WO2005079887A1

WO2005079887A1 - Safety instrument for wing-like needle

Info

Publication number: WO2005079887A1
Application number: PCT/JP2005/002619
Authority: WO
Inventors: Chikashi Kondo
Original assignee: Chikashi Kondo
Priority date: 2004-02-20
Filing date: 2005-02-18
Publication date: 2005-09-01
Also published as: JPWO2005079887A1

Abstract

A safety instrument for a wing-like needle, having a protective cap (20) provided with a cutout section (23) through which a base section of superposed wing sections (32) passes and with a claw section (24) for preventing coming off of the wing sections (32) inserted in the cutout section (23); a flat case body (10) for receiving and holding the protective caps (20); and an adhesive layer provided on the bottom surface of the case body (10). A double-faced adhesive tape with release paper can be used as the adhesive layer. The case body (10) is fixed by the adhesive layer to a desired place beside a patient. After injection or infusion, the wing-like needle (30) is withdrawn from an affected part by holding the winged sections (32), and a needle (31) is inserted straight into the protective cap (20) and then withdrawn from the case body (10), causing the protective cap (20) to cover the needle (31). This eliminates danger of the needle pricking the other hand and enables blood stanching with the other hand after the wing-like needle is withdrawn. Thus, the safety instrument makes it possible that the wing-like needle is reliably inserted into the protective cap only with the hand holding the wing section of the wing-like needle.

Description

Specification

Wing needle safety equipment

Technical field

The present invention relates to a winged needle safety device capable of preventing a needle sticking accident in which a used winged needle accidentally stabs a finger or the like.

Background art

[0002] In recent years, a so-called "needle stick accident" in which doctors, nurses, hospital cleaners, and the like accidentally stab an injection needle used for a patient with a finger or the like has become a problem. As a result of this needlestick accident, healthcare workers and medical waste processors are infected with HIV (Human Immunodeficiency Virus, so-called AIDS Winores), HCV (Hepatitis C virus), HBV (Hepatitis B virus), etc. from the patient's blood. He has been forced to live for a long time and has died.

[0003] There are two types of injection needles: a needle attached to the tip of a disposable syringe, and a winged needle that is a needle with a tube used for intravenous injection, blood collection, and infusion. This winged needle is so named because the part of the wing that you hold at the fingertip resembles the shape of a wing.

[0004] It has been reported that puncture needle puncture accidents are concentrated after use until disposal. It is the characteristic force of the structure that the winged needle is coiled and the support of the needle tip is unstable.

[0005] In order to prevent such a needle stick accident of the winged needle, the force of putting a protective cap on the winged needle immediately after use (recapping) is also common.

[0006] In order to solve such a problem, Patent Document 1 discloses a needle stab provided with a collapsible protrusion of a sword on one end of a needle cap of a syringe needle or a winged needle attached to a syringe. Accident prevention needle caps have been proposed.

[0007] Further, Patent Document 2 discloses a needle for injection, a needle hub communicating with the inside of the needle at the distal end of the needle, an elongated rod-shaped main body, and a needle provided on the distal end side. A needle assembly comprising a protector having a needle tip protection part which is a hollow cylindrical body that slides, and an internal passage for accommodating the needle and the needle tip protection part therein is provided at the distal end side of the needle knob. Tubular hub cover The needle hub and the hub cover have a shape in which a side hole that can communicate the outside and the internal passage of the hub cover when they are joined is formed, and the protector body is connected to the side hole. A needle assembly that can be moved distally or proximally is disclosed.

[0008] Patent Document 3 discloses that a sawtooth-shaped irregularity is formed on a surface that becomes an outer side when a wing portion of a winged needle is folded, and a notch or a slit is formed in an axial direction of an opening end force of a cylindrical cap body. There is disclosed a winged injection needle configured to increase the frictional force between the notch or the slit when the wing is sandwiched in the notch or the slit of the formed injection needle protection cap.

[0009] Patent Document 4 discloses an injection needle protection cap formed of a cylindrical body having an insertion port at least at one end and capable of holding an injection needle, wherein a peripheral wall including the insertion port is moved from the insertion port side to the distal side. A plurality of injection needle protection caps, each of which has a notch in a vertically long shape and has a locking piece for locking a winged needle directed toward the insertion port at the distal end of the notch, and a plurality of injection needle protection caps. A case body that can be stored is disclosed.

