CN215652983U - Extracorporeal blood loop exhaust device - Google Patents
Extracorporeal blood loop exhaust device Download PDFInfo
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- CN215652983U CN215652983U CN202122109261.5U CN202122109261U CN215652983U CN 215652983 U CN215652983 U CN 215652983U CN 202122109261 U CN202122109261 U CN 202122109261U CN 215652983 U CN215652983 U CN 215652983U
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- pipe
- way pipe
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- connecting port
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- 239000008280 blood Substances 0.000 title claims abstract description 41
- 210000004369 blood Anatomy 0.000 title claims abstract description 41
- 230000000149 penetrating effect Effects 0.000 claims 2
- 238000011282 treatment Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000746 purification Methods 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001631 haemodialysis Methods 0.000 description 2
- 230000000322 hemodialysis Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013632 homeostatic process Effects 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012959 renal replacement therapy Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an extracorporeal blood loop exhaust device which comprises a three-way pipe, wherein three ports of the three-way pipe are respectively a first connector, a second connector and a third connector, the first connector of the three-way pipe is provided with a detachable needle head, the second connector of the three-way pipe is provided with a blood loop connecting pipe with controllable opening and closing, the third connector of the three-way pipe is provided with a suction device, and the middle part of the third connector is provided with a one-way valve. The utility model utilizes the needle head and the blood loop connecting pipe which can be controlled to open and close which are respectively arranged at the other parallel port of the three-way pipe, and the one-way valve and the suction device which are arranged at the vertical port of the three-way pipe are matched, so that the air in the closed venous kettle loop and the CRRT loop can be pumped out, the operation is simple and convenient, the effect of CRRT treatment is improved, and the risk is reduced.
Description
Technical Field
The utility model relates to the field of exhaust devices, in particular to an extracorporeal blood circuit exhaust device.
Background
Continuous Renal Replacement Therapy (CRRT) is commonly used in hemodialysis rooms, ICU and emergency wards, and is a blood purification treatment technology for continuously and slowly removing water and solutes in an extracorporeal circulation blood purification mode to replace the renal function. Compared with the common hemodialysis, the CRRT prolongs the blood purification treatment time and reduces the treatment efficiency in unit time, so that the influence of the solute concentration and the volume change in the blood on the organism is minimized, and a filter with high permeability and good biocompatibility is adopted; provides an extremely important homeostasis balance for the treatment of critically ill patients.
When a CRRT treatment method is used for treating a patient at present, due to the fact that the CRRT operation has high risk and various complications are prone to occurring, a machine is arranged beside a common patient and used for monitoring various possible complications of the patient, when air alarming occurs in the treatment process, air in a closed venous kettle loop and the air in the CRRT loop are not prone to being exhausted, the treatment effect on the patient is prone to being affected, and therefore the effect of CRRT treatment on the patient is reduced.
Disclosure of Invention
The object of the present invention is to provide an extracorporeal blood circuit venting device to solve the problems set forth in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the three ports of the three-way pipe are respectively a first connector, a second connector and a third connector, the first connector of the three-way pipe is provided with a detachable needle head, the second connector of the three-way pipe is provided with a blood loop connecting pipe with controllable opening and closing, the third connector of the three-way pipe is provided with a suction device, and the middle part of the third connector is provided with a one-way valve.
Preferably, suction device includes transparent sleeve, actuating lever and rubber chock plug, the rubber chock plug is fixed to be cup jointed in the one end of actuating lever, just the outer wall of rubber chock plug and the setting of laminating of transparent sheathed tube inner wall slip, the other end of actuating lever just is located transparent sheathed tube outside fixedly connected with grab handle.
Preferably, an external thread connecting pipe is fixedly and alternately connected to one end of the transparent sleeve, an internal thread connecting pipe is connected to the inner wall of the external thread connecting pipe in a threaded manner, and one end of the internal thread connecting pipe is fixedly communicated with a third connector of the three-way pipe.
Preferably, an internal thread sleeve is fixedly and alternately connected to one end of the needle head, a needle tube connector is fixedly connected to a first connector of the three-way tube, an external thread sleeve is fixedly connected to one end of the needle tube connector, and the outer wall of the external thread sleeve is in threaded connection with the inner wall of the internal thread sleeve.
