CN219230935U

CN219230935U - Venous kettle for hemodialysis

Info

Publication number: CN219230935U
Application number: CN202223422738.6U
Authority: CN
Inventors: 刘擘
Original assignee: Sun Yat Sen Memorial Hospital Sun Yat Sen University
Current assignee: Sun Yat Sen Memorial Hospital Sun Yat Sen University
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-23
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a venous pot for hemodialysis, which comprises a first venous pot and a second venous pot, wherein one end of the first venous pot is provided with a liquid inlet pipe, the other end of the first venous pot is provided with a first liquid outlet pipe, the liquid inlet pipe and the first liquid outlet pipe are both communicated with the first venous pot, the second venous pot is arranged on one side of the first venous pot, one end of the second venous pot is provided with a communicating pipe, the other end of the second venous pot is provided with a second liquid outlet pipe, the communicating pipe and the second liquid outlet pipe are both communicated with the second venous pot, one end of the communicating pipe is provided with a puncture needle, the puncture needle can be inserted into the liquid inlet pipe and is communicated with the liquid inlet pipe, the puncture needle is communicated with the communicating pipe, and the length of the second venous pot is smaller than that of the first venous pot. When the first venous pot is in the blocking phenomenon, the liquid inlet pipe of the first venous pot is punctured through the puncture needle, so that blood is redirected to flow into the second venous pot and finally flows back to a human body, smoothness of an extracorporeal blood pipeline is guaranteed, blood waste is avoided, and the advantages of convenience in operation and low consumable cost of nurses are achieved.

Description

Venous kettle for hemodialysis

Technical Field

The utility model belongs to an important structure of a hemodialysis appliance, and particularly relates to a venous kettle for hemodialysis.

Background

Hemodialysis is a common kidney substitution treatment mode, and when in hemodialysis treatment, blood of a patient flows out of a body through a puncture needle or a catheter and then is connected with a dialyzer through a blood path tube; after exchanging substances with the dialysate through the dialyzer, the blood is drained back into the body through a blood vessel (including a venous pot).

Clinically, for uremic patients with potential bleeding risks and combined hypoxia or liver dysfunction, when hemodialysis is carried out, anticoagulants such as heparin, low-molecular heparin and the like cannot be used for whole body anticoagulation, or local sodium citrate anticoagulation can not be used, and anticoagulation-free hemodialysis treatment can only be adopted, so that the risk of thrombus formation of blood vessels is obviously increased, and when a large number of or massive thrombus formation in a pipeline is serious, the extracorporeal blood vessels are completely blocked, so that blood backflow in the extracorporeal blood vessels is blocked, blood waste is caused, and the anemia symptoms of the uremic patients are further aggravated. This severe line blockage often occurs in venous kettles.

At present, only a single venous pot is used for a blood path tube clinically, and once a venous pot is blocked due to massive or massive thrombus formation, blood in the blood path tube and the dialyzer outside the body cannot be infused back into a patient, and the blood in the blood path tube can only be discarded along with the blood path tube, so that blood is wasted, and anemia of uremic patients is further aggravated. In addition, the presently disclosed patent-application No. 202123024979.0 discloses a heparin-free hemodialysis switching type special blood vessel, which comprises two venous kettles, and has two disadvantages: firstly, two venous kettles are connected in parallel on the whole pipeline, and each venous kettle is provided with a valve to be controlled, so that the pipeline is tedious, and the operation complexity of nurses is obviously increased; second, on-demand use cannot be achieved, because only a portion of non-anticoagulated hemodialysis patients may have complete blockage of the tubing, and when such tubing is used, if the patients do not have blockage of the tubing, waste of consumables is caused, and treatment cost of the patients is increased.

Disclosure of Invention

The present utility model aims to provide a venous bottle for hemodialysis which can solve at least one of the above problems.

