CN214485219U - Infusion device and infusion apparatus - Google Patents

Abstract

The utility model provides an infusion device, which comprises a body with a cavity inside; one end of the body is used for being communicated with a liquid outlet of the drip tube, and the other end of the body is provided with a communicating hole used for communicating the cavity of the drip tube with the cavity of the body; the floating ball is arranged in the body, and the density of the floating ball is less than that of the liquid in the cavity of the body; when liquid in the cavity of the body gradually runs off, the floating ball gradually moves towards the liquid outlet of the drip tube until the floating ball seals the liquid outlet. The floating ball with the density smaller than that of the liquid is arranged in the cavity of the body, so that the floating ball is driven to gradually move towards the liquid outlet of the drip tube along with the descending of the water level line by the descending of the water level line of the liquid, and when the water level line is lower than the opening end of the liquid outlet of the drip tube, the floating ball closes the liquid outlet of the drip tube; and the body is communicated with the liquid outlet of the drip tube, so that when the liquid outlet of the drip tube is closed by the floating ball, the liquid reflux or blood reflux is reduced.

Description

Infusion device and infusion apparatus

Technical Field

The utility model belongs to the technical field of medical instrument, more specifically say, relate to an infusion set and transfusion system.

Background

At present, a gravity infusion apparatus for infusing a patient comprises a transfusion bottle 1 ', a communicating tube 2', a drip tube 4 ', a locking device 5', a filtering device 6 'and a needle 7' which are connected in sequence as shown in figure 1; the drip tube 4 'is communicated with a pressure regulating tube 3'; the gravity infusion apparatus needs to be watched by people no matter how long the time is for each infusion, so that air is prevented from entering a human body along the infusion apparatus, or blood return phenomenon is prevented after liquid infusion is finished, and if the liquid infusion is finished and a needle is not pulled out in time, a patient can have life danger. The gravity infusion set can control the flow and speed through the locking device 5', but cannot automatically stop infusion, so that a patient can be consciously seen or cared, otherwise, the patient is dangerous.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an infusion device to solve the technical problem who exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an infusion device comprising: a body having a cavity therein; one end of the body is used for being communicated with a liquid outlet of the drip tube, and the other end of the body is provided with a communicating hole used for communicating a cavity of the drip tube with a cavity of the body; the floating ball is assembled in the body, and the density of the floating ball is less than that of the liquid in the cavity of the body; when the liquid in the cavity of the body gradually runs off, the floating ball gradually moves towards the liquid outlet of the drip tube until the floating ball seals the liquid outlet.

Furthermore, a flexible substrate in interference fit with the floating ball is hermetically assembled at one end of the body, which is close to the liquid outlet of the drip tube; one side of the flexible substrate facing the floating ball is matched with the outer wall of the floating ball; the flexible substrate is provided with a through hole which penetrates through the flexible substrate along the thickness direction of the flexible substrate, and the through hole is communicated with the liquid outlet of the drip tube; when the liquid in the cavity of the body gradually runs off, the floating ball gradually moves towards the through hole until the floating ball seals the through hole.

Furthermore, a plurality of first reinforcing pieces are annularly arranged on one side of the flexible base body, which is far away from the floating ball; one end of the first reinforcing piece is flush with the inner wall of the through hole, and the other end of the first reinforcing piece abuts against the inner wall of the cavity of the body.

Furthermore, a filtering piece for filtering the liquid is arranged between one end of the body, which is close to the liquid outlet of the drip tube, and the flexible base body.

Further, the body comprises a first shell and a second shell assembled with the first shell in a clamping mode; the communication hole is positioned on the first shell; the filter element is assembled on the second shell; the second shell is provided with an inserting barrel which is used for being inserted into a liquid outlet of the drip tube.

Further, a plurality of second reinforcing pieces are annularly arranged on the inner wall of the second shell facing the first shell; the end part of one end of the second reinforcing part is flush with the inner wall of the inserting cylinder, and the other end of the second reinforcing part is connected to the inner wall of the second shell; the end of the plurality of second reinforcing members attached to one end of the inner wall of the second housing forms an end face that supports the filter member.

Furthermore, a first clamping part is arranged on the first shell; the second shell is provided with a second clamping part which is clamped and assembled with the first clamping part; the first clamping part is provided with a first clamping groove for adapting the second clamping part; and a second clamping groove used for adapting the first clamping part is arranged on the second clamping part.

