TWI637761B - Closed system dispensing device - Google Patents

Abstract

The invention relates to a closed system dispensing device, which comprises a pushing tube and a connecting seat. The pushing tube comprises an outer tube, an inner tube and a push rod. The inner tube is inserted in the outer tube, and the push rod is movable The outer cylinder comprises an air inlet tube, and the inner tube comprises a medicine feeding tube. The connecting base comprises a connecting cover, two reaming needles, an elastic valve and a water stopping member, and the two reaming needles are covered on the In the elastic valve, the elastic valve is disposed in the connecting cover, and the water stopping member is disposed in one of the reaming needles. When the user inserts the pushing tube into the connecting seat, the intake pipe and the feeding tube compress the elastic valve. The two reaming needles are inserted into the elastic valve and enter the medicine feeding tube and the air inlet tube respectively. The present invention is completed by inserting the two reaming needles into the connecting seat, and the whole medicine taking and medicine feeding process is completed in the connecting seat. Make this process safe and fast.

Description

Closed system dispensing device

The present invention relates to a dispensing administration system, and more particularly to a closed system dispensing device capable of reliably preventing leakage of gas generated by a chemical solution and a medicament.

In the prior art, the medicine is administered by using a syringe with a steel needle inserted into the medicine bottle to be taken, and the internal medicine is drawn into the syringe, and then the syringe is pulled out, and then The liquid medicine in the syringe is injected into the patient through the needle, diluted or directly administered to the patient.

However, the process of taking the medicine by the syringe does not have a particularly strict sealing and leakage prevention. Therefore, in the process of pumping the medicine into the syringe to inject the medicine, it is very likely that the medicine is dripped out. Or because of the volatility of the liquid, the gas is released, and the medical site is a complicated environment of the drug, not only the drug itself may have a harmful effect on healthy medical personnel, but also if the drug is accidentally in the process of injection. Leakage left behind in hospitals, and the combination of different drugs makes it easier for the hospital itself to become an extremely dangerous workplace.

In addition, when a needle is used for injection, the medical staff may accidentally be scratched by the needle, and if the liquid medicine remaining at the time of the injection is more likely to cause unnecessary infection to the medical staff, the needle is taken in the prior art. The method of administration has yet to be improved.

In view of the shortcomings and deficiencies of the prior art, the present invention provides a closed system dispensing device that utilizes a reamer in a tube and completely encapsulates the taking process, so that the process of taking the drug is sealed without generating Risk of scratching or exposing the needle.

For the purpose of the above-mentioned creation, the technical means adopted by the present invention is a closed system dispensing device, which comprises a pusher barrel, which comprises an outer tube comprising an intake pipe and a connecting hole, the intake pipe a rubber plug is disposed on the bottom surface of the outer tube, and a rubber plug is disposed in the air inlet tube adjacent to the lower end opening of the air inlet tube. The connecting hole is disposed on the bottom surface of the outer tube. And an inner tube is disposed in the outer tube; the inner tube further comprises an air hole and a medicine feeding tube, wherein the air hole is disposed on the inner ring wall surface of the inner tube, and An inner space of the inner cylinder is communicated with an inner space of the outer cylinder, and the medicine feeding tube is disposed on a bottom surface of the inner cylinder, and is disposed in the connecting hole of the outer cylinder, and the medicine feeding tube is adjacent to the feeding tube a rubber plug is disposed at a lower end opening of the medicine tube, and is provided with a normally closed slit; a push rod is vertically movable through the outer tube and the inner tube, and a bottom portion of the push rod is provided with a piston portion. The piston portion separates the inner space of the inner cylinder up and down Two parts that are not connected; a connecting seat that is detachably connected to the push barrel, and includes a connecting cover that includes at least one external hole; two reaming pins, the two reaming pins are disposed on the connecting cover And the tip of the reamer is selectively penetrating through the slit of the rubber stopper of the drug feeding tube and the slit of the rubber stopper of the inlet tube; each of the reamer needle further comprises Each of the inner space and a first opening, and the inner space of each of the reaming pins is in communication with the at least one outer hole of the connecting cover, the first opening is disposed at a top end of the reaming pin; An elastic valve is a compressible elastic material. The elastic valve is disposed in the connecting cover, and the elastic valve is selectively coated on the outer side of the two reaming pins. The elastic valve is provided with two notches. The two notches are respectively located above the two reaming needles, and the two notches are in a normally closed state, and are selectively penetrated by the two reaming needles; a water stop member disposed in the connection cover and corresponding to the inner space of the reaming pin corresponding to the intake pipe.

For the purpose of the above-mentioned creation, the technical means adopted by the present invention is a closed system dispensing device, which comprises a push barrel, which comprises an outer tube comprising an air inlet tube and a connecting hole, the air inlet tube a rubber plug is disposed on the bottom surface of the outer tube, and a rubber plug is disposed in the air inlet tube adjacent to the lower end opening of the air inlet tube. The connecting hole is disposed on the bottom surface of the outer tube. And an inner tube is disposed in the outer tube; the inner tube further comprises an air hole and a medicine feeding tube, wherein the air hole is disposed on the inner ring wall surface of the inner tube, and An inner space of the inner cylinder is communicated with an inner space of the outer cylinder, and the medicine feeding tube is disposed on a bottom surface of the inner cylinder, and is disposed in the connecting hole of the outer cylinder, and the medicine feeding tube is adjacent to the feeding tube a rubber plug is disposed at a lower end opening of the medicine tube, and is provided with a normally closed slit; a push rod is vertically movable through the outer tube and the inner tube, and a bottom portion of the push rod is provided with a piston portion. The piston portion divides the inner space of the inner cylinder up and down into Two connecting portions; a connecting seat detachably connected to the push cylinder, and comprising a connecting cover, comprising at least one external connecting hole; and two reaming pins, wherein the two reaming pins are disposed in the connecting cover And the tip of the reaming needle is selectively penetrated through the slit of the rubber stopper of the medicine feeding tube and the slit of the rubber stopper of the air inlet tube; each of the reaming needles further comprises a respective a separate interior space and a first opening, and each The inner space of the reamer communicates with the at least one outer hole of the connecting cover, the first opening is disposed at a top end of the reamer; An elastic valve is a compressible elastic material. The elastic valve is disposed in the connecting cover, and the elastic valve is selectively coated on the outer side of the two reaming pins. The elastic valve is provided with two notches. The two notches are respectively located above the two reaming needles, and the two notches are in a normally closed state, and are selectively penetrated by the two reaming needles; a one-way valve disposed in the connecting cover and corresponding to the inner space of the reamer corresponding to the intake pipe, the one-way valve allowing air to flow through the unidirectional direction only in a single direction valve.

