Sputum suction structure for tracheal tube

Abstract

The utility model relates to a kind of sputum suction structure for tracheal catheter, including tube body, tube body is equipped with Murphy side hole, tube body is equipped with connector, tube body is connected with medicine delivery pipe, tube body is equipped with scale, tube body is set to be bevel, bevel is spliced with extension block, extension block is equipped with sputum suction groove, extension block is equipped with notch, tube body is equipped with sputum delivery cavity, sputum delivery cavity is connected with sputum suction groove, tube body is equipped with sputum head, sputum head is connected with sputum delivery cavity;Through the reasonable design of extension block, sputum suction groove, notch and sputum delivery cavity, sputum can be efficiently entered and transported, and sputum suction efficiency is significantly improved;The design does not need additional sputum suction tube, avoids occupying tracheal catheter internal space, and will not increase newborn respiratory resistance, affect its breathing;Meanwhile, notch design can prevent sputum from being stuck in sputum suction port, avoid tracheal catheter opening blockage, effectively guarantee newborn life safety.

Description

Technical Field

[0001] This utility model belongs to the field of endotracheal tube technology, specifically relating to a suction structure for endotracheal tubes. Background Technology

[0002] An endotracheal tube is a medical device inserted into the trachea. It plays a vital role in the treatment of newborns, mainly in establishing a respiratory channel, providing respiratory support, protecting the airway, and facilitating airway management.

[0003] When using a tracheal tube to suction sputum in newborns, medical staff first insert the tracheal tube into the newborn's airway, and then insert a special suction tube into the tracheal tube. With the suction device connected to the suction tube, the sputum in the newborn's airway can be suctioned out. This operation not only occupies part of the space inside the tracheal tube, increasing the newborn's breathing resistance and affecting their breathing, but also, when the suction tube is pulled out, if some sputum is not suctioned into the suction tube, it may block the opening of the tracheal tube, leading to breathing difficulties in the newborn, and in severe cases, even threatening their life. To address these problems, we have proposed a suction structure for tracheal tubes. Utility Model Content

[0004] The purpose of this invention is to provide a suction structure for endotracheal tubes to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A suction structure for an endotracheal tube includes a tube body with a Murphy side hole on its lower side, a connector at the upper end of the tube body, a drug delivery tube connected to the outer side of the tube body, graduations on the outer side of the tube body, a bevel at the lower end of the tube body, an extension block attached to the foremost end of the bevel, a suction groove at the lower end of the extension block, a slot in the inner wall of the extension block communicating with the suction groove, a suction cavity inside the tube body, one end of the suction cavity communicating with the inside of the suction groove, and a sputum receiving head on the outer side of the tube body communicating with the other end of the suction cavity.

[0007] Further specified, the extension block has a specific length, which is less than 0.5 cm when measured from the connection between the bevel and the extension block to the lower end of the extension block.

[0008] Furthermore, the inner and outer walls of the extension block coincide with the inner and outer walls of the tube.

[0009] Furthermore, the depth of the suction groove is greater than the vertical length of the groove opening.

[0010] Further specified, the bevel and the edge corners of the extension block are rounded.

[0011] Further defined, the lower end of the connector is sleeved on the upper part of the outer side of the tube body, an abutment ring is fixed in the middle of the inner wall of the connector, the abutment ring abuts against the upper end of the tube body, the inner wall of the upper end of the tube body is symmetrically provided with slots, and the lower end of the abutment ring is provided with a locking block that matches the two slots.

[0012] Furthermore, the inner diameter of the abutment ring is equal to the inner diameter of the tube body.

[0013] Further specifying, the cross-sections of the two slots are set as isosceles trapezoids, the two blocks are set as isosceles trapezoidal prisms, and the two sides of the isosceles trapezoidal prisms and the two sides of the corresponding isosceles trapezoidal shapes are provided with anti-slip textures.

