CN204219611U - A kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker - Google Patents
A kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker Download PDFInfo
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- CN204219611U CN204219611U CN201420697202.1U CN201420697202U CN204219611U CN 204219611 U CN204219611 U CN 204219611U CN 201420697202 U CN201420697202 U CN 201420697202U CN 204219611 U CN204219611 U CN 204219611U
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Abstract
The utility model discloses a kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker, comprise steel wire body, it is bending and second to bend that the far-end of described steel wire body is provided with continuous print first, and described first bending, the second bending span spacing L is 3-4 ㎝; Described first curved bottom and the second curved bottom are 4.5-5.5 ㎝ at a distance of H1, and the end-to-end distance second curved bottom H2 of described steel wire body is 0.5-1 ㎝.This utility model has that localization method is simple, strong operability, the advantage such as safe and reliable, spacer portion positioning of electrode success rate is carried out up to 100% with this utility model, and each pacing parameter all reaches requirement, the pace-making QRS ripple time limit comparatively apex pace-making obviously narrow, in art, postoperative be showed no severe complication occur and loose electrode placement.
Description
Technical field
This utility model relates to a kind of mini-medical apparatus, is specifically related to a kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker.
Background technology
Perform the operation since American physician Furman in 1958 completes first case right ventricular apical (right ventricular apex, RVA) Pacemaker implantation in the world, right ventricular apical is just always as the conventional implant site of ventricular lead implant surgery.But there is research display in recent years, the ventricular lead implant surgery adopting Right ventricular apical pacing to carry out can change the synchronicity of human body biventricular electricity, cause electric shock in ventricle dynamic abnormal with retraction sequences generation, pace-making local myocardial cell is caused to get muddled with the arrangement closing on position myocardial cell, degenerative change, calcification and myocardial hypertrophy etc., therefore, settle electrode method simple although traditional apex of right ventricle permanent pacing has, eletrode tip is easy to the advantage such as fixing, but along with going deep into of research, more and more evidence display apex pace-making can cause Ventricular activation sequence abnormal, biventricular is shunk and the synchronicity of diastole is lost, thus affect the blood-pumping function of heart, therefore right ventricular apical is not a desirable pacing site.And Right ventricular septum (right ventricular septum, RVS) pace-making is then near Xinier reservoir, can realize " the nearly His' bundle pacing " that require clinically, thus obtain close to the Ventricular activation sequence of human body physiological state and biventricular electricity synchronous, namely the exciting order of outflow tract of right ventricle spacer portion pace-making more meets physiological status.
The guiding steel wire fixed for interventricular septum pacing electrode that at present each producer provides is a simple straight steel wire, with anatomical cardiac without corresponding relation, almost cannot realize the interior accurately location of heart of screw electrode, often cause that operating time is long, doctor and patient X-ray's light exposure large, spacer portion pacing electrode less stable, displacement rate is high, adds the operational difficulty of positioning of electrode.
Utility model content
Technical problem to be solved in the utility model is, overcomes the above defect, provides the tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker that a kind of structure is simple, esy to use, safe and reliable.
In order to solve the above technical problem, a kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker of this utility model, comprise steel wire body, it is bending and second to bend that the far-end of described steel wire body is provided with continuous print first, and described first bending, the second bending span spacing L is 3-4 ㎝; Described first curved bottom and the second curved bottom are 4.5-5.5 ㎝ at a distance of H1, and the end-to-end distance second curved bottom H2 of described steel wire body is 0.5-1 ㎝.
Described in the utility model first bending span spacing 3-4cm, its length is suitable to the horizontal range of right ventricular inflow tract endocardium pacing interventricular septum with tricuspid annulus, interventricular septum efferent tract can be arrived and make full use of the second curved recoil formed with right ventricle wall and stablize by helical tip electrode and contact by lead screw eletrode tip, be beneficial to spiral Stable Release; Second bending span spacing 3-4cm, its distance is about the horizontal range in the middle part of right atrium right side wall to right ventricle, is conducive to allowing whole electrode make full use of the recoil from right atrium wall of crooked steel wire acquisition, is beneficial to accurate location and the release of spiral; Described first curved bottom and the second curved bottom are at a distance of 4.5-5.5 ㎝, this distance approximates the height flowing into road bottom right ventricle to diaphragm between right ventricle, be beneficial to helical tip electrode to fix, prevent it from locating too high arrival pulmonary artery, or too low and be confined to apex region.
