CN219646491U - Anesthesia catheter capable of being bent directionally and anesthesia device - Google Patents

Abstract

The utility model provides an anesthetic tube capable of being bent directionally and an anesthetic device, which comprises a tube body, wherein the inner wall of the tube body surrounds to form a medicine channel, the tube body can be bent, the anesthetic tube also comprises a plurality of temperature control adjusting wires which are arranged between the inner wall of the tube body and the outer wall of the tube body, and the temperature control adjusting wires extend along the tube body and are distributed at intervals in the radial direction of the tube body; the catheter body is made of thermoplastic elastomer materials, the hot end and the cold end are respectively formed by two temperature control adjusting wires which are axisymmetric along the catheter body, and the temperatures of the temperature control adjusting wires are sequentially increased from the cold end to the hot end in the radial direction of the catheter body, so that the catheter body has a tendency of bending towards the cold end, the directional bending of the anesthesia catheter can be realized, and the anesthesia catheter is prevented from puncturing the hard ridge to the greatest extent.

Description

Anesthesia catheter capable of being bent directionally and anesthesia device

Technical Field

The utility model relates to the technical field of medical anesthesia apparatuses, in particular to an anesthesia catheter capable of being bent in a directional mode and an anesthesia device.

Background

The epidural nerve block is an anesthesia method widely applied clinically, has the advantages of being simple to operate, low in cost, easy to manage in operation, convenient to carry out epidural analgesia after operation and the like, and the main components used in the anesthesia method are anesthesia catheters, wherein the anesthesia catheters are very thin because the anesthesia catheters need to be placed in a narrow epidural space, the outer diameter is generally not more than 1mm, the anesthesia catheters are small in size and need to be placed in the epidural space, good axial rigidity is needed, the anesthesia catheters are usually made of high-hardness polymer materials, the head end needs to be a blind end, the head end is harder after treatment, the operation is careless, the epidural space is extremely easy to puncture, the epidural space is filled with small blood vessels, and the hard head end is easy to damage blood vessels or nerves.

At present, although the anesthesia catheter in the prior art is provided with a soft head end, in order to keep the anesthesia catheter to be enough rigid in the process of implantation, only a certain hardness can be reduced, but the softness enough to prevent the damage of capillary vessels cannot be made. After the anesthetic tube is placed in the epidural space perpendicular to the back, the direction of the anesthetic tube needs to be changed by 90 degrees, and the anesthetic tube is continuously advanced by about 5cm towards the head direction of the human body. In the prior art, the hardness of the anesthetic tube is affected by the temperature of the human body, the external temperature and the implantation speed in the process of being implanted into the human body, the temperature change of the anesthetic tube cannot be controlled, the specific hardness of each part of the anesthetic tube cannot be controlled, the bending direction and the bending degree of each part of the anesthetic tube cannot be controlled, the directional bending of the anesthetic tube cannot be realized, after the anesthetic tube enters the epidural space, the anesthetic tube cannot move towards the head of the human body according to the preset bending direction, and the conditions of puncturing the dura mater or knotting and bending are easy to occur.

Accordingly, there is a need for further improvements and enhancements in the art.

Disclosure of Invention

The utility model provides an anesthetic tube capable of being bent in a directional mode and an anesthetic device, and aims to solve at least one technical problem among the technical problems.

The technical scheme adopted by the utility model is as follows:

in one aspect, the utility model provides an anesthetic tube capable of being bent in a directional manner, which comprises a tube body, wherein the inner wall of the tube body surrounds a drug channel, the tube body is bendable, and the anesthetic tube further comprises a plurality of temperature control adjusting wires arranged between the inner wall of the tube body and the outer wall of the tube body, wherein the temperature control adjusting wires extend along the tube body and are distributed at intervals in the radial direction of the tube body; the catheter body is made of thermoplastic elastomer materials, a hot end and a cold end are respectively formed by two temperature control adjusting wires which are axisymmetric along the catheter body, and the temperatures of the temperature control adjusting wires are sequentially increased from the cold end to the hot end in the radial direction of the catheter body, so that the catheter body has a tendency of bending towards the cold end.

As a preferred embodiment of the present utility model, a plurality of the temperature control adjusting wires are formed with a high heat zone, a middle heat zone, and a high cold zone, respectively, from the hot end to the cold end.

In a preferred embodiment of the present utility model, the area of the high-heat zone and the high-cold zone is smaller than the area of the medium-heat zone and the medium-cold zone on the cross section of the catheter body.