[0010] Patent Document 5 discloses an injection needle protection cap formed of a cylindrical body having an insertion port at one end and capable of holding an injection needle, wherein a peripheral wall including the insertion port is formed on a distal end side of the insertion port side cap. An injection needle protection cap having a notch in a vertically elongated shape in a direction toward the end thereof, and a slit for locking the winged needle toward the other end of the cylindrical body; A case body that houses multiple caps and holds the protective cap in a position where a used winged needle can be inserted through the insertion port, such as a used injection needle !, and an injection needle protection cap attached to this case body There is disclosed an injection needle processing tool provided with an opening / closing lid for preventing slipping out.

[0011] Further, as a commercially available product, an injection needle is housed inside a tubular wing protector provided with a wing, and the needle is drawn into the wing protector after use of the needle so that the tip of the needle is not exposed. A needle piercing prevention device is provided (for example, product name “Seichi Futsuchi PSV Set” manufactured by Nipro Corporation).

Patent Document 1: JP 2003-93507 A

Patent Document 2: JP 2003-33435 A

Patent Document 3: JP-A-2000-84076

Patent Document 4: JP-A-11 47276 Patent Document 5: JP-A-2000-14781

Disclosure of the invention

Problems to be solved by the invention

[0013] In the needle cap for preventing a needle stick accident disclosed in Patent Document 1 described above, since the tip of the winged needle comes into contact with the sword-like protrusion of the sword, the blood adhering to the tip of the winged needle contacts the protrusion. There is a risk of infection if the skin comes into contact with the blood, which is highly likely to adhere.

[0014] The needle assembly disclosed in Patent Document 2 has a problem that it cannot be applied to existing winged needles because of the structure in which the needle and the protector are assembled.

[0015] The winged injection needle disclosed in Patent Document 3 has a problem that it cannot be applied to existing winged needles because it has a structure in which sawtooth-shaped irregularities are formed on the wings of the winged needle.

[0016] In the protective cap injection needle treatment device disclosed in Patent Document 4, the winged needle is inserted into the protective cap by holding the handle provided on the case main body with the empty hand, so that there is no danger of needle stick. No, but you need to use both hands.

[0017] The winged needle treatment device disclosed in Patent Document 5 also basically needs to use both hands because it holds the case body with another hand different from the hand holding the syringe.

[0018] In the above-described needle stick prevention device of the type in which the needle is drawn into the wing protector, when the needle is drawn into the wing protector, it is necessary to use both the hand that draws in and the hand that has the wings. In addition, the needle tip is located near the wing, so there is a risk that the blood at the needle tip may adhere to the hand holding the wing.

[0019] After a doctor or nurse performs an injection or infusion, when the winged needle is pulled out of the patient's body, the puncture of the skin pierced by the winged needle causes blood to come out. You need to hold the hole and wait for the blood to clot and stop. Normally, the patient is instructed to hold it down.However, if the patient is weak or unconscious, the doctor, etc. who made the injection, etc., will use the hand opposite to the hand holding the removed winged needle. It is necessary to hold with. Then, a device provided with a wing protector, which uses both hands to insert the protective cap, cannot be used. Asking an attendant or nurse to hold the cotton wool increases the risk of needle sticks as people move near the bare winged needle. [0020] In the instruments of Patent Documents 4 and 5, a stand is provided on a table or the like so that the winged needle can be inserted into the protective cap with only one hand (the hand holding the syringe). However, there is not always a place to put a stand near the site where injections and infusions are given. On bed sheets, the stands are not stable and fall off the sheets. When picking up the fallen stand, the winged needle may stick into doctors and others.

[0021] Therefore, an object of the present invention is to provide a winged needle safety device that can securely insert the winged needle into the protective cap with only the hand holding the winged portion of the winged needle.

Means for solving the problem

[0022] In order to solve the above-mentioned problems, the winged needle safety device according to the first configuration of the present invention is configured such that the wings of the winged needle provided with a pair of wings are vertically bent and overlapped. A protective cap having a notch through which the base of the superposed wing passes when inserting the winged needle in a state, and a claw for preventing the wing inserted into the notch from coming off. And a case body for housing and holding at least one of the protective caps, and a case holding means for stably holding the case body on a support is provided.

