CN115006685B

CN115006685B - Aortic perfusion tube capable of preventing blood loss

Info

Publication number: CN115006685B
Application number: CN202210408983.7A
Authority: CN
Inventors: 彭博
Original assignee: Fuwai Hospital of CAMS and PUMC
Current assignee: Fuwai Hospital of CAMS and PUMC
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2023-06-02
Anticipated expiration: 2042-04-19
Also published as: CN115006685A

Abstract

The invention relates to the field of cardiovascular medical treatment, and particularly discloses an aortic perfusion tube for preventing blood loss, which comprises a tube body with a hollow structure, wherein a side hole is formed in the tube body; the pipe body is connected with a baffle and a driving piece which is connected with the baffle and is used for driving the baffle to move along the axial direction of the pipe body, the baffle is correspondingly arranged with the side hole and is used for closing the corresponding side hole, and the driving piece extends to the distal end of the pipe body; the driving piece is of a hard wire structure; the pipe wall of the pipe body is provided with a wire passing hole channel for accommodating the driving piece, the wire passing hole channel is axially arranged along the pipe body and communicated with the sliding groove, and the driving piece penetrates into the sliding groove and is fixedly connected with the baffle plate. The invention can effectively prevent blood from flowing out of the side hole in the tube drawing process, and avoid the blood loss and the pollution of an operation area.

Description

Aortic perfusion tube capable of preventing blood loss

Technical Field

The invention relates to the field of cardiovascular medical treatment, in particular to an aortic perfusion tube for preventing blood loss.

Background

Extracorporeal circulation is a life support technology for draining the blood of the heart-returning vein to the outside of the body by using a series of special artificial devices, carrying out gas exchange, temperature adjustment and filtration by using an artificial method, and then returning the blood to an internal arterial system, and is also a basis for cardiovascular surgery and ECMO application, wherein an aortic perfusion tube (also called an aortic cannula) is required to be used; aortic perfusion tubes generally comprise a tube body and a tube core; the inside of the tube body is hollow, and both ends of the tube body are provided with openings, wherein one opening is used for blood inflow (the opening is connected with a perfusion machine), and the other opening is used for blood outflow (the opening stretches into a blood vessel); the tube core can be placed in the tube body, so that the tube core is convenient to insert into a blood vessel, and the tube core is withdrawn during perfusion; in the prior art, besides the opening at the tail end of the tube body, a side hole structure is arranged in order to improve blood supply of viscera (or achieve other purposes).

For example, patent CN206688000U discloses a femoral artery cannula branched from the distal end, comprising a tube body, the tube body comprises a liquid output end for being inserted into a femoral artery of a human body, and on the tube body, a drainage hole is arranged on the side surface of the liquid output end of the tube body; the side of the liquid output end of the femoral artery cannula is provided with a dredging hole, when the femoral artery cannula is inserted into a human body in use, blood enters from the liquid input end of the femoral artery cannula and is output from the liquid output end to the front end of the femoral artery, and in the process, the blood can flow into the rear end of the femoral artery through the dredging hole.

For another example, patent CN210228857U discloses a femoral artery perfusion cannula, which comprises a first perfusion tube and a second perfusion tube which are horizontally placed, wherein the inner diameter of the first perfusion tube is larger than that of the second perfusion tube, a plurality of side holes uniformly distributed along the circumferential direction are formed on the left outer edge surface of the first perfusion tube and the right outer edge surface of the second perfusion tube, and connecting pipes communicated with the inside of the right side of the first perfusion tube and the left side of the second perfusion tube are respectively arranged on the right side of the first perfusion tube and the left side of the second perfusion tube; the device is provided with a first perfusion tube and a second perfusion tube, simultaneously and bidirectionally perfuses the distal end and the proximal end, is provided with a plurality of side holes, and can effectively perfuse the side branch vessels of multiple arteries and improve the perfusion effect.

However, the arrangement of the side hole structure also brings inconvenience in use; because the tube body is filled with blood, the blood flows out of the side hole in the tube drawing process, so that the blood is lost, and when the pressure in the artery is high, the blood is sprayed out of the side hole at high speed, so that the pollution accident of an operation area is caused; the longer the tube body, the greater the number of side holes, the more prominent this is.

