TWI805351B - Simple infusion tube structure - Google Patents

Abstract

A simple transfusion tube structure, comprising a transfusion tube, a control tube, a barrel, a channel control unit, a check valve, the control tube includes a first tube body, a second tube body, the channel control unit The second tube body is movably sleeved on the control tube. The surface of the channel control unit has a groove, and has a plurality of exhaust channels and a dosing channel. By moving the position of the channel control unit, the groove The groove, the exhaust passages, and the dosing passage are moved, the check valve is communicated with the dosing passage, and has a dosing valve. When performing a large amount of drip exhaust and a small amount of drug dosing, the channel control unit can be moved to perform drip exhaust and a small amount of drug dosing using the dosing valve. During the drip and small amount of drug dosing process, it is necessary to keep in mind the air guide holes and operation sequence, as well as the occurrence of confusion and mistakes, so as to reduce the chance of unsmooth pipeline, blood return and unplanned intravenous injection removal and reset, so as to achieve The purpose of ensuring the continuity of patient drug treatment and improving the quality of medical care.

Description

Simple infusion tube structure

The invention relates to an infusion tube, in particular to a simple infusion tube structure which is convenient for dripping exhaust and drug dosing.

Before the use of the intravenous infusion cannula, the cannula is filled with air, so the nurse needs to flow the infusion from the upper end of the infusion cannula to the lower end to fill the cannula with the infusion fluid and remove the air. This is called "exhaust". The infusion solution will be connected to the patient's side only after complete. If the exhaust is not complete, the gas entering the patient's body will cause gas embolism and endanger the patient's life.

Intravenous infusion supply is an important clinical medical treatment. However, before the precision infusion cannula used in clinical practice is connected to a large amount of injection, the infusion cannula must be vented first. The steps are complicated and confusing.

At present, the exhaust process of precision infusion cannula includes:

1. Open the upper air guide hole, 2. Open the tube clamp, 3. Open the piston valve at the bottom of the precision metering cylinder (IV Bag), 4. Add the required infusion volume into the precision measuring cylinder, 5. Close the upper guide of the precision measuring cylinder Stomach cover, 6. Squeeze the solution in the dropping chamber to 1/2~3/2 full, 7. Open the flow rate control clamp to exhaust, after confirming complete exhaust, 8. Close the flow rate control clamp.

And when the patient's disease condition needs to be additionally provided with special drug treatment, when a small amount or precise control of the drug dose is required, a precision infusion sleeve must be used to provide the patient with infusion therapy.

At present, the steps required for small amount of drug dosing are:

1. Put the required amount of infusion into the precision metering cylinder according to the doctor's order, 2. Close the tube clamp, 3. Open the air guide hole on the precision metering cylinder, 4. Add the medicine prescribed by the doctor into the precision metering cylinder through the dosing hole, 5. Adjust the flow rate control clip to maintain the correct flow rate, and start the infusion.

However, for new nurses or interns, the cumbersome and complicated operation often leads to incomplete and correct opening of the pipeline, which can easily lead to problems such as infusion blockage, blood return, etc., resulting in unplanned reset of peripheral intravenous indwelling needles, which increases the workload of nurses burden, resulting in additional medical costs.

In addition, according to the "Biomedical Waste Reference and Judgment Manual (104th Edition)" published by the Environmental Protection Agency, it is pointed out that hazardous industrial wastes, biomedical infectious wastes, and sharp medical equipment damage include various drip injection hoses, such as IV SET in the removal For the sharp upper part, safer measures should be taken to handle and dispose of sharp medical instruments to avoid being cut by sharp objects during handling and causing injury.

In order to solve the above problems, developing a simple infusion tube structure that is convenient for drip exhaust and drug dosing, and safer, is actually a major issue in the nursing field and personnel.

Yes, based on the concept of continuous product research and innovation, the inventors have been engaged in product design and development for many years, as well as actively concentrating on research and development thinking, through countless actual tests and experiments, resulting in the generation of the present invention.

The purpose of the present invention is to provide a simple infusion tube structure that is convenient for drip exhaust and drug dosing.

To achieve the above-mentioned purpose, the present invention includes a transfusion tube, a control tube, a barrel, a channel control unit, and a check valve, wherein the transfusion tube is used to transport medicinal liquid; the control tube includes a first tube body 1. A second tube body, the first tube body and the second tube body form a cross shape, the upper end of the first tube body communicates with the infusion tube; the upper end of the cylinder body communicates with the lower end of the first tube body for containing medicine Liquid; the channel control unit is movably sleeved on the second tube body of the control tube, the surface of the channel control unit has a groove, and has a plurality of exhaust channels and a dosing channel, by moving the channel control unit position, to move the groove, the exhaust passages, and the dosing passage, and then control whether the infusion tube and the cylinder are connected, or control whether the exhaust passages and the cylinder are connected to the The external air of the channel control unit, or control whether the dosing channel and the cylinder are connected; the check valve is connected to the dosing channel, and the check valve has a dosing valve, and is used to control The medicine added by the valve is only input into the medicine adding channel in one direction.

