JPH0315079Y2 - - Google Patents
Info
- Publication number
- JPH0315079Y2 JPH0315079Y2 JP4599687U JP4599687U JPH0315079Y2 JP H0315079 Y2 JPH0315079 Y2 JP H0315079Y2 JP 4599687 U JP4599687 U JP 4599687U JP 4599687 U JP4599687 U JP 4599687U JP H0315079 Y2 JPH0315079 Y2 JP H0315079Y2
- Authority
- JP
- Japan
- Prior art keywords
- indwelling catheter
- main body
- tapered threaded
- needle
- indwelling
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 210000001367 artery Anatomy 0.000 claims 1
- 238000001990 intravenous administration Methods 0.000 claims 1
- 210000004204 blood vessel Anatomy 0.000 description 18
- 210000004369 blood Anatomy 0.000 description 8
- 239000008280 blood Substances 0.000 description 8
- 235000015097 nutrients Nutrition 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
この考案は、血管から血液を採取したり、血管
に血液や薬剤を供給したりするために使用される
動脈静脈用留置カテーテルに関するものである。[Detailed description of the invention] (a) Industrial application field This invention relates to an indwelling arteriovenous catheter used to collect blood from blood vessels and to supply blood and drugs to blood vessels. be.
(ロ) 従来の技術
従来のこの種の留置カテーテルは、第３図に示
すように内部に空部１０１および通気孔１０２を
有するノブ１０３を備えた内針（金属パイプ針）
１０４と、支持部１０５の先端に固定された留置
カテーテル１０６とから構成され、内針１０４は
支持部１０５の後端から留置カテーテル１０６の
内部を貫通して支持部１０５に着脱可能に固定さ
れている。(B) Prior Art A conventional indwelling catheter of this type has an inner needle (metal pipe needle) equipped with a knob 103 having a cavity 101 and a ventilation hole 102 inside, as shown in FIG.
104 and an indwelling catheter 106 fixed to the distal end of the support part 105, and the inner needle 104 passes through the interior of the indwelling catheter 106 from the rear end of the support part 105 and is removably fixed to the support part 105. There is.
そして、血管から血液を採取する場合には、ま
ず血管を確保した後、内針１０４を装着した留置
カテーテル１０６を血管に穿刺する。血管からの
血液が空部１０１に内針１０４を通じて逆流し、
それによつて内針１０４の先端及び留置カテーテ
ル１０６の先端が血管内に確実に留置されたこと
が確認されると、内針１０４を留置カテーテル１
０６から引き抜き、外部回路からのチユーブを支
持部１０５に接続して、そのチユーブを通じて血
液を採取したり薬剤を供給したりするようにして
いる。 When collecting blood from a blood vessel, the blood vessel is first secured, and then the indwelling catheter 106 equipped with the inner needle 104 is punctured into the blood vessel. Blood from the blood vessel flows back into the cavity 101 through the inner needle 104,
When it is confirmed that the tip of the inner needle 104 and the tip of the indwelling catheter 106 are securely placed in the blood vessel, the inner needle 104 is inserted into the indwelling catheter 106.
A tube from an external circuit is connected to the support part 105, and blood is collected or medicine is supplied through the tube.
(ハ) 考案が解決しようとする問題点
しかしながら、このような従来の留置カテーテ
ルを用いて血管に外部回路を接続する場合、血管
に穿刺した内針を引き抜いた後に、留置カテーテ
ルに外部回路からのチユーブを接続せねばなら
ず、従つて、その接続作業は手間を要するばかり
でなく、チユーブの接続間違いや接続不良を生じ
るという問題点があつた。(c) Problems to be solved by the invention However, when connecting an external circuit to a blood vessel using such a conventional indwelling catheter, after the inner needle inserted into the blood vessel is withdrawn, the indwelling catheter is connected to the external circuit. It is necessary to connect the tubes, and therefore, the connection work not only requires time and effort, but also causes problems such as incorrect or poor connection of the tubes.
