CN221750697U - A vascular puncture sheath convenient for positioning - Google Patents

Abstract

The utility model discloses a vascular puncture sheath that is convenient to position in the field of vascular puncture sheath technology, comprising a puncture sheath, a connector and an adsorption disk, wherein the puncture sheath is a straight rod-shaped sheath tube, and a scale line is arranged on the outer wall of the puncture sheath; the connector is a bent sheet structure, one side of the connector can be slidably arranged on the puncture sheath by clamping, and an adsorption disk is arranged on the other side of the connector, which can accurately position the puncture sheath, and can adjust and fix the insertion depth, angle and direction of the puncture sheath, so that the length in the blood vessel is fixed, and the puncture sheath is prevented from moving or even coming out when the guide wire, balloon, stent delivery system and other operations are performed, affecting the accurate release of the stent and the like. The puncture sheath with a scale that can be fixed is very convenient to use, provides convenience for doctors' surgical operations, and reduces unnecessary X-ray radiation. Moreover, since the device is provided with a precise scale, the insertion depth positioning is highly accurate.

Description

A vascular puncture sheath convenient for positioning

Technical Field

The utility model relates to the technical field of blood vessel puncture sheaths, in particular to a blood vessel puncture sheath which is convenient for positioning.

Background Art

The puncture sheath, also known as the vascular puncture sheath, is a device for percutaneous vascular puncture, which establishes a basic pathway from the skin to the blood vessel, allowing the catheter and guide wire to enter the blood vessel to reach the lesion site. It consists of a puncture needle, a guide wire, a dilator, and a vascular sheath.

It is often used to examine blood vessels, and vascular stents will be inserted through the vascular puncture sheath. In particular, arterial puncture is a common procedure in clinical departments such as interventional medicine, neurology, vascular surgery and cardiology.

This operation requires perforating the blood vessel and inserting the puncture sheath into the blood vessel. It is necessary to ensure that the needle tip of the puncture sheath is inserted at a 40-degree angle to the direction of the artery. After insertion, specimens can be collected as needed, interventional surgery can be performed, and a blood transfusion infusion device can be connected. Some examinations last for a long time, and the puncture sheath needs to be fixed in the blood vessel, and the artery needs to be connected to the external tube through the puncture sheath to establish an operation channel. This operation requires the position of the puncture sheath to be fixed and the insertion angle to be fixed. There is currently no convenient device. Another doctor needs to use clamps or other instruments to stabilize the puncture sheath to keep its angle, depth and direction fixed. Not only is the operation cumbersome, but the hand will be tired during the holding process, and the hand needs to be changed. This hand-changing operation can easily cause the puncture sheath to be displaced or deflected, causing the puncture sheath to be offset from the affected area, making it impossible to perform normal detection. It needs to be adjusted again to re-establish a stable channel before the operation can be performed. It will also increase the X-ray radiation dose of the operating doctor.

The operation is complicated and inconvenient, and it is easy to deflect, which brings inconvenience to the operation. There is currently no good solution.

Based on this, the utility model designs a vascular puncture sheath that is convenient for positioning to solve the above problems.

Summary of the invention

The purpose of the utility model is to provide a vascular puncture sheath that is easy to position and can accurately position the puncture sheath. It not only has a simple structure and occupies a small space, and does not affect the doctor's surgical operation, but also can adjust and position the insertion depth, angle and direction of the puncture sheath. It is very convenient to use and greatly reduces the doctor's extra workload. A separate doctor is no longer required to clamp or hold the puncture sheath, which provides convenience for the doctor's surgical operation. In addition, the device can intuitively check the insertion depth of the puncture sheath and can also locate the depth position that needs to be inserted. There is no need to estimate the insertion position, and the accuracy is high.

