CN207270361U - A kind of lasso apparatus for ligating - Google Patents
A kind of lasso apparatus for ligating Download PDFInfo
- Publication number
- CN207270361U CN207270361U CN201720289551.3U CN201720289551U CN207270361U CN 207270361 U CN207270361 U CN 207270361U CN 201720289551 U CN201720289551 U CN 201720289551U CN 207270361 U CN207270361 U CN 207270361U
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- Prior art keywords
- lasso
- sliding block
- drag
- line
- draw ring
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Abstract
The utility model discloses a kind of lasso apparatus for ligating,Including the first drag-line,First draw ring,Second drag-line,Second draw ring,Lasso,Lasso locking device,First inner tube,Second inner tube and bourdon tube,It is characterized in that,The lasso locking device includes damping body,Lasso locks sliding block and lasso lock sliding block,Described lasso one end is fixing end,It is fixed on lasso lock sliding block,First drag-line is connected by the first draw ring with the wire loop being fixed on lasso lock sliding block,The lasso other end is free end,The mesoporous that free end locks sliding block through lasso is connected by the second draw ring with the second drag-line,The lasso, which locks sliding block, has slider guide groove,Slider guide groove end is the stop block structure of prominent level,Moved with limiting lasso lock sliding block in the slider guide groove that lasso locks sliding block,And the end face at sliding block both ends is locked without departing from lasso.
Description
Technical field
It the utility model is related to and adjustment collar size is repeated when a kind of medical instrument, especially one kind extract tissue, cover
The apparatus for ligating of fixing organization is effectively ligatured during bundle.
Background technology
Pipe intestinal polyp is most common benign tumour, and canceration can occur for which part polyp especially adenomatous polyp,
Endoscopic removal treatment is generally carried out to such lesion.Under scope the common complication of polypectomy include bleeding, perforation and
Infection etc..Wherein bleeding is one of most common and complication of most serious, its incidence is 0.3%-6.1%.The thick base of a fruit or wide base
The risk higher of bleeding occurs under polyp scope after High frequency electrotomy.Polyp is ligatured in advance using nylon ferrule and blocks root
Blood flow, then the excision of row high cut art can prevent bleeding.Wherein nylon ferrule ligation joint metal folder can be avoided largely
Postoperative hemorrhage and Hemorrhage, have obtained clinic and have widely used and promote.
The nylon ferrule product structure that clinically uses is at present：It is relatively small that the nylon ring of one closing is inserted in internal diameter
Elastomer a distance, and two circles are divided into, wherein being acted on compared with great circle for lasso polyp, another circle and conveyer phase
Even.This nylon ferrule it is relatively simple for structure, but lasso ligation process be that elastomer is in bourdon tube by pulling lasso
Remained stationary as under position-limiting action, so that lasso diminishes, doctor needs by controlling lasso in elastomer from external when in use
Interior movement, if the power between lasso and elastomer is larger, doctor's operation is relatively difficult, if the power is smaller, tissue quilt cover is pricked
Lasso size is not allowed to be fixed easily afterwards, eventually causes slippage, causes Hemorrhage.The big minor adjustment mistake of above-mentioned nylon ferrule at the same time
Journey is unidirectional, once being deviated during set is pricked to extracting for tissue, then can not readjust lasso size to be applicable in
In tissue size.
Utility model content
The utility model is cut off for pipe intestinal polyp and electroporation therapy, perforates to prevent bleeding and treatment, design
One kind repeats adjustment collar size when extracting tissue, set effectively ligatures the apparatus for ligating of fixing organization when pricking, and uses simple, province
It is power, reliable.
In order to solve the above technical problems, the utility model provides a kind of lasso apparatus for ligating, including the first drag-line, the second drawing
Rope, lasso, lasso locking device and outer tube；
Described lasso one end is fixed on lasso locking device, and the other end of lasso is free end, and free end passes through set
Enclose locking device and with the separable connection of the second drag-line；
First drag-line and the second drag-line are arranged on outer tube, and the lasso locking device is arranged on outer tube front end,
First drag-line and the separable connection of lasso locking device；
When lasso locking device is in release conditions, second drag-line adjusts lasso by withdrawing the free end of lasso
Size makes it extract object；
First drag-line and the second drag-line control lasso lock sliding block and lasso free end respectively, pull the second drag-line can
Lasso size variation is controlled, to be applicable in the tissue size to be extracted.After completion is extracted, the second drag-line is withdrawn, tightens lasso；
First drag-line of pulling back makes lasso locking device be changed into lock-out state, and the free end of lasso locks at this time；
Further withdraw the first drag-line and the second drag-line so that lasso locking device separates.
