WO2017107704A1

WO2017107704A1 - Integral medicine compounding mechanism and medicine compounding method for injection powder bottle

Info

Publication number: WO2017107704A1
Application number: PCT/CN2016/105857
Authority: WO
Inventors: 郑永强; 柏轲
Original assignee: 成都杰仕德科技有限公司
Priority date: 2015-12-22
Filing date: 2016-11-15
Publication date: 2017-06-29
Also published as: CN105411850A

Abstract

An integral medicine compounding mechanism and a medicine compounding method for an injection powder bottle. The medicine compounding mechanism comprises an infusion bag needle (3) and an injection powder bottle needle (4). The infusion bag needle (3) is a dual-hole needle comprising a first through hole (31) and a second through hole (32). The first through hole (31) and the second through hole (32) are respectively connected to a first catheter (9) and a second catheter (10). The injection powder bottle needle (4) is a dual-hole needle comprising a third through hole (41) and a fourth through hole (42). The third through hole (41) and the fourth through hole (42) are respectively connected to a third catheter (7) and a fourth catheter (8). A first check valve (11) for allowing liquid to flow from the first catheter (9) to the third catheter (7) is disposed between the first catheter (9) and the third catheter (7). A second check valve (12) for allowing liquid to flow from the fourth catheter (8) to the second catheter (10) is disposed between the second catheter (10) and the fourth catheter (8). The medicine compounding mechanism has a simple structure, is convenient to connect and has a high medicine compounding efficiency; because the medicine compounding structures are connected as a whole, the medicine compounding mechanism can be integrally replaced at a time after medicine compounding is completed, and replacement time is saved; the medicine compounding procedure is also simplified, an infusion bag (1) and an injection powder bottle (2) can be connected at a time, operations are easy, the medicine compounding efficiency is greatly improved, and liquid medicine is prevented from being splashed in the medicine compounding process.

Description

Powder needle bottle integrated dispensing mechanism and dispensing method

Technical field

The invention relates to the field of medical equipment, in particular to a powder dispensing bottle integrated dispensing mechanism and a dispensing method.

Background technique

The powder bottle is a small glass container for containing liquid medicine, and the structure thereof includes a bottle body and a bottle head, and a bottle neck located in a concave portion between the bottle body and the bottle head, and the capacity is generally 1-20 ml, which is generally used for injecting medicine. The bottle cap of the bottle is generally made of rubber, and a layer of metal aluminum is sealed on the rubber.

At present, when dispensing a powder bottle, a hand-held powder bottle is generally inserted into a powder bottle with a syringe needle that has been previously pumped with a drug solution, and then the drug solution is injected inwardly, the needle is pulled out, and shaken by hand. The liquid medicine in the powder bottle is finally sucked out through the syringe. This kind of dispensing is carried out by manually holding a powder bottle. In a large number of dispensing occasions, the labor intensity is high, and the hand-held powder needle bottle inserts the needle into the bottle stopper, which also has certain dangers, and the needle is not correct and is easy to cause The injury of medical staff.

To this end, Chinese Patent Publication No. CN104248513A discloses a dispensing method for a powder needle bottle and a one-way valve type dispensing mechanism, as shown in FIGS. 1-6, the one-way valve type dispensing mechanism, including a one-way valve-one, one-way Valve 2, one end of one-way valve one 6 and one end of one-way valve two 7 are respectively connected with a liquid guiding tube 8 and a liquid guiding tube 2, the other end of the one-way valve one, and the other end of the one-way valve The interface 1 and the interface 2 on the transitional container 5, wherein the flow direction of the check valve 6 is from the transition container 5 to the liquid pipe 8 , and the flow direction of the check valve 2 flows from the liquid pipe 2 to the transition container 5 . The interface of the transition container 5 is connected to the air pump 6; the end of the catheter 8 is provided with a needle 3, and the end of the catheter 2 is provided with a needle 2 4. The dispensing mechanism includes preparing the powder needle bottle 1 when dispensing, and then inserting the needle head 3 and the needle head 4 into the powder needle bottle 1 and the infusion bag 2, respectively, and sucking the liquid medicine in the infusion bag 2 to the transition container 5, and the transition The liquid medicine in the container 5 is injected into the powder needle bottle 1, and the needle one 3 and the needle two 4 are pulled out at the same time, and the needle position is exchanged, and the powder needle bottle 1 and the infusion bag 2 are respectively respectively. The needle 2 and the needle 3 are inserted, and the liquid medicine in the powder bottle 1 is again sucked into the transition container 5, and finally the liquid medicine in the transition container 5 is injected into the infusion bag 2 to complete the dispensing.

The problem of the one-way valve type dispensing mechanism is that after the needle needle bottle 1 and the infusion bag are respectively inserted into the needle head 3 and the needle head 4, and the powder needle bottle 1 is injected, the needle 3 and the needle need to be pulled out. Second, the needle position is exchanged, and the powder needle bottle 1 and the infusion bag 2 are separately inserted again, so that the liquid medicine in the powder needle bottle 1 can be sucked into the infusion bag 2. When the needle is inserted and removed twice, not only the operation is troublesome, but also the dispensing time is increased, which affects the dispensing efficiency, and the insertion and removal of the needle may cause the two needles to spray the powder in the powder bottle 1 and the infusion bag 2, resulting in waste. The quantity is inaccurate, and even if the needle is inserted and removed, the damage to the needle is easy to replace, which increases the cost of dispensing.

