JP2001025493A - Injection needle disposal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispose of a used injection needle, both ends of which is sharp by providing a heating coil to make a needle tube itself heat by electromagnetic induction, a needle extraction portion pinching the needle tube of an injection needle and extracting the needle tube from a needle base and a needle accumulation portion storing extracted needle tubes in a dust box. SOLUTION: After a power switch is turned on, a syringe 50 is inserted into an insertion opening of an insertion plate 12 and pushed down, the needle tube of a used injection needle 7 is penetrated into the contact portion of a rotating roller 16 and a pressure contact roller 17, and enters a dust box 24. When the injection needle 7 is inserted, and the lever 4b of a microswitch 4a is turned on, depressed by the insertion plate 12, the rotating roller 16 is rolled by a motor 20 and a heating coil 8 heats by itself through a resonance circuit. As a result, the needle base 7a is heated and fused, the needle tube 7b pinched between the rotating roller 16 and the pressure contact roller 17 is extracted from the needle base 7a, drops into the dust box 24 and stored there.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection needle processing apparatus for processing used injection needles.

[0002]

2. Description of the Related Art A used injection needle has a sharp end in a needle tube and is contaminated with blood, so it is dangerous to dispose it as general garbage, and it is necessary to treat it separately from general garbage. . There are two types of injection needles: a general injection needle with only one end of the needle tube being sharp, and a needle with both ends of the needle tube being sharp, such as a blood collection needle, one of which is inserted into a vacuum blood collection tube. When a general injection needle is mounted on a syringe or a blood collection needle is mounted on a vacuum blood collection tube, plastic is provided in a portion serving as a needle base.

[0003] As an apparatus for processing such an injection needle,
There is an invention disclosed in JP-A-9-70417. According to this disclosure, the stainless steel injection needle is kept in contact with the syringe and is brought into contact with the upper electrode roller and the lower electrode roller, and the current is supplied from the battery connected to both electrodes. The needle tube was melted by heat, and cut into swarf to be stored in a tray.

[0004]

In the conventional injection needle processing apparatus, the distance between the upper electrode roller and the lower electrode roller cannot be reduced to zero, so that the tip of the needle tube is inevitably located between the two rollers. There is a problem that the distance remains.

[0005] Further, when an injection needle used by inserting one tip into a vacuum blood collection tube like a blood collection needle is processed by an injection needle processing device, as described above, the other tip is one. In addition to the remaining portion, one of the sharp ends was inserted into the vacuum blood collection tube up to the plastic needle base, so that there was a problem that it could not be processed at all, and it was not technically satisfactory.

The present invention provides an injection needle processing apparatus capable of completely processing not only a general used needle having only one sharp end but also a used needle having sharp both ends such as a blood collection needle. It is intended to provide.

[0007]

In order to achieve the above object, the present invention provides an injection needle processing apparatus comprising: a heating coil for self-heating a needle tube by electromagnetic induction; and a heating drive unit for supplying an alternating current to the coil. And pinching the needle tube of the injection needle,
A needle withdrawing section for pulling out the needle tube from the needle base, and a needle accumulating section for storing the needle tube withdrawn from the needle base in a dust box.

[0008]

Embodiments of the present invention will be described with reference to the drawings. Elements common to the drawings are denoted by the same reference numerals. First Embodiment FIG. 1 is a schematic configuration diagram of an injection needle processing device according to a first embodiment, FIG. 2 is a detailed view of a coil of a heating unit, FIG. 3 is an explanatory diagram of self-heating by electromagnetic induction, and FIG. It is a detailed view of a needle pulling-out part.

The injection needle processing device 1 comprises a heating section 2, a needle base guide section 3, a heating position detecting section 4, a needle pulling section 5, and a needle accumulating section 6.

