CN208725869U - It can be close to the snare of tissue - Google Patents
It can be close to the snare of tissue Download PDFInfo
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- CN208725869U CN208725869U CN201820349702.4U CN201820349702U CN208725869U CN 208725869 U CN208725869 U CN 208725869U CN 201820349702 U CN201820349702 U CN 201820349702U CN 208725869 U CN208725869 U CN 208725869U
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- electric circle
- snare
- main body
- tissue
- drag
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Abstract
The utility model discloses the snares that one kind can be close to tissue, including snare main body and electric circle, the electric circle to be mounted on the front end of snare main body, drives electric circle to release or withdraw by the snare main body, and can withdraw completely in snare main body；The electric circle is ring structure, the ring structure includes first annular section and the second ring segment made of wirerope made of stainless steel band, two parts ring segment collectively forms complete electric circle, wherein first annular section of the section made of stainless steel band is rectangle.The utility model is rectangle first annular section made of stainless steel band using section, is easier to be close to tissue in operation, and when entire electric circle is shunk, the radial force that electric circle is formed is larger, and excision is easier.First annular section of the electric circle of the utility model is made of stainless steel band, has good elasticity and support force, and the shape of electric circle is repeatedly still ensured that after excision.
Description
Technical field
The utility model relates to the snares that one kind can be close to tissue, belong to the field of medical instrument technology.
Background technique
Snare is a kind of common endoscopic instruments, it entangles lesion using annular collar, then cooperates high-frequency electrical by polyp
Or excess tissue excision.The electric circle of conventional snare is made of wirerope, since wirerope is softer, for needing tightly to paste
The polyp or excess tissue leaned on, operation is more difficult, needs repeatedly to be attempted, the operating time is long, increases the pain of patient, and shadow
Ring surgical effect.
Summary of the invention
The technical problem to be solved by the utility model is to tissue can be close to by overcoming the deficiencies of the prior art and provide one kind
Snare, can be snug against organizationally when extracting polyp or excess tissue, and radial force is big.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: one kind can be close to the snare of tissue, packet
Snare main body and electric circle are included, the electric circle is mounted on the front end of snare main body, drives electric circle to push away by the snare main body
It out or withdraws, and can withdraw completely in snare main body；The electric circle is ring structure, and the ring structure includes by stainless steel
With manufactured first annular section and the second ring segment made of wirerope, two parts ring segment collectively forms complete electric circle,
Wherein, first annular section of the section made of stainless steel band is rectangle.
Further, the described first annular section rear portion positioned at entire electric circle, and the axisymmetrical relative to snare main body
Distribution, the first annular section of one third for accounting for entire electric circle, remaining is the second ring segment made of wirerope.
Further, the front end of the electric circle is provided with the guide head being in the shape of the letter V.
Further, the snare main body includes drag-line, pipe sheath, protecting pipe, turncap, slip ring and core bar, the drag-line
Front end be fixedly connected with the tail end of electric circle, the pipe sheath is set on the outside of the drag-line, before the rear end of pipe sheath and protecting pipe
End is fixedly connected, and the rear end of the protecting pipe is rotatably connected on core bar by turncap, and the slip ring is axially movable
Ground is set on core bar, and the rear end of the drag-line is fixedly connected with slip ring, along slip ring is pulled axially back and forth, passes through drag-line band
Dynamic electric circle is moved forward and backward, to realize that electric circle is released or withdrawn with respect to pipe sheath.
Further, with the slip ring relative to no rotation, i.e., the described slip ring can be only axially moveable the core bar with respect to core bar,
Rotation core bar is to drive electric circle to realize rotation.
Further, electrode tip is provided on the core bar, the electrode tip is electrically connected with drag-line, the drag-line and electric circle electricity
Connection.
After above-mentioned technical proposal, the utility model is the first ring made of stainless steel band of rectangle using section
Shape section is easier to be close to tissue in operation, and when entire electric circle is shunk, the radial force that electric circle is formed is larger, and excision is easier.And
And compared to the whole all routine snares made of wirerope of electric circle, after multiple high frequency electroblation, electric circle shape occurs
Deformation is influenced using first annular section of the electric circle of the utility model is made of stainless steel band, has good elasticity and support
Power repeatedly still ensures that the shape of electric circle after excision.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the partial enlarged view at the electric circle in Fig. 1；
In figure, 1, first annular section, the 2, second ring segment, 3, pipe sheath, 4, drag-line, 5, protecting pipe, 6, turncap, 7, cunning
Ring, 8, core bar, 9, electrode tip, 10, guide head.
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.
Unless not defining, the technical term or scientific term used herein is should be in the utility model fields
The ordinary meaning that personage with general technical ability is understood.Used in the utility model patent specification and claims
" first ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish different
Component part.Equally, the similar word such as "one" or " one " does not indicate that quantity limits yet, but indicates there is at least one
It is a.
As shown in Figure 1 and Figure 2, a kind of snare for being close to tissue, including snare main body and electric circle, the electric circle peace
Mounted in the front end of snare main body, electric circle is driven to release or withdraw by the snare main body, and snare master can be withdrawn completely
In vivo；The electric circle is ring structure, and the ring structure includes first annular section 1 and by wirerope made of stainless steel band
Manufactured second ring segment 2, two parts ring segment collectively form complete electric circle, wherein the first ring made of stainless steel band
The section of shape section 1 is rectangle.
As shown in Fig. 2, described first annular section 1 rear portion positioned at entire electric circle, and the axis relative to snare main body
One third that is symmetrical, accounting for entire electric circle for first annular section 1, remaining is the second ring segment 2 made of wirerope.