As a preferred embodiment of the utility model, the high-temperature zone and the high-temperature zone are symmetrically arranged along the radial direction of the catheter body, and the middle-temperature zone are symmetrically arranged along the radial direction of the catheter body.

As a preferred embodiment of the present utility model, the temperature adjustable ranges of the high cooling zone, the intermediate heating zone and the high heating zone are respectively: 25-37 ℃, 27-33 ℃, 33-38 ℃ and 38-40 ℃.

As a preferred embodiment of the present utility model, the anesthetic tube further includes a plurality of temperature measuring members disposed in the high-temperature region, the middle-temperature region, and the high-temperature region, respectively.

As a preferred embodiment of the present utility model, the temperature control regulating wire has a cylindrical shape.

As a preferred embodiment of the utility model, the axial distance between the head ends of the temperature control adjusting wires and the head end of the catheter body is 1-5 mm.

As a preferred embodiment of the utility model, a spiral supporting wire is arranged between the inner wall of the catheter body and the outer wall of the catheter body, and the spiral supporting wire and the plurality of temperature control adjusting wires are arranged in a staggered manner.

On the other hand, the utility model also provides an anesthesia device which is suitable for the anesthesia catheter, the anesthesia device comprises a temperature control assembly, the temperature control assembly comprises a temperature display device and a multi-stage temperature control device which are connected with each other, the multi-stage temperature control device is respectively connected with a plurality of temperature control adjusting wires, and the temperature control adjusting wires can be subjected to temperature adjustment.

By adopting the technical scheme, the utility model has the following technical effects:

1. the utility model provides an anesthetic tube capable of being bent directionally, which is characterized in that the tube body is made of thermoplastic elastomer material, so that the tube body is sensitive to temperature change, the softness and hardness degree and deformation capacity of the tube body can be changed according to the temperature change, and a plurality of temperature control regulating wires are arranged between the inner wall and the outer wall of the tube body, so that the tube body can deform along with the temperature change of the temperature control regulating wires; the two temperature control adjusting wires which are axisymmetric along the catheter body are respectively provided with a hot end and a cold end, the temperature is sequentially increased from the cold end to the hot end in the radial direction of the catheter body, and the deformation of the catheter body is larger as the temperature is higher, so that the catheter body has a tendency of bending towards the cold end; further, in the process of placing the anesthetic tube into a human body, the anesthetic tube is adjusted so that the hot end is positioned at the lower part of the anesthetic tube, and the cold end is positioned at the upper part of the anesthetic tube, so that the tube body has a tendency of bending deformation towards the cold end, the anesthetic tube is naturally bent upwards at the dura mater, and the directional bending of the anesthetic tube can be ensured to the greatest extent; further, the temperature control adjusting wires are arranged, so that the temperature change between the hot end and the cold end is more balanced, not only can the temperature of each part of the catheter body be adjusted and controlled, but also the deformation process of the catheter body is more gentle, the compression of the catheter body on capillaries and nerves of the dura mater wall can be further reduced in the upward bending process of the catheter body, and the catheter body can be prevented from piercing the dura mater arm to the greatest extent.

2. As a preferred embodiment of the utility model, the plurality of temperature control adjusting wires are respectively formed with a high-temperature zone, a middle-temperature zone and a high-temperature zone from the hot end to the cold end, so that the temperature change between the hot end and the cold end can be partitioned, the temperature change of the catheter body can be more balanced, and the bending deformation of the catheter body is more gentle; and the area of the area formed by the high-heat area and the high-cold area is smaller than that of the area formed by the medium-heat area and the medium-cold area, so that the bending degree of the high-heat area and the high-cold area of the catheter body can be controlled, the deformation degree of the high-heat area and the high-cold area is smaller than that of the medium-heat area and the medium-cold area, the bending phenomenon of the catheter body caused by overlarge stroke degree can be reduced, the bending of the catheter body is more natural, and the circulation of liquid medicine is smoother.

3. As a preferred implementation mode of the utility model, the high-temperature cold area, the medium-temperature hot area and the high-temperature hot area are respectively arranged in the temperature ranges of 25-27 ℃, 27-33 ℃, 33-38 ℃ and 38-40 ℃, and the lowest temperature of the high-temperature cold area is lower than the temperature of a human body, so that the influence of the temperature of the human body on the high-temperature cold area can be reduced to a certain extent; the highest temperature of the high-temperature area is higher than the temperature of a human body, so that the softness of the catheter body is higher through the temperature change of the high-temperature area, and the bending efficiency of the catheter body is improved.