Lasso locking device described in the utility model includes damping body, lasso locks sliding block and lasso lock sliding block；
The lasso, which locks sliding block, has slider guide groove, and slider guide groove end is the block knot of prominent level
Structure, is moved with limiting lasso lock sliding block in the slider guide groove that lasso locks sliding block, and locks sliding block two without departing from lasso
The end face at end, so as to ensure the two reliable relative motion.
The lasso lock sliding block has and the matched sliding block buckle structure of slider guide groove, the sliding block buckle structure
After embedded lasso locks the slider guide groove of sliding block, lasso locks sliding block and lasso lock sliding block is only capable of axially moving.
Lasso lock sliding block has the groove for accommodating damping body, and during original state, the damping body is embedded under lasso lock
In slip recess, when withdrawing the first drag-line, lasso lock sliding block proximally slides, and damping body is squeezed and locks and glide from lasso
Skidded off in the groove of block, and be embedded into lasso lock sliding block and lasso lock sliding block between so that collar lock, at this time lasso lock
Sliding block will squeezed air-damping body, so that larger normal pressure is formed to drag-line free end, so as to increase free end in hole
Frictional force, prevents lasso from being unclamped under the tension force of tissue, reaches the effect of lasso size locking.
The groove of lasso lock sliding block described in the utility model has constant slope, and locking is withdrawn in lasso lock sliding block
When, leave groove easy to damping body.
The utility model includes the first draw ring, the second draw ring and connecting line；First drag-line is by the first draw ring and admittedly
The connecting line being scheduled on lasso lock sliding block is connected；The mesoporous of sliding block is locked by second through lasso in the free end of the lasso
Draw ring is connected with the second drag-line.When lasso locking, after tissue set is pricked, the first drag-line and the second drag-line are successively pulled at, then draw ring
It can deform, drag-line will lock sliding block with the lasso of distal end and snare free end is separated from and.
The utility model includes the first inner tube and the second inner tube, and first drag-line passes through the first inner tube, and described second draws
Rope passes through the second inner tube, and first inner tube, the second inner tube are fixed in outer tube to increase the stability in operating process.
Outer tube described in the utility model is bourdon tube.
Lasso described in the utility model is nylon ferrule.
First draw ring and the second draw ring described in the utility model are made of elastomeric metal material, when putting on the first drawing
When power on ring and the second draw ring exceedes threshold value (generally setting 5N~50N), the first draw ring and the second draw ring can be with connection positions certainly
It is dynamic to depart from.
The beneficial effects of the utility model are：The utility model repeats adjustment collar size when extracting tissue, and
Set can effectively ligature fixing organization when pricking, using simple, laborsaving, reliable.
Brief description of the drawings
The utility model is done with reference to the accompanying drawings and detailed description and is further illustrated, the utility model
Above-mentioned and/or otherwise advantage will become apparent.
Fig. 1 is the utility model structure diagram.
Fig. 2 is schematic diagram when withdrawing the second drag-line 3.
Fig. 3 is schematic diagram when withdrawing the first drag-line 1.
Fig. 4 is release conditions schematic diagram.
Fig. 5 is lasso lock sliding block structure diagram.