In the first configuration, the case main body is used by holding the case main body at an arbitrary place such as a desk in an examination room, a bedside of a patient, or on a sheet of a patient by a case holding means. At the time of use, the safety device of the present invention containing the protective cap is attached to an arbitrary place near the patient. When removing the winged needle after intravenous injection or infusion, doctors and nurses pinch the winged part with one hand while pinching the winged part with absorbent cotton, etc., and pinch both wings of the winged needle with the other hand. Raise and remove the winged needle, and insert the winged needle through the opening of the protective cap. Then, when the wing of the winged needle passes through the notch and is inserted to a predetermined position, the wing cannot be detached by the claw. If the winged needle is pulled out at that time, the protective cap is released from the case body force, and the state of the winged needle covered with the protective cap is reached. During this time, the case body is held in place by the case holding means, so that when inserting the winged needle into the protective cap or removing the protective cap, the case body is The protective cap can be securely attached without moving with the winged needle. The winged needle is then placed together with the protective cap. Discard in the designated safety container. The case body may be configured to store and hold one protective cap. This is convenient for the case of intravenous injection or infusion in hospital beds or home visits, etc., and for disposal once each time it is used only once. It is also possible to adopt a configuration in which a plurality of protective caps are stored and held in the case body. This is convenient and economical for processing multiple protective caps together when intravenous or infusion of multiple patients in the same room.

[0024] A second configuration of the present invention is characterized in that the case holding means is a non-slip layer provided on a back surface of the case main body and increasing friction with a surface of the support. Do

[0025] In the second configuration, since the anti-slip layer is provided on the bottom surface of the case main body, the case main body is placed at an arbitrary place such as a bedside of a patient or on a sheet of a patient. In addition, it can be installed without being easily moved in the horizontal direction. When the protective cap is put on the winged needle after intravenous injection or infusion, the case body is held in place by the non-slip layer, so when inserting the protective cap or removing the protective cap, the case Even if the force in the direction is strong, the protective cap can be securely attached so that the case body does not move with the winged needle.

[0026] A third configuration of the present invention is characterized in that the anti-slip layer is a silicone rubber layer.

[0027] According to the third configuration, the frictional resistance between the case body and the installation surface increases, so that when the wing-shaped needle is inserted into the protective cap, even if a force in the front-rear and left-right directions is applied to the case body, the case is prevented. The moving body can be prevented from moving.

[0028] A fourth configuration of the present invention is characterized in that the anti-slip layer is an adhesive layer.

[0029] In the fourth configuration, a doctor or a nurse can affix the case main body having the adhesive layer formed on the bottom part to an arbitrary place before venous injection or infusion. Since the adhesive layer effectively adheres to the surface of the fiber, it is perfectly fixed even if the fixing target is a cloth such as a sheet. When multiple protective caps are stored and held in the case body, the adhesive strength of the adhesive layer becomes weaker when pasted or peeled in place, but this case body has finished using the protective caps. It is only necessary to be able to attach the protective cap as many times as it is to be discarded. [0030] A fifth configuration of the present invention is characterized in that a release paper is attached to the surface of the adhesive layer. Thereby, the surface of the adhesive layer can be protected, and the release paper can be peeled off and attached at the time of use.

[0031] A sixth configuration of the present invention is characterized in that the adhesive layer is a double-sided tape. Thereby, the adhesive layer can be easily formed.

[0032] In a seventh configuration of the present invention, the bottom side of the case main body provided with the anti-slip layer and the center axis of the protective cap held by the case main body are higher on the opening side of the protective cap. It is characterized by being inclined.

[0033] In the seventh configuration, when the winged needle is inserted into the protective cap after the case main body is attached to a predetermined place, the winged needle is inserted along the attachment surface with a certain inclination. Since the winged needle can be inserted with an angle, it is easy to aim and open the protective cap.

