CN111001069A - Exchange guide rod of tracheal catheter and application - Google Patents
Exchange guide rod of tracheal catheter and application Download PDFInfo
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- CN111001069A CN111001069A CN201911103291.6A CN201911103291A CN111001069A CN 111001069 A CN111001069 A CN 111001069A CN 201911103291 A CN201911103291 A CN 201911103291A CN 111001069 A CN111001069 A CN 111001069A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- 239000000741 silica gel Substances 0.000 claims description 16
- 229910002027 silica gel Inorganic materials 0.000 claims description 16
- 210000003437 trachea Anatomy 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 9
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- 229920005989 resin Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000002627 tracheal intubation Methods 0.000 abstract description 8
- 229920001296 polysiloxane Polymers 0.000 description 9
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- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
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- 238000003780 insertion Methods 0.000 description 2
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- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- 229940124645 emergency medicine Drugs 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
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- Biomedical Technology (AREA)
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- Engineering & Computer Science (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses an exchange guide rod of a tracheal catheter and application thereof, and relates to the technical field of medical instruments. An exchange guide rod of a tracheal catheter comprises an inner rod core and an outer hose sleeved on the periphery of the inner rod core, wherein the outer hose comprises a fixed section and a movable section; the fixed section is fixedly arranged on the inner rod core; the movable section is connected with the fixed section through a connecting joint or is connected on the inner rod core through a limiting part, the movable section is separated from the fixed section through the connecting joint or is pulled out relative to the inner rod core to be prolonged after the limiting of the limiting part is removed through applying external force, and the movable section of the outer hose after being pulled out can form a flexible guiding section. The endotracheal tube exchange guide rod provided by the invention is improved based on the existing intubation guide core, and has the advantages of good flexibility, strong universality, convenience in operation and easiness in obtaining.
Description
Technical Field
The invention relates to the technical field of medical instruments.
Background
The tracheal intubation is closely related to other clinical subjects, is an important basic technical skill in the work of emergency medicine, critical medicine, anesthesia medicine and the like, and has very important significance for reconstructing a respiratory channel, effectively performing manual or mechanical ventilation, preventing hypoxia and carbon dioxide retention, removing respiratory tract secretion or foreign matters, administrating drugs in an airway, safely transporting, ensuring that rescue success reduces the fatality rate and improving prognosis. The trachea cannula is used for intubation and tube replacement, and because the traditional trachea cannula is relatively soft as the intubation tube, a guide core is generally required to be used during intubation and tube replacement, and various trachea cannula guide cores are also provided in the prior art.
The trachea cannula guide core is mainly used for shaping a trachea catheter in the trachea cannula process clinically, so that the shape of the trachea catheter is smoothly inserted into an airway. According to clinical needs, the tracheal intubation guide core used clinically at present is generally composed of a tube body made of medical high polymer materials and a metal wire, and is disposable, convenient to produce and low in price.
However, the current guiding core of the tracheal cannula has a single function, is limited to molding, and is relatively deficient in the functions of many special cases clinically encountered, for example: when the tracheal catheter is replaced, the length of the guide core of the conventional tracheal cannula is insufficient. Since the operation of replacing an endotracheal tube is of great importance, as an example, a special endotracheal tube is required for the purpose of satisfying a particular operation and purpose, and the conversion between various tubes is inevitably involved. The exchange guide core used at present is almost all various plastic rods which are simple to manufacture, the texture of the exchange guide core is hard, the air passage mucosa can be damaged, the flexibility is poor, and the operation is influenced because the exchange guide core cannot be shaped; meanwhile, the model is single, the universality is poor, and the operation is inconvenient.
How to provide good, the commonality of flexibility, convenient operation's endotracheal tube exchanger based on current trachea cannula equipment is the technical problem that needs to solve at present.
Disclosure of Invention
The invention aims to: overcomes the defects of the prior art and provides an exchange guide rod of a tracheal catheter and application thereof. The endotracheal tube exchange guide rod provided by the invention is improved based on the existing intubation guide core, and has the advantages of good flexibility, strong universality, convenience in operation and easiness in obtaining.
