JP6472618B2 - Hemostatic shunt device - Google Patents

Description

  The present invention relates to a hemostatic shunt device. More specifically, the present invention provides a surgical operation for quickly stopping bleeding from the inferior vena cava, portal vein or hepatic vein due to liver damage, etc., while maintaining reflux to the heart, and repairing liver damage or other damage. The present invention relates to a hemostatic shunt device for enabling accurate and quick operation.

  In surgery to repair damaged blood vessels or remove foreign substances such as cholesterol adhering to the inner wall of the blood vessel, temporarily block the blood flowing in the target blood vessel and perform blood vessel surgery during that time There is. If the blood flow is completely stopped, a downstream organ or the like may be damaged. Therefore, a bypass path is usually provided in the blood vessel to be treated so that blood is sent to the downstream organ.

  As a medical instrument used for such a treatment, Patent Document 1 leads to an artificial blood vessel part, an annular bag body that can be stretched at both ends of the artificial blood vessel part, and an annular bag body attached to the central part of the artificial blood vessel part. A surgical artificial blood vessel having a flow path and provided with a check valve in the flow path leading to the annular bag body is disclosed.

  Patent Document 2 discloses a first elongated tubular member, first and second expandable balloons spaced from each other along the first tubular member, and communication with the first and second balloons. A blood flow occlusion catheter having a second elongate annular member that communicates with a second annular member attached to a central portion of the first tubular member.

  Patent Document 3 discloses a catheter tube, a first balloon that is provided at the distal end of the tube and that can be radially expanded and contracted, and a radial balloon that is provided on the downstream side in the axial direction of the tube from the first balloon. And a second balloon catheter including a second balloon. This balloon catheter for blood vessels is provided with a side hole for injecting a solution, an anticancer agent or the like into the blood vessel between the first balloon and the second balloon.

  As shown in FIG. 7, the hepatic artery 4, hepatic vein 2, inferior vena cava 1, and portal vein 3 pass through the liver. The portal vein 3 is a blood vessel in which venous blood from the stomach, intestine, pancreas, spleen and the like gathers. In the liver, the inferior vena cava 1 joins the hepatic vein 2, and blood is sent to the right atrium of the heart. Since the inferior vena cava 1 passes through the back side of the liver, it is behind the liver and is difficult to view in laparotomy. If the portal vein, hepatic vein, or inferior vena cava is torn due to liver damage, a large amount of blood flows out. Because the portal vein, inferior vena cava and hepatic vein pass through the liver, hemostasis is extremely difficult. Therefore, the mortality rate of liver injury combined with hepatic vein injury or inferior vena cava injury is extremely high.

  Various methods of hemostasis of the inferior vena cava in liver injury surgery have been tried. As one method for hemostasis of the inferior vena cava, there is a method in which the portal vein, hepatic artery, inferior vena cava, and aorta are picked and closed with forceps to stop both blood flowing into and out of the liver. However, this method may cause damage to various organs, and furthermore, there is no blood circulation to the heart, so that cardiac arrest may be reached in a short time. As another method for hemostasis of the inferior vena cava, the portal vein and hepatic artery are clamped with forceps to stop blood flowing into the liver, and a balloon catheter for occluding the blood vessel is inserted from the inferior vena cava on the liver entrance side. There is a method of inserting and stopping the blood by inflating the balloon near the exit of the liver, and further tying the inferior vena cava on the liver entrance side with a thread to stop the venous blood. Since this method requires time to bind the inferior vena cava, it is not suitable for emergency liver injury surgery.

Japanese Utility Model Publication No.59-44420 Japanese Patent Laid-Open No. 10-127772 JP 2004-135688 A

  The object of the present invention is to maintain the return to the heart and to quickly stop bleeding from the portal vein, inferior vena cava or hepatic vein due to liver damage, etc., and to accurately perform surgery to repair liver damage and other damage. And to provide a hemostatic shunt device that can be performed quickly.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have completed the present invention including the following forms.

