Auxiliary guiding device for hard trachea endoscopic intubation

Abstract

The utility model relates to an auxiliary guiding device for hard trachea endoscopic intubation, and belongs to the technical field of medical instruments. The problems that the requirement for opening the mouth of a patient is limited by manual assistance, the patient and a doctor are prone to being injured, and the problems that the requirement for the opening degree is large, the stimulation intensity is large and the angle is not suitable due to laryngoscope assistance are solved. Comprising a handle and a guider body, one end of the guider body is connected with the handle, and the other end of the guider body is used for extending into the throat; the guider body comprises a connecting rod, a guiding part and a lifting part, one end of the connecting rod is connected with the handle, and the other end of the connecting rod is connected with the lifting part through the arc-shaped guiding part; an endoscope guide surface is arranged on one side, far away from the handle, of the guide part; the lifting part is of a sheet-shaped structure. The utility model is used for assisting the intubation of the hard trachea endoscope.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical apparatus and instruments, especially to a hard tracheal endoscope intubation auxiliary guide device. BACKGROUND

[0002] Tracheal intubation is a method of placing a catheter through the oral cavity or nasal cavity into the trachea, which provides the best conditions for airway patency, ventilation and oxygen supply, respiratory tract suction, etc., and is an important measure for rescuing patients with respiratory dysfunction, and is widely used in pre-hospital or in-hospital emergency, general anesthesia, ICU ventilator therapy and other fields. The tracheal intubation process can be divided into laryngoscope intubation and endoscope intubation according to the intubation equipment used. The laryngoscope intubation is to insert the laryngoscope blade into the patient's mouth, pull the laryngoscope, identify the tracheal opening, and then insert the tracheal catheter into the trachea. Endoscope intubation, also known as tube core intubation, is to cover the tracheal catheter outside the intubation tube core, insert the intubation tube core and the catheter into the patient's mouth, and when the red spot or light band is seen on the front of the neck, the tracheal opening is entered (the endoscope can see the tracheal opening), and the tracheal catheter is sent out of the intubation tube core. This technique can be completed by a single person with one hand.

[0003] Compared with laryngoscope intubation technology, endoscope intubation technology has high one-time intubation success rate, small mouth opening requirement, small neck movement requirement, small intubation stimulation, and more stable hemodynamics. When using an endoscope for tracheal intubation, the epiglottis does not need to be lifted with the help of a laryngoscope, which can greatly reduce the stimulation to the root of the tongue and the surrounding tissues of the epiglottis, thereby reducing the hemodynamic fluctuations, and also shortening the tracheal intubation operation time, which also reduces the cardiovascular stress response.

[0004] However, under the anesthesia state, the patient's muscles are relaxed, and the pharyngeal space is closed. When using a hard tracheal endoscope for intubation, the pharyngeal space must be opened to find the epiglottis and glottis. The current methods for assisting hard tracheal endoscope intubation are usually manual assistance and laryngoscope assistance. Manual assistance requires the operator to hold the patient's front teeth or tongue root with the left hand and pull it up, which opens the pharyngeal space by moving the mandible forward. This method can basically meet the clinical needs, but it is not effective for patients with a mouth opening less than 2 cm, patients with limited mandibular movement, and severely obese patients. In addition, during the manual assistance process, the patient's front teeth may be damaged, and the front teeth often damage the operator's fingers. Although using a laryngoscope for intubation can effectively open the pharyngeal space, the laryngoscope requires a large mouth opening, has strong stimulation, and the angle of the laryngoscope is not suitable for hard tracheal endoscope intubation. Using a laryngoscope to assist hard tracheal endoscope intubation greatly reduces the advantages of hard tracheal endoscope intubation. At present, there is no special auxiliary guide device for hard tracheal endoscope intubation.

[0005] Therefore, there is an urgent need for a low-cost, high-quality, easy-to-operate, and small-damage hard tracheal endoscope intubation auxiliary guide device in clinical work. Utility Model Content

[0006] To address the limitations of manual techniques in requiring patients to open their mouths and the potential for injury to both patients and physicians, as well as the issues of excessive mouth opening, high stimulation intensity, and unsuitable angles associated with laryngoscopy-assisted intubation, this invention aims to provide a guide device for rigid endoscopic intubation. During endoscopic intubation, this guide device reduces intubation stimulation and hemodynamic fluctuations, while also lowering the requirements for mouth opening and neck mobility, significantly improving the success rate for difficult intubation patients. Furthermore, when using this guide device for rigid endoscopic intubation, the distance between the operator and patient is greater compared to manual and laryngoscopy-assisted methods, reducing the risk of disease transmission, protecting the operator's health, making endoscopic intubation more convenient, and advancing medical procedures towards minimally invasive, intelligent, and precise techniques.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A rigid endoscopic intubation aid guide includes a handle 1 and a guide body 2, one end of the guide body 2 is connected to the handle 1, and the other end of the guide body 2 is used to insert into the pharynx.