In order to achieve the above object, the present invention provides the following technical solutions:
an exchange guide rod of a tracheal catheter comprises an inner rod core and an outer hose sleeved on the periphery of the inner rod core, wherein the outer hose comprises a fixed section and a movable section; the fixed section is fixedly arranged on the inner rod core;
the movable section is connected with the fixed section through a connecting joint or is connected on the inner rod core through a limiting part, the movable section is separated from the fixed section through the connecting joint or is pulled out relative to the inner rod core to be prolonged after the limiting of the limiting part is removed through applying external force, and the movable section of the outer hose after being pulled out can form a flexible guiding section.
Furthermore, the limiting part is one or more elastic bodies arranged on the inner wall of the movable section, and the movable section can be limited at any position of the inner rod core through the elastic bodies;
the elastic body is a silica gel block, a silica gel tube or a silica gel ring.
Furthermore, the limiting part comprises an upper joint, a silica gel fixing ring and a lower joint, the upper joint is arranged on the inner rod core and is close to the fixed section, and the lower joint is arranged at the front end of the movable section and is used for being connected with or separated from the upper joint;
form the cavity in order to hold the silica gel retainer plate between lower clutch and the interior excellent core, the silica gel retainer plate is installed on the lower clutch, the arbitrary position of excellent core including the lower clutch is spacing on including the excellent core and can be under the pressure effect to the fixed snare of silica gel.
Furthermore, a first limiting structure is arranged at the tail end of the inner rod core, a second limiting structure is arranged at the front end of the movable section, and the first limiting structure is matched with the second limiting structure;
when the front end of the movable section is pulled out to the tail end position of the inner rod core relative to the inner rod core, the first limiting structure and the second limiting structure are fixed to prevent the movable section from being separated from the inner rod core.
Furthermore, the first limiting structure is a telescopic block or an opening, and the second limiting structure is a corresponding opening or a corresponding telescopic block matched with the telescopic block or the opening; when the front end of the movable section is pulled out to the tail end position of the inner rod core relative to the inner rod core, the telescopic block extends out of the opening to be limited due to the existence of the opening, so that the movable section is prevented from being separated from the inner rod core;
or the first limiting structure comprises an annular clamping groove, and the second limiting structure is a clamping ring matched with the clamping groove; when the front end of the movable section is pulled out to the tail end of the inner rod core relative to the inner rod core, the clamping ring is embedded into the clamping groove to form a clamping structure, and the movable section is prevented from being separated from the inner rod core.
Furthermore, the connecting joint is an easy-to-tear structure comprising a tear strip, the fixed section and the movable section are connected through the tear strip, and the end of the tear strip is provided with an easy-to-pull opening or an easy-to-pull head so as to peel off the tear strip.
The inner rod core is a stainless steel wire strip and can provide supporting force when the tracheal catheter is inserted. The outer hose can also be provided with scale marks.
The invention also provides a tracheal intubation component which comprises a tracheal catheter and a tracheal catheter guide core, wherein the tracheal catheter guide core is the exchange guide rod in any one of the preceding items.
Further, the endotracheal tube is soft resin and has spiral steel wire in the wall, the length of exchange guide stick is greater than the length of endotracheal tube.
The invention also provides a tracheal catheter replacing method of the exchange guide rod, which comprises the following steps:
after the movable section is separated from the fixed section by operation, the movable section of the outer hose is pulled out relative to the inner rod core to be extended, and the pulled-out movable section of the outer hose forms a flexible guide section;
inserting the end of the movable section of the outer hose into the tracheal catheter to be replaced and extending the movable section of the outer hose into the middle-lower section of the trachea;
withdrawing the tracheal catheter to be replaced and retaining the exchange guide rod;
and sleeving a new tracheal catheter to be placed into the exchange guide rod, and inserting the tracheal catheter into the air passage under the support of the exchange guide rod to complete replacement of the tracheal catheter.
The invention also provides the application of the exchange guide rod in replacing the tracheal catheter: when the tracheal catheter to be replaced is taken out and a new tracheal catheter to be placed is not inserted into the airway, the exchange guide rod is temporarily left in the airway.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects as examples: endotracheal tube exchanges guide stick improves based on existing intubate guide core, utilizes the outer hose after the extension can prevent the air flue damage as flexible guide section, and interior excellent core can also provide the support simultaneously and moulding endotracheal tube, and the exchange guide stick after the transformation has pliability and holding power simultaneously, has made things convenient for the operation greatly and has strengthened the commonality. The invention has the advantages of good flexibility, strong universality, convenient operation and easy acquisition.
