CN211410695U

CN211410695U - Three-way valve for bedside blood filter catheter

Info

Publication number: CN211410695U
Application number: CN201922363303.0U
Authority: CN
Inventors: 王莹
Original assignee: Ninth Hospital Of Xi'an
Current assignee: Ninth Hospital Of Xi'an
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-04
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to a blood filter technical field, specifically speaking relates to a bedside blood filter is three-way valve for pipe, including the intercommunication storehouse, the intercommunication storehouse is inside cavity and open-top's cylinder structure, and the outside in intercommunication storehouse is connected with first communicating pipe respectively, second communicating pipe and third communicating pipe, and the inside of first communicating pipe is provided with the tee bend ball valve, and the top of tee bend ball valve closely bonds and has the connecting rod, and the top of connecting rod closely bonds and has the carousel, and the outer wall of carousel closely bonds and has a plurality of handles, and the outer end of first communicating pipe closely bonds and has first joint, and the outside of first joint articulates there is flip. The utility model discloses a design can stop the one end that blood flows back to the pipeline of the opposite side completely, effectively avoids blood dwell time overlength to form the risk of thrombus in the pipeline of one side of original Y type pipe, avoids the nurse to use normal saline to carry out the wash pipe, finally guarantees patient safety, and can open and close the outer end of three-way pipe at any time, avoids causing the pollution.

Description

Three-way valve for bedside blood filter catheter

Technical Field

The utility model relates to a blood filter technical field, specifically speaking relates to a bedside blood filter is three-way valve for pipe.

Background

Hemofiltration (HF) refers to the continuous replenishment of a certain amount of replacement fluid in the vascular access without the use of dialysate during blood purification, followed by thorough mixing with blood and ultrafiltration at the same rate to remove excess water and toxins from the body, which requires the use of a hemofilter during hemofiltration.

At present, a Y-shaped pipe joint is adopted by a blood filter, the Y-shaped pipe joint is too long, a catheter on one side is generally used within ten hours of blood filtration, the catheter on the other side cannot be basically used, the blood filter is used when a user leaves a machine, blood can flow back inadvertently due to long pipelines, long-time blood is collected in the catheter and can be coagulated, so that the risk of thrombus formation is caused, the blood must be washed by physiological saline when the user leaves the machine, the mode is easy to cause the risk of causing thrombus, and the interface is easy to cause pollution after being exposed outside for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three-way valve for bedside blood filter pipe to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a three-way valve for bedside blood filter conduit, which comprises a communicating bin, wherein the communicating bin is a hollow cylinder structure with an open top, the outer side of the communicating bin is respectively connected with a first communicating pipe, a second communicating pipe and a third communicating pipe, the inside of the first communicating pipe is provided with a three-way ball valve, the top of the three-way ball valve is tightly bonded with a connecting rod, the top end of the connecting rod is tightly bonded with a rotary disc, the outer wall of the rotary disc is tightly bonded with a plurality of handles, the outer end of the first communicating pipe is tightly bonded with a first joint, the outer side of the first joint is hinged with a flip cover, the inner wall of the middle part of the flip cover is tightly bonded with a sealing plug, the first joint is in a ring-shaped structure, the inner ring of the first joint is tightly bonded with a sealing ring, the outer end of, a third joint is closely bonded at the outer end of the third communicating pipe; the inner wall of second communicating pipe is close to the port department and closely bonds the anti-return board that has circular structure, a plurality of one-way passageways have been seted up in the lateral wall link up of anti-return board, one-way passageway both sides inner wall symmetry is provided with a plurality of valves, the valve is the arc structure, one side of valve closely bonds with one-way passageway's inner wall, two symmetries laminate mutually between the one end of valve.

Preferably, be provided with the bracing piece between the outer end of first joint and first connecting pipe, the one end of bracing piece is articulated with the outer wall that first connects, flip closely bonds near one side inner wall of bracing piece has the snap ring, the other end of bracing piece cooperates with the snap ring joint of flip inner wall.

Preferably, a T-shaped channel is arranged inside the three-way ball valve, and a through hole is formed in the outer end of the channel.

Preferably, a plurality of the handles form a T-shaped structure together, and the direction of the T-shaped structure is the same as that of the channel.

Preferably, the outer wall of the sealing plug is tightly bonded with a circle of clamping blocks, the inner wall of the sealing ring is provided with a circle of clamping grooves, and the clamping blocks are clamped and matched with the clamping grooves.

Preferably, the inner cross section of the one-way channel is a rectangular structure.