The advantage of this creation is that, when the creation is used, when the push tube and the connecting seat are not combined, the rubber plugs of the outer tube and the inner tube are closed, and the two notches of the elastic valve of the connecting seat are also closed, and will be connected. When the seat is combined with the push cylinder, the two reaming pins of the connecting seat penetrate the two notches of the elastic valve and the two rubber plugs of the push cylinder, so that the push cylinder and the connecting seat communicate with each other through the two reaming needles, thereby connecting the connecting seat It is set on various items to achieve the usual closed state, and can be connected immediately after being combined with the push tube; in addition, when used for taking the medicine, the connecting seat and the push tube are combined, because one of the reaming needles is provided There is a water stop member, so that the liquid of the liquid medicine can be separately introduced into the medicine inlet tube and the gas of the push tube to discharge the air inlet tube; therefore, the creation has the following four advantages: first, by the medicine tube and the air inlet The double tube design of the tube and the setting of the water stop member can achieve the effect of diverting the liquid medicine and the air to each other to the respective circulation pipes; second, since the entire medicine taking process occurs in the interior of the intake pipe and the medicine feeding tube Two reaming needles, so not only the liquid will not Leakage, if the drug is volatile, its gas will also enter and exit the push rod through the intake pipe, forming an airtight internal passage without leaking into the air, thus greatly improving the safety of medical personnel in taking medicines. Thirdly, the reaming needle that may be contaminated with the liquid is placed in the elastic valve without being exposed, so that it does not have the possibility of scratching the person; Fourth, compared with the prior art, whether it is taking medicine When the liquid is injected into the corresponding places, the small steel needle is used as the transmission tube. The medical staff is not able to insert the steel needle into the opposite position due to mistakes, but the creation uses the medicine tube and the air inlet. Tube and matching connector as The medium to be transported has a diameter much larger than that of a small steel needle, enabling medical personnel to accurately and quickly insert the creation into the correct drug delivery position.

Further, in the above-mentioned closed system dispensing device, wherein the water stopping member is a hydrophobic filter paper.

Further, in the above-mentioned closed system dispensing device, the reamer corresponding to the feeding tube further includes a second opening, the second opening is disposed on the side wall of the reamer, and is located at the side Below the first opening.

Further, in the above-mentioned closed system dispensing device, wherein the outer tube further comprises a cover and a foolproof groove, the cover is formed around the periphery of the bottom end of the outer tube and extends vertically downward, the anti-dwelling groove The slot is recessed on the inner wall surface of the outer cover; the connecting cover of the connecting base further includes a foolproof bump protruding from the side wall surface of the connecting cover, the anti-slipping bump slidably Fitted in the anti-dwelling groove.

Further, the above-mentioned closed system dispensing device, wherein the outer tube further comprises an outer cylinder opening, the outer cylinder opening is disposed on a top surface of the outer cylinder; the inner cylinder further comprises an inner cylinder opening, the inner cylinder The opening is disposed on the top surface of the inner cylinder, and the inner cylinder is inserted into the outer cylinder from the outer cylinder opening; further comprising an airtight cover and an airtight ring, wherein the airtight cover is disposed on the inner cylinder and the inner cylinder a top surface of the outer cylinder, and covering the outer cylinder opening and the inner cylinder opening, and clamping and fixing the outer cylinder and the inner cylinder, the airtight ring abutting against the airtight bottom surface and the inner cylinder opening top Between the faces.

Further, the aforementioned closed system dispensing device further includes a leakage preventing member disposed at a bottom of the connecting seat.

Further, the above-mentioned closed system dispensing device, wherein the outer tube further comprises a first connecting member; the connecting cover further comprises a second connecting member, the second connecting member and the first connecting member are detachable Ground connection.

Further, in the above-mentioned closed system dispensing device, the first connecting member comprises a sliding sleeve and two elastic buckles, and the sliding sleeve is sleeved on the outer cylinder, and the two elastic buckles are disposed on the outer sleeve. The opposite sides of the bottom of the outer tube are bent and the outer side of the outer tube is bent; the second connecting member comprises two hook grooves, the two hook grooves are horizontally recessed inwardly on the connecting cover, and the two The position of the hook groove corresponds to the position of the two elastic buckles; wherein, when the outer tube is connected with the connecting seat, the sliding sleeve slides downward and presses the two elastic buckles to buckle the two elastic buckles Enter the corresponding two hook grooves.

Further, in the above-mentioned closed system dispensing device, wherein the first connecting member comprises two latching hooks, and the two latching hooks are formed on opposite inner side surfaces of the bottom end of the outer cylinder; The connecting member includes two hook grooves, the two hook grooves are horizontally recessed in the connecting cover, and the positions of the two hook grooves correspond to the positions of the two snap hooks; When the outer cylinder is connected to the connecting seat, the two snap hooks are engaged in the corresponding two hook grooves.

Further, in the above-mentioned closed system dispensing device, wherein the first connecting member comprises two hooks, the two hooks are disposed on opposite sides of the bottom of the outer tube, and each of the hooks has a hook portion And a pressing portion formed under the pressing portion, and the buckle portion is coupled to the pressing portion; the second connecting member comprises two cylinders, and the two cylinders are formed on the connecting seat The top end and the top end of each of the cylinders are hook-shaped; wherein when the outer cylinder is connected with the connecting seat, the two hook portions are fastened to the corresponding top ends of the two cylinders.

Further, in the above-mentioned closed system dispensing device, the connector further includes an insertion needle and a medicine bottle engaging portion, the insertion needle is disposed at a bottom end of the connection cover, and the connection cover and the two The reaming needles are connected and connected to each other, and the at least one external hole is formed through the insertion needle, and the medicine bottle engaging portion is disposed on the bottom surface of the connecting cover.

Further, in the above-described closed system dispensing device, the connector further includes a connecting ring projecting downwardly from the bottom surface of the connecting cover, and the inner wall surface of the connecting ring is formed with internal threads.

Further, in the above-mentioned closed system dispensing device, the connector further includes a Y-shaped tube, one end of the Y-shaped tube is disposed on a bottom surface of the connecting cover and communicates with the at least one external hole.

Further, in the above-mentioned closed system dispensing device, wherein the connector further comprises a drop connector, the drop connector comprises an adapter and a drop connector, the side wall of the adapter is connected to the connector The bottom surface is connected to the at least one external hole, and the drip connection tube is disposed at one end of the adapter.