Summary of the invention

The object of the present invention is to solve the problem of requiring two or more insertions and removals of the needle when the powder needle bottle is dispensed by the one-way valve type dispensing mechanism in the prior art, which is not only troublesome to operate, but also increases the dispensing time and affects the dispensing efficiency. Moreover, it is easy to spray the liquid medicine, cause waste, inaccurate dispensing amount, and even damage the needle to improve the cost of dispensing, and provide a powder dispensing bottle integrated dispensing mechanism, and a dispensing method of the dispensing mechanism.

In order to achieve the above object, the technical solution adopted by the present invention is:

The invention relates to a powder needle bottle integrated dispensing mechanism, comprising an infusion bag needle and a powder needle bottle needle, wherein the infusion bag needle is a double hole needle comprising a through hole 1 and a through hole 2, wherein the through hole one and the through hole two are respectively connected a conduit 1 and a conduit 2, the needle needle is a double-hole needle including a through hole 3 and a through hole 4, the through hole 3 and the through hole 4 are respectively connected to the conduit 3 and the conduit 4; the conduit 1 and the conduit 3 A one-way valve is provided between the conduit two and the conduit four for fluid flow from the conduit to the conduit two.

The powder needle bottle integrated dispensing mechanism connects the conduit one through the one-way valve, the third conduit forms a one-way flow of the fluid, the one-way valve two connects the conduit two, and the conduit four forms a one-way flow of the fluid, wherein the conduit one and The catheter two is connected with the infusion bag needle, the catheter three and the catheter four are connected with the powder needle, forming an integral dispensing mechanism, and the dispensing mechanism is directly connected to the infusion bag and the powder needle bottle, and during the dispensing process, the infusion bag needle is not required to be pulled out again. And the needle needle bottle, or the exchange infusion bag and the powder needle bottle station, can connect the infusion bag and the powder needle bottle at one time. During operation, firstly, the inverted infusion bag and the erectile powder bottle are kept, the infusion bag is squeezed, and the positive air pressure in the infusion bag is used to inject the drug into the powder bottle through the catheter one, the one-way valve one and the third tube; then relax Infusion bag, because the liquid medicine is injected into the powder bottle, the air pressure in the powder bottle is increased, and the air is returned to the infusion bag through the catheter 4, the check valve 2 and the catheter 2; the infusion bag is repeatedly squeezed and relaxed, Until the powder bottle is filled with the required volume of the drug solution; then the entire infusion bag and the powder bottle can be turned over, that is, the inverted powder bottle and the erectile infusion bag are kept, and the infusion bag needle is kept in contact with the infusion bag air; And relax the infusion bag, the air in the infusion bag enters the powder needle bottle through the conduit one, the one-way valve one and the third conduit, and the positive air pressure in the powder needle bottle returns the liquid through the conduit four, the one-way valve two and the second conduit to the infusion bag Until the liquid in the powder bottle is completely returned to the infusion bag. Therefore, by using the dispensing mechanism, by squeezing and relaxing the infusion bag, the air is circulated in the dispensing mechanism, and the liquid in the infusion bag can be injected into the powder bottle, and after the agent in the powder bottle is further mixed, The medicine liquid is recirculated into the infusion bag; the dispensing mechanism has the advantages of simple structure, convenient connection and high dispensing efficiency; since the dispensing structure is connected as a whole, the dispensing mechanism after the dispensing is completed can be replaced at one time, thereby saving replacement time.

Preferably, the positions of the infusion bag needle and the powder needle bottle are mutually replaceable, that is, the infusion bag needle is connected to the catheter three and the catheter four, and the powder needle needle is connected to the catheter one and the catheter two.

The position of the infusion bag needle and the powder needle bottle of the dispensing mechanism can be interchanged, which means that the structure, size and use of the infusion bag needle and the powder needle bottle can be intercommunicated, that is, the two needles included in the dispensing mechanism, each needle Both infusion bags and powder needle bottles can be inserted, regardless of the direction, which improves the convenience of the dispensing mechanism.

Preferably, the dispensing mechanism further includes a rotating member that can rotate the entire dispensing mechanism.

The dispensing mechanism can also realize the whole rotation of the infusion bag and the powder needle bottle through a rotating component, thereby realizing the inverted state of the infusion bag and the erect state of the powder needle bottle, or the inverted state of the infusion bag erect and the powder needle bottle, which is convenient for squeezing. The infusion bag injects the liquid into the powder bottle, or injects air into the powder bottle to recirculate the powder bottle To the infusion bag.

Further preferably, the rotating member includes a support plate for fixing the entire dispensing mechanism, the support plate being rotatable in a vertical plane by motor driving.