[0034] In an eighth configuration of the present invention, the case holding means is mounted on the support, has at least one edge, and is formed substantially parallel to a surface of the edge. And a leg having elasticity formed at a lower front part of the case body. The rear part of the case body is brought into contact with the edge of the substrate, and the front part of the case body is formed. The case body is held on the substrate by holding the leg portion in a protrusion or a groove of the substrate.

[0035] In the eighth configuration, a case is used in which a leg is provided at a lower front portion of a case body, and an edge and a projection or a groove are provided on a substrate that can be placed on a tabletop or a bedside. Alternatively, if the case main body is mounted in such a manner that the front leg is engaged with the protrusion or the groove so that the rear portion contacts the edge between the grooves, the case main body can be held on the substrate. As the substrate, a substrate having heat resistance and chemical resistance such as stainless steel is preferable so that it can be washed many times after use, sterilized by high-temperature sterilization or sterilized with a chemical solution. The substrate may be in the form of a tray with an edge, which is usually used in hospitals, but may be a substrate having an edge at one location.

The invention's effect

According to the present invention, the wings of the winged needle provided with a pair of wings are vertically bent into one. A protection provided with a notch through which the base of the superposed wing passes when inserting the winged needle in the superposed state, and a claw for preventing the wing inserted into the notch from coming off. A cap, and a case body for storing and holding at least one of the protective caps, and a case holding means for stably holding the case body on a support. The winged needle can be securely inserted into the protective cap with only the hand that is held, so that needle puncture does not occur in the other hand, and treatment such as hemostasis of the patient can be performed with the free hand. it can.

Brief Description of Drawings

FIG. 1 shows a configuration of a case main body in a winged needle safety device according to Embodiment 1 of the present invention, wherein (a) is a plan view, (b) is a side view, and (c) is ( 2A is a cross-sectional view taken along line A-A, (d) is a front view, and (e) is a cross-sectional view taken along line BB in (a) and (c).

FIG. 2 is a bottom view showing a configuration of a case main body in the winged needle safety equipment according to Embodiment 1 of the present invention.

FIG. 3 is a view showing a configuration of a protective cap in the safety equipment according to Embodiment 1, wherein (a) is a plan view, (b) is a cross-sectional view, and (c) is a perspective view.

FIG. 4 is a perspective view showing a use state of the first embodiment.

FIG. 5 is a cross-sectional view showing a state in which the winged needle according to the first embodiment is attached to a protective cap.

FIG. 6 is a perspective view showing a safety device of a winged needle according to Embodiment 2 of the present invention.

FIG. 7 is a perspective view showing a configuration of a case main body in a winged needle safety device according to Embodiment 3 of the present invention.

FIG. 8 is a perspective view showing a case holding means according to Embodiment 4 of the present invention.

FIG. 9 is a sectional view showing a case holding means according to Embodiment 4 of the present invention.

Explanation of symbols

[0038] 10 case body, 11 top plate, 11a tongue piece, lib projection, 12 bottom plate, 13 side plate, 14 partition, 15 protective cap end receiver, 16 adhesive layer, 17 legs, 20 protective cap, 21 keys Yap body, 22 recess, 23 notch, 24 claw, 30 winged needle, 31 needle, 32 wing, 40 case body, 41 top plate, 41a tongue piece, 42 bottom plate, 43 side plate, 44 end of protective cap Receiver, 45 legs, 50 trays, 51 bottom plate, 52 edges, 53 protrusions, 54 non-slip layer Best mode for carrying out the invention

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

[Embodiment 1]

FIGS. 1 and 2 show a configuration of a case main body in a safety device for a winged needle according to Embodiment 1 of the present invention, wherein FIG. 1 ( _a ) is a plan view, (b) is a side view, (C) is an A-A cross-sectional view in (a), (d) is a front view, (e) is a BB cross-sectional view in (a) and (c), and FIG. 2 is a bottom view. FIGS. 3A and 3B show the configuration of the protective cap in the safety device according to the first embodiment, wherein FIG. 3A is a plan view, FIG. 3B is a sectional view, and FIG. 3C is a perspective view.

In these figures, the case main body 10 includes a top plate 11, a bottom plate 12, a side plate 13, a partition wall 14, and a protective cap end receiver 15. The partition 14 and the protective cap end receiver 15 form a protective cap mounting space in which a protective cap 20 (described later) is mounted. The bottom plate 12 is provided with an adhesive layer 16 formed by attaching a double-sided tape or the like, and a release paper is usually attached when not in use.