[1] A hose having a lumen that extends from the distal end to the proximal end, and a lumen that communicates with the lumen of the distal balloon and the proximal balloon and opens to the proximal end,
A distal balloon attached to the hose distal side that can be inflated to a size that can block the inferior vena cava or portal vein blood flow,
A proximal balloon attached to the proximal side of the hose that can be inflated to a size that can block the blood flow of the inferior vena cava or portal vein, and from the proximal end of the hose further toward the proximal side Having an elongated member attached,
A hemostatic shunt device.

[2] The hemostatic shunt device according to [1], wherein the hose has a curved or bent shape in an idle state.
[3] The hemostatic shunt device according to [1], wherein a distal end of the hose has a narrow shape first.
[4] The hemostatic shunt device according to [1], wherein a core material is attached to the hose.
[5] The hemostatic shunt device according to [1], wherein a marker is installed at a proximal end portion of the hose.
[6] The hemostatic shunt device according to [1], wherein a visible marker is installed on the long member.
[7] The hemostatic shunt device according to [1], wherein the hose has a telescopic mechanism capable of changing a distance between the distal balloon and the proximal balloon.

[8] The hemostatic shunt device according to [1], which stops bleeding from the portal vein, inferior vena cava or hepatic vein associated with liver damage.
[9] The elongate member is a pipe having a lumen penetrating from the distal end to the proximal end,
The hemostatic shunt device according to [1], wherein a lumen of the pipe communicates with a lumen that communicates with lumens of the distal balloon and the proximal balloon and opens at a proximal end of the hose.
[10] A tube having a lumen extending from the distal end to the proximal end and having a thickness smaller than that of the hose,
The hemostatic shunt device according to [1], wherein a lumen of the tube communicates with a lumen that communicates with lumens of a distal balloon and a proximal balloon and opens at a proximal end of a hose.
[11] The hemostatic shunt device according to [1], wherein the long member is thinner than the hose.

[12] A device set for a hemostatic shunt comprising: a vascular forceps having a sponge or rubber elastic body attached to a sandwiching portion; and the hemostatic shunt device according to any one of [1] to [11].

  The hemostatic shunt device of the present invention can quickly stop bleeding from the portal vein, inferior vena cava or hepatic vein due to liver damage while maintaining the return to the heart, thus repairing liver damage and other damage Therefore, it becomes possible to perform an operation accurately and quickly.

It is a figure which shows the hemostatic shunt device which concerns on one Embodiment of this invention. It is a figure which shows the hemostatic shunt device which concerns on one Embodiment of this invention. It is a figure which shows the principal part of the hemostatic shunt device which concerns on one Embodiment of this invention. It is a figure which shows the principal part in the hemostatic shunt device which concerns on one Embodiment of this invention. It is a figure which shows the hemostatic shunt device which concerns on one Embodiment of this invention. It is a figure which shows the hemostatic shunt device which concerns on one Embodiment of this invention. It is a figure which shows the structure of a liver. It is a front view which shows an example of the state which inserts the hemostatic shunt device which concerns on one Embodiment of this invention in the inferior vena cava, and is hemostatic. It is a side view which shows an example of the state which has inserted the hemostatic shunt device which concerns on one Embodiment of this invention into the inferior vena cava, and is hemostatic. It is a figure which shows the structural example of the distal end of the hemostatic shunt device which concerns on one Embodiment of this invention. It is a figure which shows the structural example of the distal end of the hemostatic shunt device which concerns on another one Embodiment of this invention. It is the front view which shows an example of the vascular forceps which provides sponge or a rubber elastic body in the clamping part 26, a side view, and a clamping part enlarged view. It is a figure which shows the state which has obstruct | occluded the incision part 23 with the vascular forceps shown in FIG.

  A hemostatic shunt device according to an embodiment of the present invention will be described with reference to the drawings. This description is provided for the purpose of helping a more general understanding of the present invention, and the present invention is not limited to the following embodiments.