[0009] The guide body 2 includes a connecting rod 21, a guide part 22, and a lifting part 23. One end of the connecting rod 21 is connected to the handle 1, and the other end of the connecting rod 21 is connected to the lifting part 23 through the arc-shaped guide part 22. An endoscope guide surface 221 is provided on the side of the guide part 22 away from the handle 1. The lifting part 23 has a sheet-like structure.

[0010] Furthermore, the connecting rod 21 includes a first rod body 211, a second rod body 212, and a third rod body 213; the rear end of the first rod body 211 is connected to the handle 1, the front end of the first rod body 211 is connected to one end of the second rod body 212, and the other end of the second rod body 212 is connected to the rear end of the third rod body 213; the front end of the third rod body 213 is connected to the guide part 22; the first rod body 211 and the third rod body 213 are parallel.

[0011] Furthermore, the end of the guide section 22 away from the third rod 213 faces downward.

[0012] Furthermore, the angle between the plane containing the lifting part 23 and the axis of the third rod 213 ranges from 80° to 100°.

[0013] Furthermore, the total length of the guide portion 22 and the lifting portion 23 ranges from 3 to 5 cm.

[0014] Furthermore, the width of the guide portion 22 ranges from 1 to 1.5 cm.

[0015] Further, the thickness of the guide part 22 ranges from 0.15 to 0.3 cm.

[0016] Further, the inner mirror guide surface 221 is provided with a guide groove 222.

[0017] Further, one side of the handle 1 is provided with four first grooves 11 arranged in sequence from front to back; the orientation of the one side of the handle 1 is the same as the orientation of the end of the pulling part 23 away from the guide part 22.

[0018] Further, the other side of the handle 1 is provided with a second groove 12 for palm adhesion.

[0019] The utility model discloses a laryngeal mirror guide device, which belongs to the field of medical equipment.

[0020] (1) the thickness of the guide part of the utility model is smaller than the thickness of the laryngeal mirror, can be inserted into the laryngeal part under the condition that the patient's opening degree is smaller, and the operation of pulling the prolapsed tongue root is carried out, and then it is more convenient to guide the rigid bronchoscope into the trachea, and the secondary injury of the patient is reduced.

[0021] (2) one side of the handle of the utility model is provided with four first grooves arranged in sequence from front to back, and the other side of the handle is provided with a second groove, the first groove is used for finger adhesion, and the second groove is used for palm adhesion.

[0022] (3) the guide part of the utility model is provided with a guide groove, the guide groove is used for limiting the left and right movement of the rigid bronchoscope, the design of the guide groove can cooperate with the rigid bronchoscope to enter the trachea in one step to a certain extent, the success rate is improved, and the secondary injury of the patient is reduced.

[0023] (4) when the utility model cooperates with the rigid bronchoscope intubation, it can be carried out at a position relatively far away from the patient's oral cavity, and then the possibility of disease transmission is reduced, and the life and health of the operator are protected.

[0024] (5) the guide part and the pulling part of the utility model are in sheet structure, the contact area with the patient's tongue root part is improved, the tolerance of the patient is improved, and the tracheal intubation process is more stable.

[0025] (6) the utility model has the advantages of simple structure, convenient use, single-person operation, relatively low skill level requirement for the operator, easy to start, and easy operation for beginners. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure schematic view of the auxiliary guide device of the rigid bronchoscope intubation tube of the utility model;

[0027] Figure 2 It is the front side view of the auxiliary guide device of the rigid bronchoscope intubation tube of the utility model;

[0028] Figure 3 It is the upper side view of the auxiliary guide device of the rigid bronchoscope intubation tube of the utility model;

[0029] Figure 4 It is the right side view of the auxiliary guide device of the rigid bronchoscope intubation tube of the utility model;

[0030] Figure 5 It is the handle structure view of the auxiliary guide device of the rigid bronchoscope intubation tube of the utility model;

[0031] Figure 6 It is the guide device body structure view of the auxiliary guide device of the rigid bronchoscope intubation tube of the utility model;

[0032] Figure 7 It is the guide groove structure view of the auxiliary guide device of the rigid bronchoscope intubation tube of the utility model;

[0033] Figure 8 It is the actual operation view of the auxiliary guide device of the rigid bronchoscope intubation tube of the utility model.

[0034] In the drawing: 1, handle;11, first recess;12, second recess;2, guide device body;21, connecting rod;211, first rod body;212, second rod body;213, third rod body;22, guide part;221, endoscope guide surface;222, guide groove;23, pull part. DETAILED DESCRIPTION

[0035] The utility model will be further described below in combination with the drawing and specific embodiment, but not as the limitation of the utility model.

