WO2007126085A1 - 安全針組立体 - Google Patents
安全針組立体 Download PDFInfo
- Publication number
- WO2007126085A1 WO2007126085A1 PCT/JP2007/059259 JP2007059259W WO2007126085A1 WO 2007126085 A1 WO2007126085 A1 WO 2007126085A1 JP 2007059259 W JP2007059259 W JP 2007059259W WO 2007126085 A1 WO2007126085 A1 WO 2007126085A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- needle
- tip
- hub
- needle assembly
- protection
- Prior art date
Links
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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1581—Right-angle needle-type devices
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
- A61M2005/3249—Means to disalign the needle tip and the distal needle passage of a needle protection sleeve
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3275—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
Definitions
- the present invention relates to a safety needle assembly that protects a needle tip, and more particularly to a safety needle assembly that uses a needle having a curved portion, and more specifically, a Hoover needle that is a puncture needle for a subcutaneously-embedded catheter access port. It relates to an assembly. More particularly, the present invention relates to a Hoover needle assembly having a safety mechanism for preventing a needle stick accident that can cover the tip of the needle when the Hoover needle assembly punctured in the catheter access port is removed.
- a needle that punctures a subcutaneously-embedded catheter access port is provided with a blade surface that does not cause coring during septum piercing of a port, which is not possible with a general injection needle.
- a Hoover needle having a shape perpendicular to the angle is generally used. Among them, the one having a curved part bent 90 ° in the middle of the needle and having a wing parallel to the horizontal direction is used for applications such as continuous administration.
- Patent Document 1 Special Table 2004—510555
- the needle assembly In the safety type needle assembly described above, it is possible to prevent erroneous puncture because it is difficult for the fingertip to come into contact with the needle simply by folding the wing. Therefore, the needle assembly can prevent erroneous puncture by a simple operation.
- the wing needs a sufficient weight to fall under its own weight.
- the wings press on the patient, increasing the patient burden.
- the spread of the wings does not become perpendicular to the direction of gravity, so it is difficult to protect the needle tip with the wing at the same time that the needle assembly pulls out the needle from the living body.
- the needle assembly prevents the wing from returning by the detent portion having a shallow step, it prevents the contact between the human body and the needle due to a light touching force. It is difficult to prevent the exposure of the needle caused by the large force applied from the outside.
- the needle assembly is not a structure that covers the periphery of the tip of the portion of the needle that contacts the living body. Therefore, there is a possibility that the body fluid attached to the needle will come into contact with the human body and scatter, and there is a possibility of infection such as HIV and hepatitis due to violent contact and scatter.
- the present invention provides a safety needle assembly that protects the needle tip, and further provides a safety type needle assembly that has a curved portion with an accidental puncture prevention mechanism, particularly a safety type Hoover needle.
- An assembly is provided for the purpose of preventing needlestick accidents.
- the present invention is a needle assembly comprising a needle having a tip formed at the tip, a hub for holding the proximal end of the needle, and a tip protector,
- the tip protection part has a mechanism in which the needle tip is held
- the tip protection unit moves the tip of the needle to the protection position, the needle tip is held by the mechanism and the needle tip is stored inside the tip protection unit, thereby protecting the tip of the needle. It is characterized by
- a needle assembly is also a needle assembly using a Hoover needle as the needle. Furthermore, a needle having a cutting edge formed at the tip, a hub for holding the proximal end of the needle, and a tip retainer
- a needle tip protection mechanism provided with a protection portion, comprising a restricting portion that regulates a distance between the needle and the hub, the tip protection portion having a mechanism for pinching the needle tip, and the tip protection portion
- the tip of the needle is moved to the protection position, the needle tip is folded by the mechanism and the needle tip is stored inside the tip protection portion, whereby the tip of the needle is protected. It is also the needle point protection mechanism that is used.
