JP4750146B2 - Removal method of needle unit and medical waste container - Google Patents

Description

  The present invention relates to a method for removing a needle unit and a medical waste container.

Conventionally, for example, a pen-type syringe for a patient to inject insulin or growth hormone by himself (self-injection) has been proposed (see Patent Document 1).
Until the patient is able to self-inject, the nurse uses the pen-type syringe to teach the patient how to inject. In such a case, after performing the injection, a nurse replaces the needle unit of the pen-type syringe for each injection from the viewpoint of hygiene. The used needle unit is discarded in a medical waste container (see Patent Document 2).
JP-T-2006-519078 Registered design number 1166202

However, during the replacement of the needle unit of the pen-type syringe, a medical accident has occurred, such as a needle tip sticking into a nurse and causing a hospital infection.
On the other hand, in order to avoid the medical accident, a trumpet type replacement device that covers a nurse's hand is also used, but it is large and bulky, and forgets to bring the replacement device. It is complicated because there is a fear.

  Accordingly, an object of the present invention is to provide a needle unit removal method and a medical waste container that can safely remove a needle unit from a pen-type syringe without using a dedicated instrument.

  In order to achieve the above-mentioned object, the medical waste container of the present invention has a needle unit having a needle and a needle housing surrounding a part of the needle, which is attached to and detached from the main body case by a screw, and a patient administers a medical solution by himself A method for removing the needle unit from the main body case of a pen-type syringe suitable for use in a needle case capable of storing the needle unit in a bottomed removal recess formed in a medical waste container. A step of inserting a small-diameter portion and placing the needle case in an upright state in the removal recess in a state where the opening of the needle case is open upward, and the needle unit is screwed into the main body case A step of pushing the pen-type syringe into the needle case with the needle of the pen-type syringe facing down, and fitting the needle case into a needle housing of a needle unit; A step of pulling the mold syringe upward and pulling the needle case from the detaching recess in a state where the needle case is fitted to the needle unit; and the needle unit screwed into the main body case with the needle case The step of detaching the needle unit from the main body case while maintaining the state where the needle unit is fitted to the needle case by rotating a plurality of times, and the needle unit together with the needle case after the detachment. And a process of throwing it into a disposal container.

According to the present invention, the needle case is inserted into the removal recess formed in the medical waste container, the pen case is pushed into the needle case, and the needle case is fitted into the needle housing of the needle unit. The needle housing can be replaced while preventing an accident such as a needle sticking into the nurse.
In addition, it is convenient because it is not necessary to carry an instrument for removing the needle unit separately.

  In the present invention, a disposal opening into which the needle case can be inserted and a bottomed removal recess for erecting the needle case are formed in the lid, and the bottom of the recess is provided in the upright position. It is preferable that the lower end of the needle case is supported.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 8 show a first embodiment.
Pen syringe type:
Prior to describing the medical waste container of the present invention, first, a pen-type injector for use in self-injection will be described.

As shown in FIG. 8A, the pen-type injector includes a main body case 30 and a needle unit 27. The needle unit 27 includes a needle 25 and a needle housing 26 that surrounds a part of the needle 25. As shown in FIG. 7D, the needle 25 is inserted into the main body case 30 through a rubber insertion portion 30 b provided in the radial direction of the distal end portion of the cylindrical main body case 30. By the insertion, the drug solution in the main body case 30 passes through the needle 25 and can be administered to the patient.
In order to administer pharmaceuticals using the pen-type syringe, after setting the dose to the pen-type syringe, the needle cap 24 attached to the needle 25 is removed, and then the needle 25 is inserted into the patient's body. Then, the medicine previously put in the pen-type syringe is administered into the patient's body.

  Each time the injection is performed, the needle unit 27 is detached from the main body case 30, and a new needle unit 27 is attached to the main body case 30 each time an injection is performed.

Needle unit 27;
The needle unit 27 before being attached to the main body case 30 shown in FIG. 6 is stored in the needle case 20 in advance and then sealed with the cover film 22.
Here, as shown in FIG. 7D, a needle housing 26 is provided around the needle 25 to be fitted to the small diameter portion 21 at the tip of the needle case 20.

How to install the needle unit 27;
First, after the cover film 22 shown in FIG. 6 is peeled off as shown in FIG. 7A, the tip of the body case 30 is inserted into the insertion hole 23 of the needle unit 27 housed in the needle case 20 as shown in FIG. 7B. After the portion 31 (FIG. 7A) is inserted, the needle case 20 is rotated with respect to the main body case 30 in a predetermined tightening direction a plurality of times. As shown in FIG. 8A, the distal end portion 31 of the main body case 30 and the insertion hole 23 of the needle unit 27 are formed with screws that are screwed with each other. As shown, the needle unit 27 is fixed to the main body case 30.

