CN202751442U - Open type reticular radiofrequency ablation pole - Google Patents
Open type reticular radiofrequency ablation pole Download PDFInfo
- Publication number
- CN202751442U CN202751442U CN 201220410826 CN201220410826U CN202751442U CN 202751442 U CN202751442 U CN 202751442U CN 201220410826 CN201220410826 CN 201220410826 CN 201220410826 U CN201220410826 U CN 201220410826U CN 202751442 U CN202751442 U CN 202751442U
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- metal net
- opening
- push
- ablation electrode
- style
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Abstract
The utility model discloses an open type reticular radiofrequency ablation pole. The open type reticular radiofrequency ablation pole comprises a handle (1) and a push-pull rod (2), wherein the push-pull rod (2) can shift in an inner pipe of the handle (1), and particularly the handle (1) is connected with a sheathing pipe (3), the push-pull rod (2) is connected with one end of a multistrand inner core (4) in the sheathing pipe (3), a metallic mesh grid (6) capable of keeping the diameter is connected with the other end of the multistrand inner core through a front tip (5), one end of a spring (7) is connected with the front tip (5), the other end of the spring (7) is connected with the handle (1) and the multistrand inner core (4) can shift forward and backward synchronously with the push-pull rod (2). The opening type reticular radiofrequency ablation pole is capable of adjusting and controlling the diameter of the reticular radiofrequency ablation pole and equally distributing the radiofrequency energy on each griding and panel point of the pole.
Description
Technical field:
This utility model belongs to medical apparatus and instruments, specifically a kind of netted radio-frequency ablation electrode for the bronchus of human body different thicknesses being carried out radio-frequency ablation procedure.
Background technology:
Bronchial asthma (lower be called for short asthma) is a kind of disease take the panting of outbreak repeatedly, uncomfortable in chest, dyspnea, cough as cardinal symptom, and the patient has airway hyperreactivity and chronic airway inflammation.Chronic asthma is take Airway Remodeling as principal character, comprises that airway walls thickens, mucous gland and goblet cell increases, blood vessel hyperplasia, the most important thing is the airway smooth muscle hypertrophy; Acute asthma then has multiple motivating factor, generally shows as airway smooth muscle and shrinks the airway constriction that causes.It is the determiner that causes bronchoconstriction that airway smooth muscle shrinks, and the participation of smooth muscle makes becomes possibility with it as the treatment target spot.Induction type anti-inflammatory agent (comprising glucocorticoid) and long acting beta agonists are the main medicines of severe asthma in the treatment, but a lot of patients with severe symptoms are insensitive to this treatment, by reduce the technology of airway smooth muscle contractility and high response to the therapeutic heat of airway walls transfer controlled through the bronchus radio-frequency ablation procedure, this technology can reduce airway smooth muscle quantity, thereby make the invalid asthmatic patient remission of general treatment, acute exacerbation reduces, but existing ablating electrode can only be realized a little or the radio-frequency (RF) ablation of line contact, and operating time is long and cause operation not thorough.
Radio-frequency ablation procedure also is malignant tumor minimally-invasive treatment mode commonly used, and cardinal principle is to produce enough heats by radio-frequency current, makes tissue that coagulation necrosis occur.In recent years, radio-frequency (RF) ablation also is applied to treating hemangioma and other body lumen diseased region, has tentatively shown the advantages such as curative effect is definite, safe, wound is little, relapse rate is low, has a good application prospect.
Summary of the invention:
Goal of the invention of the present utility model is to disclose a kind of capable of regulating and the netted radio-frequency ablation electrode diameter of control, make netted radio-frequency ablation electrode all obtain the adherent pressure that suits to the bronchus of different thicknesses or other body lumen diseased region, radio-frequency (RF) energy is evenly distributed on each grid of electrode and the opening netted radio-frequency ablation electrode of node.
Realize that technical solution of the present utility model is as follows: comprise handle and push-pull bar that can displacement in the inner tube of handle, key is that handle is connected with the sheath pipe, multiply inner core one end in the sheath pipe is connected with push-pull bar, its other end can keep the metal net of diameter to be connected through front end and, spring one end is connected with front end, its other end is connected with handle, and the multiply inner core can move forward and backward synchronously with push-pull bar.
The front end of described metal net is the opening shape, and the rear end is shunk gradually with front end and is connected, and is cylindric between the front and back end, and metal net is formed by metal material braiding of the same race or formed by metal material braiding not of the same race.
The circular cylinder shaped portion of described metal net has at least one lax depression section, makes metal net form at least two sections structure.
Described metal net has the cylindrical section of different-diameter, and the diameter of the leading portion of metal net is less than the diameter of back segment.
Described depression section is braiding structure or is non-woven structure.