The technical problems described above need to be solved.

Disclosure of Invention

Therefore, the invention aims to provide the aortic perfusion tube for preventing blood loss, which can effectively prevent blood from flowing out of the side hole in the tube drawing process and avoid blood loss and pollution to an operation area.

In order to achieve the above purpose, the invention provides an aortic perfusion tube for preventing blood loss, which comprises a tube body with a hollow structure, wherein the tube body is provided with a side hole; the pipe body is connected with a baffle and a driving piece which is connected with the baffle and is used for driving the baffle to move along the axial direction of the pipe body, the baffle is correspondingly arranged with the side hole and is used for sealing the corresponding side hole, and the driving piece extends to the distal end of the pipe body.

As a further improvement to the technical scheme of the invention, at least two side holes are formed in the pipe body, and the opening directions of the side holes are the same.

As a further improvement on the technical scheme of the invention, the length of the pipe body is more than 45cm.

As a further improvement on the technical scheme of the invention, the baffle plate is positioned in front of the corresponding side hole.

As a further improvement to the technical scheme of the invention, a chute is arranged at the position corresponding to the side hole in the pipe wall of the pipe body, and the chute is communicated with the corresponding side hole; the baffle is arranged in the chute in a sliding way.

As a further improvement to the technical scheme of the invention, the driving piece is of a hard wire structure; the pipe wall of the pipe body is provided with a wire passing hole channel for accommodating the driving piece, the wire passing hole channel is axially arranged along the pipe body and is communicated with the sliding groove, and the driving piece penetrates into the sliding groove and is fixedly connected with the baffle plate.

As a further improvement of the technical scheme of the invention, the driving piece is made of steel wires.

As a further improvement to the technical scheme of the invention, the inlet of the wire passing duct is arranged at the distal end of the tube body, and the part of the driving piece positioned outside the inlet of the wire passing duct is connected with an operating handle.

As a further improvement to the technical scheme of the invention, the pipe wall of the pipe body is provided with two parallel wire passing pore canals, the two driving parts are connected with the upper end and the lower end of the same baffle plate through the corresponding wire passing pore canals, and the outer ends of the two driving parts are connected with the same operation handle.

As a further improvement to the technical scheme of the invention, the sliding chute is of an arc-shaped groove structure, and the baffle is of an arc-shaped structure.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the aortic perfusion tube for preventing blood loss, provided by the invention, through the arrangement of the side plates and the driving part, in the blood perfusion stage, the baffle is far away from the corresponding side hole, the side hole is completely opened, and blood can form a side flow through the side hole for use by the corresponding viscera; when the sidestream flow is required to be regulated, medical staff can provide pushing force or pulling force for the baffle plate through the driving piece, the baffle plate moves along the axial direction of the tube body and partially closes the side hole, and the effective outflow surface of the side hole is regulated; in the tube drawing stage of blood perfusion completion, medical personnel drive the separation blade through the driving piece and completely seal the side opening to make the blood in the body unable follow the side opening outflow, effectively avoided blood loss and the pollution of operation district.

Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of a first use state of the present invention;

FIG. 2 is a schematic view of a second use state of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is a cross-sectional view B-B of FIG. 1;

fig. 5 is a cross-sectional view of fig. 1C-C.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.

Examples

As shown in fig. 1 to 5: the embodiment provides an aortic perfusion tube for preventing blood loss, which comprises a tube body 1 with a hollow structure, wherein a side hole 2 is formed in the tube body 1.

The structure of the tube body 1 can be the same as that of the existing aortic perfusion tube, and the tube body needs to be matched with a tube core in the inserting stage, which is well known to those skilled in the art, and is not repeated herein. The side holes 2 are used for blood to flow out for corresponding viscera, and the number and the positions of the side holes can be round holes, oval holes or other reasonable shapes according to the needs.

