JPH0249667A - Protector for needle tube - Google Patents

Abstract

PURPOSE:To prevent a protector from rolling on a table even when the protector is detached in use to be placed on the table and to also prevent the possibility of the missing thereof by constituting the protector so that a pair of half sheath bodies are opened in such a state that the side edges thereof are connected and closed mutually to receive a needle tube assembly so that the outer peripheries of the inlet parts thereof are engaged with the inner surface of the cylindrical part formed so as to surround the connection part with the hub of the needle tube assembly provided to the leading end surface of a syringe. CONSTITUTION:A pair of half sheath bodies 1, 2 becoming an elongated hollow shape opened at one end thereof capable of receiving the needle tube part of the needle tube assembly B of an injection device A in a closed state are formed. A pair of the half sheath bodies 1, 2 are opened in such a state that the side edges 3 thereof are connected. When said sheath bodies 1, 2 are mutually closed to receive the needle tube assembly B, the outer peripheries of the inlet parts of both bodies are engaged with the inner surface of a cylindrical part E formed so as to surround the connection part B with the hub of the needle tube assembly provided to the leading end surface of a syringe C. When the injection device A is used, a protector is detached in the axial direction. Since the detached protector is opened into two parts in a connected state, said protector is prevented from rolling on a table and there is no possibility of falling and loss.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a needle tube protector that facilitates the storage operation when storing the needle tube of a needle tube assembly after use.

[Prior Art] The inlet opening of a needle tube protector is relatively small, and there is often not enough room to protect the needle tube after use in the injection device. When you put the protector in the other hand, if there is a misalignment, the tip of the needle may sting the finger holding the protector.

This kind of thing must never happen to prevent infections such as AIDS and hepatitis.

JP-A-58-89275 discloses a needle tube protector that is easy to store when storing the needle tube of an injection device after use. According to this document, a notch with a width slightly larger than the needle diameter is provided on one side of the open end of the housing, and the deep end of the notch is semicircular. When the needle tip passes through the notch and comes into contact with the housing wall facing the notch, the needle tip can be moved in the storage direction.

[Problems to be Solved by the Invention] However, since such a U-shaped notch is large enough to allow only the needle tip to pass through, there is a risk that a new discrepancy may occur when the needle tip is passed through the notch.

Furthermore, if the needle diameter is large, the incision must also be made large, and the needle guide section cannot be used in common.

On the other hand, conventional needle tube protectors have a cylindrical or tapered cylindrical shape, and may roll on a table and fall to the floor.

An object of the present invention is to provide a needle tube protector that can house and protect the needle tube of an injection device after use in a sandwich manner.

SUMMARY OF THE INVENTION An object of the present invention is to provide a needle tube protector that does not roll when placed on a removal table during use and is less likely to be lost.

[Means for Solving the Problems] The needle tube protector of the first invention of the present application is shown in FIGS.
As shown in (d), a pair of half-sheaths 1.2 are formed into an elongated hollow shape with at least one end open and capable of accommodating at least the needle tube portion of the needle tube assembly B of the injection device A when closed. , and when the pair of half-sheaths 1 and 2 are opened in half with the side edges 3 connected and closed to accommodate the needle tube assembly B, the outer circumference 4 of the inlet portion is aligned with the distal end surface of the syringe C. It is characterized by a structure that can be fitted into the inner surface of a cylindrical portion E formed surrounding a connection portion with a hub of a needle tube assembly provided in the cylindrical portion E.

This protector P is provided as a product by closing the pair of half-sheath bodies 1 and 2 so as to cover the needle tube, and fitting the outer periphery of the inlet part to the inner surface of the cylindrical part. When using injection device A, remove the protector in the axial direction.The removed protector opens in two in the connected state, so it will not roll on the table, so there is no risk of it falling or being lost. Then, the pair of half-sheath bodies 1 and 2 are closed so as to cover the needle tube, and the outer periphery of the inlet part is fitted into the inner surface of the cylindrical part, and then discarded.

Further, as shown in FIG. 3, the needle tube protector of the second invention of the present application has at least one end that can accommodate at least the needle tube portion of the needle tube assembly B of the injection device A open and the other end closed when the needle tube assembly B of the injection device A is closed. It is formed into a pair of half-sheath bodies 1 and 2 having an elongated hollow shape, and the pair of half-sheath bodies 1 and 2 are opened in half with their side edges 3 connected, and closed together to form a needle tube assembly B. When the needle tube assembly B is accommodated, the closed state is maintained by a pair of detachable engaging portions 5.6 attached to the pair of closing edges, and the inner periphery 7 of the inlet portion is It is characterized by a structure that can be fitted into the hub h.

