CN111616779A - A kind of bidirectional introduction vascular puncture device - Google Patents

Abstract

The invention relates to a bidirectional leading-in blood vessel puncture device, which comprises a sheath tube wall, a catheter sheath tail end sleeve sleeved in the sheath tube wall, an anti-falling cushion soft membrane arranged at the top of the sheath tube wall and connected with the top side wall of the catheter sheath tail end sleeve, a sheath tube water injection tube arranged at the bottom of the catheter sheath tail end sleeve, a sheath tube water injection tube valve arranged on the sheath tube water injection tube, a catheter sheath core which is sleeved in the catheter sheath tail end sleeve in a penetrating manner and is used for a guide wire to penetrate, and a guide part arranged at the top end of the catheter sheath core, wherein the top end of the catheter sheath tail end sleeve is provided with an outlet, and the guide part penetrates out of the outlet; the anti-drop cushion soft membrane is made of soft materials, and the hardness of the anti-drop cushion soft membrane is smaller than that of the tube wall of the sheath tube. The device can realize bidirectional guide catheter sheath in a minimally invasive state of avoiding secondary puncture and opening incision, thereby solving the bilateral pathological changes at the same time, reducing puncture times and patient injury, greatly reducing the occurrence of complications and improving the operation efficiency.

Description

A kind of bidirectional introduction vascular puncture device

technical field

The present patent application belongs to the technical field of vascular puncturing devices, and more particularly, relates to a bidirectional introduction vascular puncturing device.

Background technique

At present, the vascular puncture catheter sheath is introduced into the catheter sheath in a single direction. Through the puncture technique, the vascular catheter sheath is inserted to establish a unidirectional channel from the outside to the vascular cavity, and the puncture needle is punctured into the artery or vein, and the proximal or distal end is punctured. A guide wire is inserted, and a vascular sheath is inserted along the guide wire to establish a passage from the body to the lumen of the blood vessel. However, in clinical practice, patients with lesions on both sides of the puncture point are often seen. To resolve bilateral lesions, two or even multiple punctures are required. Or cut the blood vessel to complete the bidirectional lesion treatment. The traditional catheter sheath is shown in Figure 1. The vascular catheter sheath can only be placed in one direction. For the simultaneous presence of lesions at the proximal and distal ends of the piercing site, it cannot be solved at the same time, or it can be solved by a minimally invasive method.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a bidirectional vascular puncture device, which can realize bidirectional introduction of the catheter sheath, thereby realizing the problem of lesions on both sides of the puncture site under minimally invasive operation.

In order to solve the above problems, the technical scheme adopted in the present invention is:

A bidirectional introduction vascular puncture device, comprising a sheath tube wall, a catheter sheath tail end sleeve sleeved in the sheath tube tube wall, arranged on the top of the sheath tube wall and connected with the top side wall of the catheter sheath tail end sleeve The anti-detachment cushion soft film, the sheath water injection pipe set at the bottom of the sheath at the end of the catheter sheath, the sheath water injection pipe valve set on the sheath water injection pipe, and the sheath at the end of the catheter sheath. The catheter sheath core inserted into the catheter sheath is provided with a guide part at the top of the catheter sheath core, an outlet is provided on the top end of the catheter sheath tail end sleeve, and the guide part passes through the outlet; The hardness of the soft release membrane is less than that of the sheath tube wall and the tube at the end of the catheter sheath.

A further improvement of the technical solution of the present invention is that the soft film of the anti-releasing pad is made of medical soft PVC, medical silica gel or medical latex.

A further improvement of the technical solution of the present invention is that a marking area is provided between the lower edge of the soft film of the anti-detachment cushion and the sheath tube wall, and the marking area is used to mark the insertion position of the blood vessel.

A further improvement of the technical solution of the present invention is that the anti-detachment cushion soft film is integrally formed with the top side wall of the catheter sheath tail end sleeve. Of course, the anti-detachment cushion soft film can also be integrally formed with the sheath tube wall at the same time.

A further improvement of the technical solution of the present invention is that the bottom end of the catheter sheath core is provided with a protrusion.

A further improvement of the technical solution of the present invention is that the protrusions are triangular or annular.

A further improvement of the technical solution of the present invention is that the guide portion is arc-shaped.

A further improvement of the technical solution of the present invention is that the bending angle of the arc is 80-150°.