10, 10’‧‧‧ push

11‧‧‧Outer tube

111‧‧‧Outer cylinder opening

112‧‧‧Intake pipe

113‧‧‧Connection hole

114‧‧‧ rubber stopper

115, 115', 115" ‧ ‧ outer cover

116‧‧‧Dustproof trench

117‧‧‧ incision

118‧‧‧Outer ring flange

119, 119', 119" ‧ ‧ first connector

1191‧‧‧Sleeve

1192‧‧‧elastic buckle

12‧‧‧ inner tube

121‧‧‧Inner cylinder opening

122‧‧‧ stomata

123‧‧‧medication tube

124‧‧‧ rubber stopper

125‧‧‧ incision

126‧‧‧ Inner ring flange

13‧‧‧ airtight cover

131‧‧‧Top cover

132‧‧‧Deduction Department

133‧‧‧Central opening

134‧‧‧ airtight ring

14‧‧‧Put

141‧‧‧ pole

142‧‧‧Piston Department

20, 20" ‧ ‧ joints

21‧‧‧Connecting cover

211, 211’‧‧‧ upper shell

212‧‧‧Base

213‧‧‧External holes

214‧‧‧Transfer hole

215‧‧‧Protruding bumps

22‧‧‧Reamer

221‧‧‧ first opening

222‧‧‧ second opening

23‧‧‧Water stop

24‧‧‧Elastic valve

241‧‧ ‧ gap

25, 25', 25" ‧ ‧ second connector

251, 251’‧‧‧ buckle groove

27‧‧‧ leakproof parts

271‧‧‧adhesive surface

272‧‧‧film

273‧‧‧Flange

31‧‧‧Insert needle

32‧‧‧Pill bottle fittings

321‧‧‧Pill bottle fittings

322‧‧‧Pill bottle buckle

91‧‧‧Pill bottles

92‧‧‧ liquid

10A‧‧‧Pushing

20A‧‧‧Connector

21A‧‧‧Connecting cover

26A‧‧‧ check valve

33A‧‧‧ Connecting ring

331A‧‧‧ internal thread

20B‧‧‧Connector

21B‧‧‧Connecting cover

213B‧‧‧External hole

26B‧‧‧ check valve

34B‧‧‧Y-tube

341B‧‧‧ branch

21C‧‧‧Connecting cover

213C‧‧‧External hole

26C‧‧‧ check valve

35C‧‧‧Drip Connector

351C‧‧‧Adapter

352C‧‧‧Drip connection tube

Figure 1 is a perspective view of the first embodiment of the present creation.

Figure 2 is an exploded view of the components of the creative pusher.

Figure 3 is an exploded view of the connector of the first embodiment of the present invention.

Figure 4 is a partial cross-sectional front view of the creation pusher.

Figure 5 is a cross-sectional elevational view of the connector of the first embodiment of the present invention.

Fig. 6 is a perspective view showing the connection of the connector of the second embodiment of the present invention to the infusion tube.

Figure 7 is a cross-sectional elevational view of the connector of the second embodiment of the present invention.

Fig. 8 is a perspective view showing the connection of the connector of the third embodiment of the present invention to the infusion tube.

Figure 9 is a cross-sectional elevational view of the connector of the third embodiment of the present invention.

Fig. 10 is a perspective view showing the connection of the connector of the fourth embodiment of the present invention to the infusion tube.

Figure 11 is a cross-sectional elevational view of the connector of the fourth embodiment of the present invention.

Fig. 12 is a motion diagram (1) of the taking process of the first embodiment of the present invention.

Figure 13 is a diagram (2) of the action taking process of the first embodiment of the present invention.

Figure 14 is a diagram (3) of the action taking process of the first embodiment of the present invention.

Figure 15 is a partial enlarged view of Figure 12.

Figure 16 is a schematic view of the first type of connector of the present invention.

Figure 17 is an action diagram (1) of Figure 16.

Figure 18 is an action diagram (2) of Figure 16.

Figure 19 is a schematic view of the second type of connector of the present invention.

Figure 20 is an action diagram (1) of Figure 19.

Figure 21 is an action diagram (2) of Figure 19.

Figure 22 is a schematic view of the third type of connector of the present invention.

Figure 23 is an action diagram (1) of Figure 22.

Figure 24 is an action diagram (2) of Figure 22.

Figure 25 is an exploded view of the components of the present invention and the leakage preventing member.

Figure 26 is a schematic cross-sectional view of Figure 25.

Fig. 27 is a schematic view showing the state of use of the present connector and the medicine bottle.

The technical means adopted by the present invention for achieving the intended purpose of creation are further explained below in conjunction with the drawings and the preferred embodiment of the present invention.

Referring to FIG. 1, a first embodiment of the closed system dispensing device of the present invention includes a push barrel 10 and a connecting base 20.

Referring to FIGS. 1 and 2 , the push barrel 10 includes an outer tube 11 , an inner tube 12 , an airtight cover 13 and a push rod 14 .

The outer cylinder 11 is a cylindrical structure having an outer cylinder opening 111. The outer cylinder opening 111 is disposed on a top surface of the outer cylinder 11, and the outer cylinder opening 111 includes an outer ring flange 118. The rim 118 extends horizontally around the circumference of the outer cylinder opening 111.

As shown in FIG. 2 and FIG. 4 , the outer tube 11 further includes an air inlet tube 112 , a connecting hole 113 , a rubber plug 114 , a cover 115 , a guard groove 116 , and a first connecting member 119 .

The intake pipe 112 protrudes downwardly from the bottom surface of the outer cylinder 11. The connecting hole 113 is disposed on the bottom surface of the outer cylinder 11 and is spaced apart from the air inlet pipe 112. The rubber plug 114 is disposed in the air inlet pipe 112. To be precise, the rubber plug 114 is disposed in the intake pipe 112 adjacent to the lower end opening of the intake pipe 112, and the rubber plug 114 is provided with a normally closed slit 117, which normally closes the intake pipe. The bottom end of 112.

In the first embodiment, the air inlet pipe 112 is selectively closed by the rubber plug 114. However, not limited thereto, a material other than rubber may be used, and in the first embodiment, the rubber stopper 114 is It is fixed to the bottom end of the intake pipe 112 by means of a hot melt, but it is not limited thereto, and it may be fixed by other means.

Referring to FIG. 1 , FIG. 2 , FIG. 4 and FIG. 16 , the outer cover 115 is formed around the circumference of the bottom end of the outer tube 11 and extends vertically downward so that the air inlet tube 112 and the connecting hole 113 are wrapped. Covering the inside of the outer cover 115, and in the first embodiment, the outer cover 115 is made of an elastic material, which can be partially deformed by the application of an external force when subjected to an external force. 116 is recessed on the inner wall surface of the outer cover 115, and the corresponding outer wall of the outer cover 115 faces outwardly. In the first embodiment, the number of the anti-slipping grooves 116 is one, and is disposed on the The wall surface of one side of the outer cover 115 is not limited thereto, and the number and position of the anti-slipping grooves 116 are not limited thereto. The first connecting member 119 is disposed on the outer cover 115.

