CN213075843U - Bidirectional leading-in blood vessel puncture device - Google Patents

Abstract

The utility model relates to a bidirectional leading-in blood vessel puncture device, which comprises a sheath tube wall, a sheath tail end sleeve which is sleeved in the sheath tube wall, an anti-drop cushion soft membrane which is arranged at the top of the sheath tube wall and is connected with the top side wall of the sheath tail end sleeve, a sheath tube water injection tube which is arranged at the bottom of the sheath tail end sleeve, a sheath tube water injection tube valve which is arranged on the sheath tube water injection tube, a sheath core which is sleeved in the sheath tail end sleeve in a penetrating way and is used for a guide wire to penetrate, and a guide part which is arranged at the top end of the sheath core, wherein the top end of the sheath tail end sleeve is provided with an outlet, and the guide part penetrates out; 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

Bidirectional leading-in blood vessel puncture device

Technical Field

The application belongs to the technical field of blood vessel puncture devices, and particularly relates to a bidirectional leading-in blood vessel puncture device.

Background

At present, a vessel puncture catheter sheath is introduced into a catheter sheath in a single direction, the vessel puncture catheter sheath is placed into a vessel through a puncture technology to establish a one-way channel from the outside to the inside of a vessel cavity, the vessel puncture catheter sheath is punctured into an artery or a vein through a puncture needle, a guide wire is placed into the proximal end or the distal end, the vessel puncture catheter sheath is placed into the vessel cavity along the guide wire to establish a passage from the outside to the inside of the vessel cavity, but patients with pathological changes exist on both sides of a clinical multiple puncture point, if the pathological changes on both sides need to be solved, the two-way pathological changes or even multiple puncture. As shown in figure 1, the conventional catheter sheath can only be implanted in one direction, and cannot be simultaneously solved or solved by applying a minimally invasive mode when lesions exist at the proximal end and the distal end of a puncture point.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a two-way leading-in blood vessel puncture device is provided, can realize two-way leading-in pipe sheath to solve the puncture position both sides and all have the condition of pathological change under the realization minimal access operation.

In order to solve the above problem, the utility model discloses the technical scheme who adopts is:

a bidirectional leading-in blood vessel puncture device 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 sleeved in the catheter sheath tail end sleeve in a penetrating manner and used for a guide wire to penetrate, and a guide part arranged at the top end of the catheter sheath core, wherein an outlet is arranged at the top end of the catheter sheath tail end sleeve, 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 and the sleeve at the tail end of the catheter sheath.

The utility model discloses technical scheme's further improvement lies in: the anti-drop cushion soft membrane is made of medical soft PVC, medical silica gel or medical latex.

The utility model discloses technical scheme's further improvement lies in: a mark area is arranged between the lower edge of the anti-falling cushion soft membrane and the tube wall of the sheath tube and used for marking the insertion position of the blood vessel.

The utility model discloses technical scheme's further improvement lies in: the anti-drop cushion soft membrane and the top end side wall of the sheath tail end sleeve are integrally formed, and of course, the anti-drop cushion soft membrane and the sheath tube wall can also be integrally formed at the same time.

The utility model discloses technical scheme's further improvement lies in: the bottom end of the conduit sheath core is provided with a protrusion.

The utility model discloses technical scheme's further improvement lies in: the protrusion is triangular or annular.

The utility model discloses technical scheme's further improvement lies in: the guide part is arc-shaped.

The utility model discloses technical scheme's further improvement lies in: the arc-shaped bending angle is 80-150 degrees.

Since the technical scheme is used, the utility model discloses the beneficial effect who gains is:

at present, the catheter sheath for operating in the blood vessel cavity can only carry out the implantation in a single direction, and the direction can not be changed, and if the conditions that lesions are needed to be solved at both sides of a puncture point are involved, the simultaneous or minimally invasive solution can not be realized. And the utility model discloses can realize two-way direction pipe sheath under avoiding secondary puncture and open notched wicresoft's state to can solve the two side pathological changes condition in the same period, reduce puncture number of times and patient's damage, greatly reduce the emergence of complication, improve operation efficiency.