Preferably, one end of the blood loop connecting pipe is fixedly connected with a two-way valve in an inserting manner, and one end of the two-way valve is fixedly connected with a second connecting port of the three-way pipe in an inserting manner.
The utility model has the technical effects and advantages that:
(1) the utility model utilizes the needle head and the blood loop connecting pipe which can be controlled to be opened and closed which are respectively arranged at the other parallel port of the three-way pipe, and the check valve and the suction device which are arranged at the vertical port of the three-way pipe are matched, so that air in the closed venous kettle loop and the CRRT loop can be pumped out, the operation is simple and convenient, the effect of CRRT treatment is improved, and the risk is reduced;
(2) according to the utility model, the internal thread connecting pipe and the external thread connecting pipe are arranged between the suction device and the third connecting port of the three-way pipe, so that the suction device can be quickly disassembled and assembled in a rotating mode, and meanwhile, the plug head with the external thread groove can be used for sealing and blocking the third connecting port of the three-way pipe, so that blood, air and the like in the three-way pipe can be prevented from flowing to the third connecting port after the suction device is disassembled, and the use safety of the suction device is improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the suction device of the present invention.
FIG. 3 is a partial split structure diagram of the three-way tube and the needle of the present invention.
In the figure: 1. a three-way pipe; 2. a needle tube connector; 3. a needle head; 4. a blood circuit connection tube; 5. a two-way valve; 6. a one-way valve; 7. an internal thread connecting pipe; 8. a suction device; 801. a transparent sleeve; 802. a drive rod; 803. a handle; 804. a rubber stopper; 805. an external thread connecting pipe; 9. an internally threaded sleeve; 10. an externally threaded sleeve.
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.
The utility model provides an extracorporeal blood loop exhaust device as shown in figures 1-3, which comprises a three-way pipe 1, wherein three ports of the three-way pipe 1 are respectively a first connecting port, a second connecting port and a third connecting port, the first connecting port and the second connecting port are positioned on the same horizontal line and are communicated, the third connecting port is mutually perpendicular to and communicated with the first connecting port and the second connecting port, the first connecting port of the three-way pipe 1 is provided with a detachable needle 3 which is inserted into a blood vessel of a patient to form an annular passage for facilitating CRRT loop, the second connecting port of the three-way pipe 1 is provided with a blood loop connecting pipe 4 with controllable opening and closing and is communicated with an external blood loop, one end of the blood loop connecting pipe 4 is fixedly and interpenetratively connected with a two-way valve 5, one end of the two-way valve 5 is fixedly and interpenetratively connected with the second connecting port of the three-way pipe 1, and the two-way valve 5 is arranged, the three-way pipe is characterized in that the blood loop connecting pipe 4 can be controlled to be opened or closed, so that the operation of a user is facilitated, the suction device 8 is arranged at the third connecting port of the three-way pipe 1, the suction device 8 can generate a suction effect at the third connecting port of the three-way pipe 1, so that air and blood entering the three-way pipe 1 from the blood loop connecting pipe 4 are sucked out and exhausted, the middle part of the third connecting port is provided with the one-way valve 6, the flow direction of the blood and the air is guided, and the phenomenon of air or blood backflow is avoided;
the suction device 8 comprises a transparent sleeve 801, a driving rod 802 and a rubber plug 804, the rubber plug 804 is fixedly sleeved at one end of the driving rod 802, the outer wall of the rubber plug 804 is in sliding fit with the inner wall of the transparent sleeve 801, the other end of the driving rod 802 is fixedly connected with a grab handle 803 outside the transparent sleeve 801, an operator manually pulls the driving rod 802 outwards to drive the rubber plug 804 to move in the inner cavity of the transparent sleeve 801, the inner volume of the transparent sleeve 8011 is increased, the pressure is reduced, and therefore a suction effect is generated at the port;
an external thread connecting pipe 805 is fixedly inserted and connected to one end of the transparent sleeve 801, an internal thread connecting pipe 7 is connected to the inner wall of the external thread connecting pipe 805 in a threaded manner, one end of the internal thread connecting pipe 7 is fixedly communicated with a third connecting port of the three-way pipe 1, the external thread connecting pipe 805 is connected with the internal thread connecting pipe 7 in a threaded manner, the plate and the suction device 8 are disassembled and assembled, meanwhile, a pipe plug with external threads can be used for being rotatably inserted into the internal thread connecting pipe 7, the third connecting port of the three-way pipe 1 is sealed and blocked, and blood is prevented from flowing out;
the fixed interior thread bush 9 that alternates of one end of syringe needle 3, the fixedly connected with needle tubing connector 2 at the first connector department of three-way pipe 1, the one end fixedly connected with external screw thread bush 10 of needle tubing connector 2, and the outer wall of external screw thread bush 10 and the inner wall threaded connection of interior thread bush 9, the dismouting of syringe needle 3 of being convenient for can becoming to internal screw thread bush 9 and external screw thread bush 10's setting to the change of syringe needle 3 of being convenient for.