Owing to adopting the above-mentioned technical scheme, the beneficial effects obtained by the present invention are:

At present, the catheter sheath for endovascular operation can only be placed in a single direction, and the direction cannot be changed. The present invention can realize bidirectional guide catheter sheath under the minimally invasive state of avoiding secondary puncture and open incision, thereby simultaneously solving bilateral lesions, reducing the number of punctures and patient damage, greatly reducing the occurrence of complications, and improving the operation efficiency. efficiency.

At the same time, the formation and design of the anti-detachment pad at the end of the catheter sheath is the key to realize bidirectional operation and avoid secondary puncture; the catheter sheath core is designed with a guide part and adopts a directional design, which is conducive to the guidance of the guide wire and improves the efficiency of direction selection. .

At the same time, a protrusion is provided, the protrusion is in the same direction as the distal nozzle, the purpose is to mark the direction of the distal nozzle, and it is convenient to judge the directionality of the intravascular nozzle by observing the protrusion in vitro. A sheath water injection pipe is provided, through the sheath water injection pipe: the sheath can be flushed and the contrast agent can be injected and then angiography can be performed.

Description of drawings

Fig. 1 is the structural representation of traditional catheter sheath;

Fig. 2 is the structural representation of the present invention;

Fig. 3 is the structural representation under the assembled state of the present invention;

Fig. 4 is the use effect diagram of A direction in the embodiment of the present invention;

Fig. 5 is the use effect diagram of the soft film of the anti-releasing pad in the A direction in the open state in the embodiment of the present invention;

Fig. 6 is the use effect diagram of B direction in the embodiment of the present invention;

Among them: 1. Sheath water injection pipe valve, 2. Sheath water injection pipe, 3. Anti-fall cushion soft film, 4. Sheath tube wall, 5. Catheter sheath core, 6. Catheter sheath tail sleeve, 7. Protrusion , 8, guide part, 9, outlet, 10, guide wire, 11, blood vessel, 12, identification area, 13, anti-fall pad.

Detailed ways

The present invention will be described in further detail below in conjunction with the embodiments.

The present invention discloses a bidirectional vascular puncturing device, referring to FIGS. 2-6 , comprising a sheath tube wall 4, a catheter sheath tail end sleeve 6 sheathed in the sheath tube wall 4, and a sheath tube wall 4. The top and the top side wall of the catheter sheath tail end sleeve 6 is connected to the anti-delivery soft film 3, the sheath water injection pipe 2 arranged at the bottom of the catheter sheath tail end sleeve 6, the sheath water injection pipe 2 arranged on the sheath pipe The sheath water injection pipe valve 1, the catheter sheath core 5 which is sheathed in the catheter sheath tail end sleeve 6 and for the guide wire 10 to penetrate, the guide part 8 arranged at the top of the catheter sheath core 5, the catheter sheath tail end sleeve 6 There is an outlet 9 on the top end of the device, and the guide portion 8 passes through the outlet 9. The guide portion 8 provided is arc-shaped, and the bending angle of the arc is 80-150°.

The anti-releasing pad soft film 3 is made of soft materials, such as medical soft PVC, medical silicone or medical latex, in order to maintain the softness. The hardness of the anti-detachment cushion soft film 3 is smaller than the hardness of the sheath tube wall 4, and the hardness of the anti-detachment cushion soft film 3 is also smaller than the hardness of the catheter sheath tail end sleeve 6.

There is a marking area 12 between the lower edge of the anti-detachment cushion soft membrane 3 and the sheath tube wall 4, the marking area 12 and the catheter sheath tail end cannula 6 can be connected or not connected, and the marking area 12 is used to mark the insertion of the blood vessel 11 position for easy operation.

The anti-detachment cushion soft film 3 is integrally formed with the top side wall of the catheter sheath tail end sleeve 6 , and the anti-detachment cushion soft film 3 is also integrally formed with the sheath tube wall 4 . The bottom end of the catheter sheath core 5 is provided with a protrusion 7, and the protrusion 7 is triangular or annular.

