JPH03146070A - Syringe equipped with pricking pain releasing mechanism for needle cannula - Google Patents
Syringe equipped with pricking pain releasing mechanism for needle cannulaInfo
- Publication number
- JPH03146070A JPH03146070A JP1285456A JP28545689A JPH03146070A JP H03146070 A JPH03146070 A JP H03146070A JP 1285456 A JP1285456 A JP 1285456A JP 28545689 A JP28545689 A JP 28545689A JP H03146070 A JPH03146070 A JP H03146070A
- Authority
- JP
- Japan
- Prior art keywords
- needle
- pricking
- needle cannula
- syringe
- puncture pain
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 51
- 239000007924 injection Substances 0.000 claims abstract description 51
- 230000004936 stimulating effect Effects 0.000 abstract description 6
- 210000000056 organ Anatomy 0.000 abstract 3
- 239000007788 liquid Substances 0.000 description 7
- 239000003814 drug Substances 0.000 description 5
- 229940079593 drug Drugs 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 235000003332 Ilex aquifolium Nutrition 0.000 description 1
- 235000002296 Ilex sandwicensis Nutrition 0.000 description 1
- 235000002294 Ilex volkensiana Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/42—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
- A61M5/422—Desensitising skin
Landscapes
- Health & Medical Sciences (AREA)
- Dermatology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は注射針の穿刺痛緩和機構を有する注射器に係
り、特に注射針を生体組織に穿刺する際の穿刺痛を緩和
し得る注射針の穿刺痛緩和機構を有する注射器に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a syringe having a mechanism for relieving puncture pain of an injection needle, and particularly to an injection device capable of relieving puncture pain when puncturing a living tissue with a hypodermic needle. The present invention relates to a syringe having a needle puncture pain relief mechanism.
液状の薬剤を生体組織に注入する際に使用される注射器
は、第９図に示す如く構成されている。A syringe used to inject a liquid drug into living tissue is constructed as shown in FIG.
図において、１０２は注射器、１０４は注射筒、１０６
は注射針である。注射筒１０４は、筒内壁面１０８に密
着して摺動可能なピストン１１０を有するとともに、一
端側の部外壁面１１２外周に操作突縁１１４を設けてい
る。前記ピストン１１Ｏには、操作杆１１６を介して操
作体１１８が設けられている。前記注射針１０６は、内
部に薬剤の流通する導管（図示せず）を有する針棒１２
０を備えている。針棒１２０は、一端側に針先１２２を
備えるとともに他端側に前記注射筒４への装着部１２４
を備えている。In the figure, 102 is a syringe, 104 is a syringe barrel, 106
is a hypodermic needle. The syringe barrel 104 has a piston 110 that can slide in close contact with the inner wall surface 108 of the barrel, and is provided with an operating ridge 114 on the outer periphery of the outer wall surface 112 on one end side. An operating body 118 is provided on the piston 11O via an operating rod 116. The injection needle 106 is a needle bar 12 having a conduit (not shown) through which the drug flows.
0. The needle bar 120 includes a needle tip 122 at one end and a mounting portion 124 for attaching to the syringe barrel 4 at the other end.
It is equipped with
この注射器１０２により液状の薬剤である注射液を生体
組織１２６に注入する際には、注射針１０６の針先１２
２を生体組！１ｉ１２６の穿刺痛位１２８に当てて注射
針１０６の針棒１２０を穿刺し、操作体１１８により操
作杆１１６を介してピストン１１０を押し下げることに
より、注射筒１０４内の注射液を注入する。When injecting an injection solution, which is a liquid drug, into the living tissue 126 using this syringe 102, the needle tip 12 of the injection needle 106 is
2 is a biological group! The needle bar 120 of the injection needle 106 is applied to the puncture point 128 of the needle 1i 126, and the piston 110 is pushed down by the operating body 118 via the operating rod 116, thereby injecting the injection liquid in the syringe barrel 104.