Embodiment
As shown in Figure 1, the utility model discloses a kind of lasso apparatus for ligating, including the first drag-line 1, the first draw ring 2,
Two drag-lines 3, the second draw ring 4, lasso 5, lasso locking device 6, the first inner tube 7, the second inner tube 8 and bourdon tube 9, its feature exist
In the lasso locking device 6 includes damping body 10, lasso locks sliding block 11 and lasso lock sliding block 12, described 5 one end of lasso
For fixing end, it is fixed on lasso lock sliding block 12, first drag-line 1 is glided by the first draw ring 2 with being fixed on lasso lock
Wire loop 13 on block 8 is connected,
5 other end of lasso is free end, free end through lasso lock the mesoporous of sliding block 11 by the second draw ring 4 with
Second drag-line 3 is connected,
The damping body 10 is embedded in lasso and locks among sliding block 11 and lasso lock sliding block 12,
First drag-line 1 passes through the first inner tube 7, and second drag-line 3 passes through the second inner tube 8, first inner tube 7,
Second inner tube 8 is fixed in bourdon tube 9.Lasso described in the utility model, which locks sliding block 11, has slider guide groove 14, this implementation
It is dovetail groove in example, 14 end of slider guide groove is the stop block structure 15 of prominent level, to limit lasso lock sliding block 12
Movement in the slider guide groove 14 of sliding block 11 is locked in lasso, and the end face at 11 both ends of sliding block is locked without departing from lasso, so as to protect
The two reliable relative motion of card.As shown in figure 3, lasso lock sliding block 12 has the groove 17 for accommodating damping body 10, initial shape
During state, the damping body 10 is embedded in lasso lock 12 groove 17 of sliding block, when withdrawing the first drag-line 1, lasso lock sliding block 12
Proximally slide, damping body 10 is squeezed and is skidded off from the groove 17 of lasso lock sliding block 12, and is embedded into lasso and locks
Between sliding block 11 and lasso lock sliding block 12 so that collar lock.Lasso lock 12 groove 17 of sliding block has constant slope
18, when lasso lock sliding block withdraws locking, groove is left easy to damping body.
As shown in figure 5, lasso lock sliding block 12 described in the utility model has and 14 matched sliding block of slider guide groove
Buckle structure 16, after the insertion of sliding block buckle structure 16 lasso locks the slider guide groove 14 of sliding block, lasso locks sliding block 11
It is only capable of axially moving with lasso lock sliding block 12.
Lasso 5 described in the utility model is nylon ferrule.
First draw ring, 2 and second draw ring 4 described in the utility model is made of elastomeric metal material.
When in use, lasso is pushed into lesion locations under the Lookout assist effect of endoscope first, as shown in Figure 1,
For the utility model original state, then control the second drag-line 3 adjustment lasso size to be adapted for extracting tissue, complete tissue set
After taking, the second drag-line 3 is withdrawn, tightens lasso, as shown in Fig. 2, so as to achieve the purpose that tissue set is pricked, the first drag-line of pulling back at this time
1, lasso lock sliding block is proximally slided until collar lock, as shown in Figure 3.
The first drag-line 1 is pulled on, departs from the first draw ring 2；Then pull back the second drag-line 3, make the second draw ring 4 and lasso
Free end departs from, as shown in figure 4, when putting on the power on the first draw ring and the second draw ring and exceeding threshold value 15N, the first draw ring with
Second draw ring can be automatically disengaged with connection position, finally withdraw from the operation devices such as drag-line.
Although the utility model is illustrated and described with regard to preferred embodiment, those skilled in the art should manage
Solution, without departing from the claim limited range of the utility model, the utility model can be carried out various change and
Modification.
Claims (8)
1. a kind of lasso apparatus for ligating, it is characterised in that including the first drag-line (1), the second drag-line (3), lasso (5), lasso lock
Determine device (6) and outer tube (9)；
Described lasso (5) one end is fixed on lasso locking device (6), and the other end of lasso (5) is free end, and free end is worn
Cross lasso locking device (6) and with the separable connection of second drag-line (3)；
First drag-line (1) and the second drag-line (3) are arranged on outer tube (9) inside, and the lasso locking device (6) is arranged on outer
Manage (9) front end, the first drag-line (1) and the separable connection of the lasso locking device (6)；
When lasso locking device (6) is in release conditions, second drag-line (3) is adjusted by withdrawing the free end of lasso (5)
The size of lasso (5) makes it extract object；
After completion is extracted, the second drag-line (3), tightening lasso (5) are withdrawn；
The first drag-line (1) of pulling back makes lasso locking device (6) be changed into lock-out state, and the free end of lasso (5) locks at this time；
Further withdraw the first drag-line (1) and the second drag-line (3) so that lasso locking device (6) separates.
