JPH0370146U

JPH0370146U -

Info

Publication number: JPH0370146U
Application number: JP13091989U
Authority: JP
Priority date: 1989-11-09
Filing date: 1989-11-09
Publication date: 1991-07-12

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案のデイスポシリンジの実施例
１の係止部材と突出部による逆止手段の構成状態
説明組立正面図、第２図は第１図のＡＡ視断面図
、第３図は第１図のＢＢ視断面図、第４図はデイ
スポシリンジの実施例２の逆止手段の構成状態説
明部分組立断面図、第５図は第４図のＣＣ視断面
図、第６図はデイスポシリンジの実施例３の逆止
手段の構成状態説明部分組立正面図、第７図は第
６図のＤＤ視部分組立説明図、第８図は第７図の
ＥＥ視断面図、第９図はこのデイスポシリンジの
実施例４の逆止手段の部分組立説明図、第１０図
は第９図のＦＦ視断面図、第１１図は第９図のＧ
Ｇ視部分組立説明図、第１２は第１１図のＨＨ視
側面図、第１３図はデイスポシリンジの実施例５
の係止部材による前後シヤンクを連結してなる構
成説明用シリンダー部切断全体要部組立正面図、
第１４図は第１３図のＪＪ視部分断面図、第１５
図は第１４図の状態から離脱作用説明断面図であ
る。主要部分の符号の説明、１……デイスポシリン
ジ、５……切込み片、６……遊端部、７……係止
部材、７ａ……係止部材（実施例２）、７ｂ……
係止部材（実施例３）、７ｃ……係止部材（実施
例４）、７ｄ……係止部材（実施例５）、９……
突出部、２２……金属針（実施例３）、２２ａ…
…金属針（実施例４）、２６……針頭、２７……
プツシユピン、３２……前部シヤンク、３３……
後部シヤンク、３５……係止長孔、３６……係止
頭部、３８……係止ピン、４２……後端孔縁部、
Ｐ……ピストン、ＰＳ……シヤンク、ＰＨ……ピ
ストンハンドル、Ｃ……シリンダー、ＣＢ……シ
リンダー内底。 FIG. 1 is an assembled front view illustrating the configuration of a non-return means using a locking member and a protrusion in Example 1 of the disposable syringe of this invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. FIG. 1 is a BB sectional view, FIG. 4 is a partially assembled sectional view explaining the configuration of the check means of Example 2 of the disposable syringe, FIG. 5 is a CC sectional view of FIG. 4, and FIG. FIG. 7 is a partially assembled front view illustrating the configuration of the non-return means of Example 3 of the disposable syringe, FIG. 7 is a DD view partially assembled explanatory view of FIG. 6, FIG. The figure is a partially assembled explanatory diagram of the non-return means of Example 4 of this disposable syringe, FIG. 10 is a cross-sectional view from FF in FIG. 9, and FIG. 11 is a G
G-view partial assembly explanatory diagram, No. 12 is a HH-view side view of FIG. 11, and FIG. 13 is Example 5 of the disposable syringe.
An assembled front view of the main parts of the cylinder section, cut away to explain the structure, in which the front and rear shank are connected by the locking member,
Figure 14 is a partial sectional view from JJ in Figure 13;
This figure is a sectional view illustrating the action of separating from the state shown in FIG. 14. Explanation of symbols of main parts, 1... Dispo syringe, 5... Notch piece, 6... Free end, 7... Locking member, 7a... Locking member (Example 2), 7b...
Locking member (Example 3), 7c...Locking member (Example 4), 7d...Locking member (Example 5), 9...
Projection portion, 22... Metal needle (Example 3), 22a...
...Metal needle (Example 4), 26... Needle head, 27...
Pushpin, 32...Front shank, 33...
Rear shank, 35... Latching slot, 36... Locking head, 38... Locking pin, 42... Rear end hole edge,
P... Piston, PS... Shank, PH... Piston handle, C... Cylinder, CB... Inner bottom of the cylinder.