- the present invention is a needle assembly as described above, it is useful as a safety needle assembly regardless of the presence or absence of a curved portion of the needle, and in particular, a subcutaneous implantable force table having a curved portion on the needle. It is also useful as a puncture needle for an access port and can be suitably used for a treatment method using a catheter.
- the needle assembly of the present invention protects the cutting edge at the same time as removing the highly safe needle from the living body because the cutting edge does not re-project even when an external force is applied with the needle tip protected. Therefore, it is excellent in safety.
- the needle assembly of the present invention is structured to cover the needle tip, it can prevent blood and body fluid adhering to the needle tip from coming into contact with the human body, thereby preventing secondary medical accidents. It is suitable for.
- FIG. 1 is a perspective view of a first embodiment of the needle assembly according to the present invention after use.
- FIG. 2 is a longitudinal sectional view showing a state after use of the first embodiment of the needle assembly of the present invention.
- FIG. 3 is a perspective view of the needle assembly of FIG. 1 before use.
- FIG. 4 is a cross-sectional view of the needle assembly of FIG. 1 before use.
- FIG. 5 is a perspective view of the needle assembly of FIG. 1 in a state in the middle of transitioning to the state of FIG. 1 from before use.
- FIG. 6 is a cross-sectional view of the needle assembly of FIG. 1 in a state in which the needle assembly is in transition to the state of FIG. 1 before use.
- FIG. 7 is a cross-sectional view showing a state when the tip protector in the needle assembly of FIG. 1 protects the needle tip.
- FIG. 8 is a perspective view of the second embodiment of the needle assembly of the present invention before use.
- FIG. 9 is a perspective view of the third embodiment of the needle assembly of the present invention after use.
- 10] A sectional view of the third embodiment of the needle assembly of the present invention after use.
- FIG. 11 A perspective view of the needle assembly of FIG. 9 before use.
- FIG. 12 A cross-sectional view of the needle assembly of FIG. 9 before use.
- FIG. 13 is a perspective view of a needle and a hub in the needle assembly of FIG.
- FIG. 14 A perspective view of a cover member in the needle assembly of FIG.
- FIG. 15 (a) is a front view of a connecting body in the needle assembly of FIG. (B) The left view of the connection body of (a). (c) The longitudinal cross-sectional view of the connection body of (a).
- FIG. 1 is a perspective view showing a state when the needle tip is stored after using the needle assembly of the present invention.
- FIG. 2 is a longitudinal sectional view of the needle assembly of the present invention in the state shown in FIG.
- the needle assembly 1 is a needle assembly having a needle 2 having a curved portion 21 whose curvature is approximately 90 ° and a hub 3 that holds a proximal end portion of the needle 2.
- the needle assembly 1 includes a needle tip protector 5 that protects the tip of the needle 2, and a restricting portion 6 between the needle tip protector 5 and the hub 3 so as to be fixed to the skin of a living body. 7 is provided.
- the fixing portion 7 is connected to the needle tip protecting portion 5.
- the needle is attached to a hub that is substantially horizontal with respect to the surface on which the living body is placed, and the needle tip is directed downward by bending.
- a single Hoover needle with a blade surface perpendicular to the puncture direction is used as the needle 2.
- the bending of the bending portion is approximately 90 ° in FIG. 1, but is not particularly limited to approximately 90 °.
- the curvature of the curved portion is approximately 90 °.
- the needle tip of the needle 2 after use is shown in FIG.
- the part 22 is placed inside the needle tip protection part 5.
- the needle tip protector 5 is limited in its distance from the hub 3 by the restricting portion 6.
- the needle tip as shown in Fig. 2 can no longer be moved to the tip than when it is stored.
- the needle tip protector 5 has a needle tip surrounding structure and surrounds the needle tip 22 of the needle 2 with play, and the positional relationship between the needle tip protector 5 and the needle tip 22 by the restricting portion 6. Therefore, the needle tip protector 5 cannot be pulled out beyond the needle tip surrounding structure.