[0014] The beneficial effects of this utility model are:

[0015] 1. The unique design of the extension block, suction groove, slot, and delivery chamber allows for efficient entry and delivery of sputum, improving suction efficiency. The slot increases the suction range, prevents sputum blockage, and eliminates the need for an additional suction tube, avoiding space occupation by the endotracheal tube and increased breathing resistance.

[0016] 2. The connector and tube body are connected via an abutment ring, groove, and locking block, ensuring a stable structure. The isosceles trapezoidal design and anti-slip texture enhance connection stability, while the locking block also supports the tube body, preventing deformation from affecting breathing.

[0017] 3. It integrates ventilation, suctioning, and medication delivery functions; the connector is convenient for connecting to external equipment such as ventilators; the medication delivery tube can be administered as needed; the scale helps with precise insertion; and the operation at each stage is smooth and efficient, reducing the complexity of preparation and operation.

[0018] 4. The Murphy side port prevents tracheal wall blockage and ensures gas flow; the beveled design facilitates catheter insertion and reduces the risk of tissue damage; the extension block smoothly transitions to the tube body with rounded corners to reduce scratches and irritation to the airway, making it especially suitable for fragile airways such as those of newborns. Attached Figure Description

[0019] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the sputum suction structure for an endotracheal tube according to the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the sputum suction structure for an endotracheal tube according to the present invention. Figure 2 ;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a cross-sectional structural diagram of a suction structure for an endotracheal tube according to the present invention;

[0024] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0025] Figure 6 for Figure 4 Enlarged structural diagram at point C;

[0026] The symbols for the main components are explained below:

[0027] Tube body 100, Murphy side hole 101, connector 102, drug delivery tube 103, extension block 200, suction groove 201, groove opening 202, sputum delivery cavity 203, sputum receiving head 204, abutment ring 300, locking groove 301, locking block 302. Detailed Implementation

[0028] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Example 1:

[0030] like Figures 1-5 As shown, a suction structure for an endotracheal tube includes a tube body 100, a Murphy side hole 101 on the lower side of the tube body 100, a connector 102 at the upper end of the tube body 100, a drug delivery tube 103 connected to the outer side of the tube body 100, graduations on the outer side of the tube body 100, a bevel at the lower end of the tube body 100, an extension block 200 connected to the front end of the bevel, a suction groove 201 at the lower end of the extension block 200, a slot 202 on the inner wall of the extension block 200 and the slot 202 communicating with the suction groove 201, a sputum delivery cavity 203 inside the tube wall of the tube body 100, one end of the sputum delivery cavity 203 communicating with the inside of the suction groove 201, and a sputum receiving head 204 on the outer side of the tube body 100 communicating with the other end of the sputum delivery cavity 203.

[0031] The tube body 100, connector 102, and medication delivery tube 103 together form an endotracheal tube, which provides an auxiliary breathing channel for newborns. The Murphy side hole 101 prevents the endotracheal tube from being blocked by the tracheal wall during use, ensuring gas flow. The connector 102 is used to connect other devices, such as ventilators. The medication delivery tube 103 is used to deliver medication into the trachea. The graduations help medical staff understand the depth of tube insertion. The lower end of the tube body 100 is designed with an angled opening, which helps the tube to be inserted into the trachea more easily and reduces tissue damage. The extension block 200 is an important component, providing key structural support for the suction function. The suction groove 201 is the part for suctioning sputum. When the opening of the suction groove 201 adheres to the inner wall of the trachea, the groove 202 can also suction sputum, while also increasing the suction range and improving suction efficiency. The sputum delivery chamber 203 is the part for transporting the suctioned sputum. The sputum receiving head 204 can be used to connect other devices, such as suction devices.

[0032] Preparation stage: Connect the endotracheal tube to external equipment such as a ventilator via connector 102, determine the insertion depth using the scale, and prepare for insertion; if medication is required, prepare for drug delivery via infusion tubing 103; connect to an external suction device via sputum collection head 204.

[0033] Insertion stage: Insert the end of the tube 100 with the bevel into the trachea through the newborn's mouth or nose. The bevel design helps to insert more smoothly and reduce damage to tissues. The Murphy side hole 101 can prevent the tracheal wall from blocking the tube during insertion and use, ensuring normal gas flow.