This protector P closes the pair of half-sheath bodies 1 and 2 so as to cover the needle tube. Then, the closed state is maintained by the pair of engaging parts. and.

The product is provided by fitting the inner periphery of the inlet of the protector into the hub. When using the injection device A, the protector is removed in the axial direction and then opened in half. Therefore, the protector does not roll on the table, so there is no risk of it falling or being lost. After use, do the same as when providing the product as described above.

If the pair of half-sheath bodies 1 and 2 are closed so as to cover the needle tube, and the inner periphery of the inlet part is fitted to the hub, the pair of half-sheath bodies 1 and 2
can be kept closed and disposed of safely.

Further, the needle tube protector of the third invention of the present application is a needle tube protector that houses and protects the winged needle tube assembly B, as shown in FIG. 4 or FIG. A template 10 having a concave portion 12 to be obtained, and a lid plate 11 that overlaps the upper surface of the template 10 with approximately the same size are integrally molded in plastic with the left and right sides open, and the concave portion 12 of the template 10 is , has a planar shape roughly approximating the winged needle tube assembly B, which can house the winged needle tube assembly B with the wings h2 horizontal, and when the cover plate 11 is closed, the cover plate 1
1 so that at least a portion of the winged needle tube assembly B can be pressed into a housing state; A pair of locking tools 13 that engage each other as shown in FIG.
, 14 are provided.

This protector P accommodates the winged needle tube assembly B in the recess 12 of the template 10, closes the lid plate 11, and is maintained in a closed state by the pair of engaging portions to provide a product. When in use, if a mock member is inserted between the template 10 and the lid plate 11 to disengage the pair of engaging parts, the lid plate 11 will be maintained in an open state, and the lid plate 11 will be placed on the table. If you keep it in place, there is no risk of it falling and getting lost.After use, please place the recess 1 of the template lO in the same way as when the product was provided.
When the winged needle tube assembly B is housed in 2 and the lid plate 11 is closed, the pair of engaging portions 13 and 14 engage, so that the lid 11 can be maintained in a closed state and safely disposed of.

[Example] Figures 1(a) to (d) show a first example of the needle tube protector of the first invention of the present application.

This protector P is a plastic molded product, and is molded in an open state in which a pair of half-sheaths 1 and 2 are connected at a side edge 3, and opens when you release your hand after closing the half-sheaths 1 and 2. restore to the original state. When the half-sheath body 1.2 is closed, it becomes an elongated hollow shape with one end open and the other end closed, and the injection device A
In order to accommodate the entire needle tube assembly B, the inner diameter of the inlet portion is larger than the hub h, and the length of the accommodation space is larger than the distance from the distal end surface of the syringe C to the distal end of the needle tube n. On the other hand, the distal end surface of the syringe C has a hub connection portion having a syringe passage and a cylindrical portion E formed surrounding the hub connection portion. The cylindrical portion E has an inner diameter dimension so as to be able to fit into the outer periphery 4 of the inlet portion when the half-sheath body 1.2 is fitted into a hollow shape. A ring groove F is formed at the deep end of the inner peripheral surface of the cylindrical portion E, into which the outer periphery 4 of the entrance portion of the half-sheath bodies 1 and 2 is fitted.

As shown in FIG. 1(C), when viewed from the entrance direction with the half-sheaths 1 and 2 closed together, the portion of the thick entrance portion outer periphery 4 corresponding to the connecting portion 3 has a smooth surface 8. As shown in FIG. 1(d), when the half-sheath body 1.2 is opened, the smooth surface 8 meets the two folds and acts as a stopper to prevent the half-sheath from opening too much.

Thus, the half-sheath bodies 1 and 2 are positioned on the sides of the needle tube assembly B, the half-sheath bodies 1 and 2 are closed, and the needle tube n is housed therein.Then, the half-sheath bodies 1 and 2 are moved in the direction of the syringe C, and the hub h is also moved. The outer periphery 4 of the inlet portion is fitted into the cylindrical portion E, and the product is provided. When in use, pull the needle tube protector P slightly toward the needle tip.
Hemisheath l.

The needle tube protector P can be removed by separating the outer periphery 4 of the inlet portion of the syringe C from the ring groove F on the inner circumferential surface of the cylindrical portion E of the syringe C, and then sliding the inner circumferential surface of the cylindrical portion E. Then, the removed needle tube protector P is divided into half-sheath bodies 1 and 2.
Since the needle naturally returns to its open state, there is no need to open the half sheaths 1 and 2 after use, and the needle can be protected using the same procedure as when the product was provided.