(First embodiment)
FIG. 1 is a view showing a hemostatic shunt device 10 according to an embodiment of the present invention. At least the hose 11, the distal balloon 12, the proximal balloon 13, and the elongate member 15 are included. In FIG. 1, drawing of the intermediate portion of the tube 14 and the long member 15 is omitted.

  The hose 11 has at least a lumen 16 and a lumen 17. The distal balloon 12 is attached to the distal end 11d side of the hose 11, and can be inflated to a size that can block the blood flow of the inferior vena cava or the portal vein. The proximal balloon 13 is attached to the proximal end 11p side of the hose 11, and can be inflated to a size that can block the blood flow of the inferior vena cava or the portal vein. Since the diameter of the inferior vena cava is approximately 15 to 35 mm and the diameter of the portal vein is approximately 10 to 15 mm, the size of the balloon is set according to the size. The inflating size of the distal balloon and the proximal balloon may be the same. Further, since the inferior vena cava is generally thicker on the side closer to the heart than on the side farther from the heart, the distal balloon may be expanded more than the proximal balloon. Since the diameter of these blood vessels depends on the degree of bleeding, the size of the balloon inflating is adjusted according to the patient's situation.

  The hose 11 is preferably made of a soft material that can be elastically deformed. Examples of the elastically deformable soft material include polyvinyl chloride, polyamide, polyethylene, and polyester. The distal balloon and the proximal balloon are preferably made of a soft material that can expand and contract. Examples of the soft material that can be expanded and contracted include polyurethane, polyvinyl chloride, polyamide, and polyethylene. The outer diameter of the hose 11 is designed according to the thickness of the inferior vena cava. The inner diameter of the hose 11 is designed from the viewpoint of serving as a blood bypass path. In the hemostatic shunt device for the inferior vena cava, the inner diameter φ of the hose 11 is approximately 10 mm.

  The lumen 16 of the hose 11 is a hollow portion that penetrates from the distal end 11d to the proximal end 11p of the hose 11. The lumen 16 serves as a blood bypass path when the hemostatic shunt device 10 is inserted into the inferior vena cava as shown in FIG. 8 and the distal balloon 12 and the proximal balloon 13 are inflated to close the inferior vena cava. This ensures the return of blood to the heart. In the hemostatic shunt device shown in FIG. 1, the elongate member is thinner than the hose, so that the proximal end opening of the lumen 16 is on the side of the elongate member. When a member having the same thickness as the hose is employed as the long member, a hole formed in the side wall of the proximal end of the hose can be used as the proximal end opening of the lumen 16.

  The lumen 17 of the hose 11 is a hollow portion that communicates with the lumens of the distal balloon and the proximal balloon through the hole 12h and the hole 13h in the inner wall of the hose 11 and opens to the proximal end of the hose. Note that the proximal end opening of the lumen 17 is closed by communicating with the lumen of the tube 14 or the pipes 415 and 515 described later, and is opened by the nozzles 20, 420 and 520. Through the lumen 17, air such as air, carbon dioxide gas, and nitrogen gas, and liquid such as physiological saline and sterilized distilled water are externally pumped to the distal balloon and proximal balloon to inflate the distal balloon and proximal balloon. be able to.

  The hemostatic shunt device shown in FIG. 1 further includes a tube 14 having a lumen extending from the distal end to the proximal end and having a thickness smaller than that of the hose. The lumen of the tube 14 communicates with a lumen 17 that communicates with the lumens of the distal and proximal balloons and opens at the proximal end of the hose. In order to form the lumen 17 and the lumen of the tube 14, the distal end of the tube 14 is extended from the proximal end 11 d to the lumen 16 of the hose 11, and the tube 14 is bonded to the inner wall of the hose 11. Can do.

  In the hemostatic shunt device shown in FIG. 1, a nozzle 20 is attached to the proximal end of the tube 14, and a plunger or the like can be connected to the nozzle. The nozzle may be provided with a cock, a check valve or the like.