- the needle tip 22 when the needle tip 22 is surrounded with play inside the needle tip protector, the outside of the needle tip protector 5 is in contact with the needle tip protector, and the needle and The needle tip 22 is housed inside the needle tip protector 5 due to the flexibility of the Z or the needle contact portion of the needle tip protector.
- the tube 33 is connected to the tube connection hole 34 of the hub 3 so that the lumen of the needle 2 and the tube lumen communicate with each other.
- FIG. 3 is a perspective view showing a state before use of the needle assembly 1 of the present invention
- FIG. 4 is a longitudinal sectional view of the needle assembly 1 of the present invention in the state of FIG.
- the needle assembly 1 before use is in a state where the restricting portion 6 is folded, and the hub 3 and the fixing portion 7 are connected to the engaging portion 32 of the hub 3 and the connecting portion of the fixing portion 7. 71 is connected.
- FIG. 3 is a perspective view showing a state before use of the needle assembly 1 of the present invention
- FIG. 4 is a longitudinal sectional view of the needle assembly 1 of the present invention in the state of FIG.
- connection portion 71 is provided with an engagement receiving portion 72 that is an opening, and is engaged with the engagement protrusion 35 of the engagement portion 32 so that the hub 3 and the fixing portion 7 are connected.
- the needle 2 passes from the first opening 51 of the needle tip protecting part 5 through the needle tip protecting part 5, comes out of the second opening 52, and further protrudes from the fixing part 7 through the needle passage 73 of the fixing part 7. It has become. In this pre-use state, the needle can be inserted into the living tissue with the wings 4 sandwiched, but a living tissue can be formed while holding the gripping part instead of the wings. You may insert it into
- the needle assembly 1 is separated from the intermediate state shown in FIGS. Become.
- the needle 2 passes through the first opening 51 located on the needle proximal end side and the second opening 52 located on the needle distal end side, and further penetrates the needle passage 73, so that the needle tip protecting portion 5 and the fixed portion are fixed.
- Part 7 is relative Move toward the needle tip. 5 and 6, the needle assembly 1 is provided with hinge portions 61 to 63 in the restricting portion 6 and a hinge portion 53 between the needle tip protecting portion 5 and the fixing portion 7.
- the presence or quantity of the hinge part is not particularly limited and can be slid.
- Bendable members such as linear members such as string members that may have a flexible extension member or a hinge portion that can rotate about a hinge with a constricted structure or a hinge with a rotating pin Can also be used. Since the restricting portion 6 shown in FIG. 6 has a hinge portion, the restricting portion 6 can be accommodated by being compactly folded, and since a force or a material that does not extend in the length direction can be used for the restricting portion, The function to limit the distance between the tip protection part and the hub with little change in the length direction can be fully exhibited. Further, as shown in FIG. 5, the needle assembly 1 includes two restricting portions 6 between the hub front surface 36 and the needle tip protecting portion 5.
- the number of the restricting portions 6 is not particularly limited. However, in order to stably connect the hub and the fixed portion, a structure in which the two engaging portions 32 are sandwiched from both sides of the connecting portion 71 is used. If it is adopted, it is possible to place it on both sides of the connecting part 71 in a folded state in order to save space, so it is preferable to provide two limiting parts 6.
- the needle tip protecting part 5 and the fixing part 7 are relatively moved in the needle tip direction, and the fixing part 7 is separated from the needle beyond the needle tip.
- the tip is stored inside the needle tip protector.
- the needle 2 is housed in the needle tip protecting portion 5 by the elasticity of the needle as shown in FIG.
- the mechanism for storing the needle tip in the needle tip protector is considered as follows. While the tip protector 5 is restricted in its positional relationship with the needle tip 22 by the restricting portion 6 (not shown in FIG. 7), the needle 2 is positioned inside the fulcrum of the tip protector 5 and the needle tip return preventing portion 5. 4 is in contact with the outside.