The length of the pipe body 1 can be determined according to the needs; in this embodiment, the length of the tube body 1 may be greater than 45cm, so as to extend from the femoral artery to the innominate artery of the patient, at this time, at least two side holes 2 may be formed on the tube body 1, and the opening directions of the side holes 2 are the same, that is, when the tube body 1 is in a straight tube state, the side holes 2 are arranged along the same straight line.

The aortic perfusion tube for preventing blood loss provided by the embodiment has the main improvement that: the pipe body 1 is connected with a baffle 3 and a driving piece 4 connected with the baffle 3 and used for driving the baffle 3 to axially move along the pipe body 1, the baffle 3 is arranged corresponding to the side hole 2 and used for closing the corresponding side hole 2, and the driving piece 4 extends to the distal end of the pipe body 1 (in fig. 1, the distal end of the pipe body 1 is the right end and the proximal end is the left end).

The number of the baffle plates 3 can be the same as that of the side holes 2, and the baffle plates and the side holes are arranged in one-to-one correspondence; the shape of the baffle 3 is not limited as long as the baffle can completely close the side hole 2 after moving to a specific position; the baffle 3 can also adjust the opening degree of the side hole 2 by axially moving the baffle 3 along the tube body 1, thereby changing the flow of the blood vessel side flow; the baffle 3 can be arranged on the outer wall, the inner wall or between the outer wall and the inner wall of the pipe body 1 in a sliding way; the driving member 4 may provide a pushing force or a pulling force to the blocking piece 3 such that the blocking piece 3 moves in the axial direction of the pipe body 1.

In the blood perfusion stage, the baffle 3 is far away from the corresponding side hole 2, the side hole 2 is completely opened (as shown in figure 1), and blood can form a sidestream through the side hole 2 for the corresponding viscera; when the sidestream flow is required to be regulated, medical staff can provide pushing force or pulling force for the baffle plate 3 through the driving piece 4, the baffle plate 3 moves along the axial direction of the tube body 1 and partially seals the side hole 2, and the effective outflow surface of the side hole 2 is regulated; in the tube drawing stage of blood perfusion completion, medical personnel drive the separation blade 3 to completely seal the side hole 2 through the driving piece 4 (as shown in fig. 2), so that the blood in the tube body 1 can not flow out from the side hole 2, and the blood loss (namely the loss of the blood from the side hole 2 in the tube drawing stage in the application) and the pollution to an operation area are effectively avoided.

In this embodiment, preferably, the baffle 3 is located in front of the corresponding side hole 2 (i.e. the side hole 2 is biased towards one of the proximal ends of the tube body 1); at this time, the pulling force towards the distal end of the pipe body 1 is provided for the baffle 3 through the driving piece 4, so that the movement of the baffle 3 can be controlled, the control is convenient, and the driving piece 4 can use a simpler stay wire structure, so that the production cost is effectively reduced.

In this embodiment, a chute 5 is disposed in the pipe wall of the pipe body 1 at a position corresponding to the side hole 2, and the chute 5 is communicated with the corresponding side hole 2; the baffle 3 is arranged in the chute 5 in a sliding way. The sliding chute 5 can accommodate the baffle 3 and the side hole 2, and the axial length of the sliding chute 5 is larger than the sum of the axial lengths of the baffle 3 and the side hole 2; as shown in fig. 3 and fig. 4, the chute 5 has an arc-shaped chute structure, and the baffle 3 has an arc-shaped structure; the baffle 3 may be made of a flexible material (e.g. medical rubber) and may be held in the chute 5 by blood pressure during use, thereby providing a seal against the side aperture 2.

In this embodiment, the driving member 4 is of a hard-wire structure, and of course has a certain bending characteristic, so as to bend along with the bending of the tube 1; preferably, the driving member 4 is made of steel wire; the pipe wall of the pipe body 1 is provided with a wire passing hole channel 6 for accommodating the driving piece 4, the wire passing hole channel 6 is axially arranged along the pipe body 1 and is communicated with the sliding groove 5, and the adjacent sliding grooves 5 are communicated through the wire passing hole channel 6; the driving piece 4 penetrates into the sliding groove 5 and is fixedly connected with the corresponding baffle 3. The aperture of the wire passing hole 6 is slightly larger than the diameter of the driving piece 4, so that the driving piece 4 can move in the wire passing hole 6 when being subjected to pushing or pulling force; along the direction from the proximal end to the distal end of the tube body 1, the driving member 4 is sequentially and fixedly connected with each baffle 3 (for example, a connection mode such as gluing, sewing and the like can be adopted), and each baffle 3 is arranged in a linkage way.

