JP3063935U - Two-component simultaneous mixing dispenser and plunger coupling member - Google Patents

Abstract

(57) [Problem] To provide a plunger coupling member that can be fixed so as not to be shaken even when a flange portion of a plunger is repeatedly mounted. SOLUTION: Two syringes 1 of a two-liquid simultaneous mixing / dispensing device 1 are provided.
5 is a plunger coupling member 2 for coupling both ends of the plunger 13, wherein the plunger coupling member 2 forms a front plate 3 having an opening 9 and a rear plate 4 behind the front plate 3; A plunger connecting member 2 in which a groove 10 is formed between the front plate 3 and the rear plate 4 and an independent back plate 6 is formed in the rear plate 4 through two slits 8.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a plunger coupling member of a secondary liquid simultaneous dispenser, and more specifically, a two-liquid simultaneous dispenser for simultaneously dispensing a two-liquid mixed-type living tissue adhesive using two syringes. The present invention relates to an improvement in a connecting member for connecting plungers of the syringe to each other.

[0002]

[Problems to be solved by conventional techniques and devices]

 2. Description of the Related Art Conventionally, for example, a two-component mixed-type biological tissue adhesive composed of a solution containing factor ΙΙ and fibrinogen and a solution containing thrombin has been used for assisting suturing and hemostasis after human or animal surgery. I have. Since the effect of the adhesive starts immediately after mixing, it is stored separately in two syringes, and they are injected simultaneously and at the same speed to apply and spray the affected part. FIG. 5 is a perspective view of a conventional plunger coupling member 20A. The plunger connecting member 20A is configured by arranging a front plate 33 having a U-shaped opening 39 and a rear plate 34 in the rear direction of the front plate 33. The front plate 33 and the rear plate 34 It is formed integrally with an intervening portion 35 therebetween. Between the front plate 33 and the rear plate 34, a groove 40 having a width into which the flange portion 14 of the plunger 13 is inserted is formed, and the inner peripheral surface of the bottom wall 42 also contacts the outer periphery of the flange portion 14. The interposed portion 35 is composed of a partition wall 41 extending vertically at a central portion of the front plate 33 and a bottom wall 42 which is divided left and right from below the partition wall 41 and extends outward. Independent tongue pieces 36 reaching the upper end of the bottom wall 42 are formed between the front plate 33 and the rear plate 44 via the slits 38 respectively. The tongue piece 36 covers from the side part to the upper part of the flange part 14, and the distance between the partition wall 41 of the interposition part 35 and the upper end of the tongue piece 36 is formed smaller than the diameter of the flange 14. When the flange portion 14 of the plunger 13 is inserted from above the groove portion 40, the elastic tongue piece 36 which contacts the upper end of the tongue piece 36 of the bottom wall 42 of the flange portion 14 and is pushed by the flange 14 and spreads rearward. The flange 14 is fitted into the groove 40. When the bottom of the flange portion 14 reaches the bottom wall 42, the tongue piece 36 expanded by the flange portion 14 returns to its original position, and the tongue piece 36 fits on the outer periphery of the flange portion 14. When the portion is repeatedly mounted on the plunger connecting member 20A, the fitting force of the tongue piece 36 is weakened, and the flange portion 14 is wobble, and the fingertip feels uncomfortable at the time of injection. Thus, the present inventors have conducted intensive studies to solve the above problems, and as a result, have arrived at the following invention.

[0003]

[Means for solving the problem]

 [1] The present invention is a plunger coupling member 2 for coupling both ends of plungers 13 of two syringes 15 of a two-liquid simultaneous mixing / dispensing device 1, wherein the plunger coupling member 2 has an opening 9. A front plate 3 is formed and a rear plate 4 is formed behind the front plate 3. A groove 10 is formed between the front plate 3 and the rear plate 4. Two slits are formed in the rear plate 4. A plunger connecting member (2) having an independent back plate (6) is provided through the (8). [2] In the present invention, the back plate 6 has an elasticity that allows the back plate 6 to tilt backward when the flange portion 14 of the plunger 13 is mounted, and to return to the original position after the flange portion 14 is mounted. 6 is provided. [3] The present invention provides the plunger coupling member 2 according to [1] or [2], wherein the projection 7 is formed inside the back plate 6. [4] The present invention provides two syringes 15, a syringe holder 18 for fixing the syringes 15 in parallel, a Y-shaped nozzle 17 to be mounted on the tip of the syringe 15, and a plunger 13 mounted to the syringe 15. A two-liquid simultaneous mixing / dispensing device 1 provided with the plunger coupling member 2 according to [1] to [3], which is attached to a flange portion 14 formed at a rear end of the device.

[0004]

[Embodiment of the invention]

 FIG. 1 is a schematic view of a two-liquid simultaneous mixing / dispensing device 1 of the present invention, and FIG. 2 is a perspective view of a plunger connecting member 2. FIG. 3 is a sectional view taken along line AA ′ of the plunger connecting member 2 of FIG. 2. FIG. 4 is a sectional view taken along line BB ′ of the plunger connecting member 2. The two-component simultaneous mixing / dispensing device 1 includes a syringe holder 18 for fixing two disposable syringes 15 in parallel, and a plunger for connecting flanges 14 formed at the rear end of the plunger 13 mounted on the syringe 15. It is configured by mounting the connecting member 2 and a Y-shaped nozzle 17 having a flow passage hole communicating with the syringe 15. The two syringes 15 are mounted in the grooves 19 of the syringe holder 18, and the flange 16 at the rear end of the syringe 15 is locked in a flange locking groove 21 formed inside the finger hook 20. .

