CN209809178U

CN209809178U - Medical infusion pipeline

Info

Publication number: CN209809178U
Application number: CN201821487908.XU
Authority: CN
Inventors: 雷波; 贺淑君
Original assignee: Haidian District Maternal And Child Health Care Hospital Of Beijing
Current assignee: Haidian District Maternal And Child Health Care Hospital Of Beijing
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2019-12-20
Anticipated expiration: 2028-09-11

Abstract

The utility model discloses a medical infusion pipeline, belonging to the field of medical supplies, which is technically characterized by comprising a delivery pipe, an input pipe with a vein needle and an infusion bag, wherein the infusion bag is communicated with the delivery pipe through a connecting pipe group, the connecting pipe group is split and comprises a liquid inlet pipe, the utility model provides a peristaltic pump that the liquid outlet pipe and can extrude deformation, the feed liquor pipe is linked together with infusion bag, the liquid outlet pipe is linked together with the conveyer pipe, the both ends of peristaltic pipe are linked together through matched with threaded connection cap and threaded connection head respectively, thereby be provided with the peristaltic pump that extrudees the control liquid medicine velocity of flow to the peristaltic pipe on the peristaltic pipe, be provided with the measurement bag that is carved with scale on the surface of being made by transparent material on the feed liquor pipe, the both ends that the measurement bag is close to infusion bag and keeps away from infusion bag are provided with the flow stopping respectively and press from both sides, be provided with the mouth of adding medicine on the measurement bag, it has the screw cap with. The utility model has the advantages of can adjust medicine infusion speed and infusion dose according to actual need.

Description

Medical infusion pipeline

Technical Field

The utility model relates to the field of medical supplies, in particular to a medical infusion pipeline.

Background

With the progress of medical technology, medical operations become more and more strict, and infusion is taken as the basis of medical procedures, and most of the medical procedures require infusion. With the development of medical technology, the requirements on the quantity of infusion and the speed of infusion are higher and higher during infusion, certain special drugs need to strictly control the flow rate during infusion, and the flow rate of liquid medicine during infusion is generally controlled by a drip controller to control the pressure of an infusion tube in the medical field, so that the infusion speed is adjusted, and the requirements of the medical treatment on the infusion speed and the infusion medicine quantity control cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical infusion pipeline, it has the advantage that can adjust medicine infusion speed and infusion dose according to actual need.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a medical infusion pipeline comprises a delivery pipe, an input pipe with a vein needle and infusion bags with liquid medicine inside, which are positioned at the two ends of the delivery pipe, wherein the infusion bags are communicated with the delivery pipe through a connecting pipe group, the connecting pipe group is split and comprises a liquid inlet pipe, a liquid outlet pipe and a peristaltic pipe which is positioned between the liquid inlet pipe and the liquid outlet pipe and can be extruded and deformed, the liquid inlet pipe is communicated with the infusion bags, the liquid outlet pipe is communicated with the delivery pipe through a matched threaded connection cap and a threaded connection head, the two ends of the peristaltic pipe are respectively communicated with the threaded connection head through a matched threaded connection cap, the peristaltic pipe is provided with a peristaltic pump which extrudes the peristaltic pipe so as to control the flow rate of the liquid medicine in the connecting pipe group, the liquid inlet pipe is provided with a metering bag which is made of transparent material and is provided with the inside of the liquid inlet pipe in a scale on the surface, the metering bag is provided with a medicine feeding port, and a rotary cap for sealing the medicine feeding port is screwed on the medicine feeding port.

By adopting the technical scheme, the infusion bag filled with the liquid medicine is communicated with the conveying pipe by adopting the connecting pipe group, and the peristaltic pipe on the connecting pipe group is extruded by the peristaltic pump, so that the flow rate of the liquid medicine in the connecting pipe group is accelerated, and the liquid medicine can be quickly injected into the conveying pipe; the liquid inlet pipe is provided with the metering bag, so that the infusion dosage is controlled.