The heating unit 2 generates an eddy current in the needle tube 7b of the needle base 7a by electromagnetic induction to cause self-heating. As shown in FIG. 2, the heating unit 2 forms a single winding 9 by winding several tens of enamel wires 9 a having a wire diameter smaller than the diameter of the needle tube 7 b to be heated. Is provided with a heating coil 8 (hereinafter referred to as a heating coil 8).
The reason why the diameter of the enamel wire 9a is smaller than the diameter of the needle tube 7b is that the magnetic field generated from the heating coil 8 does not generate an eddy current in the heating coil 8 and the needle tube 7b of the injection needle 7 is more efficiently used.
This is to generate an eddy current by interlinking.

As shown in FIG. 3, a large current periodically flows in the winding bundle 9 of the heating coil 8 in the direction of arrow C--D. 11 is generated in the direction of the arrow AB and interlinks with the stainless steel pipe constituting the needle tube 7b at the center of the heating coil 8. An eddy current that attempts to cancel the change in magnetic flux flows in the stainless steel pipe in the direction of the arrow EF, causing self-heating and self-heating due to hysteresis loss.

The needle base guide section 3 guides the needle base 7a of the injection needle 7 to the heating section 2 and inserts a circular insertion plate 12 for inserting the needle base 7a and an arrow G- along the outer cylinder (not shown). A cover 13 slidable in the H direction, a stopper 14 for stopping the insertion plate 12, and a periphery of the insertion plate 12 provided between the cover 13 and the stopper 14 contacting the cover 13. And a coil spring 15 to be brought into contact therewith.

The heating position detector 4 includes a needle base 7a of the injection needle 7.
The micro switch 4a is provided as a sensor for detecting that the
Plate 1 is located at the center of the heating coil 8
2 contacts the detection lever-4b to turn on the microswitch 4a. At this time, the insertion plate 12 is
Stops in contact with 4.

The needle pull-out portion 5 includes a rotating roller 1 opposed to the rotating roller 1.
The needle tube 7b of the injection needle 7 is held between the needle 6 and the press roller 17, and the needle tube 7b is pulled out of the heated plastic of the needle base 7a. As shown in FIG. 4, a shaft 16a of the rotary roller 16 is supported by a bearing 19 provided on a side wall of the roller box 18, and a motor 20 provided outside the roller box 18 is provided. Gear 16b meshing with drive gear 20a
At the shaft end.

The pressing roller 17 is biased toward the rotating roller by a coil spring 21.
2 and is supported by bearings 23 provided in the same. The floating arm 22 is slidably supported by guide rails 18a and 18b provided on the side wall of the roller box 18.

The rotary roller 16 is moved by an arrow I by a motor 20.
To the needle tube 7 of the injection needle 7 together with the pressure roller 17.
The needle tube 7b is pulled out of the heated needle base 7a while holding the b, but when it is not pulled out, the needle tube 7b idles. As a material of the rotary roller 16 and the pressure roller 17, for example, stainless steel is used. Although the shape is cylindrical, a groove parallel to the axis may be provided on the surface.

The needle accumulating section 6 guides the needle tube 7b pulled out from the needle base 7a and stores it in the dust box 24.
guide plate 25 for guiding b to dust box 24
And a needle dust sensor 26 for detecting that the needle tube 7b stored in the dust box 24 has reached a predetermined amount. The needle scrap sensor 26 includes a light emitting diode 26a and a light receiving diode 2
6b.

FIG. 5 is a control block circuit diagram of the injection needle processing apparatus shown in FIG. The heating coil 8 is a condenser 30
Are connected in parallel with each other to form a resonance circuit 31.
One end of the resonance circuit 31 drives the resonance circuit 31 through a diode 32.
33 (hereinafter referred to as IGBT 33). The other end of the resonance circuit 31 is connected to a power supply, for example, a + side of a battery via a switch 34a with a breaker.