Meanwhile, the formation and design of the anti-drop pad at the tail end of the catheter sheath are key for realizing bidirectional operation and avoiding secondary puncture; the catheter sheath core is provided with the guide part through design, and the directional design is adopted, so that the guide of the guide wire is facilitated, and the direction selection efficiency is improved.

Meanwhile, the direction of the protrusion is consistent with that of the far-end pipe orifice, so that the direction of the far-end pipe orifice is marked, and the direction of the pipe orifice in the blood vessel can be conveniently judged by observing the protrusion from the outside. The sheath tube water injection tube is arranged, and the sheath tube flushing and the contrast operation after the contrast agent injection can be carried out through the sheath tube water injection tube.

Drawings

FIG. 1 is a schematic structural view of a conventional catheter sheath;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic structural view in an assembled state of the present invention;

FIG. 4 is a diagram illustrating the effect of the embodiment of the present invention in the direction A;

FIG. 5 is a diagram showing the effect of the embodiment of the present invention in the state that the anti-separation pad is opened;

FIG. 6 is a diagram illustrating the effect of the B direction in the embodiment of the present invention;

wherein: 1. sheath pipe water injection pipe valve, 2, sheath pipe water injection pipe, 3, anticreep pad mantle, 4, sheath pipe wall, 5, catheter sheath core, 6, catheter sheath tail end sleeve pipe, 7, protruding, 8, guide part, 9, export, 10, seal wire, 11, blood vessel, 12, sign district, 13, anticreep pad.

Detailed Description

The present invention will be described in further detail with reference to examples.

The utility model discloses a two-way leading-in blood vessel puncture device, see fig. 2-fig. 6, including sheath pipe wall 4, the jacket tail end sleeve pipe 6 in sheath pipe wall 4 is established to the cover, the anticreep pad mantle 3 that sets up at 4 tops of sheath pipe wall and be connected with the top lateral wall of sheath tail end sleeve pipe 6, the sheath pipe water injection pipe 2 of setting in 6 bottoms of sheath tail end sleeve pipe, the sheath pipe water injection pipe valve door 1 of setting on sheath pipe water injection pipe 2, wear to overlap in sheath tail end sleeve pipe 6 and supply the sheath core 5 that the seal wire 10 penetrated, the guide part 8 of setting on 5 tops of sheath core, be equipped with export 9 on the top of sheath tail end sleeve pipe 6, guide part 8 is worn out from export 9, the guide part 8 of setting is the arc, curved crooked angle is 80 ~ 150.

The anti-drop cushion soft membrane 3 is made of soft material, such as medical soft PVC, medical silica gel or medical latex, and aims to keep softness. The hardness of the anti-drop cushion soft membrane 3 is less than that of the sheath tube wall 4, and the hardness of the anti-drop cushion soft membrane 3 is also less than that of the conduit sheath tail end sleeve 6.

A mark area 12 is arranged between the lower edge of the anti-falling cushion soft membrane 3 and the sheath tube wall 4, the mark area 12 and the catheter sheath tail end sleeve 6 can be connected or not connected, and the mark area 12 is used for marking the insertion position of the blood vessel 11, so that the operation is convenient.

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

The anti-drop cushion soft membrane 3 is a special part forming the tube wall 4 of the sheath tube, when the sheath tail end sleeve 6 of the inner layer is withdrawn downwards, the anti-drop cushion soft membrane 3 on the outer layer of the area is folded upwards to form an anti-drop cushion 13 attached to the tube wall of the blood vessel 11. It can be seen from fig. 5 that the length at the arrow point is lengthened to form the distal-end anti-separation pad 13 of the sheath tube wall 4, that is, the sheath tube is composed of an inner layer and an outer layer, the outer layer is the sheath tube wall 4 and the top end of the sheath tube wall 4 is the anti-separation pad soft membrane 3, the inner layer is the sheath tail end sleeve 6, the inner layer and the outer layer at the farthest end are connected, when the sheath tail end sleeve 6 at the inner layer is withdrawn, the outer membrane of the anti-separation pad soft membrane 3 is folded by the withdrawal force, and the flying saucer-shaped annular anti-separation pad 13 is formed.