The utility model discloses further set up to: threaded connection head and threaded connection cap are the tubular structure that the rigid plastic material was made, have seted up the external screw thread on threaded connection head's the outside wallboard, and threaded connection cap's inside is provided with the internal thread with threaded connection head external screw thread assorted.

Through adopting above-mentioned technical scheme, adopt matched with threaded connection head and threaded connection cap to can be quick with peristaltic pipe and feed liquor pipe and drain pipe switch-on mutually.

The utility model discloses further set up to: the inside of threaded connection cap is provided with the honeycomb duct that stretches into inside threaded connection head.

Through adopting above-mentioned technical scheme, make during the inflow threaded connection head that the liquid medicine can be smooth to avoid the liquid medicine to take place to leak at the junction of threaded connection head and threaded connection cap.

The utility model discloses further set up to: the delivery pipe is provided with a medicine filter.

By adopting the technical scheme, the liquid medicine is filtered, and precipitates in the liquid medicine are prevented from being injected into a human body.

The utility model discloses further set up to: the peristaltic tube is a silicone tube.

Through adopting above-mentioned technical scheme, because silicone tube has splendid resilience and the little characteristics of permanent deformation to can be quick when peristaltic pump extrudees the peristaltic tubing and reply original shape.

The utility model discloses further set up to: the peristaltic tube comprises an inner tube and an outer tube sleeved outside the inner tube, and a net-shaped polyester layer is arranged between the inner tube and the outer tube.

Through adopting above-mentioned technical scheme, strengthen the structure of peristaltic pipe through netted dacron layer to make the peristaltic pipe difficult because of the extrusion of peristaltic pump causes the damage.

The utility model discloses further set up to: the surface of the peristaltic tube is coated with a layer of organic silicon film.

Through adopting above-mentioned technical scheme, make the surface of peristaltic tubing smooth to when peristaltic pump extrudeed the peristaltic tubing, the frictional force between peristaltic tubing and the peristaltic pump is less, thereby makes the peristaltic tubing be difficult for being worn out by the peristaltic pump.

The utility model discloses further set up to: and a limiting bulge is arranged at the position, outside the peristaltic pump, of one end, close to the liquid inlet pipe, of the peristaltic pipe.

By adopting the technical scheme, when the peristaltic pump extrudes the peristaltic tube, the peristaltic tube cannot float in the peristaltic pump.

The utility model discloses further set up to: one end of the liquid inlet pipe, which is far away from the peristaltic pipe, is provided with a puncture needle for puncturing the inside of the infusion bag.

By adopting the technical scheme, the practical puncture needle is punctured into the infusion bag, so that the liquid inlet pipe is quickly communicated with the infusion bag.

To sum up, the utility model discloses following beneficial effect has:

1. the infusion bag is communicated with the conveying pipe through the connecting pipe group, and the peristaltic pipe in the connecting pipe group is extruded through the peristaltic pump, so that the speed of injecting the liquid medicine into the conveying pipe is increased;

2. the drug filter is arranged on the delivery pipe, so that the sediment in the liquid medicine can not be injected into the human body during infusion;

3. the peristaltic tube made of silica gel has good rebound resilience, so that when the peristaltic pump extrudes the peristaltic tube, the peristaltic tube can be quickly restored to the original state;

4. the surface of the peristaltic tube is coated with the organic silicon film layer, so that the smoothness of the surface of the peristaltic tube is improved, and the peristaltic tube is prevented from being damaged due to large friction when the peristaltic pump extrudes the peristaltic tube.

Drawings

FIG. 1 is a schematic structural view of a medical infusion tube;

FIG. 2 is a partial enlarged view of portion A of FIG. 1;

FIG. 3 is an exploded view of the connecting tube set;

FIG. 4 is a partial enlarged view of portion B of FIG. 3;

FIG. 5 is a schematic view of the structure of a peristaltic tube;

fig. 6 is a cross-sectional view of the threaded cap and the threaded connector.