Referring to FIG. 2 and FIG. 4 , the inner tube 12 is disposed in the outer tube 11 , and the inner tube 12 is disposed through the outer tube opening 111 to the inside of the outer tube 11 , and the inner tube 12 also includes An inner cylinder opening 121 is formed on the top surface of the inner cylinder 12. The inner cylinder opening 121 further includes an inner ring flange 126 extending horizontally around the inner cylinder opening. The circumference of the inner ring flange 126 abuts against the top surface of the outer ring 11 at the outer ring flange 118.

The inner tube 12 further includes an air hole 122, a medicine feeding tube 123 and a rubber stopper 124. The air hole 122 is disposed on the inner ring wall surface of the inner tube 12, and more specifically, the air hole 122 is disposed adjacent to the top end of the inner tube 12. The inner cylinder opening 121 is located, and the air hole 122 connects the inner space of the inner cylinder 12 with the inner space of the outer cylinder 11, and the medicine feeding tube 123 is disposed at the bottom surface of the inner cylinder 12, and penetrates the connecting hole 113 provided in the outer cylinder 11. The rubber stopper 124 is disposed inside the medicine feeding tube 123 adjacent to the lower end opening of the medicine feeding tube 123, and the rubber stopper 124 is provided with a normally closed slit 125, and the rubber stopper 124 selectively closes the bottom of the medicine feeding tube 123. end.

In the first embodiment, the rubber tube 124 is used to selectively close the medicine tube 123. However, not limited thereto, a material other than rubber may be used, and in the first embodiment, the rubber stopper 124 is used. It is fixed to the bottom end of the medicine feeding tube 123 by means of hot melt, but it is not limited thereto, and it may be fixed by other means.

Referring to FIG. 1 and FIG. 4, the airtight cover 13 is disposed on the top surface of the outer cylinder 11 and the inner cylinder 12, and covers the outer cylinder opening 111 and the inner cylinder opening 121. The airtight cover 13 includes a top cover. A latching portion 132, a central opening 133 and an airtight ring 134 are disposed. The top cover 131 is disposed above the inner cylinder opening 121 and shields the inner cylinder opening 121 and the outer cylinder opening 111. The fastening portion 132 is a ring. a wall surface extending downward from a bottom surface of the top cover 131. When the user assembles the airtight cover 13 on the push cylinder 10, the fastening portion 132 extends downward to the bottom surface of the outer ring flange 118. And pushing the bottom surface of the outer ring flange 118 upward, so that the outer ring flange 118 abuts against the inner ring flange 126, and the fastening portion 132 sandwiches the outer tube 11 and the inner tube 12 through the clamping mechanism. And fixed to each other.

The central opening 133 is disposed through the center of the top cover 131 and communicates with the inner space of the inner cylinder 12 through the inner cylinder opening 121.

Referring to FIG. 4, the airtight ring 134 is in close contact between the bottom surface of the airtight cover 13 and the top surface of the inner cylinder opening 121. More precisely, in the first embodiment, the airtight ring 134 is disposed on The bottom surface of the top cover 131 and the inner wall surface of the fastening portion 132 are filled with the inner ring flange 126 through the airtight ring 134. And the clearance between the top cover 131. In addition, the center of the airtight ring 134 also protrudes upwardly and surrounds the inner wall surface of the central opening 133. The first embodiment transmits through the airtight ring 134. The airtight cover 13 is capable of closing and interposing the outer cylinder 11 and the inner cylinder 12 more closely.

Referring to FIG. 1 , FIG. 2 and FIG. 4 , the push rod 14 extends through the outer tube 11 and the inner tube 12 , and the push rod 14 further includes a rod portion 141 and a piston portion 142 . The rod portion 141 . The central opening 133 of the airtight cover 13 is disposed downwardly in the inner space of the inner cylinder 12. The piston portion 142 is disposed at the bottom end of the rod portion 141 and is disposed in the inner space of the inner cylinder 12, and The piston portion 142 divides the inner space of the inner cylinder 12 up and down into two portions that are not in communication with each other, wherein the inner space is separated from the air hole 122 by the upper portion.

Referring to FIG. 1 , FIG. 3 and FIG. 25 , the connecting base 20 is detachably connected to the push cylinder 10 , and the connecting base 20 includes a connecting cover 21 , two reaming pins 22 , and a water stopping member 23 . An elastic valve 24, a second connecting member 25 and a leakage preventing member 27.

The shape of the connecting cover 21 corresponds to the shape of the outer cover 115 of the outer cylinder 11, in other words, when the user puts the push cylinder 10 into the connecting seat 20, the outer wall of the connecting cover 21 is fitted to the inner wall of the outer cover 115. .

As shown in FIG. 3 and FIG. 5, the top of the connecting cover 21 includes an upper casing 211, a base 212, at least one outer hole 213, two through holes 214, and a foolproof bump 215. The upper casing 211 is a The base end 212 is disposed on the bottom surface of the upper casing 211 and closes the bottom surface of the upper casing 211. In the first embodiment, the connection between the base 212 and the upper casing 211 is adhered. The way to connect, but not limited to it, it can also use other methods such as cassette or ultrasonic connection and so on.

The at least one external hole 213 is disposed on the bottom surface of the connecting cover 21, and in the first embodiment, the number of the at least one external connecting hole 213 is two, and the two external connecting holes 213 are penetrated through the base 212 and are mutually Interval setting.

The two through holes 214 are disposed on the top surface of the connecting cover 21 , and the two adjusting holes 214 are spaced apart from each other. The anti-streaking protrusions 215 protrude from the side wall surface of the connecting cover 21 and are disposed on the upper casing 211 . The side wall, and the fool preventing projection 215 is slidably fitted in the foolproof groove 116, in other words, when the user combines the pusher cylinder 10 with the connecting seat 20, only the anti-slipping groove 116 is aligned with the anti-staying convexity After the block 215, the pusher 10 can be smoothly coupled with the connector 20.

Referring to FIG. 3 and FIG. 5 , the two reaming pins 22 are disposed in the connecting cover 21 and have their tips facing upward. Further, the two reaming pins 22 are disposed on the base 212 of the connecting cover 21 , and The two reaming pins 22 are spaced apart from each other and disposed in parallel, wherein a reaming pin 22 can penetrate the rubber plug 114 of the intake pipe 112 and penetrate through the slit 117 of the rubber plug 114 into the intake pipe 112. Another reaming needle 22 can be inserted into the rubber stopper 124 of the medicine feeding tube 123 and penetrated into the medicine feeding tube 123 through the slit 125 of the rubber stopper 124. In the first embodiment, the reaming needle The connection between the 22 and the pedestal 212 is connected by means of bonding, but it is not limited thereto, and it can also be connected by other methods such as using a cassette or an ultrasonic wave.