この考案はこのような事情を考慮してなされた
もので、留置カテーテルに外部回路からのチユー
ブを予め接続することが可能で、留置カテーテル
を血管に挿入した後、内針を抜き取るだけで自動
的にチユーブと留置カテーテルの流路が形成され
る動脈静脈用留置カテーテルを提供するものであ
る。 This idea was devised in consideration of these circumstances; it is possible to connect the tube from the external circuit to the indwelling catheter in advance, and after inserting the indwelling catheter into the blood vessel, the inner needle can be removed automatically. The present invention provides an arteriovenous indwelling catheter in which a tube and a flow path for the indwelling catheter are formed.
(ニ) 問題点を解決するための手段
この考案は、パイプ状で、一端の外周にテーパ
ネジ部が形成されると共に少なくとも１本の割り
溝がそのテーパネジ部にその一端から他端方向に
形成され、側面には液流入用の分岐管が設けら
れ、他端にはパイプ状の留置カテーテルが同芯状
に接続された本体と、
前記テーパネジ部に螺着されるナツト部材と、
前記一端の開口に挿入されて弾着し先端部が前
記分岐管から前記留置カテーテルに至る流路の路
壁の一部を形成しさらに前記ナツト部材によつて
前記テーパネジ部を締付けることにより封止され
る軸穴を有する弾性部材と、
前記軸穴と前記本体と前記留置カテーテルを貫
通して先端が前記留置カテーテル先端から露出す
るように着脱可能に前記本体に装着され後端には
通気孔付のノブを有する金属パイプ針からなる動
脈静脈用留置カテーテルである。(d) Means for solving the problem This invention has a pipe shape, a tapered threaded part is formed on the outer periphery of one end, and at least one split groove is formed in the tapered threaded part from one end to the other end. , a main body having a branch pipe for liquid inflow provided on the side surface and a pipe-shaped indwelling catheter concentrically connected to the other end; a nut member screwed onto the tapered threaded portion; and an opening at the one end. a shaft hole that is inserted into and snaps into place, the distal end of which forms a part of the wall of a flow path from the branch tube to the indwelling catheter, and which is further sealed by tightening the tapered threaded portion with the nut member; an elastic member that penetrates through the shaft hole, the main body, and the indwelling catheter, and is detachably attached to the main body so that the tip is exposed from the tip of the indwelling catheter, and has a knob with a ventilation hole at the rear end. This is an indwelling catheter for arteriovenous use consisting of a metal pipe needle.
なお、留置カテーテルには、テフロン、ポリウ
レタン、ポリプロピレンなどの材料が使用され
る。また、弾性部材には、天然ゴムや合成ゴムな
どが使用される。 Note that materials such as Teflon, polyurethane, and polypropylene are used for the indwelling catheter. Furthermore, natural rubber, synthetic rubber, or the like is used for the elastic member.
(ホ) 作用
本体に金属パイプ針を装着し、分岐管に予め必
要な回路を接続し、次に血管に留置カテーテルを
挿入した後、金属パイプ針を引き抜き、テーパネ
ジ部をナツトで締付けると、テーパネジ部には割
り溝が形成されているので、弾性部材の軸穴はそ
の締付け圧力によつて封止される。ところで、分
岐管から留置カテーテルに至る流路が、金属針を
引き抜くことによつて自動的に形成されるので、
分岐管に接続された回路から必要な液が供給され
ると、その液は留置カテーテルを介して血管に供
給される。(e) Action Attach the metal pipe needle to the main body, connect the necessary circuit to the branch pipe in advance, then insert the indwelling catheter into the blood vessel, pull out the metal pipe needle, and tighten the taper threaded part with a nut. Since the groove is formed in the part, the shaft hole of the elastic member is sealed by the tightening pressure. By the way, since the flow path from the branch tube to the indwelling catheter is automatically formed by pulling out the metal needle,
Once the necessary fluid is supplied from the circuit connected to the branch tube, the fluid is supplied to the blood vessel via the indwelling catheter.
