CN216319353U - But pernasal endotracheal tube of two-way regulation crookedness - Google Patents

Abstract

The utility model belongs to the technical field of medical treatment of clinical tracheal tubes, and solves the problems that when the conventional device is used for intubation through the nose, the tube cannot be bent, an intubation head is difficult to align with the glottis, the tube is easy to enter the esophagus by mistake, the intubation fails, and the effect is not ideal even if an auxiliary instrument is applied. The utility model provides a transnasal tracheal catheter capable of bidirectionally adjusting curvature, which comprises a distal cannula head, a cannula body and a proximal linking tube which are sequentially connected, wherein a cuff is sleeved on the cannula body and communicated with an inflatable catheter, two wire cavities which are symmetrical relative to the central axis of the catheter are arranged in the wall of the tracheal catheter, the blind end of each wire cavity is close to the cannula head, the open end of each wire cavity is close to the linking tube, a wire is arranged in each wire cavity, the blind end of each wire cavity is fixedly connected with the distal end of the wire, and the proximal end of the wire penetrates out of the open end of the wire cavity and is provided with a section of rope outside the open end. The utility model has simple structure, and can bidirectionally adjust the bending degree of the cannula head to align the cannula head with the glottis and smoothly place the cannula.

Description

But pernasal endotracheal tube of two-way regulation crookedness

Technical Field

The utility model belongs to the technical field of medical treatment of clinical tracheal catheters, and particularly relates to a transnasal tracheal catheter capable of bidirectionally adjusting curvature.

Background

The prior tracheal catheter mainly comprises a cannula head, a cannula body, a connecting tube and the like. During transnasal intubation, blind intubation can be performed, intubation can be assisted by a laryngoscope, and intubation can be guided by a fiber bronchoscope.

The problems existing when the conventional tracheal catheter is inserted into the tube through the nose are as follows: when the intubation head of the tracheal catheter reaches the laryngopharynx through the nasal cavity and is anaerobic, the intubation head is difficult to align with the glottis due to the fact that the catheter cannot be bent, the inherent structure of the laryngopharynx cavity of a human body, or the head cannot be bent backwards due to limited cervical vertebra movement caused by injury, the trachea catheter is too high and the like, the intubation head is difficult to rotate and twist to repeatedly adjust the tracheal catheter, the surrounding tissue mucosa is easy to be damaged, meanwhile, the operation time is prolonged, the intubation head often mistakenly enters the esophagus, and intubation failure is caused; the intubation is often completed by the aid of intubation forceps when a laryngoscope is used for assisting intubation, the use of instruments is increased by the guidance of a bronchofiberscope, the consumed time is long, the bronchofiberscope is expensive, and the requirements on operation technology are high.

Therefore, when the existing device is used for inserting the tube through the nose, the tube cannot be bent, the tube head is difficult to aim at the glottis, the mucosa of the surrounding tissue is easy to damage, the tube is easy to miss into the esophagus to cause tube inserting failure, the injury of a patient is caused, even serious anoxia and death occur, and the risk of anesthesia is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problems, namely the utility model provides the transnasal tracheal catheter capable of bidirectionally adjusting the curvature, the transnasal tracheal catheter capable of bidirectionally adjusting the curvature has a simple structure, and when the intubation head reaches the state of being hydrophobic, no matter blind intubation or visual intubation, the curvature of the intubation head can be adjusted in a bidirectional way, so that the intubation head is aligned to the glottis, and then the intubation can be smoothly carried out.

In order to solve the technical problem, the utility model provides a transnasal tracheal catheter capable of bidirectionally adjusting the bending degree, which comprises a far-end cannula head, a cannula body and a near-end linking tube which are sequentially connected, wherein a cuff is sleeved on the cannula body and communicated with an inflatable catheter, two wire cavities which are symmetrical relative to the central axis of the catheter are formed in the wall of the tracheal catheter, the blind end of each wire cavity is close to the cannula head, the open end of each wire cavity is close to the linking tube, a wire is arranged in each wire cavity, the blind end of each wire cavity is fixedly connected with the far end of the wire, and the near end of the wire penetrates out of the open end of each wire cavity and is provided with a section of rope outside the open end.

