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WO1998040116A1 - Anesthetic needle for medical use - Google Patents

Anesthetic needle for medical use Download PDF

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Publication number
WO1998040116A1
WO1998040116A1 PCT/JP1997/000730 JP9700730W WO9840116A1 WO 1998040116 A1 WO1998040116 A1 WO 1998040116A1 JP 9700730 W JP9700730 W JP 9700730W WO 9840116 A1 WO9840116 A1 WO 9840116A1
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WO
WIPO (PCT)
Prior art keywords
needle
needle tube
cutting edge
catheter
inner peripheral
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.)
Ceased
Application number
PCT/JP1997/000730
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French (fr)
Japanese (ja)
Inventor
Ryochi Enishi
Akio Higuchi
Hayato Hyugaji
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Soken Co Ltd
Original Assignee
Soken Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Soken Co Ltd filed Critical Soken Co Ltd
Priority to PCT/JP1997/000730 priority Critical patent/WO1998040116A1/en
Publication of WO1998040116A1 publication Critical patent/WO1998040116A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/065—Guide needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia

Definitions

  • the present invention relates to a needle tube of an anesthesia needle into which a catheter or the like for injecting an anesthetic is inserted.
  • An anesthesia needle for performing anesthesia by inserting a catheter or the like has an outer needle formed of a needle tube having a blade-shaped bend.
  • anesthesia needle When anesthesia needle is used to anesthetize a specific nerve branching from the medulla, a needle tube is punctured into the human body so that the cutting edge is located in the epidural space, and the catheter is protruded from the opening in the cutting edge.
  • Epidural is injected through a catheter into the epidural.
  • To anesthetize a specific nerve adjust the length and direction of the catheter protruding from the cutting surface of the needle tube. After injection of the anesthetic, the catheter is withdrawn from the needle tube.
  • the catheter comes into contact with the rear inner peripheral edge of the opening where the inner peripheral surface intersects with the cutting surface of the needle tube blade.
  • the inner peripheral edge of the rear part that abuts the outer peripheral surface of the catheter is rounded at the tip by chamfering, but since the cutting edge surface and the inner peripheral surface intersect at an acute angle in the vertical cross section, the inner peripheral surface of the catheter Make contact with the bite. As a result, the catheter was damaged and sometimes cut off.
  • An object of the present invention is to provide a medical anesthesia needle that does not damage a catheter that enters and exits an opening in a blade edge surface. Disclosure of the invention The present invention relates to a needle tube of a medical anesthesia needle having a bevel-shaped bend in a medical anesthetic needle. The rear inner peripheral edge of the opening where the cutting edge surface and the inner peripheral surface intersect is cut so that the rear radial width is less than half of the front radial width, and the rear surface is provided. The lower end edge where the planes intersect forms an obtuse angle in the vertical section including the needle center.
  • This cutting can be done by mechanical cutting, but it takes time and effort to remove the generated burrs, so it is necessary to melt and cut the rear inner peripheral part of the opening by electric discharge machining that does not generate burrs. Is preferred.
  • the needle tube of the anesthesia needle of the present invention retreats, and the rear inner peripheral edge of the opening is retracted from the conventional one by resection, and the The lower end edge where the inner peripheral surface intersects with the rear peripheral portion, which is in contact with the lateral peripheral surface, has an obtuse angle in the vertical cross section.
  • FIG. 1 is a side view of the outer needle of the anesthesia needle of the present invention
  • FIG. 2 is an enlarged plan view of the cutting edge of the needle tube of FIG. 1,
  • FIG. 3 is an enlarged sectional view of the cutting edge of the needle tube of FIG. 1,
  • FIG. 4 is an enlarged view of part A of FIG. 3,
  • FIG. 5 is a diagram corresponding to FIG. 4 of another embodiment
  • FIG. 6 is a diagram corresponding to FIG. 4 of yet another embodiment, BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a side view showing the appearance of an anesthesia needle 1 called an outer needle.
  • the anesthesia needle 1 is composed of a needle base 2 and a needle tube 10 extending from the needle base. When the needle tube 10 is horizontal and the cutting edge surface 12 faces upward, the front cutting edge portion 11 bends upward.
