CN210542724U

CN210542724U - Dual-liquid-stopping self-exhaust safe dropping funnel

Info

Publication number: CN210542724U
Application number: CN201822272133.0U
Authority: CN
Inventors: 雷冰; 陈浩; 代永祥
Original assignee: Sichuan Prius Biotechnology Co ltd
Current assignee: Sichuan Prius Biotechnology Co ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-05-19
Anticipated expiration: 2028-12-29

Abstract

The utility model discloses a dual end liquid is from exhausting safe drip chamber has solved current plane membrane in assembly, sterilization and use, appears warping easily and shifts, influences the problem of the end liquid effect of drip chamber. The utility model discloses a casing and body, the casing upper end sets up the inlet, the bottom of casing sets up the liquid outlet, the body is located in the casing, the body include the body and with the lower floater of connection can be dismantled to the floater, the bottom of floater sets up the basement membrane down, the body includes grafting portion down, grafting portion includes the plugboard and sets up perpendicularly the stand at plugboard middle part, the stand runs through along the axial and sets up the through-hole, the through-hole includes centre bore and side opening, the floater includes the center pin, the center pin peg graft in the centre bore. The utility model has the advantages of good sealing performance of the bottom film, good liquid stopping effect of the drip chamber and the like.

Description

Dual-liquid-stopping self-exhaust safe dropping funnel

Technical Field

The utility model relates to a transfusion system technical field, concretely relates to dual end liquid is from exhaust safety dropping funnel.

Background

The dropping funnel is one of the key parts of the infusion apparatus, the speed of the output of the liquid medicine can be observed through the dropping funnel, and important information such as whether the liquid medicine is blocked or not, whether the liquid medicine is completely infused or not can be judged, so that the infusion apparatus has important significance for ensuring the safety of infusion patients.

However, even if the dropping funnel is arranged, the situation that the liquid medicine in the dropping funnel cannot be noticed timely due to carelessness is avoided, when the liquid medicine is completely infused, air enters if a needle is not pulled out timely, embolism can be caused if the air enters a blood vessel along an infusion tube, and death can be caused in serious situations, so that the arrangement of the dropping funnel capable of stopping the liquid has important significance for preventing risks.

In order to solve this problem, a great deal of research has been conducted, resulting in patents such as publication nos. CN102813984B, CN102813983B, CN103800963B, etc.

In the prior art, thereby adopt the body structure to drive the planar film and seal the liquid outlet and realize automatic end liquid mostly, but in actual conditions, because the influence of specific body structure and assembly process, local clearance probably appears in the planar film, influences final leakproofness, consequently, how strengthen the fixed of planar film, guarantee that its leakproofness is the problem that the safety drip chamber need overcome.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the existing plane membrane is easy to deform and shift in the assembling, sterilizing and using processes, and the liquid stopping effect of the dropping funnel is influenced.

The utility model provides a solve the above-mentioned problem double liquid-stopping self-exhaust safe drip chamber.

The utility model discloses a following technical scheme realizes:

the utility model provides a dual-stop liquid is from safe drip chamber of exhausting, includes casing and body, the casing upper end sets up the inlet, the bottom of casing sets up the liquid outlet, the body is located in the casing, the body include the body and with the lower body of floating of connection can be dismantled to the body, the bottom of body sets up the basement membrane down, the body includes grafting portion down, grafting portion includes plugboard and sets up perpendicularly the stand at plugboard middle part, the stand runs through along the axial and sets up the through-hole, the through-hole includes centre bore and side opening, the body of floating includes the center pin, the center pin peg graft in realize in the centre bore the connection of body and lower body.

The design principle of the utility model is that: the structure can prevent the problems that the pressure is generated in the process of inserting the central shaft into the through hole in the axial direction of the center shaft, the pressure expands the bottom film and the bottom film falls off seriously due to the reduction of the space of the sealed cavity in the inserting process of the through hole in the assembling process; on the other hand, in the process of negative pressure sterilization, the problem that the bottom film is deformed and falls off due to the fact that the pressure of the sealing cavity is larger than the negative pressure outside the floating body and the outward pressure is generated on the bottom film can be avoided. And this side opening is run through from sealed chamber to the top of stand, and the side opening is located go up the top below of body, with the top inboard of going up the body has certain clearance, is in the state of being sheltered from but not shutoff promptly, and when the infusion, the liquid medicine whereabouts drips go up the top of body, can not get into the side opening, in addition, when the infusion, the buoyancy that the liquid medicine produced makes the body float, and the side opening is located more than the liquid level all the time, can not have the liquid medicine to enter into sealed intracavity along the side opening.

The utility model discloses preferred dual end liquid is from exhaust safety dropping funnel, the body still includes annular base down, annular base's bottom sets up the flange of horizontal direction, the basement membrane is placed on the flange, the plugboard card is gone into annular base will the basement membrane is fastened up.

Furthermore, a convex ring is arranged at the bottom of the inserting plate, after the inserting plate is clamped into the annular base, the convex ring pushes the basement membrane against the flange to be tightly fixed to the basement membrane, and a cavity is formed among the convex ring, the basement membrane and the central shaft.

The utility model discloses preferred dual end liquid is from exhausting safe drip chamber, the side opening with the both sides of centre bore link up, like this in assembly process, peg graft the center pin in the through-hole in the time, atmospheric pressure produces at grafting portion at first, because side opening and through-hole intercommunication, the center pin inserts the atmospheric pressure that produces along the through-hole and can pass through the side opening immediately and discharge like this, prevents that sealed intracavity atmospheric pressure is high and make the basement membrane inflation warp aversion etc. in addition, side opening and through-hole intercommunication, when processing the trompil, pore-forming, simple process can once.

The utility model discloses preferably a dual end liquid is from exhaust safety dropping funnel, the size of side opening reduces until sealing gradually from the direction of central hole outside, and the structure that forms like this can exhaust well, and when the liquid medicine appeared on reacing the side opening, under the same circumstances of surface tension of water, effective spherical radius when most advanced structure makes the liquid medicine drop get into the side opening reduces, and the additional pressure that needs to overcome can increase for the liquid medicine is difficult to get into the side opening, plays waterproof carminative effect.

The utility model discloses preferably a dual liquid-stopping is from exhaust safety dropping funnel, the lower extreme of going up the body sets up to the arc structure of evagination, go up the body the inboard with set up the sealing ring between the stand, the diameter of sealing ring is greater than go up the bottom of body arrives distance between the stand outside, the sealing ring can fall down go up the body and with its clearance shutoff down between the body like this.

The utility model discloses preferably a dual end liquid is from exhausting safe drip chamber, be provided with thin recess on the lateral wall of stand, defeated soon at the liquid medicine, the liquid medicine in the drip chamber reduces gradually, is less than when the liquid medicine outside the flotation body during the liquid level in the flotation body chamber, the liquid medicine in the flotation body chamber can slowly flow down along thin recess, and the speed that the liquid medicine flows out in the flotation body chamber can be regulated and control through the size and the number of thin recess.

The design principle of the utility model is that: the floating body is arranged into an arc-shaped structure with the lower end protruding outwards, a sealing ring is arranged in the arc-shaped structure, when liquid medicine is in the dropping funnel, the floating body floats upwards under the action of buoyancy, when the liquid medicine floats to the position of the retaining ring, the retaining ring is limited by the retaining ring and cannot rise continuously, at the moment, the liquid medicine enters the floating body cavity to lift the sealing ring, a gap exists between the sealing ring and the inner side of the upper floating body and the outer side of the upright post of the lower floating body, the liquid medicine can continuously enter until the liquid level is the same as the liquid level outside the floating body, when the liquid medicine gradually decreases, the liquid medicine level outside the floating body gradually decreases, the floating body descends along with the descending of the liquid level, when the liquid level falls to the position that the buoyancy of the sealing ring is smaller than the sum of the gravity of the liquid medicine and the gravity of the upper floating body, the sealing ring rapidly descends to be in, the sealing ring locks the liquid medicine in the upper floating body cavity, because the gravity of whole body has been increased in the existence of liquid medicine, the body descends sooner, can let the basement membrane reach the liquid outlet before the liquid medicine flows to the greatest extent and seal it, the stria that sets up on the stand of lower body becomes the outflow passageway of the liquid medicine in the upper floating body cavity, and the liquid medicine can slowly flow down along the stria, even can further flow out the liquid medicine and alleviate the entering of air under the sealed incomplete condition of basement membrane.

And when subsequent needs continue the infusion, new liquid enters into the dropping funnel, when the liquid level reachd the sealing ring, when the gravity of sealing ring was greater than the buoyancy of liquid medicine, the sealing ring still was in relative sealed state, and liquid can not get into or can only get into a small amount, and at this moment, the internal air of floating body cavity is given first place to, and the buoyancy that the body received is bigger for open cavity structures, does benefit to the basement membrane and breaks away from the liquid outlet.

The utility model discloses preferably a dual end liquid is from exhaust safety dropping funnel, the stand be located with the top of the biggest department of inboard distance of going up the body sets up the separation blade, and the maximum height that can reach the sealing ring under liquid medicine buoyancy is spacing by the biggest department of size in the body chamber like this, does benefit to the liquid medicine and gets into.

The utility model discloses preferably a dual end liquid is from exhaust safety drip chamber, set up protruding muscle on annular base's the lateral wall, protruding muscle is 3 and interval distribution at least, protruding muscle with the inner wall of casing is little for the body can move about and can keep all the time along the casing up-and-down motion can not squint, guarantees that the basement membrane seals up liquid better.

The utility model discloses preferred dual end liquid is from exhausting safe drip chamber, the inboard of casing sets up the fender ring, the bottom of going up the body sets up the retaining ring, can prevent like this that the body from come-up to the inlet and block the dropping liquid.

Further, the basement membrane is silica gel.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up the side opening in the stand of body down for when assembling and when negative pressure sterilization exhaust, effectively prevented basement membrane bulging deformation scheduling problem that drops.

2. The utility model discloses a side opening and centre bore intercommunication and reduce until sealing gradually from the direction of centre bore outside to, can remain sufficient space exhaust like this, even have the liquid medicine to arrive in addition during the side opening department, also can make the liquid medicine drop will get into the additional pressure that the side opening need be overcome because of most advanced structure and big and increased the degree of difficulty that the liquid medicine got into, prevent better that the liquid medicine from getting into.

3. The utility model discloses the lower extreme that will go up the body sets up to the arc structure of evagination, and sets up the buffer memory that the sealing ring realized the liquid medicine in the come-up body chamber, has increased the gravity of body and has made the body can block up the liquid outlet earlier, and the liquid medicine that flows along thin recess simultaneously plays the effect of alleviating to preventing that air from getting into, in addition, when adding new liquid medicine again, the sealing ring can prevent the too early entering of liquid medicine the air of remaining more of a specified duration in the come-up body chamber does benefit to thereby the buoyancy of liquid medicine joining increase body makes the basement membrane break away from the re-infusion from.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic sectional structure diagram of a first embodiment of the present invention.

Fig. 2 is a schematic bottom view of an insertion portion according to a second embodiment of the present invention.

Fig. 3 is a schematic sectional structure diagram of a third embodiment of the present invention.

Fig. 4 is a schematic front view of a third embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

1-shell, 2-upper floating body, 20-central shaft, 3-lower floating body, 30-plugboard, 300-convex ring, 31-upright post, 310-central hole, 311-side hole, 32-annular base, 320-flange, 4-bottom film, 5-sealing ring, 6-baffle, 7-baffle ring, 8-retainer ring, 9-convex rib, 10-thin groove, 11-liquid inlet and 12-liquid outlet.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

The utility model provides a dual-stop self-exhaust safe dropping funnel, includes casing 1 and body, 1 upper end of casing sets up inlet 11, the bottom of casing 1 sets up liquid outlet 12, the body is located in the casing 1, the body include upper floating body 2 and with lower body 3 of connection can be dismantled to upper floating body 2, the bottom of lower body 3 sets up basement membrane 4, lower body 3 includes grafting portion, grafting portion includes plugboard 30 and sets up perpendicularly the stand 31 at plugboard 30 middle part, the stand 31 runs through along the axial and sets up the through-hole, the through-hole includes centre bore 310 and side opening 311, upper floating body 2 includes center pin 20, center pin 20 peg graft in realize upper floating body 2 and the connection of lower body 3 in the centre bore 310.

The central hole 310 is located along the central axis of the upright 31 so that the float is balanced throughout its movement.

The top of the upper floating body 2 is provided with an arc head, so that the splashing condition of the liquid medicine when the liquid medicine drips from the liquid inlet pipe 11 can be relieved.

The structure has the advantages that the through holes are axially formed in the upright posts 31 of the lower floating body 3, the central shaft 20 matched with the through holes is arranged on the upper floating body 2, the central shaft 20 is inserted into the central hole 310, connection between the upper floating body 2 and the lower floating body 3 is realized, the bottom membrane 4, the inserting plate 30 and the central shaft 20 form a sealed cavity, the side holes 311 are further axially formed in the upright posts 31, and the side holes 311 are communicated with the sealed cavity and the outer part of the floating body, so that on one hand, the problem that the bottom membrane 4 is expanded due to pressure caused by reduction of the space of the sealed cavity in the inserting process of the central shaft 20 into the through holes in the assembling process, and the bottom membrane 4 is seriously; on the other hand, in the process of negative pressure sterilization, the problem that the bottom film 4 is deformed and falls off due to the fact that the pressure of the sealing cavity is larger than the negative pressure outside the floating body and the outward pressure is generated can be avoided. And this side opening 311 runs through to the top of stand 31 from sealed chamber, and side opening 311 is located go up the top below of body 2, with the top inboard of going up body 2 has certain clearance, is in the state of being sheltered from but not shutoff promptly, and when the infusion, the liquid medicine whereabouts drips go up the top of body 2, can not get into side opening 311, in addition, during the infusion, the buoyancy that the liquid medicine produced makes the body float, and side opening 311 is located more than the liquid level all the time, can not have the liquid medicine to enter into sealed intracavity along side opening 311.

The lower floating body 3 further comprises an annular base 32, a flange 320 is arranged at the bottom of the annular base 32, the bottom film 4 is placed on the flange 320, and the plug board 30 is clamped into the annular base 32 to fasten the bottom film 4.

The bottom of the socket plate 30 is provided with a convex ring 300, after the socket plate 30 is clamped into the annular base 32, the convex ring 300 pushes the bottom film 4 against the flange 320 to tightly fix the bottom film 4, and a cavity is formed among the convex ring 300, the bottom film 4 and the central shaft 20.

The side hole 311 with the both sides of centre bore 310 link up, like this in the assembling process, with center pin 20 peg graft in during the through-hole, atmospheric pressure first is produced at the grafting portion, because side hole 311 and through-hole intercommunication, center pin 20 inserts the atmospheric pressure that produces along the through-hole and can discharge through side hole 311 immediately like this, prevents that the internal atmospheric pressure of sealed chamber is high and make basement membrane 4 inflation deformation shift etc. in addition, side hole 311 and through-hole intercommunication, when processing trompil, can once become the hole, simple process.

The basement membrane 4 is silica gel.

Example 2

The present embodiment is different from embodiment 1 in that the size of the side hole 311 gradually decreases from the central hole 310 to the outside until it is closed, and the structure formed in this way can exhaust air well, and when the liquid medicine arrives at the side hole 311, under the condition that the surface tension of water is the same, the tip structure reduces the effective spherical radius when the liquid medicine drops enter the side hole 311, and the additional pressure to be overcome increases, so that the liquid medicine is difficult to enter the side hole 311, and the water-proof and air-exhaust effects are achieved.

Example 3

The difference between this embodiment and embodiment 2 is that the lower end of the upper floating body 2 is arranged as a convex arc structure, a sealing ring 5 is arranged between the inner side of the upper floating body 2 and the upright column 31, the diameter of the sealing ring 5 is larger than the distance between the bottom of the upper floating body 2 and the outer side of the upright column 31, so that the sealing ring 5 can fall between the upper floating body 2 and the lower floating body 3 to seal the gap.

The side wall of the upright column 31 is provided with a thin groove 10, the liquid medicine in the dropping funnel is gradually reduced after the liquid medicine is quickly infused, when the liquid medicine outside the floating body is lower than the liquid level in the floating body cavity, the liquid medicine in the floating body cavity can slowly flow down along the thin groove 10, and the flowing speed of the liquid medicine in the floating body cavity can be regulated and controlled through the size and the number of the thin groove 10.

The upper floating body 2 is arranged into an arc-shaped structure with the lower end protruding outwards, the sealing ring 5 is arranged in the arc-shaped structure, when liquid medicine is in the dropping funnel, the floating body floats upwards under the action of buoyancy, when the liquid medicine floats to the position of the retaining ring 7, the retaining ring 8 is limited by the retaining ring 7 and cannot rise continuously, at the moment, the liquid medicine enters the floating body cavity to lift the sealing ring 5, a gap exists between the sealing ring 5 and the inner side of the upper floating body 2 and the outer side of the upright post 31 of the lower floating body 3, the liquid medicine can continuously enter until the liquid medicine is the same as the liquid level outside the floating body, when the liquid medicine gradually decreases, the liquid medicine level outside the floating body gradually descends, the floating body descends along with the descending of the liquid level, when the buoyancy force borne by the sealing ring 5 is smaller than the gravity of the sealing ring and the gravity of the liquid medicine at the upper part, the sealing ring 5 quickly descends, and when the sealing ring 5 descends to be in contact with the, the sealing ring 5 locks the liquid medicine in the upper floating body cavity, the gravity of the whole floating body is increased due to the existence of the liquid medicine, the floating body descends faster, the bottom film 4 reaches the liquid outlet 12 to seal the liquid medicine before the liquid medicine flows out, the thin groove formed in the upright post 31 of the lower floating body 3 becomes an outflow channel of the liquid medicine in the upper floating body cavity, the liquid medicine slowly flows downwards along the thin groove, and even if the liquid medicine can further flow out to relieve the air entering under the condition that the bottom film 4 is not sealed completely.

And when the subsequent infusion needs to be continued, new liquid enters the shell 1, when the liquid level reaches the sealing ring 5, the sealing ring 5 is still in a relatively sealed state because the gravity of the sealing ring 5 is greater than the buoyancy of the liquid medicine, the liquid cannot enter or only a small amount of liquid enters, at the moment, the air is mainly used in the cavity of the upper floating body 2, the buoyancy borne by the floating body is larger than that of the open cavity structure, and the bottom membrane 4 is favorably separated from the liquid outlet 12.

The vertical column 31 is provided with a baffle 6 above the position with the maximum distance from the inner side of the upper floating body 2, so that the maximum height which can be reached by the sealing ring 5 under the buoyancy action of the liquid medicine is limited at the position with the maximum size of the floating body cavity, and the liquid medicine is favorably entered.

Set up protruding muscle 9 on the lateral wall of annular base 32, protruding muscle 9 be 6 and evenly distributed in the outside of annular base 32, protruding muscle 9 with the inner wall clearance of casing 1 is little for the body can move about and can keep all the time along casing 1 up-and-down motion can not squint, guarantees that basement membrane 4 seals the end liquid better.

The inboard of casing 1 sets up retaining ring 7, the bottom of going up body 2 sets up retaining ring 8, can prevent like this that the body from floating up to inlet 11 and block the dropping liquid.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A double-liquid-stopping self-exhaust safe dropping funnel comprises a shell (1) and a floating body, wherein the upper end of the shell (1) is provided with a liquid inlet (11), a liquid outlet (12) is arranged at the bottom of the shell (1), the floating body is positioned in the shell (1), the floating body comprises an upper floating body (2) and a lower floating body (3) detachably connected with the upper floating body (2), the bottom of the lower floating body (3) is provided with a bottom film (4), it is characterized in that the lower floating body (3) comprises an inserting part, the inserting part comprises an inserting plate (30) and a vertical column (31) vertically arranged in the middle of the inserting plate (30), the upright post (31) is provided with a through hole in an axial direction in a penetrating way, the through hole comprises a central hole (310) and a side hole (311), the upper floating body (2) comprises a central shaft (20), and the central shaft (20) is inserted into the central hole (310).

2. A double liquid-stop self-venting safety drip chamber according to claim 1, wherein said lower float (3) further comprises an annular base (32), a flange (320) is provided at the bottom of said annular base (32), said base membrane (4) is placed on said flange (320), and said socket plate (30) is snapped into said annular base (32) to secure said base membrane (4).

3. A double liquid-stop self-venting safety drip chamber according to claim 1 or 2, wherein the side holes (311) are perforated on both sides of the central hole (310).

4. A double liquid-stop self-venting safety drip chamber according to claim 1 or 2, wherein the side holes (311) gradually decrease in size from the central hole (310) towards the outside until closed.

5. A double liquid-stopping self-venting safety drip chamber according to claim 1 or 2, characterized in that the lower end of the upper float (2) is arranged in a convex arc structure, a sealing ring (5) is arranged between the inner side of the upper float (2) and the upright post (31), and the diameter of the sealing ring (5) is larger than the distance between the bottom of the upper float (2) and the outer side of the upright post (31).

6. A double liquid-stopping self-venting safety drip chamber according to claim 5, characterized in that the side wall of the upright (31) is provided with a thin groove (10).

7. A double liquid-stop self-venting safety drip chamber according to claim 5, characterized in that a baffle (6) is arranged above the column (31) at the maximum distance from the inner side of the upper float (2).

8. A double-stop self-exhaust safe dropping funnel according to claim 2, wherein the outer side wall of the annular base (32) is provided with at least 3 ribs (9) which are distributed at intervals.

9. A double liquid-stop self-venting safety drip chamber according to any one of claims 1, 2 or 6-8, characterized in that a stop ring (7) is arranged on the inner side of the housing (1) and a stop ring (8) is arranged on the bottom of the upper floating body (2).