JPH0428587Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to the structure of an acupuncture needle holding device used in acupuncture in Oriental medicine.

<Prior art> Conventionally, there is a disposable acupuncture needle of this type as shown in Fig. 4 (Japanese Patent Application Laid-Open No. 58-97361).
(Refer to the publication number, etc.)

Its configuration is as follows.

A rod-shaped needle handle 2 is fixed to one end of the needle body 1, and the needle body 1 is made of metal, such as brass, chrome plating, or metal.
The needle handle part 2 is generally made of aluminum, cupronickel, stainless steel, etc. Like the needle body 1, it is made of metal, or it is made of synthetic resin such as polypropylene.
The metal needle handle part 2 and the needle body 1 are fixed together by crimping or the like by passing the needle body 1 through the needle handle part 2.

The needle tube part 3 is for protecting and guiding the needle body 1, and has a cylindrical cross-sectional shape with an inner diameter large enough for the needle handle part 2 to pass through, and a length slightly shorter than the total length of the needle body 1 and the needle handle part 2. It is made of synthetic resin such as polypropylene.

Furthermore, as a holding method using an acupuncture needle holding device for fixing the needle tube part 3 at a predetermined position with respect to the needle body 1 and the needle handle part 2, as shown in FIGS. 5a to 5c, A method is adopted in which a clip 5 made of resin such as hard vinyl chloride is inserted between the needle body 1 and the needle tube part 3 from the needle handle part 2 side.

Then, these are packaged as a set using a conventional method such as a blister packaging bag (not shown). After this, gas sterilization is performed using a gas containing ethylene oxide gas.

When in use, remove the sterilized acupuncture needle from the packaging container, pull out the clip 5, apply the tip 3a of the needle tube section 3 to the acupuncture point or treatment area, and tap the end 2a of the needle handle 2 to release the needle. The tip of the body 1 is pierced, and the needle tube part 3 is pulled out with the needle body 1 remaining. After that, perform the treatment in the usual manner.

<Problems to be solved by the invention> However, in the case of such a conventional holding method using an acupuncture needle holding device, the temperature rise during gas sterilization (maintained at 40 to 60°C for 5 hours) As a result, plastic deformation as shown in FIGS. 6 and 7 may occur in the needle tube portion 3 and the clip 5 made of resin such as hard vinyl chloride. That is, due to the reaction of the holding force F that is thought to have been acting on the needle handle part 2 by the clip 5, the needle tube part 3 may extend in the direction of the holding force F, and furthermore, the clip 5 may have plasticity in the width direction. Deformation occurs, and as a result, the cross section of the needle tube section 3 becomes approximately triangular.

Furthermore, there is a risk that a crack will occur near the center portion 6 of the clip 5 due to the plastic deformation, and the holding force F will not be applied at all.

Therefore, there is a risk that the holding force F that is thought to have been exerted on the needle handle portion 2 by the clip 5 may be reduced, and that the clip 5 itself may become easily detached from the needle tube portion 3. For this reason, the needle body 1 moves within the needle tube section 3, and the distal end portion 1a of the needle body 1 may break through a blister packaging bag or the like and come into contact with air. By the way, if the tip 1a of the needle body 1 comes into contact with the air, it will not be able to maintain a sterile condition and there is a risk of being exposed to infection by pathogens in the air.
Acupuncture and moxibustion needles that are held in such a state cannot be used, resulting in a decrease in yield.

The present invention was developed in view of these conventional problems, and is an acupuncture and moxibustion method in which the needle body is reliably held in the needle canal by improving the structure of the holding device between the needle and the needle canal. The purpose of this invention is to provide a holding device for Australian needles.

<Means for Solving the Problem> Therefore, in the present invention, a needle body having a rod-shaped needle handle at one end and a cylindrical needle tube part encasing the needle body are interposed between them. The holding device is an elastic member, and when the holding device is attached to the needle tube together with the needle body, one end thereof on the needle body side is locked to the side surface of the needle body. A first locking portion is provided at the other end of the needle, and a second locking portion is connected to the side surface of the needle handle, and the first locking portion and the second locking portion are The needle body or the needle handle and the holding device are inserted so as to cross each other so as to be located on opposite sides with respect to the body.

Furthermore, the holding device may intersect with the needle handle, and the sum of the width of the holding device at the intersection and the outer diameter of the needle handle may be set to be larger than the inner diameter of the cylindrical needle tube.

<Operation> According to the above configuration, the first locking portion and the second locking portion are located on opposite sides with respect to the needle body.
Since the needle body or the needle handle and the holding device are inserted in a crossed manner, the needle body and the holding device are each elastically deformed. Then, the restoring force exerts a pressing force on the needle body in the direction of the inner wall of the needle tube portion, thereby fixing the needle body and the holding device at a predetermined position.