4. As a preferred embodiment of the utility model, the axial distance between the head end of the temperature control regulating wire and the head end of the catheter body is 1-5mm, so that the head end position of the catheter body is influenced by the temperature of a human body to the greatest extent, the influence of the temperature change of the temperature control regulating wire on the head end of the catheter body can be avoided, the head end axial distance part of the catheter body can deform depending on the temperature of the human body, and the head end of the catheter body is always in a soft state under the influence of the temperature of the human body to the greatest extent.

5. As a preferred implementation mode of the utility model, the spiral supporting wire is arranged between the inner wall and the outer wall of the catheter body, so that the supporting performance of the catheter body can be improved to a certain extent, and the situation that the catheter body is not flattened when extending into a human body can be ensured to the greatest extent; and, because the anesthesia catheter itself has flexibility, when the anesthesia catheter is in the state of accomodating, can ensure the catheter body in the same maximum extent can not produce the condition of flattening because of external factor, and then can ensure the unobstructed of medicine passageway.

Drawings

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

FIG. 1 is a schematic view of an anesthetic tube and an anesthetic device capable of being bent in a directional manner;

FIG. 2 is a schematic view of an anesthetic tube according to the present utility model;

fig. 3 is a schematic structural view of another anesthetic tube according to the present utility model.

Reference numerals:

100 catheter body, 101 medicine channel, 102 temperature control regulating wire, 1021 cold end regulating wire, 1022 cold wire, 1023 hot wire, 1024 hot end regulating wire, 103 high-heat zone, 104 high-cold zone, 105 middle-cold zone, 106 middle-heat zone, 107 transition zone, 108 spiral supporting wire, 109 temperature measuring piece;

200 anesthesia devices, 201 multi-stage temperature control devices and 202 temperature display devices.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1, the utility model provides an anesthetic tube capable of being bent in an oriented manner, which comprises a tube body 100, wherein a drug channel 101 is formed by enclosing the inner wall of the tube body 100, the tube body 100 is bendable, the anesthetic tube further comprises a plurality of temperature control adjusting wires 102 arranged between the inner wall of the tube body 100 and the outer wall of the tube body 100, and the temperature control adjusting wires 102 extend along the tube body 100 and are distributed at intervals in the radial direction of the tube body 100.

The catheter body 100 is made of thermoplastic elastomer material, a hot end and a cold end are respectively formed along two temperature control adjusting wires 102 axisymmetric to the catheter body 100, and the temperatures of the temperature control adjusting wires 102 are sequentially increased from the cold end to the hot end in the radial direction of the catheter body 100, so that the catheter body 100 has a tendency of bending towards the cold end, and the bending of the catheter body is directionally controlled.

Further, the temperature control adjusting wire 102 may be made of copper wire or other materials with heat conducting property, so as to improve the heat conducting property of the temperature control adjusting wire 102, further improve the sensitivity of the catheter body to temperature, and improve the deformation efficiency of the anesthetic catheter during temperature change.

It will be appreciated that the "hot" and "cold" of the hot side and the cold side are descriptions of the temperatures provided by both the hot side and the cold side, with a temperature differential between the hot side and the cold side, rather than the hot side heating, and the cold side cooling.

As a specific embodiment of the present utility model, the plurality of temperature control adjusting wires 102 are respectively formed with the high-heat area 103, the medium-heat area 106, the medium-heat area 105 and the high-cold area 104 from the hot end to the cold end, so that the temperature of each temperature area can be adjusted, and the deformation of the catheter body 100 is more balanced and gentle.

As shown in fig. 2, as a specific embodiment of the present utility model, the temperature control adjusting wire 102 may be cylindrical, the temperature control adjusting wire 102 may be divided into a cold end adjusting wire 1021, an intermediate cooling wire 1022, a middle cooling wire 1023, and a hot end adjusting wire 1024, the hot end adjusting wire 1024 and the cold end adjusting wire 1021 are respectively formed with the hot end and the cold end, the hot end and the cold end are respectively formed with a high heat area 103 and a high cold area 104, the intermediate cooling wire 1022 is formed with an intermediate cooling area 105, and the middle cooling wire 1023 is formed with a middle cooling area 106.

