CN108186110A - A kind of scope high-frequency electrical cutting apparatus - Google Patents
A kind of scope high-frequency electrical cutting apparatus Download PDFInfo
- Publication number
- CN108186110A CN108186110A CN201810111802.8A CN201810111802A CN108186110A CN 108186110 A CN108186110 A CN 108186110A CN 201810111802 A CN201810111802 A CN 201810111802A CN 108186110 A CN108186110 A CN 108186110A
- Authority
- CN
- China
- Prior art keywords
- cutting wire
- runner
- outer sheath
- handle
- frequency electrical
- Prior art date
- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00529—Liver
- A61B2018/00535—Biliary tract
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/0091—Handpieces of the surgical instrument or device
Abstract
A kind of scope high-frequency electrical cutting apparatus, including handle set, handle, electrode, nut, runner, guidewire lumen connector, injecting cavity connector, outer sheath, cutting wire, metal sleeve；Handle is assemblied on handle set and reciprocable, electrode is fixed on handle, handle set is connect with nut proximal end, nut distal end is connect with outer sheath proximal end, outer sheath is multi-cavity structure, and the connector of guidewire lumen connector, injecting cavity connector or the two unification is provided in outer sheath, and cutting wire is in the cutting wire intracavitary of outer sheath, connect metal tube outside cutting wire proximal end across runner aperture and be fixed on electrode, cutting wire distal end is fixed at the cutter head of outer sheath distal end；It is characterized in that, cutting wire can be moved forward and backward under handle drive inside runner；Cutting wire can be with the rotation of runner in the range of 360 ° synchronous rotary, so as to drive the cutter head of outer sheath distal end rotate synchronously.Have the advantages that it is simple and reliable for structure, easy to operate, so as to shorten operating time, lower operating difficulty.
Description
Technical field
The present invention relates to a kind of medical treatment for human body pancreatic duct system cannula and Endoscopic Sphincterotomy of Duodenal Papilla Attached art
Equipment.Belong to medical instruments field.
Background technology
Duodenum endoscopic papillosphincterotomy（EST）It is on the basis of endoscopic retrograde cholangiopancreatography
（ERCP）On the basis of a kind of Minimally Invasive Surgery for growing up, be an important treatment technology in scope field, at present
Primary step and the step of most important, risk highest in treatment ERCP through becoming most or all.EST
Duodenofiberscope flesh incision must be carried out suitable for diseases such as drainages in choledocholithiasis, stenosis of bile duct expansion, biliary tract rack
Patient.
It is the necessary instrument of EST arts with high-frequency electrical cutting apparatus the present invention relates to a kind of scope, existing instrument knot in the market
Structure mainly includes Handleset, high-frequency electrode, guidewire lumen connector, injecting cavity connector, cutting wire, multi-lumen tube etc., cutting wire distal end
Outer sheath distal end is fixed on, multi-lumen tube distal end is cutter head position.High-frequency electrode be mounted on handle on, multi-lumen tube, cutting wire with
Handle links together, by handle part manipulation complete cutting wire push pull maneuver, guidewire lumen connector, injecting cavity connector with
The corresponding cavity connection of multi-lumen tube.
In EST surgical procedures, biopsy duct of the high-frequency electrical cutting apparatus front end through scopes such as duodenoscope is inserted into until
The duodenal site of the patient, handle part cutting wire of pulling back make cutter head end archwise, and high-frequency electrode connection electric knife leads to
Electricity completes the incision of duodenofiberscope sphincter.The optimum orientation of duodenofiberscope bile duct stenosis is 10 ~ 12 points of position,
In practical surgical procedure, since each one situation is inconsistent：It situations such as teat placement, form, lesion difference etc., is needed in operation
The actual conditions that follow up adjust cutter head position.Also, after choledochus is entered, when carrying out left and right common hepatic duct and surpassing selection operation, doctor's phase
It hopes cutter head direction energy flexible rotating, helps intubation.