[0042] A tongue piece 11a extends in front of the top plate 11 so as to be located at the center of each protective cap mounting space, and a protrusion 1 lb is formed at the lower center of the tongue piece 1 la. You.

As shown in FIG. 3, the protective cap 20 includes a cap main body 21, a concave portion 22 with which the projection lib of the case main body 10 is engaged, and a notch 23 through which a wing of a winged needle (described later) passes. A claw portion 24 is formed to prevent the wing portion inserted into the notch portion 23 from coming off.

FIG. 4 is a perspective view showing a use state of the first embodiment, and FIG. 5 is a cross-sectional view showing a state where a winged needle is attached to a protective cap. In the case body 10 of the present embodiment, in this example, six protective caps 20 are set so that the concave portion 22 fits into the projection 1 lb below the tongue piece 1 la, and the winged needle also removes the patient force. Prior to this, the release paper of the adhesive layer 16 adhered under the bottom plate 12 is peeled off, and is adhered to, for example, a sheet of a patient.

Next, after the intravenous injection or drip is completed, the patient is stuck in the affected area! / The wings 32 of the winged needle 30 are pinched with a finger to be overlapped and extracted, and the winged needle 30 is left as it is. Insert the needle 31 at the end of the inside of the protective cap 20. Then, the wing portion 32 of the winged needle 30 pushes and spreads the claw portion 24 and is inserted into the notch portion 23 (see FIG. 5). Pull out the winged needle 30 in that state Then, the wings 32 catch on the claws 24. Since the engagement between the projection l ib at the lower part of the tongue 11a of the case body 10 and the recess 22 of the protective cap 20 is weak, and because the case body 10 is fixed to sheets, etc. With the protective cap 20 attached to the needle 30, the protective cap 20 is pulled out of the case body 10.

[0046] In this way, the doctor or the like can remove the affected part of the winged needle 30 by holding the wing part 32 and put the protective cap 20 on the needle 31 of the winged needle 30 without changing the posture of the hand. Since this operation can be performed with one hand holding the wing portion 32, the other hand can be used to hold the bandage for hemostasis or the like, or the other hand can be turned around the tip of the winged needle 30. Since there is no need, safety can be maintained.

[0047] After removing the winged needle 30 and attaching the protective cap 20, the case body 10 is peeled off from the place where it has been pasted, affixed with release paper, and reused by the number of protective caps 20. In this example, since six protective caps 20 are attached to the case main body 10, the case main body 10 is discarded after being used six times. The winged needle 30 covered with the protective cap 20 is also disposed of according to a predetermined standard.

[0048] In the first embodiment, an example in which the adhesive layer 16 is provided on the bottom surface of the case body 10 has been described. However, instead of the adhesive layer 16, an installation surface such as a silicon rubber layer may be used. A non-slip layer that increases the frictional resistance between the entire surface and the part may be provided!

[Embodiment 2]

FIG. 6 is a perspective view showing a winged needle safety device according to Embodiment 2 of the present invention. In the second embodiment, the case body 10 of the first embodiment is provided with a downwardly curved leg 17 at a lower front portion thereof, so that the case body 10 is inclined and placed on the installation surface. I'm familiar. The rear end of the bottom plate 12 is horizontal so as to be closely attached to the installation surface with the case body 10 inclined. An adhesive layer 16 is provided on the surface of the bottom plate 12 as in the first embodiment.

[0050] In the second embodiment, the provision of the legs 17 can increase the inclination of the protective cap 20 attached to the case body 10, so that when the winged needle is inserted, the protective cap 20 is not used. The opening makes it easier to see the upward force. Therefore, the winged needle can be reliably inserted.

[Embodiment 3] FIG. 7 is a perspective view showing a configuration of a case main body in a winged needle safety device according to Embodiment 3 of the present invention.

