JP5117130B2 - Syringe transfer device - Google Patents

Description

  The present invention provides a syringe for a syringe comprising a distal end portion to which an injection needle is to be attached, a central cylindrical portion, and a rear end portion extending radially outward from the central cylindrical portion in a vertically downward gas flow. The present invention relates to an apparatus for transporting a sheet while holding a front end part below a rear end part.

  In a state where the syringe for injection comprising a tip portion to which the injection needle is to be attached, a center tube portion, and a rear end portion extending radially outward from the center tube portion is held below the rear end portion, In a conventional apparatus for transporting, the weight of the syringe is obtained by accommodating the central cylindrical portion in a groove extending in the transport direction, and further contacting the rear end portion on a support surface extending perpendicularly from the upper end of the groove to the depth direction of the groove. The syringe guided along the groove is slid relative to the groove and the support surface by the conveyance member that contacts the central cylinder portion and biases the central cylinder portion in the conveyance direction. Transport in the direction.

  An object of the present invention is to transport a syringe while minimizing friction against other members of the syringe. Furthermore, when the syringe is transported, it is possible to effectively prevent foreign matter from entering the internal hole (which can accommodate the injectable drug) that penetrates the syringe in the longitudinal direction of the syringe so that it can communicate with the injection needle. It is.

Means for solving the problems and the effects

According to the present invention, the syringe syringe includes a tip portion to which the injection needle is to be attached, a center tube portion, and a rear end portion extending radially outward from the center tube portion in a vertically downward gas flow. The device for holding and transporting
A weight holding plane for contacting the rear end portion to receive the weight of the syringe and preventing movement of the syringe in the longitudinal direction of the syringe, and a longitudinal direction of the syringe extending in a direction perpendicular to the weight holding plane and contacting the syringe A holding member comprising: a groove for preventing movement of the syringe in a direction perpendicular to the groove, and one of the longitudinal ends of the groove is open to the weight holding surface and accommodates the central cylindrical portion;
An opening / closing member that is movable relative to the holding member in a direction parallel to the longitudinal direction of the groove, and a part of the opening / closing member prevents the syringe from being detached from the groove when the syringe is held in the groove. An opening / closing member movable between a position relatively close to the weight holding plane and a position relatively distant from the weight holding plane for allowing the syringe to enter and exit the groove;
A support guide member that supports and guides the holding member so that the holding member can be moved along the movement axis; and
A holding member driving member for driving the holding member to convey the syringe held by the holding member along the movement axis; and
An opening / closing member driving member for driving the opening / closing member to move relative to the holding member.
Since the holding member is supported and guided by the support guide member, driven by the holding member driving member, and transported, the syringe can be transported while preventing friction against other members of the syringe.

  The holding member has a through hole, and if the through hole opens adjacent to the weight holding plane and extends linearly at right angles to the weight holding plane over its entire length, the through hole has a rigidity of the holding member. It is effective for reducing the weight of the holding member without reducing the (secondary moment of section) (hole structure = highly rigid and lightweight structure), and after the gas collides with the holding member around the syringe, Intrusion into the internal hole penetrating is suppressed, and foreign material is effectively prevented from entering the internal hole of the syringe.

  The opening / closing member is supported by the holding member so as to be rotatable about the rotation axis, and if the rotation axis is arranged on the downstream side of the air flow from the weight holding plane, the foreign matter that may be generated with the rotation of the opening / closing member is removed. Effectively suppresses entry into the internal hole of the syringe.

  The holding member has a contact portion that contacts the support guide member and moves relative to the support guide member. If the contact portion is disposed on the downstream side of the air flow from the weight holding plane, the contact portion and the support guide member It is possible to effectively prevent foreign matter that may be generated with the contact movement between the syringe and the syringe from entering the internal hole of the syringe.

  The holding member has a driven portion that moves relative to the holding member driving member in contact with the holding member driving member, and if the driven portion is disposed on the downstream side of the air flow from the weight holding plane, the driven member is driven. It is possible to effectively prevent foreign matters that may be generated with the contact between the portion and the holding member driving member from entering the internal hole of the syringe.

  The opening / closing member has a biased portion that comes into contact with the opening / closing member driving member and is biased by the opening / closing member driving member, and the biased portion is disposed on the downstream side of the air flow from the weight holding plane. It is possible to effectively prevent foreign matters that may be generated due to contact between the biased portion and the opening / closing member driving member from entering the internal hole of the syringe.

  If the holding member driving member is arranged on the downstream side of the air flow from the support guide member, foreign matter that may be generated due to contact between the holding member driving member and the holding member that generates a relatively large contact stress is generated. Further, the movement to the upstream side of the air flow is hindered by the support guide member, and the entry into the internal hole of the syringe is effectively suppressed.

  If the groove is arranged to be present on both sides of the part of the opening / closing member in the longitudinal direction of the groove when a part of the opening / closing member is relatively close to the weight holding plane, The detachment of the syringe and the movement of the syringe in the groove are effectively suppressed by a part of the opening / closing member.