このようにして、この考案によれば、予め必要
な回路が留置カテーテルに接続されているので、
金属パイプ針を引き抜いた後にチユーブを接続す
るという作業がなくなり、操作が簡単かつ安全
で、確実な動脈静脈用留置カテーテルが提供され
る。 In this way, according to this invention, since the necessary circuits are connected to the indwelling catheter in advance,
There is no need to connect a tube after pulling out a metal pipe needle, and an arteriovenous indwelling catheter that is easy to operate, safe, and reliable is provided.
(ヘ) 実施例
以下、図面に示す実施例に基づいてこの考案を
詳述する。なお、これによつてこの考案が限定さ
れるものではない。(f) Examples This invention will be described in detail below based on examples shown in the drawings. Note that this invention is not limited to this.
第１図はこの考案の１実施例を示す縦断面図、
第２図は第１図のＡ−Ａ矢視断面を示す横断面図
である。これらの図面において、１はパイプ状の
本体、２は本体１弐の一端の外周に形成されたテ
ーパネジ部、３は本体の一端から他端方向に形成
された割り溝、４は本体の側面に設けられた液流
入用の分岐管、５は本体１の他端に同芯に接続さ
れた留置カテーテル、６はペーパーネジ部２に螺
着されるナツト、７は本体の一端の開口に挿入さ
れて弾着し、先端部が分岐管から留置カテーテル
５に至る流路の路壁の一部を形成し、ナツト６に
よつてペーパーネジ部２が締付けられることによ
り封止される軸穴８を有する弾性部材、９は軸穴
８と本体１の内部と留置カテーテル５を貫通して
先端が留置カテーテル５の先端から露出するよう
に着脱可能に本体１に装着され後端に通気孔１０
と血液の逆流を確認する確認室１１を備えたノブ
１２を有する金属パイプ針、１３は第２図に示す
ように本体１の外周に沿つて摺動可能に固定され
本体１の外周のリング状の突起１４ａ及び１４ｂ
によつて位置決めされ縫合穴１５ａ，１５ｂを有
するウイングである。 FIG. 1 is a longitudinal sectional view showing one embodiment of this invention.
FIG. 2 is a cross-sectional view taken along the line A--A in FIG. 1. In these drawings, 1 is a pipe-shaped main body, 2 is a tapered threaded portion formed on the outer periphery of one end of the main body 1, 3 is a split groove formed from one end of the main body toward the other end, and 4 is a groove on the side of the main body. A branch pipe for liquid inflow is provided, 5 is an indwelling catheter concentrically connected to the other end of the main body 1, 6 is a nut screwed onto the paper screw part 2, and 7 is inserted into an opening at one end of the main body. The distal end forms a part of the wall of the flow path from the branch tube to the indwelling catheter 5, and the shaft hole 8 is sealed by tightening the paper screw part 2 with the nut 6. An elastic member 9 is detachably attached to the main body 1 so as to pass through the shaft hole 8, the inside of the main body 1, and the indwelling catheter 5 so that its tip is exposed from the distal end of the indwelling catheter 5, and has a ventilation hole 10 at the rear end.
and a metal pipe needle having a knob 12 with a confirmation chamber 11 for confirming the backflow of blood; 13 is slidably fixed along the outer periphery of the main body 1 as shown in FIG. protrusions 14a and 14b of
The wing is positioned by the wing and has suture holes 15a and 15b.
なお、この実施例においては、金属パイプ針９
（一般には内針と呼ばれる）はゲージ１０Ｇから
２４Ｇまでのものを使用するのが好ましく、留置
カテーテル５の本体１の端部から先端までの距離
は25〜38mm程度が好ましい。ただし、特殊な用途
についてはこの限りではない。 In addition, in this embodiment, the metal pipe needle 9
It is preferable to use a needle (generally called an inner needle) with a gauge of 10G to 24G, and the distance from the end of the main body 1 of the indwelling catheter 5 to the tip is preferably about 25 to 38 mm. However, this does not apply to special uses.