The rotating component fixes all components of the dispensing mechanism, including the infusion bag needle and the infusion bag, the powder needle bottle and the powder needle bottle, four conduits and two one-way valves on the support plate through a support plate, and the motor shaft is connected. The support plate and the motor rotate to drive the support plate so that the components of the entire dispensing mechanism are flipped in the forward and reverse directions of 180 degrees, and the reliability is high.

Preferably, the infusion bag needle or/and the powder needle bottle needle is provided with a chuck 1 or/and a chuck 2 for facilitating clamping, and the clamping device capable of being adapted can realize automatic insertion and removal of the infusion bag needle and the powder needle. Bottle needle.

Preferably, the dispensing mechanism further comprises a pressing member capable of squeezing the infusion bag, and the pressing member can automatically squeeze the infusion bag liquid during the dispensing process of the dispensing mechanism, so that the liquid can smoothly enter the catheter. The powder needle bottle is finally injected into the first and third conduits, as well as the second, second, and fourth conduits.

Preferably, the pressing member comprises a hanging plate for fixing, the hanging plate is connected with a rear clamping plate, the hanging plate is fixed with a guide rail and a motor, and the rotating shaft of the motor is connected with the wire arranged parallel to the guiding rail a rod passing through the guide rail and the screw rod; an infusion bag is disposed between the front plate and the rear plate, the motor drives the screw to rotate, and the front plate is adjacent to the rear plate or Keep away from the infusion bag to squeeze or loosen.

The invention also provides a dispensing method of a powder needle bottle integrated dispensing mechanism, comprising the above-mentioned powder needle bottle integrated dispensing mechanism, the dispensing method comprising the following steps:

Step 1. Prepare, insert the infusion bag needle into the infusion bag, and insert the powder needle bottle needle into the powder needle bottle. At this time, the infusion bag keeps the bottle mouth facing downward, and the powder needle bottle is in the bottle mouth upward. a state in which the infusion bag needle remains in contact with the drug solution in the infusion bag;

Step 2: injecting the liquid medicine into the powder needle bottle, that is, using a plurality of times of squeezing the infusion bag and relaxing the infusion bag, the liquid medicine in the infusion bag sequentially flows into the powder through the catheter one, the one-way valve one and the third tube Needle bottle;

Step 3: Turning the infusion bag and the powder needle bottle, the infusion bag is turned over so that the bottle mouth is in an upright state, the powder bottle is turned over so that the bottle mouth is in an inverted state, and the infusion bag needle is adjusted. Contacting the tip of the needle with the air condition in the infusion bag;

Step 4: Squeeze and loosen the infusion bag several times, that is, each time the infusion bag is squeezed, the air in the infusion bag sequentially enters the catheter one, the one-way valve one and the third tube and flows into the powder needle bottle; each time the infusion is relaxed When the bag is in the air, the positive air pressure in the powder bottle is injected into the infusion bag through the catheter 4, the check valve 2 and the catheter 2 in sequence, and the circulation action of the infusion bag is repeated several times until the powder needle All the liquid medicine in the bottle is injected into the infusion bag;

Step 5: Remove the powder bottle and the infusion bag to complete the dispensing.

The dispensing method of the integral dispensing mechanism of the powder bottle bottle, in the preparation process, the first one is connected through the one-way valve, the third is the third, the two-way valve is connected to the second and the fourth, and the second and the second are connected to the infusion bag. The catheter three and the catheter four are connected to the powder needle to form a unitary integral dispensing mechanism.

When using the dispensing mechanism for dispensing, firstly, the inverted infusion bag and the erectile powder bottle are kept, the infusion bag needle contacts the liquid in the infusion bag, and the infusion bag is squeezed, and the positive air pressure in the infusion bag passes the liquid through the infusion bag needle, The catheter 1 , the check valve 1 and the catheter 3 are injected into the powder needle bottle to mix the medicament; then the infusion bag is relaxed, and since the liquid is injected into the powder needle bottle, the air of the dispensing mechanism is internally circulated, so the air pressure in the powder needle bottle is strong It is larger than the air pressure in the infusion bag, so the air in the powder bottle is returned to the infusion bag through the catheter 4, the check valve 2 and the catheter 2; the infusion bag is repeatedly squeezed and relaxed until the powder bottle is filled with the required liquid volume. Then, the entire infusion bag and powder bottle can be turned over, that is, the inverted powder bottle and the erectile infusion bag are kept, and the infusion bag needle is kept in contact with the infusion bag air; the infusion bag is alternately squeezed and relaxed, and the air in the infusion bag passes through the catheter. 1. One-way valve one and three conduits enter the powder needle bottle. The positive air pressure in the powder needle bottle returns the liquid through the conduit four, the one-way valve two and the second conduit to the infusion bag until the liquid medicine in the powder needle bottle is all returned. To the infusion bag. Therefore, by using the dispensing mechanism, by squeezing and relaxing the infusion bag, the air is circulated in the dispensing mechanism, and the liquid in the infusion bag can be injected into the powder bottle, and after the agent in the powder bottle is further mixed, medicine The liquid is refluxed into the infusion bag; during the whole process of dispensing the drug, it is not necessary to pull out the infusion bag needle and the powder needle bottle again, or exchange the infusion bag and the powder needle bottle station, and the disposable infusion bag can be realized. The powder bottle and the liquid medicine in the infusion bag are smoothly injected into the powder needle bottle, the dispensing method is simple, the operation is convenient, the dispensing process is simplified, the dispensing efficiency is greatly improved, and the loss of the liquid medicine during the dispensing process is avoided. .