According to one aspect of the present utility model, there is provided a venous pot for hemodialysis, comprising a first venous pot and a second venous pot, wherein one end of the first venous pot is provided with a liquid inlet pipe, the other end is provided with a first liquid outlet pipe, the liquid inlet pipe and the first liquid outlet pipe are both communicated with the first venous pot, the second venous pot is arranged on one side of the first venous pot, one end of the second venous pot is provided with a communicating pipe, the other end is provided with a second liquid outlet pipe, the communicating pipe and the second liquid outlet pipe are both communicated with the second venous pot, one end of the communicating pipe is provided with a puncture needle, the puncture needle can be inserted into the liquid inlet pipe and is communicated with the liquid inlet pipe, the puncture needle is communicated with the communicating pipe, and the length of the second venous pot is smaller than that of the first venous pot.

The beneficial effects of the utility model are as follows: through being equipped with the second venous pot, consequently, when first venous pot appears blocking the phenomenon, puncture the feed liquor pipe through the pjncture needle for blood can enter into communicating pipe through the pjncture needle, again flow out through second venous pot and second drain pipe, finally flow back to the human body, has guaranteed the smoothness nature of external blood circuit. Therefore, the blood can flow through the second venous kettle in time, the smoothness of a blood loop is ensured, the waste of the blood is avoided, the whole pipeline is simple, and the operation is convenient; in addition, the length of the second venous kettle is shorter than that of the first venous kettle, so that the material consumption is reduced, and the cost is low.

In some embodiments, a venous pitcher for hemodialysis further includes a piercing portion disposed on the fluid inlet tube, and the piercing needle is capable of piercing the piercing portion and inserting into the fluid inlet tube. Therefore, by the aid of the puncture part, an operator can conveniently and rapidly puncture, and the operation is convenient.

In some embodiments, the venous kettle for hemodialysis further comprises a fixing head, the first side wing and the second side wing are respectively arranged on two sides of the puncture part, the fixing head can be fixed on the first side wing and the second side wing, the puncture needle is arranged on the fixing head, and the fixing head is connected with the communicating pipe. From this, through being equipped with the fixed head, can conveniently pass through the cooperation of fixed head with puncture portion both sides flank with the second venous kettle for the pjncture needle is fixed, can keep the intercommunication state with the feed liquor pipe, need not the manual fixed of operating personnel, convenient operation.

In some embodiments, the fixing head comprises a first clamping edge and a second clamping edge, the first clamping edge and the second clamping edge are oppositely arranged, the first clamping edge is clamped on the first side wing, and the second clamping edge is clamped on the second side wing. Therefore, the puncture needle is convenient to puncture the liquid inlet pipe through the first clamping edge and the second clamping edge, and is clamped on the first side wing and the second side wing through the two clamping edges, so that the fixing head and the liquid inlet pipe are convenient to fix.

In some embodiments, the top end of the first clamping edge is provided with a first flanging edge, the top end of the second clamping edge is provided with a second flanging edge, and the distance between the first flanging edge and the second flanging edge is smaller than the distance between the outer side edge of the first side wing and the outer side edge of the second side wing. Therefore, by the aid of the two flanging edges, the fixing head is prevented from being separated from the liquid inlet pipe under the action of gravity of the second venous pot.

In some embodiments, the communication tube is an integral structure with the stationary head. Thus, the forming processing of the fixing head is facilitated.

In some embodiments, the fixing head is provided with a communication hole, one end of the puncture needle is fixed in the communication hole, the other end of the puncture needle corresponds to the liquid inlet pipe, and the puncture needle is communicated with the communication pipe through the communication hole. Therefore, the puncture needle is convenient to install and fix by the aid of the communication holes.

In some embodiments, the venous kettle for hemodialysis further comprises a sealing cover, and the bottom ends of the first liquid outlet pipe and the second liquid outlet pipe are respectively provided with a sealing cover. Therefore, the sealing cover is arranged and can be connected with the injector for use, so that when the second venous kettle needs to be started, physiological saline is conveniently pre-filled from the bottom end of the second liquid outlet pipe, and the exhaust in the pipe is realized; then the puncture needle performs the puncture action, and the second venous kettle is communicated for use.

