CN215135514U - Bidirectional perfusion arterial cannula - Google Patents

Abstract

The utility model provides a two-way perfusion artery cannula, relating to the field of medical equipment. A bi-directional perfusion arterial cannula comprising: the blood-stopping three-way tube comprises a three-way tube, a hemostasis mechanism arranged on the three-way tube and used for preventing blood from flowing out, a binding mechanism for binding two pipelines on the three-way tube, and a first guide wire movably arranged in the three-way tube, wherein the three-way tube is a hose. The utility model discloses a be provided with the three-way pipe to regard as the three-way pipe in the femoral artery intubate, can two-wayly carry out the blood transfusion, flow in femoral artery's nearly heart end and far heart end, can guarantee sufficient blood perfusion volume, can guarantee effectively that artery distal end tissue is normal, avoid its necrosis, thereby avoided the worse condition (amputation) to take place.

Description

Bidirectional perfusion arterial cannula

Technical Field

The utility model relates to the field of medical equipment, particularly, relate to a two-way artery intubate that fills.

Background

ECMO (extracorporeal membrane oxygenation) is an extracorporeal circulation technique that is removed from the heart surgery room. The principle is that the venous blood in the body is led out of the body, and is injected into the artery or vein system of a patient after being oxygenated by an artificial cardiopulmonary bypass made of special materials, so that the function of partial cardiopulmonary replacement is achieved, and the oxygenation blood supply of the visceral organs and tissues of the human body is maintained. When ECMO adopts a V-A mode to carry out peripheral blood vessel catheterization, femoral artery intubation is needed, a femoral artery or axillary artery intubation is needed to be used as an infusion tube, and a 12F-22F artery intubation is generally selected.

When the femoral artery cannula is inserted into a human body in use, blood enters from the liquid input section of the femoral artery cannula and is output to the proximal section of the femoral artery from the liquid output end, and in the process, the blood can flow into the distal section of the femoral artery through the gap between the outer wall of the cannula and the inner wall of the artery through the head opening. The inventor believes that the cannula with the larger inner diameter cannot be selected to ensure sufficient perfusion when the cannula is used specifically, because the cannula with the larger inner diameter can cause the clearance between the outer wall of the cannula and the inner wall of the artery to disappear, so that the reverse blood flow is interrupted, and the far end of the artery is subjected to ischemic necrosis and even amputation; in addition, when the cannula is used, a large amount of blood flows out of the part with the opening hole, and ischemia of a human body is caused. The arterial cannula applied worldwide all has the defect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way perfusion artery intubate, it has can guarantee sufficient blood perfusion volume, avoids the artery distal end to lack blood necrosis, can hemostatic advantage when using.

The embodiment of the utility model is realized like this:

the embodiment of the present application provides a two-way perfusion artery intubate, includes: the blood-stopping three-way tube comprises a three-way tube, a hemostasis mechanism arranged on the three-way tube and used for preventing blood from flowing out, a binding mechanism for binding two pipelines on the three-way tube, and a first guide wire movably arranged in the three-way tube, wherein the three-way tube is a hose.

In some embodiments of the present invention, a guiding mechanism is disposed in the three-way pipe.

The utility model discloses an in some embodiments, above-mentioned three-way pipe includes the input section, the linkage segment of being connected with the input section and the nearly heart section and the heart section of being connected with the linkage segment respectively, and wherein, input section, linkage segment, nearly heart section and heart section are the hose, and first seal wire activity sets up in input section, linkage segment and heart section far away, and guiding mechanism sets up in input section, linkage segment and nearly heart section.

In some embodiments of the present invention, the hemostatic mechanism includes a hemostatic cell fixed on the input section, and an inflation tube communicated with the hemostatic cell.

In some embodiments of the present invention, the hemostatic unit is made of an elastic material.

In some embodiments of the present invention, the binding mechanism includes two fixing rings fixed on the input section side wall and the proximal section side wall, respectively, and a binding wire surrounding the input section and the proximal section and passing through the two fixing rings.

In some embodiments of the present invention, the guiding mechanism includes a guiding channel disposed in the input section, the connecting section and the proximal section, and a second guide wire movably disposed in the guiding channel.