ところが、注射器１０２により注射液を生体組織に注入
する際には、注射針１０６が生体組織１２６に穿刺され
ることにより、穿刺痛を生じる問題があった。即ち、第
９図に示す如く、生体組織１２６の穿刺痛位１２８に当
てられた針先１２２が、穿刺痛位１２８を押圧しつつ生
体組織１２６に突き刺されることにより穿刺痛を生じ、
この結果、患者に無用の苦痛を与えるという不都合があ
り、治療上不利となる問題があった。However, when injecting the injection liquid into living tissue using the syringe 102, there is a problem in that the injection needle 106 punctures the living tissue 126, causing puncture pain. That is, as shown in FIG. 9, the needle tip 122 applied to the puncture pain point 128 of the living tissue 126 causes puncture pain by being stuck into the living tissue 126 while pressing the puncture pain point 128.
As a result, there is an inconvenience in that unnecessary pain is caused to the patient, which is disadvantageous in terms of treatment.
そこでこの発明の目的は、注射針を生体組織に穿刺する
際の穿刺痛を緩和し得て、患者に与える苦痛を軽減し得
る注射針の穿刺痛緩和機構を有する注射器を実現するこ
とにある。Therefore, an object of the present invention is to realize a syringe having a mechanism for alleviating the puncture pain of a syringe needle, which can alleviate the puncture pain when the syringe needle is punctured into living tissue, and which can reduce the pain inflicted on the patient. be.
この目的を達成するためにこの発明は、注射針の穿刺痛
を軽減すべく前記注射針の穿刺に先立って穿刺痛位を押
圧刺激する穿刺痛緩和機構を設けたことを特徴とする。To achieve this object, the present invention is characterized by providing a puncture pain relief mechanism that presses and stimulates the puncture pain point prior to puncturing the injection needle in order to reduce the puncture pain of the injection needle. .
この発明の構成によれば、穿刺痛緩和機構によって、注
射針の穿刺に先立って穿刺痛位を押圧刺激することによ
り、注射針の穿刺痛を緩和することができる。According to the configuration of the present invention, the puncture pain relief mechanism can relieve the puncture pain of the injection needle by pressing and stimulating the puncture pain position prior to puncturing the injection needle.
以下図面に基づいてこの発明の実施例を詳細に説明する
。Embodiments of the present invention will be described in detail below based on the drawings.
第１〜４図はこの発明の第１実施例を示すものである。1 to 4 show a first embodiment of the invention.
第１図において、２は注射器、４は注射筒、６は注射針
である。注射筒４は、筒内壁面８に密着して摺動可能な
ピストン１０を有するとともに、一端側の部外壁面１２
外周に操作突縁１４を設けている。前記ピストン１０に
は、操作杆１６を介して操作体１８が設けられている。In FIG. 1, 2 is a syringe, 4 is a syringe barrel, and 6 is a syringe needle. The syringe barrel 4 has a piston 10 that can slide in close contact with an inner wall surface 8 of the barrel, and an outer wall surface 12 on one end side.
An operating protrusion 14 is provided on the outer periphery. An operating body 18 is provided on the piston 10 via an operating rod 16.
前記注射針６は、内部に薬剤の流通する導管（図示せず
）を有する針棒２０を備えている。針棒２０は、一端側
に針先２２を備えるとともに他端側に前記注射筒４への
装着部２４を備えている。The injection needle 6 includes a needle bar 20 having a conduit (not shown) through which a drug flows. The needle bar 20 includes a needle tip 22 at one end and a mounting portion 24 for attaching to the syringe barrel 4 at the other end.
前記注射針６の穿刺痛を軽減すべく、前記注射針６の穿
刺に先立って生体組！１ａ２６の穿刺痛位２８を押圧刺
激する穿刺痛緩和機構３０を設けている。In order to reduce the puncture pain of the injection needle 6, prepare a living body before puncturing the injection needle 6! A puncture pain alleviation mechanism 30 is provided which presses and stimulates the puncture pain position 28 of 1a26.