In some embodiments, the fixing head further includes two pressing portions, which are respectively disposed below the first clamping edge and the second clamping edge. Therefore, the pressing part is arranged, so that an operator can conveniently act on the fixing head, and the operation is convenient.

In some embodiments, a venous pitcher for hemodialysis further comprises a first screen disposed within the first venous pitcher and a second screen disposed within the second venous pitcher. From this, through being equipped with first filter screen and second filter screen, can filter the thrombus in the blood way pipe, prevent that thrombus from flowing back to the patient in vivo, guaranteed patient's security of treatment.

Drawings

FIG. 1 is a schematic view showing the structure of a venous bottle for hemodialysis of the present utility model when used in combination.

Fig. 2 is a schematic view showing the structure of a second venous pot in the venous pot for hemodialysis of the present utility model.

Fig. 3 is a schematic view showing the structure of a first venous pot in a venous pot for hemodialysis according to the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

Reference is made to fig. 1 to 3. The utility model provides a venous kettle for hemodialysis, including first venous kettle 1 and second venous kettle 2, the one end of first venous kettle 1 is equipped with feed liquor pipe 3, the other end is equipped with first drain pipe 4, feed liquor pipe 3 and first drain pipe 4 all are linked together with first venous kettle 1, one side of first venous kettle 1 is located to second venous kettle 2, the one end of second venous kettle 2 is equipped with communicating pipe 5, the other end is equipped with second drain pipe 6, communicating pipe 5 and second drain pipe 6 all communicate with second venous kettle 2, the one end of communicating pipe 5 is equipped with pjncture needle 7, pjncture needle 7 can insert on feed liquor pipe 3, be linked together with feed liquor pipe 3, pjncture needle 7 is linked together with communicating pipe 5. The length of the second venous kettle 2 is smaller than that of the first venous kettle 1, so that consumable materials of the second venous kettle 2 can be reduced, and cost reduction is facilitated; meanwhile, before the second venous pot 2 is communicated with the liquid inlet pipe 3, physiological saline needs to be injected into the second venous pot 2 to discharge air, the volume of the second venous pot 2 is reduced, and the amount of the physiological saline can be reduced, so that liquid entering a patient is reduced, and the device is more suitable for treatment of hemodialysis patients.

In the use process, a switch clamp 20 is sleeved on the outer side of the liquid inlet pipe 3, and the switch clamp is a switch clamp commonly used on the existing infusion pipe; when the first venous pot 1 is blocked, a medical staff can close the switch clamp and puncture the liquid inlet pipe 3 through the puncture needle 7, so that blood in the liquid inlet pipe 3 is redirected to flow out of the second venous pot 2 through the puncture needle 7 and the communicating pipe 5 and flows back to the patient through the second liquid outlet pipe 6, the fluxion of a blood pipeline is ensured, the normal backflow of blood is ensured, and the blood waste is avoided. In actual operation, the bottom of first drain pipe 4 and second drain pipe 6 homoenergetic and connect the terminal intercommunication of the pjncture needle of human blood vessel, when making things convenient for first venous kettle 1 to take place to block, medical personnel separates first drain pipe 4 and the pjncture needle end of connecting human blood vessel, links to each other second drain pipe 6 and the pjncture needle end of connecting human blood vessel, realizes that blood is redirected to the human body through second venous kettle 2 backward flow.

The venous bottle for hemodialysis of the present utility model further comprises a puncture part 31 provided on the liquid inlet tube 3, and the puncture needle 7 can be inserted into the liquid inlet tube 3 by penetrating the puncture part 31. Through the puncture part 31, the medical staff can puncture the liquid inlet pipe 3 quickly and accurately through the puncture needle 7.