FIG. 2 shows a second embodiment of the needle tube protector of the first invention of the present application.

This protector P includes an over-opening prevention stopper 9a,
9b, and the half rings 1 and 2 are formed in an open state. Since there is no difference in other configurations from the first embodiment, the same reference numerals will be used and the explanation will be omitted.

FIG. 3 shows an embodiment of the needle tube protector of the second invention of the present application.

This protector P is a plastic molded product, and is molded into a state in which a pair of half-sheath bodies 1 and 2 are connected at a side edge 3. When half-sheath bodies 1 and 2 are closed.

It has an elongated hollow shape with one end open and the other end closed. And half sheath body 1. ? A pair of male and female engaging portions 5.6 which can be freely engaged and detached are attached to the closing edges of the half-sheaths 1 and 2, so that the half-sheath bodies 1 and 2 can be self-maintained in the closed state. When the half-sheath bodies 1 and 2 are closed together, the inner periphery 7 of the inlet portion is formed in a size that can fit with the outer periphery of the hub h. Therefore, when the semicircles 1 and 2 are positioned on the side of the needle tube n and closed so as to cover the needle tube n, the engaging portions 5.6 will fit together and will not open even if you release your hand. , move in the direction of the syringe C without letting go of the hand, fit the inlet inner circumference 7 into the hub h, and the product is provided. When in use, the needle tube protector P can be removed by simply pulling it toward the needle tip. Leave it open after removal, and protect it after use using the same procedure as when the product was provided.

FIG. 4 shows a first embodiment of the needle tube protector of the third invention of the present application.

The protector of this embodiment is a protector for storing and protecting the winged needle tube assembly B. The winged needle tube assembly B has a needle tube n having a sharp tip, a needle tube support portion h1 that supports the proximal end of the needle tube n, and has 9i (h2) on the needle tube support portion ht, and a hub h having a tube connection portion h3 extending in the proximal direction of the needle tube support portion hl;
and a medical tube T fitted into the tube connection part h3, but it may also be a winged needle tube assembly assembled into a syringe as in the first and second inventions.

This protector P has a thick plate-like template 10 having a recess 12 that can accommodate the winged needle tube assembly B, and a thin plate-shaped cover plate 11 that overlaps the upper surface of the template 10 with approximately the same size on the left and right sides. It is molded in plastic in an open position.

The recess 12 of the template lO is a recess 12 that can store the winged needle tube assembly B with lh2 horizontal and approximates the bone assembly B, and after storing the winged needle tube assembly B. Lid plate 1
The winged needle tube assembly B is formed at a depth such that the winged needle tube assembly B can be pressed by the cover plate 11 when the winged needle tube assembly B is closed. The recess 12 is configured to accommodate the winged needle tube assembly B such that the center line of the winged needle tube assembly B is parallel to the lid plate 11.

Furthermore, a locking recess 13 and a locking protrusion 14 are provided on the template 10 and the lid plate 11 as a pair of locking devices that engage with each other so as to maintain the lid plate 11 in a closed state. The locking recess 13 and the locking protrusion 14 are adapted to engage with each other somewhat strongly.

FIG. 5 shows a second embodiment of the needle tube protector according to the third invention of the present application.

This protector is also a protector for storing and protecting the winged needle tube assembly B, and is made of a thick plate-like template 10 and a thin plate-like cover plate 11 that are integrally molded in plastic in a state that is opened left and right.

The recess 12 is a recess 12 similar to the winged needle tube assembly B that can store the winged needle tube assembly B with ih2 horizontal, and after storing the winged needle tube assembly B, close the lid plate 11. The depth is such that the winged needle tube assembly B can be pressed by the cover plate 11 when the winged needle tube assembly B is pressed.

The recess 12 is configured to accommodate the winged needle tube assembly B such that the center line of the winged needle tube assembly B is orthogonal to the lid plate 11 . The cover plate 11 has a slit 15 through which the tube T passes. Furthermore, a locking recess 13 and a locking protrusion 14 are provided on the template lO and the lid plate 11, which engage with each other rather strongly.

