CN111298236A - A medicinal liquid automatic control additional device for infusion pump - Google Patents

Abstract

The invention discloses a liquid medicine self-control additional device for an infusion pump, which comprises a bottom cover, a liquid storage bag arranged in the bottom cover, a first liquid inlet pipe communicated with the liquid storage bag, a liquid outlet pipe communicated with the liquid storage bag through the first end of a three-way joint, a flow limiting pipe communicated between the first liquid inlet pipe and the liquid storage bag, a hose penetrating through the three-way joint and used for plugging the first end, a top cover arranged on the bottom cover, and an elastic key which can elastically stretch and is arranged in the top cover and used for pressing the liquid storage bag; concave-convex lines are arranged on the inner surface of the liquid storage bag; the second end and the third end of the three-way joint are respectively communicated with the infusion pump and the infusion tube; the hose is used for communicating the second end with the third end and deforming when being pressed to enable the first end to be communicated with the third end; the device further comprises a control mechanism for switching the resilient keys between the sprung and depressed positions. The invention relates to a liquid medicine self-control adding device for an infusion pump, which can automatically add the injection of analgesic liquid medicine when a patient feels pain, and is rapid and safe.

Description

A medicinal liquid automatic control additional device for infusion pump

technical field

The present invention relates to a medicinal liquid self-control additional device for an infusion pump.

Background technique

Patients undergoing surgery are generally injected with analgesic liquid through an infusion pump to relieve the pain caused by the surgery. For the safety of the patient, the flow of the analgesic liquid is limited within a certain range. When the patient feels great pain, a certain amount of the analgesic liquid needs to be injected into the patient in a short time. By adjusting the flow, not only the adjustment time is long, but also the quantitative analgesic liquid cannot be injected into the patient in a short time after the adjustment is completed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a self-controlled addition device for medicinal liquid used in an infusion pump, so that patients can additionally inject analgesic medicinal liquid when they are in pain, which is fast and safe.

To achieve the above object, the technical scheme adopted in the present invention is:

A medicinal liquid self-control additional device for an infusion pump, comprising a bottom cover, a liquid storage bag arranged in the bottom cover, a first liquid inlet pipe communicated with the liquid storage bag, and a first liquid inlet pipe through a tee joint. One end of the liquid outlet pipe is communicated with the liquid storage bag; the second end and the third end of the three-way joint are respectively connected with the infusion pump and the infusion pipe; the inner surface of the liquid storage bag is provided with concave and convex lines;

The device further comprises a restrictor pipe communicated between the first liquid inlet pipe and the liquid storage bag, and a hose which is passed through the three-way joint and used to block the first end , the hose is used to communicate the second end and the third end; the hose is used to deform when under pressure, so that the first end is communicated with the third end;

The device further includes a top cover covered on the bottom cover, an elastic key provided in the top cover and used for pressing the liquid storage bag, and the elastic key has a pop-up position. and a depressed position, the device further includes a control mechanism for switching the elastic key between the raised position and the depressed position.

Preferably, the outer surface of the top cover is provided with a first annular protrusion, the elastic button includes an upper end of the button located in the first annular protrusion, and the first annular protrusion is provided with a slot, so The control mechanism includes a blade inserted into the slot, and the blade is used to press against the elastic key in the depressed position after being inserted.

More preferably, the insertion direction of the insert sheet is perpendicular to the elastic expansion and contraction direction of the elastic key.

Preferably, the first liquid inlet pipe communicates with the infusion pump through a Y-shaped tee, and the Y-shaped tee communicates with the second end through a second liquid inlet pipe.

More preferably, the first liquid inlet pipe, the restrictor pipe, the second liquid inlet pipe, and the Y-shaped tee are located in the bottom cover.

Preferably, the tee joint is a T-shaped tee, and the hose is communicated in a transverse direction of the T-shaped tee.

More preferably, the liquid outlet pipe and the T-shaped tee are located in the bottom cover.