  In the hemostatic shunt device shown in FIG. 1, one lumen 17 is provided for the distal balloon and the proximal balloon, but two lumens 17 in total, one for each of the distal balloon and the proximal balloon. May be provided. By providing one lumen 17 for each of the distal balloon and the proximal balloon, the expansion and contraction of the distal balloon and the proximal balloon can be independently controlled separately. Insert into the vena cava, adjust the position of the distal balloon, inflate the distal balloon to close the liver exit side of the inferior vena cava, then adjust the position of the proximal balloon and then inflate the proximal balloon The operation of closing the liver entrance side of the vena cava can also be performed.

  The long member 15 is attached from the proximal end of the hose 11 further toward the proximal side. In the hemostatic shunt device shown in FIG. 1, the long member 15 is thinner than the hose 11. In the hemostatic shunt device shown in FIG. 1, a gripping member 21 is provided at the proximal end of the long member 15 so that an operator can easily operate the hemostatic shunt device. FIG. 1 shows a ring-shaped gripping member 21. The shape and size of the gripping member can be changed as appropriate from the viewpoint of ease of gripping, ease of operation, and the like.

  Further, a marker 18 is attached to the proximal end of the hose 11. Further, a marker 19 is attached to the long member. The marker 18 is for confirming the position of the proximal end of the hose 11. The marker 18 can be made of a material sensitive to electromagnetic waves or the like. For example, when a magnet such as a neodymium magnet is attached as the marker 18, the position can be recognized by a magnetic sensor or a magnetic detector even when the marker 18 is invisible behind the liver or inferior vena cava. The marker 19 serves as a length scale. The insertion depth of the hemostatic shunt device 10 can be visually recognized by the marker 19 attached to the long member 15.

  The surgeon operates the long member to insert the hemostatic shunt device body (hose portion) into the inferior vena cava or portal vein. The long member preferably has a buckling strength and a bending strength that do not buckle and refract during operation. From such a demand, the long member is made of metal wire, pipe or bar, hard resin wire, pipe or bar, bamboo wire, pipe or bar, wooden wire, pipe or bar. It is preferable that it is formed by. The structure of the long member can be employed in other medical instruments that require buckling strength and bending strength. For example, a long member having a spiral structure, a net structure, a stranded wire structure, a multiple tube structure, a core-sheath structure, or the like can be employed. Further, a buckling strength and bending strength can be increased by attaching a core material to the hose.

(Second Embodiment)
FIG. 2 is a view showing a hemostatic shunt device 110 according to an embodiment of the present invention. It has at least a hose 111, a distal balloon 112, a proximal balloon 113, and an elongate member 115. In FIG. 2, drawing is omitted in the intermediate portion of the tube 114 and the long member 115. The hemostatic shunt device 110 has the same structure as the hemostatic shunt device 10 except that the hose 111 is curved. Since the inferior vena cava passes through the back side of the liver, the hemostatic shunt device 110 consisting of the curved hose 111 can be inserted along the back side of the liver in open surgery. The hose 111 shown in FIG. 2 is curved, but can be replaced with a bent one (see, for example, FIG. 6). The degree of bending is not particularly limited. It is preferable that the hepatic shunt device is bent at an angle or a curvature at the back side of the liver so that it can be easily inserted into the inferior vena cava.

(Third embodiment)
FIG. 3 is a view showing a main part of the hemostatic shunt device 210 according to one embodiment of the present invention. It has at least a hose 211, a distal balloon 212, a proximal balloon 213, and an elongate member 215. The hemostatic shunt device 210 has the same structure as the hemostatic shunt device 110 except that the bellows structure 224 is part of the hose 211. In FIG. 3, drawing is omitted on the proximal side of the tube 214 and the long member 215.

(Fourth embodiment)
FIG. 4 is a view showing a main part of the hemostatic shunt device 310 according to one embodiment of the present invention. It has at least a hose 311, a distal balloon 312, a proximal balloon 313, and an elongate member 315. The hemostatic shunt device 310 has the same structure as the hemostatic shunt device 110 except that the expandable pipe structure 325 is part of the hose 311. In FIG. 4, drawing is omitted on the proximal side of the tube 314 and the long member 315.

