Telescopic transnasal exchange tube

Abstract

The utility model relates to a telescopic transnasal exchange tube, which belongs to the field of medical instruments and comprises a hollow telescopic sleeve. The tracheal catheter connector is detachably mounted at one end of the telescopic sleeve; the telescopic sleeve solves the problem that secondary intubation through the nasal trachea is difficult, the length requirement during secondary intubation through the nasal trachea can be met, the length can be increased by directly stretching the telescopic sleeve when secondary intubation through the nasal trachea is needed, smooth operation of secondary intubation through the nasal trachea is guaranteed, and the telescopic sleeve is simple in structure and convenient to use. The tracheal catheter is simple in structure, convenient to operate and easy to carry, and can be communicated with a respirator through the tracheal catheter connector to supply oxygen to a patient in emergency, so that life danger of the patient is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a telescopic nasal exchange tube. Background Art

[0002] Endotracheal intubation refers to the technique of inserting a special endotracheal tube into the trachea through the glottis for ventilation and oxygen supply. However, in clinical practice, whether the tube can be removed after surgery is the most difficult problem, especially for patients with difficult airways. Due to the stimulation of surgery, it is easy to have symptoms such as dyspnea. In addition, it is more difficult to intubate patients with difficult airways, and it is easy to threaten the patient's life safety because the tube cannot be re-intubated after extubation.

[0003] To prevent secondary intubation failure, an exchange tube is often used to be placed into the patient's airway along the endotracheal tube in clinical practice. After the endotracheal tube is removed, if the patient has difficulty breathing, the endotracheal tube can be directly inserted into the trachea along the exchange tube. The commonly used exchange tube is suitable for assisting secondary intubation through the mouth. Secondary intubation using an exchange tube still takes a certain amount of time and still poses a greater risk to patients in emergency situations.

[0004] In order to meet the needs of surgery and long-term tube wearing in the ICU, some patients need nasal intubation, but the nasal trachea is too long to use an exchange tube for oral intubation. There is also no exchange tube for secondary nasal intubation in the relevant technology, so the exchange tube cannot be used to ensure the safety of patients with difficult airway after surgery.

[0005] Patent document CN211634765U discloses a new type of tracheal tube exchange tube, including: a tube body, which is composed of an elastic membrane; and a frame, which is composed of a plurality of metal strips embedded in the tube wall of the tube body, and the metal strips extend from the top of the tube body along the central axis of the tube body to the end of the tube body, and the radial cross section of the metal strips is in the shape of a fan ring, and when the tube body is not expanded, all the metal strips together form a cylindrical structure with a circular ring shape in the radial cross section. However, the tracheal tube exchange tube is still used for oral tracheal intubation to shorten the time of secondary intubation.

[0006] Therefore, how to shorten the time of secondary intubation of nasotracheal intubation and reduce the risk of patients has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0007] In order to shorten the time of nasotracheal intubation and reduce the risk of secondary tube replacement for patients, the utility model provides a retractable nasotracheal exchange tube to solve the above problems. The technical solution is as follows:

[0008] The telescopic nasal exchange tube comprises: a telescopic sleeve which is hollow; a tracheal tube connector which is detachably mounted on one end of the telescopic sleeve; and an oxygen outlet which is arranged at the end of the telescopic sleeve away from the tracheal tube connector.

[0009] Preferably, the telescopic sleeve comprises an outer sleeve and at least one inner sleeve, the outer sleeve is close to the endotracheal tube connector, the inner sleeve is close to the oxygen outlet, the inner diameter of the outer sleeve is larger than the outer diameter of the inner sleeve, and the inner sleeve can slide in the outer sleeve.

[0010] Preferably, the outer wall of the inner sleeve is provided with a protrusion, and the inner wall of the outer sleeve adjacent to the inner sleeve is provided with a groove along the length direction thereof, and the protrusion of the inner sleeve matches the groove of the adjacent outer sleeve.

[0011] Preferably, a plurality of positioning grooves are provided along the length direction of the groove.

[0012] Preferably, along the direction from the tracheal tube connector to the oxygen outlet, at one end close to the adjacent inner sleeve, the outer wall of the outer sleeve gradually converges toward the inner wall to form a constricted opening.

[0013] Preferably, the endotracheal tube connector is detachably connected to the telescopic sleeve via a knob connector.

[0014] Preferably, the inner wall and the outer wall of the telescopic sleeve are provided with a lubricating layer.

[0015] Preferably, the telescopic sleeve body is made of PP material.

[0016] Preferably, the end of the telescopic sleeve close to the oxygen outlet is made of medical soft silicone material.

[0017] Preferably, the cross-sectional dimensions of the endotracheal tube connector are larger than the cross-sectional dimensions of the telescopic sleeve.