Preferably, the inner surface of the bottom cover is provided with a second annular protrusion, the liquid storage bag is located in the second annular protrusion, and the second annular protrusion is provided with a second annular protrusion for the first inlet The liquid tube and the liquid outlet tube give way to the first notch.

More preferably, the elastic button includes a lower end of the button for pressing into the second annular protrusion, and the lower end of the button is provided with a button for making way for the first liquid inlet pipe and the liquid outlet pipe. Second gap.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: the present invention is a self-controlling additional device for medicinal liquid used in an infusion pump, which can store a quantitative amount of analgesic medicinal liquid through a liquid storage bag. When you feel great pain, you only need to press the liquid storage bag through the elastic button, and the quantitative analgesic liquid in the liquid storage bag can be instantly injected into the patient's body, so as to quickly and safely relieve the patient's pain.

Description of drawings

Accompanying drawing 1 is the structural schematic diagram of the bottom cover of the device of the present invention;

Accompanying drawing 2 is the top view of the top cover of the device of the present invention;

Accompanying drawing 3 is the bottom view of the top cover of the device of the present invention;

Figure 4 is a schematic diagram of the connection between the device of the present invention and the infusion pump.

Among them: 1. Bottom cover; 2. Liquid storage bag; 21. Concave-convex pattern; 3. First liquid inlet pipe; 4. Tee joint; 41. First end; 42. Second end; 5. Infusion pump; 6. Infusion tube; 7. Restrictor tube; 8. Hose; 9. Top cover; 10. Elastic button; 101. Lower end of button; 11. First annular protrusion; 12. Insert; 13. Y-type tee; 14. Second liquid inlet pipe; 15. Second annular protrusion; 16. First gap; 17. Second gap; 18. Filter.

Detailed ways

The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings.

Referring to FIG. 4 , the above-mentioned self-controlling additional device for medicinal liquid for an infusion pump is respectively connected with the infusion tube 6 and the filter 18 , and the filter 18 is connected with the infusion pump 5 . The analgesic liquid is fed into the infusion tube 6 through the infusion pump 5 .

Referring to FIGS. 1-3 , the above-mentioned self-controlling additional device for medicinal liquid for an infusion pump includes a bottom cover 1 , a liquid storage bag 2 arranged in the bottom cover 1 , and a first liquid inlet communicated with the liquid storage bag 2 . The pipe 3 is a liquid outlet pipe that communicates with the liquid storage bag 2 through the first end 41 of the tee joint 4; The first end 41 , the second end 42 and the third end 43 are all end pipes.

The above-mentioned self-controlling additional device for medicinal liquid for an infusion pump also includes a restrictor pipe 7 connected between the first liquid inlet pipe 3 and the liquid storage bag 2, a flow restrictor pipe 7 which is penetrated in the tee joint 4 and is used for sealing. Plug the hose 8 at the first end 41 , the hose 8 is used to communicate the second end 42 and the third end 43 . The hose 8 is adapted to deform when under pressure, bringing the first end 41 into communication with the third end 43 .

In this embodiment, by setting the restrictor tube 7, the analgesic liquid is filled with the liquid storage bag 2 in about 15 minutes. By setting the restrictor tube 7, when the liquid storage bag 2 is pressed, the analgesic liquid cannot flow out from the restrictor tube 7 in the reverse direction, but can only enter the liquid outlet tube.

In this embodiment, the tee joint 4 is a T-shaped tee, the hose 8 is connected to the top horizontal pipe of the T-shaped tee, the vertical pipe of the T-shaped tee is the first end 41, and the top horizontal pipe includes The second end 42 and the third end 43 . Both the liquid outlet pipe and the T-shaped tee are located in the bottom cover 1. During normal operation, the analgesic liquid output by the infusion pump 5 enters the liquid outlet pipe after passing through the hose 8 , the hose 8 blocks the first end 41 , and the analgesic liquid in the liquid storage bag 2 is not stored. When the liquid storage bag 2 is pressed, the analgesic liquid enters the liquid outlet pipe, and squeezes the hose 8 to deform it. The pain medicine liquid directly enters the infusion tube 6 .

In this embodiment, the first liquid inlet pipe 3 is communicated with the infusion pump 5 through the Y-shaped tee 13 , and the Y-shaped tee 13 and the second end 42 are communicated through the second liquid inlet pipe 14 . Specifically, the three ends of the Y-type tee 13 are respectively connected with the first liquid inlet pipe 3, the second end 42 of the T-type tee, and the infusion pump 5, and the analgesic liquid in the infusion pump 5 passes through the Y-type three-way. The passage 13 enters the first liquid inlet pipe 3 and the second end 42 of the T-shaped tee respectively. The first liquid inlet pipe 3 , the restrictor pipe 7 , the second liquid inlet pipe 14 , and the Y-shaped tee 13 are all located in the bottom cover 1 .

In this embodiment, the inner surface of the liquid storage bag 2 is provided with a concave-convex pattern 21 . Since the smooth inner surface is easy to adhere to air, this arrangement can reduce the adhesion of gas; at the same time, since the liquid storage bladder 2 is in a squeezed state (so as to expel the gas therein), the concave and convex lines 21 provide space for liquid storage.

The above-mentioned self-controlling additional device for medicinal liquid for an infusion pump also includes a top cover 9 covered on the bottom cover 1 , and an elastic button provided in the top cover 9 and used for pressing the liquid storage bag 2 , which can be elastically retracted. 10. The elastic key 10 has a pop-up position and a depressed position, and the device further includes a control mechanism for switching the elastic key 10 between the pop-up position and the depressed position.

In this embodiment, the elastic button 10 includes an upper end of the button located outside the top cover 9, a lower end 101 of the button located between the top cover 9 and the bottom cover 1, a connecting shaft connected between the upper end of the button and the lower end 101 of the button, the top cover 9 is provided with a through hole for the connecting shaft to pass through, the connecting shaft is sleeved with a spring, the spring is located between the inner side of the upper end of the button and the outer side of the top cover 9, and its elastic expansion and contraction direction is parallel to the expansion and contraction direction of the elastic button 10. . When the elastic button 10 is in the pop-up position, the lower end 101 of the button and the liquid storage bag 2 are arranged at intervals. When the elastic button 10 is in the depressed position, the lower end 101 of the button presses the liquid storage bag 2 downward.

The outer surface of the top cover 9 is provided with a first annular protrusion 11 , and the upper end of the key is located in the first annular protrusion 11 . The first annular protrusion 11 is provided with a slot, and the control mechanism includes an insert piece 12 for inserting into the slot, and the insert piece 12 is used to press against the elastic key 10 in the depressed position after insertion. In this embodiment, the insertion direction of the insert 12 is perpendicular to the elastic expansion and contraction direction of the elastic key 10 . After the insert 12 is inserted, it is pressed against the upper surface of the elastic key 10 .

The inner surface of the bottom cover 1 is provided with a second annular protrusion 15 , and the liquid storage bag 2 is located in the second annular protrusion 15 . The second annular protrusion 15 is provided with a first gap 16 for making room for the first liquid inlet pipe 3 and the liquid outlet pipe. The lower end 101 of the key is used for pressing into the second annular protrusion 15 to squeeze the liquid storage bag 2 . The lower end 101 of the key is provided with a second notch 17 for making way for the first liquid inlet pipe 3 and the liquid outlet pipe. There are two first notches 16 and two second notches 17 respectively, and the two second notches 17 are located directly above the two first notches 16 in a one-to-one correspondence.

The working process of the present embodiment is described in detail below:

During normal infusion, the medicinal liquid in the infusion pump 5 passes through the filter 18, the Y-type tee 13 (one way), the second liquid inlet pipe 14, the T-type tee, and the infusion pipe 6 in sequence, and then is input at a flow rate of 2ml/h. in the patient;

At this time, the insert 12 is inserted into the slot, the elastic button 10 is in the depressed position, and the medicinal liquid in the Y-shaped tee 13 (the other way) passes through the first liquid inlet pipe 3 and the restrictor pipe 7 in turn and then enters the liquid storage bag 2. Fill the reservoir 2 in about 15 minutes;

When the patient feels great pain, pull out the insert 12, the elastic button 10 bounces up, and switches to the bounced position. At this time, press the elastic button 10 to squeeze the liquid storage bag 2, and the liquid storage bag 2 After passing through the liquid outlet pipe, the medicinal liquid in the liquid is squeezed into the hose 8 to deform it, and the medicinal liquid enters the infusion tube 6 through the T-shaped tee, and directly enters the patient's body.

After the operation is completed, continue to insert the insert 12 into the slot to continue the liquid storage operation on the liquid storage bag 2 .

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. A medicinal liquid self-controlling additional device for an infusion pump, characterized in that: comprising a bottom cover, a liquid storage bag arranged in the bottom cover, a first liquid inlet pipe communicating with the liquid storage bag, The liquid outlet pipe communicated with the liquid storage bag through the first end of the three-way joint; the second end and the third end of the three-way joint are respectively connected with the infusion pump and the infusion pipe; the inner part of the liquid storage bag The surface is provided with concave and convex lines; The device further comprises a restrictor pipe communicated between the first liquid inlet pipe and the liquid storage bag, and a hose which is passed through the three-way joint and used to block the first end , the hose is used to communicate the second end and the third end; the hose is used to deform when under pressure, so that the first end is communicated with the third end; The device further includes a top cover covered on the bottom cover, an elastic key provided in the top cover and used for pressing the liquid storage bag, and the elastic key has a pop-up position. and a depressed position, the device further includes a control mechanism for switching the elastic key between the raised position and the depressed position. 2 . The self-controlling additional device for medicinal liquid used in an infusion pump according to claim 1 , wherein the outer surface of the top cover is provided with a first annular protrusion, and the elastic button includes a The upper end of the button in the first annular protrusion, the first annular protrusion is provided with a slot, and the control mechanism includes an insert for inserting into the slot, and the insert is used to abut against the insert after insertion. the elastic button in the depressed position. 3 . The self-controlling additional device for medicinal liquid used in an infusion pump according to claim 2 , wherein the insertion direction of the insert is perpendicular to the elastic expansion and contraction direction of the elastic button. 4 . 4 . The self-controlling additional device for medicinal liquid for an infusion pump according to claim 1 , wherein the first liquid inlet pipe is communicated with the infusion pump through a Y-shaped tee, and the Y The type tee is communicated with the second end through the second liquid inlet pipe. 5 . The self-controlling additional device for medicinal liquid used in an infusion pump according to claim 4 , wherein: the first liquid inlet pipe, the restrictor pipe, the second liquid inlet pipe, the The Y-shaped tee is located in the bottom cover. 6 . The self-controlling additional device for medicinal liquid used in an infusion pump according to claim 1 , wherein the tee joint is a T-shaped tee, and the hose is connected to the T-shaped tee. 7 . in a horizontal line. 7 . The self-controlling additional device for medicinal liquid used in an infusion pump according to claim 6 , wherein the liquid outlet pipe and the T-shaped tee are located in the bottom cover. 8 . 8 . The self-controlling additional device for medicinal liquid used in an infusion pump according to claim 1 , wherein the inner surface of the bottom cover is provided with a second annular protrusion, and the liquid storage bag is located in the In the second annular protrusion, the second annular protrusion is provided with a first notch for making space for the first liquid inlet pipe and the liquid outlet pipe. 9 . The self-controlling additional device for medicinal liquid used in an infusion pump according to claim 8 , wherein the elastic button comprises a lower end of the button for pressing into the second annular protrusion, and the The lower end of the key is provided with a second gap for making way for the first liquid inlet pipe and the liquid outlet pipe.

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