また、金属パイプ針９の後端に設けられたノブ
１２は確認室１１に逆流する血液を確認するため
に、透明な材料で形成されることが好ましい。更
に、通気孔１０は、空気を通すが血液を通さない
ような多孔質のフイルタで形成してもよい。分岐
管４に接続されているチユーブ１６は適度な可撓
性を有し、その後端部（図示しない）には他の回
路と容易に接続可能な、一般にルアーロツクと呼
ばれる接続具１７が設けられる。また、留置カテ
ーテル５と本体１との接続は、両者の材料によつ
ても異なるが、接着剤を用いて接着したり、圧着
用金具を内面から押圧して固定する場合もある。
分岐管４とチユーブ１６の接続は熱収縮バンドに
よつて固定してもよい。さらに、チユーブ１６に
は、その流路を必要に応じて開閉できるクランプ
１８が設けられる。 Further, the knob 12 provided at the rear end of the metal pipe needle 9 is preferably made of a transparent material in order to confirm blood flowing back into the confirmation chamber 11. Furthermore, the vent hole 10 may be formed of a porous filter that allows air to pass through but not blood. The tube 16 connected to the branch pipe 4 has appropriate flexibility and is provided with a connector 17, generally called a Luer lock, at its rear end (not shown) that can be easily connected to other circuits. Although the connection between the indwelling catheter 5 and the main body 1 differs depending on the materials of the two, there are cases where they are bonded using an adhesive or fixed by pressing a crimp fitting from the inside.
The connection between the branch pipe 4 and the tube 16 may be fixed with a heat shrink band. Further, the tube 16 is provided with a clamp 18 that can open and close the flow path as necessary.
このような構成において、血管に例えば液状の
栄養剤を供給する場合には、その栄養剤供給回路
にチユーブ１６が接続される。本体１に装着され
た金属パイプ針９が、確保された血管に穿刺され
ると、その血管から血液が逆流して金属パイプ針
９を通り確認室１１に到達する。それによつて、
留置カテーテル５が金属パイプ針９と共に血管に
穿刺されたことが確認されると、金属パイプ針９
は後方に引き抜かれ、ナツト６が締付けられて弾
性部材７の軸穴８が封止される。それと共に、所
定の栄養剤供給回路からチユーブ１６、分岐管４
そして留置カテーテル５を介して血管に液状の栄
養剤が供給される。また、ウイング１３は接着テ
ープを用いて皮膚に固定されたり、場合によつて
は縫合穴１５ａ，１５ｂを用いて皮膚に直接縫合
される。また、必要に応じて、ナツト６をゆるめ
て軸穴８に金属パイプ針を再度挿入し、その金属
パイプ針を通じて他の種類の輸液を同時に行うこ
とも可能である。 In such a configuration, when supplying, for example, a liquid nutrient to the blood vessel, the tube 16 is connected to the nutrient supply circuit. When the metal pipe needle 9 attached to the main body 1 punctures the secured blood vessel, blood flows backward from the blood vessel, passes through the metal pipe needle 9, and reaches the confirmation chamber 11. By that,
When it is confirmed that the indwelling catheter 5 and the metal pipe needle 9 have been punctured into the blood vessel, the metal pipe needle 9
is pulled out backwards, and the nut 6 is tightened to seal the shaft hole 8 of the elastic member 7. At the same time, a tube 16 and a branch pipe 4 are connected to a predetermined nutrient supply circuit.
A liquid nutrient is then supplied to the blood vessel via the indwelling catheter 5. Further, the wings 13 may be fixed to the skin using adhesive tape, or may be sutured directly to the skin using suture holes 15a and 15b as the case may be. Furthermore, if necessary, it is also possible to loosen the nut 6, reinsert the metal pipe needle into the shaft hole 8, and administer other types of infusions through the metal pipe needle at the same time.
(ト) 考案の効果
この考案によれば、血管に血液採取や薬剤供給
などの外部回路を接続する作業が極めて簡単で、
しかも確実なものとなる。しかも、一回路からの
輸液を実施しながら、もう一回路からの輸液を追
加することが可能であり、その追加回路の接続
は、繰り返し行うことができる。(g) Effects of the invention According to this invention, it is extremely easy to connect external circuits such as blood sampling and drug supply to blood vessels.
And it will be certain. Moreover, while performing infusion from one circuit, it is possible to add infusion from another circuit, and the connection of the additional circuit can be repeated.