The adjusting device comprises a supporting wall and an adjusting ring, the supporting wall is fixedly sleeved on the pipe wall, the adjusting ring is sleeved on the outer side of the supporting wall, two rotating shafts which are arranged in the same straight line are fixedly connected to the adjusting ring, the two rotating shafts are rotatably connected to the supporting wall, and the rotating shafts are perpendicular to the central axis of the guide pipe; the near ends of the two wires are connected to the two ends of the adjusting ring, and the two connection points of the wires and the adjusting ring are symmetrical relative to the rotating shaft.

Furthermore, the outer ends of the two rotating shafts are fixedly connected with adjusting rods, each adjusting rod comprises two straight line sections connected with the corresponding rotating shaft, and the two straight line sections are connected through arc-shaped sections.

Furthermore, the adjusting device also comprises an adjusting box, the supporting wall and the adjusting ring are arranged in the adjusting box, and the arc-shaped section of the adjusting ring is arranged on the outer side of the adjusting box.

Furthermore, the far end of the cannula head is an oblique plane, and the intersection points of the extension lines of the two wire cavities and the oblique plane are symmetrical relative to the central axis of the catheter.

Furthermore, a spiral steel wire coil is embedded in the tube wall, and the distal end of the lead penetrates through the blind end of the lead cavity and is correspondingly connected with the distal end of the steel wire coil.

Further, the guidewire lumen is coated with a lubricant that is chemically inert to both the guidewire and the wall of the tube.

Furthermore, the tube wall of the upper end of the cuff is provided with an X-ray development mark line, and the tube wall is provided with a scale mark.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the connection among the adjusting ring, the lead and the blind end of the lead cavity in the adjusting device, the bending degree of the tracheal catheter can be adjusted during intubation, so that the intubation head is aligned to the glottis, the intubation is smoothly performed, the time for anesthesia intubation is reduced, and the success rate is improved.

2. The utility model is provided with two symmetrical guide wire cavities and guide wires, can bidirectionally adjust the curvature of the tracheal catheter, and can avoid the injury of the glottis and other parts caused by excessive adjustment at one time.

3. According to the utility model, through the adjusting device, the operation of adjusting the curvature of the catheter in a one-handed and two-way manner can be realized, and the operation is more convenient.

4. The utility model has simple structure, easily obtained raw materials and low manufacturing cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of an embodiment of the tuning wire configuration of the present invention;

FIG. 3 is a schematic view of the internal structure of the adjusting device according to the embodiment of the present invention;

FIG. 4 is a schematic view of a horizontal section of a cannula body according to an embodiment of the utility model;

FIG. 5 is a schematic view of the embodiment of the utility model when the head of the cannula reaches the anaerobic level without pulling the adjusting rod when the head of the cannula is inserted into the nasal cavity;

FIG. 6 is a schematic view showing the adjusting rod being moved when the head of the tube reaches the level of the epiglottis when the tube is inserted through the nasal cavity according to the embodiment of the present invention.

In the figure: 1-cannula body; 1.1-tube wall; 1.11-inflation cavity; 1.12-guidewire lumen; 2-cannula head; 3-a linking tube; 4-cuff; 5-an inflation conduit; 6-testing the small capsule; 7-a regulating device; 7.1-adjustment box; 7.2-supporting walls; 7.3-adjusting ring; 7.4-adjusting the rod; 7.5-rotating shaft; 8-a wire; 9-steel wire coil; 10-X ray development of the marker line; 11-a miniature camera; 12-port; 13-a bluetooth transmitter; 14-laryngopharynx; 15-epiglottis; 16-esophagus; 17-glottis; 18-trachea.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below in detail and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for understanding and reading the present disclosure, and are not used for limiting the limit of the present disclosure, which is not a technical meaning, and any structural modifications, ratio changes, or size adjustments may still fall within the scope of the present disclosure without affecting the function and the achievable effect of the present disclosure.

