JPH0288665U - - Google Patents
Info
- Publication number
- JPH0288665U JPH0288665U JP17003388U JP17003388U JPH0288665U JP H0288665 U JPH0288665 U JP H0288665U JP 17003388 U JP17003388 U JP 17003388U JP 17003388 U JP17003388 U JP 17003388U JP H0288665 U JPH0288665 U JP H0288665U
- 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 6
- 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
- 238000001514 detection method Methods 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
- 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
- Electrotherapy Devices (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 catheter tip 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 cross-sectional view of the catheter for measuring cardiac pressure, and Figure 9 is a schematic block diagram of R-wave detection.
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 arranged 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 |
|---|---|---|---|
| JP17003388U JPH0288665U (en) | 1988-12-28 | 1988-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17003388U JPH0288665U (en) | 1988-12-28 | 1988-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0288665U true JPH0288665U (en) | 1990-07-13 |
Family
ID=31460615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17003388U Pending JPH0288665U (en) | 1988-12-28 | 1988-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0288665U (en) |
-
1988
- 1988-12-28 JP JP17003388U patent/JPH0288665U/ja active Pending
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