Drawings
Fig. 1 is a schematic structural view of an exchange guide rod of an endotracheal tube according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an exchange guide rod according to an embodiment of the present invention during stretching.
Fig. 3 to 4 are first schematic limiting diagrams of a limiting structure according to an embodiment of the present invention.
Fig. 5 is a second schematic limiting diagram of the limiting structure according to the embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an exchange guide rod according to an embodiment of the present invention.
Fig. 7 is an exploded view of the stopper portion of fig. 6.
Fig. 8 is a schematic structural view of an endotracheal tube assembly provided in an embodiment of the present invention.
Description of reference numerals:
the exchange guide bar 100;
an inner rod core 110;
the device comprises an outer hose 120, a fixed section 121, a movable section 122, telescopic blocks 110-1 and 122-2, openings 122-1 and 110-2, an annular clamping groove 110-3 and a clamping ring 122-3;
a connection joint 130;
the limiting part 140, the upper joint 141, the lower joint 142, the silica gel fixing ring 143 and the cavity 144;
a protruding head 150;
an endotracheal tube 200.
Detailed Description
The exchange guide rod and the application of the endotracheal tube disclosed by the invention are further described in detail with reference to the attached drawings and specific embodiments. It should be noted that technical features or combinations of technical features described in the following embodiments should not be considered as being isolated, and they may be combined with each other to achieve better technical effects. In the drawings of the embodiments described below, the same reference numerals appearing in the respective drawings denote the same features or components, and may be applied to different embodiments. Thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
It should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes and other dimensions, should be construed as falling within the scope of the invention unless the function and objectives of the invention are affected. The scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that described or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
Examples
Referring to fig. 1, a schematic structural view of an exchange guide rod of an endotracheal tube according to an embodiment of the present invention is shown.
The exchange guide rod 100 of the endotracheal tube comprises an inner rod core 110 and an outer hose 120 sleeved on the periphery of the inner rod core 110, wherein the outer hose 120 comprises a fixed section 121 and a movable section 122. The fixing segment 121 is fixedly mounted on the inner rod core 110.
The movable segment 122 is connected to the fixed segment by a connecting joint 130, and the movable segment 122 is separated from the fixed segment 121 by the connecting joint 130, and then the movable segment 122 of the outer hose is pulled out relative to the inner rod core 110 to be extended. Referring to fig. 2, the pulled-out movable outer hose segment 122 can form a flexible guide segment, and the end of the movable outer hose segment 122 is inserted into the endotracheal tube to be replaced during the tube replacement operation.
Or, the movable section 122 is connected to the inner core through a limiting part, and after the limiting of the limiting part is released by applying an external force, the movable section of the outer hose is pulled out relative to the inner core to be extended, and the pulled-out movable section of the outer hose can form a flexible guide section. In this embodiment, the limiting portion may be one or more elastic bodies disposed on the inner wall of the movable section, the movable section 122 may be limited on the inner rod core by using the deformation performance of the elastic bodies, and when the external pulling force is greater than the friction force applied by the elastic bodies, the limitation of the elastic bodies is released, and the movable section 122 may move relative to the inner rod core. When moving, the operator can be according to actual length needs, can be with the activity section spacing in the optional position of inner rod core through the elastomer.
Preferably, the elastic body is a silica gel block, a silica gel tube or a silica gel ring. By way of example and not limitation, a ring of silicone rings is disposed on the inner wall of the movable section 122 as a limiting structure.
In this embodiment, the inner core is preferably a medical metal strip, such as a stainless steel wire strip, which can provide a supporting force when the endotracheal tube is inserted.
The outer hose is used as a packaging sleeve of the inner rod core when not being prolonged, and is used as a flexible guide section when the hose is replaced after being pulled out and prolonged, and the outer hose is preferably made of medical PVC pipes. The outer hose has an outer diameter of less than 3mm and a wall thickness of preferably between 0.3 and 0.5mm, preferably 0.4 mm.
The outer wall of the outer hose 120 may further be provided with scale marks, so that an operator can know the insertion depth during operation.
In the working process, when the tracheal catheter needs to be replaced, the typical operation steps are as follows:
first, after the movable segment 122 is separated from the fixed segment 121 by operating the connection joint, the outer flexible pipe movable segment 122 is pulled out relative to the inner rod core 110 to be extended, and the pulled-out outer flexible pipe movable segment forms a flexible guide segment.