When performing a large amount of drip exhaust and a small amount of drug dosing, the channel control unit can be moved to perform drip exhaust and a small amount of drug dosing using the dosing valve. In the process of dosing and small amount of drugs, it is necessary to keep in mind the air guide holes and operation sequence, as well as the occurrence of confusion and mistakes, so as to reduce the chance of unsmooth pipeline, blood return and unplanned intravenous injection removal and reset, so as to ensure Continuity of patient medication and the purpose of improving the quality of medical care.

The following are only detailed descriptions based on specific embodiments and drawings.

Please refer to FIG. 1 to FIG. 3 , the present invention includes an infusion tube 10 , a control tube 20 , a barrel 30 , a channel control unit 40 , and a check valve 50 . It will be explained in detail below:

The infusion tube 10 is used to transport medical fluid.

The control tube 20 includes a first tube body 21 and a second tube body 22 , the first tube body 21 and the second tube body 22 form a cross shape, and the upper end of the first tube body 21 communicates with the infusion tube 10 .

The upper end of the barrel body 30 communicates with the lower end of the first tube body 21 for accommodating the liquid medicine.

The channel control unit 40 is movably sleeved on the second tube body 22 of the control tube. The channel control unit 40 has a groove 41 on the surface, and has a plurality of exhaust channels and a drug feeding channel 42. By moving the channel The position of the control unit 40 is to move in conjunction with the groove 41, the exhaust passages, and the dosing passage 42, and then control whether the infusion tube 10 and the cylinder 30 are connected, or control the exhaust passages, Whether the cylinder body 30 is connected to the external air of the channel control unit 40, or whether the medicine feeding channel 42 and the cylinder body 30 are connected.

The check valve 50 communicates with the medicine adding channel 42 , the check valve 50 has a medicine adding valve 51 , and is used to control the medicine added by the medicine adding valve 51 into the medicine adding channel 42 only in one direction.

In one embodiment, one end of the infusion tube 10 is provided with a connecting portion 11, and the connecting portion 11 and the upper end of the first tube body 21 are assembled with each other through a screw connection structure, so as to facilitate unscrewing assembly or screwing assembly catch.

In one embodiment, please refer to FIG. 3, when the channel control unit 40 is moved to the first position, the groove 41 is located at the intersection of the first tube body 21 and the second tube body 22, and forms drips liquid channel, so that the infusion tube 10 and the cylinder body 30 are connected to form a valve opening; when the channel control unit 40 is moved to the second position (see Figure 6), the groove 41 moves out of the The intersection of a pipe body 21 and the second pipe body 22 enters into the second pipe body 22, and at the same time, the channel control unit 40 is in close contact with the inner wall of the intersection of the first pipe body 21 and the second pipe body 22, The valve is blocked and closed.

In one embodiment, these exhaust channels include a first exhaust channel 43 and a second exhaust channel 44, each of the first exhaust channel 43 and the second exhaust channel 44 has two The channel outlet on the surface of the channel control unit 40, when the channel control unit 40 is moved to the first position (see Fig. 4), the first exhaust channel 43, the cylindrical body 30 and the channel control unit 40 The external air communicates with each other, and the second exhaust passage 44 and the cylindrical body 30 are not communicated with the external air of the passage control unit 40; when the passage control unit 40 is moved to the second position (see Fig. shown), the second exhaust passage 44, the cylinder 30 and the outside air of the passage control unit 40 communicate with each other, the first exhaust passage 43, the cylinder 30 are not connected to the outside air of the passage control unit 40 interconnected.

In one embodiment, one end of the passage control unit 40 has a movable cover 47, which is used to close or open the passage outlets of the first exhaust passage 43 and the second exhaust passage 44, so as to control the first exhaust passage. Whether the air passage 43, the second exhaust passage 44 and the external air communicate with each other.

In one embodiment, the drug-adding channel 42 has a channel outlet through the surface of the channel control unit 40. When the channel control unit 40 is moved to the first position (see Fig. The passage 42 is not connected with the cylinder body 30; when the passage control unit 40 is moved to the second position (see FIG. 6), the medicine feeding passage 42 is connected with the cylinder body 30.

In one embodiment, the outer surface of the channel control unit 40 on one side of the groove 41 has a positioning flange 45 for moving the channel control unit 40 from the first position to the second position. The flange 45 stops against the inner wall of the second tube body 22 to control the movement distance and position of the channel control unit 40 to avoid excessive movement.