Described multiply inner core is parallel to be provided with lead-in wire, and the front end of lead-in wire is provided with temperature sensor.
Described temperature sensor is located at the inner chamber of front end.
Described temperature sensor is located on the grid of metal net, and temperature sensor is at least more than one.
The front end surface of described push-pull bar has the indication metal net to release the scale mark of sheath pipe distance.
This utility model is by the diameter of accurate adjustment and control mesh electrode, make the body lumen of electrode pair different thicknesses all obtain the adherent pressure that suits, thereby the assurance radio system is relatively constant to the tracheal wall impedance, make radio frequency output energy stabilization, overcome that prior art can only realize a little or the defective of the radio-frequency (RF) ablation of line contact, simultaneously because whole wire netting conduction, its radio-frequency (RF) energy is evenly distributed on each grid of wire netting and node, be equivalent to increase numerous electrode points, can realize finishing fast, continuously, thereby the uniform radiofrequency ablation therapy operation of Energy distribution reduces operating time greatly, is applicable to treat hemangioma and other body lumen diseased region.
Description of drawings:
Fig. 1 is the structural representation of an embodiment of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 be among Fig. 1 end portion analyse and observe enlarged diagram.
Fig. 4 is the cutaway view at the A-A position among Fig. 3.
Fig. 5 is the structural representation of another embodiment of wire netting 6.
Fig. 6 is the again structural representation of an embodiment of wire netting 6.
Fig. 7 is the again structural representation of an embodiment of the present utility model.
The specific embodiment:
See also Fig. 1～Fig. 7, specific embodiment of the utility model is as follows: comprise handle 1 and push-pull bar 2 that can displacement in the inner tube of handle 1, key is that handle 1 is connected with sheath pipe 3, multiply inner core 4 one ends in the sheath pipe 3 are connected with push-pull bar 2, its other end can keep the metal net 6 of diameter to be connected through front end 5 and, spring 7 one ends are connected with front end 5, and its other end is connected with handle 1, and multiply inner core 4 can move forward and backward synchronously with push-pull bar 2.Described handle 1, sheath pipe 3 and push-pull bar 2 are made (such as nylon for plastic material, ABS, PC etc.), the front end of the rear end of sheath pipe 3 and handle 1 is affixed, push-pull bar 2 can carry out displacement in the inner tube of handle 1, sheath pipe 3 built-in one is surrounded with the multiply inner core 4 of helical spring 7, multiply inner core 4 forms (shown in Figure 4) by a metal inside 16 and 2～10 high conductivity metal silk 15 strands, metal inside 16 is stainless steel silk, high conductivity metal silk 15 is gold-plated or silver-gilt copper wire etc., the rigidity that spring 7 can increase multiply inner core 4 also can participate in conduction simultaneously or not participate in conduction, the front end of multiply inner core 4 and spring 7 is with affixed with a front end 5, the rear end that multiply inner core 4 is connected with spring is all affixed with the front end of push-pull bar 2 and be connected with the electrode socket 14 of push-pull bar 2 by cable, and the external diameter of spring 7 is less than the internal diameter of sheath pipe 3 and can be at sheath pipe 3 interior slide displacements; Front end 5 is made (shown in Figure 3) for metal material, cylinder stack by two different-diameters consists of, wherein the front end face of large diameter cylinder offers an annular groove to be used for affixed metal net 6, the external diameter of large diameter cylinder is slightly less than in the internal diameter of sheath pipe 3, there is a depression rear end of small-diameter circular cylinder, form the inner chamber of front end 5,11 of temperature sensors place this inner chamber and are solidificated in inner chamber with heat-conducting glue, two high conductivity metal silks 15 in the multiply inner core 4 are removed with the passage as the lead-in wire 12 of temperature sensor 11,12 lead-in wires 12 that then go between are parallel with multiply inner core 4 draws and is connected with the electrode socket 14 of push-pull bar 2, the front end of lead-in wire 12 is connected with temperature sensor 11, the front end of multiply inner core 4 stretches in the inner chamber and is welded as a whole with the rear end of front end 5, and the front end of spring 7 also is welded as a whole with the rear end of front end 5; Metal net 6 is formed by the platinum wire intersection mixed weaving of many niti-shaped memorial alloy silks and many high conductivities, the niti-shaped memorial alloy silk makes metal net 6 have prefabricated shape memory function, platinum wire then guarantees the radio frequency conductivity of metal net 6, or metal net 6 is formed by many niti-shaped memorial alloy silk interlacings, metal net 6 is made as reticulate body (Fig. 1 of a style of opening in advance, shown in Figure 2), be that front end is the opening shape, shrink gradually the rear end and annular groove and front end 5 by front end 5 are welded as a whole, metal net 6 be when launching shape fully form between its front and back end opening cylindric, when metal net 6 is in complete deployed condition, front end 5 stretches out from the front port of sheath pipe 3, if spur gradually push-pull bar 2, metal net 6 is driven along with the rollback of spring 7 and multiply inner core 4 front end to sheath pipe 3 moves by front end 5, metal net 6 contacts the front port of sheath pipe 3, owing to front end 5 rollback that keeps forces the compressed diameter that makes its preset shape of metal net 6 to diminish gradually to be drawn in the