この第１実施例において、穿刺痛緩和機構３０は、注射
筒４の部外壁面１２に支持体３２により軸体３４を注射
針６の穿刺方向（矢印へ方向）及び引抜方向（矢印Ｂ方
向）に摺動可能に支持して設け、軸体３４を注射針６の
穿刺方向（矢印Ａ方向）に押進させる押進力を付与する
押進ばね３６を前記支持体３２とリテーナ３８との間に
縮設し、この軸体３４の一端側に抜止め用の係止体４０
を設け、この軸体３４の他端側に生体組織２６の穿刺痛
位２８を押圧刺激すべく押圧される押圧板４２を設けて
いる。この押圧板４２は、生体組織２６の穿刺痛位２８
に押圧される押圧面４４を注射針６の穿刺方向（矢印Ａ
方向）及び引抜方向（矢印Ｂ方向）に対して直交方向に
指向させて設けるとともに、前記注射針６の挿通される
挿通孔４６を設けている。In this first embodiment, the puncture pain alleviation mechanism 30 has a shaft body 34 attached to the outer wall surface 12 of the syringe barrel 4 by means of a support 32 in the puncturing direction (in the direction of the arrow) and in the withdrawal direction (in the direction of the arrow B) of the syringe needle 6. ) between the support body 32 and the retainer 38. A locking body 40 is provided between the shaft body 34 and one end of the shaft body 34 to prevent the shaft from coming off.
A pressing plate 42 is provided at the other end of the shaft body 34 to press and stimulate the puncture site 28 of the living tissue 26. This pressing plate 42 is located at the puncture pain point 28 of the living tissue 26.
The pressing surface 44 that is pressed by the injection needle 6 in the puncturing direction (arrow A
direction) and the withdrawal direction (direction of arrow B), and is provided with an insertion hole 46 through which the injection needle 6 is inserted.
次にこの第１実施例の作用を第２〜４図に従って説明す
る。Next, the operation of this first embodiment will be explained with reference to FIGS. 2 to 4.
注射器２により液状の薬剤である注射液を生体組織２６
に注入する際には、先ず、第２図に示す如く、穿刺痛緩
和機構３０の押圧板４２の押圧面４４を生体組１ａ２６
の穿刺痛位２８に当接して位置させる。次いで、第３図
に示す如く、注射器２の注射筒４を注射針６の穿刺方向
く矢印Ａ方向）に押進させると、押圧板４２を介し軸体
３４が注射針６の引抜方向く矢印Ｂ方向〉に摺動されて
押進ばね３６を圧縮する。この押進ばね３６の圧縮によ
る反力により押圧板４２の押圧面４４が穿刺痛位２８に
圧接され、穿刺痛位２８を押圧刺激する。Injection liquid, which is a liquid drug, is injected into living tissue 26 using a syringe 2.
When injecting into the living body assembly 1a26, first, as shown in FIG.
The needle is placed in contact with the puncture pain point 28. Next, as shown in FIG. 3, when the syringe barrel 4 of the syringe 2 is pushed in the puncturing direction of the syringe needle 6 (in the direction of arrow A), the shaft body 34 moves through the pressing plate 42 in the direction of the withdrawal direction of the syringe needle 6 (arrow A). B direction> and compresses the pushing spring 36. Due to the reaction force caused by the compression of the pushing spring 36, the pressing surface 44 of the pressing plate 42 is pressed against the puncture pain point 28, and presses and stimulates the puncture pain point 28.
押圧板４２の押圧面４４が穿刺痛位２８を押圧刺激して
いる状態で、さらに、第４図に示す如く、注射器２の注
射筒４を注射針６の穿刺方向（矢印Ａ方向）に押進させ
ると、押圧板４２を介して軸体３４が第３図の位置から
さらに注射針６の引抜方向（矢印Ｂ方向）に摺動されて
押進ばね３６を圧縮するとともに、注射針６の針先２２
が押圧板４２の挿通孔４６を挿通して生体＆Ｊｌ織２６
の穿刺痛位２８に当たり柊には注射針６の針棒２０が穿
刺される。While the pressing surface 44 of the pressing plate 42 presses and stimulates the puncture pain point 28, as shown in FIG. When pushed forward, the shaft body 34 is further slid from the position shown in FIG. needle tip 22
is inserted through the insertion hole 46 of the pressing plate 42 and the living body &Jl fabric 26
The needle bar 20 of the injection needle 6 is punctured into the holly at the puncture pain point 28.
