CN219001336U - Auxiliary blood drawing device - Google Patents

Abstract

The utility model provides an auxiliary blood drawing device which comprises a suction tube body, wherein the suction tube body is provided with a placement surface matched with the surface of tissue to be sucked, the suction tube body is provided with a suction port, the suction port is positioned on a wall body outside a wall body corresponding to the placement surface of the suction tube body, and the suction tube body can be communicated with negative pressure equipment. The suction port is arranged on the wall body outside the wall body corresponding to the placement surface of the suction tube body, so that the suction port is not opposite to the incision position of the tissue to be sucked, the negative pressure in the blood suction process is effectively prevented from acting on the incision position for a long time, and the suturing of the incision is facilitated.

Description

Auxiliary blood pumping device

technical field

The utility model belongs to the technical field of medical device design, in particular to an auxiliary blood drawing device.

Background technique

In endoscopic surgery, the puncture device is first inserted into the human body cavity, and then various surgical instruments enter the human body through the puncture device to perform operations on the lesions in the human body. In this process, due to the cutting of instruments such as ultrasonic knife, blood will accumulate on the surface of internal organs such as internal organs. The existing solution is to use a thin catheter connected to a negative pressure device to enter the human body from the puncture device for extraction, but the catheter directly acts on the blood. While suctioning accumulated blood on the surface of the internal tissue of the human body, it will continue to cause negative pressure on the tissue, which will affect the suturing of the incision.

Utility model content

Therefore, the technical problem to be solved by the utility model is to provide an auxiliary blood pumping device to overcome the negative pressure suction catheter in the prior art that directly acts on the surface of the internal tissue of the human body to suck the accumulated blood while causing damage to the corresponding tissue. Negative pressure, which affects the lack of incision suturing.

In order to solve the above problems, the utility model provides an auxiliary blood pumping device, which includes a suction tube body, the suction tube body has a placement surface that matches the surface of the tissue to be sucked, and the suction tube body has a suction A suction port, the suction port is located on a wall other than the wall corresponding to the placement surface of the suction pipe body, and the suction pipe body can communicate with negative pressure equipment.

In some embodiments, the suction pipe body extends along a preset arc direction, the suction port is located on the inner arc side of the suction pipe body, and the suction port has multiple, multiple The suction ports are arranged at intervals along the extending direction of the suction pipe body.

In some embodiments, the suction tube body is curved.

In some embodiments, the suction pipe body is ring-shaped, the suction port is located inside the ring-shaped inner side of the suction pipe body, and there are multiple suction ports, and the multiple suction ports are along the The extension directions of the rings are arranged at intervals.

In some embodiments, the suction pipe body extends along a straight line and has two suction pipe bodies. The first ends of the two suction pipe bodies are respectively hinged, and the two suction pipe bodies can be driven around the hinged position. Opening and closing, the suction port is located on the opposite sides of the two suction pipes.

In some embodiments, a liquid-blocking section is connected between the second ends of the two suction pipes; and/or, each of the suction pipes has a plurality of suction ports. The suction ports are arranged at intervals along the length direction of the corresponding suction pipe body.

In some embodiments, the liquid blocking section is a film.

In some embodiments, the auxiliary blood pumping device further includes a hard handle tube, one end of the hard handle tube communicates with the flow channel in the suction tube body, and the other end of the hard handle tube It communicates with the negative pressure equipment; and/or, the suction pipe body is made of silica gel or medical PVC material.

In some embodiments, the one end of the rigid handle tube communicates with the suction tube body through a deformable tube.

In some embodiments, the deformable tube is a bellows.

In the auxiliary blood pumping device provided by the utility model, the suction port is arranged on the wall other than the wall body corresponding to the placement surface of the suction tube body, so that it is no longer directly opposite to the incision position of the tissue to be sucked. , effectively prevent the negative pressure from acting on the incision position for a long time during the blood suction process, which is beneficial to the suturing of the incision. In a specific embodiment, the opening of the suction port is roughly parallel to the surface skin of the tissue to be sucked, which can prevent direct negative pressure on the incision while taking into account the blood suction efficiency.

Description of drawings

Fig. 1 is a schematic structural view of the auxiliary blood drawing device in use according to the first embodiment of the present invention;

Fig. 2 is a schematic structural view of the deformable tube of the auxiliary blood pumping device in Fig. 1 being deflected at a certain angle;

3 is a schematic structural view of the auxiliary blood drawing device in use according to the second embodiment of the present invention;

Fig. 4 is a schematic structural view of the auxiliary blood drawing device in use according to the third embodiment of the present invention;

Fig. 5 is a schematic structural view of the auxiliary blood drawing device in an unused state according to the third embodiment of the present invention.

