CN117883671A

CN117883671A - Damage-preventing anesthetic tube

Info

Publication number: CN117883671A
Application number: CN202410111172.XA
Authority: CN
Inventors: 李朝东; 兰天星; 郭心馨; 卢言京
Original assignee: Linyi Xinghua Medical Equipment Co ltd
Current assignee: Linyi Xinghua Medical Equipment Co ltd
Priority date: 2024-01-25
Filing date: 2024-01-25
Publication date: 2024-04-16

Abstract

The utility model relates to a technical field of medical instrument discloses an anti-damage anesthesia pipe, and it includes the pipe body, the pipe body has the pipe wall, the pipe wall encloses into the lumen that supplies the medicine circulation, the inside first strengthening rib that is provided with of pipe body, first strengthening rib and the coaxial setting of pipe body, first strengthening rib passes through many second strengthening ribs and pipe wall fixed connection, many the second strengthening rib sets up along the circumference of first strengthening rib, many the second strengthening rib separates the lumen into a plurality of independent cavitys, be provided with the wire in the first strengthening rib, the wire is the linear type and extends along the length direction of pipe body, a plurality of communicating pipe cavitys and the outside play medicine mouth of pipe body have been seted up along the circumference to the pipe wall, a plurality of play medicine mouth sets up with a plurality of independent cavitys one-to-one. The utility model provides a can alleviate the anesthesia pipe and be difficult to carry the problem of prescribing out medicine position with the medicine after being scratched by the epidural needle.

Description

Damage-preventing anesthetic tube

Technical Field

The present application relates to the field of medical devices, and in particular to an atraumatic anesthetic catheter.

Background

Epidural injection is one method commonly used for producing local anesthetics.

Currently, during epidural injection, it is necessary to pass an anesthetic catheter into the epidural space and turn the catheter toward the head by penetrating the epidural needle space in the body. Because the epidural needle tip is typically sharp, the anesthetic catheter is easily scratched during placement of the catheter or withdrawal of the epidural needle. The anesthetic tube is made of high polymer materials, the breaking force is low, once the anesthetic tube is scratched in the process of placing the anesthetic tube or withdrawing the epidural needle, the breaking force suddenly drops, and the risk that the anesthetic tube breaks and stays in a patient in the process of pulling out the anesthetic tube is increased.

The Chinese patent publication No. CN112516434B discloses an anesthetic tube, which comprises a tube body, wherein the tube body is provided with a tube wall, the tube wall surrounds a medicine channel, the anesthetic tube also comprises a metal wire which is fixedly connected in the tube wall, and the metal wire is linear and extends along the length direction of the tube body; the catheter body has the medicine inlet end that supplies the medicine inflow to and the play medicine end that supplies the medicine outflow, and anesthesia catheter still includes the softening part that sets up with the catheter body is coaxial, and the hardness of softening part is less than the hardness of catheter body, and the one end and the play medicine end fixed connection of softening part, wire stretch into in the softening part, and with softening part fixed connection.

In view of the above-mentioned related art, the inventors considered that when the wall of the catheter body is scratched, the drug in the catheter flows out from the cleavage site, and that it is difficult to deliver the drug to the specified drug site after the anesthetic catheter is scratched by the epidural needle.

Disclosure of Invention

In order to alleviate the problem of difficulty in delivering a drug to a designated drug site after the outer wall of an anesthetic catheter is scratched by an epidural needle, the present application provides an atraumatic anesthetic catheter.

The application provides an atraumatic anesthesia pipe adopts following technical scheme:

the utility model provides an anti-damage anesthesia pipe, includes the pipe body, the pipe body has the pipe wall, the pipe wall encloses into the lumen that supplies the medicine circulation, the inside first strengthening rib that is provided with of pipe body, first strengthening rib and the coaxial setting of pipe body, first strengthening rib passes through many second strengthening ribs and pipe wall fixed connection, many the second strengthening rib sets up along the circumference of first strengthening rib, many the second strengthening rib separates the lumen into a plurality of independent cavities, be provided with the wire in the first strengthening rib, the wire is the linear type and extends along the length direction of pipe body, a plurality of communicating pipe cavities and the outside drug outlet of pipe body have been seted up to the pipe wall along circumference, a plurality of drug outlet and a plurality of independent cavity one-to-one setting.