操作体１８により操作杆１６を介してピストン１０を押
し下げ、注射筒４内の注射液の注入が完了したならば、
注射器２の注射筒４を注射針６の引抜方向く矢印Ｂ方向
〉に引退させ、注射針６を生体組織２６の穿刺痛位２８
から引抜く。注射針６が引抜かれると、押進ばね３６の
押進力によって軸体３４が注射針６の穿刺方向（矢印Ａ
方向）に摺動されることにより、押圧板４２は第２図に
示す原位置に復帰する。When the piston 10 is pushed down by the operating body 18 via the operating rod 16 and injection of the injection liquid into the syringe barrel 4 is completed,
The syringe barrel 4 of the syringe 2 is withdrawn in the direction of withdrawal of the syringe needle 6 (in the direction of arrow B), and the syringe needle 6 is inserted into the living tissue 26 at the puncture point 28.
Pull it out. When the injection needle 6 is pulled out, the pushing force of the pushing spring 36 causes the shaft body 34 to move in the puncturing direction of the injection needle 6 (arrow A
2), the pressing plate 42 returns to its original position as shown in FIG.
このように、穿刺痛緩和機構３０の押圧板４２によって
、注射針６の穿刺に先立って生体組織２６の穿刺痛位２
８を押圧刺激することにより、注射針６の穿刺痛を緩和
することができる。In this way, the pressure plate 42 of the puncture pain relief mechanism 30 adjusts the puncture pain position 2 of the biological tissue 26 prior to puncturing the injection needle 6.
By pressing and stimulating 8, the puncture pain of the injection needle 6 can be alleviated.
このため、注射針６を生体Ｍｉ織２６に穿刺する際の穿
刺痛を緩和することができ、患者に与える苦痛を軽減す
ることができるので、治療上有用である。Therefore, the puncture pain caused when the injection needle 6 is punctured into the biological Mi tissue 26 can be alleviated, and the pain caused to the patient can be alleviated, which is therapeutically useful.
なお、この第１実施例において、押圧板４２は、押圧面
４４を注射針６の穿刺方向（矢印Ａ方向）及び引抜方向
（矢印Ｂ方向）に対して直交方向に指向させて設けたが
、第５図に示す変形例の如く、押圧面４４を注射針６の
穿刺方向（矢印Ａ方向〉及び引抜方向（矢印Ｂ方向）に
対して傾斜する方向に指向させて設けることもできる。In this first embodiment, the pressing plate 42 was provided with the pressing surface 44 oriented in a direction perpendicular to the puncturing direction (arrow A direction) and withdrawal direction (arrow B direction) of the injection needle 6; As in a modification shown in FIG. 5, the pressing surface 44 may be oriented in a direction oblique to the puncturing direction (direction of arrow A) and withdrawal direction (direction of arrow B) of the injection needle 6.
この変形例によれば、注射針６を生体組織２６の穿刺痛
位２８に傾斜させて穿刺する場合にも、注射針６の穿刺
に先立って生体組！ａ２６の穿刺痛位２８を押圧刺激す
ることにより、注射針６の穿刺痛を緩和することができ
、患者に与える苦痛を軽減することができる。According to this modification, even when puncturing the living tissue 26 with the injection needle 6 at an angle to the puncture pain point 28, the living tissue is inserted before the injection needle 6 punctures the living tissue 26. By pressing and stimulating the puncture pain point 28 at a26, the puncture pain of the injection needle 6 can be alleviated, and the pain caused to the patient can be alleviated.
第６図は、この発明の第２実施例を示すものである。FIG. 6 shows a second embodiment of the invention.
第２実施例の穿刺痛緩和機構４８は、注射針６の針棒２
０に支持体５０により軸体５２・５２を注射針６の穿刺
方向（矢印Ａ方向）及び引抜方向く矢印Ｂ方向）に摺動
可能に支持して設け、軸体５２・５２を注射針６の穿刺
方向く矢印Ａ方向〉に押進させる押進ばね５４・５４を
前記支持体５０とリテーナ５６・５６との間に縮設し、
この軸体５２・５２の一端側に抜止め用の係止体５８・
５８を設け、この軸体５２・５２の他端側に生体＆ＩＩ
織２６の穿刺痛位２８を押圧刺激すべく押圧される押圧
板６０を設けている。この押圧板６０は、生体組織２６
の穿刺痛位２８に押圧される押圧面６２を注射針６の穿
刺方向（矢印Ａ方向）及び引抜方向（矢印Ｂ方向）に対
して直交方向に指向させて設けるとともに、前記注射針
６の挿通される挿通孔６４を設けている。The puncture pain alleviation mechanism 48 of the second embodiment includes the needle bar 2 of the injection needle 6.