The utility model is implemented as follows: a vascular puncture sheath convenient for positioning comprises:

Vascular sheaths, connectors, and suction discs;

The vascular sheath is a flexible hollow circular tube, and scale lines are arranged on the outer wall of the vascular sheath;

The connecting piece is a bent sheet structure, one side of the connecting piece can be slidably mounted on the vascular sheath in a clamped manner, and an adsorption disk is arranged on the other side of the connecting piece;

The bottom of the adsorption disk can be detachably attached to the epidermis.

Furthermore, the connecting piece is an integral structure made of silicone, a sliding sleeve hole is provided on one side of the connecting piece, and a locking hole is provided on the other side of the connecting piece;

The detachable sliding sleeve of the sliding sleeve hole is mounted on the vascular sheath, and the vascular sheath and the sliding sleeve hole are in interference fit;

The angle r between the two sides of the connecting member is between 120° and 160°.

Furthermore, a connecting rod is provided on the top of the adsorption disk, and the connecting rod can be detachably slidably inserted into the locking hole, and the connecting rod and the locking hole are interference fit;

The bottom attachment surface of the adsorption plate is parallel to the side where the connecting piece is clamped, and the connecting rod is perpendicular to the bottom attachment surface of the adsorption plate.

Furthermore, the origin of the scale line is the spike end of the vascular sheath.

Furthermore, the bottom of the adsorption plate is a suction cup or a self-adhesive silicone sheet, and the connecting rod is a PVC straight rod.

The beneficial effects of the utility model are as follows: 1. The utility model adds scale lines on the vascular sheath, which can visually check the depth of the vascular sheath inserted into the blood vessel, so as to accurately judge the position where the tip of the vascular sheath is inserted, which is convenient for accurate positioning of the surgical position;

2. The vascular sheath of the device can be slidably mounted through the connector, so as to be easily adjusted, and then fixed through the adsorption plate, so that the vascular sheath can be installed and positioned on the patient's epidermis, so that the vascular sheath of the device does not need manual support, and no other doctor's assistance is required. In addition, the device has a simple structure, occupies a small space, and does not affect the doctor's surgical operation;

3. The connecting piece of the device can slide back and forth on the vascular sheath, and the connecting rod can slide and position with the locking hole, so that when the vascular sheath of the device is positioned, the insertion angle and direction of the vascular sheath can be adjusted, and the angle and direction can be limited after the adjustment is completed, which is more flexible to use.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the structure of the utility model after adjusting the position;

FIG3 is a schematic diagram of the disassembled state of the connector and the adsorption plate of the utility model;

FIG4 is a schematic cross-sectional view of the structural connector of the present invention.

In the accompanying drawings, the components represented by the reference numerals are listed as follows:

1-vascular sheath, 11-scale line, 12-operating end, 2-connecting piece, 21-sliding sleeve hole, 22-locking hole, 3-adsorption disk, 31-connecting rod.

DETAILED DESCRIPTION

Please refer to Figures 1 to 4. The utility model provides a technical solution: a vascular puncture sheath that is convenient for positioning, comprising:

A vascular sheath 1, a connector 2 and an adsorption disk 3;

The vascular sheath 1 is a flexible hollow circular tube, and a scale mark 11 is arranged on the outer wall of the vascular sheath 1;

The connecting member 2 is a bent sheet structure, one side of the connecting member 2 can be slidably mounted on the vascular sheath 1, and the other side of the connecting member 2 is provided with an adsorption disk 3;

The bottom of the adsorption disk 3 can be detachably attached to the epidermis of the affected area, and can accurately locate the vascular sheath, and can adjust and fix the insertion depth, angle and direction of the vascular sheath 1, so that the length in the blood vessel is fixed, and the vascular sheath 1 is prevented from moving or even coming out during the operation of the guide wire, balloon, stent delivery system, etc., which affects the accurate release of the stent, etc. The vascular sheath 1 with scale can be fixed and is very convenient to use, which greatly reduces the extra workload of the doctor. It is no longer necessary for a separate doctor to clamp or hold the vascular sheath 1 in a fixed position, which provides convenience for the doctor's surgical operation and reduces unnecessary X-ray radiation. In addition, since the device is equipped with a precise scale, the insertion depth of the vascular sheath 1 can be visually checked, and the depth position to be inserted can be located, and there is no need to estimate the insertion position, and the accuracy is high.