  • FIG. 2 is an enlarged plan view of the cutting edge portion 11 viewed from the cutting edge surface 12 side, and the cutting edge surface 12 surrounding the opening 16 of the needle tube 10 is a ring-shaped ellipse having different radial widths before and after. . This is done by cutting the inner peripheral surface 13 behind the opening 16 so that the radial width behind the cutting edge surface 12 is half the radial width ahead of the cutting surface 12 to form the rear surface 14 of the opening 16 It depends.
  • FIG. 3 is an enlarged cross-sectional view showing a state in which the inserted catheter 3 is projected from the opening 16 of the cutting edge 11, and the side peripheral surface of the catheter 3 is viewed from the rear cutting edge 12.
  • the lower end edge 15 where the hanging rear surface portion 14 and the inner peripheral surface 13 intersect is contacted.
  • FIG. 4 is an enlarged view of a portion indicated by A in FIG.
  • the rear surface portion 14 is formed so that the cutting edge surface 12 of the cutting edge portion 11 intersects with the inner peripheral surface 13 to form an acute angle, so that the radial width behind the cutting edge surface 12 becomes approximately half. It is formed by cutting away perpendicularly to the needle axis. Therefore, the position of the lower edge 15 in contact with the catheter 3 is retreated and the force te is reduced as compared with the conventional one in which the rear radial width of the cutting edge is the same as the front radial width. Since the cross-sectional angle of the lower edge 15 in contact with the tell 3 is an obtuse angle that is greater than a right angle, it can be said that there is almost no risk of biting into the catheter and causing damage.
  • the rear part 14 in Fig. 4 is a concave surface perpendicular to the needle axis, As described above, the rear surface portion 14 of the cutting edge portion 11 may be formed as a concave surface that becomes narrower below the horizontal needle axis. In this case, the intersection angle between the rear surface portion 14 and the inner peripheral surface 13 is smaller than that in FIG. 4, but the position of the lower edge 15 is more retreated than the conventional one, and the cross-sectional angle is smaller. Due to the acute angle or slightly greater, the lower edge 15 is less likely to cut into the catheter and cause damage.
  • the rear surface portion 14 of the cutting edge portion 11 may be formed as a concave surface that expands downward with respect to the needle axis when the needle tube is horizontal.
  • the intersection angle between the rear surface portion 14 and the inner peripheral surface 13 is further larger than that in FIG. 4, and the position of the lower edge 15 is further retracted. Since the cross-sectional angle of the lower edge is a larger obtuse angle, it can be said that there is no risk of damaging the catheter.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A needle tube (10) for a hollow anesthetic needle for medical use by which a patient is anesthetized with a catheter (3) for injecting an anesthetic into the body of the patient inserted in the needle tube so that the catheter (3) projects from an edge surface (12) of a doglegged blade portion (11). When the needle tube (10) is placed horizontally with the blade portion (11) and edge surface (12) directed forward and upward respectively, a rear portion of an opening (16) of an inner circumferential surface (13) crossing the edge surface (12) of the blade portion (11) is cut off so that a radial width of a rear portion of the edge surface (12) becomes not more than a half of that of a front portion thereof. In the position suggested above, an arcuate rear surface portion (14) crossing the inner circumferential surface (13) at right angles or at an angle larger than the same in a vertical cross section including the axis of the needle tube is formed.

Description

明細書 医療用麻酔針 技術分野  Description Medical anesthesia needle Technical field

この発明は麻酔薬を注入するカテーテル等が内挿される麻酔針の針管 に関するものである。 背景技術  The present invention relates to a needle tube of an anesthesia needle into which a catheter or the like for injecting an anesthetic is inserted. Background art

カテーテル等を内挿して麻酔を施す麻酔針は、 刃先部がくの字形に曲 がる形状の針管からなる外針を有する。 この麻酔針により眘髄から分岐 する特定の神経に麻酔を施す場合、 針管を刃先面が硬膜外腔に位置する ように人体に穿刺し、 その刃先面の開口からカテーテルを突出させ、 そ のカテーテルを通じて硬膜外に麻酔薬を注入する。 特定の神経に麻酔を 施すため、 針管の刃先面から突出するカテーテルの長さ及び方向を調整 する。 麻酔薬の注入後、 カテーテルを針管から引き抜く。  An anesthesia needle for performing anesthesia by inserting a catheter or the like has an outer needle formed of a needle tube having a blade-shaped bend. When anesthesia needle is used to anesthetize a specific nerve branching from the medulla, a needle tube is punctured into the human body so that the cutting edge is located in the epidural space, and the catheter is protruded from the opening in the cutting edge. Epidural is injected through a catheter into the epidural. To anesthetize a specific nerve, adjust the length and direction of the catheter protruding from the cutting surface of the needle tube. After injection of the anesthetic, the catheter is withdrawn from the needle tube.