In this embodiment, the inlet of the wire passing duct 6 is disposed at the distal end of the tube body 1, and the portion of the driving member 4 located outside the inlet of the wire passing duct 6 is connected with an operating handle 7; the operation handle 7 can be, for example, a triangular, square or trapezoid hard plastic sheet, and the surface of the operation handle can be provided with anti-skid patterns, so that the operation by a user is facilitated.

In this embodiment, preferably, two parallel wire passing holes 6 are provided in the wall of the pipe body 1, the two driving members 4 are respectively connected to the upper and lower ends of the same baffle 3 through the corresponding wire passing holes 6, and the outer ends (i.e., the right ends) of the two driving members 4 are connected to the same operating handle 7; as shown in fig. 1 and fig. 2, the two wire through holes 6 are respectively located at the upper side and the lower side of the pipe body 1, so that the two driving parts 4 can act on the baffle 3 at the same time, thereby increasing the acting force on the baffle 3 and ensuring the effective displacement of the baffle 3.

The foregoing is merely exemplary embodiments of the present invention, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. An aortic perfusion tube for preventing blood loss comprises a tube body with a hollow structure, wherein a side hole is formed in the tube body; the method is characterized in that:

the pipe body is connected with a baffle and a driving piece which is connected with the baffle and is used for driving the baffle to move along the axial direction of the pipe body, the baffle is correspondingly arranged with the side hole and is used for closing the corresponding side hole, and the driving piece extends to the distal end of the pipe body;

a sliding groove is arranged in the pipe wall of the pipe body at a position corresponding to the side hole, and the sliding groove is communicated with the corresponding side hole; the baffle is arranged in the chute in a sliding way; the driving piece is of a hard wire structure; the pipe wall of the pipe body is provided with a wire passing hole channel for accommodating a driving piece, the wire passing hole channel is axially arranged along the pipe body and communicated with the sliding groove, and the driving piece penetrates into the sliding groove and is fixedly connected with the baffle plate; the pipe wall of the pipe body is provided with two parallel wire passing pore canals, the two driving parts are respectively connected with the upper end and the lower end of the same baffle plate through the corresponding wire passing pore canals, and the outer ends of the two driving parts are connected with the same operation handle;

in the blood perfusion stage, the baffle is far away from the corresponding side hole, the side hole is completely opened, and blood passes through the side hole to form a lateral flow for the corresponding viscera; when the sidestream flow is required to be regulated, the driving piece provides pushing force or pulling force for the baffle plate, and the baffle plate moves along the axial direction of the pipe body and partially seals the side hole so as to regulate the effective outflow surface of the side hole; in the tube drawing stage of blood perfusion completion, the baffle plate is driven by the driving piece to completely seal the side hole, so that the blood in the tube body cannot flow out of the side hole.

2. An anti-blood loss aortic perfusion tube according to claim 1, wherein:

at least two side holes are formed in the pipe body, and the opening directions of the side holes are the same.

3. An anti-blood loss aortic perfusion tube according to claim 1, wherein:

the length of the tube body is more than 45cm.

4. A blood loss prevention aortic perfusion tube according to any one of claims 1 to 3, wherein:

the baffle is positioned in front of the corresponding side hole.

5. An anti-blood loss aortic perfusion tube according to claim 1, wherein:

the driving piece is made of steel wires.

6. An anti-blood loss aortic perfusion tube according to claim 1, wherein:

the inlet of the wire passing duct is arranged at the distal end of the tube body, and the part of the driving piece positioned outside the inlet of the wire passing duct is connected with an operating handle.

7. An anti-blood loss aortic perfusion tube according to claim 1, wherein:

the chute is of an arc-shaped chute structure, and the baffle is of an arc-shaped sheet structure.