CN217794061U

CN217794061U - Compound strenghthened type epidural anesthesia pipe

Info

Publication number: CN217794061U
Application number: CN202220535430.3U
Authority: CN
Inventors: 梁淑英; 陈英富
Original assignee: Guangdong Yide Medical Technology Co ltd
Current assignee: Guangdong Yide Medical Technology Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-11-15
Anticipated expiration: 2032-03-10

Abstract

The utility model provides a compound strenghthened type epidural anesthesia pipe which characterized in that: the inner tube, the spiral spring strip and the outer sleeve are arranged from inside to outside; a spiral spring strip is arranged in the outer sleeve; the inner pipe material is a thermoplastic polyurethane material and is formed by extrusion; the helical spring strip has a loose section; the two ends of the inner tube are provided with a medicine inlet and a medicine outlet which are communicated through a tube cavity; the outer sleeve is made of PVDF materials through extrusion molding. The multiple pipes are compounded into a whole, the hardness is moderate, and the rigidity and the softness are combined; effectively prevents damage, avoids the phenomenon of pipe detachment, pipe shrinkage or pipe bending, and can ensure the smoothness of the anesthesia liquid medicine infusion in clinic.

Description

Compound strenghthened type epidural anesthesia pipe

Technical Field

The utility model relates to the technical field of medical equipment manufacture, especially, relate to a compound strenghthened type epidural anesthesia pipe.

Background

According to market research and patent retrieval, the epidural nerve block in the prior art is an anesthesia method widely applied in clinic, and has the advantages of simple operation, low cost, easy management in operation, convenient epidural analgesia after operation and the like. When the method is used for anesthesia, a catheter is required to be arranged in an epidural space, and the catheter is an anesthesia catheter. The performance of the anesthetic tube directly affects the anesthetic effect, and therefore, it is important to develop an anesthetic tube with excellent performance.

Most of epidural catheters commonly used in the market at present are ordinary PVC catheters or nylon catheters without flexibility, and have the defects of tube breakage, tube blockage, damage to blood vessels and nerve tissues, no development under X-rays and the like easily in the clinical use process. When the hardness of the material of the catheter is high, the catheter is easy to put into a human body, but the flexibility is poor, the blood vessels of tissues and nerves are easy to stab, even the dura mater is poked, the phenomenon that the blood vessels are damaged is particularly prominent, and the safety is poor; when the hardness of the material of the catheter is low, the flexibility is high, but the catheter is not easy to be placed into an epidural space and is easy to bend or even knot after being placed, so that the catheter cannot be taken out, and the operation is time-consuming and labor-consuming; the epidural anesthesia catheter is soft in the epidural space tissue finally placed, is rich in nerves, and is easy to press the epidural space nerves after the traditional catheter is placed, so that the comfort of a patient is poor.

Therefore, a composite reinforced epidural anesthesia catheter is developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a composite reinforced epidural anesthesia catheter which integrates a plurality of pipes into a whole, has moderate hardness and is rigid and flexible; effectively prevents damage, avoids the phenomenon of pipe detachment, pipe shrinkage or pipe bending, and can ensure the smoothness of the anesthesia liquid medicine infusion in clinic.

In order to realize the purpose, the utility model adopts the technical scheme that a compound strenghthened type epidural anesthesia pipe is provided, its characterized in that: the inner tube, the spiral spring strip and the outer sleeve are arranged from inside to outside; a spiral spring strip is arranged in the outer sleeve; the inner pipe material is a thermoplastic polyurethane material and is formed by extrusion; the helical spring strip has a loose section; the two ends of the inner tube are provided with a medicine inlet and a medicine outlet which are communicated through a tube cavity; the outer sleeve is made of PVDF materials through extrusion molding.

In one or more embodiments of the present invention, the outer sleeve is transparent or translucent.

In one or more embodiments of the present invention, the number of loose sections is multiple sections, and they are spaced apart.

In one or more embodiments of the present invention, the inner diameter of the inner tube is 0.50 to 0.55mm, the outer diameter is 0.6 to 0.65mm, and the length is 800 to 1200mm.

In one or more embodiments of the present invention, the wire diameter of the helical spring strip is 0.06mm; the outer diameter is 0.86mm.

In one or more embodiments of the present invention, the outer diameter of the outer sleeve is 2mm; the inner diameter is 1.4mm; the length is 800-1200mm.

In one or more embodiments of the present invention, the outer sleeve surface has length scale printed markings.

Compared with the background art, the utility model, the effect that exists is:

the utility model adopts the above scheme, the structure is simple, the cost is low, the large-scale and standardized production is convenient to implement, the clinical practicability is strong, the multiple pipes are combined into a whole, the hardness is moderate, and the hardness and softness are both strong and soft; the device has the advantages of effectively preventing injury, avoiding the phenomenon of pipe detachment, pipe shrinkage or pipe rupture, ensuring the smoothness and no resistance during clinical anesthesia liquid medicine infusion, avoiding or reducing the occurrence of clinical complications such as epidural hemorrhage, hematoma, paraplegia and the like caused by injury of epidural blood vessels and soft tissues by personnel during puncture, and facilitating the observation of blood backflow by doctors at the same time.

