CN211486154U

CN211486154U - Disposable non-blood vessel cavity guide wire

Info

Publication number: CN211486154U
Application number: CN201922009932.3U
Authority: CN
Inventors: 刘漉平; 刘巧清; 郑立巧
Original assignee: Shenzhen Tairuishi Medical Technology Co ltd
Current assignee: Shenzhen Tairuishi Medical Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-09-15
Anticipated expiration: 2029-11-19

Abstract

The utility model relates to the technical field of medical equipment, and discloses a disposable non-vascular lumen guide wire, which is characterized by comprising a core wire, a soft head and a coating layer, wherein the core wire comprises a head end, a middle end and a tail end, the two ends of the middle end are respectively fixedly connected with the head end and the tail end, the head end of the core wire has a taper, the coating layer is coated on the middle end and the tail end of the core wire, and the soft head is coated on the head end of the core wire; the developing spring is connected between the soft head and the coating layer, and the developing spring is coated with a developing layer. The utility model discloses can solve among the prior art coating and soft head between take place the phenomenon that the rupture cracked easily to the problem of the treatment of patient of not being convenient for.

Description

Disposable non-blood vessel cavity guide wire

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a disposable non-blood vessel chamber way seal wire.

Background

At present, when a catheter is inserted into a lumen of a living body such as a nonvascular lumen, e.g., a digestive tract, a urinary tract, and a trachea, a guide wire is used to guide the catheter to a target site of the lumen of the living body. The role of guidewires in medical procedures is generally to assist in the advancement and proper positioning of catheters and other medical devices within a body lumen. In addition, in the case of a biological lumen or the like to be observed or treated using an endoscope, the catheter inserted into the lumen of the endoscope is also guided to a target site such as a biological lumen using a guide wire. A guide wire is used when inserting the catheter into the lumen, and the guide wire is first inserted into the lumen and then the catheter is advanced along the guide wire so that the guide wire can guide the catheter to the lesion.

The existing disposable non-vascular lumen guide wire generally comprises a coating layer and a soft head, but the coating layer and the soft head are easy to break and split, so that the treatment of a patient is inconvenient.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a disposable non-blood vessel chamber way seal wire to solve among the prior art coating and with take place easily between the soft head phenomenon that the rupture cracked, thereby the problem of the patient's of not being convenient for treatment.

In order to solve the technical problem, the utility model provides a disposable non-vascular lumen guide wire, which comprises a core wire, a soft head and a coating layer, wherein the core wire comprises a head end, a middle end and a tail end, the two ends of the middle end are respectively fixedly connected with the head end and the tail end, the head end of the core wire has a taper, the coating layer is coated on the middle end and the tail end of the core wire, and the soft head is coated on the head end of the core wire;

the developing spring is connected between the soft head and the coating layer, and the developing spring is coated with a developing layer.

Optionally, the outer side surface of the soft head and the outer side surface of the coating layer are both provided with hydrophilic coating layers.

Optionally, the hydrophilic coating is a crosslinked PVP coating.

Optionally, the outer surface of the coating layer is provided with inclined zebra stripes.

Optionally, the soft head is made of polyurethane.

Optionally, the developing layer is barium sulfate or bismuth oxide.

Optionally, the coating layer and the soft head are provided with a plurality of scale marks, and the distance between adjacent scale marks is the same.

Optionally, the distance between adjacent scale marks is 45-55 mm.

Optionally, the number of the scale marks is 6-8.

The embodiment of the utility model provides a disposable non-vascular chamber way seal wire compares with prior art, and its beneficial effect lies in:

the disposable non-vascular lumen guide wire provided by the embodiment of the utility model comprises a core wire, a soft head and a coating layer, wherein a developing spring is connected between the soft head and the coating layer, and the developing spring can enhance the connection tightness between the soft head and the coating layer, so that the soft head and the coating layer are connected together tightly, and the phenomenon of breaking and cracking of the soft head and the coating layer is avoided; the developing layer is coated at the developing spring, so that the guide wire is convenient to position;

therefore, the utility model discloses disposable non-vascular chamber says seal wire has the advantage stable and effectual with the location of use to certain popularization nature has.

Drawings

Fig. 1 is a schematic structural view of a disposable non-vascular lumen guide wire according to an embodiment of the present invention.

In the figure, 1, core wire; 2. softening the head; 3. a coating layer; 4. a developing spring; 5. scale marks are marked; 7. zebra stripes.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1, a preferred embodiment of the present invention provides a disposable non-vascular luminal guide wire, which comprises a core wire 1, a soft head 2 and a coating layer 3, wherein the core wire 1 comprises a head end, a middle end and a tail end, the two ends of the middle end are respectively fixedly connected with the head end and the tail end, the head end of the core wire 1 has a taper, the coating layer 3 is coated on the middle end and the tail end of the core wire 1, and the soft head 2 is coated on the head end of the core wire 1;

a developing spring 4 is connected between the soft head 2 and the coating layer 3, and the developing spring 4 is coated with a developing layer.