By adopting the technical scheme, the first reinforcing ribs are arranged on the axis of the catheter body, the first reinforcing ribs are connected with the inner wall of the catheter body through the plurality of second reinforcing ribs arranged on the circumference of the first reinforcing ribs, the metal wires are arranged in the first reinforcing ribs, the metal wires have a strong memory function, the axial rigidity of the anesthetic catheter is improved under the synergistic effect of the metal wires, the first reinforcing ribs and the second reinforcing ribs, and when the catheter is curled for a long time, the packaging external force is removed, the anesthetic catheter can be quickly restored to a straight state; the multiple second strengthening ribs separate the lumen into multiple independent cavities, when the epidural needle scratches the anesthesia catheter, as the metal wire is arranged in the first strengthening rib on the axis of the anesthesia catheter, the maximum damage degree is cut off to half of the catheter body, the degree of the cut of the catheter is effectively reduced, the medicine can still be conveyed to the specified medicine position by partial independent cavities, the re-intubation is not needed, and the problem that the medicine is difficult to convey to the specified medicine position after the outer wall of the anesthesia catheter is scratched by the epidural needle is relieved.

Optionally, the catheter body, the first reinforcing ribs and the plurality of second reinforcing ribs are integrally formed.

Through adopting above-mentioned technical scheme, first strengthening rib, second strengthening rib and pipe body integrated into one piece improve the structural strength of anesthesia pipe body, improve the breaking force of pipe by a wide margin, and the anti bending property of pipe promotes, resumes straight state more easily when taking out from the packing, and the doctor of being convenient for inserts the operation.

Optionally, the metal wire is integrally formed with the first reinforcing rib in a high-pressure co-extrusion mode.

Through adopting above-mentioned technical scheme, wire and first strengthening rib integrated into one piece improves the compactness of being connected between first strengthening rib and the wire.

Optionally, the plurality of second reinforcing ribs are arranged at equal intervals along the circumferential direction of the first reinforcing rib.

Through adopting above-mentioned technical scheme, a plurality of second strengthening ribs set up along the equidistant circumference of first strengthening rib to make the structure of anesthesia pipe more reasonable, the staff of being convenient for uses.

Optionally, one end of catheter body length direction is the medicine end of intaking that supplies the medicine to flow in, catheter body length direction's the other end is provided with flexible end cap, the hardness of flexible end cap is less than catheter body's hardness, the one end that a plurality of independent cavitys were kept away from catheter body medicine end is kept away from to flexible end cap, flexible end cap and catheter body fixed connection.

By adopting the technical scheme, one end of the catheter body is fixedly connected with the flexible plug, and in the process of implanting the anesthetic catheter into a human body, the flexible plug is soft in material, so that the flexible plug can elastically deform according to a complex space in the human body, automatically change the direction, and guide the catheter body to a resistance gap so as to smoothly reach a wounded position; in addition, the hardness of the flexible plug is smaller than that of the catheter body, so that the fracture resistance of the flexible plug is higher than that of the catheter body, and the flexible plug can bear larger tensile force without fracture when the anesthetic catheter is pulled to be taken out.

Optionally, the tensile strength of the wire is less than the tensile strength of the catheter body.

By adopting the technical scheme, the tensile strength of the metal wire is smaller than that of the catheter body, that is, the breaking force of the metal wire is higher, the breaking elongation is far smaller than that of the catheter body, when the catheter is taken out and stretched by external force, the metal wire breaks firstly, the broken catheter along with the metal wire suddenly stretches, a very obvious feedback signal is given to an operator, and even if the continuous forced pulling action is stopped, the catheter is prevented from being broken into the body due to overlarge stress.