Invention content
In order to solve the above problem of the prior art, the present invention provides a kind of scope high-frequency electrical cutting apparatus, by simple
Structure realize cutter head effective rotation, control cutting wire rotation structure be located at electrode front end, rotational handle is avoided to cause electricity
Twining for connecting line on extremely connects.By special cutting wire material, the multiple rotary in the range of 360 ° of cutting device distal end is realized
It is not broken；And cutter head is rotated with runner Partial synchronization.
In the present invention, proximal end refers under use state, by one end of proximal operator, i.e., close to one end of handle part, distal end
Refer to one end far from operator.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of scope high-frequency electrical cutting apparatus connects including handle set, handle, electrode, nut, runner, guidewire lumen connector, injecting cavity
Head, outer sheath, cutting wire, metal sleeve；Handle is assemblied on handle set and reciprocable, electrode are fixed on handle, hand
Handle seat is connect with nut proximal end, and nut distal end is connect with outer sheath proximal end, and outer sheath is multi-cavity structure, is provided with and leads in outer sheath
The connector of silk chamber connector, injecting cavity connector or the two unification, cutting wire are in the cutting wire intracavitary of outer sheath, outside cutting wire proximal end
Even metal tube passes through runner aperture and is fixed on electrode, and cutting wire distal end is fixed at the cutter head of outer sheath distal end；It is characterized in that,
Cutting wire can be moved forward and backward under handle drive inside runner；Cutting wire can be as the rotation of runner be in the range of 360 °
Synchronous rotary, so as to drive the cutter head of outer sheath distal end rotate synchronously.
Preferably, the cutting wire material can be the one or more compound of Nitinol, chrome-nickel, stainless steel etc.
Material.These materials have excellent rigidity and elasticity, the good synchronous rotary performance of cutting wire are assigned, so as to drive distal end knife
Head rotates synchronously.
Preferably, the cutting wire structure can be same material individual thread, non-same material segmentation engagement individual thread,
The braided wires of same material combination or the braided wires of different materials combination.Single silk material cutting performance is good；It is hemagglutinin to weave silk material
It can be preferably；Segmentation engagement or silk/braided wires of different materials combination can combine the feature performance benefit of different kinds material,
Obtain excellent performance.
Preferably, when the structure that the cutting wire is engaged for the segmentation of not same material, front and rear two sections or multistage difference material
The silk material of matter can be by welding, crimping, the modes such as being glued and link together.
Preferably, when the silk material that the cutting wire is a whole diameter, or the silk material of different section variable diameters.
Preferably, the endoporus of the runner is non-circular structure；The section morphology of metal tube is also the several of non-circular
What shape.After metal tube is packed into runner endoporus, it can realize that circumferentially fixed axial direction of the metal tube inside runner is not fixed.
Preferably, metal tube can be fixed as one by way of holding screw screw thread, splicing, welding with runner, from
And it realizes circumferentially fixed axial direction of the metal tube on runner endoporus and is not fixed.
Preferably, cutting wire is fixed with metal tube, and fixed form can be the modes such as welding, crimping, splicing, riveting.
By above-mentioned, rotate in a circumferential direction runner when, cutting wire synchronous rotary and drive distal end cutter head rotation；Axial drawing handle
When, cutting wire can be moved forward and backward by runner endoporus, pull cutter head archwise.
Compared with the existing technology the advantageous effect of above-mentioned technical proposal is taken to be compared with, the present invention：It is simple in structure, operation spirit
It is living, in surgical procedure, high-frequency electrical cutting apparatus distal end can be realized 360 rapidly0The synchronous adjustment of range reaches ideal cutting
Direction or intubation direction.With the characteristics of simple in structure, easy to operate, shorten operating time and lower operating difficulty, save
Medical expense.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is general structure schematic diagram.
Fig. 2 is structure chart of the cutting wire inside runner in example one.
Fig. 3 is structure chart of the cutting wire inside runner in example two.
Fig. 4 is front and rear two sections of cutting wires fixed form structure chart in example two.