  The holding member has an elongated hole, the inner wall plane of the elongated hole extending in the longitudinal direction of the elongated hole is perpendicular to the moving axis, and the elongated hole penetrates the retaining member in a direction perpendicular to the longitudinal direction of the elongated hole and the moving axis. Then, a light beam emitted from a position stationary with respect to the holding member driving member and traveling in a direction perpendicular to the moving axis passes through the holding member only (along the long hole inner wall plane (other than the long hole inner wall curved surface)). If the position of the holding member in the direction along the moving axis is detected based on whether or not the light beam can pass through the long hole, the position measurement in the axial direction of the holding member can detect errors in the position and direction of the light beam. It is performed with high accuracy while allowing a large amount.

  If the opening / closing member moves together with the holding member in the movement axis direction, it is possible to reduce the possibility of occurrence of foreign matter due to contact between the opening / closing member and the syringe.

  An embodiment of the syringe transport device for injection according to the present invention will be described with reference to FIGS. The syringe transport device contacts the syringe 10 (including a tip end portion 10a to which an injection needle (not shown) is to be attached, a center tube portion 10b, and a rear end portion 10c extending radially outward from the center tube portion 10b). The holding member that can move along the movement axis while holding the syringe 10, the movable opening and closing member 2 for preventing the detachment of the syringe from the holding member, and the holding member are moved along the movement axis. A supporting guide member 3 that is a cylindrical shaft parallel to each other in three dimensions, a holding member driving member 4 that drives the holding member to move along the movement axis, and an opening / closing member 2 that drives the holding member. And an opening / closing member driver 5 for movement.

The holding member contacts the rear end portion 10b, receives the weight of the syringe 10, and extends in a direction perpendicular to the weight holding plane 1a for preventing the syringe 10 from moving in the longitudinal direction of the syringe 10. A groove 1b for contacting the syringe 10 and preventing movement of the syringe in a direction perpendicular to the longitudinal direction of the syringe 10, and one of the longitudinal ends of the groove is open to the weight holding surface 1a to open the central cylindrical portion A holding member main body 1 including a groove 1b for accommodating 10b and a base plate 12 to which the holding member main body 1 is attached via a spacer 11 are provided.
The holding member further includes a rack 13 that is driven by being engaged with a holding member driving member 4 that is a pinion gear (driven by a motor (not shown)) and moves the holding member main body 1 through the base plate 12 and the spacer 11, and a base plate And a guide roller 14 having a roller 14b having a V groove that is rotatably supported on the pin 14a and sandwiches the cylindrical outer surface of the support guide member 3. Each support guide member 3 is engaged with two rollers 14b that are separated from each other in the movement axis direction, and a roller 14b that engages one support guide member 3 and a roller 14b that engages the other support guide member 3. The spacing in the direction perpendicular to the longitudinal axis of the support guide member 3 is adjusted so that the holding member can move along the support guide member 3 without play. The support guide member 3 is fixed to an apparatus main body (not shown).

The holding member main body 1 has a through hole 1c that opens adjacent to the weight holding plane 1a. The through hole 1c extends linearly at right angles to the weight holding plane 1a over the entire length thereof, and penetrates the holding member main body 1. is doing.
The opening / closing member 2 is mounted on a block 22 fixed to the base plate 12 via an arm 20 and a pivot shaft 21, and the pivot shaft 21 is rotatably supported by the block 22. The opening / closing member 2 can be rotated and moved with respect to the holding member main body 1. A connecting member 23 is further fixed on the pivot shaft 21, and a ball 24 is fixed on the connecting member 23. Further, one end of a spring (not shown) is connected to the connecting member 23, and the other end of the spring is connected to the plate 12, and the connecting member 23 is elastically biased so as to bias the opening / closing member 2 upward. Yes. The rotational operation range of the connecting member 23 is limited by a not-shown limiting member fixed to the plate 12 so that the opening / closing member 2 does not apply an excessive force to the syringe 10 and further the opening / closing member 2 does not move excessively downward. Has been.

The opening / closing member driver 5 fixed to the apparatus main body (not shown) has a linear actuator (for example, a pneumatic cylinder) 5a and a pressing plane parallel to the moving axis, and is opened and closed moved in a direction perpendicular to the moving axis by the linear actuator 5a. When the ball 24 reaches a predetermined position in the contactable area between the pressing plane and the ball 24 as the holding member main body 1 moves, the member driving member 5b is provided. The opening / closing member driving member 5b existing at a position where the pressing plane is separated from the ball 24 is driven by the linear actuator 5a to push the ball 24 to move the opening / closing member 2 downward. The opening / closing member 2 is a holding member for the syringe 10. It is held stationary at a lower position so that it can be attached to and removed from the holding member of the syringe 10. When the mounting of the syringe 10 on the holding member and the removal of the syringe 10 from the holding member are completed, the opening / closing member driving member 5b is driven by the linear actuator 5a to return to the position where the pressing plane is separated from the ball 24, and the opening / closing member 2 Is held stationary at an upper position facing the syringe 10 in the horizontal direction and in the vertical region of the groove 1b so as to prevent the syringe 10 from being detached from the holding member main body 1.
The opening / closing member driver 5 may be a cam member as an opening / closing member driving member, and the cam member includes a positioning surface extending in parallel with the moving axis direction and an inclined surface adjacent to the positioning surface. When the ball 24 reaches the slope with the movement, the ball 24 moves along the slope to move the opening / closing member 2 downward. When the ball 24 is on the positioning surface, the opening / closing member 2 is the holding member of the syringe 10. When the holding member main body 1 is further moved along the moving axis so that the ball 24 and the cam member are separated from each other, the ball 24 and the cam member are separated from each other. The opening / closing member 2 is held stationary at an upper position facing the syringe 10 in the horizontal direction and in the vertical region of the groove 1b so as to prevent the syringe 10 from being detached from the holding member main body 1. Good.