The embodiment provided by the utility model comprises the following steps: including the intubate head 2 of the distal end that connects gradually, intubate body 1 and the linking pipe 3 of near-end, the cover is equipped with cover bag 4 on the intubate body 1, cover bag 4 intercommunication gas tube 5, set up two wire chamber 1.12 relative pipe center axis symmetry in the pipe wall 1.1 of endotracheal tube, the cecum in wire chamber 1.12 is close to intubate head 2, the open end is close to linking pipe 3, be provided with wire 8 in the wire chamber 1.12, the cecum fixedly connected with wire 8's of wire chamber 1.12 distal end, wire 8's near-end is worn out wire chamber 1.12 open end and is left one section rope body outside the open end. (the proximal and distal ends of all components are proximal to the machine end and distal from the machine relative to the machine to which the connector tube 3 is attached.)

Referring to fig. 1 and 4, an inflation cavity 1.11 is axially formed on the tube wall 1.1, the cuff 4 is communicated with an inflation catheter 5 through the inflation cavity 1.11, and a test small bag 6 is connected to the proximal end of the inflation catheter 5.

The far end of the cannula head 2 is an oblique plane, the intersection point of the extension lines of the two guide wire cavities 1.12 and the oblique plane is symmetrical relative to the central axis of the catheter, and the oblique plane is a U-shaped plane with a triangular tip in the embodiment.

The device is characterized by further comprising an adjusting device 7 arranged below the connecting pipe 3, wherein the adjusting device 7 comprises a supporting wall 7.2 and an adjusting ring 7.3, the supporting wall 7.2 is fixedly sleeved on the pipe wall 1.1, the adjusting ring 7.3 is sleeved on the outer side of the supporting wall 7.2, two rotating shafts 7.5 which are arranged in the same straight line are fixedly connected to the adjusting ring 7.2, the two rotating shafts 7.5 are rotatably connected to the supporting wall 7.2, and the rotating shafts 7.5 are vertical to the central axis of the catheter and comprise different surfaces which are vertical; the near ends of the two wires 8 are connected to the two ends of the adjusting ring 7.3, and the two connection points of the wires 8 and the adjusting ring 7.3 are symmetrical relative to the rotating shaft 7.5. The outer ends of the two rotating shafts 7.5 are fixedly connected with adjusting rods 7.4, the adjusting rods 7.4 comprise two straight line sections connected with the rotating shafts 7.5, and the two straight line sections are connected through arc sections.

In this embodiment, the annular supporting wall 7.2 is fixedly sleeved on the pipe wall 1.1, the adjusting ring 7.3 is sleeved on the outer side of the supporting wall 7.2, and the adjusting ring 7.3 is of a runway-shaped annular structure; the two rotating shafts 7.5 are respectively and fixedly connected with the middle points of the two straight-line segments of the adjusting ring 7.3, the near ends of the two leads 8 are respectively and correspondingly connected with the middle points of the two arc-shaped segments of the adjusting ring 7.3, and the adjusting ring 7.3 and the supporting wall 7.2 are symmetrical about the rotating shafts 7.5. The adjusting device 7 further comprises an adjusting box 7.1, the supporting wall 7.2 and the adjusting ring 7.3 are arranged in the adjusting box 7.1, and the arc-shaped section of the adjusting ring 7.4 is arranged on the outer side of the adjusting box 7.1.

In order to make the structure more stable, the adjusting ring 7.3 is vertically fixed with the rotating shaft 7.5, the adjusting ring 7.3 and the adjusting rod 7.4 are in the same horizontal plane, and the connection point of the arc-shaped section of the adjusting ring 7.3 and the lead 8 is located right above the lead cavity 1.12. The proximal ends of the guide wires 8 respectively penetrate out of the guide wire cavities 1.12 and are fixedly connected with the corresponding arc-shaped sections of the adjusting rings 7.3. A spiral steel wire coil 9 is also embedded in the tube wall 1.1 along the axial direction, and the distal end of the lead 8 penetrates through the blind end of the lead cavity 1.12 and is correspondingly connected with the distal end of the steel wire coil 9. The length of the steel wire coil 9 embedded in the pipe wall 1.1 can be adjusted according to clinical requirements, and a circle of steel wire coil 9 can be embedded, so that the lead 8 is pulled by the steel wire coil 9, and the lead 8 is prevented from being pulled off; can also be fully paved, and can play a role in strengthening the tracheal catheter in addition to meeting the functions.

Referring to fig. 1, 2, 3 and 4, in this embodiment, the guidewire lumen 1.12 and the inflation lumen 1.11 each have half the diameter of the tubular wall 1.1. The lead 8 is made of a tough material which is not easy to break, and a lubricant which has no chemical action on the lead 8 and the pipe wall 1.1 is coated in the lead cavity 1.12, so that the lead 8 can slide in the lead cavity 1.12 conveniently.

When the trachea cannula is inserted, the adjusting rod 7.4 is shifted to the far end, the adjusting ring 7.3 correspondingly rotates under the drive of the rotating shaft 7.5, the conducting wire 8 in the conducting wire cavity 1.12 on one side is stretched, and the other conducting wire 8 on the opposite side is retracted, so that the far end of the tracheal catheter on the stretched side is stressed, and the tracheal catheter is bent towards the stretched side of the conducting wire 8. The bending degree of the tracheal catheter gradually increases along with the increase of the poking angle of the adjusting rod 7.4. At the moment, the acting force on the adjusting rod 7.4 is gradually reduced, and the curvature of the tracheal catheter is gradually reduced due to the self memory function;

at this time, the adjusting rod 7.4 is pulled to the near end, the adjusting ring 7.3 correspondingly rotates, the adjusting ring pulls the conducting wire 8 on the other side, the two conducting wires move in the opposite directions, and the far end of the corresponding tracheal catheter is stressed to further recover the curvature of the tracheal catheter, even the tracheal catheter is bent in the opposite direction. In specific operation, according to actual conditions, the bending degree of the tracheal catheter is controlled through the operation of the adjusting rod 7.4, so that the intubation head 2 is aligned with the glottis 17 more accurately, and then the intubation is smoothly performed.

Preferably, the tube wall 1.1 at the upper end of the cuff 4 is provided with X-ray development mark lines 10, and the tube wall 1.1 is provided with scale marks. Be provided with the miniature camera 11 that can give out light in the pipe wall of intubate head 2 department, set up a port 12 on the regulating box 7.1, the signal line setting that port 12 and miniature camera 11 link to each other is in pipe wall 1.1, can insert electrified bluetooth transmitter 13 in the port 12 for accept the signal of camera, then the transmission is for the screen receiver. With the arrangement, when the cannula is inserted, the adjusting rod 7.4 can be operated according to the real-time position of the cannula head 2 through the observation screen, so that the cannula can be smoothly placed.

The method comprises the following specific operation steps:

1. when the tracheal catheter is inserted into the nasal cavity, when the head of the tracheal catheter reaches the level of the epiglottis 15 of the laryngopharynx 14, the adjusting rod 7.4 is not operated, the position of the intubation head 2 is shown in figure 5, and the intubation head 2 cannot be bent, so that the tracheal catheter is continuously pushed to be easily mistakenly inserted into the esophagus 16;

2. at the moment, a plane formed by the central axes of the two wire cavities 1.12 is parallel to the sagittal plane of a human body, then the thumb is used for poking the adjusting rod 7.4 to the far end of the endotracheal tube 1, and the intubation head 2 is bent towards the glottis 17 direction due to a specific space formed by an anatomical structure, the poking angle of the adjusting rod 7.4 is controlled, so that the bending degree of the intubation head 2 is kept as shown in figure 6 (the sound of breathing airflow can be heard during blind intubation, the laryngoscope can assist in intubation and the endotracheal tube with the camera can be directly observed), and the endotracheal tube can be aligned to the glottis 17;

3. continuing to push the tracheal tube while fine-tuning the adjustment rod 7.4 to enable the intubation head 2 to be substantially aligned with the glottis 17;

4. when cannula head 2 passes glottis 17, the force on adjustment lever 7.4 can be released, continuing to push the tracheal tube into trachea 18 to the target depth.