As shown in FIG. 5 , each of the reaming pins 22 further includes a separate internal space and a first opening 221 , and the internal space of each of the reaming pins 22 and the two external holes 213 of the base 212 respectively In other words, the reaming pins 22 are connected to the corresponding external holes 213 through the bottom end, so that the inside of the reaming pins 22 and the external holes 213 communicate with each other, and the first opening 221 is disposed in each of the reaming holes. The tip of the needle 22.

In addition, the reaming needle 22 communicating with the medicine feeding tube 123 further includes a second opening 222 disposed on the side wall of the reaming needle 22 communicating with the medicine feeding tube 123. And disposed under the corresponding first opening 221, more precisely, the second opening 222 is disposed at the bottom of the side wall surface of the reaming pin 22.

Referring to FIG. 3 and FIG. 5, the water stop member 23 is disposed in the connecting cover 21, and more specifically, the water stopping member 23 is disposed inside the reaming pin 22 communicating with the intake pipe 112. In space, In the first embodiment, the water stop member 23 is disposed at the bottom of the reaming pin 22, and is disposed between the bottom of the reaming pin 22 and the outer hole 213. In other words, the water stop member 23 is disposed on the base. On the inner side of the seat 212, in addition, in the first embodiment, the water stop member 23 is a hydrophobic filter paper, but not limited thereto, the water stop member 23 may have other configurations, and the water stop member 23 only has to be It can prevent water from passing through and enter the reaming needle 22.

The elastic valve 24 is a compressible elastic material. The elastic valve 24 is disposed in the connecting cover 21, and the elastic valve 24 is selectively coated on the outer side of the two reaming pins 22, and the elastic valve 24 is provided with two notches. 241, the two notches 241 are respectively located above the two reaming pins 22, and the two notches 241 are normally closed and can be penetrated by the two reaming pins 22. In the first embodiment, the elastic valve 24 The two notches 241 are the same rubber material and structure as the rubber plugs 114 and 124, and are pierced by the two reaming needles 22 for selective opening, but not limited thereto. The notch 241 can also be other materials and structures.

More precisely, in the first embodiment, the elastic valve 24 is completely covered on the outer and upper ends of the two reaming pins 22, and when the connecting seat 20 is not connected to the push cylinder 10, the two reaming pins 22 None of them will be exposed outside the elastic valve 24.

The second connecting member 25 is disposed on the connecting base 20 and has a position corresponding to the first connecting member 119 of the push cylinder 10.

Referring to FIG. 25, FIG. 26 and FIG. 27, the leakage preventing member 27 is disposed at the bottom of the connecting seat 20 and sleeved on the periphery of the insertion needle 31. The leakage preventing member 27 prevents air and moisture from passing through, and The adhesive sheet 271 has a surface 271, a film 272 and at least one flange 273. When the user is installed, the adhesive surface 271 faces downward, and the film 272 is detachably covered on the at least one adhesive surface 271. In the first embodiment, the leakage preventing member 27 is a waterproof sticker, and both sides thereof are adhesive surfaces 271, but not limited thereto.

Referring to FIG. 16 to FIG. 24, the structure and connection manner of the first connecting member 119 and the at least one second connecting member 25 of the present invention have the following types.

Referring to FIG. 16 , FIG. 17 and FIG. 18 , the first type of connector 119 includes a sliding sleeve 1191 and two elastic buckles 1192 . The sliding sleeve 1191 is sleeved on the outer cover 115 . The elastic buckles 1192 are respectively disposed on the two sides of the outer cover 115 and are integrally formed with the outer cover 115. In the unstressed state, the elastic buckle 1192 is bent toward the outer side of the outer cover 115, more precisely, the The two elastic buckles 1192 are two hooks which are split outward by the two sides of the outer cover 115, and have elastic characteristics through the outer cover 115 for outward bending.

The second connecting member 25 of the first type includes two hooking grooves 251 formed on opposite sides of the bottom of the upper casing 211, and the two hooking grooves 251 are horizontally recessed inward. In addition, the positions of the two hook grooves 251 correspond to the positions of the two elastic buckles 1192.

The first connecting member 119 and the second connecting member 25 of the first type are combined in the following manner. First, after the user inserts the outer tube 11 outside the connecting seat 20, the position of the elastic buckle 1192 corresponds to the hook groove. At 251, the user only needs to push down the sliding sleeve 1191, and the sliding sleeve 1191 will press down the elastic buckle 1192 toward the outer side of the outer cover 115, and press it to bend back, so that the elastic buckle 1192 is fastened into the buckle. In the slot 251, the locking is achieved and the push cylinder 10 cannot be displaced up and down. When the user wants to remove the push cylinder 10, the sliding sleeve 1191 is slid upward, and the pressing relationship between the sliding sleeve and the elastic buckle 1192 is ended. When there is no external force, the buckle 1192 is restored to the state of being bent to be separated from the hook groove 251, so that the push cylinder 10 can be separated from the joint 20.

Referring to FIG. 19, FIG. 20 and FIG. 21, in the second mode, the first connecting member 119' is a two-clamping hook, and the two latching hooks are integrally formed with the outer cover 115', and The second connecting member 25' protrudes inwardly from the inner wall surface of the outer cover 115', and the second connecting member 25' includes two hooking grooves 251' fixed in such a manner that when the user applies a force, the outer cover 115' is pushed down into the upper case. When the 211' is outside, since the shape of the two latching hooks is slightly different from that of the upper casing 211', the outer cover 115' may be slightly deformed due to the inward protruding of the two latching hooks, when the user continues the outer cover 115' When the pressure is pressed, the deformations are continuously maintained until the two snap hooks pass through the two hook grooves 251', and the two snap hooks are engaged into the corresponding two hook grooves 251'. The deformation of the outer cover 115' is restored and the effect of fixing is achieved. When the user wants to remove the push cylinder 10', the user applies a slight upward force to separate the two snap hooks from the hook groove 251'.

Referring to FIG. 22, FIG. 23 and FIG. 24, in the third type, the first connecting member 119" is two hooks, and the two hooks are respectively disposed on opposite sides of the outer cover 115", and each of the two The hook has a hook portion and a pressing portion, and the hook portion and the pressing portion have a connecting rod so as to be mutually movable. More precisely, when the user presses the pressing portion, the hook portion will be Tilting away from the outer cover 115", forming an extended state like the elastic buckle in the first form, the second connecting member 25" is a two-hook cylinder, and the two cylinders are respectively formed on the connecting seat 20" Up and up, and the positions of the two second connecting members 25" correspond to the two first connecting members 119". In this type, the fixing manner is that the user sets the outer cover 115" downwardly on the connecting seat. After 20", the two first connecting members 119" are buckled downwardly with the corresponding second connecting members 25", and when the user wants to remove, the pressing portion of the first connecting member 119" is pressed. The first connector 119" can be separated from the second connector 25".