  Thereafter, when the needle case 20 is pulled out from the main body case 30, the needle unit 27 is attached to the main body case 30 as shown in FIG. 7C. A needle cap 24 that covers the needle unit 27 is attached to the needle unit 27. The needle cap 24 is removed and used at the time of injection.

Medical waste container 1:
The needle unit 27 is removed and discarded every time an injection is performed.
Hereinafter, the structure of the medical waste container 1 for removing and discarding the needle unit 27 will be described.

As shown in FIG. 1, the medical waste container 1 is a rectangular container, and includes a container body (accommodating portion) 12 and a lid portion 10 including an inner lid 13 and an outer lid 14.
The inner lid 13 and the outer lid 14 are integrally formed, and a thin portion 15 is formed between the inner lid 13 and the outer lid 14. The inner lid 13 is fitted into the upper portion of the container body 12, and the outer lid 14 is rotatable around the thin portion 15.

  The inner lid 13 includes an opening 16 into which the used needle unit 27 and the needle case 20 are inserted and a bottomed removal recess 17 used for removing the needle unit 27 on the upper surface. In order to remove the needle unit 27 and insert the removed needle unit 27 into the medical waste container 1 from the opening 16, the outer lid 14 is rotated and opened.

  The thin-walled portion 15 is provided on the back side B of the medical waste container 1. When discarding the used needle unit 27 and the needle case 20 stored in the medical waste container 1, the outer lid 14 is rotated toward the front side F, and the opening 16 is closed. The two claws 18a provided at the front end of the outer lid 14 are bent and pushed into the two fitting holes 18b provided on the upper surface of the inner lid 13, respectively, and closed so that the outer lid 14 does not open.

  The medical waste container 1 includes a handle 19b that can rotate around a hinge portion 19a, and the medical waste container 1 can be carried with the handle 19b.

To remove the needle unit 27 from the main body case 30, as shown in FIG. 5A, the needle unit 27 of the main body case 30 is pushed into the needle case 20, and the needle housing 26 is inserted into the small diameter portion 21 of the needle case 20. To fit. After the fitting, when the main body case 30 is pulled up from the medical waste container 1, the needle unit 27 is attached to the tip of the main body case 30.
Thereafter, as shown in FIG. 5B, when the needle unit 27 is rotated a plurality of times in a predetermined removal direction, the needle unit 27 is fixed to the distal end portion 31 of the main body case 30.
After the fixing, the needle case 20 is pulled out from the main body case 30 and the needle unit 27 is removed from the main body case 30. Then, as shown in FIG. 5C, the needle case 20 containing the needle unit 27 is medically discarded from the opening 16. Discard in container 1.

Here, when the body case 30 is pushed into the needle case 20, a medical accident such as the needle 25 sticking into the nurse's finger is likely to occur. Therefore, as shown in FIG. 3, the medical waste container 1 is provided with a removal recess 17 on the upper surface of the inner lid 13 for standing the needle case 20.
As shown in FIG. 4, the needle unit 27 side of the main body case 30 is pushed into the needle case 20 erected in the removal recess 17 and is pulled up, whereby the needle housing 26 of the needle unit 27 is inserted into the small diameter portion 21 of the needle case 20. So that the needle case 20 can be safely attached to the tip of the main body case 30.

Removal recess 17:
As shown in FIG. 2, a small diameter portion 21 (FIG. 6) of the needle case 20 is inserted into the removal recess 17. The removal concave portion 17 has a depth D of 6 in accordance with the small diameter portion of the commercially available needle case so that the small diameter portion 21 of the needle case 20 does not fit into the concave portion 17 and the needle case 20 does not fall down. 0.0 mm to 10 mm, and the diameter is set to 5.8 mm to 6.8 mm.
The upper surface of the removal recess 17 is formed in a slightly rounded shape so that the small-diameter portion 21 of the needle case 20 can easily enter.

As shown in FIG. 3, when the small diameter portion 21 of the needle case 20 is inserted into the removal recess 17, the side surface of the small diameter portion 21 (FIG. 6) of the needle case 20 is supported on the side surface 17a of FIG. The lower end of the small diameter portion 21 is supported on the bottom portion 17b of the needle 17, and the needle case 20 is erected as shown in FIG.
The planar shape of the removal recess 17 does not necessarily have to be a circle, and is a shape such as a polygon or an ellipse in which the needle case 20 does not fit in the removal recess 17 and does not fall down in the removal recess 17. I just need it.
In addition, as shown in FIG. 11, a small hole 17 c may be formed in the side surface 17 a of the removal recess 17.