In figure, including 1 handle set, 2 handles, 3 electrodes, 4 nuts, 5 runners, 6 guidewire lumen connectors, 7 injecting cavity connectors, 8 outside
Sheath, 9 cutting wires；10 metal tubes, cutting wire section 901, runner inner hole section 501, single titanium-nickel wire 902, multiply braiding are not
Become rusty steel wire 903.
Specific embodiment
Carry out the specific embodiment that the present invention will be described in detail below in conjunction with the accompanying drawings, but the content of present invention is not limited to these
Embodiment.
A kind of scope high-frequency electrical cutting apparatus, including handle set 1, handle 2, electrode 3, nut 4, runner 5, guidewire lumen connector
6th, injecting cavity connector 7, outer sheath 8, cutting wire 9；Metal tube 10, handle 2 is assemblied on handle set 1 and reciprocable, electrode 3
It is fixed on handle 2, handle set 1 links together with 4 proximal end of nut, and 4 distal end of nut is connect with 8 proximal end of outer sheath, outer sheath 8
For multi-cavity structure, it is connected with guidewire lumen connector 6, injecting cavity connector 7 above, cutting wire 9 is in the cutting wire chamber of outer sheath 8, cuts
9 proximal end of cutting wire passes through runner aperture 501 and is fixed on electrode 3.8 distal end of outer sheath is fixed in 9 distal end of cutting wire.
As shown in Fig. 2, 5 inner hole section 501 of runner is non-circular, such as rectangle, 9 section 901 of cutting wire is circle,
A metal tube 10 is fixed in 9 outside of cutting wire, and cutting wire 9 penetrates metal tube 10, using crimping, welding, is glued, the mode of riveting,
So that cutting wire 9 and metal tube 10 are fixed together.The section of metal tube 10 and 5 inner hole part of runner is non-circular,
Such as rectangle.10 appearance and size of metal tube and the matching of 5 hole size of runner so that metal tube 10 can be transferred to 5 endoporus of runner
In, it can realize back-and-forth motion of the cutting wire 9 in 5 hole of runner；When runner 5 rotates, cutting wire 9 by driven by rotating wheel and
Realize rotation, cutting wire 9 has excellent rigidity and elasticity, the rotation of 9 proximal end of cutting wire, and then drives 9 distal end of cutting wire
Rotation, the rotation of 9 distal end of cutting wire drive the rotation of the rotation, i.e. cutter head of 8 distal end of outer sheath.
Alternatively, as shown in figure 3, cutting wire 9 inside runner 5,5 inner hole section 501 of runner be rectangle structure, cutting wire
9 sections 901 are also rectangle structure, and the length in cutting wire section 901, width are respectively less than the length of 5 endoporus of runner, width, therefore
It can realize back-and-forth motion of the cutting wire 9 in 5 hole of runner.But the length in cutting wire section 901 is more than the width of 5 endoporus of runner
Degree, when rotating wheel 5, cutting wire 9 is driven by runner 5 and realizes rotation.
Alternatively, as shown in figure 4, cutting wire 9 used is the silk material of two sections of different materials and structure composition, proximal segment is non-
The single titanium-nickel wire 902 of reducing, distal ports weave stainless steel wire 903 for multiply, and 903 outer diameter of stainless steel braided wires is 0.10-
1.0mm, length 50-500mm.Titanium-nickel wire 902 and 903 docking site outer cladding metal tube 904 of stainless steel braided wires, in metal tube
904 both ends applied forces make it deform and link together with titanium-nickel wire 902 and stainless steel braided wires 903.
Alternatively, 9 material of cutting wire used is single nitinol alloy wire or stainless steel wire, cutting wire 9 is in distal site 10-
200mm positions are tapered.The distal end of 8 cutting wire chamber of outer sheath is fixed in 9 distal end of cutting wire.When 9 proximal end of cutting wire is by runner
It drives during rotating, cutting wire 9 distally occurs to rotate synchronously and outer sheath 8 is driven distally to rotate, and realizes cutter head
Rotation.