In these figures, the case main body 40 includes a top plate 41 having a tongue piece 41a, a bottom plate 42, a side plate 43, and a protection cap end receiver 44. A leg 45 curved downward is formed at the front bottom of the case body 40, so that the case body 40 is inclined and placed on the installation surface. The bottom plate 42 comes into close contact with the installation surface with the case body 40 inclined. The protective cap end receiver 44 forms a protective cap mounting space in which the same protective cap 20 as in the first embodiment is mounted. An adhesive layer (not shown) formed by attaching a double-sided tape or the like is provided on the bottom surface of the bottom plate 42, and a release paper is usually attached when not in use.

[0053] This method of use is the same as in Embodiments 1 and 2, and a description thereof will be omitted.

In the third embodiment, for example, when intravenous injection or infusion is performed on a hospital bed, only one patient uses a winged needle, covers the protective cap 20 after use, and disposes each time. Useful for

[Embodiment 4]

FIGS. 8 and 9 are a perspective view and a sectional view showing a case holding means according to Embodiment 4 of the present invention.

In the fourth embodiment, a bottom plate 51 of a stainless steel tray 50 used in a hospital or the like is usually provided with a projection or a groove (projection 53 in the illustrated example) parallel to the edge 52. Between 53, the case body 10 of the second embodiment or the case body 40 of the third embodiment is attached, and the case body 10 or 40 (in the illustrated example, the case body 10 of the second embodiment) is held. It is like that. In addition, a part of the bottom surface of the bottom plate 51 is provided with a non-slip layer 54 such as a silicon rubber for non-slip, which can withstand drugs and temperature and generates friction between the mounting surface. .

In the first to third embodiments, the adhesive layer 16 is used to hold and fix the case main bodies 10 and 40 to a table or a bed sheet of a patient. In the fourth embodiment, an injection is performed in a hospital. An adhesive layer 16 is not required by providing a structure that can hold the case bodies 10 and 40 on a tray that sometimes carries an intravenous syringe or an intravenous drug or device on the bedside. In other words, the case bodies 10 and 40 according to the second and third embodiments have the elastic legs 17 and 45 formed at the lower front part thereof. 5 2Hold the legs, 45 in front of the gate body 10, 40 with the projection 53 of the tray 50 or the gutter groove. Main bodies 10 and 40 are held in tray 50.

[0059] The tray 50 may be provided with several projections 53 or grooves to hold a plurality of case bodies of different types and sizes.

In the fourth embodiment, the substrate is not limited to the force tray showing the tray 50, and may be a substrate having an edge at one location and having a projection or groove formed in parallel with the edge.

Industrial applicability

[0061] The present invention can be used in the medical field and its manufacturing field as a winged needle safety device that can prevent a needle stick accident in which a used winged needle accidentally stabs a finger or the like. .

Claims

The scope of the claims

[1] A notch through which the base of the superimposed wing passes when inserting the needle of the wing in a state where the wing of a wing having a pair of wings is bent vertically and overlapped with one another. A protective cap having a portion, a claw portion for preventing the wing portion inserted into the cutout portion from coming off, and a case main body for storing and holding at least one of the protective caps. A safety device for a winged needle, comprising a case holding means for stably holding a main body to a support.

[2] The safety of the winged needle according to claim 1, wherein the case holding means is a non-slip layer provided on a back surface of the case body and increasing friction with a surface of the support. All equipment.

3. The safety device for an injection needle according to claim 2, wherein the non-slip layer is a silicone rubber layer.

4. The safety device for an injection needle according to claim 2, wherein the anti-slip layer is an adhesive layer.

5. The safety device for a winged needle according to claim 4, wherein a release paper is attached to a surface of the adhesive layer.

6. The winged needle safety device according to claim 4, wherein the adhesive layer is a double-sided tape.

[7] The bottom surface of the case main body on which the anti-slip layer is provided and a center axis of the protective cap held by the case main body are inclined such that the opening side of the protective cap is higher. The safety device for a winged needle according to any one of claims 2 to 6, wherein:

[8] The case holding means is mounted on the support, has at least one edge, and has a projection or a groove formed substantially parallel to the edge surface; An elastic leg formed at the lower front part of the case body, with the rear of the case body contacting the edge of the board, and the leg part in front of the case body protruding from the board or 2. The winged needle safety device according to claim 1, wherein the case main body is held on the substrate by holding the case body in a groove.