補正平２．４．１１Correction: Heisei 2.4.11

【実用新案登録請求の範囲】１使い捨て注射器のピストンＰまたはシリンダ
ーＣの適位置に設けた係止部材７を介してシリン
ダー内底ＣＢまで一旦押し込み状態にしたピスト
ンＰをシリンダーＣ内において拘束する引抜き逆
止手段を設けたことを特徴とする使い捨て注射器
。２ピストンＰのシヤンクＰＳに形成した切込み
片５の遊端部６を係止部材７とし、シリンダーＣ
内に設けた内壁ＣＷの突出部９において拘束する
逆止手段を設けた請求項(1)記載の使い捨て注射
器。３シリンダー内底ＣＢに近接し突出する係止部
材７ａを形成し、シリンダー内底ＣＢまで押し込
まれたピストンヘツドＰＤを係止し、引抜きを拘
束する逆止手段を設けた請求項(1)記載の使い捨
て注射器。４ピストンＰのシヤンクＰＳに取付けられ、そ
の両側に八字形にピストンＰの引抜き方向に開放
する金属針２２からなる係止部材７ｂを設け、シ
リンダー内壁ＣＷに弾装されてくさび状に拘束す
る逆止手段を設けた請求項(1)記載の使い捨て注
射器。５ピストンＰのシヤンクＰＳに取付けられた金
属針２２にＴ字形に取付けたプツシユピン２７の
ピストンハンドルＰＨから突出する針頭２６を押
し込み、シリンダー内壁ＣＷに弾装したとき、引
抜き方向に八字形を形成させる係止部材７Ｃを設
けた請求項(4)記載の使い捨て注射器。６ピストンシヤンクＰＳを前後に切断してなる
前部シヤンク３２に設けた係合長孔３５の後端孔
縁部４２に後部シヤンク３３に突設した係止ピン
３８の係止頭部３６を弾装したうえ係止し、前部
シヤンク３２と所定の間隔ｂを設けて連結した後
部シヤンク３３を押込み前部シヤンク３２に当接
させたとき係止頭部３６の係止を離脱自在に形成
してなる係止部材７ｄを設けた請求項(1)記載の
使い捨て注射器。図面の簡単な説明を次のように補正する。明細書の第２４頁第６行目「ＣＢ……シリンダ
ー内底」の次に第７行目として次の記載を追加補
正する。「ＰＤ……ピストンヘツド」。[Claims for Utility Model Registration] 1. Pulling out the piston P of a disposable syringe or restraining the piston P in the cylinder C, which is once pushed in to the inner bottom CB of the cylinder via a locking member 7 provided at an appropriate position of the cylinder C. A disposable syringe characterized by being provided with a non-return means. 2. The free end 6 of the cut piece 5 formed on the shank PS of the piston P is used as the locking member 7, and the cylinder C
The disposable syringe according to claim 1, further comprising a check means for restraining the protrusion 9 of the inner wall CW provided therein. 3. According to claim (1), a locking member 7a protruding from the cylinder inner bottom CB is formed to lock the piston head PD pushed into the cylinder inner bottom CB, and is provided with a check means for restraining the piston head PD from being pulled out. disposable syringe. 4 A locking member 7b consisting of a metal needle 22 attached to the shank PS of the piston P and opening in the drawing direction of the piston P in a figure eight shape is provided on both sides of the locking member 7b, and a locking member 7b is mounted on the cylinder inner wall CW and restrained in a wedge shape. The disposable syringe according to claim (1), further comprising a stop means. 5 The needle head 26 protruding from the piston handle PH of the push pin 27 attached in a T-shape is pushed into the metal needle 22 attached to the shank PS of the piston P, and when it is elastically loaded into the cylinder inner wall CW, it forms a figure eight shape in the withdrawal direction. The disposable syringe according to claim (4), further comprising a locking member 7C. 6. Attach the locking head 36 of the locking pin 38 protruding from the rear shank 33 to the rear end hole edge 42 of the long engagement hole 35 provided in the front shank 32 formed by cutting the piston shank PS back and forth. When the rear shank 33, which is loaded and locked and connected to the front shank 32 with a predetermined distance b, is pushed in and brought into contact with the front shank 32, the locking head 36 is formed to be able to be released from the lock. The disposable syringe according to claim (1), further comprising a locking member 7d formed of: The brief description of the drawing has been amended as follows. The following statement will be added and amended as the 7th line after "CB... Cylinder inner bottom" on the 6th line of page 24 of the specification. "PD... Piston Head."