Furthermore, a clamping part clamped in the second clamping groove is arranged on one side, away from the floating ball, of the flexible base body; the end face of the first clamping portion abuts against the clamping portion, and one side, far away from the first clamping portion, of the clamping portion abuts against the groove wall of the second clamping groove.

Further, both ends of the body are arranged in a spherical manner.

The infusion apparatus comprises a drip tube, a needle and a communicating pipe for communicating the drip tube and the needle with a transfusion bottle, wherein the infusion apparatus is inserted into a liquid outlet of the drip tube; the infusion device is communicated with the inner cavity of the drip tube through a communication hole.

The utility model provides an infusion set's beneficial effect lies in: compared with the prior art, the utility model discloses infusion set sets up the floater that density is less than liquid in the cavity of body to make the water level line through liquid reduce and drive the floater to move to the liquid outlet of drip tube gradually along with this water level line descends, when the water level line is less than the open end of the liquid outlet of drip tube, the floater closes the liquid outlet of drip tube; and the body is communicated with the liquid outlet of the drip tube, so that when the liquid outlet of the drip tube is closed by the floating ball, the liquid reflux or blood reflux is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic structural diagram of an infusion set and a transfusion bottle in the prior art;

FIG. 2 is a first schematic view of an assembly structure of an infusion device and a drip tube according to an embodiment of the present invention;

FIG. 3 is a schematic view of a second assembly structure of the infusion device and the dropper according to the embodiment of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

fig. 5 is a schematic structural view of a first reinforcing member of an infusion device according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an infusion apparatus provided by the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1', hanging a bottle; 2', communicating pipe; 3', a pressure regulating pipe; 4' dropping a dropper; 5', a locking device; 6', a filtering device; 7', a needle head;

1. hanging a bottle; 2. a communicating pipe; 3. a locking device; 4. a needle head;

100. a body; 101. a first housing; 1011. a first clamping part; 10111. a first clamping groove; 102. a second housing; 1021. inserting a cylinder; 1022. a second clamping part; 10221. a second clamping groove;

200. dropping a dropper; 201. a liquid outlet;

300. a communicating hole;

400. a floating ball;

500. a flexible substrate; 501. a through hole; 502. a clamping part;

600. a first reinforcement; 700. a filter member; 800. a second reinforcement.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 2 to 5 together, the infusion device of the present invention will now be described. The infusion device comprises a body 100 with a cavity inside; one end of the body 100 is used for being communicated with a liquid outlet 201 of the drip tube 200, and the other end is provided with a communicating hole 300 for communicating the cavity of the drip tube 200 with the cavity of the body 100; a floating ball 400 is assembled in the body 100, and the density of the floating ball 400 is less than that of the liquid in the cavity of the body 100; when the liquid in the cavity of the body 100 gradually runs off, the floating ball 400 gradually moves toward the liquid outlet 201 of the drip tube 200 until the floating ball 400 closes the liquid outlet 201.

Compared with the prior art, the transfusion device provided by the utility model is provided with the floating ball 400 with density smaller than that of liquid in the cavity of the body 100, so that the water level line of the liquid is reduced to drive the floating ball 400 to gradually move towards the liquid outlet 201 of the drip tube 200 along with the descending of the water level line, and when the water level line is lower than the open end of the liquid outlet 201 of the drip tube 200, the floating ball 400 closes the liquid outlet 201 of the drip tube 200; and the body 100 is communicated with the liquid outlet 201 of the drip tube 200, so that when the floating ball 400 closes the liquid outlet 201 of the drip tube 200, the liquid backflow or blood backflow is reduced.

Further, referring to fig. 2 and fig. 3 together, as a specific embodiment of the infusion apparatus provided by the present invention, an end of the body 100 close to the liquid outlet 201 of the dropper 200 is hermetically assembled with a flexible substrate 500 in interference fit with the floating ball 400; one side of the flexible substrate 500 facing the floating ball 400 is matched with the outer wall of the floating ball 400; a through hole 501 penetrating through the flexible substrate 500 along the thickness direction of the flexible substrate 500 is formed in the flexible substrate 500, and the through hole 501 is communicated with the liquid outlet 201 of the drip tube 200; when the liquid in the cavity of the body 100 gradually runs off, the floating ball 400 gradually moves toward the through hole 501 until the floating ball 400 closes the through hole 501.