The beneficial effects of the utility model: owing to employing the above structure, this utility model has that localization method is simple, strong operability, the advantage such as safe and reliable, this utility model is utilized to carry out spacer portion positioning of electrode success rate up to 100%, and each pacing parameter all reaches requirement, the pace-making QRS ripple time limit comparatively apex pace-making obviously narrow, in art, postoperative be showed no severe complication occur and loose electrode placement.
Accompanying drawing explanation
Fig. 1 be structural representation of the present utility model (one of);
Fig. 2 is structural representation of the present utility model (two).
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
A kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker of this utility model, comprise steel wire body 3, the span spacing L that the far-end of described steel wire body 3 is provided with continuous print first bending 1 and second bending 2, described first bending 1, second bending 2 is 3-4 ㎝; Bottom bending 2 with second bottom described first bending 1, apart H1 is 4.5-5.5 ㎝, and the end-to-end distance second curved bottom H2 of described steel wire body 3 is 0.5-1 ㎝.
Embodiment: steel wire body 3 diameter described in the utility model is 0.15-0.2 ㎜, long 55-60 ㎝, the far-end of described steel wire body 3 arranges continuous print first bending 1 and second bending 2, one-body molded.Using method: conventional puncture left subclavian vein inserts Pacing lead, under the perspective of postero-anterior position, first ventricular lead is delivered to portion in the heart of RVA(right ventricle) pace-making test the every pacing parameter in this position, record pace cardiagram, then adjust ventricular lead and deliver to outflow tract of right ventricle (RVOT), pacemaker is positioned at below pulmonary conus, guide steel wire described in the utility model adjustment electrode tip and RVOTS is adopted to form vertical relation at LAO (LAO) 45 ° and right front tiltedly (RAO) 30 ° of positions, and confirm that electrode is in efferent tract spacer portion in conjunction with pace cardiagram.During RVOTS pace-making, II, III, the QRS wave group that leads of aVF is all upright, but can to lead according to I and aVL leads QRS waveform state positioning free wall or spacer portion in conjunction with QRS I/QRSaVL ratio; After the effective pace-making of ventricle, the spiral of top of electrodes is screwed into cardiac muscle, measures pacing threshold (fixed pulse width 0. 48 ms), impedance, R wave-amplitude, indices requires to require identical with RVA electrode cable; After Parameters satisfactory under lasting X-ray examination escape leading steel wire, observe electrode head end and whether be subjected to displacement, precession electrode spiral coil.
This utility model is in clinical application, the second radian bent is utilized to enable pacing electrode tip enter right ventricle by Tricuspid valve smoothly, and obtain the support of ventricle wall after entering right ventricle, make to bend nature perpendicular to spacer portion with the head end of its plane orthogonal, when screwing out head end metal screws, suitably give counterclockwise rotating force, namely easily reach satisfied location, easy victory is fast.
These are only some embodiments of the present utility model, as long as employ above structure, protection domain of the present utility model all should be fallen into.
Claims (1)
1. the tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker, comprise steel wire body (3), it is characterized in that, the far-end of described steel wire body (3) is provided with continuous print first bending (1) and second bending (2), and the span spacing L of described first bending (1), second bending (2) is 3-4 ㎝; Described first bending (1) bottom and second bending (2) bottom are 4.5-5.5 ㎝ at a distance of H1, and the end-to-end distance second curved bottom H2 of described steel wire body (3) is 0.5-1 ㎝.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697202.1U CN204219611U (en) | 2014-11-19 | 2014-11-19 | A kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697202.1U CN204219611U (en) | 2014-11-19 | 2014-11-19 | A kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker |
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| CN204219611U true CN204219611U (en) | 2015-03-25 |
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| CN201420697202.1U Active CN204219611U (en) | 2014-11-19 | 2014-11-19 | A kind of tangent bend guiding steel wire for interventricular septum electrode of implanting a pacemaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109568792A (en) * | 2018-12-26 | 2019-04-05 | 创领心律管理医疗器械（上海）有限公司 | Delivery sheath and pacemaker system |
| CN111295224A (en) * | 2017-11-02 | 2020-06-16 | 心脏起搏器股份公司 | System for bundle of his pacing |
-
2014
- 2014-11-19 CN CN201420697202.1U patent/CN204219611U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111295224A (en) * | 2017-11-02 | 2020-06-16 | 心脏起搏器股份公司 | System for bundle of his pacing |
| CN109568792A (en) * | 2018-12-26 | 2019-04-05 | 创领心律管理医疗器械（上海）有限公司 | Delivery sheath and pacemaker system |
| CN109568792B (en) * | 2018-12-26 | 2023-04-18 | 创领心律管理医疗器械（上海）有限公司 | Delivery sheath and pacemaker system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |