JPH0619742U - Thick drip needle in a thin blood vessel - Google Patents
Thick drip needle in a thin blood vesselInfo
- Publication number
- JPH0619742U JPH0619742U JP4456991U JP4456991U JPH0619742U JP H0619742 U JPH0619742 U JP H0619742U JP 4456991 U JP4456991 U JP 4456991U JP 4456991 U JP4456991 U JP 4456991U JP H0619742 U JPH0619742 U JP H0619742U
- Authority
- JP
- Japan
- Prior art keywords
- drip needle
- blood vessel
- needle
- thin blood
- drip
- 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
- 210000004204 blood vessel Anatomy 0.000 title description 5
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 4
- 239000002872 contrast media Substances 0.000 description 3
- 229940039231 contrast media Drugs 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002601 radiography Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
(57)【要約】
【目的】 より断面の広い点滴針を容易に患者に注入す
る。
【構成】 断面が楕円形である形状記憶合金製の点滴針
である。
(57) [Summary] [Purpose] A drip needle with a wider cross section can be easily injected into a patient. [Structure] A drip needle made of a shape memory alloy having an elliptical cross section.
Description
【考案の詳細な説明】 本考案は老人や点滴常習者で血管の細くなってしまった患者に対してより 水平断面積の大きい点滴針が注入しやすくなるようにするためのものです。[Detailed Description of the Invention] The present invention is intended to make it easier to inject a drip needle with a larger horizontal cross-sectional area to elderly people or patients who have drip habits and whose blood vessels have become thin.
従来の点滴針はその水平断面は円形で、素材も形状記憶合金ではなかった 。だから、患者の血管の太さにあわせた直径の点滴針を使用するしかありません でした。ようするに血管の細い患者に対しては水平断面積の小さい点滴針しか使 用できなかった。しかし、これではレントゲン撮影用造影剤等のように粘度の高 い液体をその指定時間以内に患者の体内に注入することは困難な場合があります 。レントゲン撮影用造影剤のなかには指定時間以内に患者の体内に注入しないと 正確なレントゲン撮影ができないものも多くあります。この問題を解決するため には少しでも水平断面積の大きい点滴針を使用する事です。 The conventional drip needle had a circular horizontal cross section, and the material was not a shape memory alloy. Therefore, we had no choice but to use an infusion needle with a diameter that matched the thickness of the patient's blood vessel. Thus, for patients with thin blood vessels, only drip needles with a small horizontal cross section could be used. However, this may make it difficult to inject a highly viscous liquid such as a radiographic contrast medium into the patient's body within the specified time. Many of the radiographic contrast media must be injected into the patient's body within the specified time for accurate radiography. The solution to this problem is to use a drip needle with a large horizontal cross section.
一般に外周の長さが同じ円と楕円ではその面積は円の方が大きくなります 。 Generally, the area of a circle is larger for a circle and an ellipse with the same outer circumference.
本考案はある一定温度で点滴針の水平断面の形状が楕円形から円形に変化 する形状記憶合金で造り、針先は常温時水平断面の楕円形の長軸の先端が針の尖 先になるようにカットした点滴針です。 The present invention is made of shape memory alloy that changes the shape of the horizontal section of the drip needle from elliptical to circular at a certain temperature. The tip of the long axis of the elliptical horizontal section of the drip needle becomes the tip of the needle at room temperature. It is a drip needle cut like this.
本考案では点滴針注入前と後で針の水平断面積が変化するため、老人、点 滴常習者等血管の細くなった患者にたいして従来より水平断面の広い点滴針を容 易に患者に注入できます。これによってレントゲン撮影用造影剤等粘度の高い液 体でもスムーズに点滴する事を可能にします。 In the present invention, since the horizontal cross-sectional area of the needle changes before and after the injection of the drip needle, it is possible to easily inject a drip needle with a wider horizontal cross-section into the patient, such as elderly patients and addicts with narrow blood vessels. I will. This makes it possible to smoothly drip even highly viscous liquids such as contrast media for radiography.
第１図は水平断面図 第２図は正面図 第３図は側面図 第１図〜第３図は常温時の形状変化していない状態 第４図は水平断面図 第５図は正面図 第６図は側面図 第４図〜第６図はある一定温度において形状変化した状
態1 is a horizontal sectional view FIG. 2 is a front view FIG. 3 is a side view FIG. 1 to FIG. Fig. 6 is a side view Fig. 4 to Fig. 6 show a state in which the shape has changed at a certain temperature.
Claims (1)
点滴針である。The present invention is a medical drip needle characterized by being made of a shape memory alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4456991U JPH0619742U (en) | 1991-03-29 | 1991-03-29 | Thick drip needle in a thin blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4456991U JPH0619742U (en) | 1991-03-29 | 1991-03-29 | Thick drip needle in a thin blood vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0619742U true JPH0619742U (en) | 1994-03-15 |
Family
ID=12695137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4456991U Pending JPH0619742U (en) | 1991-03-29 | 1991-03-29 | Thick drip needle in a thin blood vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619742U (en) |
-
1991
- 1991-03-29 JP JP4456991U patent/JPH0619742U/en active Pending
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