Further preferably, steps two and three are repeated a plurality of times until the inner space of the powder bottle is filled with the liquid medicine.

The second step is to inject the liquid medicine in the infusion bag into the powder bottle for a plurality of times, and the agent in the powder bottle can be fully or completely dissolved as much as possible, so that all of the medicine can be input into the infusion bag.

Preferably, the duration of each step of injecting the infusion bag in step two or/and step four is 0.5-2 s.

In the above step 2 or step 4, each time the infusion bag is squeezed, or when

steps

2 and 4 are squeezed into the infusion bag, the time is controlled in the duration of the extrusion infusion for 0.5-2 s, the infusion bag is squeezed and the infusion is relaxed. The bags alternately, which also facilitates the flow rate of air circulating in the four conduits, improving the dispensing efficiency.

Preferably, the duration of each time the infusion bag is squeezed in the second step and the fourth step is equal to the duration of each loosening of the infusion bag, both being 1-2 s, so that the pressing component can be squeezed at the same frequency to the infusion bag. Or loosen to improve the stability during dispensing.

In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

1. The integrated dispensing mechanism of the powder needle bottle of the present invention, through a one-way valve, a connecting conduit, a third conduit forming a one-way flow of fluid, and a one-way valve connecting the second conduit and the fourth conduit to form a one-way flow of fluid, wherein The catheter 1 and the catheter 2 are connected to the infusion bag needle, and the catheter 3 and the catheter 4 are connected to the powder needle bottle to form an integral dispensing mechanism. The dispensing mechanism is directly connected to the infusion bag and the powder needle bottle, and the dispensing process does not need to be pulled out again. Infusion bag needle and powder needle bottle needle, or exchange infusion bag and powder needle bottle station, only need one-time infusion bag and powder needle bottle, by squeezing or infusion bag, the air circulation in the dispensing mechanism, Dissolving the liquid medicine in the infusion bag into the powder needle bottle at one time, and further mixing the drug in the powder bottle into the infusion bag; the dispensing mechanism is simple in structure, convenient in connection, and high in dispensing efficiency; The medicine structure is connected into a whole body, and the dispensing mechanism after the medicine is completed can be completely replaced at one time, which saves the replacement time;

2. The positions of the infusion bag needle and the powder needle bottle of the powder dispensing bottle integrated dispensing mechanism of the present invention can be interchanged, that is, the structure, size and use of the infusion bag needle and the powder needle bottle can be intercommunicated, that is, the dispensing mechanism includes The two needles, each needle can be inserted into the infusion bag or the powder needle bottle, regardless of the direction, which improves the convenience of the dispensing mechanism;

3. The dispensing mechanism of the present invention further comprises a pressing member capable of squeezing the infusion bag, wherein the pressing member can automatically squeeze the infusion bag liquid during the dispensing process of the dispensing mechanism, so that the liquid can smoothly enter The catheter one, the one-way valve one and the third tube, and finally the powder needle bottle, improve the automatic dispensing efficiency;

4. The dispensing method of the integrated dispensing mechanism of the powder bottle bottle according to the present invention adopts an integrated dispensing mechanism, firstly maintaining the inverted infusion bag and the erectile powder bottle, and the infusion bag needle contacts the liquid in the infusion bag, Squeeze the infusion bag, the positive air pressure in the infusion bag is used to inject the drug into the powder bottle through the infusion bag needle, the catheter one, the one-way valve one and the third tube; then relax the infusion bag, because the powder bottle is filled with The liquid of the medicine solution is internal circulation, so the air pressure in the powder bottle is stronger than the air pressure in the infusion bag, so the air in the powder bottle is returned to the infusion bag through the catheter four, the check valve 2 and the catheter two; Repeat the squeeze and loosen the infusion bag until the powder bottle is filled with the required volume of the drug solution; then the entire infusion bag and the powder bottle can be turned over, that is, the inverted powder bottle and the erectile infusion bag are kept, and the infusion bag needle is kept. The infusion bag is in air contact; the infusion bag is alternately squeezed and relaxed again, and the air in the infusion bag enters the powder needle bottle through the catheter one, the one-way valve one and the third tube, and the positive air pressure in the powder needle bottle passes the liquid through the catheter. Valve 2 and conduit 2 are returned to the infusion bag until the liquid medicine in the powder needle bottle is completely returned to the infusion bag; the dispensing mechanism, by squeezing and relaxing the infusion bag, adopts the principle of internal circulation of air in the dispensing mechanism, The medicine liquid in the infusion bag is injected into the powder needle bottle, and after the medicine in the powder bottle is further mixed, the medicine liquid is refluxed and injected into the infusion bag, and the medicine method is convenient to connect, and the infusion bag and the powder needle bottle can be connected at one time. Simple, the dispensing process is simplified, the dispensing efficiency is greatly improved, and the loss of the liquid medicine during the dispensing process is also avoided.