It is to be understood that the high-temperature area 103, the high-temperature area 104, the middle-temperature area 105 and the middle-temperature area 106 may be respectively provided with a plurality of temperature-control adjusting wires 102, and the temperatures of the temperature-control adjusting wires 102 in the temperature areas are respectively the same, so that the temperatures of the high-temperature area 103, the high-temperature area 104, the middle-temperature area 105 and the middle-temperature area 106 can be controlled in a proper range to the greatest extent.

As shown in fig. 3, as another embodiment of the present utility model, the difference from the above embodiment is that the hot end adjusting filament 1024 forms a high heat area 103 with the medium heat filament 1023, the medium heat filament 1023 forms a transition area 107 with the medium cold filament 1022, and the medium cold filament 1022 forms a high cold area 104 with the cold end adjusting filament 1021; wherein the transition zone 107 corresponds to the combination of the intermediate cooling zone 105 and the intermediate cooling zone 106, and can have an effect of making the temperature transition between the high-temperature zone 103 and the high-temperature zone 104 more gentle.

It can be appreciated that, whether the temperature control adjusting wire 102 forms a temperature region by itself or the adjacent temperature control adjusting wires 102 enclose a temperature region, the temperature change between the hot end and the cold end is divided, so that the temperature change is more gentle, and the temperature and the hardness of each part of the catheter body 100 are controlled, so as to achieve the effect of more gently bending the catheter body 100 in a directional manner. And, as shown in fig. 2 and 3, in order to facilitate understanding of the content of the present utility model, the present utility model will divide each of the different temperature regions by a dotted line.

In order to facilitate the description of the subsequent structure, in the present utility model, the temperature control adjustment 102 may be divided into a cold end adjustment filament 1021, an intermediate cooling filament 1022, a middle cooling filament 1023, and a hot end adjustment filament 1024 to form the high cooling zone 104, the intermediate cooling zone 105, the middle cooling zone 106, and the high heating zone 103, respectively.

Further, on the cross section of the catheter body 100, the areas formed by the high-temperature zone 103 and the high-temperature zone 104 are smaller than the areas formed by the middle-temperature zone 106 and the middle-temperature zone 105, so that the bending degree of the high-temperature zone 103 and the high-temperature zone 104 is reduced, and the bending phenomenon of the catheter body 100 is reduced.

As an alternative embodiment of the present utility model, the high-heat area 103 and the high-cold area 104 are symmetrically arranged along the radial direction of the catheter body 100, and the medium-heat area 106 and the medium-cold area 105 are symmetrically arranged along the radial direction of the catheter body 100, so that the area of the high-heat area 103 and the area of the high-cold area 104 are the same, the area of the medium-heat area 106 and the area of the medium-cold area 105 are the same, and the bending deformation of the catheter body 100 can be more gentle.

As a specific embodiment of the present utility model, the temperature adjustable ranges of the high cooling zone, the middle heating zone and the high heating zone are respectively: 25-37 ℃, 27-33 ℃, 33-38 ℃ and 38-40 ℃. The temperature ranges of the high-heat area 103, the medium-heat area 106, the medium-heat area 105, and the high-cold area 104, that is, the adjustable temperature ranges of the hot-end adjusting wires 1024, the medium-heat area 1023, the medium-heat area 1022, and the cold-end adjusting wires 1021.

It can be seen that each temperature region has a certain temperature variation range, and adjacent temperature regions have the same starting temperature and ending temperature, so that the influence of the temperature radiation ranges of the plurality of temperature control adjusting wires 102 on each temperature region can be reduced to a certain extent.

Further, the anesthetic tube further includes a plurality of temperature measuring members 109, and the plurality of temperature measuring members 109 are disposed in the high-temperature region 103, the medium-temperature region 106, the medium-temperature region 105, and the high-temperature region 104, respectively. Optionally, the temperature measuring element 109 may be a temperature sensor, so that temperatures of the high-temperature area 103, the medium-temperature area 106, the medium-temperature area 105 and the high-temperature area 104 may be detected in real time.

As a preferred embodiment of the present utility model, the head ends of the temperature control wires 102 are each spaced apart from the head end of the catheter body 100 by an axial distance of 1-5 mm. It can be appreciated that the temperature control adjusting wire 102 does not penetrate into the axial space, so that the head end of the catheter body 100 is only affected by the human body temperature to the greatest extent, and the head end of the catheter body 100 is always in a soft state under the influence of the human body temperature, so that the damage of the catheter body 100 to the dura mater wall is reduced to a certain extent.

