CN216676580U

CN216676580U - Infusion bag capable of preventing blood from flowing back during intravenous infusion

Info

Publication number: CN216676580U
Application number: CN202122830374.4U
Authority: CN
Inventors: 张亚亚
Original assignee: Ningbo Beilun Zongrui Hospital
Current assignee: Ningbo Beilun Zongrui Hospital
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-06-07
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to a transfusion bag capable of preventing blood from flowing back during intravenous transfusion, which comprises a bag body, wherein a puncture plug with a puncture channel is arranged at the lower part of the bag body, a base is arranged inside the bag body, a liquid outlet opposite to the puncture channel is formed in the base, a support framework and an annular lower magnet are sequentially arranged on the periphery of the liquid outlet from inside to outside, a floating component is connected onto the support framework in a sliding manner, an upper magnet opposite to the lower magnet is arranged on the floating component, and the upper magnet can float on a medicine under the action of the floating component. The infusion bag of the technical scheme can avoid opening the mouth of the infusion tube due to the replacement of shaking, has better sealing effect, simple structure and convenient use.

Description

Infusion bag capable of preventing blood from flowing back during intravenous infusion

Technical Field

The utility model relates to the technical field of medical consumables, in particular to an infusion bag capable of preventing blood from flowing back during intravenous infusion.

Background

The intravenous infusion is a treatment mode which utilizes the principles of atmospheric pressure and hydrostatic pressure to transfuse a large amount of sterile liquid, electrolyte and medicine into the body from veins so as to supplement the body fluid and electrolyte of an infusion person or provide nutrient substances, thereby enabling a patient to recover quickly.

In the process of infusion, when the medicine in the infusion bag is in the bottom, the dropping funnel of the infusion apparatus cannot be further supplemented by the medicine of the infusion bag, so that the pressure of a water column in the dropping funnel is gradually reduced, when the pressure of the water column is smaller than the pressure of the vein of a human body, the phenomenon that the venous blood flows back to the infusion tube can occur, visual impact can be caused to a patient, the medical experience of the patient is influenced, and the health of the patient is negatively influenced, therefore, when the medicine in the infusion bag is close to the bottom, medical staff must pay frequent attention, particularly at night, and when the medical staff is busy, the medical staff can take no care, the work burden of the medical staff is increased, in order to solve the problems in the infusion process, the Chinese patent with the publication No. CN204709511U is named as the 'infusion bag for preventing the backflow of blood', and specifically comprises a bag body, a hook is arranged at the top of the bag body, an infusion tube is arranged at the lower end of the bag body, the infusion tube port is equipped with sealed lid, and bag body edge is equipped with the virtual area of welding, is equipped with the separation device between virtual area of welding and the bag body edge, and the separation device size is greater than the transfer line diameter, and when having the medicine in the bag body, the separation device can float in the medicine, when the medicine sees the end, blocks up the transfer line through self gravity along replacing the inner wall gliding, and then can avoid appearing the phenomenon of blood backward flow.

However, in the actual use process, the problem that the blocking device rolls, vibrates and the like in the bag body and is separated from the tube opening of the infusion tube due to the shaking of the bag body caused by the patient adjusting the body position, the collision with foreign objects or other reasons must be considered, and after the blocking device is separated from the tube opening of the infusion tube, the venous blood backflow phenomenon of the patient still occurs, so that the infusion bag with the structure cannot thoroughly prevent the venous blood backflow, and therefore, the infusion bag capable of solving the problem is urgently needed to be invented.

SUMMERY OF THE UTILITY MODEL

Aiming at the above situation, in order to overcome the problem that the prior infusion bag capable of preventing blood backflow is easy to cause separation of the blocking device and the orifice of the infusion tube due to shaking of the bag body in the actual use process, so that the blood backflow cannot be prevented, the utility model aims to provide the infusion bag capable of preventing the orifice of the infusion tube from being opened due to the replacement of shaking, namely, the infusion bag has better sealing effect, simple structure and convenient use and can prevent the blood backflow.

In order to achieve the purpose, the technical solution of the utility model is as follows:

the utility model provides a can prevent infusion bag of blood backward flow during venous transfusion, it includes the bag body, the lower part of the bag body is equipped with subsidiary puncture plug of puncture passageway, bag internal portion is equipped with the base, set up the liquid outlet relative with puncture passageway on the base, the periphery of liquid outlet is from interior to exterior and is equipped with support chassis and is annular lower magnet in proper order, the last sliding connection of support chassis has the component of floating, be equipped with the last magnet relative with lower magnet on the component of floating, it can float on the medicine to go up the magnet under the effect of the component of floating.