[0036] Please refer to Figures 1 to 8As shown, an auxiliary guide device for rigid bronchoscope intubation is shown, which comprises: a handle 1 and a guide body 2, one end of the guide body 2 is connected with the handle 1, and the other end of the guide body 2 is used to extend into the throat; the guide body 2 comprises a connecting rod 21, a guide part 22 and a pulling part 23, one end of the connecting rod 21 is connected with the handle 1, and the other end of the connecting rod 21 is connected with the pulling part 23 through the arc-shaped guide part 22; the side of the guide part 22 away from the handle 1 is provided with an endoscope guide surface 221, which is used to guide the rigid bronchoscope; the pulling part 23 is a sheet structure, and one side of the pulling part 23 is attached to the root of the tongue.

[0037] Further, in a preferred embodiment, the guide part 22 is an arc-shaped sheet structure, and the side of the guide part 22 close to the handle 1 is smoothly connected with the side of the pulling part 23 close to the handle 1. In operation, the side of the guide part 22 close to the handle 1 and the side of the pulling part 23 close to the handle 1 are attached to the root of the tongue.

[0038] Further, in a preferred embodiment, the connecting rod 21 comprises a first rod body 211, a second rod body 212 and a third rod body 213; the rear end of the first rod body 211 is connected with the handle 1, the front end of the first rod body 211 is connected with one end of the second rod body 212, the other end of the second rod body 212 is connected with the rear end of the third rod body 213; the front end of the third rod body 213 is connected with the guide part 22; the first rod body 211 is parallel to the third rod body 213. In operation, the hand holding the handle 1 of the operator is located at the side of the third rod body 213, and when the other hand inserts the rigid bronchoscope into the oral cavity, the two hands can be prevented from interfering with each other.

[0039] Further, in a preferred embodiment, the front end of the first rod body 211 is roundly connected with one end of the second rod body 212, and the other end of the second rod body 212 is roundly connected with the rear end of the third rod body 213. The round connection can make the transition between the two rod members more smooth, avoiding sharp corners, thereby improving the continuity and aesthetics of the overall structure.

[0040] Further, in a preferred embodiment, the connecting rod 21 is in a z-shaped form, which can stagger the left and right hand operations, and facilitate the further operation of the rigid bronchoscope intubation.

[0041] Further, in a preferred embodiment, the end of the guide part 22 away from the third rod body 213 is downward.

[0042] Further, in a preferred embodiment, the other end of the second rod body 212 is inclined to the left. In operation, the handle 1 is located at the right side of the oral cavity of the patient, which is suitable for the right hand to hold the handle 1 for operation.

[0043] Further, in a preferred embodiment, the other end of the second rod 212 is inclined to the right. In operation, the handle 1 is located on the left side of the patient's oral cavity, which is suitable for the left hand to hold the handle 1 for operation.

[0044] Further, in a preferred embodiment, the plane where the pulling part 23 is located is tangent to the guide part 22, and the tangent point is away from the one end of the third rod 213. The function of the pulling part 23 is to increase the contact area of the other end of the guide body 2 with the tongue root, so that it is easier to lift the prolapsed tongue root when pulling the guide body 2. The tangency of the guide part 22 and the pulling part 23 makes the contact with the tongue root more smooth.

[0045] Further, in a preferred embodiment, the guide body 2 is made of metal material, and further made of stainless steel; the surface of the stainless steel is provided with a chromium plating layer. Since the endoscope guide surface 221 is in contact with the hard bronchoscope and generates friction, the chromium plating makes the endoscope guide surface 221 more wear-resistant.

[0046] Further, in a preferred embodiment, the angle between the plane where the pulling part 23 is located and the third rod 213 ranges from 80° to 100°. This angle makes the guide part 22 and the pulling part 23 more suitable for fitting the tongue root. Since the laryngoscope is designed to be relatively smooth for the convenience of direct visual observation by the human eye, it is suitable for single use, but not suitable for assisting intubation of the endoscope.

[0047] Further, in a preferred embodiment, the total length of the guide part 22 and the pulling part 23 ranges from 3-5 cm. Since the length of the tongue root of patients of different ages is different, the corresponding size can be selected according to the age of the patient before operation.

[0048] Further, in a preferred embodiment, the width of the guide part 22 ranges from 1-1.5 cm. The corresponding size can be selected according to the age of the patient before operation.

[0049] Further, in a preferred embodiment, the thickness of the guide part 22 ranges from 0.15-0.3 cm. The stainless steel with a thickness greater than 0.15 cm can ensure the rigidity requirement; less than 0.3 cm is convenient for the operation of the guide part 22 in the oral cavity. Compared with the laryngoscope which needs to be installed with a camera part, the thickness of the laryngoscope is increased, so the laryngoscope is not suitable for assisting intubation of the hard bronchoscope.