Preferably, the unidirectional channels are arranged in parallel at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: this other three-way valve for blood filter pipe of bed can stop blood completely and flow back to the one end of another side pipeline, effectively avoids blood dwell time overlength to form the risk of thrombus in one side pipeline of original Y type pipe, avoids the nurse to use normal saline to wash the pipe, finally guarantees patient safety, and can open and close the outer end of three-way pipe at any time, avoids causing the pollution.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a part of the structure of the present invention;

FIG. 3 is a schematic structural view of the three-way ball valve of the present invention;

fig. 4 is a schematic view of the internal structure of the first communicating pipe of the present invention;

fig. 5 is a schematic view of an internal structure of a second communication pipe according to the present invention;

fig. 6 is a schematic structural view of the middle anti-backflow plate of the present invention.

In the figure: 1. communicating the bin; 11. a three-way ball valve; 111. a through hole; 112. a channel; 12. a connecting rod; 2. a first communication pipe; 21. a first joint; 211. a cover is turned; 212. a sealing plug; 2121. a clamping block; 213. a seal ring; 2131. a card slot; 214. a support bar; 3. a second communicating pipe; 31. a second joint; 4. a third communicating pipe; 41. a third joint; 5. a turntable; 51. a handle; 6. an anti-backflow plate; 61. a one-way channel; 62. and (4) a valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of technical features being indicated. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The utility model provides a three-way valve for bedside blood filter catheter, as shown in figure 1-figure 6, comprising a communicating bin 1, wherein the communicating bin 1 is a cylinder structure with hollow interior and open top, the outer side of the communicating bin 1 is respectively connected with a first communicating pipe 2, a second communicating pipe 3 and a third communicating pipe 4, one end of the third communicating pipe 4 is connected with the deep venous pipeline of a patient, one end of the first communicating pipe 2 is connected with a blood filter, one end of the second communicating pipe 3 is externally connected with a blood return pipeline, the interior of the first communicating pipe 2 is provided with a three-way ball valve 11 for adjusting the internal passage, the top of the three-way ball valve 11 is tightly bonded with a connecting rod 12, the top end of the connecting rod 12 is tightly bonded with a turntable 5, the outer wall of the turntable 5 is tightly bonded with a plurality of handles 51, the three-way ball valve 11 is rotated by rotating the handles 51, thereby adjusting the internal passage, the outer end of, the external pipeline is convenient, the outer side of the first joint 21 is hinged with a flip cover 211 and is used for closing and opening the first joint 21 and avoiding pollution when the external pipeline is not used, a sealing plug 212 is tightly bonded on the inner wall of the middle part of the flip cover 211 and is used for ensuring the sealing effect when the flip cover 211 is tightly covered, the first joint 21 is of a circular structure, a sealing ring 213 is tightly bonded on the inner ring of the first joint 21, a second joint 31 is tightly bonded on the outer end of the second communicating pipe 3, a third joint 41 is tightly bonded on the outer end of the third communicating pipe 4, the structures of the first joint 21, the second joint 31 and the third joint 41 are the same, and the outer part of the first joint 21 is connected with the flip cover 211 and is used for opening and closing the; the anti-backflow plate 6 with a circular structure is tightly adhered to the end part, close to the end opening, of the inner wall of the second communicating pipe 3 and is used for preventing the blood of the second communicating pipe 3 from flowing back, the side wall of the anti-backflow plate 6 is provided with a plurality of one-way channels 61 in a penetrating way, the inner walls at the two sides of the one-way channels 61 are symmetrically provided with a plurality of valves 62, the valves 62 are of arc structures, one side of each valve 62 is tightly adhered to the inner wall of the one-way channel 61, one ends of the, one-way flow of liquid is enabled through the valve 62, as liquid flows from the outside of the convex side of the valve 62 toward the valve 62, pushing on the convex side of the valve 62, causes the two valves 62 to open, ensures the passage of liquid, when the liquid flows reversely, the impact force of the liquid generates pressure on the inward concave side of the valve 62, so that the two valves 62 are closed, and the unidirectional flow is realized through the structure.

Specifically, be provided with bracing piece 214 between first joint 21 and the outer end of first connecting pipe 2, the one end of bracing piece 214 is articulated with the outer wall that first joint 21, and flip 211 is close to one side inner wall of bracing piece 214 and closely bonds and has the snap ring, and the other end of bracing piece 214 cooperates with the snap ring joint of flip 211 inner wall, can conveniently fix when flip 211 is opened through bracing piece 214, avoids influencing the pipe connection.

In addition, a T-shaped channel 112 is arranged inside the three-way ball valve 11, a through hole 111 is formed in the outer end of the channel 112, and the T-shaped channel 112 is used for realizing communication of pipelines in all directions, and the principle of the three-way ball valve is the same as that of a common three-way valve.

Furthermore, a plurality of handles 51 form a T-shaped structure together, the direction of the T-shaped structure is the same as that of the channel 112, and the direction of the channel 112 inside can be determined by observing the orientation of the handles 51, so that the judgment of the communication direction inside the communication bin 1 is facilitated.