Then, the end of the outer flexible tube movable section 122 is inserted into the tracheal tube to be replaced (i.e. the tracheal tube which enters the airway), and extends into the middle-lower section of the trachea;
then, withdrawing the tracheal catheter to be replaced, and reserving the exchange guide rod;
and finally, sleeving a new tracheal catheter to be placed into the exchange guide rod, inserting the tracheal catheter into the air passage under the support of the exchange guide rod, and finishing the replacement of the tracheal catheter.
In the working process, preferably, when the endotracheal tube exchange guiding rod 100 is inserted into an endotracheal tube which enters an airway, the insertion depth can be prompted according to the scale marking lines on the outer wall of the outer hose 120, and the exchange guiding rod 100 needs to go deep into the middle and lower segments of the trachea, generally beyond the position of the endotracheal tube. Then, the tracheal catheter is withdrawn, the tracheal catheter exchange guide rod 100 is kept in place, the tracheal catheter (new tracheal catheter) to be placed is sleeved into the tracheal catheter exchange guide rod 100, and the tracheal catheter is inserted into the airway in a cis-form under the guidance and support of the exchange guide rod 100, so that the exchange function between the tracheal catheters is completed.
Among the above-mentioned technical scheme, can prevent the air flue damage as flexible guide section with the outer hose after the extension, the stick core can also provide the support simultaneously and moulding endotracheal tube, and the exchange guide stick after the transformation has pliability and holding power simultaneously, has made things convenient for the operation greatly and has strengthened the commonality.
In this embodiment, the connection joint 130 is preferably a tear structure including a tear strip, the fixed section and the movable section are connected by the tear strip, and the end of the tear strip has a pull tab or a pull head for peeling off the tear strip.
By way of example and not limitation, the tear strip has a wave-shaped male tang that engages the fixed segment wave-shaped female tang and a wave-shaped female tang that engages the movable segment wave-shaped male tang in an initial state, the tear strip enabling a sealed connection of the fixed segment and the movable segment. When the fixed section and the movable section need to be separated, the tear strip is peeled off by taking the easy-to-pull opening or the easy-to-pull head at the end of the tear strip as a starting position, so that the fixed section and the movable section are separated. Of course, those skilled in the art will appreciate that the tear strip configuration described above including male and female ends is exemplary, and tear scores, for example, may also be used to form tear strips, and should not be construed as limiting the easy-tear structure of the present invention.
In this embodiment, the connection joint may also have other structures. Typically, such as a threaded connection, including an internal or external threaded connection, the operator may rotate to separate or assemble the inner core 110 and the outer hose 120. For another example, the connection joint may be one of a snap connection joint and a wedge connection joint, and the movable combination connection of the outer hose 120 and the inner core 110 is realized by snap and wedge fastening.
In this embodiment, the tail end of the inner rod core is provided with a first limiting structure, the front end of the movable section is provided with a second limiting structure, and the first limiting structure is matched with the second limiting structure; when the front end of the movable section is pulled out to the tail end position of the inner rod core relative to the inner rod core, the first limiting structure and the second limiting structure are fixed to prevent the movable section from being separated from the inner rod core.
In a preferred embodiment, the first limiting structure is a telescopic block or an opening, and the second limiting structure is a corresponding opening or a corresponding telescopic block matched with the telescopic block or the opening; when the front end of the movable section is pulled out to the tail end of the inner rod core relative to the inner rod core, the telescopic block stretches out of the inlet opening to be limited due to the existence of the opening, so that the movable section is prevented from being separated from the inner rod core.
Referring to fig. 3, the first limiting structure is illustrated as a telescopic block, and the second limiting structure is a corresponding opening matched with the telescopic block.
Specifically, the rear end of the inner rod core 110 is provided with a telescopic block 110-1, and the front end of the movable section 122 is provided with an opening 122-1. When the front end of the movable section 122 does not reach the position of the telescopic block, the telescopic block is limited in the groove on the inner rod core 110 due to the limitation of the inner wall of the movable section 122; when the front end of the movable section 122 is pulled out to the tail end position of the inner rod core 110 relative to the inner rod core 110, the restriction is released due to the existence of the opening 122-1, and the telescopic block 110-1 restricted in the groove extends out of the opening to be limited, thereby preventing the movable section 122 from separating from the inner rod core 110.