  The distance between the inferior vena cava and the inferior vena cava of the adult liver is approximately 10 cm or less. Thus, the distance between the distal balloon and the proximal balloon can be 10 cm or less. However, the size of the liver varies depending on the patient's physique (for example, adults and children). If the size of the jig does not match the patient's physique, effective hemostasis may not be possible. Since repair operation for liver damage requires urgent action, a jig having a function of adjusting the size is preferable because of its high degree of freedom. In the hemostatic shunt devices 210 and 310 shown in FIG. 3 and FIG. 4, the hemostatic shunt device 210 is inserted into the inferior vena cava by providing one lumen 217 or 317 for each of the distal balloon and the proximal balloon. Adjust the position of the position balloon, inflate the distal balloon to close the liver exit side of the inferior vena cava, then adjust the hose length using expansion and contraction mechanisms such as bellows and expansion pipes to adjust the proximal position The operation of inflating the proximal balloon and closing the liver entrance side of the inferior vena cava after adjusting the position of the balloon can also be performed.

(Fifth embodiment)
FIG. 5 is a view showing a hemostatic shunt device 410 according to an embodiment of the present invention. It has at least a hose 411, a distal balloon 412, a proximal balloon 413, and an elongate member 415. In FIG. 5, the drawing of the middle part of the long member 415 and the tube 414 is omitted. The hemostatic shunt device 410 is a pipe having a lumen through which the elongate member 415 passes from the distal end to the proximal end, and the lumen included in the pipe communicates with the lumens of the distal balloon and the proximal balloon. The tube 414 is connected to the lumen 417 that opens to the proximal end, the tube 414 is connected to the lumen that opens to the proximal end of the pipe, and the nozzle 420 is connected to the proximal end of the tube 414. Except for being installed, it has the same structure as the hemostatic shunt device 110. In order to form the lumen 417 and the lumen of the pipe, the pipe can be bonded to the inner wall of the hose 411 by extending the distal end of the pipe from the proximal end to the lumen 416 of the hose 411. In the hemostatic shunt device 410 shown in FIG. 5, the tubes provided in the hemostatic shunt device shown in FIG. You can expect to decrease.

(Sixth embodiment)
FIG. 6 is a view showing a hemostatic shunt device 510 according to an embodiment of the present invention. It has at least a hose 511, a distal balloon 512, a proximal balloon 513, and an elongate member 515. In FIG. 6, the drawing of the middle part of the long member 515 and the tube 514 is omitted. The hemostatic shunt device 510 is a pipe having a lumen through which the elongate member 515 passes from the distal end to the proximal end, and the lumen of the pipe communicates with the lumens of the distal balloon and the proximal balloon. The tube 514 communicates with the lumen that opens at the proximal end, and the lumen of the tube 514 communicates with the lumen that opens at the proximal end of the pipe. The nozzle 520 is installed at the proximal end of the tube 514. Furthermore, it has the same structure as the hemostatic shunt device 110 except that the hose 511 and the long member 515 are bent. In the hemostatic shunt device 510 shown in FIG. 6, the tube provided in the hemostatic shunt device shown in FIG. You can expect to decrease. Further, the bending operation of the hose 511 and the long member 515 may facilitate the operation for insertion into the inferior vena cava or portal vein. The angle of the bent portion is not limited to that shown in the figure, and can be set as appropriate from the viewpoint of ease of insertion.

  The distal end of the hemostatic shunt device shown in FIGS. 1 to 6 has a shape in which the hose is cut obliquely and becomes narrower toward the tip. In a curved or bent hose, it is preferable from the viewpoint of insertability to cut obliquely so that the outside of the bent portion becomes longer. Further, the distal end of the hemostatic shunt device may have a conical shape having a slit hole as shown in FIG. 11, an oblique conical shape having a triangular hole as shown in FIG.