Switch 34a with breaker and resonance circuit 3
A capacitor 36 for stabilizing the power supply is connected between the first end and the first end. A charging terminal 38 is connected to the battery 35 via a diode 37. A three-terminal regulator 4 is connected via a fuse 39 to a breakerless switch 34b which switches in conjunction with a switch 34a having a breaker.
0 is connected to the input side to stabilize the voltage. Switch 34a with breaker and switch 34b without breaker
And the power switch 34.

The output side of the three-terminal regulator 40 includes a motor 20 for rotatingly driving the rotary roller 16, a motor drive block circuit 41, a light emitting diode 26a, a light receiving diode 26b, and needle dust. It is connected to a full display diode 42 and a power-on display diode 43.

The output side of the three-terminal regulator 40 is connected to the micro switch 4a and the timer block circuit 44. When the micro switch 4a is pressed, a low level signal is output to the timer block circuit 44. Are connected so that they are converted into drive signals by the timer block circuit 44 and output to the motor drive block circuit 41 and the IGBT drive block circuit 45.

FIG. 6 is a time chart for explaining the operation of the injection needle processing apparatus shown in FIG. 1, wherein (A) to (D) show the position of the insertion plate 12 and the microswitch 4a, respectively.
, An output signal, a timer signal, and a drive signal.

Next, the operation will be described. When the power switch 34 is turned on at time t1, the three-terminal regulator 4
0, the power is supplied to the control circuit, the power-on display diode 43 is lit, and the needle dust sensor 26 detects whether the amount of dust in the dust box 24 is not full. If there is a needle waste full display
The lamp 42 is turned on.

The operator replaces the empty dust box 24 with an empty one, and after confirming that the diode waste full display diode 42 has been turned off, as shown in FIG.
Is inserted into the insertion opening of the insertion plate 12 and pressed in the direction of arrow G.

The needle tube 7b of the injection needle 7 passes through the center of the heating coil 8 and is inserted into the contact portion between the stationary rotary roller 16 and the pressure roller 17, and when the syringe 50 is further depressed. , The needle tube 7b passes between the rollers and guide plate 2
5 and enters the dust box 24.

At this time, the needle base 7a of the injection needle 7 is in the heating coil 8, and at the same time, the lever of the micro switch 4a is
4b is pressed on the insertion plate 12 at time t2.

When the position of the insertion plate 12 exceeds the switch operating position as shown in FIG. 6A, FIG.
As shown in FIG. 6, the micro switch 4a is turned on, and the timer of the timer block circuit 44 generates a signal of the maximum Tmax as shown in FIG. 6C, and the drive signal as shown in FIG. Becomes effective.

When the drive signal becomes valid, the motor 20 starts to rotate in the direction of the arrow I by the motor drive block circuit 41, and the IGBT drive block circuit 45 turns the IG.
A rectangular wave having a frequency of 30 to 200 KHz and a duty ratio is applied to the base terminal of the BT33,
Starts an on / off operation, and an intermittent current flows from the battery 35 to the resonance circuit 31 via the switch 34a with a breaker.

When the intermittent current flows through the resonance circuit 31, an electric parallel resonance phenomenon occurs between the capacitor 30 and the heating coil 8, and a large AC current and an AC voltage appear at both ends of the resonance circuit 31, and the heating coil As shown in FIG. 3, the one winding bundle 9 includes a magnetic field 11 as shown by a broken line in proportion to a change in a large current flowing periodically in the direction of arrow CD.
Are generated in the directions of arrows AB and interlink with the stainless steel pipe constituting the needle tube 7b at the center of the heating coil 8.
An eddy current that attempts to cancel the change in magnetic flux flows in the stainless steel pipe in the direction of the arrow EF, causing self-heating and self-heating due to hysteresis loss.

When the needle base 7a is heated and the plastic is softened and cannot withstand the pulling force of the rotating roller 16 and the pressure roller 17 driven by the motor 20, the needle tube 7b is closed. It falls out of the needle base 7a and is dropped and stored in the dust box 24.