As shown in fig. 1, as an alternative embodiment of the present utility model, a spiral supporting wire 108 is disposed between the inner wall of the catheter body 100 and the outer wall of the catheter body 100, and the spiral supporting wire 108 is disposed in a dislocation manner with respect to the plurality of temperature control adjusting wires 102.

It will be appreciated that the number of spiral support wires is not particularly limited and may be disposed around the outer surface of the temperature control wire 102.

As shown in fig. 1, the present utility model further provides an anesthesia apparatus 200, which is suitable for an anesthesia catheter, the anesthesia apparatus 200 includes a temperature control assembly, the temperature control assembly includes a temperature display device 202 and a multi-stage temperature control device 201 connected to each other, and the multi-stage temperature control device 201 is respectively connected to a plurality of temperature control adjusting wires 102, so as to be capable of adjusting the temperature of the temperature control adjusting wires 102.

The multi-stage temperature control device 201 may be respectively connected to the hot end adjusting wire 1024, the medium heat wire 1023, the medium cold wire 1022 and the cold end adjusting wire 1021, and may respectively perform temperature adjustment on the hot end adjusting wire 1024, the medium heat wire 1023, the medium cold wire 1022 and the cold end adjusting wire 1021, so that the temperature range of the catheter body 100 gradually decreases from the hot end to the cold end, and the multi-stage temperature control device 201 may be wirelessly connected to the plurality of temperature measuring pieces 109, so as to obtain real-time temperatures of the high-temperature area 103, the medium heat area 106, the medium cold area 105 and the high-temperature area 104, and adjust temperature intervals that do not meet temperature standards through the multi-stage temperature control device 201; the temperature display device 202 may display the temperatures of the stages of the multi-stage temperature control device 201, so that the temperatures of the stages can be adjusted more accurately.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (10)

1. The anesthetic catheter capable of being bent directionally comprises a catheter body, wherein a medicine channel is formed by encircling the inner wall of the catheter body, and the catheter body can be bent;

the catheter body is made of thermoplastic elastomer materials, a hot end and a cold end are respectively formed along two temperature control adjusting wires which are axisymmetric to the catheter body, and the temperature of the temperature control adjusting wires is sequentially increased from the cold end to the hot end in the radial direction of the catheter body, so that the catheter body has a tendency of bending towards the cold end.

2. An anesthetic tube capable of directional bending as recited in claim 1, wherein a plurality of said temperature control filaments are formed with a high heat zone, a medium heat zone, and a high cold zone, respectively, from said hot end to said cold end.

3. An anesthetic tube capable of directional bending as recited in claim 2, wherein said high heat zone and said high cold zone each have a smaller area than an area of said medium heat zone and said medium cold zone in a cross section of said tube body.

4. An anesthetic tube capable of directional bending as recited in claim 3, wherein said high heat zone and said high cold zone are radially symmetrically disposed along said tube body and said medium heat zone and said medium cold zone are radially symmetrically disposed along said tube body.

5. The directionally bendable anesthetic tube as claimed in claim 4, wherein the high cooling zone, the middle heating zone and the high heating zone have temperature adjustable ranges of: 25-37 ℃, 27-33 ℃, 33-38 ℃ and 38-40 ℃.

6. The directionally bendable anesthetic tube of claim 5, further comprising a plurality of thermometers disposed in the high heat zone, the medium cold zone, and the high cold zone, respectively.

7. An anesthetic tube capable of directional bending as recited in claim 1, wherein said temperature control wire is cylindrical.

8. The directionally bendable anesthetic tube of claim 7, wherein the plurality of temperature control adjustment wires each have an axial spacing of 1-5mm from the head end of the tube body.

9. The anesthesia catheter capable of being bent in an oriented mode according to claim 8, wherein a spiral supporting wire is arranged between the inner wall of the catheter body and the outer wall of the catheter body, and the spiral supporting wire is arranged in a staggered mode with the temperature control adjusting wires.

10. An anaesthetic apparatus adapted for use in an anaesthetic catheter as claimed in any one of claims 1-9 wherein the anaesthetic apparatus comprises a temperature control assembly comprising an interconnecting temperature display device and a multi-stage temperature control device, the multi-stage temperature control device being respectively connected to a plurality of temperature control adjustment wires, the temperature control adjustment wires being capable of temperature adjustment.