- the needle tip protection part 5 is further moved from the state shown in FIG. 7 by applying a force M toward the tip of the needle 2, the needle tip 22 is moved relative to the fulcrum part 53.
- the force of the rotation direction N is given. Since the needle 2 has elasticity, the vicinity of the needle tip is caught inside the needle tip protecting portion 5. As a result of this stagnation, the length component L in the direction of the tip of the needle 2 contracts, and the tip protection part moves relative to the tip side beyond the needle tip 22, and the needle tip 22 becomes the tip protection part 5. It will be stored inside. Needle point return Since the prevention part 54 has a length in the length direction of the needle, the needle tip 22 is confined inside the tip protection part 5, and the tip protection part 5 does not have a structure to bend the needle inside. Needle tip 22 never goes out.
- the needle assembly 1 of the present invention has an end portion of the restricting portion 6 connected to the tip protection portion 5 and is not particularly limited. It is preferable that the portion where the restricting portion 6 is connected to the tip protection portion 5 in the direction V perpendicular to the direction is connected at the same position as the fulcrum portion or at the tip protection position opposite to the needle with respect to the fulcrum portion.
- a force that can be held in the hand and moved the needle tip protector in the direction of the needle tip If it has a part, it is possible to easily protect the tip of the needle by pulling up the needle hub while pressing the fixed part toward the ground plane.
- the tip protection part 5' is configured such that the fulcrum part 53 and the needle tip return prevention part 54 may be constructed as the same member.
- the inner member including the portion 54 may be configured to be fitted inside the outer member that forms the outer side of the tip protecting portion 5 ′.
- an inner member 503 having a fulcrum portion 53 and a needle point return prevention portion 54 is provided inside an outer member 502 having a slit 501 constituting the outer side of the tip protecting portion 5 ′. It can also be set as the structure provided. In the case of such a structure, for example, in the state shown in FIG.
- the lateral force inner member 504 is changed to the outer member 503 after the needle shaft is disposed inside the tip protector 5 from the slit.
- the tip protection part 5 ′ can protect the tip of the needle 2 ′.
- the tip protection part is composed of two members, and the needle shaft is arranged at a position passing through the tip protection member, the fulcrum part 53 and the needle tip return prevention Since the needle assembly of the present invention does not need to penetrate the tip protection member after bonding the needle and the hub, the inner member having the portion 54 is fitted into the outer member. Bonding work between the hub and the hub is easy and the workability is excellent.
- FIG. 9 shows a third embodiment of the needle assembly according to the present invention, and is a perspective view showing a state when the needle tip is stored after the needle assembly 1001 is used.
- FIG. 10 is a longitudinal sectional view of the needle assembly of the present invention in the state shown in FIG. As shown in Fig. 10, the needle assembly
- the solid body 1001 includes a needle 1002 having a curved portion 1021 that is curved approximately 90 °, and a hub 1003 that holds the proximal end portion of the needle 1002.
- the needle assembly 1001 includes a needle tip protection unit 1005 that protects the tip of the needle 1002, and a restriction unit 1006 that is a leg between the needle tip protection unit 1005 and the hub 1003. It has a fixed part 1007 to be fixed.
- the canopy B material 1008 force S is installed so that the needle assembly 1001 is covered with the knob 1003 provided with gold +1002.
- the cover member 1008 includes a handle portion 1009 at an upper portion thereof via a joint portion 1010 that functions as a joint.
- the handle 1009 is provided in the needle assembly so as to be connected to the hub 1003 of the needle 1002 having the curved portion 1021 that is curved approximately 90 °, but the handle is attached to the hub of a general needle that is not provided with the curved portion. Can be provided.
- the hub is lifted by pulling up the handle portion when changing the needle assembly from the puncture state to the needle withdrawal state. By lifting the hub, the needle can be easily pulled out from the living body.
- the fixing portion 1007 is connected to the needle tip protecting portion 1005 via a hinge portion 1077.