In one embodiment, the outer surface of the channel control unit 40 has several sealing rings 46 for sealing and leak-proofing the channel control unit 40 and the second tube body 22 of the control tube.

In one embodiment, one end of the dosing valve 51 has a through hole 52 through which the dosing channel 42 is communicated, and one end of the dosing valve 51 is further sleeved with an elastic sleeve 53 to cover the through hole 52 , the principle of the anti-reverse structure of the elastic sleeve 53 is matched with the valve, the elastic sleeve 53 is elastically deformable by using elastic material such as silicon rubber material, when the medicine added by the dosing valve 51 flows to the through hole 52 (please refer to Chapter 7 As shown in the figure), the pressure of the drug forces the elastic sleeve 53 to be pushed away and deformed to open the through hole 52. When there is no pressure from the drug, the elastic sleeve 53 automatically returns to the state of blocking the through hole 52, so that the drug can only be released in one direction. Enter the dosing channel 42 .

The above is the introduction of each component of the present invention and its composition mode, and then the application examples, characteristics and benefits of the present invention are introduced as follows:

Examples of the use of a large number of drip exhaust:

Please refer to FIG. 4, the channel control unit 40 can be positioned at the first position, the groove 41 is located at the intersection of the first tube body 21 and the second tube body 22, and forms a drip channel, so that the The infusion tube 10 and the cylinder body 30 are connected to form a valve open state, and the infusion fluid can be dripped into the cylinder body 30 from the infusion tube 10 and the second tube body 22 .

In addition, the cover 47 can be opened to open the channel outlet of the first exhaust channel 43, so that the first exhaust channel 43, the cylinder body 30 and the external air of the channel control unit 40 can communicate with each other to form internal and external convection. , thereby improving the exhaust effect of dripping and dripping liquid can be smoothly dripped into the barrel 30 .

Please refer to Fig. 5, when the drip is finished, the cover 47 can be closed to close the channel outlet of the first exhaust channel 43 .

Example of the use of the dosing process:

Please refer to Fig. 6, the channel control unit 40 can be moved to the left to be in the second position, the groove 41 moves out of the intersection of the first tube body 21 and the second tube body 22 and enters the second tube body In the body 22, at the same time, the channel control unit 40 closely contacts the inner wall of the intersection of the first pipe body 21 and the second pipe body 22, forming a valve blocked and closed state.

Please refer to Fig. 7, the drug feeding channel 42 is in communication with the cylinder body 30, the drug can be added through the drug feeding valve 51, and when the added drug flows to the through hole 52, the elastic sleeve 53 is forced by the pressure of the drug. Pushing away the deformation opens the through hole 52 , so that the medicine can only be input into the medicine feeding channel 42 in one direction, and then flow into the barrel 30 .

In addition, the cover 47 can be opened to open the channel outlet of the second exhaust channel 44, the second exhaust channel 44, the cylinder body 30 and the external air of the channel control unit 40 communicate with each other to form internal and external convection, Furthermore, the exhaust effect is improved and the added medicine can flow into the barrel 30 smoothly.

Example of use when dosing is complete:

Please refer to shown in Fig. 8, when dosing finishes, can close cover body 47 to close the passage outlet of this second exhaust passage 44.

Please refer to FIG. 9, the channel control unit 40 can be moved to the right to return to the original first position.

Based on the above, when performing a large amount of drip exhaust and a small amount of drug dosing, the channel control unit 40 can be moved to perform drip exhaust and a small amount of drug dosing using the dosing valve 51. The operation is simple, not easy to confuse, and can be effective Reduce the need for nurses to keep in mind each air hole and operation sequence, as well as confusion and mistakes during the process of adding a large amount of drips and small amounts of medicines, thereby reducing unsmooth pipelines, blood return, and unplanned intravenous injections. Reset the probability to achieve the purpose of ensuring the continuity of the patient's drug treatment and improving the quality of medical care.

Please refer to Fig. 1 and Fig. 10, when the present invention is not used after drip injection, the connecting part 11 can be unscrewed, so that the infusion tube 10 and the first tube body 21 can be separated quickly, and then can be used without any The sharp insertion part 12 above the infusion tube 10 can be safely discarded under the tool, so as to avoid being cut by sharp objects during the processing and causing injury.

The above is the embodiment of this case, which is only for the convenience of explanation, and should not limit the meaning of this case, that is, all kinds of transformation designs made according to the scope of the listed patent application should be included in the scope of the patent of this case.