On the other hand, the remaining plastic is pushed up in the direction of arrow H together with the syringe 50. At time t3, the microswitch 4a is also turned off, the rotation of the motor 20 and the drive of the resonance circuit 31 are stopped, and the used injection needle is stopped. Is terminated.

Although the first embodiment has been described using a battery as a power source, a DC power source obtained by rectifying an alternating current may be used to obtain a stronger output.

According to the first embodiment, the needle base of the used injection needle is self-generated by electromagnetic induction to pull out the needle tube from the plastic needle base and discard it. Therefore, only one end is sharp. It can completely treat not only used general injection needles but also used injection needles with sharp ends such as blood collection needles.

Further, since the needle tube is pulled out by heating the needle base, the amount of energy is small compared with the case where the needle tube is blown out, which is economical.

When the needle tube is withdrawn from the needle base, the needle tube is sandwiched between a pair of opposed rollers and a pressure roller, and the rotary roller is rotated to rotate the needle tube. When the needle base reaches a predetermined temperature, the needle tube is pulled out, and smoke is generated due to overheating.
Eliminates the risk of fire.

In addition, since the rotating rollers of the pair of rollers rotate, and the press-contact rollers are pressed against the rotating rollers by a constant force and rotate, the heating roller cannot be heated for some reason. If the needle tube is not enough to be pulled out or if an injection needle that is not applicable is inserted into the device and cannot be pulled out, it can be withdrawn from the device.

Further, since the pressure roller is pressed against the rotating roller with a constant force, the needle tube is pulled out with a constant force regardless of the thickness of the needle tube, and the heating temperature can be easily controlled.

Further, even if the apparatus is knocked down for some reason, the entrance of the dust box is blocked by the rotary roller and the pressure roller, so that the removed needle tube does not fall out of the dust box.

Further, since the amount of burning blood is small as compared with the case where the needle is blown, there is also an effect that a bad smell is hardly generated.

Further, since the maximum driving time is determined by the timer block circuit for the driving time for driving the heating coil and the roller, it is possible to safely cope with the danger of overheating and the contamination of unheated foreign substances.

Second Embodiment A different point of the injection needle processing apparatus according to the second embodiment from the first embodiment is the structure of the heating unit.

FIG. 7 is an exploded perspective view of a heating unit according to the second embodiment, and FIG. 8 is an explanatory view when the injection needle is heated. The outside of the heating coil 8 is covered with a ferromagnetic core 60 (a ferrite or the like is suitable for high frequency use) having a cutout. A core unit 63 fixed with a ring 61 of a conductive resin mounted thereon is inserted in contact with the core 62 with the core 60. When the core unit 63 is inserted into the core 60, as shown in FIG. 8, the ring 61 is not in contact with the core 60, and the needle base 7a of the injection needle is located in that space.

Next, the operation will be described with reference to FIG. When a resonance current flows through the heating coil 8, a magnetic flux is generated from the heating coil 8, and as shown by a broken line, a large amount of magnetic flux is generated through the core 60 having a small magnetic resistance.

Since the core unit 63 is not in contact with the core 60 on the needle base 7a side of the injection needle, the magnetic flux once jumps out of the core 60 into the air at the center of the coil, and the magnetic resistance increases. When the needle tube 7b of the injection needle is inserted therein, it passes through the needle tube 7b in search of a magnetic path of a little reluctance, and jumps out into the air again near the ring 61, and the core 6
2 to form a magnetic circuit.

According to the second embodiment, since the heating coil is covered with the ferromagnetic core, a large amount of magnetic flux is generated, and the magnetic flux can be focused on the needle base of the injection needle. Thus, more efficient heating can be performed as compared with the first embodiment.

Third Embodiment A different point of the injection needle processing apparatus according to the third embodiment from the first embodiment is the structure of the needle pull-out portion.

FIG. 9 is a detailed view of the needle pull-out portion according to the third embodiment, and FIG. 10 is a sectional view taken along the line AA of FIG.
The difference from FIG. 4 is that, as shown in FIG. 11, the rotating roller 16 and the pressing roller 17 can be moved in the axial direction opposite to each other, and the holding needle is pulled out while rotating. It is the point which did so.