In some embodiments of the present invention, the second guide wire includes a flexible section located in the proximal section, and a rigid section connected to the flexible section.

In some embodiments of the present invention, an end surface of the telecentric section away from the connection section is inclined.

The utility model discloses an in some embodiments, the bore that linkage segment one end was kept away from to above-mentioned telecentric section is less than the bore that telecentric section and linkage segment are connected one end.

Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:

(1) the utility model discloses a be provided with the three-way pipe to regard as the three-way pipe in the femoral artery intubate, can two-wayly carry out the blood transfusion, flow in femoral artery's nearly heart end and far heart end, can guarantee sufficient blood perfusion volume, can guarantee effectively that artery distal end tissue is normal, avoid its necrosis, thereby avoided the worse condition (amputation) to take place.

(2) The utility model discloses an install hemostasis mechanism on the three-way pipe, specifically install the hemostasis ball in the input section, put into the femoral artery blood vessel with nearly heart section and telecentric segmentation after, aerify in to the hemostasis ball through the gas tube for the hemostasis ball inflates and expands, stops up trompil department, and then avoids the blood to flow out the human body, plays hemostatic effect.

(3) The utility model discloses an utilize and bind the device, install two solid fixed rings respectively on input section lateral wall and nearly heart section lateral wall to will bind the line around input section and nearly heart section round and bind input section and nearly heart section, when will the utility model discloses place in femoral artery, utilize and bind the line and tie up input section and nearly heart section tightly, through the trompil, put into femoral artery with far heart section and nearly heart section after, loosen and tie up the line, make nearly heart section stretch naturally, stretch to nearly heart section, thereby realized the insertion of three-way pipe; when the cannula needs to be pulled out, the binding wire is tightly bound, and the input section, the proximal section and the distal section are slowly and sequentially taken out, so that the condition that the open hole is too large in the operation process is avoided, and the body of a patient can be effectively protected.

(4) The utility model discloses a set up the three-way pipe and be the hose, can be leading-in and derive this use neotype time in needs, can conveniently adjust the three-way pipe, make things convenient for doctor's operation.

(5) The utility model discloses an it is provided with first seal wire to be movable in the tee bend pipe to set up first seal wire activity and set up in input section, linkage segment and telecentric's section, will when needing the utility model discloses during leading-in blood vessel, pass input section, linkage segment and telecentric's section with first seal wire in proper order earlier, lead into femoral artery's telecentric end along the blood vessel with first seal wire again, along with the moving direction of first seal wire, will the utility model discloses in leading-in femoral artery, convenient operation.

(6) The utility model discloses a be provided with guiding mechanism in the three-way pipe, put into femoral artery with far away heart section and nearly heart section in, loosen the binding wire after, along direction channel, pass input section, linkage segment and nearly heart section in proper order with the second seal wire, through the guide effect of second seal wire, in the nearly heart end of femoral artery is arranged in to nearly heart section accuracy, avoided nearly heart section position incorrect condition to take place, guaranteed the normal flow of blood, better for the femoral artery blood supply.

(7) The utility model discloses a set up that the second seal wire is located near heart section inside divide into flexible section, be connected with flexible section for the rigidity section, can effectively play the guide effect in, also avoided the second seal wire of near heart end near femoral artery too hard carelessly to puncture femoral artery's the condition emergence, can protect femoral artery near heart end effectively.

(8) The utility model discloses a set up one section of far away from linkage segment of heart section and be the slope form, the heart section far away of slope form is of value to and inserts in the femoral artery.

(9) The utility model discloses a setting up telecentric section and keeping away from the bore that linkage segment one end was kept away from to telecentric section, the telecentric section of minor bore is of value to and inserts in the femoral artery.

When the flexible femoral artery hemostatic balloon is actually used, only the femoral artery needs to be opened by using the puncture needle, the telecentric section, the connecting section, the proximal section and the input section are slowly and sequentially led into the femoral artery along the first guide wire direction, the binding wire is loosened, and meanwhile, the flexible section is placed into the guide channel along the directions of the input section, the connecting section and the proximal section, so that the flexible section penetrates out of the guide channel to drive the proximal section to be unfolded at the proximal end of the femoral artery, bidirectional blood transfusion is facilitated, and the hemostatic balloon in the femoral artery is inflated by the inflation tube to block an opening; will the utility model discloses when taking out, will tie up the line and tie up tightly, derive input section, nearly heart section and far away heart section in proper order.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a two-way perfusion arterial cannula according to an embodiment of the present invention;

fig. 2 is a schematic view of the deployment of a bidirectional perfusion arterial cannula according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating the tightening of the bidirectional perfusion arterial cannula according to the embodiment of the present invention;

fig. 4 is a schematic sectional view of a bidirectional perfusion arterial cannula according to an embodiment of the present invention.