Preferably, the central line of the support framework is parallel to the axial lines of the puncture channel and the liquid outlet, the support framework is provided with a sliding groove arranged along the trend of the support framework, the outer wall of the floating component is provided with a sliding block, and the sliding block is connected in the sliding groove and can be driven by the floating component to slide along the sliding groove.

Preferably, the slider is in a concave shape, the floating member is inserted into the concave opening of the slider, and the two ends of the slider and the floating member are fixed by screws.

Preferably, the upper end of the chute is spaced from the upper end surface of the support frame.

Preferably, the support frame includes at least two support frames and is circumferentially arranged along the outer circumference of the lower magnet.

Preferably, the base, the supporting frame, the floating member and the slider are all made of plastic.

Preferably, the lower magnet and the upper magnet are both externally wrapped with silicon membranes.

Preferably, a filtrate screen is arranged in the liquid outlet, and the upper end face of the filtrate screen does not exceed the upper opening end of the liquid outlet.

Preferably, the puncture channel is internally provided with a retention membrane, and the retention membrane is provided with a cross opening.

Preferably, the side of the retention membrane close to the liquid outlet is covered with a sponge layer.

Compared with the prior art, the utility model has the advantages that:

(1) in the utility model, the upper magnet and the lower magnet are mutually adsorbed by magnetic force, so that the problem that the upper magnet is shifted due to shaking caused by the fact that a patient adjusts the body position, collides with foreign objects or other reasons of the bag body can be well avoided, the sealing performance of the bag body when a liquid outlet is closed is ensured, the problem that the health of the patient is harmed due to the backflow of blood under the condition is avoided, the impact on the vision of the patient caused by the backflow of the blood can be prevented, and the patient can have good medical experience.

(2) When the medicine amount in the bag body is close to the bottom, the times of attention of medical staff are reduced, other medical work of the medical staff can be smoothly carried out, and particularly, the burden of nursing work is greatly reduced at night and when the medical work is busy.

(3) The infusion bag is simple in structure and convenient to use, and further can reduce the difficulty of medical workers in use.

Drawings

Fig. 1 is a schematic view of the overall structure of an infusion bag according to the present invention;

FIG. 2 is a schematic cross-sectional view of the section A-A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of the portion A-A of FIG. 1 from another perspective according to the present invention;

FIG. 5 is a schematic view of the internal structure of the infusion bag according to the present invention, when the upper magnet and the lower magnet are attracted to each other;

fig. 6 is a schematic view of the internal structure of an infusion bag provided with two supporting frames according to the present invention;

fig. 7 is a schematic view of the overall structure of the infusion bag slider of the present invention;

fig. 8 is a schematic view of the overall structure of the filtrate net cover of the infusion bag of the present invention;

fig. 9 is a schematic view of the overall structure of the retention film and the sponge layer of the infusion bag of the present invention.

As shown in the figure:

1. a bag body; 2. a puncture plug; 201. a puncture channel; 3. a base; 301. a liquid outlet; 4. a support framework; 401. a chute; 5. a lower magnet; 6. a floating member; 7. an upper magnet; 8. a slider; 9. a filtrate screen; 10. retention of the membrane; 11. a sponge layer.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships which are usually placed when the products of the present invention are used, and are used for the purpose of simplifying the description, but do not indicate or imply that the orientations are necessarily a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not limited thereto.

As shown in fig. 1, 2 and 4, an infusion bag capable of preventing blood from flowing back during intravenous infusion comprises a bag body 1, wherein an opening communicated with the interior of the bag body 1 is formed in the lower part of the bag body 1, a puncture plug 2 is arranged in the opening, a puncture channel 201 is formed in the puncture plug 2, one end of the puncture channel 201 is communicated with the interior of the bag body 1, and the other end of the puncture channel is sealed by a part of the puncture plug 2, which is positioned outside the bag body 1, so that a medicine is sealed in the bag body 1 to avoid leakage;

as shown in fig. 2, 4 and 5, a base 3 is provided inside the bag body 1, the base 3 has a certain area and is connected with the inner bottom wall of the bag body 1, a liquid outlet 301 opposite to the puncture channel 201 is provided on the base 3 to ensure that the medicine in the bag body 1 can pass through the liquid outlet 301 and enter the puncture channel 201, a lower magnet 5 is provided on the periphery of the liquid outlet 301, the lower magnet 5 is annular so as to surround the liquid outlet 301, specifically, the lower magnet 5 is fixed on the base 3 on the periphery of the liquid outlet 301, in the present invention, a receiving groove is provided on the base 3, the lower magnet 5 is received in the receiving groove, and the receiving groove and the lower magnet 5 are identical in shape and size, at this time, the upper end face of the lower magnet 5 is flush with the bottom face, a support frame 4 is provided on the base 3 in the peripheral direction of the lower magnet 5, in the present invention, the support frame 4 is arranged along the direction perpendicular to the bottom wall and the top wall of the bag body 1, the height of the floating component 6 can be equal to or less than the distance between the bottom wall and the top wall of the bag body 1, no special provisions are made, the floating component 6 is connected with the support framework 4 in a sliding way, the floating component 6 is made of a material capable of floating in the medicine and can be ensured to be capable of ascending and descending along with the change of the medicine amount, namely, the change of the medicine liquid level is capable of ascending and descending along the trend of the support framework 4, the floating component 6 is provided with the upper magnet 7, when the floating component 6 is arranged, the floating component 6 can drive the upper magnet 7 to float on the liquid level of the medicine, so that the upper magnet 7 can ascend and descend along with the change of the liquid level, the upper magnet 7 is arranged on the position of the floating component 6, which is opposite to the lower magnet 5, when the medicine amount in the bag body 1 is reduced, the height of the upper magnet 7 in the bag body 1 is reduced, so that the distance between the upper magnet 5 and the lower magnet 7 is continuously reduced until the medicine amount is reduced to a certain degree, the lower magnet 5 and the upper magnet 7 can be mutually adsorbed, under the action of magnetic force, the upper magnet 7 is directly adsorbed on the outer surface of the lower magnet 5, so that the liquid outlet 301 on the base 3 is sealed, and the communication between the bag body 1 and the infusion tube is blocked, in the utility model, the upper magnet 7 can be round, square or other shapes, only the liquid outlet 301 on the base 3 can be completely sealed when being attached to the lower magnet 5, because the upper end surface of the lower magnet 5 is kept flush with the bottom surface, the upper magnet 7 except the part opposite to the lower magnet 5 can completely cover the base 3 at the periphery of the liquid outlet 301 after being adsorbed, and the problem that the inside of the bag body 1 is still communicated with the infusion tube in the adsorption state due to the clearance between the upper magnet 7 and the base 3 is avoided, in the utility model, the upper magnet 7 and the lower magnet 5 are mutually adsorbed through magnetic force, so that the shaking of the bag body 1 caused by the position adjustment of a patient, the collision with foreign objects or other reasons can be well avoided, lead to the problem that magnet 7 shifted, thereby guarantee the leakproofness when sealing liquid outlet 301, avoid appearing the blood backward flow under this condition, and cause the problem of harm to patient health, and can prevent to cause the impact to patient's vision because of the blood backward flow, make the patient can have good experience of seeking medical advice, and simultaneously, when the medicine volume is close to seeing the end in the bag body, reduce the number of times that medical personnel paid close attention to, make medical personnel's other medical work can develop smoothly, especially at night, and when medical work is busy, greatly alleviate the burden of nursing work.

Preferably, the upper magnet 7 and the lower magnet 5 are weak magnets, for example, magnets subjected to high-temperature heating treatment in advance are selected to weaken magnetism, so as to prevent the problem that residual medicine cannot be discharged due to adsorption of the upper magnet 7 and the lower magnet 5 when the medicine is less but the medicine is still not yet in use.

As shown in fig. 2 to 5, further, the central line of the supporting framework 4 is parallel to the axial lines of the puncture channel 201 and the liquid outlet 301, the supporting framework 4 is provided with a sliding groove 401, the sliding groove 401 is arranged along the trend of the supporting framework 4, the outer wall of the floating member 6 is provided with a sliding block 8, the sliding block 8 is connected in the sliding groove 401, the sliding block 8 can slide along the sliding groove 401, when the floating component 6 is changed and lifted along with the liquid level of the medicine, the sliding block 8 can be driven to synchronously lift, and when the upper magnet 7 and the lower magnet 5 are attracted to each other, the upper magnet 7 is driven to slide downwards along the sliding groove 401 under the action of magnetic force, in the utility model, the sliding groove 401 is arranged along the direction of the supporting framework 4, so that the sliding block 8 can always keep sliding in the direction vertical to the base 3, and the upper magnet 7 can always keep opposite to the lower magnet 5 in the sliding process.

As shown in fig. 2, 4, 5 and 7, the slider 8 is further shaped like a Chinese character 'ao', the floating member 6 is inserted into the recess between the two ends of the slider 8, the floating member 6 is restricted from moving up and down relative to the slider 8 by the two ends of the slider 8, and the two ends of the slider 8 and the floating member 6 are fixed by screws, so that the fixing effect between the two is better strengthened, and the floating member 6 is prevented from moving up and down relative to the slider while the floating member 6 is further restricted from moving horizontally relative to the slider.

As shown in fig. 3, further, a partition is maintained between the upper end of the sliding chute 401 and the upper end surface of the supporting framework 4, based on the above arrangement, the sliding block 8 can be prevented from being separated from the upper end of the sliding chute 401 when ascending along the sliding chute 401, and it should be mentioned that, in the present invention, the lower end of the sliding chute 401 and the top surface of the base 3 extend, so as to ensure that the upper magnet 7 can be normally adsorbed to the lower magnet 5.

As shown in fig. 6, further, the support frames 4 at least include two support frames 4, and each support frame 4 is annularly arranged along the periphery of the lower magnet 5, and based on the above arrangement, the floating member 6 can be supported in at least two directions, so that the stress of the floating member is more uniform, and the floating member is prevented from being dislocated from the slider 8.

Further, the base 3, the floating component 6, the supporting framework 4 and the sliding block 8 are all made of plastics, and due to the fact that part of the medicines are corrosive, the base 3, the floating component 6, the supporting framework 4 and the sliding block 8 need to be in contact with the medicines for a long time, interference caused by the corrosivity of the medicines can be reduced due to the materials made of plastics, and corrosion is avoided.

Further, the lower magnet 5 and the upper magnet 7 are respectively covered with a silicone membrane (not shown in the drawing), and the silicone membrane is arranged to protect the lower magnet 5 and the upper magnet 7 and avoid the problem of corrosion caused by direct contact with the medicine.

As shown in fig. 2, fig. 4 and fig. 8, further, a filtrate screen 9 is provided therein, and specifically, the filtrate screen 9 is fixed to the inner wall of the liquid outlet 301, based on the above arrangement, after the bottle stopper puncture needle is inserted from the puncture channel 201, the bottle stopper puncture needle can be blocked by the filtrate screen 9 to prevent the bottle stopper puncture needle from discontinuously exceeding the upper opening end of the liquid outlet 301, so as to ensure that the upper magnet 7 can be adsorbed by the lower magnet 5 and completely attached to the surface of the base 3 in the adsorbed state, and the medicine in the bag body 1 can fall into china through the puncture needle hole site in the puncture channel 201 through the mesh holes on the filtrate screen 9, so as to achieve normal infusion, and at the same time, the arrangement can enable medical personnel to determine the position of the bottle stopper puncture needle more quickly, so as to reduce the nursing burden of the medical personnel, and accordingly, the upper end surface of the filtrate screen 9 does not exceed the upper opening end of the second liquid outlet hole, so as not to affect the effect of the upper magnet 7 being completely attached to the surface of the base 3 in the attracted state.

As shown in fig. 4 and 9, further, the puncture channel 201 is provided with the retention membrane 10 in a covering manner, the retention membrane 10 can separate the medicine, so that the medicine is prevented from leaking out when the bottle stopper puncture needle is inserted, the hand protection of the medical staff is improved, and the retention membrane 10 is provided with a cross opening for facilitating the insertion of the bottle stopper puncture needle.

As shown in fig. 4 and fig. 9, further, the side of the retention membrane 10 close to the liquid outlet 301 is covered with the sponge layer 11, and when the sponge layer 11 is used for absorbing the puncture, the residual medicine accumulated on the side of the retention membrane 10 close to the liquid outlet 301 leaks out of the liquid outlet pipe of the medicine bag, so that when the medical staff inserts the puncture needle into the liquid outlet pipe through the retention membrane 107, the residual medicine is prevented from leaking out, the medicine is prevented from corroding the hand of the medical staff, and the hand of the medical staff is further protected by the further reinforcement.

With reference to fig. 1 to 9, when the infusion bag of the present invention is used, a bottle stopper puncture needle of an infusion apparatus is inserted from one end of the puncture stopper 2 located outside the bag body 1, the bottle stopper puncture needle enters the puncture channel 201 and passes through the cross opening and the water absorbing layer of the retention membrane 10 until the tip of the bottle stopper puncture needle contacts the filtrate screen 9 located in the liquid outlet 301 of the base 3 in the bag body 1, at this time, medical personnel can obviously feel the resistance of the filtrate screen 9 and stop puncturing, at this time, the medicine in the bag body 1 can sequentially pass through the liquid outlet 301 and the filter hole on the filtrate screen 9 to enter the puncture channel 201, and finally enters the patient's vein through the infusion tube via the hole on the puncture needle, along with the advance of the infusion process, the amount of the medicine in the bag body 1 gradually decreases, the liquid level of the medicine gradually decreases, and in this process, the floating member 6 floating on the liquid level of the medicine synchronously decreases along with the decrease of the liquid level of the medicine, and drive slider 8 rather than being connected and slide to 3 directions of base along spout 401 on the support chassis 4, it moves to 5 directions synchronous motion of magnet 5 down to drive magnet 7 simultaneously, make the distance between magnet 7 and lower magnet 5 constantly reduce, after the medicine volume reduces to a certain extent, can adsorb each other between lower magnet 5 and last magnet 7, under the effect of magnetic force, make magnet 7 adsorb on the surface of magnet 5 down, and laminate with the upper surface of base 3, thereby liquid outlet 301 on the base 3 seals completely, and then block the intercommunication of the bag body 1 and transfer line, thereby solve the problem of patient's blood backward flow when the medicine volume is less completely.

The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as hereinafter claimed.

Claims

1. The utility model provides a can prevent infusion bag of blood backward flow during venous transfusion, it includes the bag body (1), the lower part of the bag body (1) is equipped with puncture stopper (2) of subsidiary puncture channel (201), a serial communication port, the inside base (3) that is equipped with of bag body (1), seted up on base (3) with puncture channel (201) relative liquid outlet (301), the periphery of liquid outlet (301) is equipped with in proper order from inside to outside and is annular magnet (5) down, sliding connection has unsteady component (6) on support frame (4), be equipped with on unsteady component (6) with magnet (7) are relative down, go up magnet (7) can float on the medicine under the effect of unsteady component (6).

2. The infusion bag capable of preventing blood backflow during intravenous infusion according to claim 1, wherein a center line of the support frame (4) is parallel to axes of the puncture channel (201) and the liquid outlet (301), a sliding groove (401) arranged along the trend of the support frame (4) is formed in the support frame (4), a sliding block (8) is arranged on the outer wall of the floating member (6), and the sliding block (8) is connected to the sliding groove (401) and can be driven by the floating member (6) to slide along the sliding groove (401).

3. The infusion bag capable of preventing the blood from flowing back during the intravenous infusion according to claim 2, wherein the sliding block (8) is in a concave shape, the floating member (6) is inserted into the notch of the sliding block, and the two ends of the sliding block (8) and the floating member (6) are fixed through screws.

4. The infusion bag capable of preventing the backflow of blood during intravenous infusion according to claim 2, wherein the upper end of the chute (401) is separated from the upper end face of the support frame (4).

5. The infusion bag capable of preventing the backflow of blood during intravenous infusion according to claim 1, wherein the support frame (4) comprises at least two pieces and is annularly distributed along the periphery of the lower magnet (5).

6. The infusion bag capable of preventing blood backflow during intravenous infusion according to claim 2, wherein the base (3), the support frame (4), the floating member (6) and the slider (8) are all made of plastic.

7. The infusion bag capable of preventing the blood from flowing back during the intravenous infusion according to claim 1, wherein the lower magnet (5) and the upper magnet (7) are wrapped with silicone films.

8. The infusion bag capable of preventing blood from flowing back during intravenous infusion according to claim 1, wherein a filtrate net cover (9) is arranged in the liquid outlet (301), and the upper end face of the filtrate net cover (9) does not exceed the upper opening end of the liquid outlet (301).

9. The infusion bag capable of preventing blood backflow during intravenous infusion according to claim 1, wherein the puncture channel (201) is covered with a retention membrane (10), and the retention membrane (10) is provided with a cross-shaped opening.

10. The infusion bag capable of preventing the blood from flowing back during the intravenous infusion according to claim 9, wherein the side of the retention membrane (10) close to the liquid outlet (301) is covered with a sponge layer (11).