カテーテルの調整及び引き抜き操作をするとき、 カテーテルが針管刃 先部の刃先面と内周面が交差する開口の後部内周縁に接触する。 その力 テ一テル外周面に当接する後部内周縁は面取り加工により先端に丸みが 付されているが、 刃先面と内周面は垂直断面において鋭角で交差するた め、 カテーテルの側周面に食い込むように接触する。 その結果、 カテ一 テルが損傷し、 時には切断するという問題が起きていた。  When adjusting and pulling out the catheter, the catheter comes into contact with the rear inner peripheral edge of the opening where the inner peripheral surface intersects with the cutting surface of the needle tube blade. The inner peripheral edge of the rear part that abuts the outer peripheral surface of the catheter is rounded at the tip by chamfering, but since the cutting edge surface and the inner peripheral surface intersect at an acute angle in the vertical cross section, the inner peripheral surface of the catheter Make contact with the bite. As a result, the catheter was damaged and sometimes cut off.

本発明は刃先面の開口を出入するカテーテルに損傷を与えない医療用 麻酔針を提供することを目的とするものである。 発明の開示 本発明は、 刃先がくの字形に曲がる医療用麻酔針の針管において、 刃 先を前方に、 環状の刃先面を上に向け、 針軸を水平にしたとき、 開口を 囲む環状楕円形刃先面の後方の半径方向幅が前方の半径方向幅の半分以 下となるように、 刃先面と内周面が交差する開口の後方内周縁部分を切 除して後面部を設け、 その後面部と内周面が交差する下端縁が針心を含 む垂直断面において鈍角を形成するようにしたことにある。 An object of the present invention is to provide a medical anesthesia needle that does not damage a catheter that enters and exits an opening in a blade edge surface. Disclosure of the invention The present invention relates to a needle tube of a medical anesthesia needle having a bevel-shaped bend in a medical anesthetic needle. The rear inner peripheral edge of the opening where the cutting edge surface and the inner peripheral surface intersect is cut so that the rear radial width is less than half of the front radial width, and the rear surface is provided. The lower end edge where the planes intersect forms an obtuse angle in the vertical section including the needle center.

この切除は機械的切削によることも可能であるが、 発生したバリを除 去する仕上作業に手間を要するから、 バリを発生しない放電加工により、 開口の後方内周縁部分を溶融して切削することが好ましい。  This cutting can be done by mechanical cutting, but it takes time and effort to remove the generated burrs, so it is necessary to melt and cut the rear inner peripheral part of the opening by electric discharge machining that does not generate burrs. Is preferred.

このように、 針管の針軸を水平にして前方の刃先面を上に向けると、 本発明の麻酔針の針管は切除により開口の後方内周縁は従来のものより も後退し、 かつ、 カテーテルの側周面に当接する後面部と内周面が交差 する下端縁はその垂直断面が鈍角であるから、 カテーテルの側周面に食 い込んで損傷を与えるおそれは少ない。  As described above, when the needle axis of the needle tube is horizontal and the front cutting edge is directed upward, the needle tube of the anesthesia needle of the present invention retreats, and the rear inner peripheral edge of the opening is retracted from the conventional one by resection, and the The lower end edge where the inner peripheral surface intersects with the rear peripheral portion, which is in contact with the lateral peripheral surface, has an obtuse angle in the vertical cross section.