Referring to FIG. 1 , FIG. 5 and FIG. 15 , in the first embodiment, the bottom end of the connecting base 20 , more precisely, the bottom end of the base 212 of the connecting cover 21 further includes an insertion needle 31 . And a medicine bottle engaging portion 32, the insertion needle 31 extends downward from the bottom surface of the base 212 with a tip end downward, and the inside of the insertion needle 31 communicates with the external hole 213, and in the first embodiment The insertion needle 31 is integrally formed on the bottom surface of the base 212. Therefore, the external hole 213 is formed through the insertion needle 31 and is connected to the internal space of the two reaming needles 22 through the two external holes 213. The bottle engaging portion 32 is formed around the bottom surface of the connecting cover 21, more precisely, around the bottom surface of the upper case 211, and the vial engaging portion 32 further includes a plurality of vial snaps. And the medicine bottle engaging member 321 is disposed around the circumference of the bottom end of the connecting cover 21 and extends vertically downward, and the bottom end of each of the medicine bottle engaging members 321 further comprises a medicine bottle buckle 322, the vial buckle 322 is formed on the inner side of the vial engaging member 321 .

Referring to FIG. 6 and FIG. 7, the following is a second embodiment of the present invention. The second embodiment is substantially the same as the first embodiment, but in the second embodiment, there is no bottom portion of the connection cover 21A. The insertion needle 31 and the vial engaging portion 32 are provided with a connecting ring 33A which is a vertically downwardly projecting ring wall surface, and the inner wall surface of the connecting ring 33A is formed with an internal thread 331A.

Referring to FIG. 8 and FIG. 9, the following is a third embodiment of the present invention. The third embodiment is substantially the same as the first embodiment, but in the third embodiment, there is no bottom portion of the connection cover 21B. The insertion needle 31 and the vial engagement portion 32 are provided with a Y-shaped tube 34B. One of the two branches 341B at the top end of the Y-shaped tube 34B is connected to the bottom surface of the connection cover 21B and is externally connected. The holes 213B are in communication.

Referring to FIG. 10 and FIG. 11, the following is a fourth embodiment of the present invention. The fourth embodiment is substantially the same as the first embodiment, but in the fourth embodiment, there is no bottom portion of the connection cover 21C. The insertion needle 31 and the vial engaging member 32 are provided with a drop connector 35C. The drop connector 35C includes an adapter 351C and a drop connector 352C. The side wall of the adapter 351C is connected. The bottom surface of the cover 21C is connected to and communicates with the external hole 213C. The drop connection tube 352C is bored on the adapter base 351C, and the inside of the connection seat 351C communicates with the inside of the drop connection tube 352C.

The following describes the implementation of this creation.

Referring to FIG. 4, FIG. 5 and FIG. 12, in the first embodiment of the present invention, the connecting seat 20 is designed for taking the liquid medicine out of the medicine bottle, and the user firstly takes the medicine. The top of the liquid medicine bottle 91 pierces the connecting seat 20 with the insertion needle 31 facing downward to pierce the sealing film at the top of the vial 91, so that the inside of the connecting base 20 communicates with the inside of the vial 91, at this time, due to the medicine bottle engaging portion 32 will be fixed to the periphery of the bottom end of the vial of the vial 91, so that the connector 20 can be stably placed on the top of the vial 91.

Referring to FIG. 25, FIG. 26 and FIG. 27, in addition, the user tears the film 272 of the leakage preventing member 27 before the connector 20 is placed downwardly above the vial 91, because the flange 273 Prominent in The connecting seat 20 can facilitate the user to tear off the film 272. After the film 272 is peeled off, the adhesive surface 271 is aligned with the vial 91 and pressed down. The adhesive surface 271 is firmly adhered to the bottle of the vial 91. The edge is connected, and since the leakage preventing member 27 is waterproof and airtight, it can prevent the liquid medicine 92 in the vial 91 from spilling. The purpose of the film 272 is that when the user has not bonded the connecting seat 20 and the vial 91, It prevents the adhesive surface 271 from sticking to other irrelevant items.

Referring to FIG. 1 , FIG. 12 and FIG. 15 , after the connecting seat 20 is fixed, the user connects the pusher 10 and the connecting base 20 in the direction in which the outer cover 115 of the push cylinder 10 is aligned with the connecting seat 20 . The two reaming needles 22 need to be respectively inserted into the intake pipe 112 of the outer cylinder 11 and the medicine feeding pipe 123 of the inner cylinder 12, which have a specific directivity, so the foolproof groove 116 of the outer casing 115 and the connecting cover 21 The foolproof bump 215 prevents the user from accidentally inserting the pusher 10 into the connector 20 in the opposite manner.

Referring to FIG. 12 and FIG. 15 , in the process of inserting the push cylinder 10 , the intake pipe 112 and the fuel injection pipe 123 first enter the connection cover 21 through the adapter hole 214 at the top end of the connection cover 21 , and downward. When the elastic valve 24 is pressed down, the elastic valve 24 is gradually compressed correspondingly after the intake pipe 112 and the inlet pipe 123 are gradually pressed, so that the two reaming pins 22 will correspondingly pierce the elastic valve 24 The two notches 241 continue to pierce the two rubber stoppers 114, 124, and then enter the inside of the intake pipe 112 and the drug inlet tube 123, respectively.

Referring to FIG. 13, after the pusher 10 is coupled to the connector 20, the user reverses the creation with the vial 91 attached thereto, and slowly directs the pusher 14 in a direction opposite to the vial 91. Pulling, at this time, each time the push rod 14 is pulled, the piston portion 142 of the push rod 14 increases the volume between the piston portion 142 and the inner bottom surface of the inner cylinder 12, and the volume between the piston portion 142 and the airtight cover 13 is opposite. As a result of the increase and decrease, the air originally located between the piston portion 142 and the airtight cover 13 passes through the air hole 122 into the space between the outer cylinder 11 and the inner cylinder 12, and further enters the vial 91. Inside, the liquid medicine 92 in the vial 91 flows downward through the insertion needle 31 into the creation due to the excess air pressure.