The extension of the telescopic block 110-1 can be realized by the elasticity of the material of the telescopic block, for example, the telescopic block is made of elastic rubber and is in a compressed state under the limitation of the inner wall movable section 122, after reaching the position of the opening 122-1, the limitation of the inner wall is removed, the telescopic block recovers deformation and extends into the opening 122-1 to be locked and limited, and the movable section 122 and the inner rod core 110 are prevented from moving relatively; also can adopt elastic construction such as spring, reed to realize flexible, during the concrete implementation, can install the inslot on inner rod core 110 with flexible piece through elastic construction, elastic construction is in compression state when initial, and when the restriction was relieved, the spring recovered deformation to it realizes locking spacing to drive flexible piece to stretch out into in the opening.
Referring to fig. 4, the first limiting structure is illustrated as an opening, and the second limiting structure is a corresponding telescopic block matched with the opening.
Specifically, the rear end of the inner rod core 110 is provided with an opening 110-2, and the front end of the movable section 122 is provided with a telescopic block 122-2. When the front end of the movable section 122 does not reach the position of the telescopic block, the telescopic block is limited in the groove on the movable section 122 due to the limitation of the outer wall of the inner rod core 110; when the front end of the movable section 122 is pulled out to the tail end position of the inner rod core 110 relative to the inner rod core, the restriction is released due to the existence of the opening, and the telescopic block restricted in the groove extends out of the opening to be limited, thereby preventing the movable section 122 from separating from the inner rod core 110.
As with the structure in fig. 3, the expansion of the expansion block can be realized by the elasticity of the material of the expansion block, or by an elastic structure such as a spring or a reed.
In another preferred embodiment, the first limiting structure comprises an annular clamping groove, and the second limiting structure is a clamping ring matched with the clamping groove; when the front end of the movable section is pulled out to the tail end of the inner rod core relative to the inner rod core, the clamping ring is embedded into the clamping groove to form a clamping structure, and the movable section is prevented from being separated from the inner rod core.
Referring to fig. 5, the locking limit achieved by the snap groove and the snap ring is illustrated.
Specifically, the tail end of the inner rod core 110 is provided with an annular clamping groove 110-3, and the front end of the movable section 122 is provided with a clamping ring 122-3 matched with the clamping groove. When the front end of the movable section 122 is pulled out to the tail end of the inner rod core 110 relative to the inner rod core 110, the snap ring 122-3 can be embedded into the snap groove 110-3, so that a snap structure is formed to lock and limit, and the movable section is prevented from being separated from the inner rod core.
In another embodiment of this embodiment, referring to fig. 6, the position-limiting portion 140 includes an upper joint 141, a lower joint 142 and a silicone fixing ring 143. The upper joint 141 is mounted on the inner rod core 110 adjacent to the fixed section 121, for example, but not limited to, at a position five millimeters from the fixed section 121.
The lower joint 142 is installed at the front end of the movable section 122, and the lower joint 142 is connected to the upper joint 141 through a movable connection portion, and can be connected or disconnected. The movable connection portion may be, for example and without limitation, a threaded connection portion in which an external thread matches an internal thread, or a snap connection portion in which a protrusion matches a groove. In this embodiment, a threaded connection portion is preferably used, and specifically, an external thread section is provided at the lower end of the upper joint 141, and an internal thread section is provided at the upper end of the lower joint 142, and the external thread and the internal thread can be tightly threaded.
Preferably, a cavity 144 is further formed between the lower joint 142 and the inner rod core 110, the cavity can accommodate the silicone fixing ring 143, and the silicone fixing ring 143 is mounted on the lower joint 142 and located in the cavity 144.
Referring to fig. 7, a nested installation manner of sleeving the silicone fixing ring 143 on the inner rod core 110 is shown, and the silicone fixing ring 143 can be fixedly installed in the cavity after entering the cavity 144 — for example, but not by way of limitation, an arc-shaped limiting protrusion is provided on a wall of the cavity 144, and after the silicone fixing ring 143 enters the cavity, the arc-shaped limiting protrusion can limit the silicone fixing ring 143 in the cavity. The silicone retainer ring 143 is retained on the inner rod core 110 by being pressed by the wall of the cavity.