10: Infusion tube

11: Connecting part

12: Tip insertion

20: Control tube

21: The first tube body

22: Second pipe body

30: barrel

40: Channel control unit

41: Groove

42: Dosing channel

43: The first exhaust channel

44:Second exhaust channel

45: positioning flange

46: sealing ring

47: cover body

50: check valve

51: Dosing valve

52: Through hole

53: Elastic sleeve

Fig. 1 is a perspective view of the present invention. Fig. 2 is a three-dimensional exploded view of the present invention. Fig. 3 is a sectional view of the present invention. Fig. 4 and Fig. 5 are diagrams of examples of the use of a large amount of drip exhaust in the present invention. Fig. 6 and Fig. 7 are diagrams of the usage examples of the dosing process of the present invention. Fig. 8 and Fig. 9 are the use embodiment diagrams when the dosing of the present invention is completed. Fig. 10 is a usage example diagram in which the infusion tube and the first tube body of the present invention can be separated safely and quickly.

10: Infusion tube

11: Connecting part

12: Tip insertion

21: The first tube body

22: Second pipe body

30: barrel

40: Channel control unit

46: sealing ring

47: cover body

50: check valve

51: Dosing valve

Claims (9)

A simple infusion tube structure, including: an infusion tube for transporting medicinal liquid; a control tube, including a first tube body and a second tube body, the first tube body and the second tube body form a cross shape, the upper end of the first tube body communicates with the infusion tube; a cylinder body, the upper end communicates with the lower end of the first tube body, to accommodate the liquid medicine; a channel control unit, which is movably sleeved on the second tube of the control tube The pipe body has a groove on the surface of the channel control unit, and has a plurality of exhaust channels and a drug feeding channel. By moving the position of the channel control unit, the groove, the exhaust channels, and the drug feeding channel are linked. channel to move, and then control whether the infusion tube and the cylinder are connected, or control whether the exhaust channels and the cylinder are connected to the external air of the channel control unit, or control whether the dosing channel and the cylinder are and a non-return valve, connected to the drug-adding channel, the non-return valve has a drug-adding valve, and is used to control the drug added by the drug-adding valve to only enter the drug-adding channel in one direction. The simple infusion tube structure according to claim 1, wherein one end of the infusion tube is provided with a connecting portion, and the connecting portion and the upper end of the first tube body are assembled with each other through a screw connection structure. The simple infusion tube structure according to claim 1, wherein, when the channel control unit is moved to the first position, the groove is located at the intersection of the first tube body and the second tube body, and forms a drip channel , so that the infusion tube and the cylinder are connected to form a valve opening; when the channel control unit is moved to the second position, the groove moves out of the intersection of the first tube and the second tube and enters the second tube. In the two pipe bodies, at the same time, the outer surface of the channel control unit is in close contact with the inner wall of the intersection of the first pipe body and the second pipe body, forming a blocked and closed valve shape. The simple infusion tube structure as described in Claim 1, wherein the exhaust channels include a first exhaust channel and a second exhaust channel, and each of the first exhaust channel and the second exhaust channel has Two channel outlets penetrate the surface of the channel control unit. When the channel control unit is moved to the first position, the first exhaust channel, the cylinder and the external air of the channel control unit communicate with each other, and the second The exhaust channel and the cylinder body are not connected with the external air of the channel control unit; when the channel control unit is moved to the second position, the second exhaust channel, the cylinder body and the external air of the channel control unit communicate with each other, the first exhaust channel and the barrel are not communicated with the outside air of the channel control unit. The simple infusion tube structure as described in Claim 4, wherein one end of the channel control unit has a movable cover for closing or opening the channel outlets of the first exhaust channel and the second exhaust channel, To control whether the first exhaust passage, the second exhaust passage and the external air communicate with each other. The simple infusion tube structure according to claim 1, wherein the drug-adding channel has a channel outlet that penetrates the surface of the channel control unit, and when the channel control unit is moved to the first position, the drug-adding channel is not closed. It communicates with the barrel; when the channel control unit is moved to the second position, the medicine adding channel communicates with the barrel. The simple infusion tube structure according to claim 1, wherein the outer surface of the channel control unit on one side of the groove has a positioning flange for moving the channel control unit from the first position to the second position When the positioning lug stops against the inner wall of the second pipe body, the movement distance and positioning of the channel control unit are controlled. The simple infusion tube structure as described in Claim 1, wherein the outer surface of the channel control unit has several sealing rings, which are used for sealing and leak-proofing the channel control unit and the second tube body of the control tube. The simple infusion tube structure as described in Claim 1, wherein one end of the dosing valve has a through hole through which the dosing channel is communicated, and one end of the dosing valve is further sleeved with an elastic sleeve and To block the through hole, the elastic sleeve is made of elastic material and can be elastically deformed. When the medicine added by the dosing valve flows to the through hole, the elastic sleeve is pushed away and deformed by the pressure of the medicine to open the through hole. When the drug is pressed, the elastic sleeve automatically returns to the state of blocking the through hole.

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