Further, by configuring the holding device to intersect with the needle handle, and setting the sum of the width of the holding device at the crossing point and the outer diameter of the needle handle to be larger than the inner diameter of the cylindrical needle tube, A pressing force in the direction of the inner wall of the needle tube portion also acts in the width direction of the holding device, thereby making it possible to more reliably fix the needle body and the holding device at a predetermined position.

<Example> An example of the present invention will be described below based on the drawings.

1a, b and 2 a, b show a first embodiment of the present invention.

Regarding the acupuncture and moxibustion needle, the same parts as those of the conventional product are given the same reference numerals and the explanation will be omitted.

First, the structure of the tip 10, which is a holding device, will be explained.
A locking portion 12, a second locking portion 14 provided at the other end, the first locking portion 12, and the second locking portion 1.
4 and a narrow width portion 15 that is continuous with the width portion 4.

The first locking portion 12 has a widthwise length A smaller than the inner diameter φD of the needle tube portion 3, and is provided with a protruding portion 16 that protrudes from the narrow portion 15 by a length B in one direction. Here, the length B is a length necessary and sufficient for the protrusion 16 to lock onto the needle body 1, as will be described later. Further, the second locking portion 14 has a length C in the width direction larger than the inner diameter φD of the needle tube portion 3;
A recess 18 having a width F slightly smaller than the outer diameter φE of the needle handle 2 is provided on one surface 17.

Further, the narrow width portion 15 includes a uniform width portion 19 that is continuous with the first locking portion 12 and a connection point 20 between the end surface 23 of the second locking portion 14 and the uniform width portion 19.
The slope part 21 is continuous with the connecting point 20.
The width G of the inclined part 21 at the position 22 closer to the locking part 14 is such that the sum H (=G+E) of the width G and the outer diameter φE of the needle handle part 2 is the same as that of the cylindrical needle tube part 3. It is set to be slightly larger than the inner diameter φD.

The material for this holding device can be molded from various synthetic resins, but polypropylene is preferred as an elastic material.

To outline the method of inserting the tip 10 together with the needle handle part 2 from the needle handle part 2 side, the needle handle part 2 is inserted into the recess 18 provided in the second locking part 14, and the needle handle part 2 is inserted into the recess 18 provided in the second locking part 14. is inserted into the needle tube part 3 while pushing it with a finger or the like to the side opposite to the second locking part 14 with respect to the needle body 1. At this time, since the width direction length A of the first locking part 12 is smaller than the inner diameter φD of the needle tube part 3, the first locking part 12 is smoothly inserted into the needle tube part 3, and the narrow width Since the protruding part 16 protruding from the part 15 in one direction by a length B is provided so as to be hooked on the opposite side of the needle body 1, the first
The locking part 12 is fixedly inserted into the opposite side. Furthermore, since the widthwise length C of the second locking part 14 is larger than the inner diameter φD of the needle tube part 3, the insertion is continued until the end surface 23 of the second locking part 14 comes into contact with the other end 3b of the needle tube part 3. be done.

Next, the needle body 1 having a rod-shaped needle handle 2 at one end and the cylindrical needle tube part 3 are held together by inserting the tip 10 from the needle handle 2 side together with the needle handle 2. will be explained with reference to FIGS. 2a and 2b.

As shown in FIGS. 2a and 2b, when the tip 10 is inserted together with the needle handle 2, the tip 10 is inserted into the first
The locking portion 12 is located closer to the center line 25 of the needle tube portion 3 than the needle body 1, and the second locking portion 14 is located substantially in contact with the inner wall 26 of the needle tube portion 3. That is, the first locking portion 12 and the second locking portion 14 of the tip 10 are located on opposite sides with respect to the needle body 1. The tip 10 is placed at a point 27 on the needle handle 2.
The needle handle portion 2 and the tip 10 intersect with each other, and the tip 10 is elastically deformed by the needle body 1. Due to this elasticity, a pressing force f acts on the needle body 1 in the direction of the inner wall 26 of the needle tube section 3 through the first locking section 12. Also, in the tip 10, a pressing force f' acts in the direction of the inner wall 26 of the needle tube part 3 in the narrow part 15 on the second locking part 14 side from a point 27 on the needle handle part 2. The holding needle body 1 and the tip 10 have the above-mentioned pressing force f.
and is fixed in a predetermined position by the pressing force f'.

Furthermore, at a position 22 slightly closer to the second locking part 14 side from the connection point 20 of the inclined part 21, the sum H of the width G of the inclined part 21 and the outer diameter φE of the needle handle part 2 is
Since it is set to be slightly larger than the inner diameter φD of the needle tube portion 3, H
>There is always a part where the relationship D is established. As a result, a pressing force that tries to spread the needle tube section 3 outward also acts in the width direction of the tip 10, which makes it possible to securely fix the needle body 1 and the tip 10 at a predetermined position. Become.

Therefore, in the holding method using the tip 10, even if the needle tube part 3 and the tip 10 are deformed due to the temperature rise (40 to 60°C) during gas sterilization, the pressing force f and the pressing force f' Further, the needle body 1 and the tip 10 are reliably fixed at a predetermined position by the pressing force that tries to spread the tip 10 in the width direction.