When the upper joint 141 is separated from the lower joint 142, the user moves the lower joint 142 or the movable section 122 downwards, the lower joint and the movable section move along the inner rod core under the action of tension, and the silica gel fixing ring 143 in the lower joint can limit the lower joint at any position of the inner rod core under the action of extrusion.
Referring to fig. 8, in another embodiment of the present invention, an endotracheal tube assembly is provided.
The endotracheal tube assembly includes an endotracheal tube 200 and an endotracheal tube guide core, which is the exchange guide rod 100 of any one of the preceding items.
When the trachea cannula subassembly was intubate for the first time, exchange guide stick 100 under through original state leads the core as the intubate, and moulding endotracheal tube is carried out at trachea cannula in-process, makes the more smooth air flue of inserting of endotracheal tube's shape.
Then, when the tracheal catheter needs to be replaced, firstly, the movable section of the outer hose is pulled out relative to the inner rod core to be extended after the movable section is separated from the fixed section, and the pulled-out movable section of the outer hose forms a flexible guide section.
Then, inserting the end of the movable section of the outer hose into a tracheal catheter to be replaced (namely, the tracheal catheter which enters an air passage) and extending into the middle-lower section of the trachea;
then, withdrawing the tracheal catheter to be replaced, and reserving the exchange guide rod;
and finally, sleeving a new tracheal catheter to be placed into the exchange guide rod, inserting the tracheal catheter into the air passage under the support of the exchange guide rod, and finishing the replacement of the tracheal catheter.
In this embodiment, the endotracheal tube 200 is preferably made of a soft resin and has a spiral wire in the wall thereof, and the exchange guide rod 100 has a length longer than that of the endotracheal tube 200.
Other technical features are referred to in the previous embodiments and are not described herein.
In another embodiment of the present invention, there is also provided a method for replacing an endotracheal tube with an exchangeable guide rod, including the steps of:
after the movable section is separated from the fixed section by operation, the movable section of the outer hose is pulled out relative to the inner rod core to be extended, and the pulled-out movable section of the outer hose forms a flexible guide section;
inserting the end of the movable section of the outer hose into the tracheal catheter to be replaced and extending the movable section of the outer hose into the middle-lower section of the trachea;
withdrawing the tracheal catheter to be replaced and retaining the exchange guide rod;
and sleeving a new tracheal catheter to be placed into the exchange guide rod, and inserting the tracheal catheter into the air passage under the support of the exchange guide rod to complete replacement of the tracheal catheter.
Other technical features are referred to in the previous embodiments and are not described herein.
In another embodiment of the present invention, there is also provided a use of the aforementioned exchange guide rod for replacing an endotracheal tube: when the tracheal catheter to be replaced is taken out and a new tracheal catheter to be placed is not inserted into the airway, the exchange guide rod is temporarily left in the airway.
Other technical features are referred to in the previous embodiments and are not described herein.
It is within the scope of the disclosure that the various components may be selectively and operatively combined in any number. In addition, terms like "comprising," "including," and "having" should be interpreted as inclusive or open-ended, rather than exclusive or closed-ended, by default, unless explicitly defined to the contrary. All technical, scientific, or other terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. Common terms found in dictionaries should not be interpreted too ideally or too realistically in the context of related art documents unless the present disclosure expressly limits them to that. Any changes and modifications of the present invention based on the above disclosure will be within the scope of the appended claims.
Claims (10)
1. An exchange guide rod of an endotracheal tube, characterized in that: the outer hose comprises a fixed section and a movable section; the fixed section is fixedly arranged on the inner rod core;
the movable section is connected with the fixed section through a connecting joint or is connected on the inner rod core through a limiting part, the movable section is separated from the fixed section through the connecting joint or is pulled out relative to the inner rod core to be prolonged after the limiting of the limiting part is removed through applying external force, and the movable section of the outer hose after being pulled out can form a flexible guiding section.
2. The exchange guide bar of claim 1, wherein: the limiting part is one or more elastic bodies arranged on the inner wall of the movable section, and the movable section can be limited at any position of the inner rod core through the elastic bodies;
the elastic body is a silica gel block, a silica gel tube or a silica gel ring.