  The device set for a hemostatic shunt according to the present invention comprises a vascular forceps in which a sponge or rubber elastic body is attached to the holding part 26 and the hemostatic shunt device according to the present invention. In the vascular forceps, a sponge or rubber elastic body is attached to the inside of the holding part 26, and when the incision part 23 is picked together with the long member and the tube in the holding part (see FIG. 13), the sponge or rubber is used. The elastic body is deformed along the shape of the long member and the tube. The type of the vascular forceps is not particularly limited, but a satin ski type (see FIG. 12) is preferable. The device set for a hemostatic shunt according to the present invention preferably further includes a plunger. Moreover, the container and pack in which the liquid or gas for pumping to a balloon instead of a plunger were accommodated may be contained.

  By including the vascular forceps, the hemostatic shunt device of the present invention, and, if necessary, a plunger, a container, a pack, and the like in one set, it is possible to prevent erroneous use during an emergency operation.

  An example of how to use the hemostatic shunt device according to the present invention will be described with reference to FIGS. 7, 8, 9 and the like. A large amount of blood bleeds from the hepatic vein or the inferior vena cava due to liver damage. Therefore, first, the portal vein 3 and the hepatic artery 4 are picked with forceps to block blood flowing into the liver. An incision is made in the inferior vena cava (the blood vessel upstream from the confluence of the renal veins 24) on the entrance side of the liver. Before the incision, it is effective in order to prevent massive bleeding by temporarily blocking the blood flow on the upstream side and downstream side of the incision part manually or with vascular forceps. The distal end of the hemostatic shunt device according to the present invention is inserted into the incision 23 and the proximal end side of the elongated member 515 is operated to insert the hemostatic shunt device into the inferior vena cava toward the liver. If the device is pushed too far, the distal end of the device reaches the right atrium of the heart. Palpate the inferior vena cava on the liver exit side or check the position of the marker 519 or the like to place the distal end of the device on the exit side of the liver. Located in the inferior vena cava. Next, the incision 23 is pinched with vascular forceps together with the elongated member and the tube (see FIG. 13) to minimize bleeding from the incision. The position of the marker 518 made of a magnet installed at the proximal end of the hose is checked with a magnetic detector to confirm that it is set correctly. If it is in the correct position, the plunger is set on the nozzle and the gas is pumped to inflate the distal balloon 512 and the proximal balloon 513. If the blood flow is not sufficiently blocked, the vascular forceps are loosened and the long member is operated to finely adjust the position. As a result, the inferior vena cava on the entrance side of the liver and the inferior vena cava on the exit side of the liver are blocked. It should be noted that the vascular forceps used here have a sponge or rubber elastic body attached to the inside of the sandwiching portion 26, and when the incision portion 23 is picked together with the long member and the tube at the sandwiching portion, the sponge or rubber elasticity The body deforms along the shape of the elongated member and tube. The blood in the inferior vena cava is shunted through the lumen 516 of the hose 511 of the hemostatic shunt device to the exit inferior vena cava. By blocking the entrance-side inferior vena cava and the exit-side inferior vena cava, bleeding from the hepatic vein that has been torn due to liver damage or the inferior vena cava in the liver is stopped. While the bleeding has stopped, the repaired procedure can be performed by suturing the damaged part.

  After completion of the repair procedure, the vascular forceps are removed from the incision, the pumping from the plunger is stopped, and the balloon is deflated. The hemostatic shunt device according to the present invention is extracted from the incision 23 and the incision 23 is sutured. Remove forceps from portal vein and hepatic artery. After confirming that blood flow to the liver has returned, the laparotomy is sutured. By the above method, a repair operation for liver damage can be performed.

  Also, in the case of bleeding due to portal vein damage, the hemostatic shunt device according to the present invention can be inserted into the portal vein to stop bleeding in the same manner as described above.