The shaft 16a of the rotary roller 16 is extended in both directions, and the driving side of the motor 25 has a thicker gear 16b.
And a gear 70 having teeth in the direction perpendicular to the gear 16b and transmitting force in the axial direction. Similarly, the shaft 17a of the rotary roller 17 extends in both directions, and the same type of gear 71 is provided on the same side as the gear 70.

A forward / reverse rotatable motor 73 is provided so that the rotating roller 16 and the pressure roller 17 can move in the opposite direction at the same speed and the same distance, and a pinion gear fixed to the motor shaft. The gear 74 is rotated via the gear 73, and the gear 75 having the same number of teeth as the gear 74 is rotated by meshing with the gear 74. The gears 74 and 75 are coaxially meshed with the gears 70 and 71, respectively. 77 is provided.

Further, a light shielding plate 78 for detecting a moving range is fixed to the roller shaft of the pressure roller 17, and a pair of optical sensors 79 and 80 detect the light shielding plate 78 to form a motor. TA7
Invert 3

FIG. 12 is a control block circuit diagram of the needle pull-out section shown in FIG. 9, and is added to FIG. Optical sensor 7
Outputs S1 and S2 of 9, 80 are JK flip-flops 8
The output terminal Q is connected to an input terminal of a motor drive circuit 82 as a rotation direction switching signal of the motor 73. Mo
The output terminal of the motor drive circuit 82 can switch the direction of the current flowing through the motor 73 as a switching signal for the four switching elements 83 to 86 for driving the motor 73.

The resistor 87 detects the value of the current flowing through the motor 73. The resistor 87 is smoothed by a filter circuit including a resistor 88 and a capacitor 89, and is fed back to the motor drive circuit 82 to provide a substantially constant torque. Is controlled to issue

FIG. 13 is a time chart of the needle pull-out portion shown in FIG. 9, wherein (A) to (E) show the outputs S1 and S2 of the optical sensors 79 and 80, the output Q of the F / F 81, and the switching element, respectively. The switching signals Q1 and Q4 of the switching elements 83 and 84 and the switching signals Q3 and Q2 of the switching elements 85 and 86 are shown.

Next, the operation will be described with reference to FIG. Insert the syringe 50 into the insertion opening of the insertion plate 12,
When the lever-4b of the microswitch 4a is pressed down on the insertion plate 12 at time t1, a drive signal is input to the motor drive circuit 82 as shown in FIG. The motor drive circuit 82 outputs a switching signal Q for the switching elements 85 and 86.
3, Q2 is turned on and the motor 73 is turned clockwise (hereinafter C
(Referred to as W).

When the motor 73 rotates in the CW direction, the gear 74 meshing with the pinion gear 73a moves counterclockwise (hereinafter referred to as CC).
W) and the gear 75 meshing with the gear 74 is C
The gears 76 and 77 coaxially rotate to W and CCW and CW.

Therefore, the gear 70 meshing with the gear 76 and the rotating roller 16 coaxially fixed move in the direction of arrow J as shown in FIG.
1 and the pressure roller 17 fixed coaxially move in the direction of arrow K, and the injection needle 7 held between the rotary roller 16 and the pressure roller 17 is moved in the direction of arrow M by the needle base 7a. Torsion.

During this time, since the motor 20 is also driven by the drive signal, the rotation roller 16 and the pressure roller 1 are driven.
7 rotate in opposite directions to pull the injection needle 7 in the direction of arrow G.

When the optical sensor 79 detects the light shielding plate 78 at time t2, the output S1 is turned on and the output Q of the F / F 81 is turned on.
Is turned on, the switching signals Q1, Q4 of the switching elements 83, 84 are turned on, and the switching elements 85, 86
Switching signals Q3 and Q2 are turned off, and motor 73 is turned off.
The current starts flowing to rotate to W.

When the motor 73 rotates in the CCW direction, the operation is reversed, and the rotation of the rotating roller 16 and the pressing roller 17 are reversed.
The injection needle 7 sandwiched between the two is subjected to a torsional force in the direction of arrow N by the needle base 7a.

When the optical sensor 80 detects the light shielding plate 78 at time t3, the output S2 is turned on and the output Q of the F / F 81 is turned on.
Is turned off, the switching signals Q3 and Q2 of the switching elements 85 and 86 are turned on, and the switching elements 83 and 84 are turned on.
Switching signals Q1 and Q4 are turned off and the motor 73
Start applying current to rotate.

When the motor 73 rotates in the CW direction, the operation is reversed, and the injection needle 7 held between the rotating roller 16 and the pressure roller 17 is again moved to the arrow M by the needle base 7a. Subject to torsional force in the direction. Thereafter, while repeating the above, the needle tube 7b is pulled out from the needle base 7a of the injection needle 7.

According to the third embodiment, in addition to the rotation of the rotary roller in the direction in which the needle tube is pulled out, the rotary roller and the pressing roller can move in the axial direction opposite to each other. Therefore, there is an effect that the needle tube can be more easily pulled out of the needle base as compared with the first embodiment.

Further, since the rotating roller and the pressure roller move in the axial direction opposite to each other and pull out the needle tube of the injection needle,
Since the rotary roller and the pressure roller are constantly pulled out of the needle tube of the injection needle at a different position, the wear of the roller surface becomes the entire roller surface, and the rotary roller and the pressure roller are worn. This also has the effect of extending the life of the battery.

Fourth Embodiment The injection needle processing apparatus according to the fourth embodiment differs from the first embodiment in the shape of the coil of the heating section.

FIG. 14 is an external view showing a coil shape of a heating unit according to the fourth embodiment, and FIG. 15 is a front view of a wing needle for drip injection. As shown in FIG. 15, the wing needle 90 for drip injection has a long connection with a needle tube 90b on a plastic needle base 90a. The coil 91 of the heating unit is
As shown in FIG. 7, the shape is such that the entire joint can be covered.

FIG. 16 is a cross-sectional view of the insertion plate and the heating section, and FIG. 17 is a cross-sectional view of the insertion plate and the heating section which differ from FIG. 16 by 90 °. The insert plate 92 has a shape in which the insert plate 12 shown in FIG. 1 is crushed from the side, as shown in FIGS.

The operation is the same as that of the first embodiment, and the description is omitted.

According to the fourth embodiment, the coil of the heating section is formed so as to cover the entire joint of the needle base of the injection needle, so that the wing-shaped plastic part is attached to the needle base like a wing needle for drip injection. Even if there is, heating can be performed, and the needle tube can be easily pulled out.

In the first to fourth embodiments, the needle tube of the injection needle is held between the rotating roller and the pressure roller, and the needle tube is pulled out of the heated plastic of the needle base. As shown in FIG. 18, the distal ends of the symmetrical brackets 100 and 101 having elasticity are brought into contact with each other, and
3 and insert the needle tube 7b (90b) into the needle tube after heating.
(90b) may be pulled out, the lever 104 may be rotated in the direction of arrow P to push and spread the contact portion 103 of the brackets 100 and 101, and the needle tube 7b (90b) may be dropped into the dust box. In this case, no motor is required.

[0070]

Since the present invention is configured as described above, it has the following effects. The needle base of the used injection needle is self-heated by electromagnetic induction and the needle tube is pulled out from the plastic needle base and processed, so not only general used needles with only one sharp end but also blood collection A used injection needle having sharp sharp ends such as an injection needle can be completely processed.

Further, since the plastic needle base and the metal needle tube can be separated and discarded at the material level, it is possible to recycle.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an injection needle processing device according to a first embodiment.

FIG. 2 is a detailed view of a coil of a heating unit.

FIG. 3 is an explanatory diagram of self-heating due to electromagnetic induction.

FIG. 4 is a detailed view of a needle pull-out section.

FIG. 5 is a control block circuit diagram of the injection needle processing device shown in FIG. 1;

FIG. 6 is a time chart for explaining the operation of the injection needle processing device shown in FIG. 1;

FIG. 7 is an exploded perspective view of a heating unit according to the second embodiment.

FIG. 8 is an explanatory diagram when a syringe needle is heated.

FIG. 9 is a detailed view of a needle pull-out section according to the third embodiment.

10 is a sectional view taken along the line AA of FIG. 9;

FIG. 11 is an explanatory diagram of a needle pulling-out operation according to a third embodiment.

12 is a control block circuit diagram of the needle pull-out unit shown in FIG.

FIG. 13 is a time chart of the needle pull-out section shown in FIG. 9;

FIG. 14 is an external view showing a coil shape of a heating unit according to a fourth embodiment.

FIG. 15 is a front view of a winged needle.

FIG. 16 is a sectional view of an insertion plate and a heating unit.

FIG. 17 is a cross-sectional view different from FIG. 16 by 90 °.

FIG. 18 is an explanatory view showing a modification of the needle pull-out section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Injection needle processing apparatus 2 Heating part 3 Needle base guide part 4 Heating position detection part 5 Needle withdrawal part 6 Needle accumulation part 7 Injection needle 7a, 90a Needle base 7b, 90b Needle tube

Claims (9)

[Claims] An injection needle processing apparatus for processing a used injection needle having a plastic needle base in a needle tube, wherein a heating coil for self-heating the needle tube by electromagnetic induction, and an alternating current is supplied to the coil. A heating drive unit, a needle withdrawal unit that clamps the needle tube of the injection needle and withdraws the needle tube from the needle base, and a needle storage unit that stores the needle tube withdrawn from the needle base in a dust box. Injection needle processing device. 2. An injection needle processing apparatus for processing a used injection needle having a plastic needle base in a needle tube, wherein a heating coil for self-heating the needle tube of the needle base by electromagnetic induction; A sensor that detects that the position has been reached, a drive signal generator that outputs a drive signal based on the detection of the sensor, and a heating driver that supplies an alternating current to the coil based on the drive signal. A needle pulling portion for holding the needle tube of the injection needle between a pair of rollers, rotating the roller based on the drive signal to pull out the needle tube from the needle base, and a needle box pulled out of the needle base into a dust box. An injection needle processing device, comprising: a needle storage unit for storing. 3. The coil according to claim 1, wherein an enameled wire is wound around a bobbin provided with a hole for inserting the needle tube in the center.
The injection needle processing device according to claim 2 or 3. 4. A ferrimagnetic core for covering the outside and the inside of the coil, and the inside of the coil is formed so that a gap exists between the needle base and the inside core when the magnetic flux is generated. The injection needle processing device according to claim 3, wherein a cutout portion is provided in the core. 5. The injection needle processing device according to claim 1, wherein the coil has a coil surface formed by winding an enameled wire and deforming into a V-shape according to the wing-shaped needle base. 6. The injection needle according to claim 2, wherein an enameled wire serving as a winding bundle of the coil is bundled and wound with a wire diameter smaller than a needle tube diameter of the injection needle. Processing equipment. 7. The needle pull-out section rotates only one roller based on the drive signal, and presses the other roller against one roller with a constant force to hold the needle tube held therebetween. 3. The injection needle processing device according to claim 2, wherein the device is pulled out from the needle base. 8. The device according to claim 7, further comprising a torsion generating drive unit for moving one of the rollers and the other roller in opposite directions in the axial direction to generate a twist in the pinched needle tube. Injection needle processing device. 9. The driving signal generating unit has an upper limit on a driving time, and when the driving time exceeds the upper limit, a driving signal for driving the heating driving unit and the needle pulling unit is forcibly stopped. Needle processing equipment.