Further, in this embodiment, since the tip 10 is made of polypropylene, the material itself has a small hardness and a large coefficient of friction, so that the fixation is more reliable.

Furthermore, the chip 10 according to this embodiment is provided with a protrusion 16 that protrudes in one direction from the narrow width portion 15 on the first locking portion 12, and the width of the second locking portion 14 is Since the length C in the direction is made larger than the inner diameter φD of the needle tube section 3, the needle body 1 and the tip 1
0 becomes loose and the needle body 1 begins to move along the needle tube section 3, the needle base 29 of the needle handle section 2
simply moves until it comes into contact with the protrusion 16. Here, since the tip 10 is inserted until the end surface 23 of the second locking part 14 comes into contact with the other end 3b of the needle tube part 3, the tip 10 does not move in the direction of the needle body 1 and is The needle body 1 also does not move significantly along the needle tube portion 3 in the direction of the tip 1a of the needle body 1.

Furthermore, since the length of the needle tube section 3 is slightly shorter than the total length of the needle body 1 and the needle handle section 2, when the needle body 1 moves in the direction of the distal end 1a, the distal end of the needle body 1 1
a will not break through the blister packaging bag, etc.
The needle body 1 will not come into contact with the air,
It becomes possible to maintain sterile conditions.

Furthermore, the tip 10 according to the present embodiment has a concave portion 18 having a width F that is slightly smaller than the outer diameter φE of the needle handle portion 2 on one surface 17 of the second locking portion 14. Insert the needle handle part 2 into the recess 18 provided in the part 14, and insert it into the needle tube part 3 while pushing the first locking part 12 with your finger or the like to the side opposite to the second locking part 14 with respect to the needle body 1. When doing so, the needle handle 2 easily enters the recess 18, improving work efficiency.

Figures 3a and 3b show a second embodiment of the invention.

It should be noted that the same components as in the first embodiment are given the same reference numerals and their explanations will be omitted.

In the chip 30 according to the present embodiment, the narrow part 15 that connects the first locking part 12 and the second locking part 14 is continuous with the first locking part 12 and is connected to the first locking part 12 and the second locking part 14. A first uniform width portion 32 offset with respect to the center line 31 of the chip 30, a second uniform width portion 33 continuous with the first uniform width portion 32 and disposed closer to the center line 31, The slanted portion 21 is continuous with the end surface 23 of the second locking portion 14 and the connecting portion 34 with the second uniform width portion 33.

Even in this case, similar actions and effects can be obtained.

<Effects of the invention> As explained above, according to the invention, in the acupuncture needle holding device, the first locking portion and the second locking portion are provided, and the needle body or the needle handle and the holding device are provided with the first locking portion and the second locking portion. Since the needle body and the holding device are inserted crosswise with each other, the needle body and the holding device are each elastically deformed, and the restoring force exerts a pressing force, thereby firmly fixing the needle body and the holding device in a predetermined position. This has the effect of improving product yield.

[Brief explanation of drawings]

Figures 1a and b show the first part of the holding device according to the present invention.
2a and 2b are longitudinal sectional views of the acupuncture needle in which the holding device according to the above embodiment is set; FIGS. 3a and 3b are side views and plan views showing the holding device according to the present invention. A side view and a plan view showing two embodiments, FIG. 4 is a vertical cross-sectional view of an acupuncture needle showing a conventional example, and FIGS. 5 a and b are longitudinal cross-sections of an acupuncture needle with a conventional holding device set Fig. 5c is a view taken along the line D-D in Fig. 5b, and Figs. 6 and 7 are cross-sectional views of an acupuncture needle with a holding device set to explain the conventional problems. be. 1... Needle body, 2... Needle handle part, 3... Needle tube part, 1
0, 30... Chip, 12... First locking part, 1
4...Second locking part, 15...Narrow width part.

Claims (1)

[Claims for Utility Model Registration] (1) A needle body having a rod-shaped needle handle at one end and a cylindrical needle tube part enclosing the needle body are interposed between them and locked to each other. A retaining device for coupling,
The holding device is an elastic member, and when the holding device is attached to the needle tube along with the needle body, a first locking portion that is locked to the side surface of the needle body is provided at one end on the needle body side, and a first locking portion is attached to the side surface of the needle body at the other end. A second locking portion that locks on the side surface of the needle handle is provided, and the first locking portion and the second locking portion are connected to each other.
A holding device for an acupuncture and moxibustion needle in which the needle body or needle handle and the holding device are inserted so as to cross each other so that the locking portion of the needle is located on the opposite side with respect to the needle body. (2) A utility model registration request where the holding device intersects with the needle handle, and the sum of the width of the holding device at the crossing point and the outer diameter of the needle handle is set larger than the inner diameter of the cylindrical needle tube. A holding device for an acupuncture needle according to item 1.