sheath pipe 3, when discharging metal net 6, then promote push-pull bar 2, release gradually from sheath pipe 3 front ends being in the metal net 6 that is contraction state in the sheath pipe 3, until metal net 6 launches fully, metal net 6 also can be made as opening semiellipse shape or hemispherical in advance; The circular cylinder shaped portion of above-mentioned metal net 6 has a lax depression section 8, make metal net 6 form the structure (shown in Figure 5) of two sections of front and back, namely the grid of the depression section 8 between the two sections dictyosomes in front and back strengthens and forms lax braiding structure to center of circle indent, or the depression section between the two sections dictyosomes in above-mentioned front and back 8 forms non-woven structure for straight monofilament state, and can also can be made as the depression section 8 that relaxes a plurality of as required, consist of the structure of multistage, when the back segment part of pulling metal net 6 during push-pull bar 2 at first by stretching and deformation occurs gradually, because the existence of depression section 8 still can make the leading portion of metal net 6 partly keep prefabricated cylindric, until depression section 8 by the fully stretching leading portion part of metal net 6 that just can make deformation is occured gradually, not only sectional kept diameter but also easier in the wire netting 6 income sheath pipes 3; Shown in Figure 6, above-mentioned metal net 6 is comprised of the cylindrical section of different-diameter, the diameter of its leading portion 9 is less than the diameter of back segment 10, to adapt to the bronchus of different thicknesses, be provided with a depression section 8 between leading portion 9 and the back segment 10, and back segment 10 also has an again depression section 8, when discharging metal net 6, leading portion 9 is expanded to prefabricated shape, if can contact airway walls fully and bronchus is obtained suitable adherent pressure, then do not need to discharge again back segment 10, then continue back segment 10 is discharged as not contacting airway walls fully, make back segment 10 contact airway walls fully and bronchus is obtained suitable adherent pressure, be convenient to the diameter of rapid adjustment and control metal net 6, the cylindrical section of above-mentioned different-diameter can be made as a plurality of, and depression section 8 is with playing aforesaid effect, and segmentation keeps the better effects if of diameter; For more accurately monitoring the temperature of metal net 6, aforesaid temperature sensor 11 is located on the grid of metal net 6 (shown in Figure 7), temperature sensor 11 is at least more than one, the best is 4～12, a plurality of temperature sensors 11 are divided equally, the flexible surface that is fixed in metal net 6, can arrange in order or staggered, by the quantity of temperature sensor 11 with the many high conductivity metal silks 15 corresponding dismountings in the multiply inner core 4 with the passage as the lead-in wire 12 of temperature sensor 11, then the lead-in wire 12 of each temperature sensor 11 is all parallel with multiply inner core 4 draws and is connected with the electrode socket 14 of push-pull bar 2, and the temperature sensor 11 of being located on metal net 5 grids can accurately directly reflect metal net 6 actual temperature value; The front end surface of above-mentioned push-pull bar 2 has indication metal net 6 to release the scale mark 13 of sheath pipe 3 distances, by push-pull bar 2, when metal net 6 was incorporated into or releases sheath pipe 3, the diameter of metal net 6 changed, and its diameters intuitively shows by scale mark 13.
During use, spur first push-pull bar 2, metal net 6 is taken in the sheath pipe 3 fully, locking device locking by handle 1, again sheath pipe 3 is sent into air flue by bronchial catheter, arriving needs to unlock behind the ablation position, make multiply inner core 4 interior protruding from sheath pipe 3 by observing bronchoscope and promoting push-pull bar 2, along with multiply inner core 4 constantly stretches out forward sheath pipe 3, metal net 6 launches expansion gradually, its netted diameter also begins to change gradually, the numerical value of the diameter of metal net 6 intuitively shows by the scale mark 13 of push-pull bar 2, by adjusting and control the diameter of metal net 6, contact airway walls fully and make it obtain suitable adherent pressure to bronchus until be metal net 6, radiofrequency generator is connected with electrode socket 14, metal net 6 is switched on, because whole metal net 6 conductions, the hyperfrequency that radiofrequency generator is transmitted, mental retardation, radio-frequency (RF) energy is evenly distributed on metal net 6 each grid and nodes, be equivalent to increase numerous electrode points, the variations in temperature of temperature sensor 11 monitoring metal nets 6, utilize feedback to keep target temperature and continue the some time, after the time that radio frequency continues to set, electrode resets and moves to next therapentic part, can realize finishing fast, continuously, thereby the uniform radio-frequency (RF) ablation operation of Energy distribution reduces operating time greatly; After operation was finished, pulling push-pull bar 2 made gradually rollback of multiply inner core 4, metal net 6 is taken in the sheath pipe 3 and with bronchial catheter fully together withdrawn from human body, and surgery is finished.Be used for the treatment of hemangioma and other body lumen diseased region (such as malignant tumor), can this utility model be sent to the body lumen diseased region by the scope conduit, produce enough heats by radio-frequency current, make pathological tissues generation coagulation necrosis, its operating process is same as described above, and curative effect is definite, safe, wound is little, relapse rate is low, has a good application prospect.
