JPH0488665U - - Google Patents
Info
- Publication number
- JPH0488665U JPH0488665U JP40048490U JP40048490U JPH0488665U JP H0488665 U JPH0488665 U JP H0488665U JP 40048490 U JP40048490 U JP 40048490U JP 40048490 U JP40048490 U JP 40048490U JP H0488665 U JPH0488665 U JP H0488665U
- Authority
- JP
- Japan
- Prior art keywords
- catheter
- conductive wire
- original shape
- sensor component
- catheter body
- 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
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 2
- 230000036760 body temperature Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000747 cardiac effect Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 210000005245 right atrium Anatomy 0.000 description 1
- 210000005241 right ventricle Anatomy 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Description
図面はいずれも本考案の実施例を示すものであ
つて、第1図は心臓ペースメーカー用カテーテル
の拡大断面図、第2図は形状記憶合金の応力−歪
線図、第3A図及び第3B図は血管にカテーテル
が挿通される状態を示す概略図、第4図は心臓に
カテーテル先端を送り込んだ状態を示す概略図、
第5図は心電図のスケツチ、第6図は心臓ペース
メーカーの内部構造を示す概略ブロツク図、第7
図はR波検出の概略ブロツク図、第8図は心圧測
定用カテーテルの拡大部分断面図、第9図は第8
図のカテーテルを使用して医療行為を行う要領を
示す要部概略図、第10図は血液中の酸素分圧測
定用の白金酸素電極の拡大部分断面図、第11図
は印加電圧と電流値との関係を血液中の酸素分圧
別に示すグラフ、である。
なお、図面に示された符号において、1,21
……カテーテル、2,22……カテーテル本体、
3……電極、4……導線、5……心臓ペースメー
カー、6……大静脈、8……右心房、9……右心
室、23……小型トランスデユーサ、24……同
軸ケーブル、34……記録計、40……輸液、5
3……白金酸素電極、である。
The drawings all show embodiments of the present invention; Fig. 1 is an enlarged sectional view of a cardiac pacemaker catheter, Fig. 2 is a stress-strain diagram of a shape memory alloy, and Figs. 3A and 3B. 4 is a schematic diagram showing a state in which a catheter is inserted into a blood vessel, and FIG. 4 is a schematic diagram showing a state in which the tip of the catheter is sent into the heart.
Figure 5 is a sketch of an electrocardiogram, Figure 6 is a schematic block diagram showing the internal structure of a cardiac pacemaker, and Figure 7 is a sketch of an electrocardiogram.
The figure is a schematic block diagram of R-wave detection, Figure 8 is an enlarged partial sectional view of the catheter for measuring cardiac pressure, and Figure 9 is the
Figure 10 is an enlarged partial sectional view of a platinum oxygen electrode for measuring oxygen partial pressure in blood; Figure 11 is applied voltage and current values. 2 is a graph showing the relationship between blood oxygen partial pressure and In addition, in the symbols shown in the drawings, 1, 21
... Catheter, 2, 22 ... Catheter body,
3... Electrode, 4... Leading wire, 5... Cardiac pacemaker, 6... Vena cava, 8... Right atrium, 9... Right ventricle, 23... Small transducer, 24... Coaxial cable, 34... ... Recorder, 40 ... Infusion, 5
3...Platinum oxygen electrode.
Claims (1)
このセンサ構成素子に接続する導線が前記カテー
テル本体の長さ方向に配され、前記導線が、生体
の体温以下の温度で原形復帰しかつこの原形復帰
状態で超弾性を示す形状記憶合金からなつている
センサ構成素子付きカテーテル。 a sensor component is provided in the catheter body;
A conductive wire connected to the sensor component is disposed along the length of the catheter body, and the conductive wire is made of a shape memory alloy that returns to its original shape at a temperature below the body temperature and exhibits superelasticity in this state of returning to its original shape. catheter with sensor components.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP40048490U JPH0488665U (en) | 1990-12-13 | 1990-12-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP40048490U JPH0488665U (en) | 1990-12-13 | 1990-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0488665U true JPH0488665U (en) | 1992-07-31 |
Family
ID=31878726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP40048490U Pending JPH0488665U (en) | 1990-12-13 | 1990-12-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0488665U (en) |
-
1990
- 1990-12-13 JP JP40048490U patent/JPH0488665U/ja active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0284603U (en) | ||
US4649924A (en) | Method for the detection of intracardiac electrical potential fields | |
US4387717A (en) | Pacer internal cardiac electrogram sensing system | |
JP3959025B2 (en) | Method and apparatus for determining mean pulmonary artery pressure | |
CA2086713A1 (en) | Implantable cardiac patient monitor | |
US5799350A (en) | Blood flow velocity measurement device | |
EP1980292A2 (en) | Pulmonary pressure monitoring | |
JP2004512126A (en) | A subcutaneous spiral electrode for sensing cardiac electrical signals | |
JP2703287B2 (en) | P-synchronous cardiac pacer | |
JPH03118762U (en) | ||
Bongiorni et al. | Is local myocardial contractility related to endocardial acceleration signals detected by a transvenous pacing lead? | |
US20110208077A1 (en) | System and method for exploiting atrial eelctrocardiac parameters in assessing left atrial pressure using an implantable medical device | |
JPH0488665U (en) | ||
JPH0288665U (en) | ||
EP0274499B1 (en) | Oesophageal probe provided with measuring or stimulating electrodes | |
JPH0288666U (en) | ||
JPH0488666U (en) | ||
Gavrilescu et al. | The monophasic action potential of the right atrium | |
JPS62113555U (en) | ||
Hegbom et al. | RV function in stable and unstable VT: is there a need for hemodynamic monitoring in future defibrillators? | |
JPS6185202U (en) | ||
JP2554105Y2 (en) | Cardiac electrocatheter | |
Stopczyk et al. | Pre‐P (sino‐atrial node region) activity recording from the right atrial cavity by signal averaging | |
JPH0422904U (en) | ||
JPH062655Y2 (en) | Electrode for EEG measurement |