BRIEF DESCRIPTION OF THE DRAWINGS:

1 is a schematic view of a prior art check valve dispensing mechanism inserted into a powder needle bottle and an infusion bag for preparation of a drug;

2 is a schematic view showing a prior art dispensing mechanism for injecting a liquid medicine in an infusion bag into a powder bottle through a negative pressure;

3 is a schematic view of the prior art dispensing mechanism for extracting the needle 1 and the needle 2 from the powder needle bottle and the infusion bag respectively;

4 is a schematic view showing the needle dispensing position of the powder dispensing needle bottle and the infusion bag of the prior art dispensing mechanism;

Figure 5 is a schematic view of the prior art when the liquid medicine in the powder bottle bottle is sucked into the transition container by a negative pressure;

6 is a schematic view of a prior art when a transition container liquid is injected into an infusion bag by a positive pressure;

Figure 7 is a schematic view showing the structure of the integral dispensing mechanism of the powder bottle according to the present invention;

Figure 8 is a schematic view showing the structure of the double-hole structure of the infusion bag needle of Figure 7;

Figure 9 is a schematic view showing the structure of the double-hole structure of the needle of the powder needle of Figure 7;

Figure 10 is a schematic view of the powder dispensing bottle integrated dispensing mechanism prepared for dispensing according to the present invention;

Figure 11 is a schematic view of the first extrusion of the infusion bag of Figure 10 when the drug solution is injected into the powder bottle;

Figure 12 is a schematic view of the injection of the liquid medicine into the powder bottle after multiple times of squeezing and relaxing the infusion bag;

Figure 13 is a schematic view of the entire dispensing mechanism rotated by 180 degrees by a rotating member;

Figure 14 is a schematic view of re-squeezing and relaxing the infusion bag gas into the powder needle bottle to generate a positive pressure to return the drug solution to the infusion bag;

Figure 15 is a schematic view of the rotary dispensing device returning to the initial position and pulling out the powder bottle bag after the powder needle bottle is filled into the input bag;

Figure 16 is a schematic view showing the structure of the pressing member of the present invention when it is mounted on a pressing member;

Figure 17 is a side view of Figure 16 .

Marked in Figure 1-6:

1, powder needle bottle, 2, infusion bag, 3, needle one, 4, needle two, 5, transition container, 6, one-way valve one, seven, one-way valve two, 8, liquid guide tube one, 9, guide Liquid tube two;

Marked in Figure 7-17:

1, infusion bag, 2, powder bottle, 3, infusion bag needle, 31, through hole one, 32, through hole two, 33, chuck one, four, powder needle bottle needle, 41, through hole three, 42, Through hole four, 43, two chucks, 5, extruded parts, 51, front splint, 52, rear splint, 53, screw, 54, rail, 55, motor, 56, hanging board, 6, support board, 7 , conduit three, 8, conduit four, 9, conduit one, 10, conduit two, 11, one-way valve one, twelve, one-way valve two.

detailed description

The present invention will be described in detail below with reference to the accompanying drawings.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in FIG. 7, a powder dispensing bottle integrated dispensing mechanism includes an infusion bag needle 3 and a powder needle bottle needle 4, wherein the infusion bag needle 3 is a double-hole needle including a through hole 31 and a through hole 32, such as As shown in FIG. 8, the through hole 31 and the through hole 32 are respectively connected to the catheter 9 and the catheter 2; as shown in FIG. 9, wherein the powder needle 4 is a double hole including the through hole 41 and the through hole 42. The needle, the through hole 41 and the through hole 42 are respectively connected to the conduit 3 and the conduit 4; respectively, a fluid (including liquid and gas) between the conduit 9 and the conduit 3 can be flowed from the conduit 9 to the conduit 3 To valve #11, a fluid (including liquid and gas) is provided between conduit two 10 and conduit four 8 to flow from conduit 4 to check valve 12 of conduit two 10.

The position of the infusion bag needle 3 and the powder needle bottle needle 4 of the dispensing mechanism can be replaced with each other, that is, the infusion bag needle 3 The position of the replaceable needle bottle needle 4 is connected to the catheter three 7 and the catheter four 8, while the powder needle needle 4 can replace the position of the infusion bag needle 3 to connect the catheter one 9 to the catheter two 10, which is equivalent to the infusion bag needle 3 and the powder needle The bottle needle 4 has the same structure and size and can be used for each other, that is, two needles included in the dispensing mechanism, each needle can be inserted into the infusion bag 1 or the powder needle bottle 2, regardless of the direction, without paying special attention to the two needles during dispensing The adaptation object improves the convenience of the dispensing mechanism.