The connecting member 2 is an integral structure made of silicone, a sleeve hole 21 is provided on one side of the connecting member 2, and a locking hole 22 is provided on the other side of the connecting member 2;

The sliding sleeve hole 21 is detachably slidably mounted on the vascular sheath 1, and the vascular sheath 1 and the sliding sleeve hole 21 are interference fit;

The angle r between the two sides of the connector 2 is between 120° and 160°, which is convenient for supporting the vascular sheath 1 and can easily form a stable angle between the vascular sheath 1 and the blood vessels in the skin. Generally, the angle design of the connector 2 can adjust the vascular sheath 1 and the blood vessel to the optimal insertion angle;

A connecting rod 31 is provided on the top of the adsorption disk 3, and the connecting rod 31 can be detachably slidably inserted into the locking hole 22, and the connecting rod 31 and the locking hole 22 are interference fit;

The bottom attachment surface of the adsorption plate 3 is parallel to the side of the connector 2, and the connecting rod 31 is perpendicular to the bottom attachment surface of the adsorption plate 3, which is convenient for stable support of the connector 2. Anti-skid patterns can also be added to the connecting rod 31, and anti-skid patterns should also be added to the locking hole 22. The material of the locking hole 22 needs to be selected from anti-skid silicone to effectively prevent sliding displacement.

The origin of the scale line 11 is the sharp end of the vascular sheath 1, which is convenient for checking the penetration depth of the tip of the vascular sheath 1. The scale and numbers can be directly checked at a glance;

The bottom of the adsorption plate 3 is a suction cup or a self-adhesive silicone sheet, and the connecting rod 31 is a PVC straight rod, which facilitates the adsorption plate 3 to be closely attached and positioned on the epidermis near the vascular sheath 1.

In a specific embodiment of the present invention:

The embodiment of the utility model provides a vascular puncture sheath that is easy to position. The technical problems encountered by the utility model are as follows: 1. When the vascular sheath 1 is operated after being inserted into the blood vessel, it is necessary to position the vascular sheath 1. Currently, there is no particularly convenient sterile device to lock the vascular sheath 1. The doctor assisting the operation needs to free up one hand to continuously hold the vascular sheath 1 and ensure that the vascular sheath 1 is stable and cannot move or rotate. The requirements for the assisting doctor are high, especially at the critical moment of the operation, when it is necessary to ensure that the vascular sheath 1 is completely motionless. However, when the human hand remains motionless for a long time, it is easy to get tired and shake or move without knowing it, which will affect the operation. Especially for operations with high precision requirements, it is necessary to keep the tip of the vascular sheath 1 pointed at the affected area after insertion, which brings inconvenience to the operation; 2. This kind of vascular intervention surgery generally needs to be an arterial vascular surgery, which requires many other instruments to cooperate with the surgery. Hemostatic forceps, probes, electrode needles and many other instruments need to be inserted or withdrawn from the vascular sheath 1. The operating space is limited. When another doctor holds the vascular sheath 1, it will affect the surgical operation and bring inconvenience; 3. Now after the vascular sheath 1 is inserted into the blood vessel, the affected area is found, and then the insertion depth, angle and direction of the vascular sheath 1 need to be kept stable. This is a very laborious operation, but it has to be kept fixed. There is currently no good solution.

The technical problem solved by the utility model is: through a simple structure, the vascular sheath 1 is positioned while occupying less space, and the angle, depth and direction of the vascular sheath 1 can be conveniently adjusted according to the different punctured blood vessels and position requirements, and it can also be positioned after the adjustment.