[Effects of the Invention] As described above, the needle tube protector of the present invention and the second invention can be removed from the injection device by sliding it toward the tip of the needle tube when in use, and after use, the pair of half-sheaths can be removed. The needle tube can be stored by placing the needle tube in between and closing it, and it can be moved toward the syringe and disposed of by fitting into the cylindrical part or hub on the tip of the syringe. Therefore, even if the needle diameter is different, it can be used in common regardless of the needle diameter as long as it can fit into the needle tube length and hub.Furthermore, it has a structure that guides the needle tube and stores and protects it. Therefore, even if the needle diameters are different, they can be used in common regardless of the difference in needle diameter as long as the needle length and the hub can be fitted.

In addition, when using the needle tube protector of the third invention of the present application, the winged needle tube assembly can be removed by simply opening the lid plate, and after use, the winged needle tube assembly is housed in the recess of the template and the lid is closed. When the plate is closed, the lid plate remains closed and can be easily and safely disposed of.

As described above, the needle tube protectors of the first, second, and third inventions do not require manual operation that may cause a discrepancy between the needle tube and the protector, as in the past, and therefore the protector is held at the needle tip. This eliminates the risk of pricking one's finger, making it suitable for preventing infections such as AIDS and hepatitis.In addition, it can be removed from the protected state, the pair of half-sheaths can be opened, and placed on a table, so there is no risk of it rolling. Furthermore, there is no chance of the halves becoming separate and one being lost.

[Brief explanation of the drawing]

1(a) to 1(d) relate to the needle tube protector of the first invention of the present application, FIG. 1(a) is a perspective view when protecting the needle tube at the time of product provision and after use, and FIG. 1(b) 1(c) is a view taken along the Ic arrow in FIG. 1(a), and FIG. 1(d) is a view taken along the Id arrow in FIG. 1(a). FIG. 2 is a perspective view of the needle tube protector of the first invention of the present application when protecting the needle tube after use. FIG. 3 is a perspective view of the needle tube protector of the second invention of the present application when protecting the needle tube after use. FIG. 4 is a perspective view of the first embodiment of the needle tube protector of the third invention of the present application when protecting the needle tube after use. FIG. 5 is a perspective view of the second embodiment of the needle tube protector of the third invention of the present application, when protecting the needle tube after use. P...Φ Needle tube protector A...Fist injection device, B...Needle tube assembly, C...Syringe, D...Hub connection part, E Kenjinkai cylindrical part, 1.2・轡-half Sheath body, 3...Side edge, 4...Outer periphery of the entrance part, 5.6...Engagement part, 7...Inner periphery of the entrance part, io book/mold plate, 11...Lid plate. 12... recess, 13.9 locking recess as a locking tool, 14...-locking protrusion as a locking tool, n...e needle tube, )1 a @ hub, hl...-needle tube Support part h211...wing, h3...O tube connection part, T...medical tube,

Claims (4)

[Claims] (1) Formed into a pair of half-sheathed bodies that have an elongated hollow shape with at least one open end capable of accommodating at least the needle tube portion of the needle tube assembly of the injection device when closed together, and
When the pair of half-sheaths open in half with their side edges connected and close together to accommodate the needle tube assembly, the outer periphery of the inlet portion is connected to the hub of the needle tube assembly provided on the distal end surface of the syringe. A protector for a needle tube, characterized in that the protector is configured to fit into the inner surface of a cylindrical portion formed surrounding a connecting portion of the needle tube. (2) The needle tube protector according to claim 1, wherein the pair of half-sheaths are formed in an open state and have the ability to open back. (3) formed into a pair of half-sheathed bodies that, when closed together, have an elongated hollow shape with at least one open end capable of accommodating at least the needle tube portion of the needle tube assembly of the injection device, and
When the pair of half-sheaths open in half with their side edges connected and close together to accommodate the needle tube assembly, a pair of detachable engagement members attached to the pair of closed edges A protector for a needle tube, characterized in that the closed state is maintained by a portion, and the inner periphery of the inlet portion is configured to fit into a hub of a needle tube assembly. (4) A needle tube protector that houses and protects a winged needle tube assembly, which includes a template having a recess that can accommodate the winged needle tube assembly, and a lid plate that overlaps the top surface of the template with approximately the same size. and are integrally molded in a state where they are open from side to side, and the concave portion of the template has a planar shape that roughly approximates the winged needle tube assembly that can store the winged needle tube assembly with the wings horizontal, and the lid plate is formed so as to be in a housed state in which at least a portion of the winged needle tube assembly can be pressed by the lid plate when the lid plate is closed; 1. A needle tube protector, characterized in that a pair of locking devices are provided that engage with each other so as to maintain the needle tube in a closed state.