The venous bottle for hemodialysis further comprises a fixing head 8, a first side wing 32 and a second side wing 33 are respectively arranged on two sides of the puncture part 31, the fixing head 8 can be fixed on the first side wing 32 and the second side wing 33, the puncture needle 7 is arranged on the fixing head 8, and the fixing head 8 is connected with the communicating pipe 5.

When the second venous kettle 2 is used, the second venous kettle 2 can be fixed on a bracket clip fixed by the original first venous kettle 1, so that the second venous kettle 2 is convenient to monitor various data during use, and normal use is ensured; meanwhile, after the second venous kettle 2 is fixed, the gravity born by the communicating pipe 5 and the fixing head 8 can be reduced.

The fixing head 8 comprises a first clamping edge 81 and a second clamping edge 82, the first clamping edge 81 and the second clamping edge 82 are oppositely arranged, the first clamping edge 81 is clamped on the first side wing 32, and the second clamping edge 82 is clamped on the second side wing 33.

The top of the first clamping edge 81 is provided with a first flanging edge 83, the top of the second clamping edge 82 is provided with a second flanging edge 84, and the distance between the first flanging edge 83 and the second flanging edge 84 is smaller than the distance between the outer side edge of the first side wing 32 and the outer side edge of the second side wing 33. Thus, after the puncture needle 7 is inserted into the puncture part of the liquid inlet pipe 3, the fixing head 8 is fixed on the liquid inlet pipe 3, so that the puncture needle 7 and the liquid inlet pipe 3 are relatively fixed. When the fixing head 8 is fixed, the corresponding first side wing 32 and second side wing 33 on the liquid inlet pipe 3 are clamped between the first clamping edge 81 and the second clamping edge 82; meanwhile, the distance between the first turnup edge 83 and the second turnup edge 84 is smaller than the distance between the outer side edge of the first side wing 32 and the outer side edge of the second side wing 33, so that the first turnup edge 83 and the second turnup edge 84 can prevent the fixing head 8 from being separated from the liquid inlet pipe 3, and the combination stability of the fixing head 8 and the liquid inlet pipe 3 is ensured.

The communicating pipe 5 and the fixing head 8 are of an integral injection molding structure, so that the fixing head 8 is convenient to mold and process, and the fixing head 8 can be conveniently fixed on the liquid inlet pipe 3.

The fixing head 8 is provided with a communication hole 85, one end of the puncture needle 7 is fixed in the communication hole 85, the other end corresponds to the liquid inlet pipe 3, and the puncture needle 7 is communicated with the communication pipe 5 through the communication hole 85. The communicating hole 85 is formed in the fixing head 8 in an injection molding mode, the fixing of the puncture needle 7 is facilitated, the puncture needle 7 is conveniently communicated with the communicating pipe 5 through the communicating hole 85, and the normal flow of blood is guaranteed.

The venous kettle for hemodialysis further comprises a sealing cover 30, and sealing covers 30 are arranged at the bottom ends of the first liquid outlet pipe 4 and the second liquid outlet pipe 6. The sealing cover 30 is a plastic threaded cover, so that the sealing cover 30 is conveniently inserted into the bottom ends of the first liquid outlet pipe 4 and the second liquid outlet pipe 6 in a rotating mode, when the first venous kettle and the second venous kettle are not used, impurities such as outside air or dust are prevented from entering the first venous kettle and the second venous kettle, and the inside of the pipe is guaranteed to be in a sterile state.

The fixing head 8 further includes two pressing portions 86, and the two pressing portions 86 are respectively disposed below the first clamping edge 81 and the second clamping edge 82. By providing the pressing part 86, when the puncture needle 7 needs to puncture, an operator acts on the pressing part 86 to press the pressing part 86 inwards, so that the pressing part 86 is gradually stuck to the communicating pipe 5 inwards; when the pressing part 86 is pressed inwards, the first clamping edge 81 and the second clamping edge 82 are opened outwards, so that the puncture needle 7 can be fully exposed, puncture is facilitated, the puncture part is prevented from being polluted, and sterile puncture use of the puncture part is ensured; after the pressing part 86 is released, the first clamping edge 81 and the second clamping edge 82 are clamped on the first side wing 32 and the second side wing 33 through the first flanging edge 83 and the second flanging edge 84, so that the fixing of the fixing head 8 and the side wings on two sides is realized.