Claims

【実用新案登録請求の範囲】１使い捨て注射器のピストンＰまたはシリンダ
ーＣの適位置に設けた係止部材７を介してシリン
ダー内底ＣＢまで一旦押し込み状態にしたピスト
ンＰをシリンダーＣ内において抱束する引抜き逆
止手段を設けたことを特徴とする使い捨て注射器
。２ピストンＰのシヤンクＰＳに形成した切込み
片５の遊端部６を係止部材７とし、シリンダーＣ
内に設けた内壁ＣＷの突出部９において抱束する
逆止手段を設けた請求項(1)記載の使い捨て注射
器。３シリンダー内底ＣＢに近接し突出する係止部
材７ａを形成し、シリンダー内底ＣＢまで押し込
まれたピストンヘツドＰＨを係止し、引抜きを抱
束する逆止手段を設けた請求項(1)記載の使い捨
て注射器。４ピストンＰのシヤンクＰＳに取付けられ、そ
の両側に八字形にピストンＰの引抜き方向に開放
する金属針２２からなる係止部材７ｂを設け、シ
リンダー内壁ＣＷに弾装されてくさび状に抱束す
る逆止手段を設けた請求項(1)記載の使い捨て注
射器。５ピストンＰのシヤンクＰＳに取付けられた金
属針２２にＴ字形に取付けたプツシユピン２７の
ピストンハンドルＰＨから突出する針頭２６を押
し込み、シリンダー内壁ＣＷに弾装したとき、引
抜き方向に八字形を形成させる係止部材７Ｃを設
けた請求項(4)記載の使い捨て注射器。６ピストンシヤンクＰＳを前後に切断してなる
前部シヤンク３２に設けた係合長孔３５の後端孔
縁部４２に後部シヤンク３３に突設した係止ピン
３８の係止頭部３６を弾装したうえ係止し、前部
シヤンク３２と所定の間隔ｂを設けて連結した後
部シヤンク３３を押込み前部シヤンク３２に当接
させたとき係止頭部３６の係止を離脱自在に形成
してなる係止部材７ｄを設けた請求項(1)記載の
使い捨て注射器。[Claims for Utility Model Registration] 1. The piston P of a disposable syringe or the piston P, which has been pushed to the inner bottom CB of the cylinder via the locking member 7 provided at an appropriate position in the cylinder C, is held in the cylinder C. A disposable syringe characterized by being provided with a pull-out check means. 2. The free end 6 of the cut piece 5 formed on the shank PS of the piston P is used as the locking member 7, and the cylinder C
2. The disposable syringe according to claim 1, further comprising a non-return means for holding the syringe at the protrusion 9 of the inner wall CW provided therein. 3. Claim (1) comprising a locking member 7a protruding close to the cylinder inner bottom CB, which locks the piston head PH pushed to the cylinder inner bottom CB and prevents it from being pulled out. Disposable syringe as described. 4. A locking member 7b consisting of a metal needle 22 is attached to the shank PS of the piston P and opens in the drawing direction of the piston P in an 8-shape on both sides thereof, and is elastically loaded on the cylinder inner wall CW to be held in a wedge shape. The disposable syringe according to claim (1), further comprising a non-return means. 5 The needle head 26 protruding from the piston handle PH of the push pin 27 attached in a T-shape is pushed into the metal needle 22 attached to the shank PS of the piston P, and when it is elastically loaded into the cylinder inner wall CW, it forms a figure eight shape in the withdrawal direction. The disposable syringe according to claim (4), further comprising a locking member 7C. 6. Attach the locking head 36 of the locking pin 38 protruding from the rear shank 33 to the rear end hole edge 42 of the long engagement hole 35 provided in the front shank 32 formed by cutting the piston shank PS back and forth. When the rear shank 33, which is loaded and locked and connected to the front shank 32 with a predetermined distance b, is pushed into contact with the front shank 32, the lock of the locking head 36 is made detachable. The disposable syringe according to claim (1), further comprising a locking member 7d formed by: