阅读说明：本技术 滴斗和输液装置 (Dropping funnel and infusion device ) 是由 王五星 于敬军 王博森 于 2019-11-28 设计创作，主要内容包括：本发明公开一种滴斗和输液装置。其中,滴斗包括滴斗主体,所述滴斗主体形成有过液通道,所述滴斗主体的一端形成有出液槽,所述出液槽的槽底壁设有出液口,所述出液槽具有与所述出液口相对设置的槽开口；和过滤件,所述过滤件包括设于所述过液通道内的安装主体和过滤膜,所述安装主体设有过滤口,所述过滤膜罩盖所述过滤口设置,所述过滤口正对所述出液口设置,且所述过滤口的面积大于等于所述槽开口,并覆盖所述槽开口设置。本发明技术方案能够过滤输液过程中的药液杂质,提升治疗效果。(The invention discloses a dropping funnel and an infusion device. The drip chamber comprises a drip chamber body, a liquid passing channel is formed in the drip chamber body, a liquid outlet groove is formed in one end of the drip chamber body, a liquid outlet is formed in the bottom wall of the liquid outlet groove, and the liquid outlet groove is provided with a groove opening opposite to the liquid outlet; and filter the piece, filter the piece including locating installation main part and filtration membrane in the liquid passageway, the installation main part is equipped with the filtration mouth, filtration membrane shroud the filtration mouth sets up, the filtration mouth is just right the liquid outlet sets up, just the area more than or equal to of filtration mouth the groove opening, and cover the groove opening sets up. According to the technical scheme, the liquid medicine impurities in the infusion process can be filtered, and the treatment effect is improved.)

1. A drip chamber, comprising:

the drip chamber comprises a drip chamber body, wherein a liquid passing channel is formed in the drip chamber body, a liquid outlet groove is formed in one end of the drip chamber body, a liquid outlet is formed in the bottom wall of the liquid outlet groove, and the liquid outlet groove is provided with a groove opening opposite to the liquid outlet; and

filter the piece, filter the piece including locating installation main part and filtration membrane in the liquid passageway, the installation main part is equipped with the filtration mouth, filtration membrane shroud the filtration mouth sets up, the filtration mouth is just right the liquid outlet sets up, just the area more than or equal to of filtration mouth the groove opening, and cover the groove opening sets up.

2. The drip chamber according to claim 1, wherein said mounting body is provided with a mounting groove, said filter opening is provided in a bottom wall of said mounting groove, and said filter member is provided in said mounting groove.

3. The drip chamber of claim 2, wherein the filter membrane comprises a membrane body and a flange arranged on the outer edge of the membrane body, the membrane body is arranged on the bottom wall of the mounting groove and covers the filter opening, and the flange abuts against the side wall of the mounting groove.

4. The drip chamber of claim 2, wherein an included angle α is formed between the side wall surface of the drain trough and the bottom surface of the drip chamber main body in the liquid passing channel, and the included angle α ranges from greater than 90 degrees to less than 180 degrees;

and/or an included angle β is formed between the groove bottom wall surface of the liquid outlet groove provided with the liquid outlet and the side wall surface, and the range value of the included angle β is more than 90 degrees and less than 180 degrees;

and/or the liquid outlet is positioned at the center of the bottom wall of the groove;

and/or the filter membrane is detachably connected in the mounting groove.

5. The dropping funnel according to claim 1, wherein the dropping funnel main body is further provided with an installation rib position on an inner wall surface of the liquid passing channel, an installation space is formed between the installation rib position and the installation groove, and the installation main body is arranged in the installation space.

6. The drip chamber of claim 5, wherein a guide slope is formed on a side of the mounting rib facing away from the mounting groove;

and/or the mounting bone positions are arranged in a ring shape;

and/or, the end part of the drip chamber main body, which is provided with the liquid outlet groove, is also provided with a reinforcing rib, and the reinforcing rib is positioned outside the liquid passing channel and surrounds the liquid outlet.

7. The dropping funnel according to any one of claims 1 to 6, further comprising a puncture outfit, wherein the puncture outfit comprises a mounting seat and a puncture main body arranged on the mounting seat, the puncture main body is communicated with the liquid passing channel, and the mounting seat is arranged at one end of the dropping funnel main body, which is far away from the liquid outlet groove.

8. The dropping funnel according to claim 7, wherein the mounting base comprises a main body plate, a mounting plate bent and arranged on the periphery of the main body plate, a connecting plate arranged on the surface of the mounting plate, and a side plate bent and connected to the connecting plate, the mounting plate, the connecting plate and the side plate enclose a slot, and the slot is inserted and fixed in the dropping funnel main body.

9. The dropping funnel according to claim 8, wherein the insertion slot comprises an insertion section and a fixing section connected with the insertion section, the insertion section is provided with an insertion port, the dropping funnel body is inserted from the insertion port, a distance value between the mounting plate and the side plate in the insertion section is defined as W1, and the distance value W1 is gradually reduced along a direction from the insertion port to the connecting plate; defining the distance value of the mounting plate and the side plate in the fixed section as W2, wherein the distance value W2 is a fixed value in the direction from the socket to the connecting plate;

and/or the connecting plate is provided with air holes communicated with the slots;

and/or the drip chamber further comprises a protective cap, wherein the inner wall surface of the protective cap is provided with a mounting bulge, the protective cap is sleeved outside the puncture main body, and the mounting bulge is abutted against the puncture main body so as to enable the protective cap to be tightly matched with the puncture main body;

and/or the dropping funnel main body is also provided with a positioning bone position on the inner wall surface of the liquid passing channel, and the positioning bone position is abutted and limited with the mounting seat.

10. An infusion device comprising a drip chamber as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a dropping funnel and an infusion device.

Background

The dropping funnel is an important component of the infusion device, medical staff can clearly observe the speed of conveying the liquid medicine through the dropping funnel, and can add some special medicines into an infusion pipeline through the dropping funnel in the infusion process, so that the time of adding the medicines is conveniently controlled. However, impurities may exist in the liquid medicine bottle of the existing infusion device and are transferred into the human body through the dropping funnel, so that the treatment effect is affected.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention mainly aims to provide a dropping funnel, aiming at filtering liquid medicine impurities in the infusion process and improving the treatment effect.

In order to achieve the above object, the present invention provides a dropping funnel, comprising:

the drip chamber comprises a drip chamber body, wherein a liquid passing channel is formed in the drip chamber body, a liquid outlet groove is formed in one end of the drip chamber body, a liquid outlet is formed in the bottom wall of the liquid outlet groove, and the liquid outlet groove is provided with a groove opening opposite to the liquid outlet; and

filter the piece, filter the piece including locating installation main part and filtration membrane in the liquid passageway, the installation main part is equipped with the filtration mouth, filtration membrane shroud the filtration mouth sets up, the filtration mouth is just right the liquid outlet sets up, just the area more than or equal to of filtration mouth the groove opening, and cover the groove opening sets up.

In an embodiment of the application, the installation main part is provided with a mounting groove, the filter opening is arranged on the bottom wall of the mounting groove, and the filter piece is arranged in the mounting groove.

In an embodiment of the application, filtration membrane includes the membrane body and locates the turn-ups of membrane body outer fringe, the membrane body is located the diapire of mounting groove to cover the filtration mouth, the turn-ups with the groove side wall butt of mounting groove.

In an embodiment of the present application, an included angle α is formed between a side wall surface of the liquid outlet groove and a bottom surface of the drip chamber main body located in the liquid passing channel, and a range value of the included angle α is greater than 90 degrees and less than 180 degrees;

and/or an included angle β is formed between the groove bottom wall surface of the liquid outlet groove provided with the liquid outlet and the side wall surface, and the range value of the included angle β is more than 90 degrees and less than 180 degrees;

and/or the liquid outlet is positioned at the center of the bottom wall of the groove;

and/or the filter membrane is detachably connected in the mounting groove.

In an embodiment of the application, the dropping funnel main body is further provided with an installation bone position on an inner wall surface of the liquid passing channel, an installation space is formed between the installation bone position and the installation groove, and the installation main body is arranged in the installation space.

In an embodiment of the present application, a guiding inclined plane is formed on a side of the mounting rib position departing from the mounting groove;

and/or the mounting bone positions are arranged in a ring shape;

and/or, the end part of the drip chamber main body, which is provided with the liquid outlet groove, is also provided with a reinforcing rib, and the reinforcing rib is positioned outside the liquid passing channel and surrounds the liquid outlet.

In an embodiment of this application, the drip chamber still includes the puncture ware, the puncture ware includes the mount pad and locates the puncture main part of mount pad, the puncture main part with cross liquid channel intercommunication, the mount pad install in locate the drip chamber main part deviates from the one end of drain tank.

In an embodiment of the application, the mounting base includes the main part board, bend and locate the mounting panel of main part board periphery, locate the connecting plate on the surface of mounting panel and bend and connect in the curb plate of connecting plate, mounting panel, connecting plate and the curb plate encloses and closes and form the slot, the slot is pegged graft and is fixed in the drip chamber main part.

In an embodiment of the application, the insertion slot includes an insertion section and a fixed section connected to the insertion section, the insertion section is provided with an insertion port, the drip chamber body is inserted from the insertion port, a distance value between the mounting plate and the side plate in the insertion section is defined as W1, and the distance value W1 is gradually reduced along a direction from the insertion port to the connecting plate; defining the distance value of the mounting plate and the side plate in the fixed section as W2, wherein the distance value W2 is a fixed value in the direction from the socket to the connecting plate;

and/or the connecting plate is provided with air holes communicated with the slots;

and/or the drip chamber further comprises a protective cap, wherein the inner wall surface of the protective cap is provided with a mounting bulge, the protective cap is sleeved outside the puncture main body, and the mounting bulge is abutted against the puncture main body so as to enable the protective cap to be tightly matched with the puncture main body;

and/or the dropping funnel main body is also provided with a positioning bone position on the inner wall surface of the liquid passing channel, and the positioning bone position is abutted and limited with the mounting seat.

The invention also provides an infusion device, comprising a drip chamber, wherein the drip chamber comprises:

the drip chamber comprises a drip chamber body, wherein a liquid passing channel is formed in the drip chamber body, a liquid outlet groove is formed in one end of the drip chamber body, a liquid outlet is formed in the bottom wall of the liquid outlet groove, and the liquid outlet groove is provided with a groove opening opposite to the liquid outlet; and

filter the piece, filter the piece including locating installation main part and filtration membrane in the liquid passageway, the installation main part is equipped with the filtration mouth, filtration membrane shroud the filtration mouth sets up, the filtration mouth is just right the liquid outlet sets up, just the area more than or equal to of filtration mouth the groove opening, and cover the groove opening sets up.

According to the technical scheme, the filtering piece is arranged in the liquid passing channel in the dropping funnel main body, and the liquid medicine passing through the liquid passing channel is filtered through the filtering piece, so that liquid medicine impurities in the infusion process are filtered, and the treatment effect is improved. Further, when setting up and filtering the piece, through will filtering a piece and set up to installation main part and filtration membrane, when the installation, install through the installation main part for it is more stable with the installation of being connected of drip chamber main part to filter a piece. The direct contact installation of the filter membrane and the dropping funnel main body is avoided, and the stability of the assembly of parts is improved. When the liquid flows, the liquid is filtered by the filter membrane in the liquid passing channel and then flows into the liquid outlet groove through the groove opening. Form out the liquid groove in the one end of drip chamber main part and make the liquid medicine after filtering through the filter smoothly flow out through the liquid outlet of going out the liquid groove. Simultaneously with the area more than or equal to groove opening of filtration mouth, also make filtration membrane can all shroud groove openings, can be so that filtration membrane's most regional area can by make full use of, simultaneously, also prevent to go out the inslot and produce the hydrops, promote the availability factor who filters piece and whole drip chamber.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an overall cross-sectional view of one embodiment of a drip chamber of the present invention;

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

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is a cross-sectional view of one embodiment of a drip chamber body of the present invention;

fig. 5 is a cross-sectional view of one embodiment of the filter element of the present invention;

fig. 6 is a sectional view of an embodiment of the puncture instrument and the protective cap of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides a drip chamber 100.

Referring to fig. 1 to 3, in an embodiment of the present invention, the drip chamber 100 includes:

the drip chamber comprises a drip chamber body 10, wherein a liquid passing channel 10a is formed in the drip chamber body 10, a liquid outlet groove 11 is formed in one end of the drip chamber body 10, a liquid outlet 111 is formed in the bottom wall 117 of the liquid outlet groove 11, and the liquid outlet groove 11 is provided with a groove opening 113 opposite to the liquid outlet 111; and

filter element 30, filter element 30 is including locating installation main part 31 and filtration membrane 33 in liquid passageway 10a, installation main part 31 is equipped with filtration mouth 311a, filtration membrane 33 shroud filtration mouth 311a sets up, filtration mouth 311a is just right liquid outlet 111 sets up, just the area more than or equal to of filtration mouth 311a groove opening 113, and cover groove opening 113 sets up.

The porosity of the filtering membrane 33 of the present application may be 40 to 50%, the pore diameter is 5 to 10 μm, and the thickness is 100 to 200 μm. Specifically, the material of the filtering membrane 33 of the present application can be an Ag-Au solid solution, a Ti-Zr solid solution, etc., the filtering membrane 33 formed under the above conditions has a large filtering flux and a high filtering precision, and can filter out particles with small particles, thereby achieving the effect of filtering out impurities in the medicine bottle to ensure the accuracy in detecting the pressure, and meanwhile, the filtering membrane 33 under the conditions has a high use strength, and can still maintain a good filtering effect even after being repeatedly cleaned. The high temperature can be utilized for sterilization during use, and the use safety is improved more conveniently and rapidly.

The filter membrane 33 may be provided with a plurality of layers, and the plurality of filter membranes 33 are stacked. It can be understood that the plurality of filter membranes 33 are stacked to further improve the filtering effect, wherein adjacent filter membranes 33 can be spaced apart to form a filtering space to enhance the filtering effect; and the two can also be directly attached to each other, so that the installation is convenient.

The dropping funnel main body 10 can be made of transparent materials, and the transparent main body can be further provided with scale values so that a user can observe liquid medicine in the dropping funnel main body 10 conveniently. The drip chamber body 10 is substantially in the form of a long cylinder, and has an opening formed at the upper end thereof for connection with the puncture instrument 50, and a filter member 30 is mounted at the lower end thereof. The liquid outlet groove 11 can also be arranged at the lower end of the dropping funnel main body 10.

According to the technical scheme, the filtering piece 30 is arranged on the liquid passing channel 10a in the dropping funnel main body 10, and liquid medicine passing through the liquid passing channel 10a is filtered through the filtering piece 30, so that liquid medicine impurities in the infusion process are filtered, and the treatment effect is improved. Further, when the filter member 30 is provided, by providing the filter member 30 as the mounting body 31 and the filter membrane 33, the filter member 30 is mounted by the mounting body 31 at the time of mounting, so that the attachment mounting of the filter member 30 to the drip chamber body 10 is more stable. The direct contact installation of the filter membrane 33 and the dropping funnel main body 10 is avoided, and the stability of the assembly of parts is improved. When the liquid flows, the liquid is filtered by the filter membrane 33 in the liquid passage 10a and then flows into the liquid outlet tank 11 through the tank opening 113. A liquid outlet groove 11 is formed at one end of the dropping funnel main body 10, so that the liquid medicine filtered by the filter member 30 can smoothly flow out through a liquid outlet 111 of the liquid outlet groove 11. Simultaneously with the area more than or equal to groove opening 113 of filtration mouth 311a, also make filtration membrane 33 can all shroud groove opening 113, can make most regional area of filtration membrane 33 by make full use of, simultaneously, also prevent to produce the hydrops in the play liquid groove 11, promote the availability factor who filters piece 30 and whole drip chamber 100.

Referring to fig. 2 and 5 in combination, in an embodiment of the present application, the mounting body 31 is provided with a mounting groove 311, the filter opening 311a is provided at a bottom wall of the mounting groove 311, and the filter 30 is provided in the mounting groove 311. The installation of the filter membrane 33 is more convenient and stable by the installation of the installation groove 311.

The filtering membrane 33 is detachably connected in the mounting groove 311, and the filtering member 30 is integrally and simply assembled through the detachably connected filtering membrane 33. Of course, the filter membrane 33 and the mounting body 31 may also be of unitary construction.

Further, the filter membrane 33 includes a membrane body 331 and a flange 333 disposed at an outer edge of the membrane body 331, the membrane body 331 is disposed at a bottom wall of the mounting groove 311 and covers the filter opening 311a, and the flange 333 abuts against a groove side wall of the mounting groove 311.

The filtering membrane 33 arranged on the flanging 333 is abutted against the groove side wall of the mounting groove 311 through the flanging 333 during mounting, and can be bonded or clamped. The provision of the burring 333 enables the diaphragm body 331 to be more stably mounted in the mounting groove 311. The membrane body 331 can also be bonded with the bottom wall of the mounting groove 311 without the filtering port 311a, and the installation of the filtering membrane 33 is more stable through the double fixation of the flanging 333 and the membrane body 331.

Referring to fig. 2 and 4, in an embodiment of the present application, an included angle α is formed between the side wall surface 115 of the liquid outlet groove 11 and the bottom surface 10b of the drip chamber main body 10 located in the liquid passing channel 10a, and the included angle α ranges from greater than 90 degrees to less than 180 degrees.

The bottom surface 10b in the liquid passing passage 10a is a lowermost surface in the drip chamber body 10 in the figure. The upper side of the sidewall 115 of the spout 11 is surrounded by a spout opening 113. The side wall surface 115 of the liquid outlet groove 11 and the bottom surface 10b in the liquid passing channel 10a are arranged in an obtuse angle, so that the liquid has a guiding function when flowing down, and liquid accumulation is prevented.

And/or, the liquid outlet groove 11 is provided with the groove bottom wall surface 117 of the liquid outlet hole 111 and the side wall surface 115, an included angle β is formed between the groove bottom wall surface and the side wall surface, and the range value of the included angle β is greater than 90 degrees and less than 180 degrees.

The groove bottom wall surface 117 of the liquid outlet groove 11 and the side wall surface 115 of the liquid outlet groove 11 are also arranged to form an obtuse angle, that is, the liquid is accelerated for the first time when flowing on the side wall surface 115, and then is accelerated for the second time on the groove bottom wall surface 117, so that the liquid accumulation is further prevented.

And/or the liquid outlet 111 is arranged at the center of the bottom wall of the groove.

The liquid outlet 111 is located the center setting of groove diapire, combines foretell scheme, also is for going out the liquid convenience, prevents the design of hydrops, and the combination of three can realize better effect.

With further reference to fig. 2 and 4, in an embodiment of the present application, the drip chamber body 10 is further provided with an installation rib 13 on an inner wall surface of the liquid passing channel 10a, an installation space 131 is formed between the installation rib 13 and the installation groove 311, and the installation body 31 is disposed in the installation space 131.

The installation bone 13 is arranged so that the filter member 30 can be well installed with the drip chamber body 10. The mounting bone 13 serves as a limit. The mounting rib 13 and the bottom surface 10b of the dropping funnel main body 10 in the liquid passing channel 10a form a limiting combination for clamping the filtering piece 30, and the filtering piece 30 can be mounted in the liquid passing channel 10a in a physical connection mode. Installation position of bone 13 can with filter 30 butt, also can leave a bit clearance between the two, realize clearance fit to it is all comparatively convenient to make to take out and filter 30 and install and filter 30.

Further, a guiding inclined plane 133 is formed on one side of the mounting bone 13 away from the mounting groove 311.

When the filter 30 is mounted, the guide slope 133 guides the filter to slide into the mounting space 131. Thereby making installation of the filter member 30 more convenient.

And/or the mounting bone positions 13 are arranged annularly;

that is, installation bone position 13 encircles the setting of drip chamber main part 10 for installation bone position 13 can all-round butt spacing with filtering piece 30, makes the assembly between installation bone position 13 and the filtering piece 30 more stable.

And/or, the end part of the drip chamber body 10 provided with the liquid outlet groove 11 is also provided with a reinforcing rib 17, and the reinforcing rib 17 is positioned outside the liquid passing channel 10a and surrounds the liquid outlet 111.

The reinforcing rib 17 is provided at the end of the drip chamber body 10, so that the structure of the end can be reinforced to prevent the liquid from being discharged smoothly due to deformation during use.

With reference to fig. 1, 3 and 6, in an embodiment of the present application, the drip chamber 100 further includes a puncture device 50, the puncture device 50 includes a mounting seat 51 and a puncture main body 53 disposed on the mounting seat 51, the puncture main body 53 is communicated with the liquid passing channel 10a, and the mounting seat 51 is mounted on an end of the drip chamber main body 10 away from the liquid outlet groove 11.

The puncture outfit 50 is provided to facilitate the connection of the drip chamber body 10 with an infusion bottle or other infusion containers. The puncture outfit 50 comprises a mounting seat 51 and a puncture main body 53, and the mounting through the mounting seat 51 can facilitate the connection and assembly between the whole puncture outfit 50 and the drip chamber main body 10. The mounting seat 51 and the puncture body 53 may be formed integrally or separately.

Furthermore, the mounting seat 51 includes a main body plate 511, a mounting plate 513 bent and disposed on the periphery of the main body plate 511, a connecting plate 515 disposed on the surface of the mounting plate 513, and a side plate 517 bent and connected to the connecting plate 515, the mounting plate 513, the connecting plate 515, and the side plate 517 enclose a slot 52, and the slot 52 is inserted and fixed to the drip chamber main body 10. That is, the mount base 51 is mounted to the drip chamber body 10 by means of a plug-fit. The insertion fit can be used for simply and conveniently installing the installation seat 51 on the drip chamber main body 10.

In an embodiment of the present application, the insertion slot 52 includes an insertion section 521 and a fixing section 523 connected to the insertion section 521, the insertion section 521 is provided with an insertion port 52a, the drip chamber body 10 is inserted from the insertion port 52a, a distance value W1 between the mounting plate 513 and the side plate 517 in the insertion section 521 is defined, and the distance value W1 is gradually decreased in a direction from the insertion port 52a to the connection plate 515; the distance value of the mounting plate 513 and the side plate 517 in the fixed segment 523 is defined as W2, and the distance value W2 is a fixed value in the direction from the socket 52a to the connection plate 515.

When assembled, the upper end of the drip chamber body 10 is inserted from the insertion port 52 a. The space of the insertion section 521 is gradually reduced, so that the distance value W1 at the insertion port 52a is the maximum value, and thus, the insertion installation of the drip chamber body 10 can be conveniently guided. Meanwhile, the distance value W2 at the fixed segment 523 is set to be a fixed value, so that the distance between the side plate 517 and the mounting plate 513 at that position is constant, and the drip chamber body 10 can be firmly fixed when being plugged at that position. In order to further enhance the stability of the connection, glue may be further disposed in the slot 52, so that the connection between the puncture device 50 and the drip chamber body 10 is more stable by means of plugging and gluing.

And/or, the connection plate 515 is provided with a vent hole (not shown) communicated with the slot 52.

Through the setting of bleeder vent for in the process of mount pad 51 assembly, do not remain the air with between the dropping funnel main part 10, realize the tight fit of the two. In the gluing process, air bubbles do not exist in the glue, and the stability of the connection between the puncture outfit 50 and the dropping funnel main body 10 is further improved.

And/or, the drip chamber 100 further comprises a protective cap 70, wherein an installation bulge 71 is arranged on the inner wall surface of the protective cap 70, the protective cap 70 is sleeved outside the puncture main body 53, and the installation bulge 71 is abutted against the puncture main body 53, so that the protective cap 70 is tightly matched with the puncture main body 53.

The provision of the protective cap 70 may protect the puncture body 53 from damage when not in use. Meanwhile, when the protective cap 70 is provided, the protective cap 70 is abutted against the mounting boss 71, so that a tight fit effect can be achieved, and the protective cap 70 is prevented from being accidentally detached from the puncture body 53.

And/or a positioning bone position 15 is further arranged on the inner wall surface of the liquid passing channel 10a of the dropping funnel main body 10, and the positioning bone position 15 is abutted and limited with the mounting seat 51.

The lower extreme of the upside butt mount pad 51 of location position 15 for mount pad 51 has the spacing effect in the in-process of installation in location, makes the installation of mount pad 51 not only lean on the upper end butt of connecting plate 515 with drip chamber main part 10, and then makes the installation of mount pad 51 more accurate.

Further, the first surface 135 of the mounting rib 13 facing away from the drip chamber body 10 and the second surface 151 of the positioning rib 15 facing away from the drip chamber body 10 are located on the same plane.

The first surface 135 and the second surface 151 are located on the same surface, i.e., the height of the protrusion of the mounting bone site 13 and the positioning bone site 15 in the drip chamber body 10 is the same. This is convenient for processing the drip chamber body 10. Meanwhile, the first surface 135 and the second surface 151 are located on the same surface, so that the drawing of the drip chamber body 10 is facilitated.

The present invention further provides an infusion device, which includes a dropping funnel 100, and the specific structure of the dropping funnel 100 refers to the above embodiments, and since the infusion device adopts all the technical solutions of all the above embodiments, the infusion device at least has all the beneficial effects brought by the technical solutions of the above embodiments, and no further description is given here.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.