2. a kind of lasso apparatus for ligating according to claim 1, it is characterised in that the lasso locking device (6) includes
Damping body (10), lasso lock sliding block (11) and lasso lock sliding block (12)；
The lasso, which locks sliding block (11), has slider guide groove (14), and slider guide groove (14) end is prominent level
Stop block structure (15), movement in the slider guide groove (14) of sliding block (11) is locked to limit lasso lock sliding block (12) in lasso,
And the end face at sliding block (11) both ends is locked without departing from lasso；
The lasso lock sliding block (12) has sliding block buckle structure (16) matched with slider guide groove (14), the sliding block
After the embedded lasso of buckle structure (16) locks the slider guide groove (14) of sliding block (11), lasso is locked under sliding block (11) and lasso lock
Sliding block (12) is only capable of axially moving,
Lasso lock sliding block (12) has the groove (17) for accommodating damping body (10), and during original state, the damping body (10) is embedding
Entering in lasso lock sliding block (12) groove (17), when withdrawing the first drag-line (1), lasso lock sliding block (12) proximally slides,
Damping body (10) is squeezed and is skidded off from the groove (17) of lasso lock sliding block (12), and is embedded into lasso and locks sliding block
(11) between lasso lock sliding block (12) so that collar lock.
3. a kind of lasso apparatus for ligating according to claim 2, it is characterised in that the lasso locks sliding block (12) groove
(17) there is constant slope (18).
4. a kind of lasso apparatus for ligating according to claim 3, it is characterised in that including the first draw ring (2), the second draw ring
(4) and connecting line (13)；
First drag-line (1) is connected by the first draw ring (2) with the connecting line (13) being fixed on lasso lock sliding block (12)；
The mesoporous that the free end of the lasso (5) locks sliding block (11) through lasso passes through the second draw ring (4) and the second drag-line (3)
It is connected.
5. a kind of lasso apparatus for ligating according to claim 4, it is characterised in that including in the first inner tube (7) and second
To manage (8), first drag-line (1) passes through the first inner tube (7), and second drag-line (3) passes through the second inner tube (8), and described first
Inner tube (7), the second inner tube (8) are fixed in outer tube (9).
6. a kind of lasso apparatus for ligating according to claim 1, it is characterised in that the outer tube (9) is bourdon tube.
7. a kind of lasso apparatus for ligating according to claim 1, it is characterised in that the lasso (5) is nylon ferrule.
8. a kind of lasso apparatus for ligating according to claim 4, it is characterised in that first draw ring (2) and second is drawn
Ring (4) is made of elastomeric metal material, when putting on the power on the first draw ring (2) and the second draw ring (4) and exceeding threshold value,
First draw ring (2) and the second draw ring (4) can be automatically disengaged with connection position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620991178 | 2016-08-29 | ||
| CN2016209911781 | 2016-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207270361U true CN207270361U (en) | 2018-04-27 |
Family
ID=61991699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720289551.3U Active CN207270361U (en) | 2016-08-29 | 2017-03-23 | A kind of lasso apparatus for ligating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207270361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236178A (en) * | 2016-08-29 | 2016-12-21 | 南京微创医学科技股份有限公司 | A kind of lasso apparatus for ligating |
-
2017
- 2017-03-23 CN CN201720289551.3U patent/CN207270361U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236178A (en) * | 2016-08-29 | 2016-12-21 | 南京微创医学科技股份有限公司 | A kind of lasso apparatus for ligating |
| CN106236178B (en) * | 2016-08-29 | 2019-01-25 | 南京微创医学科技股份有限公司 | A kind of lasso apparatus for ligating |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210061, No. 10, hi tech three road, Pukou hi tech Industrial Development Zone, Nanjing, Jiangsu Patentee after: Nanwei Medical Technology Co., Ltd Address before: 210061, No. 10, hi tech three road, Pukou hi tech Industrial Development Zone, Nanjing, Jiangsu Patentee before: Micro-Tech (Nanjing) Co., Ltd. |