The working principle of the utility model is as follows: the user inserts the one end that three-way pipe 1 had syringe needle 3 in the patient's blood vessel, then with three-way pipe 1 have the one end and the outside blood loop intercommunication of blood loop connecting pipe 4, manually rotate two way valve 5 between blood loop connecting pipe 4 and the three-way pipe 1, make blood loop connecting pipe 4 and three-way pipe 1 inner chamber be linked together, operator control suction device 8 work, utilize suction device 8 to form suction effect at the vertical port of three-way pipe 1, make the blood part that has the air in the blood loop connecting pipe 4 discharge from the third connector of three-way pipe 1, utilize check valve 6 to make the air of taking out and blood unable reflux three-way pipe 1 inner chamber, can make the air in the blood discharged completely.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used by the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The external blood loop exhaust device comprises a three-way pipe (1) and is characterized in that three ports of the three-way pipe (1) are respectively a first connecting port, a second connecting port and a third connecting port, the first connecting port of the three-way pipe (1) is provided with a detachable needle (3), the second connecting port of the three-way pipe (1) is provided with a blood loop connecting pipe (4) with controllable opening and closing, the third connecting port of the three-way pipe (1) is provided with a suction device (8), and the middle part of the third connecting port is provided with a one-way valve (6).
2. The extracorporeal blood circuit exhaust device according to claim 1, wherein the suction device (8) comprises a transparent sleeve (801), a driving rod (802) and a rubber plug (804), the rubber plug (804) is fixedly sleeved on one end of the driving rod (802), the outer wall of the rubber plug (804) is in sliding fit with the inner wall of the transparent sleeve (801), and a handle (803) is fixedly connected to the other end of the driving rod (802) and located outside the transparent sleeve (801).
3. The extracorporeal blood circuit exhaust device according to claim 2, wherein an external threaded connecting pipe (805) is fixedly inserted and connected to one end of the transparent sleeve (801), an internal threaded connecting pipe (7) is threadedly connected to the inner wall of the external threaded connecting pipe (805), and one end of the internal threaded connecting pipe (7) is fixedly communicated with the third connecting port of the three-way pipe (1).
4. An extracorporeal blood circuit exhaust apparatus according to claim 1, wherein an internally threaded sleeve (9) is fixedly inserted and connected to one end of the needle (3), a needle tube connector (2) is fixedly connected to the first connector of the three-way tube (1), an externally threaded sleeve (10) is fixedly connected to one end of the needle tube connector (2), and the outer wall of the externally threaded sleeve (10) is in threaded connection with the inner wall of the internally threaded sleeve (9).
5. An extracorporeal blood circuit exhaust device according to claim 1, wherein a two-way valve (5) is fixedly connected to one end of the blood circuit connecting pipe (4) in a penetrating manner, and one end of the two-way valve (5) is fixedly connected to the second connecting port of the three-way pipe (1) in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109261.5U CN215652983U (en) | 2021-09-02 | 2021-09-02 | Extracorporeal blood loop exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109261.5U CN215652983U (en) | 2021-09-02 | 2021-09-02 | Extracorporeal blood loop exhaust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215652983U true CN215652983U (en) | 2022-01-28 |
Family
ID=79959532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122109261.5U Active CN215652983U (en) | 2021-09-02 | 2021-09-02 | Extracorporeal blood loop exhaust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215652983U (en) |
-
2021
- 2021-09-02 CN CN202122109261.5U patent/CN215652983U/en active Active
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