The anti-releasing cushion soft film 3 is a special part that constitutes the sheath tube wall 4. When the inner layer of the catheter sheath tail end sleeve 6 is withdrawn downward, the outer layer of the anti-releasing cushion soft film 3 is folded upward in this area to form a The anti-detachment pad 13 is attached to the wall of the blood vessel 11 . It can be seen from FIG. 5 that the lengthened length of the arrow is to form the anti-detachment pad 13 at the distal end of the sheath tube wall 4, that is, the sheath tube is composed of inner and outer layers, and the outer layer is the sheath tube wall 4 and the sheath tube wall The top of the 4 is the anti-detachment cushion soft film 3, the inner layer is the catheter sheath tail sleeve 6, and the inner and outer layers at the farthest end are connected. When the inner layer of the catheter sheath tail sleeve 6 is withdrawn, the pulling force will be The outer membrane of the soft film 3 of the anti-releasing pad is folded to form a flying saucer mouth-like annular anti-releasing pad 13 .

The anti-detachment cushion 13 formed by the anti-detachment cushion soft film 3 at the end of the catheter can be replaced by a water bag or an air bag, and is realized by co-cavity of the sheath water injection pipe 2 and the anti-detachment cushion soft film 3, that is, a separate space is set between the two. The channel is used to transport water or gas, so as to prevent the sheath tube wall 4 from being prolapsed from the lumen of the blood vessel 11 .

The using method of the present invention is:

1. Prepare the equipment, as shown in Figure 2;

2. After the puncture needle punctures the blood vessel successfully, the guide wire 10 is placed in the A direction, and the present invention is installed, as shown in Figure 3;

3. Keep the direction of the catheter sheath core 5 consistent with the direction A of the guide wire 10, as shown in Figure 4;

4. After completing the related operations in the A direction, withdraw the catheter sheath tail sleeve 6 to open the anti-detachment cushion soft film 3 at the head end and form the anti-detachment cushion 13, as shown in Figure 5; withdraw the catheter sheath to make the anti-detachment cushion 13 Fits with the anterior wall of blood vessels 11 close to the body surface;

5. Insert the catheter sheath core 5, adjust the direction to the opposite direction B, and insert the guide wire 10 along the catheter sheath core 5, as shown in Figure 6, after the guide wire 10 is inserted into the distal end along the intended direction, push the catheter sheath tail sleeve forward Tube 6, insert the catheter sheath along the guide wire 10, complete the establishment of the B-direction passage, and perform related operations.

Claims (8)

1. a bidirectional introduction vascular puncture device is characterized in that: comprise sheath tube wall (4), be sleeved on the catheter sheath tail end sleeve (6) in the sheath tube wall (4), be arranged on the sheath tube The top of the wall (4) and connected with the top side wall of the sheath (6) at the end of the catheter sheath, the anti-delivery soft film (3), and the sheath water injection pipe (2) arranged at the bottom of the sheath (6) at the end of the catheter sheath ), the sheath water injection pipe valve (1) arranged on the sheath water injection pipe (2), the catheter sheath core (5) which is sheathed in the catheter sheath tail end sleeve (6) and provided for the guide wire (10) to penetrate ), a guide portion (8) arranged at the top of the catheter sheath core (5), an outlet (9) is provided on the top of the catheter sheath tail end sleeve (6), and the guide portion (8) passes through the outlet (9). ; The soft film (3) of the anti-delivery pad is made of soft material, and the hardness of the soft film (3) of the anti-delivery pad is smaller than the hardness of the sheath tube wall (4) and the tube sheath (6) at the end of the catheter sheath. 2 . The bidirectional vascular puncture device according to claim 1 , wherein the anti-detachment cushion soft film ( 3 ) is made of medical soft PVC, medical silica gel or medical latex. 3 . 3. A kind of bidirectional introduction blood vessel puncturing device according to claim 2, is characterized in that: between the lower edge of the anti-detachment cushion soft membrane (3) and the sheath tube wall (4), a marking area (12) is provided, The marking area (12) is used to mark the insertion position of the blood vessel (11). 4. A bidirectional vascular puncture device according to claim 3, characterized in that: the anti-delivery soft membrane (3) is integrally formed with the top side wall of the catheter sheath tail end sleeve (6). 5 . The bidirectional vascular puncture device according to claim 4 , wherein the bottom end of the catheter sheath core ( 5 ) is provided with a protrusion ( 7 ). 6 . 6 . The device according to claim 5 , wherein the protrusion ( 7 ) is triangular or annular. 7 . 7 . The bidirectional vascular puncturing device according to claim 1 , wherein the guide portion ( 8 ) is arc-shaped. 8 . 8 . The bidirectionally-introduced blood vessel puncturing device according to claim 7 , wherein the bending angle of the arc is 80° to 150°. 9 .

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