The flexible substrate 500 is hermetically assembled in the body 100, so that a seal is formed between the flexible substrate 500 and the body 100, and the flexible substrate 500 is provided with a through hole 501 communicated with the liquid outlet 201, so that the sealing performance that the floating ball 400 gradually moves towards the through hole 501 along with the lowering of a water level line until the floating ball 400 closes the through hole 501 is improved, the liquid flows to the liquid outlet 201 of the drip tube 200 from a gap except the through hole 501 is reduced, and the liquid backflow or blood backflow is further reduced; through the outer wall of the floating ball 400 being matched with the flexible base body 500 and the interference fit between the flexible base body 500 and the floating ball 400, when the water level line of the liquid is lower than the opening of the through hole 501, the through hole 501 can be better sealed by the floating ball 400, and the occurrence of liquid backflow or blood backflow is further reduced.

Specifically, the flexible substrate 500 includes a concave spherical polygon adapted to the floating ball 400, and a clamping portion 502 disposed at the bottom of the concave spherical polygon; the through hole 501 is positioned at the axis position of the concave spherical polygon, so that the floating ball 400 can rapidly close the through hole 501;

specifically, the concave spherical polygon in the present embodiment is a rectangle, and a spherical surface is recessed on one side of the rectangle; and the through hole 501 is located at the axial position of the lowest position of the spherical surface.

In another embodiment, magnetic powder layers are disposed inside the flexible substrate 500 and inside the floating ball 400, so as to improve the force of the floating ball 400 being adsorbed on the flexible substrate 500, and effectively improve the performance of the floating ball 400 for sealing the through hole 501.

Further, referring to fig. 2, fig. 3 and fig. 5, as an embodiment of the infusion device of the present invention, a plurality of first reinforcements 600 are annularly disposed on one side of the flexible substrate 500 away from the floating ball 400; one end of the first reinforcing member 600 is flush with the inner wall of the through hole 501, and the other end abuts against the inner wall of the cavity of the body 100.

A plurality of first reinforcing members 600 are annularly arranged on one side of the flexible substrate 500 away from the floating ball 400 to improve the supporting force of the flexible substrate 500 for bearing the floating ball 400, so that the situation that the flexible substrate 500 is deformed with the inner cavity wall of the body 100 due to the fact that the flexible substrate 500 is extruded by the gravity of the floating ball 400 when the liquid water level line is lower than the through hole 501 is reduced; one end of the first stiffener 600 extends to be flush with the inner wall of the through hole 501, and the other end of the first stiffener 600 abuts against the inner wall of the cavity of the body 100, so that the axial supporting force of the flexible substrate 500 can be better improved by the first stiffener 600.

Specifically, the cross section of the first reinforcement member 600 is a right triangle, the right-angle side of the right triangle is flush with the inner wall of the through hole 501, and the first reinforcement member 600 arranged in the right triangle has stronger support.

Further, referring to fig. 3, as a specific embodiment of the infusion device of the present invention, a filter 700 for filtering the liquid is disposed between one end of the body 100 close to the liquid outlet 201 of the dropper 200 and the flexible base 500.

The filter 700 is disposed between the flexible base 500 and an end of the body 100 close to the liquid outlet 201 of the drip tube 200, so that the liquid flowing from the through hole 501 to the drip tube 200 flows out through the filter 700 to filter the liquid through the filter 700, so that the liquid flowing to the liquid outlet 201 of the drip tube 200 has fewer impurities.

Specifically, the filter member 700 has a circular shape, and the outer diameter of the filter member 700 is the same as the inner diameter of the cavity of the body 100.

Further, referring to fig. 3 and fig. 4 together, as an embodiment of the infusion device provided by the present invention, the body 100 includes a first housing 101 and a second housing 102 assembled with the first housing 101 in a snap-fit manner; the communication hole 300 is located on the first housing 101; the filter member 700 is fitted to the second housing 102; the second shell 102 is provided with an insertion tube 1021 for being inserted into the liquid outlet 201 of the drip tube 200.

The body 100 comprises a first shell 101 and a second shell 102, and the first shell 101 and the second shell 102 are assembled and fixed in a clamping manner, so that the body 100 is simple in assembly, simple in structure and low in cost; the liquid inlet hole is positioned on the first shell 101, so that liquid in the cavity of the drip tube 200 can enter the body 100 through the communication hole 300 on the first shell 101, then flow to the filter 700 through the through hole 501, and then flow to the liquid outlet 201 of the drip tube 200 through the insert 1021; the filter 700 is disposed on the second housing 102, so that the filter 700 is more conveniently and rapidly assembled; the purpose of the barrel 1021 is to facilitate communication of the infusion set with the outlet 201 of the drip tube 200.