The reference signs are indicated as:

1. Suction tube body; 11. Suction port; 12. Liquid blocking section; 2. Hard handle tube; 3. Deformable tube; 4. Opening and closing control line; 5. Rotating shaft.

Detailed ways

Referring to Fig. 1 to Fig. 5, according to an embodiment of the present invention, an auxiliary blood pumping device is provided, which is especially suitable for endoscopic surgery, including a suction tube body 1, which has a The placement surface matched with the surface of the suction tissue, the placement surface is specifically the contact surface of the auxiliary blood drawing device in use and the surface of the tissue to be sucked. It can be understood that the placement surface should ensure that the auxiliary blood drawing device is in use. The position is stable and reliable. The suction pipe body 1 has a suction port 11. The suction port 11 is located on a wall other than the wall corresponding to the placement surface of the suction pipe body 1. The suction pipe body 1 can It communicates with a negative pressure device (such as a negative pressure machine, not shown in the figure). In this technical solution, the suction port 11 is arranged on the wall other than the wall body corresponding to the placement surface of the suction tube body 1, so that it is no longer directly opposite to the incision position of the tissue to be sucked, effectively preventing blood from being sucked out. The negative pressure in the suction process acts on the incision for a long time, which is beneficial to the suturing of the incision. In a specific embodiment, the opening of the suction port 11 is roughly parallel to the surface skin of the tissue to be sucked, which can prevent direct negative pressure on the incision while taking into account the blood suction efficiency.

In some embodiments, the suction pipe body 1 extends along a predetermined arc direction, the suction port 11 is located on the inner arc side of the suction pipe body 1, and there are multiple suction ports 11, and the plurality of suction ports 11 Arranged at intervals along the extending direction of the suction pipe body 1, as shown in Figure 1, the suction pipe body 1 is in a curved shape, that is, the suction pipe body 1 has two ends, and a gap is formed between the two ends , the suction tube body 1 of this structure can be straightened from the gap position when it is placed in the human body cavity, so as to facilitate its placement process in the human body cavity position, and at the same time, the arc-shaped extending suction tube The suction pipe body 1 can also form a certain range around the incision position, while ensuring the suction effect of blood (including blood mist), it can also form a containment of blood to a certain extent to ensure more thorough suction of accumulated blood.

As shown in Figure 3, in another feasible embodiment, the suction pipe body 1 is annular, the suction port 11 is located on the inner side of the suction pipe body 1, and the suction port 11 has multiple, multiple suction The mouths 11 are arranged at intervals along the extending direction of the ring. Although the ring-shaped suction tube 1 will bring certain disadvantages to its placement in the human body cavity, for example, a trocar with a larger passage diameter is required to ensure the suction. The tube body 1 enters smoothly, but it has more advantages in the treatment of human body surface wounds. Specifically, for example, its ring-shaped structure can completely surround the incision in its ring, and the generated blood is contained and sucked, 360° The suction effect is better.

As shown in Fig. 4 and Fig. 5, in another feasible implementation manner, the suction pipe body 1 extends along a straight line and has two, and the first ends (through the rotating shaft 5) of the two suction pipe bodies 1 are respectively hinged. , the two suction pipes 1 can be driven to open and close around the hinged position, and the suction port 11 is located on the opposite side of the two suction pipes 1 . This kind of suction tube body 1 that can be opened and closed is very suitable for the situation that needs to be placed in the human body cavity, especially in endoscopic surgery. During the placement process, the two suction tube bodies 1 are closed close to each other, such as As shown in Figure 5, it forms an inline structure, which is compact in structure and takes up little space. It can easily enter the human body cavity through the puncture device. After it is placed in the human body cavity, it controls the separation of the two suction tubes 1 from each other. When opened, as shown in Figure 4, a roughly herringbone structure is formed, and the two suction tubes 1 are respectively placed on both sides of the incision, forming a certain range around the incision to ensure the blood drawing effect. As a specific implementation, the first ends of the two suction tubes 1 form a reliable connection with the opening and closing control line, and when the auxiliary blood pumping device is placed at the target position, the opening and closing control line can be pulled to control The two suction tubes 1 are opened, and on the contrary, if the auxiliary blood pumping device needs to be taken out, the opening and closing control line is pushed forward to control the two suction tubes 1 to close.