[0050] Further, in a preferred embodiment, the length of the guide body 2 is 12-18 cm. The corresponding size can be selected according to the age of the patient before operation.

[0051] Further, in a preferred embodiment, a guide groove 222 is formed on the inner mirror guide surface 221. The guide groove 222 is used to limit the left and right movement of the rigid bronchoscope, and the design of the guide groove 222 can cooperate with the rigid bronchoscope to a certain extent to enter the trachea in one step, thereby improving the success rate of intubation.

[0052] Further, in a preferred embodiment, four first grooves 11 are arranged in sequence from front to back on one side of the handle 1; the orientation of the one side of the handle 1 is the same as the orientation of the end of the pulling part 23 away from the guide part 22. During operation, the little finger, middle finger and index finger of the operator are respectively placed in a first groove 11, which is more in line with the ergonomic design.

[0053] Further, in a preferred embodiment, a second groove 12 for palm fitting is arranged on the other side of the handle 1. During operation, the second groove 12 is used for the palm fitting of the operator, which is more in line with the ergonomic design.

[0054] Further, in a preferred embodiment, a third groove is arranged at the front end of the handle 1, and one end of the guide device body 2 is installed in the third groove.

[0055] Working principle:

[0056] The operator holds the handle 1, and stretches the front end of the guide device body 2 into the oral cavity of the patient until the guide part 22 close to the side of the handle 1 fits the tongue root. Then, the handle 1 is pulled upward, and the throat space is opened under the joint action of the guide part 22 and the pulling part 23. Next, the rigid bronchoscope with the tracheal tube outside is inserted, and in this step, the left and right movement of the rigid bronchoscope is limited by the guide groove 222, and the position of the tracheal port is observed through the screen, so that the rigid bronchoscope with the tracheal tube outside is accurately inserted into the trachea. Finally, the tracheal tube is left in the trachea, and the rigid bronchoscope and the guide device body 2 are removed.

[0057] The above is only a preferred embodiment of the present application, and is not intended to limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious changes made by applying the contents of the present application and the drawings should be included in the protection scope of the present application.

Claims

1. A guide device for rigid endoscopic intubation, characterized in that: It includes a handle (1) and a guide body (2), one end of the guide body (2) is connected to the handle (1), and the other end of the guide body (2) is used to insert into the throat; The guide body (2) includes a connecting rod (21), a guide part (22) and a lifting part (23). One end of the connecting rod (21) is connected to the handle (1), and the other end of the connecting rod (21) is connected to the lifting part (23) through the arc-shaped guide part (22). An endoscope guide surface (221) is provided on the side of the guide part (22) away from the handle (1). The lifting part (23) has a sheet-like structure. The connecting rod (21) includes a first rod body (211), a second rod body (212), and a third rod body (213); the rear end of the first rod body (211) is connected to the handle (1), the front end of the first rod body (211) is connected to one end of the second rod body (212), and the other end of the second rod body (212) is connected to the rear end of the third rod body (213); the front end of the third rod body (213) is connected to the guide part (22); the first rod body (211) and the third rod body (213) are parallel.

2. The auxiliary guide for rigid endoscopic cannulation according to claim 1, characterized in that: The end of the guide (22) away from the third rod (213) faces downward.

3. The auxiliary guide for rigid endoscopic cannulation according to claim 2, characterized in that: The angle between the plane where the lifting part (23) is located and the axis of the third rod (213) is between 80° and 100°.

4. The auxiliary guide for rigid endoscopic cannulation according to claim 1, characterized in that: The total length of the guide section (22) and the lifting section (23) ranges from 3 to 5 cm.

5. The auxiliary guide for rigid endoscopic cannulation according to claim 1, characterized in that: The width of the guide section (22) ranges from 1 to 1.5 cm.

6. The auxiliary guide for rigid endoscopic cannulation according to claim 1, characterized in that: The thickness of the guide part (22) ranges from 0.15 to 0.3 cm.

7. The guide device for rigid endoscopic intubation according to any one of claims 1 to 6, characterized in that: A guide groove (222) is provided on the endoscope guide surface (221).

8. The auxiliary guide for rigid endoscopic cannulation according to claim 1, characterized in that: The handle (1) has four first grooves (11) arranged from front to back on one side; the orientation of one side of the handle (1) is the same as the orientation of the end of the lifting part (23) away from the guide part (22).

9. The auxiliary guide for rigid endoscopic cannulation according to claim 8, characterized in that: A second groove (12) for palm contact is provided on the other side of the handle (1).

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