Specifically, the first shell 101 and the second shell 102 are made of hard materials, so that the first shell 101 and the second shell 102 are difficult to deform, and the situation that the floating ball 400 is difficult to move to the through hole 501 due to the deformation of the first shell 101 or the second shell 102 is effectively reduced.

Further, referring to fig. 3, as a specific embodiment of the infusion device provided by the present invention, a plurality of second reinforcements 800 are annularly arranged on the inner wall of the second housing 102 facing the first housing 101; the end of one end of the second reinforcing member 800 is flush with the inner wall of the insert barrel 1021, and the other end is connected to the inner wall of the second shell 102; an end portion of one end of the plurality of second reinforcing members 800 attached to the inner wall of the second housing 102 forms an end face supporting the filter member 700.

A plurality of second reinforcing members 800 are annularly arranged on the inner wall of the second shell 102 facing the first shell 101 so as to improve the overall strength of the second shell 102; the end portions of the second reinforcing members 800 are flush with the inner wall of the insert barrel 1021 so that the liquid flowing out through the filter member 700 flows more easily toward the cavity of the insert barrel 1021 through the gaps between the adjacent second reinforcing members 800; the end surfaces of the filter member 700 are assembled and supported by the plurality of second reinforcing members 800 to reduce the difficulty of assembling the filter member 700, and the filter member 700 is simple in structure and low in cost.

Further, referring to fig. 3 and fig. 4 together, as a specific embodiment of the infusion device provided by the present invention, a first clamping portion 1011 is disposed on the first housing 101; a second clamping portion 1022 clamped and assembled with the first clamping portion 1011 is arranged on the second shell 102; a first clamping groove 10111 for adapting the second clamping part 1022 is formed in the first clamping part 1011; the second clamping portion 1022 is provided with a second clamping groove 10221 for adapting the first clamping portion 1011. Through first joint portion 1011, first joint groove 10111, second joint portion 1022 and second joint groove 10221 for the assembly degree of difficulty of first casing 101 and second casing 102 is low, simple structure, and is with low costs.

Specifically, the cross sections of the first clamping portion 1011 and the second clamping portion 1022 are wedge-shaped; when the first housing 101 is assembled with the second housing 102, the first clamping portion 1011 and the second clamping portion 1022 are more easily clamped and assembled by the wedge-shaped inclined plane.

Further, referring to fig. 3 and fig. 4, as a specific embodiment of the infusion device of the present invention, a clamping portion 502 is disposed on a side of the flexible base 500 away from the floating ball 400, and is clamped in the second clamping groove 10221; the end surface of the first clamping portion 1011 abuts against the clamping portion 502, and one side of the clamping portion 502 away from the first clamping portion 1011 abuts against the groove wall of the second clamping groove 10221.

The flexible substrate 500 is provided with the clamping portion 502, and the clamping portion 502 abuts against the groove wall of the second clamping groove 10221 through the end surface of the first clamping portion 1011, so that the clamping portion 502 is clamped between the end surface of the first clamping portion 1011 and the groove wall of the second clamping groove 10221, and the flexibility can be basically and rapidly assembled on the body 100; and by means of abutting connection, the sealing performance among the groove walls of the first clamping portion 1011, the clamping portion 502 of the flexible substrate 500 and the second clamping groove 10221 is improved, and liquid flowing into the liquid outlet 201 of the drip tube 200 from the clamping position is effectively reduced, so that the liquid backflow or blood backflow is reduced.

Further, referring to fig. 3 and fig. 4, as an embodiment of the infusion device of the present invention, two ends of the body 100 are disposed in a spherical shape. The end part arranged on the spherical surface can be better attached to the inner wall of the drip tube 200, so that the sealing performance is better when the infusion device is inserted into the liquid outlet 201 of the drip tube 200; one end of the body 100, which is far away from the liquid outlet 201 of the drip tube 200, is arranged in a spherical shape, so that the liquid at the water level line which gradually descends flows towards the drip tube 200.

The infusion apparatus comprises a drip tube 200, a needle and a communicating pipe for communicating the drip tube 200 and the needle with a transfusion bottle, wherein the infusion apparatus is inserted into a liquid outlet 201 of the drip tube 200; the infusion set is communicated with the inner cavity of the drip tube 200 through a communication hole 300.