Optionally, the flexible plug is far away from the circular arc at one end of the catheter body, and the surface of the flexible plug is smooth.

By adopting the technical scheme, one end of the flexible plug, which is far away from the catheter body, is arc-shaped, so that the possibility that nerves, blood vessels and dura mater are damaged in the process of implanting an anesthetic catheter is reduced.

Optionally, be provided with the little camera in the flexible end cap, set up the line passageway in the first strengthening rib, the signal line of little camera is connected with external equipment through the line passageway.

Through adopting above-mentioned technical scheme, set up little camera in flexible end cap, little camera signal line is connected with external equipment through seting up the wiring passageway in first strengthening rib, and the accessible external equipment clearly observes the pipe head in the anesthesia pipe and puts into and take out the in-process and lie in the position, and the doctor can in time adjust to put into and take out speed and dynamics according to the condition of observing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first reinforcing ribs are arranged on the axis of the catheter body and are connected with the inner wall of the catheter body through the plurality of second reinforcing ribs arranged in the circumferential direction of the first reinforcing ribs, the metal wires are arranged in the first reinforcing ribs, the plurality of second reinforcing ribs divide the lumen into a plurality of independent cavities, when the epidural needle scratches an anesthesia catheter, the metal wires are arranged in the first reinforcing ribs positioned on the axis of the anesthesia catheter, the maximum damage degree is cut to half of the catheter body, the cut degree of the catheter is effectively reduced, part of the independent cavities can still convey the medicine to the appointed medicine position, re-intubation is not needed, and the problem that the medicine is difficult to convey to the appointed medicine position after the outer wall of the anesthesia catheter is scratched by the epidural needle is solved;

2. by fixedly connecting the flexible plug at one end of the catheter body, the flexible plug can elastically deform according to the complex space in the human body because the flexible plug is softer in the process of implanting the anesthesia catheter into the human body, and the flexible plug automatically changes the direction to guide the catheter body to the resistance gap so as to smoothly reach the injured position;

3. through setting up little camera in flexible end cap, little camera signal line is connected with external equipment through seting up the wiring passageway in first strengthening rib, and the accessible external equipment clearly observes the pipe head in the anesthesia pipe and puts into and take out the in-process and locate the position, and doctor can in time adjust to put into and take out speed and dynamics according to the condition of observing.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic view of the overall structure of an embodiment of the present application (some structures not shown);

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a cross-sectional view of an anesthetic tube in an embodiment of the present application;

fig. 4 is a schematic view of a drug outlet portion in an embodiment of the present application.

Reference numerals: 100. a catheter body; 110. a medicine outlet; 200. a first reinforcing rib; 210. a routing channel; 300. a second reinforcing rib; 400. a wire; 500. a flexible plug; 600. a micro camera.

Detailed Description

In order to more clearly illustrate the general concepts of the present application, the present application is described in further detail below in conjunction with fig. 1-4.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that, in the case of no conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

The embodiment of the application discloses an atraumatic anesthetic tube. Referring to fig. 1, 2 and 3, an atraumatic anesthetic catheter comprises a catheter body 100, the catheter body 100 having a wall enclosing a lumen for passage of a drug. The catheter body 100 is integrally formed with a first reinforcing rib 200 and three second reinforcing ribs 300; the first reinforcing ribs 200 are coaxially arranged with the catheter body 100, three second reinforcing ribs 300 are arranged along the circumferential direction of the first reinforcing ribs 200, and the first reinforcing ribs 200 are fixedly connected with the catheter wall through the three second reinforcing ribs 300. The first reinforcing rib 200 is provided therein with a wire 400, and the wire 400 is linear and extends along the length direction of the catheter body 100.

Through setting up wire 400 in first strengthening rib 200, wire 400 has stronger memory function, under the synergism of wire 400 and first strengthening rib 200 and second strengthening rib 300, improves the axial rigidity of anesthesia pipe, when the pipe is curled for a long time and is withdrawn the packing external force, can resume straight state fast.