後面部は凹面であるが、 その凹面を下方が拡大する形状に形成すると、 カテーテル側周面に接触する下端縁は従来のものよりもさらに後退し、 その垂直断面の鈍角もさらに大きくなるから、 刃先面の開口から出入す るカテーテルが損傷して切断するおそれはほとんどなくなる。 図面の簡単な説明  Although the rear surface is concave, if the concave surface is formed in a shape that expands downward, the lower end edge that contacts the peripheral surface of the catheter retreats further than the conventional one, and the obtuse angle of the vertical cross section becomes even larger, There is almost no risk that the catheter that enters or exits through the opening in the cutting edge will be damaged and cut. BRIEF DESCRIPTION OF THE FIGURES

第 1図は、 本発明の麻酔針の外針の側面図、  FIG. 1 is a side view of the outer needle of the anesthesia needle of the present invention,

第 2図は、 第 1図の針管の刃先部の拡大平面図、  FIG. 2 is an enlarged plan view of the cutting edge of the needle tube of FIG. 1,

第 3図は、 第 1図の針管の刃先部の拡大断面図、  FIG. 3 is an enlarged sectional view of the cutting edge of the needle tube of FIG. 1,

第 4図は、 第 3図の A部をさらに拡大して示す図、  FIG. 4 is an enlarged view of part A of FIG. 3,

第 5図は、 別の実施例の第 4図に相当する図、  FIG. 5 is a diagram corresponding to FIG. 4 of another embodiment,

第 6図は、 さらに別の実施例の第 4図に相当する図、 発明を実施するための最良の形態 FIG. 6 is a diagram corresponding to FIG. 4 of yet another embodiment, BEST MODE FOR CARRYING OUT THE INVENTION

本発明を添付の図面に基づいて詳細に説明する。  The present invention will be described in detail with reference to the accompanying drawings.

第 1図は外針と呼ばれる麻酔針 1の外観を示す側面図であり、 麻酔針 1は針基 2と、 その針基から延長する針管 1 0とからなる。 針管 1 0を 水平にして刃先面 1 2を上に向けると、 前方の刃先部 1 1は上へくの字 形に曲がる。  FIG. 1 is a side view showing the appearance of an anesthesia needle 1 called an outer needle. The anesthesia needle 1 is composed of a needle base 2 and a needle tube 10 extending from the needle base. When the needle tube 10 is horizontal and the cutting edge surface 12 faces upward, the front cutting edge portion 11 bends upward.

第 2図は刃先部 1 1を刃先面 1 2側から見た拡大平面図であり、 針管 1 0の開口 1 6を囲む刃先面 1 2は半径方向幅が前後で異なる環伏楕円 形である。 これは、 開口 1 6の後方の内周面 1 3を刃先面 1 2の後方の 半径方向幅が前方の半径方向幅の半分になるように切除して開口 1 6の 後面部 1 4を形成したことによる。  FIG. 2 is an enlarged plan view of the cutting edge portion 11 viewed from the cutting edge surface 12 side, and the cutting edge surface 12 surrounding the opening 16 of the needle tube 10 is a ring-shaped ellipse having different radial widths before and after. . This is done by cutting the inner peripheral surface 13 behind the opening 16 so that the radial width behind the cutting edge surface 12 is half the radial width ahead of the cutting surface 12 to form the rear surface 14 of the opening 16 It depends.

第 3図は、 内挿したカテーテル 3を刃先部 1 1の開口 1 6から突出さ せた状態を拡大して示す断面図であり、 カテーテル 3の側周面は、 後方 の刃先面 1 2から垂下する後面部 1 4と内周面 1 3が交差する下端縁 1 5に接触する。  FIG. 3 is an enlarged cross-sectional view showing a state in which the inserted catheter 3 is projected from the opening 16 of the cutting edge 11, and the side peripheral surface of the catheter 3 is viewed from the rear cutting edge 12. The lower end edge 15 where the hanging rear surface portion 14 and the inner peripheral surface 13 intersect is contacted.