It should be noted that:

1. the utility model can be designed for various types and models of transnasal tracheal catheters;

2. the blind intubation and laryngoscope auxiliary intubation can carry out the operations;

3. during operation, the curvature of the cannula head 2 is matched with the advancing and retreating of the catheter, so that the cannula head 2 is prevented from being inserted into epiglottis valleculae, pear-shaped fossa and retropharyngeal lacunae;

4. the tracheal catheter adopted by the utility model is longer than the common nasal tracheal catheter, so that the surgical operation is more convenient;

5. the utility model may also be used in connection with the operation of an oral endotracheal tube.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (8)

1. The utility model provides a but pernasal endotracheal tube of two-way regulation crookedness, includes the intubate head (2), intubate body (1) and the linking pipe (3) of near-end of the distal end that connect gradually, and the cover is equipped with cuff (4) on intubate body (1), and cuff (4) intercommunication is inflated catheter (5), its characterized in that: the tracheal catheter is characterized in that two wire cavities (1.12) which are symmetrical relative to the central axis of the catheter are arranged in the wall (1.1) of the tracheal catheter, the blind end of each wire cavity (1.12) is close to the cannula head (2), the open end of each wire cavity is close to the connecting tube (3), a wire (8) is arranged in each wire cavity (1.12), the blind end of each wire cavity (1.12) is fixedly connected with the far end of the wire (8), and the near end of the wire (8) penetrates out of the open end of each wire cavity (1.12) and a section of rope is reserved outside the open end.

2. A transnasal endotracheal tube of bi-directionally adjustable curvature as claimed in claim 1, characterized in that: the device is characterized by further comprising an adjusting device (7) arranged below the connecting pipe (3), wherein the adjusting device (7) comprises a supporting wall (7.2) and an adjusting ring (7.3), the supporting wall (7.2) is fixedly sleeved on the pipe wall (1.1), the adjusting ring (7.3) is sleeved on the outer side of the supporting wall (7.2), two rotating shafts (7.5) which are arranged in the same straight line are fixedly connected to the adjusting ring (7.2), the two rotating shafts (7.5) are rotatably connected to the supporting wall (7.2), and the rotating shafts (7.5) are perpendicular to the central axis of the guide pipe; the near ends of the two wires (8) are connected with the two ends of the adjusting ring (7.3), and the two connection points of the wires (8) and the adjusting ring (7.3) are symmetrical relative to the rotating shaft (7.5).

3. A transnasal endotracheal tube of bi-directionally adjustable curvature as claimed in claim 2, characterized in that: the outer ends of the two rotating shafts (7.5) are fixedly connected with adjusting rods (7.4), the adjusting rods (7.4) comprise two straight-line sections connected with the rotating shafts (7.5), and the two straight-line sections are connected through arc-shaped sections.

4. A transnasal endotracheal tube of bi-directionally adjustable curvature as claimed in claim 3, characterized in that: the adjusting device (7) further comprises an adjusting box (7.1), the supporting wall (7.2) and the adjusting ring (7.3) are arranged in the adjusting box (7.1), and the arc-shaped section of the adjusting rod (7.4) is arranged on the outer side of the adjusting box (7.1).

5. A transnasal endotracheal tube of bi-directionally adjustable bending according to any one of claims 1 to 4, characterized in that: the far end of cannula head (2) is the scarf, and the relative pipe center axis symmetry of the nodical of extension line and the scarf of two wire chamber (1.12).

6. A transnasal endotracheal tube of bi-directionally adjustable curvature as claimed in claim 5, characterized in that: a spiral steel wire coil (9) is also embedded in the tube wall (1.1), and the far end of the lead (8) penetrates through the blind end of the lead cavity (1.12) and is connected with the far end of the steel wire coil (9).

7. A transnasal endotracheal tube of bi-directionally adjustable curvature as claimed in claim 1, characterized in that: the guide wire cavity (1.12) is coated with a lubricant which has no chemical action on the guide wire (8) and the tube wall (1.1).

8. A transnasal endotracheal tube of bi-directionally adjustable curvature as claimed in claim 1, characterized in that: an X-ray developing mark line (10) is arranged on the tube wall (1.1) at the upper end of the cuff (4), and scale marks are arranged on the tube wall (1.1).

Images