In the figure, 1, a delivery pipe; 11. a drug filter; 2. a connecting pipe group; 21. a liquid inlet pipe; 22. a liquid outlet pipe; 23. a peristaltic tube; 231. an inner tube; 232. an outer tube; 233. a reticular polyester fiber layer; 234. an organic silicon film layer; 235. a limiting bulge; 24. puncturing needle; 3. an infusion bag; 4. an input tube; 41. a venous needle; 42. a needle shield; 5. a peristaltic pump; 6. a flow stopping clip; 7. a threaded connection cap; 71. a flow guide pipe; 72. a connecting ring; 8. a threaded connector; 9. a metering bag; 91. a medicine adding port; 92. and (5) screwing the cap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

A medical infusion tube, as shown in figure 1, comprises a delivery tube 1, an input tube 4 with a vein needle 41 and an infusion bag 3 filled with liquid medicine and communicated with the delivery tube 1 through a connecting tube group 2.

The end of the inlet tube 4 remote from the intravenous needle 41 communicates with the delivery tube 1 via a cooperating threaded cap 7 and threaded connector 8. Wherein the threaded connection cap 7 is fixed on the delivery pipe 1 and communicated with the interior of the delivery pipe 1, and the threaded connection head 8 is fixed on the input pipe 4 and communicated with the input pipe 4. A detachable needle shield 42 that covers the intravenous needle 41 is inserted into the intravenous needle 41 of the inlet tube 4.

The drug filter 11 with a filter screen is fixedly arranged on the conveying pipe 1. The interior of the drug filter 11 communicates with the interior of the delivery tube 1. The liquid medicine flowing through the delivery pipe 1 is filtered by the medicine filter 11, so that the sediment in the liquid medicine is filtered, and the sediment is prevented from being sent into the input pipe 4.

Infusion bag 3 is linked together through connecting nest of tubes 2 and conveyer pipe 1, and wherein connecting nest of tubes 2 is linked together with infusion bag 3 with 1 one end of conveyer pipe, and the other end is linked together through threaded connection cap 7 and the threaded connection head 8 of mutually supporting. Wherein the threaded connection cap 7 is fixed on the connecting pipe group 2 and communicated with the inside of the connecting pipe group 2, and the threaded connection head 8 is fixed on the conveying pipe 1 and communicated with the conveying pipe 1. The connection tube set 2 is provided with a peristaltic pump 5 for compressing the connection tube set 2 to force the connection tube set 2 to peristaltically move so as to control the flow rate of the liquid medicine flowing through the connection tube set 2.

As shown in fig. 3, the connection pipe assembly 2 is split and includes a liquid inlet pipe 21, a liquid outlet pipe 22 and a peristaltic pipe 23 located between the liquid inlet pipe 21 and the liquid outlet pipe 22, wherein one end of the peristaltic pipe 23 is connected to the liquid inlet pipe 21 through a screw connection cap 7 and a screw connection head 8 which are matched with each other, the screw connection cap 7 is fixedly connected to the liquid inlet pipe 21, and the screw connection head 8 is fixedly connected to the peristaltic pipe 23. The other end of the peristaltic tube 23 is also communicated with the liquid outlet tube 22 through a threaded connection cap 7 and a threaded connector 8 which are matched with each other, wherein the threaded connection cap 7 is fixed on the peristaltic tube 23, and the threaded connector 8 is fixed on the liquid outlet tube 22.

Referring to fig. 1, a puncture needle 24 is fixed to an end of the liquid inlet tube 21 away from the peristaltic tube 23, and the liquid inlet tube 21 is communicated with the infusion bag 3 by penetrating the puncture needle 24 into the infusion bag 3.

As shown in fig. 1 and 3, a metering bag 9 made of transparent material and having a scale marked on the surface is disposed at a position of the liquid inlet tube 21 close to the puncture needle 24, the metering bag 9 is fixedly connected with the liquid inlet tube 21, and the inside of the metering bag 9 is communicated with the inside of the liquid inlet tube 21. When the puncture needle 24 of the liquid inlet tube 21 is pierced into the infusion bag 3, the medical fluid in the infusion bag 3 first flows into the measurement bag 9, the amount of the medical fluid flowing into the measurement bag 9 is checked by the scale on the surface of the measurement bag 9, and then the medical fluid flows into the peristaltic tube 23 through the liquid inlet tube 21.

The two ends of the metering bag 9 close to the infusion bag 3 and the two ends of the metering bag far away from the infusion bag 3 are respectively provided with a flow stopping clip 6. When the amount of the liquid medicine flowing into the measuring bag 9 reaches the required amount, the flow stopping clip 6 stops the liquid medicine in the infusion bag 3 from continuously flowing into the measuring bag 9. A medicine adding opening 91 for injecting medicine into the metering bag 9 is arranged at one end of the metering bag 9 close to the infusion bag 3, a screw cap 92 for sealing the medicine adding opening 91 is screwed on the medicine adding opening 91, and the screw cap 92 is in threaded connection with the medicine adding opening 91.

When the infusion is performed, the flow stop clip 6 on the side of the metering bag 9 away from the infusion bag 3 is clamped, and the flow stop clip 6 on the side of the metering bag 9 close to the infusion bag 3 is opened. The screw cap on the medicine adding port 91 is taken off, so that the medicine liquid in the infusion bag 3 flows into the metering bag, when the quantity of the medicine liquid flowing into the metering bag 9 reaches the required requirement, the flow stopping clamp 6 on the side, close to the infusion bag 3, of the metering bag 9 is clamped tightly, and the liquid supply to the metering bag 9 is stopped. The stop clamp on the side of the infusion bag 3 remote from the metering bag 9 is released to start the supply of liquid to the patient.

A threaded connection cap 7 matched with the threaded connector 8 on the delivery pipe 1 is fixed at one end of the liquid outlet pipe 22 far away from the peristaltic pipe 23. The outlet pipe 22 is connected to the delivery pipe 1 by screwing the screw cap 7 on the screw joint 8.

As shown in fig. 5, peristaltic tube 23 includes an inner tube 231 and an outer tube 232 sleeved outside inner tube 231, a mesh polyester layer 233 is disposed between inner tube 231 and outer tube 232, and the structural strength of peristaltic tube 23 is enhanced by mesh polyester layer 233, so that peristaltic tube 23 has strong pressure resistance, and peristaltic tube 23 is not easily damaged when peristaltic pump 5 extrudes peristaltic tube 23. The outer surface of the outer tube 232 is coated with a layer of organic silicon film 234, so that the smoothness of the surface of the peristaltic tube 23 is improved through the organic silicon film 234, the friction force between the peristaltic pump 5 and the peristaltic tube 23 when the peristaltic tube 23 is extruded by the peristaltic pump 5 is reduced, and the peristaltic tube 23 is prevented from being damaged due to large friction force.

As shown in figures 1 and 2, when the medical infusion tube is used, a peristaltic tube 23 in a connection tube set 2 is clamped into a pump head of a peristaltic pump 5, wherein the peristaltic tube 23 is close to one end of a liquid inlet tube 21, a limiting protrusion 235 is arranged at a position where the pump head of the peristaltic pump 5 is exposed, and the limiting protrusion 235 is integrally formed with the peristaltic tube 23. By the limiting protrusion 235, when the peristaltic pump 5 is started and the peristaltic tube 23 is pressed by the peristaltic pump 5, the peristaltic tube 23 cannot move in the pump head of the peristaltic pump.

As shown in fig. 3 and 4, the threaded connector 8 and the threaded cap 7 are both tubular structures made of hard plastic material. One end of the threaded connector 8 is communicated with the inner hole of the peristaltic tube 23 or the inner hole of the liquid outlet tube 22, and the other end is a free end. An external thread is provided on the outer wall of the free end of the threaded connection 8. One end of the threaded connection cap 7 is communicated with an inner hole of the peristaltic pipe 23 or the liquid inlet pipe 21, the other end of the threaded connection cap is a free end of the threaded connection cap, and an inner thread matched with an outer thread of the free end of the threaded connection head 8 is formed in an inner hole wall plate of the free end of the threaded connection cap 7. The screw joint 8 is communicated with the screw joint cap 7 by screwing the screw joint cap 7 to the screw joint 8.