第 4図は、 第 3図に Aで示す部分をさらに拡大して示す図である。 後 面部 1 4は、 刃先部 1 1の刃先面 1 2と内周面 1 3が交差して鋭角を形 成する鎖線部分を、 刃先面 1 2の後方の半径方向幅が略半分になるよう に針軸に対して垂直に切除して形成したものである。 したがって、 カテ —テル 3と接触する下端縁 1 5の位置は、 刃先面の後方半径方向幅が前 方の半径方向幅と同じであった従来のものに比べると後退し、 かつ、 力 テ一テル 3に接触する下端縁 1 5の断面角度は直角よりも大きな鈍角で あるから、 カテーテルに食い込んで損傷を与えるおそれはほとんどない といえる。  FIG. 4 is an enlarged view of a portion indicated by A in FIG. The rear surface portion 14 is formed so that the cutting edge surface 12 of the cutting edge portion 11 intersects with the inner peripheral surface 13 to form an acute angle, so that the radial width behind the cutting edge surface 12 becomes approximately half. It is formed by cutting away perpendicularly to the needle axis. Therefore, the position of the lower edge 15 in contact with the catheter 3 is retreated and the force te is reduced as compared with the conventional one in which the rear radial width of the cutting edge is the same as the front radial width. Since the cross-sectional angle of the lower edge 15 in contact with the tell 3 is an obtuse angle that is greater than a right angle, it can be said that there is almost no risk of biting into the catheter and causing damage.

第 4図の後面部 1 4は針軸に対して垂直な凹面であるが、 第 5図に示 すように、 刃先部 1 1の後面部 1 4を水平な針軸に対して下方に狭くな る凹面に形成してもよい。 この場合、 後面部 1 4と内周面 1 3の交差角 度は第 4図のものよりも小さくなるが、 それでも、 下端縁 1 5の位置は 従来のものよりも後退し、 その断面角度は直角又はそれより少し大きい 鋭角であるから、 下端縁 1 5がカテーテルに食い込んで損傷を与えるお それは少ない。 The rear part 14 in Fig. 4 is a concave surface perpendicular to the needle axis, As described above, the rear surface portion 14 of the cutting edge portion 11 may be formed as a concave surface that becomes narrower below the horizontal needle axis. In this case, the intersection angle between the rear surface portion 14 and the inner peripheral surface 13 is smaller than that in FIG. 4, but the position of the lower edge 15 is more retreated than the conventional one, and the cross-sectional angle is smaller. Due to the acute angle or slightly greater, the lower edge 15 is less likely to cut into the catheter and cause damage.

第 6図に示すように、 刃先部 1 1の後面部 1 4を、 針管を水平にした ときの針軸に対して下方が拡大する凹面に形成してもよい。 この場合、 後面部 1 4と内周面 1 3の交差角度は第 4図のものよりもさらに大きく なり、 下端縁 1 5の位置はさらに後退する。 下端縁の断面角度はさらに 大きな鈍角となるから、 カテーテルに損傷を与えるおそれは全くないと いえる。  As shown in FIG. 6, the rear surface portion 14 of the cutting edge portion 11 may be formed as a concave surface that expands downward with respect to the needle axis when the needle tube is horizontal. In this case, the intersection angle between the rear surface portion 14 and the inner peripheral surface 13 is further larger than that in FIG. 4, and the position of the lower edge 15 is further retracted. Since the cross-sectional angle of the lower edge is a larger obtuse angle, it can be said that there is no risk of damaging the catheter.