- the needle 1002 is mounted on a hub 1003 that is substantially horizontal to the surface on which the living body is installed, and the needle tip is directed downward due to the curvature.
- a Hoover needle having a shape in which the blade surface is perpendicular to the puncture direction is used as the needle 1022, but other medical needles can also be used.
- the bending of the bending portion is approximately 90 ° in FIG. 10, but is not particularly limited to approximately 90 °.
- the needle tube has a portion extending in the horizontal direction with the installation surface. Therefore, since the needle tube can be easily arranged, it is preferable that the bending portion bend approximately 90 °.
- the needle tip portion 1022 of the needle 1002 is housed inside the needle tip protecting portion 1005 in a state after use.
- the needle tip protecting portion 1005 is configured so that it cannot move to the tip side from the position where the needle tip is housed by the restricting portion 1006.
- the needle tip protecting part 1005 includes an inner member 1503 and an outer member 1502, and has a needle tip surrounding structure as shown in FIG.
- the needle tip protection part 1005 surrounds the needle tip part 1022, and the positional relationship between the needle tip protection part 1005 and the needle tip part 1022 is restricted by the restriction part 1006. The needle tip 1022 cannot be pulled out beyond the needle tip protector 5.
- the needle tip 1022 is housed inside the needle tip protector 1005 due to the flexibility of the needle and / or the needle contact portion of the needle tip protector as in the embodiment of FIG.
- a tube (not shown) is inserted into and connected to the tube connection hole 1034 of the hub 1003, and the lumen of the needle 1002 and the tube lumen communicate with each other.
- FIG. 11 is a perspective view showing a state before use of the needle assembly 1001 of the present invention
- FIG. 12 is a perspective view of the needle assembly of the present invention in the state of FIG. FIG.
- the needle assembly 1001 before use is in a state in which the restricting portion 1 006 is folded, as shown in FIG. 11, with the hub 1003 and the fixing portion 1007 and force S, and the engaging portion 1032 and the fixing portion 1007 of the hub 1003. It is in a state of being connected to the connection unit 1071.
- the fixing portion 1007 includes a locking portion 1072 in the connecting portion 1071, and the engaging protrusion 1035 of the engaging portion 1032 and the locking portion 1072 are engaged to fix the hub 1003. Part 1007 is connected.
- the needle 1002 passes from the first opening 1051 of the needle tip protection portion 1005 through the needle tip protection portion 1005, passes through the second opening portion 1052, and further passes through the needle passage 1073 of the fixing portion 1007. It passes through the fixed part 1007.
- the needle 1002 is held by holding the gripping portions 1081 on both sides of the force bar member 1008 of the needle assembly 1001 with fingers.
- the medical solution can be injected into the living body or the like through a tube (not shown) connected to the tube connection hole 1034 and the lumen of the needle 1002.
- the tip of the needle is protected, for example, as follows. be able to.
- the wings 1076 and 1076 'of the fixing part 1007 installed on the living body surface are pressed downward with the fingers of one hand.
- the grip part 1081 between the fingers of the other hand the engagement between the fixed part 1007 and the hub 10 03 is released and separated, and the state after use as shown in FIGS. 9 and 10 ( The needle tip is protected.
- the grip portion 1081 may be provided with a protrusion so as to be easily fixed with a finger or as a slip stopper.
- the wing is folded and Even if it is punctured with the gripping part in between, it is good.
- the needle assembly 1001 has a claw portion 1092 of the fastener 1091 provided in the handle portion 1009 in the hole 1075 of the fastening portion 1074 provided in the fixing portion 1007. It is inserted and engaged. By this engagement, the handle portion 1009 is attached to the cover member as shown in FIG. In the state after use, when the punctured needle assembly 1001 is pulled out from the living body or the like, the handle portion 1009 is lifted as shown in FIG. .
- the handle portion 1009 has a proximal end attached to the cover member 1008 via the joint portion 1010 and is connected to the hub 1003.
