CN202821618U

CN202821618U - Peritoneoscope renal artery sympathetic denervation ablation catheter

Info

Publication number: CN202821618U
Application number: CN 201220463002
Authority: CN
Inventors: 屈百鸣; 金钦阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2013-03-27
Anticipated expiration: 2022-09-12

Abstract

The utility model discloses a peritoneoscope renal artery sympathetic denervation ablation catheter, and belongs to the technical field of medical apparatus and instruments. The peritoneoscope renal artery sympathetic denervation ablation catheter is characterized in that a major structure is formed by an ablation hook seat, a catheter and an operation handle in a connecting mode. A spiral ablation hook is arranged at the front end of the ablation hook seat in a matched mode. A thermosensitive element is arranged on the inner side of the spiral ablation hook in a matched mode. A connector which is in matched connection with the spiral ablation hook and the thermosensitive element is arranged at the tail end of the operation handle. According to the peritoneoscope renal artery sympathetic denervation ablation catheter, renal artery can be clearly exposed under a peritoneoscope, and therefore advantages are created for renal artery sympathetic denervation ablation under peritoneoscope erthyphoria. The spiral ablation hook is covered on the renal artery in an annular mode, ablation energy is enabled to directly act on sympathetic net clump in an outer wall of the renal artery, energy loss in existing renal artery sympathetic denervation wall-penetrating ablation is reduced, energy requirements of ablation are reduced, and ablation degree can be individually controlled by a user according to temperature, and therefore operation safety and reliability are improved.

Description

Peritoneoscope goes the renal artery sympathetic nerve to melt pipe

Technical field

This utility model belongs to technical field of medical instruments, is specially peritoneoscope and goes the renal artery sympathetic nerve to melt pipe.

Background technology

In the world early than 20011, the Henry Krum of Australia etc. has reported that Radiofrequency Current Catheter Ablation removes kidney sympathetic nerve art (Catheter-based renal sympathetic denervation, abbreviation RSD) new technique for the treatment of intractable hypertension, selectively cut off the kidney sympathetic nerve by radio-frequency (RF) ablation, and do not affect other abdominal paries, pelvis or lower limb nerve domination, 47 routine patients accept the operation of kidney sympathetic nerve radio-frequency (RF) ablation, and the result shows that the operation of percutaneous catheter kidney sympathetic nerve radio-frequency ablation procedure can make intractable hypertension significantly continue to reduce.After this in several years, Medtronic (Medtronic) and sage still reach companies such as (St.Jude) and have all released separately RSD equipment.But known, the sympathetic nerve of kidney imports into efferent fiber and is distributed in the outer shallow table connective tissue of renal artery wall; Sympathetic nerve and renal artery companion row are network structure and are paperwrapped in renal artery.Effectively denervation should thoroughly destroy its network structure, but not point, the face of RSD technology melt thoroughly denervation at present.The more important thing is that RSD is for to melt from Wall of Artery, the energy of the saturating wall of needs formation destroys the neutral net at vessel outer wall, may bring the danger such as perforation, thrombosis, renal artery stenosis and aneurysm thereupon.

The utility model content

For the above-mentioned problems in the prior art, the purpose of this utility model is to design provides a kind of peritoneoscope to go the renal artery sympathetic nerve to melt the technical scheme of pipe, its spiral type melts shackle shape parcel renal artery, ablation energy is directly acted on the sympathetic network clump of renal artery outer wall, energy loss when having reduced the saturating wall of existing RSD and melting has reduced the energy demand of melting; And degree of ablation is temperature control voluntarily, has improved operation safety, reliability.

Described peritoneoscope goes the renal artery sympathetic nerve to melt pipe, it is characterized in that connecting and composing agent structure by melting hook seat, conduit, lever, melting hook seat front end is equipped with spiral type and melts hook, spiral type melts the inner face that hook contacts with renal artery and is equipped with temperature-sensitive element, and the setting of lever afterbody and spiral type melt the interface that hook and temperature-sensitive element are connected.

Described peritoneoscope goes the renal artery sympathetic nerve to melt pipe, it is characterized in that spiral type melts the inner face middle part that hook contacts with renal artery caulking groove is set, and temperature-sensitive element is embedded in caulking groove.

Described peritoneoscope goes the renal artery sympathetic nerve to melt pipe, it is characterized in that the described hook seat that melts adopts pottery to make, and described conduit, lever all adopt insulant to make.

Described peritoneoscope goes the renal artery sympathetic nerve to melt pipe, characterized by further comprising controller, loop electrode plate, and the loop electrode plate is connected by wire A and controller, and interface is connected by wire B and controller.