The above dispensing mechanism further includes a rotating member that can invert the powder needle bottle needle 4 together with the powder needle bottle 2 in a vertical plane, as shown in FIGS. 16 and 17, wherein the structure of the rotating member includes the support plate 6, The structure of the motor and the shaft is not shown, all the components of the dispensing mechanism, including the infusion bag needle 3 and the infusion bag 1, the powder needle 4 and the powder bottle 2, the four catheters and the two check valves are fixed on the support plate. 6 , the motor shaft is connected to the support plate, and the motor rotates to drive the support plate 6 so that the components of the entire dispensing mechanism are reversed in the forward and reverse directions of 180 degrees, respectively, and the powder needle bottle 2 that has been injected with the medical liquid can be inverted from the forward direction. The infusion bag 1 in the initial position can be forwarded from the inverted rotation position, and the needle needle 4 is inserted into the position of the bottle cap of the powder needle bottle, so as to more fully and thoroughly inject the liquid medicine in the powder bottle 2 into the infusion bag 1 Improve dispensing efficiency and high reliability.

The above dispensing device further includes a pressing member 5 for squeezing the infusion bag, as shown in Figs. 16, 17, the pressing member 5 includes a hanging plate 56 for fixing to the rotating device, and the rear plate is attached to the hanging plate 56 51, the hanging plate 56 is fixed with a guide rail 54 and a motor 55. The rotating shaft of the motor 55 is connected with the screw rod 53, the screw rod 53 is disposed in parallel with the guide rail 54, the front clamping plate 52 passes through the guiding rail 54 and the screw rod 53, and the rear clamping plate 51 Parallel; the infusion bag 1 is disposed between the front plate 52 and the rear plate 51, the motor 55 drives the screw 53 to rotate, and the front plate 52 is close to or away from the rear plate 51, and the infusion bag 1 is squeezed or loosened. Therefore, the pressing member 5 can automatically press or loosen the liquid medicine of the infusion bag 1 during the dispensing process of the dispensing device, so that the liquid can smoothly enter the catheter 9, the check valve 11 and the catheter 3, and finally inject. Powder bottle 2

In order to facilitate the clamping of the infusion bag needle 3 and the powder needle bottle needle 4, automatic dispensing is provided, and a chuck head 33 and a chuck head 43 are provided on the infusion bag needle 3 and the powder needle bottle needle 4 for easy fitting clamping. The device can realize automatic insertion and removal of the infusion bag needle 3 and the powder needle bottle needle 4.

The powder needle bottle integrated dispensing mechanism is connected to the catheter one through the one-way valve -11, the third three of the catheter, the two-way valve two 12, the second tube 10, and the fourth tube 8, wherein the catheter one 9 and the second tube 10 are connected to the infusion bag needle. 3. As shown in Fig. 10, the catheter three 7 and the catheter four 8 are connected to the powder needle 4 to form a unitary dispensing mechanism. The dispensing mechanism can directly connect the infusion bag 1 and the powder needle bottle 2. When dispensing, firstly, the inverted infusion bag 1 and the erectile powder bottle 2 are kept, and the infusion bag 1 is squeezed, and the positive air pressure in the infusion bag 1 passes the drug solution through the catheter. 9. The check valve 11 and the conduit 3 are injected into the powder bottle 2 to mix the medicament; then the infusion bag 1 is relaxed. Since the liquid medicine is injected into the powder bottle 2, the air pressure in the powder bottle 2 is increased, and the air is increased. Return to the infusion bag 1 through the catheter 4, the check valve 2 12 and the catheter 2; repeatedly squeeze and loosen the infusion bag 1 until the powder bottle 2 is filled with the required liquid volume; then the entire infusion bag 1 And the powder needle bottle 2 is turned over, that is, the inverted powder needle bottle 2 and the erecting infusion bag 1 are kept, and the infusion bag needle 3 is kept in air contact with the infusion bag 1; the infusion bag 1 is alternately squeezed and relaxed again, and the air in the infusion bag 1 is passed through the catheter. 9. The check valve 11 and the conduit 3 7 enter the powder bottle 2, and the positive air pressure in the powder bottle 2 returns the liquid through the conduit 4, the check valve 12 and the catheter 2 to the infusion bag 1 until The liquid medicine in the powder bottle 2 is completely returned to the infusion bag 1.

Therefore, using the dispensing mechanism, during the dispensing process, it is not necessary to pull out the infusion bag needle 3 and the powder needle bottle needle 4, or exchange the infusion bag 1 and the powder needle bottle 2 station, and the infusion bag 1 and the powder can be connected at one time. Needle bottle 2; by squeezing and relaxing the infusion bag 1, the air is circulated in the dispensing mechanism, and the liquid medicine in the infusion bag 1 can be injected into the powder needle bottle 2, and after the medicine in the powder bottle 2 is further mixed, The medicine liquid is recirculated into the infusion bag 1; the dispensing mechanism has a simple structure, convenient connection and high dispensing efficiency; since the dispensing structure is connected as a whole, the dispensing mechanism after the dispensing is completed can be replaced at one time, thereby saving replacement time.

It should be noted that the integral meaning of the integrated dispensing mechanism means that the components are components that have been connected to each other. In use, only the infusion bag needle 3 needs to be inserted into the input bag 1, and the powder needle 4 is inserted into the powder bottle. 2 can be used, and it is not necessary to complete the connection such as the catheter one 9, the catheter two 10 and the infusion bag needle 3 can be directly used for dispensing.