0, the shaft bodies 52, 52 are supported by a support 50 so as to be slidable in the puncturing direction (direction of arrow A) and withdrawal direction (direction of arrow B) of the injection needle 6. Pushing springs 54, 54 for pushing in the puncturing direction (direction of arrow A) are compressed between the support body 50 and the retainers 56, 56,
A locking body 58 for preventing removal is provided on one end side of the shaft bodies 52.
58 is provided, and a living body &II is provided on the other end side of this shaft body 52
A pressing plate 60 is provided which is pressed to press and stimulate the puncture site 28 of the fabric 26. This pressing plate 60
A pressing surface 62 to be pressed against the puncture pain point 28 is oriented in a direction perpendicular to the puncturing direction (direction of arrow A) and withdrawal direction (direction of arrow B) of the hypodermic needle 6. An insertion hole 64 to be inserted is provided.
この第２実施例の構成によれば、穿刺痛緩和機構４８は
、注射針６の針棒２０に一体的に設けられているので、
第１実施例の穿刺痛緩和機構３０よりもコンパクトに構
成し得て、実用上有利である。According to the configuration of this second embodiment, the puncture pain alleviation mechanism 48 is integrally provided with the needle bar 20 of the injection needle 6.
It can be constructed more compactly than the puncture pain alleviation mechanism 30 of the first embodiment, which is advantageous in practice.
第７図は、この発明の第３実施例を示すものである。FIG. 7 shows a third embodiment of the invention.
第３実施例の穿刺痛緩和機構６６は、注射筒４に筒体６
８を注射針６の穿刺方向（矢印入方向〉及び引抜方向（
矢印Ｂ方向）に摺動可能に外嵌して設け、筒体６８を注
射針６の穿刺方向（矢印入方向）に押進させる押進力を
付与する押進ばね７０を前記注射筒４の部外壁面１２に
設けたフランジ７２と筒体６８の一端側外周に設けた突
縁７４との間に縮設し、この筒体６８の他端側開口部位
に生体Ｍｉ織２６の穿刺痛位２８を押圧刺激すべく押圧
される押圧板７６を設けている。この押圧板７６は、生
体組織２２の穿刺痛位２４に押圧される押圧面７８を注
射針６の穿刺方向（矢印Ａ方向）及び引抜方向（矢印Ｂ
方向）に対して直交方向に指向させて設けるとともに、
前記注射針６の挿通される挿通孔８０を設けている。The puncture pain alleviation mechanism 66 of the third embodiment has a barrel body 6 attached to the syringe barrel 4.
8 indicates the puncture direction (arrow entry direction) and withdrawal direction (arrow direction) of the injection needle 6.
A pushing spring 70 is fitted onto the outside of the syringe barrel 4 so as to be slidable in the direction of arrow B), and applies a pushing force to push the barrel body 68 in the puncturing direction of the injection needle 6 (in the direction of arrow entry). It is compressed between a flange 72 provided on the outer wall surface 12 and a protrusion 74 provided on the outer periphery of one end of the cylindrical body 68, and the puncture pain of the biological Mi fabric 26 is provided at the opening on the other end of the cylindrical body 68. A pressing plate 76 is provided which is pressed to press and stimulate the position 28. This pressing plate 76 presses a pressing surface 78 that is pressed against the puncture site 24 of the living tissue 22 in the puncturing direction (arrow A direction) and withdrawal direction (arrow B) of the injection needle 6.
direction) and oriented in a direction perpendicular to
An insertion hole 80 through which the injection needle 6 is inserted is provided.
この第３実施例の構成によれば、穿刺痛緩和機構６６は
、生体組織２６の穿刺痛位２８を押圧刺激すべく押圧さ
れる押圧板７６を設けた筒体６８を注射筒４の部外壁面
１２に摺動可能に外嵌して設けているので、押圧板７６
の作動が滑らかであり、操作性を向上することができる
。According to the configuration of the third embodiment, the puncture pain alleviation mechanism 66 connects the syringe barrel 4 to the cylinder body 68 provided with the pressing plate 76 that is pressed to press and stimulate the puncture pain site 28 of the living tissue 26. Since the pressure plate 76 is provided so as to be slidably fitted on the outer wall surface 12,
The operation is smooth and the operability can be improved.