Referring to fig. 2, 3 and 4, the three second reinforcing ribs 300 divide the lumen into three independent cavities, and the three communicating tube cavities and the drug outlet 110 outside the catheter body 100 are circumferentially provided on the tube wall, and the three drug outlet 110 are arranged in one-to-one correspondence with the three independent cavities.

When the epidural needle scratches the anesthetic catheter, the wire 400 is arranged in the first reinforcing rib 200 positioned on the axis of the anesthetic catheter, so that the maximum damage degree is half of that of the catheter body 100, and the degree of the incised wound of the catheter is effectively reduced. In this embodiment, when the catheter body 100 is cut to the intermediate position, an independent cavity is still capable of continuing to deliver the drug without re-catheterization, and the problem that the drug is difficult to deliver to the specified drug-delivering position after the outer wall of the anesthetic catheter is scratched by the epidural needle is alleviated.

In other preferred embodiments, the number of the second reinforcing ribs 300 may be four or more, and the lumen is divided into a corresponding number of independent cavities according to the number of the second reinforcing ribs 300, and each independent cavity has a drug outlet 110 corresponding to the independent cavity.

Referring to fig. 1, a catheter body 100, a first reinforcing rib 200, and a plurality of second reinforcing ribs 300 are integrally formed. Through first strengthening rib 200, second strengthening rib 300 and catheter body 100 integrated into one piece, improve the structural strength of anesthesia catheter body 100, improve the breaking force of catheter body 100 by a wide margin, the bending resistance of anesthesia catheter can further promote, resumes straight state more easily when taking out from the packing, the doctor of being convenient for puts into the operation.

Referring to fig. 1, the metal wire 400 is integrally formed with the first reinforcing rib 200 in a high-pressure co-extrusion manner, and a high-pressure co-extrusion process is adopted, so that the assembly of the metal wire 400 and the first reinforcing rib 200 is simpler and more convenient, the manufacturing difficulty is reduced, the productivity is improved, and the performances of strength, rigidity and the like of the anesthetic tube can be ensured.

Referring to fig. 3, three second reinforcing beads 300 are disposed at equal intervals in the circumferential direction of the first reinforcing bead 200. Through arranging three second strengthening ribs 300 at equal intervals along the circumference of the first strengthening rib 200, the pipe wall is supported most stably, the structure of the anesthesia catheter is more reasonable, the bending resistance of the anesthesia catheter is ensured, and the anesthesia catheter is convenient for staff to use.

Referring to fig. 1, one end of the catheter body 100 in the length direction is a drug inlet end for flowing in a drug, the other end of the catheter body 100 in the length direction is provided with a flexible plug 500, the hardness of the flexible plug 500 is smaller than that of the catheter body 100, the flexible plug 500 seals one end of the plurality of independent cavities far away from the drug inlet end of the catheter body 100, and the flexible plug 500 is fixedly connected with the catheter body 100.

By fixedly connecting the flexible plug 500 to one end of the catheter body 100, the flexible plug 500 can elastically deform according to the complex space in the human body because the flexible plug 500 is made of softer materials in the process of implanting the anesthetic catheter into the human body, and automatically change the direction to guide the catheter body 100 to the resistance gap so as to smoothly reach the injured position; in addition, the hardness of the flexible stopper 500 is smaller than that of the catheter body 100, so that the fracture resistance of the flexible stopper 500 is higher than that of the catheter body 100, and the flexible stopper 500 can bear a large tensile force without fracture when the anesthetic catheter is pulled out.

Referring to fig. 1, an end of the flexible stopper 500 remote from the catheter body 100 is arc-shaped, and the surface of the flexible stopper 500 is smooth. By providing the flexible plug 500 with an arcuate shape at the end distal from the catheter body 100, the likelihood of damage to nerves, blood vessels, and dura mater during implantation of an anesthetic catheter is reduced.