Above-mentioned peritoneoscope goes the renal artery sympathetic nerve to melt pipe, can know the exposure renal artery under the peritoneoscope, thereby for the renal artery under the peritoneoscope direct-view goes sympathetic melting to create advantage, its spiral type melts shackle shape parcel renal artery, ablation energy is directly acted on the sympathetic network clump of renal artery outer wall, energy loss when having reduced the saturating wall of existing RSD and melting has reduced the energy demand of melting; And degree of ablation is temperature control voluntarily, has improved operation safety, reliability.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is that spiral type melts hook inner face partial structurtes sketch map;

Fig. 3 is a kind of specific embodiment structural representation of the present utility model;

Among the figure: the 1-spiral type melts hook, 2-melts hook seat, 3-conduit, 4-lever, 5-interface, 6-temperature-sensitive element, 7-controller, 8-wire B, 9-wire A, 10-loop electrode plate.

The specific embodiment

The utility model is described in further detail below in conjunction with Figure of description.

As shown in the figure, this peritoneoscope goes the renal artery sympathetic nerve to melt pipe and connects and composes agent structure by melting hook seat 2, conduit 3, lever 4, melting hook seat 2 front ends is equipped with spiral type and melts hook 1, spiral type melts hook 1 inner face and is equipped with temperature-sensitive element 6, and lever 4 afterbody settings and spiral type melt the interface 5 that hook 1 and temperature-sensitive element 6 are connected.Spiral type melts hook 1 inner face middle part caulking groove is set, and temperature-sensitive element 6 is embedded in caulking groove, the temperature when temperature-sensitive element 6 controls are melted.The described hook seat 2 that melts adopts pottery to make, and is the round blunt shape shape, prevents the damaged tissue blood vessel.Described conduit 3, lever 4 all adopt insulant to make, and be light and certain support force arranged;

The connection wire that spiral type melts hook 1, temperature-sensitive element 6 is arranged in conduit 3, the lever 4, has certain gap, mutually insulated between this connection wire and conduit 3, lever 4 wall bodies.Spiral type melts hook 1 can be stablized and collude firm renal artery, and row annular segment denervation melts, and successful ablation once can thoroughly be destroyed the renal artery wall sympathetic nerve network clump of the adherent sections of sacculus, simplifies operation technique, raises the efficiency.

This peritoneoscope goes the renal artery sympathetic nerve to melt pipe can also arrange controller 7, loop electrode plate 10, and loop electrode plate 10 is connected by wire A9 and controller 7, and interface 5 is connected by wire B8 and controller 7.Controller 7 can be controlled parameters, and loop electrode plate 10 is positioned over the clinostatism patient and carries on the back down during use, melts hook 1 with spiral type and forms current loop.Its using method is as described below: loop electrode plate 10 is positioned over the clinostatism patients back, close contact skin before the art; Conventional retroperitoneal mirror approach, set up the pneumoretroperitoneum space after, chorista exposes renal artery; Push spiral type via conduit 3 and melt hook 1 near renal artery, the crotch that under the direct-view spiral type is melted hook 1 colludes and blocks renal artery, loop electrode plate 10, spiral type melt hook 1 formation current loop after the energising, by controller 7 temperature are increased to about 60 ℃ and observe after the row circumferential ablation; In case of necessity, again melt in other positions of renal artery; Repeat above-mentioned steps, melt the contralateral kidney sympathetic nerve.

Claims

1. peritoneoscope goes the renal artery sympathetic nerve to melt pipe, it is characterized in that connecting and composing agent structure by melting hook seat (2), conduit (3), lever (4), melting hook seat (2) front end is equipped with spiral type and melts hook (1), spiral type melts hook (1) inner face and is equipped with temperature-sensitive element (6), and lever (4) afterbody setting and spiral type melt the interface (5) that hook (1) and temperature-sensitive element (6) are connected.

2. peritoneoscope as claimed in claim 1 goes the renal artery sympathetic nerve to melt pipe, it is characterized in that spiral type melts hook (1) inner face middle part caulking groove is set, and temperature-sensitive element (6) is embedded in caulking groove.

3. peritoneoscope as claimed in claim 1 goes the renal artery sympathetic nerve to melt pipe, it is characterized in that the described hook seat (2) that melts adopts pottery to make, and described conduit (3), lever (4) all adopt insulant to make.

4. peritoneoscope as claimed in claim 1 goes the renal artery sympathetic nerve to melt pipe, characterized by further comprising controller (7), loop electrode plate (10), loop electrode plate (10) is by wire A(9) be connected with controller (7), interface (5) is by wire B(8) be connected with controller (7).