Drawings

Fig. 1 is a schematic sectional view of a composite reinforced epidural anesthesia catheter according to an embodiment of the present invention;

those skilled in the art can appreciate that the shapes, configurations and solutions shown in the drawings are not necessarily to scale, and that the sizes of the various components and elements of the drawings may be exaggerated or minimized to more clearly illustrate the embodiments of the present invention described herein.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

The orientation shown in the drawings is not to be considered as limiting the scope of the invention, but merely as providing a reference to the preferred embodiments, changes in position or addition of numbers or structural simplifications may be made to the product parts shown in the drawings.

The relation of "connected" between the components shown in the drawings and described in the specification can be understood as fixedly connected or detachably connected or integrally connected; the connecting elements can be directly connected or connected through an intermediate medium, and persons skilled in the art can understand the connecting relation according to specific conditions, and can use the connecting elements in a screwed connection or riveting connection or welding connection or clamping connection or embedding connection mode to replace different embodiments in a proper mode.

The terms of orientation such as up, down, left, right, top, bottom, and the like in the description and the orientation shown in the drawings, may be used for direct contact or contact with each other through another feature therebetween; above may be directly above and obliquely above, or it simply means above the other; other orientations may be understood by analogy. The technical solution and the advantages of the present invention will be made clearer and clearer by further describing the embodiments of the present invention with reference to the drawings of the specification.

While specific embodiments are described below with reference to fig. 1, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for illustrative purposes only and should not be construed as limiting, the present embodiment provides a composite reinforced epidural anesthesia catheter comprising an outer cannula 1, a helical spring strip 2 and an inner tube 3; the outer sleeve 1 is internally provided with a spiral spring strip 2; the inner pipe 3 is made of thermoplastic polyurethane material and is formed by extrusion; the helical spring strip 2 has a loose section 21; a medicine inlet 31 and a medicine outlet 32 are arranged at two ends of the inner tube 3, and the medicine inlet 31 and the medicine outlet 32 are communicated through a tube cavity 33; the outer sleeve 1 is made of PVDF (polyvinylidene fluoride) material through extrusion molding.

The outer sleeve and the inner tube are transparent or semitransparent. The number of the loosening sections 21 (observation windows) is multiple, and the loosening sections are arranged at intervals. Specifically, the inner tube has an inner diameter of 0.50 to 0.55mm, an outer diameter of 0.6 to 0.65mm, and a length of 800 to 1200mm. The wire diameter of the spiral spring strip is 0.06mm; the outer diameter is 0.86mm. The outer diameter of the outer sleeve is 2mm; the inner diameter is 1.4mm; the length is 800-1200mm.

In this embodiment, the outer sleeve 1 has length scale printing marks 11 on its surface.

During the use, length scale printing identification line 11 has shown in the operation that the length of feeding provides visual accurate scale to and the pitch space of loose section 21 forms perspective window with transparent or translucent form outer tube, make can the range estimation liquid medicine flow state when the operation, helical spring strip 2 is difficult for appearing taking off the pipe, draw pipe or pipe "the book" phenomenon, and can develop the function under the X-ray, it is unblocked when can guarantee clinical infusion anesthesia liquid medicine, the pipe surface is super smooth, can effectively reduce the doctor and put the resistance of pipe ejector sleeve and to the advantage of vascular tissue's secondary damage. The three-layer reinforcing structure of the plastic layer and the elastomer of the spiral spring strip 2, the inner tube and the outer sleeve ensures that the catheter is resistant to bending, blocking and breaking and the liquid medicine is smooth and unobstructed; the front, middle and rear perspective windows of the epidural catheter are designed, so that the catheter is rigid and flexible, the occurrence of clinical complications such as epidural bleeding, hematoma and paraplegia caused by injury of epidural blood vessels and soft tissues of a patient is avoided or reduced during puncture, and a doctor can conveniently observe blood backflow at the same time.

The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the embodiments. However, it will be apparent to one skilled in the art that the specific details are not required in order to practice the embodiments. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and modifications and substitutions based on the known art are intended to fall within the scope of the present invention, which is defined by the claims.

Claims

1. The utility model provides a compound strenghthened type epidural anesthesia pipe which characterized in that: the inner tube, the spiral spring strip and the outer sleeve are arranged from inside to outside; a spiral spring strip is arranged in the outer sleeve; the inner pipe material is a thermoplastic polyurethane material and is formed by extrusion; the helical spring strip has a loose section; the two ends of the inner tube are provided with a medicine inlet and a medicine outlet which are communicated, and the medicine inlet and the medicine outlet are communicated through a tube cavity; the outer sleeve is made of PVDF materials through extrusion molding.

2. The composite reinforced epidural anesthesia catheter according to claim 1, wherein: the outer sleeve is transparent or semitransparent.

3. The composite reinforced epidural anesthesia catheter of claim 2, wherein: the loose sections are multiple in number and are arranged at intervals.

4. The composite reinforced epidural anesthesia catheter of claim 3, wherein: the inner diameter of the inner pipe is 0.50-0.55 mm, the outer diameter is 0.6-0.65 mm, and the length is 800-1200mm.

5. The composite reinforced epidural anesthesia catheter according to claim 4, which is characterized in that: the wire diameter of the spiral spring strip is 0.06mm; the outer diameter is 0.86mm.

6. The composite reinforced epidural anesthesia catheter of claim 5, wherein: the outer diameter of the outer sleeve is 2mm; the inner diameter is 1.4mm; the length is 800-1200mm.

7. The composite reinforced epidural anesthesia catheter of claim 6, wherein: the surface of the outer sleeve is provided with length scale printing identification lines.