第８図は、この発明の第４実施例を示すものである。FIG. 8 shows a fourth embodiment of the invention.
第４実施例の穿刺痛緩和機ｖ！８２は、注射筒４の部外
壁面１２に筒体８４の筒内周面８６を密着させるととも
にこの筒体８４を注射針６の穿刺方向（矢印Ａ方向）及
び引抜方向（矢印Ｂ方向）に摺動可能に外嵌して設け、
筒体８４を注射針６の穿刺方向く矢印Ａ方向）に押進さ
せる押進力を付与する押進ばね８６を前記注射筒４の部
外壁面１２に設けたフランジ８８と前記筒体８４の一端
側外周に設けた突縁９０との間に縮設し、この筒体８４
の他端側開口部位に生体組Ｉａ２６の穿刺痛位２８を押
圧刺激すべく押圧される環状押圧部９２を設けている。Fourth embodiment of puncture pain relief machine v! 82 brings the inner circumferential surface 86 of the barrel 84 into close contact with the outer wall surface 12 of the syringe barrel 4, and also moves the barrel 84 in the puncturing direction (direction of arrow A) and withdrawal direction (direction of arrow B) of the syringe needle 6. Slidably fitted onto the outside,
A flange 88 provided on the outer wall surface 12 of the syringe barrel 4 and a pushing spring 86 that applies a pushing force to push the barrel 84 in the puncturing direction of the injection needle 6 (direction of arrow A) This cylindrical body 84 is compressed between the projecting edge 90 provided on the outer periphery of one end.
An annular pressing portion 92 that is pressed to press and stimulate the puncture pain point 28 of the living body assembly Ia 26 is provided at the other end side opening portion.
この環状押圧部９２は、生体＆［ａ２６の穿刺痛位２８
に押圧される環状押圧縁９４を注射針６の穿刺方向（矢
印Ａ方向）及び引抜方向（矢印Ｂ方向）に対して直交方
向に指向させて設けている。This annular pressing part 92 is located at the puncture pain position 28 of the living body
An annular pressing edge 94 that is pressed is oriented in a direction perpendicular to the puncturing direction (direction of arrow A) and withdrawal direction (direction of arrow B) of the injection needle 6.
この第４実施例の構成によれば、穿刺痛緩和機構８２は
、筒体８４の環状押圧部９２の環状押圧縁９４を生体組
織２６の穿刺痛位２８を当接して位置させ、注射筒４を
注射針６の穿刺方向（矢印Ａ方向）に押進させると、注
射筒４の部外壁面１２に筒体８４の筒内周面８６を密着
させていることにより、筒体８４内の空気が圧縮されて
環状押圧縁９４内の穿刺痛位２８に空気圧が作用し、穿
刺痛位２８を押圧刺激する。According to the configuration of the fourth embodiment, the puncture pain alleviation mechanism 82 positions the annular pressing edge 94 of the annular pressing part 92 of the cylinder body 84 in contact with the puncture pain position 28 of the living tissue 26, and When the barrel 4 is pushed in the puncturing direction of the injection needle 6 (in the direction of arrow A), the inside of the barrel 84 is moved because the inner circumferential surface 86 of the barrel 84 is in close contact with the outer wall surface 12 of the syringe barrel 4. The air is compressed and the air pressure acts on the puncture pain point 28 within the annular pressing edge 94, pressing and stimulating the puncture pain point 28.
このように、環状押圧縁９４内の穿刺痛位２８に空気圧
を作用させることにより、注射針６の穿刺痛を緩和する
ことができ、しかも空気圧によって押圧するので、穿刺
痛位２８への押圧刺激を和らげ得て、患者に与える苦痛
を軽減することができ、治療上有用である。In this way, by applying air pressure to the puncture pain point 28 within the annular pressing edge 94, the puncture pain of the injection needle 6 can be alleviated.Moreover, since the pressure is applied by air pressure, the puncture pain point 28 can be It is therapeutically useful because it can relieve pressure stimulation and reduce pain to patients.
以上詳細に説明した如くこの発明によれば、穿刺痛緩和
機構によって、注射針の穿刺に先立って穿刺痛位を押圧
刺激することにより、注射針の穿刺痛を緩和することが
できる。As described in detail above, according to the present invention, the puncture pain alleviation mechanism can relieve the puncture pain of the injection needle by pressing and stimulating the puncture pain site prior to puncturing the injection needle.