The technical effects achieved are as follows: 1. The utility model adds a scale line 11 on the vascular sheath 1, which can visually check the depth of the vascular sheath 1 inserted into the blood vessel, so as to accurately determine the position where the tip of the vascular sheath 1 is inserted, which is convenient for accurately locating the surgical position;

2. The vascular sheath 1 of the device can be slidably mounted through the connecting piece 2, so as to be conveniently adjusted, and then fixed through the adsorption plate 3, so that the vascular sheath 1 can be installed and positioned on the patient's epidermis, so that the vascular sheath 1 of the device does not need manual support by people, and no longer needs the assistance of other doctors. It is precisely because it does not need manual support by doctors, which reduces the workload of assistant doctors, and does not cause the vascular sheath 1 to be displaced or slide or separate from the blood vessel due to fatigue and hand shaking, effectively avoiding the position deviation of the vascular sheath 1 caused by people holding it, and the device has a simple structure, occupies a small space, and does not affect the doctor's surgical operation;

3. The connecting piece 2 of the device can slide back and forth on the vascular sheath 1, and the connecting rod 31 can slide and position with the locking hole 22, so that when the vascular sheath 1 of the device is positioned, the insertion angle and direction of the vascular sheath 1 can be adjusted, and the angle and direction can be limited after the adjustment is completed. The positioning is accurate, the installation is stable, and the use is more flexible.

The technical solution in the embodiment of the utility model is to solve the above problems, and the overall idea is as follows:

In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

When the utility model is manufactured, a vascular sheath 1, a connecting piece 2 and an adsorption plate 3 are manufactured;

The vascular sheath 1 is a flexible hollow circular tube. This vascular sheath 1 is a vascular sheath tube of a conventional vascular puncture sheath. The vascular sheath 1 and the operating end 12 form a complete conventional vascular puncture sheath. Many of these puncture sheaths have various components and functions, but all require the vascular sheath 1 to be placed into the body to establish a channel, and a puncture needle is used to enter the body along the puncture sheath 1 to perform a surgical operation.

This device only needs to set scale lines 11 on the outer wall of the vascular sheath 1 of the conventional vascular puncture sheath. The origin of the scale lines 11 is the pointed end of the vascular sheath 1, that is, the section deep into the body is the origin. In this way, the scale marks 11 exposed on the outside can intuitively check the depth of the vascular sheath 1 inserted into the body.

The connecting member 2 is a bent sheet structure, one side of the connecting member 2 can be slidably mounted on the vascular sheath 1, and the other side of the connecting member 2 is provided with an adsorption disk 3;

The connecting piece 2 is an integral structure made of silicone, a sleeve hole 21 is provided on one side of the connecting piece 2, and a locking hole 22 is provided on the other side of the connecting piece 2;

The sliding sleeve hole 21 is detachably mounted on the vascular sheath 1, and the vascular sheath 1 and the sliding sleeve hole 21 are interference fit, so that the vascular sheath 1 can slide in the sliding sleeve hole 21, and the vascular sheath 1 and the connector 2 can remain in a static state when no external force is applied, so as to facilitate the positioning of the depth of the vascular sheath 1 inserted into the blood vessel;

The angle r between the two sides of the connecting member 2 is between 120° and 160°, and is preferably 145°, which is easy to adjust and can better meet the epidermal angle of the vascular sheath 1 piercing.

The bottom of the adsorption plate 3 can be detachably attached to the epidermis. The bottom of the adsorption plate 3 is a suction cup or a self-adhesive silicone sheet. The adsorption plate 3 can be positioned on the epidermis by adsorption or adhesion. When the bottom of the adsorption plate 3 is a self-adhesive silicone sheet, the bottom needs to be flat. When the adsorption plate 3 is a suction cup, a suction cup that can be pressed and adsorbed is required.