Communicating the infusion device with the liquid outlet 201 of the drip tube 200, so as to drive the floating ball 400 to gradually move towards the liquid outlet 201 of the drip tube 200 along with the descending of the water level line of the liquid flowing into the infusion device by descending of the water level line, and when the water level line is lower than the opening end of the liquid outlet 201 of the drip tube 200, the floating ball 400 closes the liquid outlet 201 of the drip tube 200; and the infusion device is communicated with the liquid outlet 201 of the drip tube 200, so that the liquid reflux or blood reflux is reduced when the floating ball 400 closes the liquid outlet 201 of the drip tube 200.

Specifically, as shown in fig. 2 and fig. 6, a transfusion bottle 1, a dropper 200 and a needle 4 are sequentially communicated through a communication pipe 2; the locking device 3 is arranged on the outer wall of the communicating pipe 2 on the section of the drip pipe 200 and the needle 4, and the flow rate of the liquid input into the human body is controlled through the locking device 3; the infusion device is inserted on the drip tube 200 and is communicated with the liquid outlet 201 of the drip tube 200, and through the structural design in the infusion device, the floating ball 400 gradually moves towards the liquid outlet 201 along with the descending of the water level line in the infusion device until the water level line is lower than the through hole 501, and the floating ball 400 seals the liquid outlet 201.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An infusion device, characterized in that: comprises a body with a cavity inside; one end of the body is used for being communicated with a liquid outlet of the drip tube, and the other end of the body is provided with a communicating hole used for communicating a cavity of the drip tube with a cavity of the body; the floating ball is assembled in the body, and the density of the floating ball is less than that of the liquid in the cavity of the body; when the liquid in the cavity of the body gradually runs off, the floating ball gradually moves towards the liquid outlet of the drip tube until the floating ball seals the liquid outlet.

2. The infusion device as claimed in claim 1, wherein: one end of the body, which is close to the liquid outlet of the drip tube, is hermetically assembled with a flexible substrate in interference fit with the floating ball; one side of the flexible substrate facing the floating ball is matched with the outer wall of the floating ball; the flexible substrate is provided with a through hole which penetrates through the flexible substrate along the thickness direction of the flexible substrate, and the through hole is communicated with the liquid outlet of the drip tube; when the liquid in the cavity of the body gradually runs off, the floating ball gradually moves towards the through hole until the floating ball seals the through hole.

3. The infusion device as claimed in claim 2, wherein: a plurality of first reinforcing pieces are annularly arranged on one side of the flexible base body, which is far away from the floating ball; one end of the first reinforcing piece is flush with the inner wall of the through hole, and the other end of the first reinforcing piece abuts against the inner wall of the cavity of the body.

4. The infusion device as claimed in claim 2, wherein: a filtering piece for filtering the liquid is arranged between one end of the body, which is close to the liquid outlet of the drip tube, and the flexible base body.

5. The infusion device as claimed in claim 4, wherein: the body comprises a first shell and a second shell assembled with the first shell in a clamping manner; the communication hole is positioned on the first shell; the filter element is assembled on the second shell; the second shell is provided with an inserting barrel which is used for being inserted into a liquid outlet of the drip tube.

6. The infusion device as claimed in claim 5, wherein: a plurality of second reinforcing pieces are annularly arranged on the inner wall of the second shell facing the first shell; the end part of one end of the second reinforcing part is flush with the inner wall of the inserting cylinder, and the other end of the second reinforcing part is connected to the inner wall of the second shell; the end of the plurality of second reinforcing members attached to one end of the inner wall of the second housing forms an end face that supports the filter member.

7. The infusion device as claimed in claim 5, wherein: the first shell is provided with a first clamping part; the second shell is provided with a second clamping part which is clamped and assembled with the first clamping part; the first clamping part is provided with a first clamping groove for adapting the second clamping part; and a second clamping groove used for adapting the first clamping part is arranged on the second clamping part.

8. The infusion device as claimed in claim 7, wherein: a clamping part clamped in the second clamping groove is arranged on one side, away from the floating ball, of the flexible base body; the end face of the first clamping portion abuts against the clamping portion, and one side, far away from the first clamping portion, of the clamping portion abuts against the groove wall of the second clamping groove.

9. The infusion device as claimed in claim 1, wherein: the two ends of the body are arranged in a spherical manner.

10. The utility model provides an infusion apparatus, includes drip tube, syringe needle and with the communicating pipe of drip tube and syringe needle and transfusion bottle intercommunication, its characterized in that: the liquid outlet of the drip tube is inserted with the infusion device as claimed in any one of claims 1 to 9; the infusion device is communicated with the inner cavity of the drip tube through a communication hole.

Images