The tensile strength of the wire 400 is smaller than that of the catheter body 100, that is, the breaking force of the wire 400 is higher, the breaking elongation is far smaller than that of the catheter body 100, when the catheter is taken out and is elongated by external force, the wire 400 breaks first, the broken catheter of the wire 400 is suddenly elongated, a very obvious feedback signal is given to an operator, and even if the pulling-out action is stopped, the catheter is prevented from being broken into the body due to overlarge stress.

Referring to fig. 2, in a preferred embodiment, a micro camera 600 is disposed in the flexible plug 500, a routing channel 210 is disposed in the first reinforcing rib 200, and a signal line of the micro camera 600 is connected to an external device through the routing channel 210. Through setting up little camera 600 in flexible end cap 500, little camera 600 signal line is connected with external equipment through seting up the wiring passageway 210 in first strengthening rib 200, and the accessible external equipment clearly observes the pipe head in the anesthesia pipe is put into and is taken out the in-process and is located the position, and doctor can in time adjust to put into and take out speed and dynamics according to the condition of observing.

In addition, the metal wire 400 is arranged in the center of the catheter, the development effect of the metal wire 400 is far higher than that of a conventional developer, and even if the anesthetic catheter is divided into a body, the residual position of the anesthetic catheter can be judged through the technologies such as medical imaging, so that the risk judgment and the taking-out operation are facilitated. Meanwhile, the problem that the conventional developer is separated out and mixed into liquid medicine or is in contact with human tissues is solved.

The non-mentioned places in the application can be realized by adopting or referring to the prior art. Thereby solving the problems that the pulling force is not well grasped in the process of pulling out anesthesia, and the elongation of the catheter is misjudged as the whole catheter moves outwards.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides an anti-injury anesthesia pipe, includes the pipe body, the pipe body has the pipe wall, the pipe wall encloses into the lumen that supplies the medicine to circulate, its characterized in that, the inside first strengthening rib that is provided with of pipe body, first strengthening rib and the coaxial setting of pipe body, first strengthening rib passes through many second strengthening ribs and pipe wall fixed connection, many the second strengthening rib sets up along the circumference of first strengthening rib, many the second strengthening rib separates the lumen into a plurality of independent cavitys, be provided with the wire in the first strengthening rib, the wire is the linear type and extends along the length direction of pipe body, a plurality of communicating pipe cavitys and the outside play medicine mouth of pipe body have been seted up along circumference to the pipe wall, a plurality of play medicine mouth and a plurality of independent cavitys one-to-one set up.

2. An atraumatic anesthetic catheter as set forth in claim 1, wherein: the catheter body, the first reinforcing ribs and the second reinforcing ribs are integrally formed.

3. An atraumatic anesthetic catheter as set forth in claim 1, wherein: the metal wire is integrally formed with the first reinforcing rib in a high-pressure co-extrusion mode.

4. An atraumatic anesthetic catheter as set forth in claim 1, wherein: the second reinforcing ribs are arranged at equal intervals along the circumferential direction of the first reinforcing rib.

5. An atraumatic anesthetic catheter as set forth in claim 1, wherein: the one end of pipe body length direction is the medicine end of feeding that supplies the medicine to flow in, pipe body length direction's the other end is provided with flexible end cap, the hardness of flexible end cap is less than the hardness of pipe body, the one end that a plurality of independent cavitys were kept away from pipe body medicine end is kept away from to flexible end cap, flexible end cap and pipe body fixed connection.

6. An atraumatic anesthetic catheter as set forth in claim 1, wherein: the tensile strength of the wire is less than the tensile strength of the catheter body.

7. An atraumatic anesthetic catheter as set forth in claim 5, wherein: the flexible plug is far away from the arc-shaped end of the catheter body, and the surface of the flexible plug is smooth.

8. An atraumatic anesthetic catheter as set forth in claim 5, wherein: the flexible plug is internally provided with a micro-camera, the first reinforcing rib is internally provided with a wiring channel, and a signal wire of the micro-camera is connected with external equipment through the wiring channel.