[0018] Beneficial effects:

[0019] The beneficial effects of the technical solution of the utility model are as follows:

[0020] 1. A telescopic sleeve is provided to meet the length requirement for secondary nasotracheal intubation. When secondary nasotracheal intubation is required, the length can be increased by directly stretching it to ensure the smooth secondary nasotracheal intubation. When secondary oral tracheal intubation is required, it can be shortened. It is easy to operate and carry.

[0021] 2. The telescopic sleeve is hollow, and one end is provided with a tracheal tube connector for connecting the telescopic sleeve and the ventilator. In an emergency, emergency oxygen can be given to the patient to reduce the risk of the patient's life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a cross-sectional view of the telescopic sleeve of the utility model;

[0025] Figure 3 It is a cross-sectional view of the outer sleeve of the utility model.

[0026] In the figure, 10, telescopic sleeve; 11, outer sleeve; 12, groove; 13, inner sleeve; 14, bump; 15, positioning groove; 16, tightening port; 20, endotracheal tube connector; 30, oxygen outlet. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] like Figure 1 As shown, the telescopic nasal exchange tube includes: a telescopic sleeve 10, the telescopic sleeve 10 is hollow;

[0029] An endotracheal tube connector 20, which is detachably mounted on one end of the telescopic sleeve 10;

[0030] The oxygen outlet 30 is arranged at one end of the telescopic sleeve 10 away from the tracheal tube connector 20 .

[0031] In this embodiment, the telescopic sleeve 10 can meet the length requirement for secondary nasotracheal intubation. When secondary nasotracheal intubation is required, the length can be increased by directly stretching to ensure the smooth progress of secondary nasotracheal intubation. When secondary oral intubation is required, it can be shortened, and it is easy to operate and carry. One end of the telescopic sleeve 10 is provided with a tracheal tube connector 20 for connecting the telescopic sleeve 10 and the ventilator, which can be used for emergency oxygen supply to reduce the risk to patients.

[0032] Specifically, one end of the tracheal tube connector 20 can be connected to a threaded tube, and the threaded tube is connected to a ventilator or an anesthesia machine for oxygen supply.

[0033] like Figure 2 As shown, the telescopic sleeve 10 includes an outer sleeve 11 and at least one inner sleeve 13. The outer sleeve 11 is close to the endotracheal tube connector 20, and the inner sleeve 13 is close to the oxygen outlet 30. The inner diameter of the outer sleeve 11 is larger than the outer diameter of the inner sleeve 13, and the inner sleeve 13 can slide in the outer sleeve 11.

[0034] In this embodiment, the outer diameter of the telescopic sleeve 10 gradually decreases along the direction from the tracheal tube connector 20 to the oxygen outlet 30. During secondary intubation, when the tracheal tube is inserted into the trachea along the telescopic sleeve, it is not restricted by the change in the outer diameter of the telescopic sleeve 10, and intubation can be performed directly along the telescopic sleeve 10, thereby improving the fluency of the secondary intubation and ensuring the smoothness of the secondary nasotracheal intubation.

[0035] like Figure 2 As shown, the outer wall of the inner sleeve 13 is provided with a protrusion 14 , and the inner wall of the outer sleeve 11 adjacent to the inner sleeve 13 is provided with a groove 12 along the length direction thereof, and the protrusion 14 of the inner sleeve 13 matches the groove 12 of the adjacent outer sleeve 11 .

[0036] In this embodiment, the protrusion 14 on the outer wall of the inner sleeve 13 and the groove 12 on the inner wall of the outer sleeve 11 cooperate with each other to achieve the telescopic function. When secondary nasotracheal intubation is required, the length can be increased by directly stretching, thereby ensuring the smooth implementation of secondary nasotracheal intubation.

[0037] like Figure 3 As shown, a plurality of positioning grooves 15 are provided on the inner wall of the outer sleeve 11 along the length direction of the groove 12 .

[0038] In this embodiment, when the telescopic sleeve 10 is extended to a suitable length, the medical staff holds the outer sleeve 11 and the inner sleeve 13 with both hands respectively, and rotates the inner sleeve 13 along the length direction of the positioning groove 15 to fix the length of the telescopic sleeve 10 .

[0039] like Figure 2As shown, along the direction from the tracheal tube connector to the oxygen outlet 30 , at one end close to the adjacent inner sleeve 13 , the outer wall of the outer sleeve 11 gradually converges toward the inner wall to form a constriction opening 16 .

[0040] In this embodiment, a constriction opening 16 is provided at the connection between the outer sleeve 11 and the inner sleeve 13, and the outer diameter of the connection between the outer sleeve 11 and the inner sleeve 13 changes slowly and evenly, thereby reducing damage to the nasal mucosa.