Furthermore, a circle of clamping block 2121 is tightly adhered to the outer wall of the sealing plug 212, a circle of clamping groove 2131 is formed in the inner wall of the sealing ring 213, the clamping block 2121 is in clamping fit with the clamping groove 2131, the sealing plug 212 and the sealing ring 213 can be tightly connected, and the sealing effect is guaranteed.

Further, the inner cross section of the one-way passage 61 is rectangular, which facilitates the movement of the inner valve 62.

Furthermore, the one-way channels 61 are arranged in parallel at equal intervals, so that the uniform circulation of the liquid in the one-way channels is ensured, and the blood is stably conveyed.

When the three-way valve for the bedside blood filter catheter of the embodiment is used, one end of the third communicating pipe 4 is firstly connected with a deep venous pipeline of a patient, one end of the first communicating pipe 2 is connected with a blood filter, one end of the second communicating pipe 3 is externally connected with a blood return pipeline, the handle 51 is rotated to enable the third communicating pipe 4 to be communicated with the first communicating pipe 2, the second communicating pipe 3 is closed to carry out blood filtration, the second communicating pipe 3 is closed to prevent blood backflow, after filtration, the handle 51 is rotated to enable the second communicating pipe 3 to be communicated with the third communicating pipe 4, the first communicating pipe 2 is closed to carry out blood return operation, the first communicating pipe 2 is closed to avoid blockage caused by blood backflow, unidirectional flow in the second communicating pipe 3 can be ensured through the backflow-preventing plate 6 to further avoid blood backflow, the backflow-preventing plate 6 can be additionally arranged in the first communicating pipe 2 as required, further controlling the unidirectional flow of blood in the first communication tube 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bedside blood filter three-way valve for pipe, includes intercommunication storehouse (1), its characterized in that: the connecting bin (1) is of a cylindrical structure with a hollow inside and an open top, the outer side of the connecting bin (1) is connected with a first communicating pipe (2), a second communicating pipe (3) and a third communicating pipe (4) respectively, a three-way ball valve (11) is arranged inside the first communicating pipe (2), a connecting rod (12) is closely bonded to the top of the three-way ball valve (11), a rotary disc (5) is closely bonded to the top end of the connecting rod (12), a plurality of handles (51) are closely bonded to the outer wall of the rotary disc (5), a first connector (21) is closely bonded to the outer end of the first communicating pipe (2), a flip cover (211) is hinged to the outer side of the first connector (21), a sealing plug (212) is closely bonded to the inner wall of the middle of the flip cover (211), the first connector (21) is of a circular ring-shaped structure, a sealing ring (213) is closely bonded to the inner ring of, a second joint (31) is closely bonded to the outer end of the second communication pipe (3), and a third joint (41) is closely bonded to the outer end of the third communication pipe (4); the inner wall of second communicating pipe (3) is close to the port department and closely bonds anti-return board (6) that have circular structure, the lateral wall of anti-return board (6) link up and has seted up a plurality of one-way passageway (61), one-way passageway (61) both sides inner wall symmetry is provided with a plurality of valves (62), valve (62) are the arc structure, one side of valve (62) closely bonds, two symmetries with the inner wall of one-way passageway (61) laminate mutually between the one end of valve (62).

2. A three-way valve for a bedside blood filter catheter according to claim 1, wherein: be provided with bracing piece (214) between the outer end of first joint (21) and first connecting pipe (2), the one end of bracing piece (214) is articulated with the outer wall of first joint (21), flip (211) are close to one side inner wall of bracing piece (214) and closely bond and have the snap ring, the other end of bracing piece (214) and the snap ring joint cooperation of flip (211) inner wall.

3. A three-way valve for a bedside blood filter catheter according to claim 1, wherein: the three-way ball valve (11) is internally provided with a channel (112) with a T-shaped structure, and the outer end of the channel (112) is provided with a through hole (111).

4. A three-way valve for a bedside blood filter catheter according to claim 3, wherein: a plurality of handles (51) form a T-shaped structure together, and the direction of the T-shaped structure is the same as that of the channel (112).

5. A three-way valve for a bedside blood filter catheter according to claim 1, wherein: a circle of clamping blocks (2121) is tightly bonded to the outer wall of the sealing plug (212), a circle of clamping grooves (2131) are formed in the inner wall of the sealing ring (213), and the clamping blocks (2121) are in clamping fit with the clamping grooves (2131).

6. A three-way valve for a bedside blood filter catheter according to claim 1, wherein: the inner cross section of the one-way channel (61) is of a rectangular structure.

7. A three-way valve for a bedside blood filter catheter according to claim 1, wherein: the one-way channels (61) are arranged in parallel at equal intervals.