Moreover, when the liquid medicine 92 flows in, the air in the medicine bottle 91 or the gas volatilized by the liquid medicine 92 itself may float above the liquid medicine 92 without moving downward to the push tube 10 due to the inverted relationship of the original creation. And mixing with the air entering the vial 91 through the intake pipe 112, and additionally, in order to completely separate the chemical liquid 92 from the mixed gas, when the chemical liquid 92 passes through the expansion provided with the water stop member 23 When the needle 22 is bored, the liquid medicine 92 cannot pass due to the water stop member 23, so that the reamer needle 22 having the water stop member 23 can only pass the gas, and further, since this can only allow the gas to pass The reamer 22 is in communication with the intake pipe 112 of the outer cylinder 11, so that even if the gas enters the pusher cylinder 10, it will pass through the intake pipe 112, along between the outer cylinder 11 and the inner cylinder 12. The internal space continues to flow in the direction of the airtight cover 13, and further flows into the space between the piston portion 142 and the airtight cover 13 through the air holes 122 provided in the inner cylinder 12.

At the same time, the liquid medicine 92 enters the medicine feeding tube 123 of the inner tube 12 through the other reamer 22 and enters the inside of the inner tube 12, so that the gas-liquid separation at the time of taking the medicine can be achieved.

Referring to FIG. 14 , when the medicine is taken out, the push tube 10 of the present invention is pulled out of the connecting seat 20, and the two reaming needles 22 are pierced one by one through the slits 117, 125 one by one due to the moment of pulling out. The rubber stoppers 114 and 124 are returned to the closed state, so that the liquid medicine 92 and the gas inside the push cylinder 10 do not accidentally flow out during the taking of the medicine, and at the same time, the reaming for allowing the liquid medicine 92 to flow is extracted. When the needle 22 is used, the second opening 222 can transmit the liquid medicine 92 remaining on the side wall of the reaming needle 22 and the elastic valve 24 to the inner space of the elastic valve 24 by the principle of negative pressure, thereby increasing the creation of the present invention. In addition, since the two first openings 221 and the second opening 222 have the same structure, only the positions thereof are different. Therefore, when the pusher 10 is pulled out, the residual liquid 92 passes through the second opening 222. When passing through the first opening 221, it is further sucked back by the first opening 221 to fully achieve the function of sucking in the residual chemical liquid.

Referring to FIG. 6 and FIG. 7 , in the second embodiment of the present invention, the connecting seat 20A is configured to pass the liquid medicine through the connection in the direction opposite to the use step in the push tube 10A after the medicine has been taken. The seat 20A is injected into the patient end, and the connecting ring 33A at the bottom end thereof can be screwed quickly. It is connected to the corresponding infusion tube, and in the second embodiment, since the process of injecting the medical liquid into the patient is involved, the position in which the water stop is originally placed in the second embodiment is one-way. Instead of valve 26A, the one-way valve 26A blocks air from flowing out of the present direction toward the injection direction to avoid inhaling air into the patient.

Referring to FIG. 8 and FIG. 9, in the third embodiment of the present invention, the bottom end of the connecting seat 20B is in communication with one of the branches 341B of the Y-shaped tube 34B, and the other branch 341B is additionally connected by a little bit, and The bottom ends of the two branches 341B are converged into the same tube and transferred to the patient. Therefore, through the connector 20B of the third embodiment, the user can transfer the drug to be injected together with the drip to the patient. As in the second embodiment, in the third embodiment, since the process of injecting the drug solution into the patient is involved, in the third embodiment, the position where the water stop member is originally placed is controlled by a check valve. Instead of 26B, the one-way valve 26B blocks air from flowing out of the present direction toward the injection direction to avoid inflating air into the patient's body.

Referring to FIG. 10 and FIG. 11 , in the fourth embodiment of the present invention, the same as the third embodiment, the third and fourth embodiments are designed to match the drip, but the fourth embodiment. The drip connection tube 352C is directly connected to a medicated water bottle or a medicated water bag, and is connected to the push tube of the present at one end of the adapter 351C, so that the liquid medicine of the present invention is thoroughly mixed with the medicinal solution of the medicated water bottle or the medicated water bag. Dropping down to the patient's end in a drip manner, in other words, the third embodiment is to inject the liquid to be added while the drip bag is dripping, and the fourth embodiment is to inject the liquid to be injected with another vial. Or the medicine bag is mixed to form a droplet, and then input to the patient end. In addition, since the fourth embodiment is also for the process of inputting the drug solution into the patient, the water stop member is also replaced with the check valve 26C. Change.

In the process of inserting, taking medicine and withdrawing, the creation of the dangerous needle has no external leakage, which makes the creation of the creation extremely safe. At the same time, the liquid medicine and the gas also all occur in the process of flowing through. The inside of the connecting cover 21 of the connecting seat 20, when the pusher 10 is pulled out, the pusher 10 and the connecting seat 20 are restored to a sealed state, so that the medicine is also highly sealed, so that the medical practitioner The staff can avoid the possibility of being contaminated by the drug. In addition, the creation is easy and fast because of the insertion and extraction, and the efficiency of the creation of the present invention can be improved. In summary, the creation is based on the structural improvement of the drug. It is designed for both safety, ease of use, and convenience.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present invention, and is not in any technical field. A person skilled in the art can make a few changes or modifications as equivalent embodiments of the technical content disclosed above without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of the present invention.

Claims (15)

