CN214859785U

CN214859785U - Automatic exhaust valve of venous pot

Info

Publication number: CN214859785U
Application number: CN202120163334.6U
Authority: CN
Inventors: 邓美佳
Original assignee: Fourth Affiliated Hospital of Anhui Medical University
Current assignee: Fourth Affiliated Hospital of Anhui Medical University
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-11-26
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a vein kettle automatic exhaust valve, include with vein kettle exhaust joint threaded connection's connector and connect the pipe at the connector right-hand member, the right-hand member of pipe is connected with the right open-ended that exhausts usefulness and hinders a liquid section of thick bamboo, and hinders and install the pellicle that hinders liquid of ventilating in the liquid section of thick bamboo. The venous kettle is characterized by further comprising a plugging mechanism which is arranged at the right end of the liquid blocking cylinder and can be opened under certain pressure, and the pressure of the venous kettle can be guaranteed through the plugging mechanism. The connector is connected with the exhaust joint of vein kettle, and the blood of vein kettle is in the bottom, and is gaseous in the upside, in case gaseous too much, the pressure increase will follow the upside and connect the entering connector through the exhaust, backs down the shutoff piece, overcomes the elasticity of spring, realizes exhausting, avoids gaseous too much, realizes self-bleeding, and is more convenient, need not artifical exhaust, and simultaneously, the pellicle can avoid blood to flow, only exhausts, and is safer. The pull block is directly pulled, so that manual exhaust can be realized, and the functions are rich.

Description

Automatic exhaust valve of venous pot

Technical Field

The utility model relates to a vein kettle self-bleeding field specifically is a vein kettle self-bleeding valve.

Background

The principle of extracorporeal circulation is that blood in a patient body is pumped out from a artery end through a pump on a machine, and flows through an arterial pot, a dialyzer, a venous pot and a bubble detector in sequence, wherein the blood pump is stopped automatically when the machine detects that air in the venous pot is too much, the extracorporeal circulation is static at the moment), and is transfused back into the patient body, the blood pump is stopped when the air is accidentally introduced into the venous pot and any link in front of the venous pot, and the air in front of the venous pot is discharged from a third position (the venous pot) in the whole extracorporeal path only through an injector due to the principle of atmospheric pressure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vein kettle air relief valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a vein kettle self-bleeding valve, includes the connector with vein kettle exhaust joint threaded connection and connects the pipe at the connector right-hand member, the right-hand member of pipe is connected with the right open-ended of the tube-shape of exhaust usefulness and hinders a liquid section of thick bamboo, and hinders and install the pellicle that hinders liquid of ventilating in the liquid section of thick bamboo.

The venous kettle is characterized by further comprising a plugging mechanism which is arranged at the right end of the liquid blocking cylinder and can be opened under certain pressure, and the pressure of the venous kettle can be guaranteed through the plugging mechanism.

Preferably, plugging mechanism is including installing the lid at liquid blocking cylinder right-hand member, and pegs graft on the lid and have the ejector pin of controlling the setting, be provided with the shutoff ring that is located the pellicle right side that the inner chamber cross-section is the round platform type in the liquid blocking cylinder, the minor diameter end of shutoff ring is left, and the left end of ejector pin is fixed with the shutoff piece with the round platform type of shutoff ring looks adaptation, be connected through the elastomeric element who cup joints on the ejector pin between shutoff piece and the lid, and be provided with the bleeder vent of usefulness of ventilating on the lid.

Preferably, the elastic component is a spring, and two ends of the spring respectively abut against the cover body and the plugging block.

Preferably, the ejector rod is sleeved with a guide ring for guiding, which is fixed at the right end of the cover body.

Preferably, the right end of the ejector rod is fixed with a pull block which is convenient for active exhaust and force application.

Preferably, the cover body and the liquid blocking cylinder are in threaded connection with each other to adjust the extrusion force of the spring to the plugging block.