このため、注射針を生体組織に穿刺する際の穿刺痛を緩
和し得て、患者に与える苦痛を４１滅することができ、
治療上有用である。Therefore, it is possible to alleviate the puncture pain when puncturing the living tissue with the injection needle, and it is possible to eliminate the pain caused to the patient.
It is therapeutically useful.
第１〜４図は、この発明の第１実施例を示し、第１図は
注射針の穿刺痛緩和機構を有する注射器の斜視図、第２
〜４図は夫々注射針の穿刺状態を説明する注射器の側面
図である。
第５図は、第１実施例の変形例を示す注射針の穿刺痛緩
和機構を有する注射器の斜視図である。
第６図は、この発明の第２実施例を示す注射針の穿刺痛
緩和機構を有する注射器の斜視図である。
第７図は、この発明の第３実施例を示す注射針の穿刺痛
緩和機構を有する注射器の斜視図である第８図は、この
発明の第４実施例を示す注射針の穿刺痛緩和機構を有す
る注射器の斜視図である第９図は、従来例を示す注射針
の穿刺状態を説明する注射器の側面図である。
図において、２は注射器、４は注射筒、６は注射針、１
０はピストン、２０は針棒、２６は生体組織、２８は穿
刺痛位、３０・４８・６６・８２は穿刺痛緩和機構であ
る。1 to 4 show a first embodiment of the present invention, in which FIG. 1 is a perspective view of a syringe having a needle puncture pain relief mechanism;
Figures 1 to 4 are side views of the syringe, each illustrating the puncturing state of the injection needle. FIG. 5 is a perspective view of a syringe having a needle puncture pain relief mechanism showing a modification of the first embodiment. FIG. 6 is a perspective view of a syringe having a needle puncture pain relief mechanism showing a second embodiment of the present invention. FIG. 7 is a perspective view of a syringe having a mechanism for relieving needle puncture pain according to a third embodiment of the present invention. FIG. 8 is a perspective view of a syringe having a mechanism for relieving needle puncture pain according to a fourth embodiment of the present invention. FIG. 9, which is a perspective view of a syringe having a relaxation mechanism, is a side view of a syringe illustrating the puncturing state of a conventional syringe needle. In the figure, 2 is a syringe, 4 is a syringe barrel, 6 is a syringe needle, 1
0 is a piston, 20 is a needle bar, 26 is a living tissue, 28 is a puncture pain position, and 30, 48, 66, and 82 are puncture pain relief mechanisms.
Claims (1)
立って穿刺部位を押圧刺激する穿刺痛緩和機構を設けた
ことを特徴とする注射針の穿刺痛緩和機構を有する注射
器。1. A syringe with a needle puncture pain relief mechanism, characterized in that a puncture pain relief mechanism is provided that presses and stimulates the puncture site prior to puncturing the injection needle in order to reduce the puncture pain of the injection needle. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1285456A JPH03146070A (en) | 1989-11-01 | 1989-11-01 | Syringe equipped with pricking pain releasing mechanism for needle cannula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1285456A JPH03146070A (en) | 1989-11-01 | 1989-11-01 | Syringe equipped with pricking pain releasing mechanism for needle cannula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03146070A true JPH03146070A (en) | 1991-06-21 |
Family
ID=17691758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1285456A Pending JPH03146070A (en) | 1989-11-01 | 1989-11-01 | Syringe equipped with pricking pain releasing mechanism for needle cannula |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03146070A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2886148A1 (en) * | 2013-12-20 | 2015-06-24 | Sanofi-Aventis Deutschland GmbH | Drug delivery aid |
| WO2021123953A1 (en) * | 2019-12-19 | 2021-06-24 | Janssen Biotech, Inc. | Injection pump needle mechanics |
-
1989
- 1989-11-01 JP JP1285456A patent/JPH03146070A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2886148A1 (en) * | 2013-12-20 | 2015-06-24 | Sanofi-Aventis Deutschland GmbH | Drug delivery aid |
| WO2021123953A1 (en) * | 2019-12-19 | 2021-06-24 | Janssen Biotech, Inc. | Injection pump needle mechanics |
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