CN113171510A

CN113171510A - Transfusion system

Info

Publication number: CN113171510A
Application number: CN202110455105.6A
Authority: CN
Inventors: 王莉; 杨英
Original assignee: First Affiliated Hospital of PLA Military Medical University
Current assignee: First Affiliated Hospital of PLA Military Medical University
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-07-27
Anticipated expiration: 2041-04-26
Also published as: CN113171510B

Abstract

The invention discloses an infusion apparatus, which sequentially comprises an infusion needle, a luer connector, a flow rate regulator, a Y-shaped infusion tube, a first drip tube, a second drip tube and two puncture outfits from bottom to top, wherein the first input end and the second input end are respectively provided with the first drip tube and the second drip tube; the switch controller comprises a driving component and a triggering component; the driving assembly is arranged in the first drip chamber, the triggering assembly is arranged in the second drip chamber, and the driving assembly can drive the triggering assembly to open the switch valve. When the liquid medicine in the first infusion bottle is delivered, the infusion of the second infusion bottle can be automatically started.

Description

Transfusion system

Technical Field

The invention relates to an infusion device, in particular to an infusion apparatus.

Background

At present, a double-head infusion apparatus is a necessary medical apparatus for infusion by a double-fluid bottle when clinical infusion is carried out. The double-head infusion apparatus sequentially comprises an infusion needle, a luer connector, a flow rate regulator, a dropping cylinder, a Y infusion tube and a puncture outfit connected with the Y infusion tube from bottom to top. And the two ends of the Y transfusion tube connected with the two puncture outfits are respectively sleeved with a switch clamp. During infusion, two infusion bottles needing to wait for infusion are hung on the infusion support, the two puncture outfits are respectively connected with the two infusion bottles, one of the two switch clamps is kept closed, the other switch clamp is kept opened, and after the liquid medicine in one infusion bottle is infused, the remaining switch clamp is manually opened, so that the second infusion bottle can be infused.

However, in the clinical transfusion process, the family members of the patient or the patient generally perform the opening operation of the switch clamp, and in the clinical discovery, some family members can not operate or can break the switch clamp in the operation process, or some family members can only directly call a nurse by pressing a bell without fear of operating the switch clamp, so that the workload of the nurse is increased, and the risk of blood pouring is increased.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an infusion apparatus, which can automatically start the infusion of a second infusion bottle when the liquid medicine in a first infusion bottle is delivered.

In order to achieve the purpose, the invention is realized by the following technical scheme: a kind of transfusion system is disclosed, which comprises a transfusion system,

the device sequentially comprises an infusion needle, a luer joint, a flow rate regulator, a Y-shaped infusion tube, a first drip tube, a second drip tube and two puncture outfits from bottom to top; one end of the Y-shaped infusion tube is an output end, the other two ends of the Y-shaped infusion tube are respectively a first input end and a second input end, the first input end and the second input end are respectively provided with the first drip cup and the second drip cup, and the two puncture outfits are respectively arranged on the first input end and the second input end; further comprising:

the switch valve is arranged in the second drip chamber and positioned close to one side of the output end, and when the switch valve is opened, liquid can flow towards the direction of the output end through the switch valve; and

the switch controller comprises a driving component and a triggering component; the drive assembly sets up in the first drip chamber, trigger the subassembly and set up in the second drip chamber, work as first drip chamber with the second drip chamber is close to each other just the top of first drip chamber and second drip chamber is located same horizontal plane, along with liquid medicine in the first drip chamber reduces gradually, drive assembly can drive trigger the subassembly will the ooff valve is opened.

Further, the driving assembly comprises a floating plate and a first magnetic block; the floating plate is arranged in the first drip cup, a leak hole is formed in the floating plate, the first magnetic block is embedded in the floating plate, and the floating plate can float freely in the first drip cup when the first drip cup contains liquid medicine; the trigger assembly comprises a first filter plate and a jacking part, the first filter plate is arranged in the second drip chamber and can slide up and down along the inner wall of the second drip chamber, the first filter plate is magnetic, the magnetism of the first filter plate is opposite to that of the first magnetic block, and the magnetic force between the first filter plate and the first magnetic block is greater than the gravity of the trigger assembly; the top pressing portion is arranged on the first filter plate and is located close to one side of the switch valve, when the first drip tube and the second drip tube are close to each other, the driving assembly can drive the top pressing portion to be pressed on the switch valve so as to open the switch valve when the driving assembly moves downwards.