Preferably, the cover body is circumferentially fixed with convex ridges which are convenient for force application at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the connector is connected with an exhaust connector of the venous pot, blood of the venous pot is at the bottom, gas is at the upper side, once the gas is excessive, the pressure is increased, the gas enters the connector from the upper side through the exhaust connector, the plugging block is pushed open, the elasticity of the spring is overcome, the exhaust is realized, the excessive gas is avoided, the automatic exhaust is realized, the convenience is realized, the manual exhaust is not needed, and meanwhile, the semipermeable membrane can avoid the blood from flowing out and only exhaust, so that the safety is realized;

2. the pull block is directly pulled, so that manual exhaust can be realized, and the functions are rich;

3. the cover body is rotated, so that the extrusion force of the cover body on the spring can be adjusted, the exhaust sensitivity is changed, the compression amount is small, the exhaust is easier and more sensitive, the compression amount is large, and the pressure required by the exhaust is large.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a right side view of the present invention;

fig. 4 is a left side view of the present invention;

fig. 5 is a first axial side view of the present invention;

fig. 6 is a second axial view of the present invention;

fig. 7 is a front view of the connection between the plugging block and the pulling block of the present invention;

fig. 8 is a side view of the connecting shaft of the plugging block and the pulling block of the present invention;

in the figure: 1. a connector; 11. a conduit; 2. a liquid blocking cylinder; 21. a semi-permeable membrane; 22. a cover body; 221. air holes are formed; 23. a top rod; 24. a plugging ring; 25. a plugging block; 26. a spring; 27. a guide ring; 28. pulling the block; 29. and (4) convex edges.

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.

Referring to fig. 1 to 8, the present invention provides a technical solution of an automatic exhaust valve for a venous kettle: the utility model provides a vein kettle air relief valve, includes connector 1 with vein kettle air release connector threaded connection and connects at the pipe 11 of connector 1 right-hand member, and the right-hand member of pipe 11 is connected with the cylinder-shaped right open-ended that exhausts and hinders liquid section of thick bamboo 2, and hinders and install the pellicle 21 that hinders liquid of ventilating in the liquid section of thick bamboo 2. The intravenous drip chamber has a vent tube, closed at the end, which can be released by unscrewing, where the connector 1 is arranged to be screwed to the vent connector of the vent tube.

The venous kettle is characterized by further comprising a plugging mechanism which is arranged at the right end of the liquid blocking cylinder 2 and can be opened under certain pressure, and the pressure of the venous kettle can be guaranteed through the plugging mechanism. The plugging mechanism comprises a cover body 22 arranged at the right end of a liquid resistance cylinder 2, a push rod 23 arranged on the left side and the right side is inserted into the cover body 22, a plugging ring 24 with a truncated cone-shaped inner cavity cross section and positioned on the right side of a semipermeable membrane 21 is arranged in the liquid resistance cylinder 2, the small diameter end of the plugging ring 24 faces the left side, a truncated cone-shaped plugging block 25 matched with the plugging ring 24 is fixed at the left end of the push rod 23, the plugging block 25 is connected with the cover body 22 through an elastic component sleeved on the push rod 23, a ventilation hole 221 for ventilation is formed in the cover body 22, and the ventilation hole 221 ensures internal pressure balance. The certain pressure refers to the elastic pressure generated by the elastic component, when the internal pressure of the venous pot is greater than the pressure generated by the elastic component, the elastic component is overcome, the sealing block 25 is pushed open for air exhaust, so that the venous pot is ensured to have an initial pressure, and the certain value is related to the initial setting and can be adjusted and set according to the material and the position. The elastic member is a spring 26, and two ends of the spring 26 respectively abut against the cover 22 and the plugging block 25. Both ends of the spring 26 are not fixed, and an elastic force is generated by pressing the cover 22. A guide ring 27 for guiding is fitted over the top bar 23 and fixed to the right end of the cover 22. The guide ring 27 makes the top bar 23 move left and right more smoothly. The right end of the mandril 23 is fixed with a pulling block 28 which is convenient for active exhaust and force application. The ejector rod 23 is conveniently pulled to realize manual exhaust. The cover body 22 and the liquid blocking cylinder 2 are in threaded connection with an adjusting spring 26 for adjusting the extrusion force of the blocking block 25. The initial pressure of the spring 26, and thus the pressure at which the block 25 opens, is adjusted for more flexibility. The cover body 22 is fixed with convex ridges 29 which are convenient for force application at equal intervals in the circumferential direction. The cover body 22 is convenient to rotate, and force application is convenient.