The venous kettle for hemodialysis further comprises a first filter screen 9 and a second filter screen 10, wherein the first filter screen 9 is arranged in the first venous kettle 1, and the second filter screen 10 is arranged in the second venous kettle 2.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which fall within the scope of the present utility model.

Claims

1. The venous kettle for hemodialysis is characterized by comprising a first venous kettle (1) and a second venous kettle (2), wherein a liquid inlet pipe (3) is arranged at one end of the first venous kettle (1), a first liquid outlet pipe (4) is arranged at the other end of the first venous kettle, the liquid inlet pipe (3) and the first liquid outlet pipe (4) are both communicated with the first venous kettle (1), the second venous kettle (2) is arranged at one side of the first venous kettle (1), a communicating pipe (5) is arranged at one end of the second venous kettle (2), a second liquid outlet pipe (6) is arranged at the other end of the second venous kettle, the communicating pipe (5) and the second liquid outlet pipe (6) are both communicated with the second venous kettle (2), a puncture needle (7) is arranged at one end of the communicating pipe (5), the puncture needle (7) can be inserted into the liquid inlet pipe (3) and is communicated with the liquid inlet pipe (3), the puncture needle (7) is communicated with the communicating pipe (5), and the length of the second venous kettle (2) is smaller than the length of the first venous kettle (1).

The device also comprises a liquid inlet pipe (3) provided with a puncture part (31), wherein the puncture needle (7) can puncture the puncture part (31) and is inserted into the liquid inlet pipe (3);

the puncture device is characterized by further comprising a fixing head (8), wherein a first side wing (32) and a second side wing (33) are respectively arranged on two sides of the puncture part (31), the fixing head (8) can be fixed on the first side wing (32) and the second side wing (33), the puncture needle (7) is arranged on the fixing head (8), and the fixing head (8) is connected with the communicating pipe (5).

2. The venous kettle for hemodialysis according to claim 1, wherein the fixing head (8) comprises a first clamping edge (81) and a second clamping edge (82), the first clamping edge (81) and the second clamping edge (82) are oppositely arranged, the first clamping edge (81) is clamped on the first side wing (32), and the second clamping edge (82) is clamped on the second side wing (33).

3. The venous kettle for hemodialysis according to claim 2, wherein a first turning edge (83) is arranged at the top end of the first clamping edge (81), a second turning edge (84) is arranged at the top end of the second clamping edge (82), and the distance between the first turning edge (83) and the second turning edge (84) is smaller than the distance between the outer side edge of the first side wing (32) and the outer side edge of the second side wing (33).

4. A venous pot for hemodialysis according to claim 3, characterized in that said communication tube (5) is of integral structure with the fixed head (8).

5. The venous pot for hemodialysis according to claim 4, characterized in that a communication hole (85) is formed in the fixing head (8), one end of the puncture needle (7) is fixed in the communication hole (85), the other end of the puncture needle corresponds to the liquid inlet pipe (3), and the puncture needle (7) is communicated with the communication pipe (5) through the communication hole (85).

6. The venous kettle for hemodialysis according to any one of claims 1 to 5, further comprising a sealing cover (30), wherein the sealing cover (30) is arranged at the bottom ends of the first liquid outlet pipe (4) and the second liquid outlet pipe (6).

7. The venous pot for hemodialysis according to claim 6, wherein the fixing head (8) further comprises two pressing parts (86), and the two pressing parts (86) are respectively arranged below the first clamping edge (81) and the second clamping edge (82).

8. A venous pot for hemodialysis according to claim 1, characterized by further comprising a first screen (9) and a second screen (10), said first screen (9) being provided in the first venous pot (1) and said second screen (10) being provided in the second venous pot (2).