Claims (9)
1. netted radio-frequency ablation electrode of style of opening, comprise handle (1) and push-pull bar (2) that can displacement in the inner tube of handle (1), it is characterized in that handle (1) is connected with sheath pipe (3), multiply inner core (4) one ends in the sheath pipe (3) are connected with push-pull bar (2), its other end can keep the metal net (6) of diameter to be connected through front end (5) and, spring (7) one ends are connected with front end (5), its other end is connected with handle (1), and multiply inner core (4) can move forward and backward synchronously with push-pull bar (2).
2. by the netted radio-frequency ablation electrode of style of opening claimed in claim 1, the front end that it is characterized in that described metal net (6) is the opening shape, the rear end is shunk gradually with front end (5) and is connected, be cylindric between the front and back end, metal net (6) is formed by metal material braiding of the same race or is formed by metal material braiding not of the same race.
3. by claim 1 or the netted radio-frequency ablation electrode of 2 described styles of opening, it is characterized in that the circular cylinder shaped portion of described metal net (6) has at least one lax depression section (8), make metal net (6) form at least two sections structure.
4. by the netted radio-frequency ablation electrode of style of opening claimed in claim 3, it is characterized in that described metal net (6) has the cylindrical section of different-diameter, the diameter of the leading portion (9) of metal net (6) is less than the diameter of back segment (10).
5. by the netted radio-frequency ablation electrode of style of opening claimed in claim 4, it is characterized in that described depression section (8) for braiding structure or be non-woven structure.
6. by the netted radio-frequency ablation electrode of style of opening claimed in claim 5, it is characterized in that parallel the drawing of described multiply inner core (4) is provided with lead-in wire (12), the front end of lead-in wire (12) is provided with temperature sensor (11).
7. by the netted radio-frequency ablation electrode of style of opening claimed in claim 6, it is characterized in that described temperature sensor (11) is located at the inner chamber of front end (5).
8. by the netted radio-frequency ablation electrode of style of opening claimed in claim 7, it is characterized in that described temperature sensor (11) is located on the grid of metal net (6), temperature sensor (11) is at least more than one.
9. by the netted radio-frequency ablation electrode of style of opening claimed in claim 8, it is characterized in that the front end surface of described push-pull bar (2) has indication metal net (6) to release the scale mark (13) of sheath pipe (3) distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410826 CN202751442U (en) | 2012-08-17 | 2012-08-17 | Open type reticular radiofrequency ablation pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410826 CN202751442U (en) | 2012-08-17 | 2012-08-17 | Open type reticular radiofrequency ablation pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202751442U true CN202751442U (en) | 2013-02-27 |
Family
ID=47730641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220410826 Expired - Lifetime CN202751442U (en) | 2012-08-17 | 2012-08-17 | Open type reticular radiofrequency ablation pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202751442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103584909A (en) * | 2012-08-17 | 2014-02-19 | 王涛 | Open-type meshed radiofrequency ablation electrode |
| CN106913378A (en) * | 2015-11-20 | 2017-07-04 | 韦伯斯特生物官能(以色列)有限公司 | The ablating electrode of height perforate |
-
2012
- 2012-08-17 CN CN 201220410826 patent/CN202751442U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103584909A (en) * | 2012-08-17 | 2014-02-19 | 王涛 | Open-type meshed radiofrequency ablation electrode |
| CN103584909B (en) * | 2012-08-17 | 2016-01-27 | 王涛 | Open mesh radio-frequency ablation electrode |
| CN106913378A (en) * | 2015-11-20 | 2017-07-04 | 韦伯斯特生物官能(以色列)有限公司 | The ablating electrode of height perforate |
| US11160607B2 (en) | 2015-11-20 | 2021-11-02 | Biosense Webster (Israel) Ltd. | Hyper-apertured ablation electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130227 Effective date of abandoning: 20160127 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |