Author: claimsbot

1. An apparatus for sensing relative positions of mechanically coupled devices comprising:
a magnetically activated switch including a first switch end and second switch end, the first switch end being electrically connected to an incoming electrical lead and the second switch end being electrically connected to an outgoing electrical lead, the magnetically activated switch being adapted to control a flow of current through the leads depending on whether a sufficient flux is flowing through the magnetically activated switch;
a first switch end flux conductor positioned adjacent to the first switch end;
a second switch end flux conductor positioned adjacent to the second switch end;
a permanent magnet including a first magnetic end and a second magnetic end;
a first magnetic end flux conductor positioned adjacent to the first magnetic end; and
a second magnetic end flux conductor positioned adjacent to the second magnetic end, the first magnetic end flux conductor being separated from the first switch end flux conductor by a first gap and the second magnetic end flux conductor being separated from the second switch end flux conductor by a second gap such that when reluctance associated with the first and second gaps is low, a flux flows in a series path from the first magnetic end to the second magnetic end, the flux flows from the first magnetic end through the first magnetic end flux conductor and the first switch end flux conductor, through the magnetically activated switch, and through the second switch end flux conductor and the second magnetic end flux conductor to the second magnetic end.
2. The apparatus of claim 1, wherein the magnetically activated switch is adapted to couple the first switch end and the second switch end when said sufficient flux is flowing through the magnetically activated switch, and is adapted to decouple the first switch end and the second switch end when said sufficient flux is not flowing through the magnetically activated switch.
3. The apparatus of claim 1, wherein the magnetically activated switch is adapted to couple the first switch end and the second switch end when said sufficient flux is not flowing through the magnetically activated switch, and is adapted to decouple the first switch end and the second switch end when said sufficient flux is flowing through the magnetically activated switch.
4. The apparatus of claim 1, wherein the permanent magnet is mounted at a non-actuating distance from the magnetically activated switch.
5. The apparatus of claim 1, comprising a flux shunt repositionable to redirect flux flow from the permanent magnet to reduce or terminate flux flow through the magnetically activated switch.
6. The apparatus of claim 1, wherein the permanent magnet, first magnetic end flux conductor and second magnetic end flux conductor are connected into a magnet assembly adapted to allow movement of the magnet assembly to increase and to decrease the first gap and the second gap.
7. The apparatus of claim 6, further including a flux shunt positioned such that the magnet assembly may move closer to the flux shunt and away from the first switch end flux conductor and the second switch end flux conductor thereby diverting flux flow to the magnetically activated switch.
8. The apparatus of claim 7, wherein the apparatus is integrated into a helmet mount for night vision goggles such that the apparatus may sense the relative position of the helmet mount and thereby control the operation of the night vision goggles.
9. The apparatus of claim 1, further including an additional pair of flux conductors positioned within the first gap and the second gap, the additional pair of flux conductors being positioned adjacent to the first magnetic end flux conductor and the second magnetic end flux conductor and being positioned adjacent to the first switch end flux conductor and the second switch end flux conductor thereby implementing the logical AND function in accordance with certain physical alignments.
10. The apparatus of claim 1, further including a further set of flux conductors affixed to the permanent magnet and magnetically activated switch separated by a further set of air gaps, thereby implementing the logical OR function of certain physical alignments by addition of other additional flux paths to conduct flux from the permanent magnet to the magnetically activated switch.
11. A method for sensing relative positions of mechanically coupled devices using a magnetically actuated switch, the method comprising:
locating a magnet at a distance from a magnetically actuated switch, the magnet including a first magnet end and a second magnet end; and
mounting a plurality of magnetic flux conductors in series between the magnet and the magnetically actuated switch, the plurality of magnetic flux conductors including a first set of flux conductors for forming a first series path and a second set of flux conductors for forming a second series path, the first series path for allowing a flux to flow from the first magnet end to the magnetically actuated switch, the second series path for allowing said flux to return from the magnetically actuated switch to the second magnet end in a single series path from the first magnet end through the first set of flux conductors, through the magnetically actuated switch, and through the second set of flux conductors to the second magnet end;
wherein the magnetic flux conductors are mounted to coupled devices to reflect positions of the coupled devices so as to allow the coupled devices to change their relative position; and
wherein changing the relative positions of the coupled devices changes a flow of said flux from the first magnet end through the first series path to the magnetically actuated switch and through the second series path to the second magnet end.
12. The method of claim 11, further including providing gaps between the flux conductors, the gaps being capable of conducting flux from the magnet to the magnetically actuated switch in certain positions and being incapable of conducting flux in other positions.
13. The method of claim 12, further including placing a flux shunt in position to shunt flux flow from the magnet to the magnetically actuated switch when the mechanically coupled devices are in certain relative positions.
14. The method of claim 13, further including additional flux conductors to implement the logical AND function of certain physical alignments when the flux conductors are aligned to conduct flux flow from the magnet to the magnetically actuated switch.
15. The method of claim 13, further using additional flux conductors to implement the logical OR function by adding other additional flux paths to conduct flux flow from the magnet to the magnetically actuated switch.
16. An apparatus for sensing position comprising:
a magnet assembly for generating a magnetic field, the magnet assembly including:
a magnet having a first pole and a second pole;
a first flux conductor adjacent the first pole;
a second flux conductor adjacent the second pole;

a switch assembly, the switch assembly being operable in the presence of a magnetic field, the switch assembly including:
a third flux conductor adjacent the switch assembly and positioned in series with the first flux conductor at a first predetermined location;
a fourth flux conductor adjacent the switch assembly and positioned in series with the second flux conductor at a second predetermined location;

a first gap disposed between the first and third flux conductors;
a second gap disposed between the second and fourth flux conductors;
wherein the first flux conductor and the third flux conductor form a first path for a flux to flow from the magnet to the switch assembly, and the second flux conductor and the fourth flux conductor form a second path for said flux to return to the magnet; and
wherein one of the magnet assembly and the switch assembly is movable with respect to the other so that the switch assembly operates if and only if the flux conductors are aligned in series such that the first path and the second path are aligned in a single series.
17. The apparatus of claim 16 wherein the first gap and the second gap are air gaps.
18. The apparatus of claim 16 wherein the first and second flux conductors comprise a high permeability material.
19. The apparatus of claim 16 wherein the third and fourth flux conductors comprise a high permeability material.
20. The apparatus of claim 16 further comprising a flux shunt positioned to be aligned with the third flux conductor and the fourth flux conductor at a predetermined location, wherein the flux shunt diverts the magnetic field to disable the switch.
21. The apparatus of claim 20 wherein the flux shunt comprises a high permeability material.
22. The apparatus of claim 16 further comprising a fifth flux conductor in series with the first flux conductor and the third flux conductor and a sixth flux conductor in series with the second flux conductor and the fourth flux conductor.
23. The apparatus of claim 22 further comprising a third gap between the first flux conductor and the third flux conductor and a fourth gap between the second flux conductor and the fourth flux conductor.
24. an apparatus according claim 1, further comprising:
a plurality of movable members mounted to be repositionable to control actuation of the magnetically actuated switch.
25. The apparatus of claim 24, wherein the plurality of movable members comprise a first set of movable members and a second set of movable members for forming a single series path between the magnet and the magnetically actuated switch, and
the magnetically actuated switch is actuated if and only if both the first set of movable members and the second set of movable members are aligned in series between the magnet and the magnetically actuated switch.
26. The apparatus of claim 24, wherein the plurality of movable members comprise a first set of movable members and a second set of movable members for forming dual series paths between the magnet and the magnetically actuated switch, and
the magnetically actuated switch is actuated if either the first set of movable members or the second set of movable members is aligned in series between the magnet and the magnetically actuated switch.
27. The apparatus of claim 24, wherein:
the magnetically actuated switch has a first switch end and a second switch end through which current can flow when the first switch end and the second switch end are coupled together, and
the magnetically actuated switch is adapted to decouple the first switch end and the second switch end when a sufficient flux is flowing through the magnetically actuated switch, and is adapted to couple the first switch end and the second switch end when said sufficient flux is not flowing through the magnetically actuated switch.
28. The apparatus of claim 24, wherein the plurality of members comprise additional flux conductors repositionable to selectively conduct flux between the magnet and the magnetically actuated switch.
29. The apparatus of claim 24, wherein the plurality of members comprise at least one flux shunt repositionable to selectively conduct flux between the magnet and the magnetically actuated switch.
30. The apparatus of claim 24, wherein the plurality of members are configured to reposition the flux conductors.
31. The apparatus of claim 24, wherein at least one of the plurality of members impart reluctance to a path to reduce flux flow between the magnet and the magnetically actuated switch.
32. The apparatus of claim 24, wherein the magnetically actuated switch is a single pole double throw switch configured to implement a NOT function.
33. The apparatus of claim 24, wherein the plurality of members are repositionable to allow flux to flow through one of a plurality of paths between the magnet and the magnetically actuated switch to implement an OR function.
34. The apparatus of claim 24, wherein the plurality of members are repositionable to allow flux to flow between the magnet and the magnetically actuated switch through all of the members to implement an AND function.
35. The apparatus of claim 1, wherein the permanent magnet, first magnetic end flux conductor, and second magnetic end flux conductor are connected in a rotatable magnet assembly adapted to allow the first magnetic end flux conductor and the second magnetic end flux conductor to rotate in unison into and out of alignment with the first switch end flux conductor and the second switch end flux conductor, respectively, to decrease and to increase the first gap and the second gap.
36. The apparatus of claim 35, further comprising one or more flux shunts positioned along a path of rotation of the rotatable magnet assembly adjacent to the first switch end flux conductor andor the second switch end flux conductor.
37. The apparatus of claim 1, wherein:
the first switch end flux conductor is comprised of a lower first switch end flux conductor and an upper first switch end flux conductor, a third gap being between the lower first switch end flux conductor and the upper first switch end flux conductor;
the second switch end flux conductor is comprised of a lower second switch end flux conductor and an upper second switch end flux conductor, a fourth gap being between the lower second switch end flux conductor and the upper second switch end flux conductor;
the permanent magnet, first magnetic end flux conductor, and second magnetic end flux conductor are connected in a first rotatable assembly adapted to allow the first magnetic end flux conductor and the second magnetic end flux conductor to rotate in unison into and out of alignment with the lower first switch end flux conductor and the lower second switch end flux conductor, respectively, to decrease and to increase the first gap and the second gap; and
the lower first switch end flux conductor and the lower second switch end flux conductor are connected in a second rotatable assembly adapted to allow the lower first switch end flux conductor and the lower second switch end flux conductor to rotate in unison into and out of alignment with the first magnetic end flux conductor and the second magnetic end flux conductor, respectively, to decrease and to increase the first gap and the second gap, and to rotate in unison into and out of alignment with the upper first switch end flux conductor and the upper second switch end flux conductor, respectively, to decrease and to increase the third gap and the fourth gap.
38. The apparatus of claim 37, wherein the first rotatable assembly is rotatable about a first axis and the second rotatable assembly is rotatable about a second axis, the first axis and the second axis being perpendicular.
39. The apparatus of claim 38, further comprising:
a first flux shunt positioned along a path of rotation of the first rotatable assembly about the first axis adjacent to the lower first switch end flux conductor andor the lower second switch end flux conductor; and
a second flux shunt positioned along a path of rotation of the second rotatable assembly about the second axis adjacent to the upper first switch end flux conductor andor upper second switch end flux conductor.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

What is claimed is:

1. A display controller capable of controlling both interlace image data and noninterlace image data, comprising:
an input terminal for inputting interlace image data;
an output terminal for outputting interlace image data; and
a connecting circuit for connecting said input and output terminals and transferring interlace image data as interlace image data.
2. A controller according to claim 1, wherein said connecting circuit comprises a buffer circuit for storing input interlace image data from said input terminal, and image data is output from said buffer circuit to said output terminal.
3. A controller according to claim 1, wherein said display controller is integrated into one chip.
4. A controller according to claim 2, wherein said display controller is integrated into one chip.
5. An information processor comprising:
an input unit for inputting encoded image data;
a decoding unit for decoding the encoded image data;
a display controller for processing the image data decoded by said decoding unit; and
an output unit for outputting the image data processed by said display controller to a display unit,
wherein said display controller comprises
an input terminal for inputting interlace image data,
an output terminal for outputting interlace image data, and
a connecting circuit for connecting said input and output terminals and transferring interlace image data as interlace image data.
6. A processor according to claim 5, wherein said connecting circuit comprises a buffer circuit for storing input interlace image data from said input terminal, and image data is output from said buffer circuit to said output terminal.
7. A processor according to claim 5, further comprising a television signal generator for generating and outputting a television signal from the image data processed by said display controller.
8. A processor according to claim 6, further comprising a television signal generator for generating and outputting a television signal from the image data processed by said display controller.
9. A display controller comprising:
an input terminal for inputting interlace image data;
a first output terminal for outputting interlace image data;
a connecting circuit for connecting said input terminal and said first output terminal and transferring interlace image data as interlace image data;
a converter for converting the input interlace image data from said input terminal into noninterlace image data; and
a second output terminal for outputting the noninterlace image data obtained by said converter.
10. A controller according to claim 9, wherein said display controller is integrated into one chip.

1. An ocular light stimulus apparatus for providing localized light stimulus to a retina of an ocular fundus under examination to perform biological examination through use of a bioelectrical signal from the retina, comprising:
a stimulus light source for emitting stimulus light to provide the localized light stimulus to the fundus under examination;
a movement mechanism for moving the stimulus light source to change a projection position of the stimulus light on the fundus; and
a stimulus light size changing mechanism for changing a size of the stimulus light from the stimulus light source.
2. An ocular light stimulus apparatus according to claim 1, wherein the stimulus light size changing mechanism moves in conjunction with movement of said stimulus light source.
3. An ocular light stimulus apparatus according to claim 1, wherein the stimulus light size changing mechanism includes an indicator panel having a plurality of openings with different diameters for allowing the stimulus light to pass through, the indicator panel being rotated about an axis parallel to an optical axis of a stimulus light projection optical system in a plane perpendicular to the optical axis in order to move one of the openings to a position facing the stimulus light source.
4. An ocular light stimulus apparatus according to claim 3, wherein the indicator panel moves together with the stimulus light source on a plane perpendicular to the optical axis of the stimulus light projection optical system.
5. An ocular light stimulus apparatus according to claim 3, wherein the indicator panel is rotated by an electric motor.
6. An ocular light stimulus apparatus according to claim 3, wherein the indicator panel and the stimulus light source are arranged so as to be unable to rotate about the optical axis or an axis parallel thereto.
7. An ocular light stimulus apparatus according to claim 1, wherein size information of the stimulus light that passes through a selected opening is displayed on a monitor for displaying alignment information.
8. An ocular light stimulus apparatus for providing localized light stimulus to a retina of an ocular fundus under examination to perform biological examination through use of a bioelectrical signal from the retina, comprising:
a stimulus light source for emitting stimulus light to provide the localized light stimulus to the fundus under examination;
a movement mechanism for moving the stimulus light source to change a projection position of the stimulus light on the fundus;
an operating member operated to act on the movement mechanism to change the projection position of the stimulus light; and
a fixing member for fixing the operating member.
9. An ocular light stimulus apparatus according to claim 8, wherein the fixing member is configured as a cap having a through-hole in a center part thereof, the operating member being fixed by inserting the operating member in the through-hole of the cap and fitting the cap on a stimulus light source unit in which the stimulus light source is housed.
10. An ocular light stimulus apparatus according to claim 8, wherein the stimulus light source is positioned on the optical axis of the stimulus light projection optical system when the operating member is fixed.
11. An ocular light stimulus apparatus according to claim 10, wherein a plurality of internal fixation lamps is provided on a plane perpendicular to an optical axis of an optical system that is branched from the stimulus light projection optical system, and when the operating member is fixed, an internal fixation lamp positioned on the optical axis of the branched optical system is selected and turned on.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A safety syringe, more particularly, referring to a safety structure of the barrel comprising the parts of:
a barrel possessing a rubber stopper with a shallow disk indention at the rear end, which is positioned in the interior, the barrel having a structure of annular check rib formed adjacent to the rear end in inner surface of the hollow barrel and a needle holder, the barrel having the needle holder engaging with a needle body infused with the needle cannula; and
an actuator comprising of an electromagnet and a magnet opposite to one another with unlike poles attraction, the actuator inserted from the rear open end into the interior of the barrel, the actuator having the magnet attached on the front surface of the actuator mating with the circular indention on the rear surface of the rubber stopper, the actuator compelling the rubber stopper to move back or forth by means of switching the pole of electromagnet.
2. The safety syringe according to claim 1, wherein the magnet is positioned directly in the rear side of the rubber stopper.
3. The safety syringe according to claim 1, wherein the circular check plate with the through channel in the center is formed as a part of the needle holder and the spear-like barb at the proximal end of the rubber stopper is surrounded with the rubber wrap.
4. The safety syringe according to claim 1, wherein the circular check plate and the through channel are removed in the needle holder.
5. The safety syringe according to claim 1, wherein the needle holder is embedded in the barrel, the locking lumen is formed inside the needle holder, the through channel formed to communicate the locking lumen with the interior of the barrel, an annular check rib formed in abutment to the rear end of the needle holder inside the barrel.
6. A safety syringe, more particularly, refers to a safety structure including:
a needle body having the needle cannula fused at the front end; and
a cap having a shield base, a needle passageway through the shield base, a nozzle-like circumferential check plate formed behind the needle passageway of the shield base, and a retractable elastomeric tube, the cap using the retractable elastomeric tube to connect the rear end of the shield base with the retaining bases of needle holder, which has a connection tab in linkage to a buttoning check plate, the cap shielding the needle cannula inside, the cap having the buttoning check plate to fasten it in the rear or front edge of the needle holder.
7. The safety syringe according to claim 6, wherein the nozzle-like circumferential check plate behind the shield base with the needle passageway is replaced, a button structure for buttoning and locking purpose formed on the outer surface of the shield base and the top surface of the buttoning check plate, an upstanding seat with a needle tip trapping pit at its front end surface formed as a part of the buttoning check plate.
8. The safety syringe according to claim 6, wherein the nozzle-like circumferential check plate behind the shield base and the needle passageway is replaced, a button structure for buttoning and locking purpose formed on the outer surface and the top of a buttoning rectangular space of the shield base where the buttoning check plate is mating with, an upstanding seat with a needle tip trapping pit at its front end surface is formed as a part of the buttoning check plate.
9. The safety syringe according to claim 6, wherein the retractable elastomeric tube is replaced by two lamented leaf springs positioned diametrically opposite to one another in the outer side of needle cannula.
10. The safety syringe according to claim 9, wherein the needle cannula is positioned within a sequence of guided holes on a specifically designed lamented leaf spring.
11. The safety syringe according to claim 6, wherein the shield base is miniaturized and mounted in the outer edge of the needle body, the specifically designed lamented leaf spring compressed to fit the space formed between the shield base and the needle holder, the exterior of the needle cannula covered by a cap.
12. A safety syringe comprising:
a needle body with the fused needle cannula;
a cap with a needle passageway at the front end, a connection tab being the connection to the front cap and the cap, a inner projection bung inside the interior of the front cap, two opposite guided slots in the exterior of the cap, a rear and a front end containing cut and the anchor cut of the guided slot, a plurality of V-shape check ledges between the anchor cut and the rear end containing cut; and
a barrel having two sliding rods with ear tab in both sides of the barrel.
13. The safety syringe according to claim 12, wherein the guided sliding rods and the ear tabs diametrically opposite to one another are formed in the interior of the cap, two opposite guided slots formed in the outer side of the barrel of the syringe, two containing cuts are formed at the end of the guided slot, a plurality of ledges designed between the containing cut and guided slot, a plurality of V-shape check ledges designed between the containing cut and the anchor cut at the rear end of the guided slot.
14. The safety syringe according to claim 12, wherein the guided slot of the cap, the front cap, and the ear tab in the outer side of the barrel are replaced, two spindles formed diametrically opposite to each other in the circumference of the needle holder, a positioning bump which is in shape of a barbed acute angle head in the direction towards the axis structured in one spindle, a bias angle named after the angle between the side of positioning bump and the spindle side near the syringe, an adjusting bump in the shape of obtuse angle head structured in the other spindle, two mounting holes opposite to each other in the rear portion of the cap arranged corresponding to these two spindles, an opening cutout structured between two mounting holes, a nozzle-like circumferential check plate made behind the needle passageway.
15. The safety syringe according to claim 14, wherein the foregoing spindles positioned in the needle body and mounting holes are applied in the blood collection system, the infusion set needle, the arterial venous fistula needle and the butterfly injection needle.
16. The safety syringe according to claim 14, wherein the positioning bump and the adjusting bump are replaced in this design, a rectangular anchor cut connected to the mounting hole, a multiple of the check parts formed between each mounting holes and its rectangular anchor cut, a plurality of angle positioning broached contours used to position the required angle.
17. The safety syringe according to claim 16, wherein the foregoing spindles in the needle body, mounting holes, rectangular anchor cuts, and angle positioning cuts are applied in the blood collection system, the infusion set needle, the arterial venous fistula needle and the butterfly injection needle.
18. The safety syringe according to claim 12, wherein the front cap, the guided slot, and the guided sliding rod are replaced, the upstanding notch connector located between the radically inner side of the cross sliding adjustor and the side surface of the needle body, a plurality of positioning slots arranged longitudinally in line in the outer wall of the cap, a connection groove used as the connection among these positioning slots, the first positioning slot from the rear end of the cap directly connected to the needle containing cavityhousing inside the cap, a nozzle-like circumferential check plate structured behind the needle passageway in the cap, the exterior of the cap 2 and the needle containing cavity designed eccentric.
19. The safety syringe according to claim 18, wherein the upstanding notch connector is removed from the needle body, but are formed on the exterior of a washer which is mounted between the needle body and the barrel.
20. The safety syringe according to claim 18, wherein a positioning hole is in the side surface of the needle body, a positioning adjustor used to replace the upstanding notch connector, an anchor recess with a plurality of annual check plates around the passing opening being at the radially inner end, a positioning cavity being in the middle, and a transition cavity being at the radially outer end, a positioning rod with a positioning ball corresponding to those recess and cavities connected to the radially inner side of the positioning adjustor, a check block formed in the one or both sides of the positioning adjustor.
21. A safety syringe, more particularly, refers to a safety structure of the barrel including:
a barrel with a needle seat inside the front portion of the barrel, which has an annular check rib behind the needle seat;
a piston rod with a linear elastomer groove at the front end; and
a linear elastomer connected around the linear elastomer groove at one end and connected to the rear side of the needle holder at the other end.
22. The safety syringe according to claim 21, wherein the linear elastomer groove is rearranged to the rear side of the needle seat and with the direct connection to the front end of the piston rod.
23. The safety syringe according to claim 21, wherein a linkage rod is connected to a linear elastomer affixed to the front portion of the piston rod and is directly formed at the rear end of the needle holder in order to replace the linear elastomer groove.
24. The safety syringe according to claim 23, wherein the linkage rod is designed through the piston rod in connection with a linear elastomer, which is linking to the front surface of a block at the other end.
25. The safety syringe according to claim 21, wherein the linkage rod is directly connected with the block.
26. The safety syringe according to claim 21, wherein a spear-like barb surrounded by a rubber wrap and a locking lumen formed inside the needle holder, which connects to the interior cavity with the through channel in the front portion of the needle holder is proposed to replace the linear elastomer groove.
27. A safety syringe, more particularly, refers to the safety structure of the syringe, including:
a barrel, which has a needle holder mating with the needle body in the front portion of the barrel and an annular locking plate with a through channel; and
a piston rod, which seats into the barrel from the barrel’s proximal end, has a spear-like barb surrounding with the rubber wrap and a plurality of leakage holes around the spear-like barb in the piston rod.
28. The safety syringe according to claim 27, wherein the through channel and the annular locking plate are removed from the needle holder.
29. The safety syringe according to claim 27, wherein two fracture notch is sculptured in the same side of the opposite wall to replace the annular locking plate inside the needle holder, spear-like barb and the leakage holes in the piston rod.
30. The safety syringe according to claim 27, wherein a plurality of annular fracture indentions in the interior of the needle holder are used instead of the annular locking plate inside the needle holder, spear-like barb and the leakage holes of the piston rod.
31. The safety syringe according to claim 29, wherein the same structure of the fracture notch is formed with the needle body, the present invention of safety syringe also applied in the blood collection system, the infusion set needle, the arterial venous fistula needle, and the butterfly injection needle.
32. The safety syringe according to claim 29, wherein the structure of the annular fracture indentions is applied in the outer face of needle body, the blood collection system, the infusion set needle, the arterial venous fistula needle, and the butterfly injection needle.
33. The safety syringe according to claim 27, wherein a plurality of circumferential U-shape cuts in the exterior of the needle holder are proposed instead of the annular locking plate inside the needle holder, spear-like barb and the leakage holes of the piston rod.
34. The safety syringe according to claim 33, wherein the structure of the annular fracture indentions is applied in the outer surface of the needle body, the blood collection system, the infusion set needle, the arterial venous fistula needle, and the butterfly injection needle.
35. The safety syringe according to claim 21, wherein a keyway through hole formed in the front portion of the side wall of the barrel, a keyway hole formed in the position of the connection mount of the needle holder corresponding to the keyway through hole, and a pin key inserted through the keyway through hole and keyway hole to engage the connection mount of the needle holder with the front portion of the barrel are proposed instead of the annular check plate formed as a part of inner surface of the barrel adjacent to the connection mount of the needle holder.
36. The safety syringe according to claim 35, wherein the keyway through hole, the keyway hole and the pin key are applied in the blood collection system, the infusion set needle, the arterial venous fistula needle, and the butterfly injection needle.
37. The safety syringe according to claim 21, wherein a sticker tape positioned between the inner surface of the barrel and the outer surface of the needle holder for the purpose of engagement is designed in place of the annular check plate formed as a part of inner surface of the barrel adjacent to the connection mount of the needle holder, the sticker tape having an appropriate piece of tape extended outside the seam between the inner surface of the barrel and the outer surface of the needle holder.
38. The safety syringe according to claim 37, wherein the sticker tape is implemented in the blood collection system, the infusion set needle, the arterial venous fistula needle, and the butterfly injection needle.