Further, the switching valve comprises a mounting plate, an elastic member and a plug; the mounting plate is transversely fixed in the second drip cup, a water through hole is formed in the center of the mounting plate, the plug is connected to the mounting plate through the elastic piece and is positioned on one side close to the output end, and the elasticity of the elastic piece is equal to the gravity of the trigger assembly; the end part of the plug is plugged in the water passing hole and is opposite to the jacking part, and the elastic supporting force of the elastic piece is greater than the gravity of the trigger assembly.

Further, the switch controller still includes safe subassembly, safe subassembly includes the second filter plate that has magnetism, the second filter plate is fixed in the second drip chamber to be located and keep away from one side of output, the second filter plate with the magnetism of first filter plate is opposite, and magnetic force between the two equals the gravity of trigger subassembly.

Further, the side wall of the floating plate is provided with a first ball.

Furthermore, the inner wall of the second drip chamber is vertically provided with a guide groove, the side wall of the first filter plate is provided with a bulge, and the bulge can be slidably clamped in the guide groove.

Further, the side wall of the projection is provided with a second ball.

The connecting piece is arranged on the outer walls of the first drip tube and the second drip tube and can connect the first drip tube with the second drip tube.

Furthermore, the connecting piece includes thread gluing matte and pastes the thorn face, the thread gluing matte with paste the thorn face and set up respectively first drip chamber with the outer wall of second drip chamber, just first drip chamber with second drip chamber with the distance between the puncture ware is unanimous.

The invention has the beneficial effects that:

the infusion apparatus comprises an infusion needle, a Ruhr joint, a flow rate regulator, a Y-shaped infusion tube, a first drip tube, a second drip tube, two puncture outfits, a switch valve and a switch controller, wherein the infusion needle, the Ruhr joint, the flow rate regulator, the Y-shaped infusion tube, the first drip tube, the second drip tube and the two puncture outfits are sequentially arranged from bottom to top; the switch controller comprises a driving component and a triggering component; the drive assembly sets up in first drip chamber, triggers the subassembly and sets up in the second drip chamber, and when first drip chamber and second drip chamber are close to each other and the top of first drip chamber and second drip chamber is located same horizontal plane, along with the liquid medicine in the first drip chamber reduces gradually, drive assembly can drive trigger assembly and open the ooff valve. By the arrangement, after the liquid medicine in the first infusion bottle is conveyed, the liquid medicine conveying of the second infusion bottle can be automatically started without manual operation, so that the workload of medical staff and patients is reduced, and the infusion safety is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

Fig. 1 is a schematic view of an infusion set according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the infusion set shown in FIG. 1 with the first input end and the second input end in a separated state;

FIG. 3 is a schematic view of the trigger assembly of the infusion set shown in FIG. 1 opening the switch valve;

FIG. 4 is a partial schematic view of FIG. 3 at A;

FIG. 5 is a schematic diagram of the first dropper of the infusion apparatus shown in FIG. 1 after the liquid medicine has been completely discharged;

reference numerals:

100. a Y-shaped infusion tube; 110. a first input terminal; 120. a second input terminal; 130. an output end; 200. A first drip chamber; 300. a second drip chamber; 310. a guide groove; 400. an on-off valve; 410. mounting a plate; 411. water passing holes; 420. an elastic member; 430. a plug; 500. a switch controller; 510. a drive assembly; 511. a floating plate; 512. a first magnetic block; 513. a first ball bearing; 520. a trigger component; 521. a first filter plate; 522. a jacking portion; 523. a protrusion; 524. a second ball bearing; 530. a security component; 600. a connecting member; 610. sticking buckle hair surface; 620. a magic stabbing surface.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 5, the present invention provides an infusion apparatus, which sequentially comprises an infusion needle, a luer connector, a flow rate regulator, a Y-shaped infusion tube 100, a first drip chamber 200, a second drip chamber 300, and two puncture devices from bottom to top. One end of the Y-shaped infusion tube 100 is an output end 130, and the other two ends of the Y-shaped infusion tube 100 are respectively a first input end 110 and a second input end 120. The ends of the first input 110 and the second input 120 are provided with a first drip chamber 200 and a second drip chamber 300, respectively. Two piercers are provided on the first input 110 and the second input 120, respectively. The infusion set further comprises a switch valve 400 and a switch controller 500 for infusion requiring two infusion bottles.

Specifically, the on-off valve 400 is disposed in the second dropping cylinder 300 and located at a side close to the output end 130, and when the on-off valve 400 is opened, the liquid in the second dropping cylinder 300 can flow toward the output end 130 through the on-off valve 400. The switch controller 500 includes a drive component 510 and a trigger component 520. The driving assembly 510 is disposed in the first drip chamber 200, the trigger assembly 520 is disposed in the second drip chamber 300, and when the first drip chamber 200 and the second drip chamber 300 are close to each other and the top ends of the first drip chamber 200 and the second drip chamber 300 are located at the same horizontal plane, the driving assembly 510 can drive the trigger assembly 520 to open the on-off valve 400 as the liquid medicine in the first drip chamber 200 is gradually lowered.

When the infusion support is used, a first infusion bottle and a second infusion bottle which need to be conveyed are hung on the infusion support, the puncture outfit on the first input end 110 is connected with the first infusion bottle, liquid in the first infusion bottle flows into the first drip cup 200 and flows into a human body along the output end 130, and the switch valve 400 is closed at the moment, so that liquid medicine can be prevented from flowing into the second drip cup 300; the second infusion bottle is then connected to the spike at the second input end 120, and the switch valve 400 is closed to prevent the fluid from the second infusion bottle from flowing into the output end 130. Next, the first drip cup 200 and the second drip cup 300 are close to each other, and the top ends of the first drip cup 200 and the second drip cup 300 are located on the same horizontal plane, and as the liquid medicine in the first drip cup 200 gradually decreases, the liquid level gradually decreases, the driving component 510 drives the trigger component 520 to move down until the trigger component 520 abuts against the switch valve 400, and then the driving component continues to press down until the trigger component 520 continues to press down to open the switch valve 400, so as to deliver the liquid medicine of the second infusion bottle.

In the present embodiment, the driving assembly 510 includes a floating plate 511 and a first magnetic block 512. The floating plate 511 is arranged in the first drip chamber 200, and the floating plate 511 is provided with a leak hole for the liquid medicine to pass through. The first magnetic block 512 is embedded in the floating plate 511, and when the first drip chamber 200 contains the liquid medicine, the floating plate 511 can float on the liquid medicine in the first drip chamber 200. When the first input end 110 is connected to an infusion bottle, the medical liquid enters the first drip chamber 200, and the floating plate 511 will float up slowly as the medical liquid increases.

The trigger assembly 520 includes a first filter plate 521 and a press portion 522. The first filter plate 521 is disposed in the second drip chamber 300 above the open/close valve 400, and can slide up and down along the inner wall of the second drip chamber 300. The first filter plate 521 has magnetic attraction with the first magnetic block 512, and the magnetic force between the first filter plate 521 and the first magnetic block 512 is greater than the gravity of the trigger assembly 520. When the floating plate 511 and the first filter plate 521 approach each other, the first magnetic block 512 and the first filter plate 521 are in an attracted state, and when the first magnetic block 512 moves, the first filter plate 521 can be driven to move. The hold-down portion 522 is provided on the first filter plate 521 on the side close to the open/close valve 400. After the liquid medicine in the first infusion bottle is delivered, the liquid medicine in the first drip tube 200 is slowly reduced, the floating plate 511 drives the first magnetic block 512 to move downwards along with the liquid level, namely, the whole driving assembly 510 moves downwards, when the first drip tube 200 and the second drip tube 300 are closed, under the mutual force action of the first magnetic block 512 and the first filter plate 521, the driving assembly 510 moves downwards until the horizontal height is lower than the switch valve 400, the driving assembly 510 can drive the whole trigger assembly 520 to move downwards until the top pressing part 522 presses against the switch valve 400, so as to open the switch valve 400.

In the present embodiment, the switching valve 400 includes a mounting plate 410, an elastic member 420, and a plug 430. The mounting plate 410 is transversely fixed in the second drip chamber 300 close to the output end 130, a water through hole 411 is formed in the center of the mounting plate 410, the plug 430 is connected to the mounting plate 410 through the elastic member 420 and is positioned on one side close to the output end 130, and the elastic force of the elastic member 420 is greater than the gravity of the trigger assembly 520; the end of the plug 430 is plugged into the water through hole 411 and faces the pressing portion 522.

In particular implementations, the resilient member 420 may preferably be a spring. The elastic force of the elastic member 420 is selected as follows: in the initial state, the plug 430 is plugged in the water through hole 411 under the pulling force of the elastic member 420, the on-off valve 40 is closed, and the pulling force of the elastic member 420 is greater than the gravity of the trigger assembly 520; when the whole trigger assembly 520 is activated to move down to abut against the plug 430 and move down to overcome the elastic force to open the switch valve 400, the influence of the magnetic force, gravity and the elastic force on the buoyancy should be considered, and at this time, (the gravity of the trigger assembly + the magnetic force between the trigger assembly and the driving assembly) > (the buoyancy of the plug 430 + the pulling force of the elastic member 420 + the buoyancy of the first filter plate) should be considered.