第１図はこの考案の一実施例を示す縦断面図、
第２図は第１図のＡ−Ａ矢視断面図、第３図は従
来例を示す縦断面図である。
１……本体、２……テーパーネジ部、３……割
れ溝、４……分岐管、５……留置カテーテル、６
……ナツト、７……弾性部材、８……軸穴、９…
…金属パイプ針、１０……通気孔、１２……ノ
ブ。
FIG. 1 is a longitudinal sectional view showing an embodiment of this invention.
2 is a sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a longitudinal sectional view showing a conventional example. DESCRIPTION OF SYMBOLS 1...Main body, 2...Tapered thread part, 3...Crack groove, 4...Branch tube, 5...Indwelling catheter, 6
... Nut, 7 ... Elastic member, 8 ... Shaft hole, 9 ...
...metal pipe needle, 10...vent hole, 12...knob.
Claims (1)
されると共に少なくとも１本の割り溝がそのテー
パネジ部にその一端から他端方向に形成され、側
面には液流入用の分岐管が設けられ、他端にはパ
イプ状の留置カテーテルが同芯状に接続された本
体と、 前記テーパネジ部に螺着されるナツト部材と、 前記一端の開口に挿入されて弾着し先端部が前
記分岐管から前記留置カテーテルに至る流路の路
壁の一部を形成しさらに前記ナツト部材によつて
前記テーパネジ部を締付けることにより封止され
る軸穴を有する弾性部材と、 前記軸穴と前記本体と前記留置カテーテルを貫
通して先端が前記留置カテーテル先端から露出す
るように着脱可能に前記本体に装着され後端には
通気孔付のノブを有する金属パイプ針、 からなる動脈静脈用留置カテーテル。[Claims for Utility Model Registration] It is pipe-shaped, and has a tapered threaded portion formed on the outer periphery of one end, and at least one split groove is formed in the tapered threaded portion from one end to the other end, and a side wall for liquid inflow. a main body to which a pipe-shaped indwelling catheter is concentrically connected to the other end; a nut member screwed into the tapered threaded portion; an elastic member whose distal end forms a part of a wall of a flow path from the branch pipe to the indwelling catheter, and further has an axial hole that is sealed by tightening the tapered threaded part with the nut member; an artery comprising: a shaft hole, a metal pipe needle that penetrates the main body and the indwelling catheter, is detachably attached to the main body so that the tip is exposed from the tip of the indwelling catheter, and has a knob with a ventilation hole at the rear end; Indwelling intravenous catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4599687U JPH0315079Y2 (en) | 1987-03-27 | 1987-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4599687U JPH0315079Y2 (en) | 1987-03-27 | 1987-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63151152U JPS63151152U (en) | 1988-10-04 |
| JPH0315079Y2 true JPH0315079Y2 (en) | 1991-04-03 |
Family
ID=30865251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4599687U Expired JPH0315079Y2 (en) | 1987-03-27 | 1987-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0315079Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009534090A (en) * | 2006-04-19 | 2009-09-24 | ノルディック メッド ―コム アクティーボラグ | Catheter tube, catheter and catheter assembly |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0636831Y2 (en) * | 1990-06-30 | 1994-09-28 | 政徳 鶴岡 | Liquid filling device for enema fluoroscopy |
| JP5019242B1 (en) * | 2011-08-01 | 2012-09-05 | 小林 正英 | Medical infusion intravenous injection device |
| US9233230B2 (en) | 2011-09-09 | 2016-01-12 | Nordic Med-Com Ab | Catheter introducer assembly |
| US11406810B2 (en) * | 2018-09-10 | 2022-08-09 | Beeton, Dickinson and Company | Systems and methods of facilitating instrument delivery to a catheter assembly |
-
1987
- 1987-03-27 JP JP4599687U patent/JPH0315079Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009534090A (en) * | 2006-04-19 | 2009-09-24 | ノルディック メッド ―コム アクティーボラグ | Catheter tube, catheter and catheter assembly |
| JP2013165984A (en) * | 2006-04-19 | 2013-08-29 | Nordic Med -Com Ab | Catheter assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63151152U (en) | 1988-10-04 |
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