Based on the arrangement, the disposable non-vascular lumen guide wire provided by the embodiment of the utility model comprises a core wire 1, a soft head 2 and a coating layer 3, wherein a developing spring 4 is connected between the soft head 2 and the coating layer 3, and the developing spring 4 can enhance the connection tightness between the soft head 2 and the coating layer 3, so that the soft head 2 and the coating layer 3 are firmly connected together, and the phenomenon of breaking and cracking of the soft head 2 and the coating layer 3 is avoided; the developing layer is coated at the developing spring 4, so that the guide wire is convenient to position;

In the embodiment, as shown in fig. 1, the outer side surface of the soft head 2 and the outer side surface of the coating layer 3 are provided with hydrophilic coating layers, and the hydrophilic coating layers can reduce the friction between the soft head 2 and the ureter and between the coating layer 3 and the ureter, so that the damage of the soft head 2 to the ureter and the damage of the coating layer 3 to the ureter are reduced, and therefore, the soft head 2 and the coating layer 3 have excellent sliding performance;

wherein, hydrophilic coating is the crosslinked PVP coating, and the crosslinked PVP coating is meeting water after, because the crosslinked PVP coating can form the one deck water film on the surface of soft head 2 or the surface of coating 3 after meeting water to improve the sliding property of soft head 2 or coating 3.

In this embodiment, as shown in fig. 1, the outer surface of the coating layer 3 is provided with inclined zebra stripes 6.

In this embodiment, as shown in fig. 1, the soft head 2 is made of polyurethane, so that the soft head 2 and the coating layer 3 can be fused together, the connection effect between the soft head 2 and the coating layer 3 is enhanced, and the risk of falling off between the soft head 2 and the coating layer 3 is further reduced.

In this embodiment, as shown in fig. 1, the developing layer is barium sulfate or bismuth oxide, and the barium sulfate and bismuth oxide have a good developing effect under B-mode ultrasound.

In this embodiment, as shown in fig. 1, the coating layer 3 and the soft head 2 are provided with a plurality of scale marks 5, and the distance between adjacent scale marks 5 is the same, wherein the scale mark 5 arranged at the head end of the soft head 2 is taken as the starting end, so that the medical staff can observe the length of the guide wire entering the human body under the mirror, and the position of the guide wire can be judged.

In this embodiment, as shown in fig. 1, the distance between adjacent scale mark 5 is 45 ~ 55mm, and the quantity of scale mark 5 is 6 ~ 8, and is concrete, the utility model discloses a distance between adjacent scale mark 5 is 50mm, and the quantity of scale mark 5 is 7 to total scale length is 350 mm.

To sum up, the disposable non-vascular lumen guide wire provided by the embodiment of the utility model comprises a core wire 1, a soft head 2 and a coating layer 3, wherein a developing spring 4 is connected between the soft head 2 and the coating layer 3, and the developing spring 4 can enhance the connection tightness between the soft head 2 and the coating layer 3, so that the soft head 2 and the coating layer 3 are firmly connected together, and the phenomenon of breaking and cracking of the soft head 2 and the coating layer 3 is avoided; the developing layer is coated at the developing spring 4, so that the guide wire is convenient to position;

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A disposable non-vascular lumen guide wire is characterized by comprising a core wire, a soft head and a coating layer, wherein the core wire comprises a head end, a middle end and a tail end, the two ends of the middle end are respectively and fixedly connected with the head end and the tail end, the head end of the core wire is provided with a taper, the coating layer is coated on the middle end and the tail end of the core wire, and the soft head is coated on the head end of the core wire;

2. The disposable non-vascular luminal guidewire as defined in claim 1, wherein the outer side of the soft tip and the outer side of the coating are provided with hydrophilic coating layers.

3. The single use non-vascular luminal guidewire as defined in claim 2 wherein said hydrophilic coating is a crosslinked PVP coating.

4. The disposable non-vascular luminal guidewire as defined in claim 1 wherein the outer surface of said coating is provided with oblique zebra stripes.

5. The disposable non-vascular luminal guidewire as defined in claim 1, wherein the soft tip is made of polyurethane.

6. The disposable non-vascular luminal guidewire as defined in claim 1 wherein said visualization layer is barium sulfate or bismuth oxide.

7. The disposable non-vascular luminal guidewire as defined in claim 1, wherein said coating layer and said soft tip are provided with a plurality of graduated markings, the distance between adjacent ones of said graduated markings being the same.

8. The disposable non-vascular luminal guidewire as defined in claim 7, wherein the distance between adjacent said graduation marks is 45-55 mm.

9. The disposable non-vascular luminal guidewire as defined in claim 7, wherein the number of said graduated markings is 6-8.