- the needle 1002 is lifted, and the inserted living body isotropic needle 1002 is pulled out.
- the proximal end X force needle 1002 of the handle is substantially immediately above the vertical portion. Since the base end of the handle part is almost directly above the vertical part of the needle 1002, the main body part that covers the needle base end part and fixes the needle has the base end of the handle part as a starting point and the pulling force is increased.
- the needle 1002 can lift up without swinging in the distal or proximal direction.
- the needle 1002 is slightly above the tip side in the horizontal direction from the vertical part because the tip of the needle can be easily stored in the needle tip protector.
- the needle knob and the cover member form a main body that supports the needle, and the handle is connected to the force needle hub in which the handle is joined to the top of the cover member.
- the hand part may be provided directly on the main body part or on the needle part.
- the configuration of the embodiment shown in Fig. 9 is not particularly limited, and for example, the following configuration can be adopted.
- the needle knives and bu have a pair of engaging projections on the lower side and a pair of convex portions 1036 and 1036 ′ on both side surfaces.
- the cover member attached to cover the needle hub is provided with a pair of holes 1082 and 1082 'force S on both sides, respectively, so that the cover member is attached to the needle hub At the time, the convex portion is adapted to fit into the hole. Further, as shown in FIG.
- the fixed part, the tip protection part, and the restriction part are formed with a continuous body 2001, in which the fixation part, the tip protection part, and the restriction part are connected, and the tip protection part of the restriction part is A pair of protrusions 20 on the other end of the provided end
- a flat mounting portion 2002 provided with 21 is provided. Since the projection 2021 provided on the mounting portion 2002 is provided with the same width as the width between the convex portions 1036 and 1036 ′ provided on the same side surface of the hub, the needle is the first tip of the tip protection portion.
- the attachment portion is attached to the upper side of the needle screw and the hub so that the pair of protrusions are fitted between the protrusions in a state of passing through the opening and the second opening.
- the third embodiment of the needle assembly of the present invention can be easily assembled with force S by attaching the cover member to the needle nose and boss from above the mounting portion.
- the use of is not an essential component of the present invention with respect to needle tip protection.
- a hinge part is provided between each part in the order of the fixing part, the tip protection part, the restriction part, and the mounting part, and the connecting body is in contact with each other part that makes P contact.
- the angle can be set to an arbitrary angle, it is easy to assemble the needle assembly, and since the deformation from the state before use to the state after use can be performed smoothly, it is preferable because protection of the needle tip is easy. .
- these fittings may be bonded.
- the tip protection part is composed of two members, and includes an outer member 1 502 and an inner member 1503.
- the inner member 1503 has a side opening 1531 on one side surface. It can be used as an inner member having a needle tip surrounding structure similar to the embodiment shown in FIG.
- the side opening 1531 has a second opening end 1533 at the boundary between the right side surface 1534 and the bottom surface, and has a first opening end 1532 at the boundary between the right side surface 1534 and the back surface 1535. As shown in FIG.
- the side opening 1531 has a shape corresponding to the curved portion of the needle 1002, and the portion extending in the vertical direction of the needle 1002 passes through the second opening end 1533 and the horizontal direction of the needle 1002 The portion extending in the direction is configured to pass through the first opening end 1532 so that the curved portion is stored inside the inner member through the side opening.
- the shape of the inner member of the tip protection part is used, so that the attachment part of the continuous body is attached to the upper part of the needle knob, and the engagement protrusion of the needle hub is attached to the fixing part. Engage with the engagement receiving part to make the pre-use state as shown in FIG.
- the restricting portion in the embodiment example of FIG. 9 is the same as that of the embodiment example of FIG. 1, and can sufficiently exert the function for restricting the distance between the tip protecting portion and the hub, and the needle tip protecting portion.
- the restricting portion may be a force ladder shown as a pair of legs or a plate as long as it can exert its function.