Example in the present invention has the characteristics of simple in structure, technique is easily realized, has and shortens operating time and attenuating hand
The advantages of art difficulty.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (10)
1. a kind of scope high-frequency electrical cutting apparatus, including handle set, handle, electrode, nut, runner, guidewire lumen connector, injecting cavity
Connector, outer sheath, cutting wire, metal sleeve；Handle is assemblied on handle set and reciprocable, electrode are fixed on handle,
Handle set is connect with nut proximal end, and nut distal end is connect with outer sheath proximal end, and outer sheath is multi-cavity structure, is provided in outer sheath
The connector of guidewire lumen connector, injecting cavity connector or the two unification, cutting wire are in the cutting wire intracavitary of outer sheath, cutting wire proximal end
Outer even metal tube passes through runner aperture and is fixed on electrode, and cutting wire distal end is fixed at the cutter head of outer sheath distal end；Its feature exists
In cutting wire can be moved forward and backward under handle drive inside runner；Cutting wire can be as the rotation of runner be in 360 ° of models
Enclose interior synchronous rotary, so as to which outer sheath distal end cutter head be driven to rotate synchronously.
2. a kind of scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that the cutting wire material can be
One or more composite materials of Nitinol, chrome-nickel, stainless steel etc..
3. a kind of scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that the cutting wire structure can be
Same material individual thread, the individual thread of non-same material segmentation engagement, the braided wires of same material combination or different materials combination
Braided wires.
4. a kind of scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that the cutting wire is whole same
Diameter or front and rear section reducing.
5. a kind of scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that the cutting wire is material not of the same race
Material segmentation engagement, the silk material of front and rear two sections or multistage unlike material can be by welding, crimping, the modes such as being glued and be connected to one
It rises.
6. a kind of scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that the endoporus of the runner for it is non-just
Circular configuration.
7. a kind of scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that metal tube is in runner internal circumferential
It is fixed to be axially not fixed.
A kind of 8. scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that the fixation of cutting wire and metal tube
Mode can be welding, crimping, splicing, riveting.
9. a kind of scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that the section morphology of metal tube is non-
The geometry of circular.
10. a kind of scope high-frequency electrical cutting apparatus as described in claim 1, which is characterized in that metal tube is connected through a screw thread,
It is glued, the mode of welding is fixed on runner, maintain a fixed axial be not fixed on runner endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111802.8A CN108186110A (en) | 2018-02-05 | 2018-02-05 | A kind of scope high-frequency electrical cutting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111802.8A CN108186110A (en) | 2018-02-05 | 2018-02-05 | A kind of scope high-frequency electrical cutting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108186110A true CN108186110A (en) | 2018-06-22 |
Family
ID=62592811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810111802.8A Pending CN108186110A (en) | 2018-02-05 | 2018-02-05 | A kind of scope high-frequency electrical cutting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108186110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480962A (en) * | 2018-12-20 | 2019-03-19 | 深圳开立生物医疗科技股份有限公司 | A kind of incision knife knife silk |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201524110U (en) * | 2009-11-09 | 2010-07-14 | 安瑞医疗器械(杭州)有限公司 | Rotary hemostatic clip |
| CN206473393U (en) * | 2016-09-02 | 2017-09-08 | 杭州安杰思医学科技有限公司 | A kind of scope tissue dissection device |
-
2018
- 2018-02-05 CN CN201810111802.8A patent/CN108186110A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201524110U (en) * | 2009-11-09 | 2010-07-14 | 安瑞医疗器械(杭州)有限公司 | Rotary hemostatic clip |
| CN206473393U (en) * | 2016-09-02 | 2017-09-08 | 杭州安杰思医学科技有限公司 | A kind of scope tissue dissection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480962A (en) * | 2018-12-20 | 2019-03-19 | 深圳开立生物医疗科技股份有限公司 | A kind of incision knife knife silk |
| CN109480962B (en) * | 2018-12-20 | 2021-07-23 | 深圳开立生物医疗科技股份有限公司 | Cutting wire of cutting knife |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180622 |