As shown in Figure 1 and Figure 2, the front end of the electric circle is provided with the guide head 10 being in the shape of the letter V, for pathological tissues
It is oriented to and is positioned.
As shown in Figure 1, the snare main body includes drag-line 4, pipe sheath 3, protecting pipe 5, turncap 6, slip ring 7 and core bar 8,
The front end of the drag-line 4 is fixedly connected with the tail end of electric circle, and the pipe sheath 3 is sheathed on 4 outside of drag-line, the rear end of pipe sheath 3
It is fixedly connected with the front end of protecting pipe 5, the rear end of the protecting pipe 5 is rotatably connected on core bar 8 by turncap 6, institute
It states slip ring 7 to be axially displaceably set on core bar 8, and the rear end of the drag-line 4 is fixedly connected with slip ring 7, before axial direction
Slip ring 7 is pulled afterwards, drives electric circle to be moved forward and backward by drag-line 4, to realize that electric circle is released or withdrawn with respect to pipe sheath 3.
In order to increase the verticity of electric circle, the core bar 8 with the slip ring 7 relative to no rotation, i.e., only may be used by the described slip ring 7
Opposite core bar 8 is axially moveable, and when practical operation, pipe sheath 3, protecting pipe 6 and turncap 6 are fixation member, core bar 8, slip ring 7,
Drag-line 4 and electric circle are rotatable parts, drive slip ring 7 to rotate by rotation core bar 8, and then electric circle is driven to realize rotation.
As shown in Figure 1, being provided with electrode tip 9 on the core bar 8, electrode tip 9 is used for external high frequency electric equipment, by high-frequency electrical
Electric circle is introduced, the electrode tip 9 is electrically connected with drag-line 4, and the drag-line 4 is electrically connected with electric circle.
When cutting off polyp or excess tissue, pipe sheath 3 inputs pathological tissues position into the human body through endoscopic forceps channel, utilizes V
Font guide head 10 positions, and when needing to rotate electric circle, rotation core bar 8 is to drive electric circle to turn to suitable position；It will slide
Ring 7 is moved forward with respect to core bar 8, and electric circle is stretched out from the front end of pipe sheath 3, and forms lasso, and by endoscopic views, electric circle is covered
On polyp or excess tissue, wherein again gradually move backward slip ring 7 with respect to core bar 8, lasso becomes smaller therewith, to by stainless steel
After being close to the polyp or excess tissue that need to cut off with manufactured first annular section 1, then through the introducing electric current of electrode tip 9, through high-frequency electrical
The polyp extracted or excess tissue excision can will be difficult to after calcination.
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 (6)
1. the snare that one kind can be close to tissue, it is characterised in that: including snare main body and electric circle, the electric circle is mounted on circle
The front end for covering device main body drives electric circle to release or withdraw, and can withdraw completely in snare main body by the snare main body；Institute
Stating electric circle is ring structure, and the ring structure includes made of stainless steel band first annular section (1) and is made of wirerope
The second ring segment (2), two parts ring segment collectively forms complete electric circle, wherein first annular made of stainless steel band
The section of section (1) is rectangle.
2. the snare that one kind according to claim 1 can be close to tissue, it is characterised in that: first annular section (1)
It is distributed positioned at the rear portion of entire electric circle, and relative to the axisymmetrical of snare main body, first annular section (1) accounts for entire electric circle
One third, remaining is the second ring segment made of wirerope (2).
3. the snare that one kind according to claim 1 can be close to tissue, it is characterised in that: the front end of the electric circle is set
It is equipped with the guide head (10) being in the shape of the letter V.
4. the snare that one kind according to claim 1 can be close to tissue, it is characterised in that: the snare main body includes
Drag-line (4), pipe sheath (3), protecting pipe (5), turncap (6), slip ring (7) and core bar (8), the front end of the drag-line (4) and electric circle
Tail end be fixedly connected, the pipe sheath (3) is sheathed on the outside of the drag-line (4), before the rear end and protecting pipe (5) of pipe sheath (3)
End is fixedly connected, and the rear end of the protecting pipe (5) is rotatably connected on core bar (8) by turncap (6), the slip ring
(7) it is axially displaceably set on core bar (8), and the rear end of the drag-line (4) is fixedly connected with slip ring (7), along axial direction
Front and back pulls slip ring (7), drives electric circle to be moved forward and backward by drag-line (4), to realize that electric circle is released or received with respect to pipe sheath (3)
It returns.
5. the snare that one kind according to claim 4 can be close to tissue, it is characterised in that: the core bar (8) with it is described
Slip ring (7) can be only axially moveable relative to no rotation, i.e., the described slip ring (7) with respect to core bar (8), and rotation core bar (8) is to drive
Electric circle realizes rotation.
6. the snare that one kind according to claim 5 can be close to tissue, it is characterised in that: be arranged on the core bar (8)
Have electrode tip (9), the electrode tip (9) is electrically connected with drag-line (4), and the drag-line (4) is electrically connected with electric circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820349702.4U CN208725869U (en) | 2018-03-15 | 2018-03-15 | It can be close to the snare of tissue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820349702.4U CN208725869U (en) | 2018-03-15 | 2018-03-15 | It can be close to the snare of tissue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208725869U true CN208725869U (en) | 2019-04-12 |
Family
ID=66023185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820349702.4U Active CN208725869U (en) | 2018-03-15 | 2018-03-15 | It can be close to the snare of tissue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208725869U (en) |
-
2018
- 2018-03-15 CN CN201820349702.4U patent/CN208725869U/en active Active
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