In a better embodiment, a liquid blocking section 12 is connected between the second ends of the two suction pipes 1 respectively. The closure of 1 is stored, and it is tensioned following the opening of the two suction tubes 1. After tensioning, it forms a relatively closed triangular area with the two suction tubes 1, and fits in this triangular area to prevent cuts The turbulent flow of outflowing blood ensures the effect of blood drawing. Each suction tube body 1 has a plurality of suction ports 11, and the plurality of suction ports 11 are arranged at intervals along the length direction of the corresponding suction tube body 1, which can further ensure the effect of blood suction.

The auxiliary blood pumping device also includes a hard handle tube 2, one end of the hard handle tube 2 communicates with the flow channel in the suction tube body 1, and the other end of the hard handle tube 2 communicates with the negative pressure equipment. On the one hand, the tube 2 is used as a connecting part with the negative pressure equipment to ensure the convenience and reliability of the connection. On the other hand, it is also used as a hand-held end for the medical staff, so that the medical staff can send the whole device into the human body cavity through the trocar.

The suction tube body 1 is made of a material with certain flexibility such as silica gel or medical PVC material, so that it can be deformed to a certain extent in the process of passing through the puncture device, so as to facilitate the placement and withdrawal of the device. It can prevent possible damage to human tissue. In addition, the flexible material can also improve its fit with the surface of human tissue, so that the outflowing blood can be gathered at the incision for thorough suction and discharge.

In some embodiments, one end of the hard handle tube 2 communicates with the suction tube body 1 through a deformable tube 3, and the specific deformable tube 3 is a corrugated tube. The deformable tube 3 can be twisted to adjust the direction. After the device is delivered to the human body cavity, the puncture needle is also sent into the human body by the puncture device. The puncture needle can be used to squeeze the deformable tube 3 to adjust the orientation of the suction tube body 1 .

It should be noted that, compared with the existing blood drawing equipment, the auxiliary blood drawing device of the present utility model is smaller in size, flexible in operation and application, and more convenient for doctors to operate during surgery.

Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous modes can be freely combined and superimposed.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection. The above are only preferred embodiments of the present utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can also be made without departing from the technical principles of the present utility model. It should also be regarded as the protection scope of the present utility model.

Claims (10)

1. An auxiliary blood pumping device, characterized in that it comprises a suction tube body (1), the suction tube body (1) has a placement surface that matches the surface of the tissue to be sucked, and the suction tube body (1) has a suction port (11), the suction port (11) is located on a wall other than the wall corresponding to the placement surface of the suction pipe body (1), the suction The suction pipe body (1) can communicate with negative pressure equipment. 2. The auxiliary blood pumping device according to claim 1, characterized in that, the suction tube body (1) extends along a preset arc direction, and the suction port (11) is located in the suction tube The inner arc side of the body (1), and there are multiple suction ports (11), and the plurality of suction ports (11) are arranged at intervals along the extending direction of the suction pipe body (1). 3. The auxiliary blood pumping device according to claim 2, characterized in that, the suction tube body (1) is in a curved shape. 4. The auxiliary blood pumping device according to claim 1, characterized in that, the suction tube body (1) is ring-shaped, and the suction port (11) is located in the ring shape of the suction tube body (1) There are multiple suction ports (11) on the inner side, and the plurality of suction ports (11) are arranged at intervals along the extending direction of the ring. 5. The auxiliary blood pumping device according to claim 1, characterized in that, the suction tube body (1) extends along a straight line and has two, and the two suction tube bodies (1) respectively have the first One end is hinged, and the two suction pipes (1) can be driven to open and close around the hinged position, and the suction port (11) is located on the opposite side of the two suction pipes (1). physically. 6. The auxiliary blood pumping device according to claim 5, characterized in that, a liquid blocking section (12) is connected between the second ends of the two suction tubes (1); and/or, Each of the suction pipes (1) has a plurality of suction ports (11), and the plurality of suction ports (11) are spaced along the length direction of the corresponding suction pipe (1). set up. 7. The auxiliary blood pumping device according to claim 6, characterized in that, the liquid blocking section (12) is a thin film. 8. The auxiliary blood pumping device according to any one of claims 1 to 7, further comprising a hard handle tube (2), one end of the hard handle tube (2) is connected to the suction The flow channel in the tube body (1) is connected, and the other end of the hard handle tube (2) is connected to the negative pressure device; and/or, the suction tube body (1) is made of silica gel or medical PVC Material production. 9. The auxiliary blood pumping device according to claim 8, characterized in that, a deformable tube (3) passes between the one end of the hard handle tube (2) and the suction tube body (1) form a connection. 10. The auxiliary blood pumping device according to claim 9, characterized in that, the deformable tube (3) is a corrugated tube.

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