The plunger coupling member 2 has an elliptical front plate 3 having a U-shaped opening 9 opening upward and an outer diameter profile substantially the same as the front plate 3 in the rear direction of the front plate 3. The rear plate 4 is arranged, and the front plate 3 and the rear plate 4 are integrally formed with an interposed portion 5 therebetween. By forming two slits 8 in the rear plate 4 downward from the upper end, an independent back plate 6 is formed through the slits 8. Further, a protruding portion 7 is formed at an upper portion inside the back plate 6. Although not shown, the center of the rear surface of the rear plate 4 communicating with the back plate 6 is formed in an uneven shape to prevent slippage when pressing with a finger. The intervening portion 5 is composed of a partition wall 11 and a bottom wall 12, and as shown in FIG. 3, the partition wall 11 extends vertically in the center of the front plate 3 and is divided into left and right sides from below the partition wall 11, each of which is directed outward. And a bottom wall 12 extending therefrom. A groove 10 is formed between the front plate 3 and the rear plate 4 and has a width in which a flange 14 of a plunger 13 to be described later is mounted, and an inner peripheral surface of the bottom wall 12 is described later similarly to the groove 10. Abuts against the outer periphery of the flange portion 14 of the plunger 13. The plunger connecting member 2 is integrally formed of a synthetic resin such as PP (polypropylene), PE (polyethylene), or hard vinyl chloride.

A method of using the plunger connecting member 2 will be described. A pair of syringes 15 into which the two-component adhesive is sucked one by one are mounted in the grooves 19 of the syringe holder 18, and the flange 16 of the syringe 15 is locked in the flange locking groove 21. Next, a Y-shaped nozzle 17 according to the purpose of use is attached to the tip of the pair of syringes 15. Further, the plunger connecting member 2 of the present invention is fitted to a pair of flange portions 14 at the rear end of the plunger 13 and the plungers 13 are connected to each other to assemble the two-liquid simultaneous mixing / dispensing device 1. The rod 22 of the plunger 13 is fitted into the U-shaped opening 9, and the flange 14 is inserted into the groove 10. At this time, the rear end face of the flange portion 14 comes into contact with the protrusion 7 of the back plate 6 and the elastic back plate 6 is pushed by the protrusion 7 and is pushed rearward so that the flange portion 14 fits into the groove portion 10. Be worn. When the bottom of the flange 14 reaches the bottom wall 12, the back plate 6 expanded to the rear of the flange 14 returns to its original position, and the bottom of the projection 7 engages with the upper outer periphery of the flange 14. Therefore, the flange 14 is fixed to the groove 10. The back plate 6 is inclined backward when the flange portion 14 is mounted, and can be returned to the original position after the flange portion 14 is mounted. The shape of 7 is not particularly limited. When removing the flange 14 fitted in the groove 10 from the plunger connecting member 2, the back plate 6 is pushed rearward with a finger to widen the entrance of the groove 10 and remove it.

[0007]

[Effects of the invention]

 When the flange 14 of the plunger 13 is fitted into the groove 10 of the plunger coupling member 2, the rear end surface of the flange 14 comes into contact with the projection 7 attached to the back plate 6 of the rear plate 4, and the back plate 6 is moved. When the fitting is completed, the back plate 6 is returned to its original position, and the flange 7 is fixed by the projection 7 so as not to move. For this reason, the plunger connecting member 2 of the present invention can be fixed so that the flange portion of the plunger is not shaken even when repeatedly mounted.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a two-liquid simultaneous mixing / dispensing device 1 of the present invention.

FIG. 2 is a perspective view of the plunger connecting member 2 of the present invention.

FIG. 3 is a cross-sectional view taken along line AA ′ of the plunger coupling member 2 of FIG. 2;

4 is a sectional view of the plunger coupling member 2 taken along line BB 'of FIG. 2;

FIG. 5 is a perspective view of a conventional plunger coupling member 20A.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Two-liquid simultaneous mixing / dispensing device 2, 20A Plunger coupling member 3, 33 Front plate 4, 34 Rear plate 5, 35 Interposition part 6 Back plate 7 Projection 8, 38 Slit 9, 39 Opening 10, 40 Groove 11, 41 Partition Wall 12, 42 Bottom Wall 13 Plunger 14 Flange 15 Syringe 16 Flange 17 Nozzle 18 Syringe Holder 19 Groove 20 Finger Hook 21 Flange Lock Groove 22 Rod 36 Tongue

Claims (4)

[Utility model registration claims] 1. Two syringes 1 of a two-liquid simultaneous mixing / dispensing device 1
5 is a plunger coupling member 2 for coupling both ends of the plunger 13, wherein the plunger coupling member 2 is a front plate 3 having an opening 9.
And a rear plate 4 is formed behind the front plate 3, a groove 10 is formed between the front plate 3 and the rear plate 4, and the rear plate 4 is independently formed through two slits 8. A plunger connecting member 2 having a back plate 6 formed thereon. 2. The back plate 6 has an elasticity such that the back plate 6 can be inclined backward when the flange portion 14 of the plunger 13 is mounted, and can return to its original position after the flange portion 14 is mounted. The plunger coupling member 2 according to claim 1, characterized in that: 3. The plunger coupling member 2 according to claim 1, wherein a projection 7 is formed inside said back plate 6. 4. A syringe, comprising two syringes 15, a syringe holder 18 for fixing the syringes 15 in parallel, and the syringe 1
4. A plunger coupling member 2 according to claim 1, wherein the plunger coupling member 2 is attached to a flange portion 14 formed at a rear end of a plunger 13 attached to the syringe 15. Two-liquid simultaneous mixing / dispensing device 1.