Example 2

Step 1. Prepare, as shown in Fig. 10, insert the infusion bag needle 3 into the infusion bag 1, and insert the powder needle bottle 4 into the powder needle bottle 2. At this time, the infusion bag 1 keeps the inverted state of the bottle mouth downward, the powder needle bottle 2 is in an upright state with the bottle mouth facing upward, and the infusion bag needle 3 is kept in contact with the liquid medicine state in the infusion bag 1;

Step 2: Injecting the liquid medicine into the powder needle bottle 2, as shown in Figs. 11 and 12, that is, using at least one time of squeezing the infusion bag 1 and relaxing the infusion bag 1 to squeeze and relax the circulation action of the infusion bag 1, the inside of the infusion bag 1 The liquid medicine flows into the powder needle bottle 2 through the conduit 9, the check valve 11 and the conduit 3 7 in sequence;

Step 3: Turn the infusion bag 1 and the powder bottle 2, as shown in FIG. 13, the infusion bag 1 is turned over so that the bottle mouth is in an upright state, and the bottle is turned over to make the bottle mouth down. State, and adjust the infusion bag needle 3 to contact the tip of the needle with the air state in the infusion bag 1;

Step 4: Squeeze and loosen the infusion bag 1 several times, as shown in Fig. 14, that is, each time the infusion bag 1 is squeezed, the air in the infusion bag 1 sequentially enters the catheter one, the one-way valve one 11 and the third three. And into the powder needle bottle 2; each time the infusion bag 1 is relaxed, the positive air pressure in the powder bottle 2 will inject the liquid medicine in the powder bottle 2 through the conduit 4, the check valve 12 and the catheter 2 into the infusion bag 1 Inside, through several cycles of squeezing and relaxing the infusion bag 1, until the liquid medicine in the powder bottle 2 is completely injected into the infusion bag 1;

Step 5: Remove the powder bottle 2 and the infusion bag 1 to complete the dispensing, as shown in FIG.

In order to dissolve the medicine in the powder bottle 2 completely or completely, all the ingredients are input into the infusion bag 1 and the liquid medicine in the infusion bag 1 is injected into the powder bottle 2 a plurality of times, and the

steps

2 and 4 can be repeated until the powder needle is The medicament in the bottle 2 is completely dissolved and input into the infusion bag 1, so that it is all input into the infusion bag.

In the

above steps

2 and 4, the duration of each infusion of the infusion bag 1 is 0.5-2 s, and the duration of the infusion bag 1 is relaxed for 0.5-3 s each time, and the squeeze infusion bag 1 and the relaxed infusion bag 1 are alternately performed. Accelerate the flow rate of the four intracavity liquid or air circulation, and improve the dispensing efficiency. In addition, the duration of each infusion of the infusion bag 1 in

steps

2 and 4 is equal to the duration of each infusion of the infusion bag 1, which is 1-2 s, which facilitates the pressing of the component 5 at the same frequency to the infusion bag. 1 squeeze or loosen to improve the dispensing Stability in the process.

The dispensing method of the powder needle bottle integrated dispensing mechanism firstly holds the inverted infusion bag 1 and the erectile powder bottle 2, and squeezes the infusion bag 1, and the positive air pressure in the infusion bag 1 passes the drug solution through the catheter one, the check valve A 11 and a conduit 3 are injected into the powder bottle 2 to mix the medicament; then the infusion bag 1 is relaxed. Since the liquid medicine is injected into the powder bottle 2, the air pressure in the powder bottle 2 is increased, and the air passes through the catheter. Return to the infusion bag 1 to the valve 2 12 and the catheter 2; repeatedly squeeze and loosen the infusion bag 1 until the powder bottle 2 is filled with the required liquid volume; then the entire infusion bag 1 and the powder bottle 2 are turned over That is, the inverted powder bottle 2 and the erect infusion bag 1 are kept, and the infusion bag needle 3 is kept in air contact with the infusion bag 1; the infusion bag 1 is alternately squeezed and relaxed again, and the air in the infusion bag 1 passes through the catheter 9 and the check valve A 11 and a conduit 3 7 enter the powder needle bottle 2, and the positive air pressure in the powder needle bottle 2 recirculates the liquid medicine through the conduit 4, the check valve 2 12 and the catheter 2 to the infusion bag 1 until the powder bottle 2 is in the internal medicine. The liquid is completely returned to the infusion bag 1.

The dispensing method of the integrated dispensing mechanism can inject the liquid medicine in the infusion bag 1 into the powder needle bottle 2 by squeezing and relaxing the infusion bag 1, and the inner circulation of the air in the dispensing mechanism, and further injecting the powder bottle 2 After the medicine is mixed, the liquid is returned to the infusion bag 1; during the whole process of dispensing, it is not necessary to pull out the infusion bag needle 3 and the powder needle 4 again, or exchange the infusion bag 1 and the powder needle. The bottle 2 station can realize the one-time connection of the infusion bag 1 and the powder needle bottle 2, and the liquid in the infusion bag 1 is smoothly injected into the powder needle bottle 2, the dispensing method is simple, the operation is convenient, the dispensing process is simplified, and the processing is greatly improved. The dispensing efficiency is also avoided, and the loss of the liquid medicine during the dispensing process is also avoided.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Scope.