1: inferior vena cava 2: hepatic vein 3: portal vein 4: hepatic artery 5: gallbladder 6: common bile duct 7: hepatic sickle mesentery 8: country line 9: liver right lobe 10, 110, 210, 310, 410, 510: hemostatic shunt device 11, 111, 211, 311, 411, 511: hose 11d, 111d, 211d, 311d, 411d: hose distal end 11p, 111p, 211p, 311p, 411p: hose proximal end 12, 112, 212, 312, 412, 512: distal balloons 12h, 112h, 212h, 312h, 412h: communication holes 13, 113, 213, 313, 413, 513: distal balloons 13h, 113h, 213h 313h, 413h: proximal balloon-lumen communication holes 14, 114, 214, 314: tubes 15, 115, 15, 315, 415, 515: Long members 16, 116, 216, 316, 416: Lumen 17, 117, 217, 317, 417: Lumen 18, 118, 218, 318, 418, 518: Marker communicating with the balloon (Magnet marker etc.)
19, 119, 219, 319, 519: marker 20, 120, 420: nozzle 21, 421: gripping part 23: incision part 224: bellows structure 325: telescopic pipe structure 26: vascular forceps clamping part

Claims (4)

A hose having a lumen that extends from the distal end to the proximal end and a lumen that communicates with the lumen of the distal balloon and the proximal balloon and opens to the proximal end;
A distal balloon attached to the hose distal side that can be inflated to a size that can block the inferior vena cava or portal vein blood flow,
Proximal balloon that can be inflated to a size that can block the inferior vena cava or portal blood flow, attached to the hose proximal side,
And the tube is thinner thickness than the hose has a lumen extending through the to the proximal end from the distal end, and more and the hose attached to the hose towards the further proximally from the proximal end of the hose Has a long member with a small thickness,
The lumen of the tube communicates with the lumen of the distal balloon and proximal balloon of the hose that communicates with the lumen of the proximal balloon and opens to the proximal end of the hose.
The elongate member is for an operator to operate to insert the hose into the inferior vena cava or portal vein,
A hemostatic shunt device that stops bleeding while maintaining a return to the heart . A hose having a lumen that extends from the distal end to the proximal end and a lumen that communicates with the lumen of the distal balloon and the proximal balloon and opens to the proximal end;
A distal balloon attached to the hose distal side that can be inflated to a size that can block the inferior vena cava or portal vein blood flow,
A proximal balloon attached to the proximal side of the hose that can be inflated to a size that can block the blood flow of the inferior vena cava or portal vein, and from the proximal end of the hose further toward the proximal side Having a long member attached to the hose ;
The hose has an inferior arc shape curved or bent in an idle state,
The elongate member is for an operator to operate to insert the hose into the inferior vena cava or portal vein,
A hemostatic shunt device that stops bleeding while maintaining a return to the heart . A hose having a lumen that extends from the distal end to the proximal end and a lumen that communicates with the lumen of the distal balloon and the proximal balloon and opens to the proximal end;
A distal balloon attached to the hose distal side that can be inflated to a size that can block the inferior vena cava or portal vein blood flow,
A proximal balloon attached to the proximal side of the hose that can be inflated to a size that can block the blood flow of the inferior vena cava or portal vein, and from the proximal end of the hose further toward the proximal side Having a long member attached to the hose ;
The hose is made of an elastically deformable soft material,
The elongate member is for the operator to operate to insert the hose into the inferior vena cava or portal vein, and buckling strength and bending strength to such an extent that they are not bent or refracted during the operation. Having a metal, hard resin, bamboo or wood,
A hemostatic shunt device that stops bleeding while maintaining a return to the heart . A hose having a lumen that extends from the distal end to the proximal end and a lumen that communicates with the lumen of the distal balloon and the proximal balloon and opens to the proximal end;
A distal balloon attached to the hose distal side that can be inflated to a size that can block the inferior vena cava or portal vein blood flow,
A proximal balloon attached to the proximal side of the hose that can be inflated to a size that can block the blood flow of the inferior vena cava or portal vein, and from the proximal end of the hose further toward the proximal side Having a long member attached to the hose ;
The elongate member is for an operator to operate to insert the hose into the inferior vena cava or portal vein,
The hose has a telescoping mechanism that can change the distance between the distal balloon and the proximal balloon by adjusting the hose length .
A hemostatic shunt device that stops bleeding while maintaining a return to the heart .

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