The end of the plug 430 is plugged in the water through hole 411 and faces the pressing portion 522, and the elastic supporting force of the elastic member 420 is greater than the gravity of the trigger assembly 520 but less than the pulling force of the driving assembly 510. When the driving assembly 510 drives the triggering assembly 520 to move downwards, the pressing portion 522 can be pressed against the plug 430 until the plug 430 is separated from the water through hole 411, so that the flow channel of the water through hole 411 is opened, and the liquid can be used for conveying the liquid medicine in the second infusion bottle.

In a preferred embodiment, in order to prevent the first filter plate 521 from shifting when moving up and down in the second drip chamber 300, the inner wall of the second drip chamber 300 is vertically provided with a guide groove 310, the side wall of the first filter plate 521 is provided with a protrusion 523, and the protrusion 523 is slidably engaged in the guide groove 310. The guide groove 310 ensures that the first filter plate 521 vertically moves up and down in the second drip chamber 300.

Further, in order to reduce the frictional force, the side wall of the floating plate 511 is provided with the first ball 513, the side wall of the boss 523 is provided with the second ball 524, and the sliding friction is changed into the rolling friction by the first ball 513 and the second ball 524, thereby reducing the frictional force.

As a more preferred embodiment, the switch controller 500 further comprises a security component 530. The safety assembly 530 can ensure that the trigger assembly 520 is in a separated state from the on-off valve 400 when the on-off valve 400 is not required to be opened. Specifically, the safety assembly 530 includes a second filter plate with magnetic properties, the second filter plate is fixed in the second drip chamber 300 and located at a side far away from the output end 130, the second filter plate is opposite to the first filter plate 521 in magnetic properties, and the magnetic force between the second filter plate and the first filter plate is equal to the gravity of the trigger assembly 520.

In the non-infusion state, the second filter plate and the first filter plate 521 attract each other, so that the trigger assembly 520 is away from the open/close valve 400. When infusion is performed, when the first drip cup 200 and the second drip cup 300 are closed, the first filter plate 521 and the first magnetic block 512 attract each other, and since the attraction force between the first filter plate 521 and the first magnetic block 512 is greater than the attraction force between the first filter plate 521 and the second filter plate, the first filter plate 521 can be driven to move downwards until abutting against the plug 430, so that the plug 430 is pushed open.

As a more preferred embodiment, the present infusion set further comprises a connector 600. The connecting piece 600 is arranged on the outer walls of the first drip chamber 200 and the second drip chamber 300 and can connect the first drip chamber 200 with the second drip chamber 300, and the connecting piece 600 ensures that the first drip chamber 200 and the second drip chamber 300 are in a connecting state in the conveying process. Thereby ensuring that the driving assembly 510 and the triggering assembly 520 can interact.

Specifically, the connecting member 600 includes a hook and loop fastener matte surface 610 and a sticking patch surface 620. The sticking rough surface 610 and the sticking rough surface 620 are respectively arranged on the outer walls of the first drip chamber 200 and the second drip chamber 300 and have the same distance with the puncture outfit. When in use, the first drip chamber 200 and the second drip chamber 300 can be quickly fixed together through the hook and loop rough surface 610 and the adhesive surface 620. In other embodiments, the connecting member 600 may also be in the form of a strap, and may be tied by a strap, or may connect and fix the first drip chamber 200 and the second drip chamber 300.

The working principle and the using mode of the infusion set are as follows:

when not in use, the trigger assembly 520 is attracted to the second filter plate by the attraction force of the second filter plate, and the trigger assembly 520 is separated from the open-close valve 400. When infusion is needed, a first infusion bottle and a second infusion bottle which need to be conveyed are hung on an infusion support, the puncture outfit on the first input end 110 is connected with the first infusion bottle, liquid flows into the first drip tube 200, the floating plate 511 slowly floats upwards under the action of buoyancy, the liquid flows into a human body along the output end 130, the liquid in the first infusion bottle is infused, and at the moment, the switch valve 400 is in a closed state;

subsequently, the puncture device at the second input end 120 is connected to the second infusion bottle, and the switch valve 400 is still closed, so that the liquid of the second infusion bottle can be prevented from flowing into the output end 130. Next, the first drip cup 200 and the second drip cup 300 are close to each other and are adhered to each other through the hook-and-loop rough surface 610 and the hook-and-loop stabbing surface 620, and the top ends of the first drip cup 200 and the second drip cup 300 are located on the same horizontal plane, at this time, the first magnetic block 512 and the first filter plate 521 are attracted to each other, after the liquid medicine in the first infusion bottle is delivered, the liquid medicine in the first drip cup 200 will gradually decrease, the floating plate 511 will drive the first magnetic block 512 to move down along with the liquid level, that is, the driving assembly 510 moves down, due to the interaction force between the first magnetic block 512 and the first filter plate 521, the driving assembly 510 can drive the triggering assembly 520 to move down, so that the pushing portion 522 is pressed against the plug 430 until the plug 430 is separated from the water through hole 411, so that the flow passage of the water through hole 411 is opened, and the liquid medicine in the second infusion bottle can be delivered until the liquid medicine is delivered.

By the arrangement, after the liquid medicine in the first infusion bottle is conveyed, the liquid medicine conveying of the second infusion bottle can be automatically started without manual operation, so that the workload of medical staff and patients is reduced, and the infusion safety is improved.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. An infusion apparatus is characterized by sequentially comprising an infusion needle, a luer connector, a flow rate regulator, a Y-shaped infusion tube, a first drip tube, a second drip tube and two puncture outfits from bottom to top; one end of the Y-shaped infusion tube is an output end, the other two ends of the Y-shaped infusion tube are respectively a first input end and a second input end, the first input end and the second input end are respectively provided with the first drip cup and the second drip cup, and the two puncture outfits are respectively arranged on the first input end and the second input end; further comprising:

the switch valve is arranged in the second drip chamber and is positioned at one side close to the output end, and when the switch valve is opened, liquid in the second drip chamber can flow towards the direction of the output end through the switch valve; and

the switch controller comprises a driving component and a triggering component; the drive assembly sets up in the first drip chamber, trigger the subassembly and set up in the second drip chamber, work as first drip chamber with the second drip chamber is close to each other just the top of first drip chamber and second drip chamber is located same horizontal plane, along with liquid medicine in the first drip chamber reduces gradually, reduces, drive assembly can drive trigger the subassembly will the ooff valve is opened.

2. The infusion set according to claim 1, wherein the drive assembly comprises a float plate and a first magnetic block; the floating plate is arranged in the first drip cup, a leak hole is formed in the floating plate, the first magnetic block is embedded in the floating plate, and when the first drip cup contains liquid medicine, the floating plate can float on the liquid medicine in the first drip cup; the trigger assembly comprises a first filter plate and a jacking part, the first filter plate is arranged in the second drip chamber above the switch valve and can slide up and down along the inner wall of the second drip chamber, the first filter plate has magnetism which is mutually attracted with the first magnetic block, and the magnetic force between the first filter plate and the first magnetic block is greater than the gravity of the trigger assembly; the top pressing portion is arranged on the first filter plate and is located close to one side of the switch valve, when the first drip tube and the second drip tube are close, the driving assembly moves downwards to a horizontal height and is lower than the switch valve, and the driving assembly can drive the top pressing portion to be pressed on the switch valve so as to open the switch valve.

3. The infusion set according to claim 2, wherein the switching valve comprises a mounting plate, an elastic member and a plug; the mounting plate is transversely fixed in the second drip chamber close to the output end, a water through hole is formed in the center of the mounting plate, the plug is connected to the mounting plate through the elastic piece and located on one side close to the output end, and the elasticity of the elastic piece is larger than the gravity of the trigger assembly; the end part of the plug is plugged in the water passing hole and is opposite to the jacking part.

4. The infusion set according to claim 2, wherein the switch controller further comprises a safety assembly, the safety assembly comprises a second filter plate with magnetism, the second filter plate is fixed in the second drip chamber and located on the side far away from the output end, the second filter plate is opposite to the first filter plate in magnetism, and the magnetic force between the second filter plate and the first filter plate is equal to the gravity of the trigger assembly.

5. The infusion set according to claim 2, wherein the side wall of the floating plate is provided with a first ball.

6. The infusion apparatus according to claim 2, wherein a guide groove is vertically formed in the inner wall of the second drip chamber, a protrusion is arranged on the side wall of the first filter plate, and the protrusion is slidably clamped in the guide groove.

7. The infusion set according to claim 6, wherein the side wall of the boss is provided with a second ball bearing.

8. The infusion set according to claim 1, further comprising a connector disposed on an outer wall of the first drip chamber and the second drip chamber for connecting the first drip chamber and the second drip chamber.

9. The infusion apparatus according to claim 8, wherein the connector comprises a hook and loop fastener rough surface and a sticking patch surface, the hook and loop fastener rough surface and the sticking patch surface are respectively arranged on the outer walls of the first drip chamber and the second drip chamber, and the distances between the first drip chamber and the second drip chamber and the puncture outfit are consistent.