A connecting rod 31 is provided on the top of the adsorption disk 3, and the connecting rod 31 can be detachably inserted into the locking hole 22, and one side of the connecting sheet 2 with the locking hole 22 can slide along the connecting rod 31, and the connecting rod 31 and the locking hole 22 are interference fit;

The bottom attachment surface of the adsorption plate 3 is parallel to the side of the connector 2, and the connecting rod 31 is perpendicular to the bottom attachment surface of the adsorption plate 3. The connecting rod 31 is a PVC straight rod, and the connecting rod 31 needs to have good supporting force. Therefore, the connecting rod 31 needs to be a hard PVC straight rod that can support and position the connecting piece 2. The connecting piece 2 can have a certain elasticity, but it needs to be a PVC sheet, silicone sheet or rubber sheet with good supporting force. As long as it can provide stable support and be clamped with the connecting rod 31, it can also slide and position with the vascular sheath 1, and can be clamped with the vascular sheath 1 and the connecting rod 31 through interference fit.

When the utility model is used, other perspective equipment, such as CT, is first used to locate the affected area that needs surgical treatment, and then the vascular sheath 1 is inserted into the arterial blood vessel so that the direction of the penetration depth of the tip of the vascular sheath 1 conforms to the situation viewed by the perspective equipment, and then the sliding sleeve hole 21 of the connecting member 2 is slid on the outside of the vascular sheath 1. Different supporting positions will produce different manufacturing angles. According to the direction of the skin and the blood vessel, the angle between the vascular sheath 1 and the skin is adjusted to a suitable angle, and the matching position of the connecting rod 31 and the locking hole 22 needs to be adjusted. Different locking positions of the connecting rod 31 and the locking hole 22 also The position of the vascular sheath 1 can be adjusted, and at the same time, the direction of the connecting piece 2 can be rotated to adjust the positioning direction of the vascular sheath 1. The depth needs to be calibrated by the scale line 11, which is intuitive to view. After the depth is positioned, the position where the connecting piece 2 and the vascular sheath 1 can be locked is determined, and then the angle of the vascular sheath 1 is adjusted by adjusting the connecting rod 31. Therefore, the angle of the vascular sheath 1 can be adjusted by both the connecting piece 2 and the connecting rod 31. This is to avoid the situation where the vascular sheath 1 cannot be adjusted after being inserted into a certain depth. The connecting piece 2 can also limit the insertion depth of the vascular sheath 1 to prevent the vascular sheath 1 from penetrating both sides of the blood vessel wall.

Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims (4)

1. A vascular puncture sheath that is convenient for positioning, characterized in that it comprises: a vascular sheath (1), a connecting piece (2) and an adsorption disk (3); The vascular sheath (1) is a flexible hollow circular tube, and scale lines (11) are arranged on the outer wall of the vascular sheath (1); The connecting piece (2) is a bent sheet-like structure, one side of the connecting piece (2) can be slidably mounted on the vascular sheath (1) in a clamped manner, and an adsorption disk (3) is arranged on the other side of the connecting piece (2); The bottom of the adsorption disk (3) can be detachably attached to the epidermis; A connecting rod (31) is provided on the top of the adsorption disk (3), and the connecting rod (31) is detachably slidably inserted into the locking hole (22), and the connecting rod (31) and the locking hole (22) are interference fit; The bottom attachment surface of the adsorption plate (3) and the side of the connecting piece (2) that is clamped are parallel to each other, and the connecting rod (31) is perpendicular to the bottom attachment surface of the adsorption plate (3). 2. A vascular puncture sheath for convenient positioning according to claim 1, characterized in that: the connecting piece (2) is an integral structure made of silicone, a sliding sleeve hole (21) is provided on one side of the connecting piece (2), and a locking hole (22) is provided on the other side of the connecting piece (2); The sliding sleeve hole (21) is detachably slidably mounted on the vascular sheath (1), and the vascular sheath (1) and the sliding sleeve hole (21) are interference fit; The angle r between the two sides of the connecting member (2) is between 120° and 160°. 3. A vascular puncture sheath that is easy to position according to claim 1, characterized in that the origin of the scale line (11) is the spike end of the vascular sheath (1). 4. A vascular puncture sheath that is easy to position according to claim 3, characterized in that the bottom of the adsorption plate (3) is a suction cup or a self-adhesive silicone sheet, and the connecting rod (31) is a PVC straight rod.