said inner tube group
Part and the fluid injection connector (10) connection are formed with one for medium to be passed to needle portion (1) from fluid injection connector (10), to inject
The reservoir channel of tissue.
2. disposable injection needle for endoscope according to claim 1, it is characterised in that: the outer tube assembly includes being located at tail
The handle component of end is provided with engaging mechanism between the handle component and the fluid injection connector (10), when fluid injection connector
(10) it is moved to the fluid injection connector (10) and when the handle component is bonded together by engaging mechanism, the needle portion (1)
Head outer tube assembly is stretched out under the movement of inner tube assembly, when fluid injection connector (10) is moved to the fluid injection connector (10) and institute
When stating handle component disengaging, the needle portion (1) is recovered into the outer tube assembly.
3. disposable injection needle for endoscope according to claim 2, it is characterised in that: the engaging mechanism includes that setting exists
Inserting matching hole (101) on fluid injection connector (10) and be arranged on the tail end of the handle component and with inserting matching hole
(101) inserting cooperates while can be locked in the cartridge part (81) in inserting matching hole (101).
4. disposable injection needle for endoscope according to claim 3, it is characterised in that: on the outer wall of the cartridge part (81)
It is provided with bulge loop, the groove with bulge loop interlocking cooperation is provided on the inner wall of inserting matching hole (101).
5. disposable injection needle for endoscope according to claim 2, it is characterised in that: the handle component and the fluid injection
It is provided between connector (10) for acting on the fluid injection connector when fluid injection connector (10) are detached from the handle component
(10) reseting elastic element (9) for resetting fluid injection connector (10).
6. disposable injection needle for endoscope according to claim 2, it is characterised in that: the outer tube assembly further includes outer tube
(3), the tail portion of the outer tube (3) is connected with the handle component.
7. disposable injection needle for endoscope according to claim 1, it is characterised in that: the head of the outer tube assembly is arranged
Be conducive to the guiding cap (2) imported.
8. disposable injection needle for endoscope according to claim 1, it is characterised in that: said inner tube component further includes infusion
Inner tube (4) and boost tube (7), the needle portion (1) are connected with the head of infusion inner tube (4), the tail of infusion inner tube (4)
Portion is connected with the head of the boost tube (7), and the tail portion of the boost tube (7) is protruded into fluid injection connector (10), and is connect with fluid injection
The liquid injection port of head (10) is connected, the first passage of the needle portion (1), the second channel of infusion inner tube (4), the boosting
The liquid injection port of the third channel and the fluid injection connector (10) of managing (7) is sequentially connected logical, forms the reservoir channel.
9. disposable injection needle for endoscope according to claim 8, it is characterised in that: on the outer wall of the boost tube (7)
It is provided with the position-limiting tube (6) for limiting inner tube assembly shift motion.
10. disposable injection needle for endoscope according to claim 8, it is characterised in that: the head of infusion inner tube (4)
It is inside provided with thrust pipe (41), the tail portion of the needle portion (1) is inserted in infusion inner tube (4), and at the same time being inserted in thrust pipe (41)
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721779568.3U CN208524988U (en) | 2017-12-18 | 2017-12-18 | Disposable injection needle for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721779568.3U CN208524988U (en) | 2017-12-18 | 2017-12-18 | Disposable injection needle for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208524988U true CN208524988U (en) | 2019-02-22 |
Family
ID=65398968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721779568.3U Active CN208524988U (en) | 2017-12-18 | 2017-12-18 | Disposable injection needle for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208524988U (en) |
-
2017
- 2017-12-18 CN CN201721779568.3U patent/CN208524988U/en active Active
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