The anti-drop pad 13 formed by the anti-drop pad soft membrane 3 at the tail end of the catheter can be replaced by a water bag or an air bag, and is realized by the sheath tube water injection tube 2 and the anti-drop pad soft membrane 3 in a common cavity, namely, an independent channel is arranged between the sheath tube water injection tube 2 and the anti-drop pad soft membrane 3 for conveying water or gas, so that the aim of preventing the sheath tube wall 4 from being separated from the cavity of the blood vessel 11 is fulfilled.

The utility model discloses a use method does:

1. preparing the appliance, fig. 2;

2. after the puncture needle successfully punctures the blood vessel, the guide wire 10 is arranged in the direction A, and the utility model is installed, as shown in figure 3;

3. keeping 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 the related operation in the direction A is completed, the cannula 6 at the tail end of the catheter sheath is retracted, so that the anti-falling cushion soft membrane 3 at the head end is opened and an anti-falling cushion 13 is formed, as shown in figure 5; withdrawing the catheter sheath to enable the anti-falling pad 13 to be attached to the front wall of the blood vessel 11 close to the body surface;

5. and (3) placing the catheter sheath core 5, adjusting the direction to be a reverse direction B, placing the guide wire 10 along the catheter sheath core 5, as shown in fig. 6, after the guide wire 10 is placed at the far end along the planned direction, pushing the sleeve 6 at the tail end of the catheter sheath forward, placing the catheter sheath along the guide wire 10, completing the establishment of a passage in the direction B, and performing related operations.

Claims (8)

1. A bidirectional leading-in blood vessel puncture device is characterized in that: the sheath water injection valve comprises a sheath tube wall (4), a sheath tail end sleeve (6) sleeved in the sheath tube wall (4), an anti-falling cushion soft membrane (3) arranged at the top of the sheath tube wall (4) and connected with the top side wall of the sheath tail end sleeve (6), a sheath tube water injection tube (2) arranged at the bottom of the sheath tail end sleeve (6), a sheath tube water injection tube valve (1) arranged on the sheath tube water injection tube (2), a sheath core (5) sleeved in the sheath tail end sleeve (6) in a penetrating manner and used for a guide wire (10) to penetrate, and a guide part (8) arranged at the top end of the sheath core (5), wherein an outlet (9) is formed in the top end of the sheath tail end sleeve (6), and the guide part (8) penetrates out of the outlet (9); the anti-drop cushion soft membrane (3) is made of soft materials, and the hardness of the anti-drop cushion soft membrane (3) is smaller than that of the sheath tube wall (4) and the sheath tail end sleeve (6).

2. The bidirectional-introduction vascular puncture device according to claim 1, wherein: the anti-drop cushion soft membrane (3) is made of medical soft PVC, medical silica gel or medical latex.

3. The bidirectional-introduction vascular puncture device according to claim 2, wherein: a mark area (12) is arranged between the lower edge of the anti-drop cushion soft membrane (3) and the sheath tube wall (4), and the mark area (12) is used for marking the insertion position of the blood vessel (11).

4. A bidirectional lead-in vascular puncture device as set forth in claim 3, wherein: the anti-drop cushion soft membrane (3) and the top end side wall of the conduit sheath tail end sleeve (6) are integrally formed.

5. The bidirectional introducer vascular puncture device of claim 4, wherein: the bottom end of the conduit sheath core (5) is provided with a protrusion (7).

6. The bidirectional introducer vascular puncture device of claim 5, wherein: the protrusion (7) is triangular or annular.

7. The bidirectional-introduction vascular puncture device according to claim 1, wherein: the guide part (8) is arc-shaped.

8. The bidirectional introducer vascular puncture device of claim 7, wherein: the arc-shaped bending angle is 80-150 degrees.

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