How to remove the needle unit 27:
In order to remove the needle unit 27 from the main body case 30, first, as shown in FIG. 3, the small-diameter portion 21 of the needle case 20 capable of storing the needle unit 27 is inserted into the removal recess 17, and the insertion hole is inserted. With the needle 23 facing upward, the needle case 20 is placed in an upright state in the removal recess 17.

  Thereafter, as shown in FIGS. 4 and 5A, the needle unit 27 is pushed into the needle case 20 with the main body case 30 to which the needle unit 27 is attached facing the needle 25 downward.

  When the main body case 30 is pulled up after the push-in, the needle housing 26 is fitted into the small diameter portion 21 of the needle case 20, so that the needle case 20 is attached to the distal end of the main body case 30 and is removed. Removed from.

  5B, when the needle case 20 is rotated a plurality of times in the predetermined direction shown in FIG. 5B with respect to the main body case 30, the screw of the needle unit 27 and the screw of the distal end portion 31 of the main body case 30 are obtained. And come off. When the needle case 20 is pulled out from the main body case 30 in such a state, the needle unit 27 is removed from the main body case 30 in a state where the needle unit 27 is housed in the needle case 20.

  After the removal, as shown in FIG. 5C, the needle case 20 in which the needle unit 27 is stored is put into the container body 12 through the opening 16 of the medical waste container 1 and discarded.

FIG. 9 shows a second embodiment.
As shown in FIG. 9, the medical waste container 1 of Example 2 is formed in a cylindrical shape.
The inner lid 13 of the medical waste container 1 is formed with an opening 16 for discarding the removal recess 17 and the needle case 20 in which the used needle unit 27 is stored.
Other configurations are the same as those of the first embodiment, and the same reference numerals are given to the same portions or corresponding portions, and the description thereof is omitted.

The medical waste container 1 is preferably formed in a size that can be carried and used by a patient.
As shown in FIG. 10, instead of the opening 16, a removal hole 40 for removing an injection needle of a normal syringe other than the pen-type syringe may be formed.

It is a schematic perspective view which shows the medical waste container concerning Example 1 of this invention. It is the expanded schematic sectional drawing which shows the same removal recessed part. It is a schematic perspective view which shows a medical disposal container. It is a schematic perspective view which shows a medical disposal container. 5A to 5C are schematic perspective views illustrating a method of removing the needle unit. It is a schematic perspective view which shows a needle case. 7A to 7D are schematic perspective views illustrating a method of mounting the needle unit to the pen-type syringe. 8A and 8B are schematic perspective views showing a pen-type syringe. It is a schematic perspective view which shows the medical waste container concerning Example 2 of this invention. It is a schematic perspective view which shows the modification of a medical waste container. It is a schematic sectional drawing which shows the modification of a removal recessed part.

Explanation of symbols

1: Medical waste container 10: Lid 12: Container body (container)
16: Injection port (opening)
17: Removable recess 20: Needle case 23: Insertion hole (opening of needle case)
25: Needle 26: Needle housing 27: Needle unit 30: Body case

Claims (1)

A needle unit having a needle and a needle housing surrounding a part of the needle is attached to and detached from the main body case with a screw, and the needle unit is removed from the main body case of a pen-type syringe suitable for a patient to administer a medicinal solution by himself / herself. A medical waste container for realizing a method of removing ,
In the method, a small-diameter portion of a needle case capable of accommodating the needle unit is inserted into a bottomed removal recess formed in a medical waste container, and the opening of the needle case opens upward. Arranging the needle case in an upright state in the removal recess in a state;
With the needle unit screwed into the body case, the pen type syringe is pushed into the needle case with the needle of the pen type syringe facing downward, and the needle case is fitted into the needle housing of the needle unit. A process of
After the pushing, the step of pulling up the pen-type syringe and pulling the needle case from the recess for removal in a state where the needle case is fitted to the needle unit;
By rotating the needle case a plurality of times when the needle unit is screwed into the main body case, the needle unit is detached from the main body case while maintaining the state where the needle unit is fitted to the needle case. Process,
A step of putting the needle unit into the medical waste container together with the needle case and discarding the needle unit after the detachment ;
The disposal opening into which the needle case can be thrown and the bottomed removal recess for erecting the needle case are formed in the inner lid that is closed by the outer lid in the lid portion,
The recess has a depth of 6.0 mm to 10 mm, a diameter of 5.8 mm to 6.8 mm, the needle case does not fit into the recess, and the needle case falls within the recess. The medical waste container is characterized in that the bottom of the concave portion can support the lower end of the standing needle case so that there is no gap.

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