As shown in fig. 6, a flow guide pipe 71 which can extend into the inner hole of the threaded connector 8 is arranged inside the threaded connection cap 7, and the flow guide pipe 71 is communicated with the inner hole of the peristaltic pipe 23 or the liquid inlet pipe 21. The axis of the delivery tube 71 is the same as the axis of the screw cap 7. The end of the draft tube 71 at one end of the threaded connection cap 7 connected with the peristaltic tube 23 or the liquid inlet tube 21 is connected with the inner wall plate of the threaded connection cap 7 through a connection ring 72, wherein the threaded connection cap 7, the draft tube 71 and the connection ring 72 are integrally formed by injection molding.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a medical infusion pipeline, includes conveyer pipe (1), is located input tube (4) and inside infusion bag (3) that are equipped with the liquid medicine that have vein needle (41) at conveyer pipe (1) both ends, infusion bag (3) are linked together its characterized in that through connecting nest of tubes (2) and conveyer pipe (1): the utility model discloses a peristaltic pump, it is split type to connect nest of tubes (2), including feed liquor pipe (21), drain pipe (22) and be located the peristaltic pipe (23) that can extrude the pressure deformation between feed liquor pipe (21) and drain pipe (22), feed liquor pipe (21) are linked together with infusion bag (3), drain pipe (22) are linked together through matched with threaded connection cap (7) and threaded connection head (8) with conveyer pipe (1), the both ends of peristaltic pipe (23) are linked together through matched with threaded connection cap (7) and threaded connection head (8) respectively, be provided with on peristaltic pipe (23) and extrude peristaltic pipe (23) to peristaltic pump (5) of the liquid medicine velocity of flow in control connection nest of tubes (2), be provided with on feed liquor pipe (21) and be carved with the measurement bag (9) that scale and feed liquor pipe (21) inside are linked together by transparent material's surface scale, the measuring bag (9) is close to infusion bag (3) and keeps away from the both ends of infusion bag (3) and is provided with flow stopping clamp (6) respectively, be provided with on measuring bag (9) with medicine mouth (91), add medicine mouth (91) and go up to revolve and have and revolve cap (92) with adding medicine mouth (91) confined.

2. The medical infusion fluid line of claim 1, wherein: threaded connection head (8) and threaded connection cap (7) are the tubular structure that the rigid plastic material was made, the external screw thread has been seted up on the outside wallboard of threaded connection head (8), the inside of threaded connection cap (7) is provided with the internal thread with threaded connection head (8) external screw thread assorted.

3. The medical infusion fluid line of claim 2, wherein: and a guide pipe (71) extending into the threaded connector (8) is arranged in the threaded connection cap (7).

4. The medical infusion fluid line of claim 1, wherein: the delivery pipe (1) is provided with a drug filter (11).

5. The medical infusion fluid line of claim 1, wherein: the creeping pipe (23) is a silicone tube.

6. The medical infusion fluid line of claim 5, wherein: the peristaltic tube (23) comprises an inner tube (231) and an outer tube (232) sleeved outside the inner tube (231), and a reticular polyester layer (233) is arranged between the inner tube (231) and the outer tube (232).

7. The medical infusion fluid line of claim 6, wherein: the surface of the creeping tube (23) is coated with a layer of organic silicon film layer (234).

8. The medical infusion fluid line of claim 1, wherein: and a limiting bulge (235) is arranged at the position, outside the peristaltic pump (5), of one end, close to the liquid inlet pipe (21), of the peristaltic pipe (23).

9. The medical infusion fluid line of claim 1, wherein: one end of the liquid inlet pipe (21) far away from the peristaltic pipe (23) is provided with a puncture needle (24) used for puncturing the inside of the infusion bag (3).