Claims

The invention relates to a powder needle bottle integrated dispensing mechanism, comprising an infusion bag needle (3) and a powder needle bottle needle (4), characterized in that the infusion bag needle (3) comprises a through hole one (31) and a through hole two (32) A double-hole needle, the through hole one (31) and the through hole two (32) are respectively connected to the catheter one (9) and the second tube (10), and the powder needle needle (4) includes a through hole a three-hole needle of three (41) and a through-hole four (42), the through-hole three (41) and the through-hole four (42) are respectively connected to the conduit three (7) and the conduit four (8); 9) A check valve (11) is provided between the conduit two (7) and the conduit four (8) from the conduit three (7) to the conduit three (7). A check valve two (12) is provided for fluid flow from the conduit four (8) to the conduit two (10).
The powder dispensing bottle integrated dispensing mechanism according to claim 1, wherein the positions of the infusion bag needle (3) and the powder needle bottle needle (4) are mutually replaceable, that is, the infusion bag needle (3) The catheter three (7) is connected to the catheter four (8) while the powder needle needle (4) is connected to the catheter one (9) and the catheter two (10).
The powder dispensing bottle integrated dispensing mechanism according to claim 1, further comprising a rotating member that can rotate the entire dispensing mechanism.
A powder dispensing bottle integrated dispensing mechanism according to claim 3, wherein said rotating member comprises a support plate (6) for fixing the entire dispensing mechanism, said support plate (6) being vertically driven by a motor Rotate in a straight plane.
A powder dispensing bottle integrated dispensing mechanism according to any one of claims 1 to 4, further comprising a pressing member (5) for squeezing the infusion bag (1).
The powder dispensing bottle integrated dispensing mechanism according to claim 5, wherein the pressing member (5) comprises a hanging plate (56) for fixing, and the hanging plate (56) is connected with a rear splint (51), the hanging plate (56) is fixed with a rail (54) and a motor (55), and the motor (55) pivotally connects a screw (53) disposed in parallel with the rail (54), The front splint (52) passes through the guide rail (54) and the lead screw (53); the infusion bag (1) is disposed between the front splint (52) and the rear splint (51), and the motor (55) drives The lead screw (53) rotates, and the front splint (52) is close to or away from the rear splint (51) to squeeze or loosen the infusion bag (1).
The invention relates to a method for dispensing a powder needle bottle integrated dispensing mechanism, which comprises the powder dispensing bottle integrated dispensing mechanism according to any one of claims 1-6, wherein the dispensing method comprises the following steps:

Step 1. Prepare, insert the infusion bag needle (3) into the infusion bag (1), insert the powder needle bottle needle (4) into the powder needle bottle (2), and the infusion bag (1) keeps the bottle mouth toward In the inverted state, the powder needle bottle (2) is in an upright state with the bottle mouth facing upward, and the infusion bag needle (3) is kept in contact with the liquid medicine state in the infusion bag (1);

Step 2: injecting the liquid medicine into the powder needle bottle (2), that is, using a plurality of times of squeezing the infusion bag (1) and relaxing the infusion bag (1), the liquid medicine in the infusion bag (1) passes through the catheter one by one. (9), one-way valve one (11) and three conduits (7) flow into the powder needle bottle;

Step 3: Turn the infusion bag (1) and the powder bottle (2), that is, the infusion bag (1) is turned over to keep the bottle mouth facing upright, and the powder needle bottle (2) keeps the bottle mouth facing down. The infusion bag needle (3) is adjusted to contact the tip of the needle to contact the air condition in the infusion bag (1);

Step 4: Squeeze and loosen the infusion bag (1) several times, that is, when the infusion bag (1) is squeezed, the air in the infusion bag (1) sequentially enters the catheter one (9), the one-way valve one (11) And the catheter three (7) and into the powder needle bottle (2); each time the infusion bag (1) is relaxed, the positive pressure of the air in the powder bottle (2) will pass the liquid medicine in the powder bottle (2) through the catheter four (8), the check valve 2 (12) and the catheter 2 (10) are sequentially injected into the infusion bag (1), and the circulation action of the infusion bag (1) and the infusion bag (1) are repeated several times until the powder bottle (2) The internal drug solution is completely injected into the infusion bag (1);

Step 5: Remove the powder bottle (2) and the infusion bag (1) to complete the dispensing.
The dispensing method of the powder needle bottle integrated dispensing mechanism according to claim 7, wherein the step two is repeated a plurality of times until the inner space of the powder bottle (2) is filled with the chemical liquid.
The dispensing method of the powder needle bottle integrated dispensing mechanism according to claim 7, characterized in that the pressing time of the infusion bag (1) in each of the steps 2 or/and the step 4 is 0.5-2 s.
The dispensing method of the powder needle bottle integrated dispensing device according to claim 9, wherein each of the steps 2 and 4 is performed for each time the infusion bag (1) is squeezed and each time the infusion bag is relaxed ( 1) The duration is equal, both are 1-2s.