The working principle is as follows: connector 1 is connected with the exhaust joint of vein kettle, and the blood of vein kettle is in the bottom, and is gaseous in the upside, in case gaseous too much, the pressure increase will follow the upside and connect the entering connector 1 through the exhaust, backs down shutoff piece 25, overcomes spring 26's elasticity, realizes exhausting, avoids gaseous too much, realizes self-bleeding, and is more convenient, need not artifical exhaust, and simultaneously, pellicle 21 can avoid blood to flow out, only exhausts, and is safer. The pull block 28 is directly pulled, so that manual exhaust can be realized, and the functions are rich. The cover body 22 is rotated, the extrusion force degree of the cover body 22 to the spring 26 can be adjusted, the exhaust sensitivity is changed, the compression amount is small, the exhaust is easier and more sensitive, the compression amount is large, and the pressure required by the exhaust is large.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vein kettle self-bleeding valve, includes connector (1) and pipe (11) of connection at connector (1) right-hand member with vein kettle exhaust connector threaded connection, its characterized in that: the right end of the conduit (11) is connected with a cylindrical liquid-blocking cylinder (2) for exhausting and with a right opening, and a semipermeable membrane (21) for ventilating and blocking liquid is arranged in the liquid-blocking cylinder (2);

the venous kettle is characterized by further comprising a plugging mechanism which is arranged at the right end of the liquid blocking cylinder (2) and can be opened under certain pressure, and the pressure of the venous kettle can be guaranteed through the plugging mechanism.

2. The automatic exhaust valve for venous kettles as claimed in claim 1, wherein: plugging mechanism is including installing lid (22) at hindering liquid section of thick bamboo (2) right-hand member, and peg graft on lid (22) and have ejector pin (23) of controlling the setting, be provided with shutoff ring (24) that lie in pellicle (21) right side that the inner chamber cross-section is the round platform type in hindering liquid section of thick bamboo (2), the minor diameter end of shutoff ring (24) is left, and the left end of ejector pin (23) is fixed with the shutoff piece (25) of the round platform type with shutoff ring (24) looks adaptation, be connected through cup jointing the elastomeric element on ejector pin (23) between shutoff piece (25) and lid (22), and be provided with bleeder vent (221) of usefulness of ventilating on lid (22).

3. An automatic exhaust valve for a venous pot as claimed in claim 2, wherein: the elastic component is a spring (26), and two ends of the spring (26) respectively abut against the cover body (22) and the blocking block (25).

4. An automatic exhaust valve for a venous pot as claimed in claim 3, wherein: the ejector rod (23) is sleeved with a guide ring (27) for guiding, which is fixed at the right end of the cover body (22).

5. An automatic exhaust valve for venous kettles as claimed in claim 4, wherein: and a pulling block (28) convenient for active exhaust and force application is fixed at the right end of the ejector rod (23).

6. An automatic exhaust valve for venous kettles as claimed in claim 5, wherein: the cover body (22) and the liquid blocking cylinder (2) are in threaded connection with an extrusion force of an adjusting spring (26) to the plugging block (25).

7. An automatic exhaust valve for venous kettles as claimed in claim 6, wherein: convex ridges (29) convenient for force application are fixed on the cover body (22) at equal intervals in the circumferential direction.