Claims

請求の範囲 The scope of the claims 1. くの字形に曲がる刃先部 （11) を有し、 カテーテル （3) が刃先 面 （ 12) の開口 （16) を出入する麻酔針 （ 1 ) の針管 （10) にお いて、 前記針管を水平にして前記刃先部 （11) を前方に、 前記刃先面 (12) を上に向けたとき、 前記刃先面 （12) と交差する内周面 （1 3) の開口 （16) の後方部分は、 前記刃先面 （12) の後方の半径方 向幅が前方の半径方向幅の半分以下となるように切除されて、 そこにび 凹面状の後面部 （14) が形成され、 前記後面部 （14) と前記内周面 (13) は、 前記針管の針軸を含む垂直断面において 90度以上の角度 で交差する下端縁 （15) を形成することを特徴とする医療用麻酔針。 1. The needle tube (10) of the anesthesia needle (1) having a blade-shaped portion (11) bent in a U-shape and through which the catheter (3) passes through the opening (16) of the blade surface (12). When the cutting edge (11) is directed forward and the cutting edge surface (12) is directed upward, the back of the opening (16) of the inner peripheral surface (1 3) intersecting with the cutting edge surface (12) The portion is cut away such that the radial width behind the cutting edge surface (12) is less than or equal to half the forward radial width, and a concave rear surface portion (14) is formed there. A medical anesthesia needle, wherein the surface portion (14) and the inner peripheral surface (13) form a lower edge (15) that intersects at an angle of 90 degrees or more in a vertical cross section including the needle axis of the needle tube. 2. 前記後面部 （14) は前記内周面 （13) の開口 （16) の後方部 分を放電加工により溶融除去して形成されたことを特徴とする請求の範 囲 1記載の医療用麻酔針。  2. The medical device according to claim 1, wherein the rear surface portion (14) is formed by melting and removing a rear portion of the opening (16) of the inner peripheral surface (13) by electric discharge machining. Anesthesia needle. 3. 前記後面部 （14) は前記針管の針軸に垂直な凹面状であることを 特徴とする請求の範囲 1又は 2記載の医療用麻酔針。 3. The medical anesthesia needle according to claim 1, wherein the rear surface portion (14) has a concave shape perpendicular to a needle axis of the needle tube. 4. 前記後面部 （14) は前記針管の針軸に垂直な方向に下方が狭くな る凹面伏であることを特徴とする請求の範囲 1又は 2記載の医療用麻酔 針。 4. The medical anesthesia needle according to claim 1, wherein the rear surface portion (14) has a concave surface with a downward narrowing in a direction perpendicular to the needle axis of the needle tube. 5. 前記後面部 （14) は前記針管の針軸に垂直な方向に下方が拡大す る凹面状であることを特徴とする請求の範囲 1又は 2記載の医療用麻酔 針。 5. The medical anesthesia needle according to claim 1, wherein the rear surface portion (14) has a concave shape expanding downward in a direction perpendicular to a needle axis of the needle tube.
PCT/JP1997/000730 1997-03-10 1997-03-10 Anesthetic needle for medical use Ceased WO1998040116A1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001066177A1 (en) * 2000-03-08 2001-09-13 Dr. Japan Co., Ltd. Diagnosis or therapy puncture needle
WO2002007801A3 (en) * 2000-07-20 2002-05-23 Becton Dickinson Co Epidural needle with secondary bevel
GB2425484A (en) * 2005-04-29 2006-11-01 Univ Hospital Birmingham Nhs F Improvement in and relating to catheter needles
CN104114220A (en) * 2011-08-18 2014-10-22 光谱医疗器械公司 Introducer for radiofrequency needle
JP2015002920A (en) * 2013-06-21 2015-01-08 株式会社パイオラックスメディカルデバイス Guide wire insertion device

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JPS5951863A (en) * 1982-09-17 1984-03-26 テルモ株式会社 Stay cathetel and production thereof
JPS5951862A (en) * 1982-08-06 1984-03-26 ジヨン・マ−テイン・エバンス Medical device
JPH04309369A (en) * 1991-01-17 1992-10-30 Fresenius Ag Canula

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JPS5951862A (en) * 1982-08-06 1984-03-26 ジヨン・マ−テイン・エバンス Medical device
JPS5951863A (en) * 1982-09-17 1984-03-26 テルモ株式会社 Stay cathetel and production thereof
JPH04309369A (en) * 1991-01-17 1992-10-30 Fresenius Ag Canula

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001066177A1 (en) * 2000-03-08 2001-09-13 Dr. Japan Co., Ltd. Diagnosis or therapy puncture needle
WO2002007801A3 (en) * 2000-07-20 2002-05-23 Becton Dickinson Co Epidural needle with secondary bevel
GB2425484A (en) * 2005-04-29 2006-11-01 Univ Hospital Birmingham Nhs F Improvement in and relating to catheter needles
CN104114220A (en) * 2011-08-18 2014-10-22 光谱医疗器械公司 Introducer for radiofrequency needle
EP2744556A4 (en) * 2011-08-18 2015-05-27 Spectra Medical Devices Inc Introducer for radiofrequency needle
US9125684B2 (en) 2011-08-18 2015-09-08 Spectra Medical Devices, Inc. Introducer for radiofrequency needle
JP2015002920A (en) * 2013-06-21 2015-01-08 株式会社パイオラックスメディカルデバイス Guide wire insertion device

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