Icon: 1-a three-way pipe; 2-a first guide wire; 3-an input section; 4-a connecting segment; 5-proximal segment; 6-telecentric section; 7-stopping blood cells; 8-an inflation tube; 9-a fixing ring; 10-binding wires; 11-a guide channel; 12-a second guidewire; 13-a flexible section; 14-rigid section.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that if the directions or positional relationships indicated by the terms "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when using, the description is only for convenience of description and simplification of the present invention, and it is not intended to indicate or imply that the device or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Referring to fig. 1-4, fig. 1 is a schematic view illustrating the deployment of a bidirectional perfusion arterial cannula according to an embodiment of the present invention; fig. 2 is a schematic view showing the deployment of a bidirectional perfusion arterial cannula according to an embodiment of the present invention; fig. 3 is a schematic view illustrating the tightening of the two-way perfusion arterial cannula according to the embodiment of the present invention; fig. 4 is a schematic sectional view of a bidirectional perfusion arterial cannula according to an embodiment of the present invention.

The present embodiment provides a bidirectional perfusion arterial cannula, as shown in fig. 3, including: the blood-stopping three-way tube comprises a three-way tube 1, a hemostasis mechanism which is arranged on the three-way tube 1 and used for preventing blood from flowing out, a binding mechanism for binding two pipelines on the three-way tube 1, and a first guide wire 2 which is movably arranged in the three-way tube 1, wherein the three-way tube is a hose.

In the above embodiment, one end of the three-way pipe 1 is used for accessing blood, and the other two ends are respectively used for blood transfusion to the proximal end and the distal end of the femoral artery, so that sufficient blood perfusion can be ensured, the tissue at the distal end of the artery can be effectively ensured to be normal, and necrosis of the tissue can be avoided, thereby avoiding worse conditions (amputation), and the three-way pipe 1 is a hose, so that the three-way pipe 1 can be conveniently adjusted when the novel usage needs to be guided in and out, and the operation of a doctor is facilitated; the hemostasis mechanism is used for inflating or flushing liquid into the three-way pipe 1 after the three-way pipe is placed into the femoral artery, expanding the three-way pipe, and blocking the femoral artery opening from the interior of the femoral artery, so that hemostasis can be effectively realized; the binding mechanism is used for binding one end of the three-way pipe 1, which is connected with blood, and one end, which is used for transfusing blood to the proximal end of the femoral artery, of the three-way pipe 1, so that the obstruction can be reduced when the utility model is led into the femoral artery, and after the three-way pipe is placed into the femoral artery, the binding mechanism is loosened, so that the three-way pipe 1 is loosened, and the transfusion to the proximal end of the femoral artery is facilitated; first seal wire 2 slides and sets up in three-way pipe 1, can be in needs will the utility model discloses during leading-in blood vessel, earlier with first seal wire 2 three-way pipe 1, with first seal wire 2 along the far away heart of blood vessel guide femoral artery again, along with first seal wire 2's direction of movement, will the utility model discloses in leading-in femoral artery, convenient operation.

In some embodiments of the present invention, as shown in fig. 4, a guiding mechanism is provided in the three-way pipe 1.

In the above embodiment, the guiding mechanism can guide the end of the three-way pipe 1 for proximal end blood transfusion of femoral artery, so as to avoid the end from being blocked, and better realize blood transfusion.

In some embodiments of the present invention, as shown in fig. 1, fig. 3 and fig. 4, the three-way pipe 1 includes an input section 3, a connecting section 4 connected with the input section 3, and a proximal section 5 and a distal section 6 respectively connected with the connecting section 4, wherein the input section 3, the connecting section 4, the proximal section 5 and the distal section 6 are hoses, the first guide wire 2 is movably disposed in the input section 3, the connecting section 4 and the distal section 6, and the guiding mechanism is disposed in the input section 3, the connecting section 4 and the proximal section 5.