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- Health & Medical Sciences (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
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/225,830 US8496626B2 (en) | 2006-04-28 | 2007-04-27 | Safety needle assembly |
JP2008513312A JP4853516B2 (ja) | 2006-04-28 | 2007-04-27 | 安全針組立体 |
EP07742694.8A EP2016964B1 (en) | 2006-04-28 | 2007-04-27 | Safety needle assembly |
MX2008013742A MX2008013742A (es) | 2006-04-28 | 2007-04-27 | Ensamble de aguja de seguridad. |
ES07742694T ES2899444T3 (es) | 2006-04-28 | 2007-04-27 | Conjunto de aguja de seguridad |
CN2007800148505A CN101432035B (zh) | 2006-04-28 | 2007-04-27 | 安全针组件 |
BRPI0710395A BRPI0710395B8 (pt) | 2006-04-28 | 2007-04-27 | conjunto de agulha de segurança e mecanismo da agulha |
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US (1) | US8496626B2 (ja) |
EP (1) | EP2016964B1 (ja) |
JP (3) | JP4853516B2 (ja) |
CN (1) | CN101432035B (ja) |
BR (1) | BRPI0710395B8 (ja) |
ES (1) | ES2899444T3 (ja) |
MX (1) | MX2008013742A (ja) |
WO (1) | WO2007126085A1 (ja) |
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WO2013098986A1 (ja) * | 2011-12-28 | 2013-07-04 | 川澄化学工業株式会社 | 医療用針安全装置 |
JP2013138853A (ja) * | 2011-12-28 | 2013-07-18 | Kawasumi Lab Inc | 医療用針安全装置 |
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- 2007-04-27 WO PCT/JP2007/059259 patent/WO2007126085A1/ja active Application Filing
- 2007-04-27 MX MX2008013742A patent/MX2008013742A/es active IP Right Grant
- 2007-04-27 BR BRPI0710395A patent/BRPI0710395B8/pt active IP Right Grant
- 2007-04-27 EP EP07742694.8A patent/EP2016964B1/en active Active
- 2007-04-27 US US12/225,830 patent/US8496626B2/en active Active
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102215999A (zh) * | 2008-11-11 | 2011-10-12 | 诺沃—诺迪斯克有限公司 | 弯曲的注射针 |
JP2011143001A (ja) * | 2010-01-13 | 2011-07-28 | Kawasumi Lab Inc | 医療用針 |
WO2013098986A1 (ja) * | 2011-12-28 | 2013-07-04 | 川澄化学工業株式会社 | 医療用針安全装置 |
JP2013138853A (ja) * | 2011-12-28 | 2013-07-18 | Kawasumi Lab Inc | 医療用針安全装置 |
WO2015042161A1 (en) * | 2013-09-18 | 2015-03-26 | David Stroup | Medical infusion device and methods of use |
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Also Published As
Publication number | Publication date |
---|---|
EP2016964A1 (en) | 2009-01-21 |
US20090163875A1 (en) | 2009-06-25 |
JP5099240B2 (ja) | 2012-12-19 |
JPWO2007126085A1 (ja) | 2009-09-10 |
BRPI0710395A2 (pt) | 2015-05-05 |
JP2011115615A (ja) | 2011-06-16 |
US8496626B2 (en) | 2013-07-30 |
EP2016964B1 (en) | 2021-10-06 |
ES2899444T3 (es) | 2022-03-11 |
BRPI0710395B8 (pt) | 2021-06-22 |
CN101432035B (zh) | 2013-01-30 |
JP5365680B2 (ja) | 2013-12-11 |
BRPI0710395B1 (pt) | 2018-11-13 |
CN101432035A (zh) | 2009-05-13 |
MX2008013742A (es) | 2008-11-14 |
EP2016964A4 (en) | 2014-06-11 |
JP2012016629A (ja) | 2012-01-26 |
JP4853516B2 (ja) | 2012-01-11 |
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