3. The exchange guide bar of claim 1, wherein: the limiting part comprises an upper joint, a silica gel fixing ring and a lower joint, the upper joint is arranged on the inner rod core and is close to the fixed section, and the lower joint is arranged at the front end of the movable section and is used for being connected with or separated from the upper joint;
form the cavity in order to hold the silica gel retainer plate between lower clutch and the interior excellent core, the silica gel retainer plate is installed on the lower clutch, the arbitrary position of excellent core including the lower clutch is spacing on including the excellent core and can be under the pressure effect to the fixed snare of silica gel.
4. The exchange guide bar of claim 1, wherein: the tail end of the inner rod core is provided with a first limiting structure, the front end of the movable section is provided with a second limiting structure, and the first limiting structure is matched with the second limiting structure;
when the front end of the movable section is pulled out to the tail end position of the inner rod core relative to the inner rod core, the first limiting structure and the second limiting structure are fixed to prevent the movable section from being separated from the inner rod core.
5. The exchange guide bar of claim 1, wherein: the first limiting structure is a telescopic block or an opening, and the second limiting structure is a corresponding opening or a corresponding telescopic block matched with the telescopic block or the opening; when the front end of the movable section is pulled out to the tail end position of the inner rod core relative to the inner rod core, the telescopic block extends out of the opening to be limited due to the existence of the opening, so that the movable section is prevented from being separated from the inner rod core;
or the first limiting structure comprises an annular clamping groove, and the second limiting structure is a clamping ring matched with the clamping groove; when the front end of the movable section is pulled out to the tail end of the inner rod core relative to the inner rod core, the clamping ring is embedded into the clamping groove to form a clamping structure, and the movable section is prevented from being separated from the inner rod core.
6. The exchange guide bar of claim 1, wherein: the connecting joint is an easy-to-tear structure comprising a tear strip, the fixed section and the movable section are connected through the tear strip, and the end of the tear strip is provided with an easy-to-pull opening or an easy-to-pull head so as to peel off the tear strip.
7. The utility model provides an endotracheal tube subassembly, includes endotracheal tube and endotracheal tube guide core, its characterized in that: the endotracheal tube guide core is the exchange guide rod of any one of claims 1 to 6.
8. The endotracheal tube assembly according to claim 7, wherein: the endotracheal tube is soft resin and has spiral steel wire in the wall, exchange guide bar's length is greater than endotracheal tube's length.
9. A method of replacing an endotracheal tube using the exchange guide rod of claim 1, characterized by comprising the steps of:
after the movable section is separated from the fixed section by operation, the movable section of the outer hose is pulled out relative to the inner rod core to be extended, and the pulled-out movable section of the outer hose forms a flexible guide section;
inserting the end of the movable section of the outer hose into the tracheal catheter to be replaced and extending the movable section of the outer hose into the middle-lower section of the trachea; withdrawing the tracheal catheter to be replaced and retaining the exchange guide rod;
and sleeving a new tracheal catheter to be placed into the exchange guide rod, and inserting the tracheal catheter into the air passage under the support of the exchange guide rod to complete replacement of the tracheal catheter.
10. Use of an exchange guide rod according to any one of claims 1 to 6 in the replacement of an endotracheal tube, characterized in that: when the tracheal catheter to be replaced is taken out and a new tracheal catheter to be placed is not inserted into the airway, the exchange guide rod is temporarily left in the airway.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103291.6A CN111001069B (en) | 2019-11-13 | 2019-11-13 | Exchange guide rod of tracheal catheter and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103291.6A CN111001069B (en) | 2019-11-13 | 2019-11-13 | Exchange guide rod of tracheal catheter and application |
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| CN111001069A true CN111001069A (en) | 2020-04-14 |
| CN111001069B CN111001069B (en) | 2024-03-01 |
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| CN201911103291.6A Active CN111001069B (en) | 2019-11-13 | 2019-11-13 | Exchange guide rod of tracheal catheter and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022171181A1 (en) * | 2021-02-11 | 2022-08-18 | 邹最 | Exchange guide kit for tracheal catheter and application |
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| CN111001069B (en) | 2024-03-01 |
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Effective date of registration: 20240411 Address after: Building 3, No. 2111 Beiyan Road, Chongming District, Shanghai, 202177 Patentee after: Shanghai Zhuokangxin Biotechnology Co.,Ltd. Country or region after: China Address before: 415 Department of Anesthesiology, Changzheng Hospital, Fengyang Road, Shanghai, Huangpu District 200003, China Patentee before: Zou Zui Country or region before: China |