In the above embodiment, the input section 3 is used for inputting blood, and is connected with the connecting section 4, which is a flexible tube and can be bent; the connecting section 4 is respectively communicated with the input section 3, the proximal section 5 and the distal section 6 and is used for respectively inputting blood into the proximal end and the distal end of the femoral artery; the proximal section 5 is used for inputting blood into the proximal end of the femoral artery, and the guide mechanism is arranged in the input section 3, the connecting section 4 and the proximal section 5 and guides the proximal section 5 arranged in the femoral artery, so that blood is conveniently supplied to the proximal end of the femoral artery, and blood supply is ensured; telecentric section 6 is used for inputing blood into femoral artery's telecentric end, and the activity of first seal wire 2 sets up in input section 3, linkage segment 4 and telecentric section 6, does the utility model discloses lead to in leading into femoral artery blood vessel.

In some embodiments of the present invention, as shown in fig. 1-3, the hemostatic mechanism includes a hemostatic ball 7 secured to the input section 3, and an inflation tube 8 in communication with the hemostatic ball 7.

In the above embodiment, the hemostatic ball 7 is installed on the input section 3, preferably at a position close to the connecting section 4, and is used for inflating/deflating/liquid, when hemostasis is required, inflating air/liquid, and when export and import of the present invention are required, deflating air/liquid; the air inflation tube 8 is communicated with the hemostatic ball 7, and is a hose for inflating/inflating and deflating the hemostatic ball 7.

In some embodiments of the present invention, as shown in fig. 1-4, the hemostatic ball 7 is made of an elastic material.

In the above embodiment, the hemostatic ball 7 is made of elastic material, and can be adjusted in size according to the content of gas/liquid therein, so as to better stop bleeding.

In some embodiments of the present invention, as shown in fig. 1-4, the binding mechanism includes two fixing rings 9 fixed on the side wall of the input section 3 and the side wall of the proximal section 5, respectively, and a binding wire 10 surrounding the input section 3 and the proximal section 5 and passing through the two fixing rings 9.

In the above embodiment, the number of the fixing rings 9 is two, and the fixing rings are respectively fixed on the side wall of the input section 3 and the side wall of the proximal section 5, and are used for helping the binding wire 10 to bind the input section 3 and the proximal section 5; the binding wire 10 binds the input section 3 and the proximal section 5 around the input section 3 and the proximal section 5, when the utility model is placed in the femoral artery, the input section 3 and the proximal section 5 are tightly bound by the binding wire 10, and after the distal section 6 and the proximal section 5 are placed in the femoral artery through the opening, the binding wire 10 is loosened to naturally stretch the proximal section 5 to the proximal section 5, thereby realizing the insertion of the three-way pipe 1; when the cannula needs to be pulled out, the binding wire 10 is tightly bound, and the input section 3, the proximal section 5 and the distal section 6 are slowly and sequentially taken out, so that the phenomenon that the open hole is too large in the operation process is avoided, and the body of a patient can be effectively protected.

In some embodiments of the present invention, as shown in fig. 1-4, the guiding mechanism includes a guiding channel 11 disposed in the input section 3, the connecting section 4 and the proximal section 5, and a second guide wire 12 movably disposed in the guiding channel 11.

In the above embodiment, the guide channel 11 is provided in the input section 3, the connecting section 4 and the proximal section 5 for moving the second guide wire 12; the second guide wire 12 is used for guiding the proximal segment 5, the distal segment 6 and the proximal segment 5 are placed in the femoral artery, the binding wire 10 is loosened, the second guide wire 12 sequentially penetrates through the input segment 3, the connecting segment 4 and the proximal segment 5 along the guide channel 11, the proximal segment 5 is accurately placed in the proximal end of the femoral artery under the guide effect of the second guide wire 12, the situation that the proximal segment 5 is incorrect in position is avoided, normal flow of blood is guaranteed, and blood supply for the femoral artery is better.

In some embodiments of the present invention, as shown in fig. 4, the second guidewire 12 includes a flexible section 13 located within the proximal section 5, and a rigid section 14 connected to the flexible section 13.