[0041] like Figure 1 As shown, the telescopic sleeve 10 is detachably connected to the endotracheal tube connector 20 .

[0042] In this embodiment, a selection can be made according to the patient's condition: the endotracheal tube connector 20 can be removed for secondary intubation of the endotracheal tube; in an emergency when the endotracheal tube cannot be successfully inserted or the patient's condition is critical, the endotracheal tube connector 20 can be connected to a ventilator or an anesthesia machine, and the hollow telescopic sleeve 10 can be used for emergency oxygen supply or emergency anesthesia to maintain the patient's life safety.

[0043] The inner wall and the outer wall of the telescopic sleeve 10 are provided with a lubricating layer. Optionally, a lubricating liquid is applied to the inner wall and the outer wall of the telescopic sleeve.

[0044] In this embodiment, a lubricating layer is provided on the inner wall of the telescopic sleeve 10 to make it easier to lengthen or shorten the telescopic sleeve 10; a lubricating layer is provided on the outer wall of the telescopic sleeve 10 to protect the nasal mucosa and avoid damage and bleeding.

[0045] The main body of the telescopic sleeve 10 is made of PP material. The PP material is soft and can protect the nasal mucosa and avoid damage and bleeding; at the same time, it has a certain supporting force, can meet the requirements of being placed in the nasal cavity, and is convenient for the insertion of the endotracheal tube, which can improve the success rate of intubation.

[0046] The end of the telescopic tube 10 near the oxygen outlet 30 is made of medical soft silicone material. The soft silicone material allows the telescopic tube 10 to protect the patient's airway during the insertion process and reduce airway damage.

[0047] The cross-sectional dimension of the endotracheal tube connector 20 is larger than that of the telescopic sleeve 10. When the telescopic sleeve is about to completely slide into the patient's body, the endotracheal tube connector is pressed down against the patient's nasal cavity to prevent the telescopic sleeve 10 from sliding into the patient's body.

[0048] The steps of using this utility model are as follows:

[0049] (1) Stretch the telescopic sleeve 10 to a suitable length and rotate the inner sleeve 13 to fix the length;

[0050] (2) inserting the telescopic sleeve 10 into the patient's airway along the endotracheal tube;

[0051] (3) After the endotracheal tube is removed, if the patient's condition is urgent, the endotracheal tube connector 20 is used to connect the ventilator for emergency oxygen supply; if the patient needs to replace the endotracheal tube, the endotracheal tube connector 20 is removed and the endotracheal tube is inserted into the patient's airway along the telescopic sleeve 10.

[0052] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A retractable nasal exchange tube, characterized in that: include: A telescopic sleeve, wherein the telescopic sleeve is hollow; An endotracheal tube connector, detachably mounted on one end of the telescopic sleeve; The oxygen outlet is arranged at one end of the telescopic sleeve away from the tracheal tube connector.

2. The telescopic nasal exchange tube according to claim 1, characterized in that: The telescopic sleeve comprises an outer sleeve and at least one inner sleeve, the outer sleeve is close to the tracheal tube joint, the inner sleeve is close to the oxygen outlet, the inner diameter of the outer sleeve is larger than the outer diameter of the inner sleeve, and the inner sleeve can slide in the outer sleeve.

3. The telescopic nasal exchange tube according to claim 2, characterized in that: The outer wall of the inner sleeve is provided with a bulge, and the inner wall of the outer sleeve adjacent to the inner sleeve is provided with a groove along the length direction thereof, and the bulge of the inner sleeve matches with the groove of the adjacent outer sleeve.

4. The telescopic nasal exchange tube according to claim 3, characterized in that: A plurality of positioning grooves are arranged along the length direction of the groove.

5. The telescopic nasal exchange tube according to claim 2, characterized in that: Along the direction from the tracheal tube connector to the oxygen outlet, at one end close to the adjacent inner sleeve, the outer wall of the outer sleeve gradually converges toward the inner wall to form a tightening opening.

6. The telescopic nasal exchange tube according to claim 1, characterized in that: The tracheal tube joint is detachably connected to the telescopic sleeve via a knob joint.

7. The telescopic nasal exchange tube according to claim 1, characterized in that: The inner wall and the outer wall of the telescopic sleeve are provided with a lubricating layer.

8. The telescopic nasal exchange tube according to claim 1, characterized in that: The telescopic sleeve body is made of PP material.

9. The telescopic nasal exchange tube according to claim 1, characterized in that: The end of the telescopic sleeve close to the oxygen outlet is made of medical soft silicone material.

10. The telescopic nasal exchange tube according to claim 1, characterized in that: The cross-sectional dimension of the tracheal tube connector is greater than the cross-sectional dimension of the telescopic sleeve.

Images