  The plate 12 is provided with a long hole 12a, a long hole inner wall plane extending in the longitudinal direction of the long hole 12a is perpendicular to the movement axis, and the long hole 12a is a plate in a direction perpendicular to the long direction of the long hole 12a and the movement axis. 12, a light beam emitted from a light emitter fixed to the apparatus body (not shown) and traveling in a direction perpendicular to the moving axis and detected by the light receiver 31 is allowed to pass through the plate 12. It is possible to detect the position of the holding member in the direction along the movement axis based on whether or not it can pass through the long hole plate 12a. By making the pitch in the movement axis of the long hole 12a coincide with the pitch in the movement axis of the groove 1b, it is possible to efficiently detect the passage of the syringe at the required measurement point.

  In accordance with the present invention, a syringe that is optimal for use in a vertically upward-downward gas flow to reduce the possibility of entry of foreign matter into the internal bore of the syringe (capable of containing an injectable drug) A syringe transport device is provided.

The partial cross section perspective view which shows the Example of the syringe conveyance apparatus for syringes by this invention. The expansion | deployment perspective view which shows the Example of the syringe conveyance apparatus for syringes by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Holding member main body 2 Opening / closing member 3 Support guide member 4 Holding member drive member 5 Opening / closing member driver 10 Syringe 11 Spacer 12 Plate 12a Elongated hole 13 Rack 14 Guide roller

Claims (4)

In a vertically downward gas flow, for holding and transporting a syringe for a syringe comprising a tip portion to which an injection needle is to be attached, a center tube portion, and a rear end portion extending radially outward from the center tube portion Device,
A weight holding plane for contacting the rear end portion to receive the weight of the syringe and preventing movement of the syringe in the longitudinal direction of the syringe, and a longitudinal direction of the syringe extending in a direction perpendicular to the weight holding plane and contacting the syringe retention and a groove for accommodating the middle Hisashito portion opened to the weight holding flat surfaces one of the longitudinal ends of the groove a and grooves for preventing movement of the syringe which definitive in a direction perpendicular to the Members,
An opening / closing member that is movable relative to the holding member in a direction parallel to the longitudinal direction of the groove, and a part of the opening / closing member prevents the syringe from being detached from the groove when the syringe is held in the groove. a position close in the direction of the gas flow relative to the weight holding plane, between a position away in the direction of the gas flow relative to the weight holding plane for allowing entry and exit of the syringe with respect to the groove, moving Possible opening and closing members;
A support guide member that supports and guides the holding member so that the holding member can be moved along the movement axis; and
A holding member driving member for driving the holding member to convey the syringe held by the holding member along the movement axis; and
An opening / closing member driving member for driving the opening / closing member to move relative to the holding member;
Have a holding member has a through hole which opens adjacent to the weight holding plane, the through-hole at right angles to extend linearly in the weight holding plane over its entire length,
The opening / closing member is supported by the holding member so as to be rotatable about the rotation axis, and the rotation axis is disposed on the downstream side of the gas flow from the weight holding plane, and the holding member contacts the support guide member and contacts the support guide member. A contact portion that moves, the contact portion is disposed downstream of the weight holding plane, and the holding member has a driven portion that contacts the holding member driving member and moves relative to the holding member driving member. The driven portion is disposed on the downstream side of the gas flow with respect to the weight holding plane, and the opening / closing member has a biased portion that comes into contact with the opening / closing member driving member and is biased by the opening / closing member driving member. The biasing portion is disposed on the gas flow downstream side from the weight holding plane, and the holding member driving member is disposed on the gas flow downstream side from the support guide member. The groove is arranged to be present on both sides of a part of the opening / closing member in the longitudinal direction of the groove when a part of the opening / closing member is in a position close to the weight holding plane in a gas flow direction. Item 2. The apparatus according to Item 1 . The holding member has an elongated hole, the inner wall plane of the elongated hole extending in the longitudinal direction of the elongated hole is perpendicular to the moving axis, and the elongated hole penetrates the retaining member in a direction perpendicular to the longitudinal direction of the elongated hole and the moving axis. Then, a light beam launched from a position stationary with respect to the holding member driving member and traveling in a direction perpendicular to the moving axis is allowed to pass through the holding member, and the holding member moves based on whether the light beam can pass through the long hole. detecting the position in the direction along the axis a device according to any one of claims 1 and claim 2. The device according to any one of claims 1 to 3 , wherein the opening / closing member moves together with the holding member in the movement axis direction.