In the above embodiment, the flexible section 13 is located in the proximal section 5, and the proximal section 5 extends outward, and is made of a soft material, so that the situation that the femoral artery is accidentally punctured due to the fact that the second guide wire 12 close to the proximal end of the femoral artery is too hard can be avoided while the guiding effect is effectively achieved, and the proximal end of the femoral artery can be effectively protected; the rigid section 14 is connected with the flexible section 13, is positioned in the guide channel 11, is made of hard material, can be well pushed into the guide channel 11, has a certain bending coefficient, and can move in a blood vessel without being broken.

In some embodiments of the present invention, as shown in fig. 1, a section of the telecentric section 6 away from the connecting section 4 is inclined.

In the above embodiment, the inclined distal section 6 is advantageous for insertion into the femoral artery by providing the distal section 6 with an end surface distal to the connecting section 4 that is inclined.

In some embodiments of the present invention, as shown in fig. 2, the diameter of the telecentric section 6 away from the connecting section 4 is smaller than the diameter of the telecentric section 6 away from the connecting section 4.

In the above embodiment, the small diameter distal section 6 is beneficial for insertion into the femoral artery by providing that the diameter of the distal section 6 distal to the connecting section 4 is smaller than the diameter of the distal section 6 connecting to the connecting section 4.

In practical use, only the femoral artery needs to be opened by using a puncture needle, the telecentric section 6, the connecting section 4, the proximal section 5 and the input section 3 are slowly and sequentially led into the femoral artery along the direction of the first guide wire 2, the binding wire 10 is loosened, and the flexible section 13 is placed into the guide channel 11 along the directions of the input section 3, the connecting section 4 and the proximal section 5, so that the flexible section 13 penetrates out of the guide channel 11 to drive the proximal section 5 to be unfolded at the proximal end of the femoral artery, thereby facilitating bidirectional blood transfusion, inflating the hemostatic ball 7 in the femoral artery through the inflation tube 8 and blocking an opening; when needs will the utility model discloses take out, tie up line 10 tightly, derive input section 3, nearly heart section 5 and far away heart section 6 in proper order.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A bi-directional perfusion arterial cannula, comprising: the blood-stopping three-way tube comprises a three-way tube, a hemostasis mechanism arranged on the three-way tube and used for preventing blood from flowing out, a binding mechanism for binding two pipelines on the three-way tube, and a first guide wire movably arranged in the three-way tube, wherein the three-way tube is a hose.

2. The bi-directional perfusion arterial cannula of claim 1, wherein a guiding mechanism is disposed within the tee.

3. The bi-directional perfusion arterial cannula of claim 2, wherein the t-branch tube comprises an input section, a connecting section connected to the input section, and a proximal section and a distal section connected to the connecting section, wherein the input section, the connecting section, the proximal section and the distal section are flexible tubes, the first guidewire is movably disposed in the input section, the connecting section and the distal section, and the guiding mechanism is disposed in the input section, the connecting section and the proximal section.

4. A bi-directional perfusion arterial cannula according to claim 3, wherein the hemostasis mechanism includes a hemostasis ball secured to the input section and an inflation tube in communication with the hemostasis ball.

5. A bi-directional perfusion arterial cannula according to claim 4, wherein the anti-hemocyte is of an elastomeric material.

6. A bi-directional perfusion arterial cannula according to claim 3, wherein the binding mechanism includes two fixation rings fixed to the side wall of the inlet section and the side wall of the proximal section, respectively, and a binding wire surrounding the inlet section and the proximal section and passing through the two fixation rings.

7. A bi-directional perfusion arterial cannula according to claim 3, wherein the guiding mechanism includes a guiding channel disposed in communication with the input, connecting and proximal segments, and a second guidewire movably disposed in the guiding channel.

8. The bi-directional perfusion arterial cannula of claim 7, wherein the second guidewire includes a flexible section within the proximal section and a rigid section connected to the flexible section.

9. A bi-directional perfusion arterial cannula according to claim 3, wherein the distal section is inclined at an end distal to the connecting section.

10. A bi-directional perfusion arterial cannula according to claim 3, wherein the distal section has a smaller diameter at the end remote from the connecting section than at the end where the distal section is connected to the connecting section.

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