A closed system dispensing device comprising a push barrel comprising an outer tube comprising an air inlet tube and a connecting hole, the air inlet tube projecting downwardly from a bottom surface of the outer tube, the air inlet tube a rubber plug is disposed adjacent to the lower end opening of the intake pipe, and is provided with a normally closed slit. The connecting hole is disposed on the bottom surface of the outer cylinder and spaced apart from the intake pipe; an inner cylinder is worn The inner cylinder further comprises an air hole and a medicine feeding tube, the air hole is disposed on the inner ring wall surface of the inner tube, and connects the inner space of the inner tube to the inner space of the outer tube The medicine tube is disposed on the bottom surface of the inner tube, and is disposed in the connecting hole of the outer tube. The rubber tube is disposed in the medicine tube adjacent to the lower end opening of the medicine tube, and is provided with a normal state. a closed cut; a push rod that extends up and down through the outer cylinder and the inner cylinder, the bottom end of the push rod is provided with a piston portion, the piston portion partitions the inner space of the inner cylinder into a non-communication Two parts; a connecting seat that is detachably attached to the Connecting, and comprising a connecting cover, comprising at least one external hole; two reaming pins, the two reaming pins are disposed in the connecting cover with the tip end thereof upward, and the two reaming pins respectively selectively penetrate the The slit of the rubber stopper of the medicine feeding tube and the slit of the rubber plug of the air inlet tube; each of the reaming needles further includes a separate inner space and a first opening, and each of the reaming needles The inner space is in communication with the at least one outer hole of the connecting cover, the first opening is disposed at a top end of the reaming pin; an elastic valve is a compressible elastic material, and the elastic valve is disposed on the connecting cover The elastic valve is selectively coated on the outer side of the two reaming needles. The elastic valve is provided with two notches. The two notches are respectively located above the two reaming needles, and the two notches are normally closed. State, and selectively penetrated by the two reaming needles; a water stop member disposed in the connecting cover and corresponding to the inner space of the reaming pin corresponding to the intake pipe. The closed system dispensing device according to claim 1, wherein the water stopping member is a hydrophobic filter paper. The closed system dispensing device according to claim 1 or 2, wherein the reaming needle corresponding to the feeding tube further comprises a second opening, the second opening being disposed on a side wall surface of the reaming needle, And located below the first opening. The closed system dispensing device according to claim 1 or 2, wherein the outer tube further comprises a cover and a retaining groove, the outer cover is formed around the periphery of the bottom end of the outer tube and extends vertically downward. The anti-slipping groove is recessed on the inner wall surface of the outer cover; the connecting cover of the connecting seat further comprises a foolproof protrusion protruding from the side wall surface of the connecting cover, the anti-dwelling bump Slidably fitted in the foolproof groove. The closed system dispensing device according to claim 1 or 2, wherein the outer tube further comprises an outer tube opening, the outer tube opening is disposed on a top surface of the outer tube; the inner tube further comprises an inner tube opening, The inner cylinder opening is disposed on the top surface of the inner cylinder, and the inner cylinder is inserted into the outer cylinder from the outer cylinder opening; further comprising an airtight cover and an airtight ring, wherein the airtight cover is disposed therein a cylinder and a top surface of the outer cylinder, and covering the outer cylinder opening and the inner cylinder opening, and clamping the outer cylinder and the inner cylinder, the airtight ring abutting the airtight bottom surface and the inner portion Between the top surfaces of the barrel opening. The closed system dosing device according to claim 1 or 2, further comprising a leakage preventing member disposed at a bottom of the connector. The closed system dispensing device according to claim 1 or 2, wherein the outer tube further comprises a first connecting member; The connecting cover further includes a second connecting member detachably connected to the first connecting member. The sealing system dispensing device according to claim 7, wherein the first connecting member comprises a sliding sleeve and two elastic buckles, and the sliding sleeve is slidably sleeved on the outer cylinder, and the two elastic buckles are disposed on the outer sleeve The opposite sides of the bottom of the outer tube are bent and the outer side of the outer tube is bent; the second connecting member comprises two hook grooves, the two hook grooves are horizontally recessed inwardly on the connecting cover, and the The position of the two fastening hooks corresponds to the position of the two elastic buckles; wherein, when the outer cylinder is connected with the connecting seat, the sliding sleeve slides downward and presses the two elastic buckles, so that the two elastic buckles Join the corresponding two hook grooves. The sealing system dispensing device according to claim 7, wherein the first connecting member comprises two latching hooks, and the two latching hooks are formed on opposite inner side surfaces of the bottom end of the outer cylinder; The two connecting members include two hook grooves, the two hook grooves are horizontally recessed in the connecting cover, and the positions of the two hook grooves correspond to the positions of the two snap hooks; When the outer cylinder is connected to the connecting seat, the two snap hooks are engaged in the corresponding two hook grooves. The sealing system dispensing device according to claim 7, wherein the first connecting member comprises two hooks, the two hooks are disposed on opposite sides of the bottom of the outer tube, and each of the hooks has a buckle And a pressing portion formed on the lower side of the pressing portion, and the buckle portion is coupled to the pressing portion; the second connecting member comprises two cylinders, and the two cylinders are formed on the connecting portion The top end of each of the cylinders is hook-shaped; wherein, when the outer cylinder is connected to the connecting seat, the two hook portions are fastened to the corresponding top ends of the two cylinders. A closed system dispensing device comprising a push barrel comprising an outer tube comprising an air inlet tube and a connecting hole, the air inlet tube projecting downwardly from a bottom surface of the outer tube, the air inlet tube a rubber plug is disposed adjacent to the lower end opening of the intake pipe, and is provided with a normally closed slit. The connecting hole is disposed on the bottom surface of the outer cylinder and spaced apart from the intake pipe; an inner cylinder is worn The inner cylinder further comprises an air hole and a medicine feeding tube, the air hole is disposed on the inner ring wall surface of the inner tube, and connects the inner space of the inner tube to the inner space of the outer tube The medicine tube is disposed on the bottom surface of the inner tube, and is disposed in the connecting hole of the outer tube. The rubber tube is disposed in the medicine tube adjacent to the lower end opening of the medicine tube, and is provided with a normal state. a closed cut; a push rod that extends up and down through the outer cylinder and the inner cylinder, the bottom end of the push rod is provided with a piston portion, the piston portion partitions the inner space of the inner cylinder into a non-communication Two parts; a connecting seat that is detachably attached to the Connecting, and comprising a connecting cover, comprising at least one external hole; two reaming pins, the two reaming pins are disposed in the connecting cover with the tip end thereof upward, and the two reaming pins respectively selectively penetrate the The slit of the rubber stopper of the medicine feeding tube and the slit of the rubber plug of the air inlet tube; each of the reaming needles further includes a separate inner space and a first opening, and each of the reaming needles The inner space is in communication with the at least one outer hole of the connecting cover, the first opening is disposed at a top end of the reaming pin; an elastic valve is a compressible elastic material, and the elastic valve is disposed on the connecting cover The elastic valve is selectively coated on the outer side of the two reaming needles. The elastic valve is provided with two notches. The two notches are respectively located above the two reaming needles, and the two notches are normally closed. State, and selectively penetrated by the two reaming needles; a one-way valve disposed in the connecting cover and corresponding to the inner space of the reamer corresponding to the intake pipe, the one-way valve allowing air to flow through the unidirectional direction only in a single direction valve. The closed system dispensing device according to claim 11, wherein the connector further comprises an insertion needle and a vial engagement portion, the insertion needle being disposed at a bottom end of the connection cover, and the connection cover and the connector The two reaming pins are connected and connected to each other, and the at least one external hole is formed through the insertion pin, and the bottle engaging portion is disposed on the bottom surface of the connecting cover. The closed system dispensing device according to claim 11, wherein the connector further comprises a connecting ring projecting downwardly from a bottom surface of the connecting cover, and an inner wall surface of the connecting ring is formed with an internal thread. The closed system dispensing device according to claim 11, wherein the connector further comprises a Y-shaped tube, one end of the Y-shaped tube being disposed on a bottom surface of the connecting cover and communicating with the at least one external hole. The closed system dispensing device according to claim 11, wherein the connector further comprises a drop connector, the drop connector comprising an adapter and a drop connector, the side wall of the adapter connecting the connection The bottom surface of the cover is in communication with the at least one external hole, and the drop connection tube is disposed at one end of the adapter.