[0034] Suctioning stage: After the tube body 100 is inserted into the appropriate position, the suction device is activated. The suction device can use the principle of negative pressure suction to suction out sputum or secretions inside the respiratory tract. During the suctioning process, the sputum will enter the suction groove 201 at the lower end of the extension block 200. Since the groove 202 is connected to the suction groove 201, the sputum can enter the sputum delivery chamber 203 inside the tube body 100 through the suction groove 201 and the groove 202.

[0035] Sputum collection stage: The sputum that enters the sputum infusion chamber 203 will be transported along the sputum infusion chamber 203 to the collection container of the suction device outside the tube body 100, thereby realizing the collection of sputum.

[0036] In this embodiment, the rational design of the extension block 200, suction groove 201, groove 202, and sputum delivery cavity 203 enables sputum to enter and be transported efficiently, significantly improving suction efficiency. This design eliminates the need for an additional suction tube, avoids occupying the internal space of the endotracheal tube, and does not increase the newborn's breathing resistance or affect their breathing. At the same time, the groove 202 design prevents sputum from getting stuck in the suction port, avoids blockage of the endotracheal tube opening, and effectively protects the newborn's life safety.

[0037] Example 2:

[0038] like Figures 1-6 As shown, based on Embodiment 1, other components of a suction structure for a tracheal tube are further described. The extension block 200 has a specific length, which is less than 0.5 cm when measured from the connection between the oblique opening and the extension block 200 to the lower end of the extension block 200.

[0039] Typically, when using a suction catheter, it is inserted 1-2 cm beyond the opening of the endotracheal tube. This is based on tracheal anatomy and clinical experience, ensuring effective suction while minimizing adverse stimulation and damage to the airway. Considering the patient is a newborn, the extension block 200 is set to be less than 0.5 cm. This not only reduces damage to the airway from the tube body 100 and the extension block 200 during suctioning but also prevents the extension block 200 from becoming too long and bending.

[0040] The inner and outer walls of the extension block 200 coincide with the inner and outer walls of the tube body 100.

[0041] The inner and outer surfaces of the extension block 200 are completely fitted and aligned with the inner and outer surfaces of the tube body 100. On the same plane, their inner and outer walls form a continuous and smooth inner surface without gaps or steps.

[0042] The smooth inner surface helps ensure that air can flow smoothly through the extension block 200 when it flows inside the tube 100, without causing turbulence or obstruction due to unevenness of the inner wall.

[0043] The outer surface is smooth, and from the appearance, there are no obvious protrusions or depressions at the junction of the extension block and the tube, forming an integral and continuous outer surface. When inserted into the newborn's body, it can prevent damage to the airway at the connection between the extension block 200 and the tube 100.

[0044] The depth of the suction groove 201 is greater than the vertical length of the groove opening 202.

[0045] The suction groove 201 is deeper, providing sufficient space to store sputum and prevent it from overflowing during suctioning. The vertical length of the groove opening 202 is relatively small, resulting in a portion of the suction groove 201 being unconnected. The suction opening of the unconnected suction groove 201 is smaller than that of the connected suction groove 201, thus allowing for greater suction force when sputum reaches the unconnected suction groove 201.

[0046] The bevel and the edge corners of the extension block 200 are rounded.

[0047] The sharp edges of the bevel and extension block 200 are processed into smooth rounded corners. This prevents the bevel from being too sharp and causing scratches to the airway when using the endotracheal tube. At the same time, the rounded bevel and extension block 200 also help sputum flow more smoothly and reduce the resistance and turbulence of sputum at the bevel.

[0048] The lower end of the connector 102 is sleeved on the upper part of the outer side of the tube body 100. An abutment ring 300 is fixed in the middle of the inner wall of the connector 102. The abutment ring 300 abuts against the upper end of the tube body 100. The inner wall of the upper end of the tube body 100 is symmetrically provided with slots 301. The lower end of the abutment ring 302 is provided with a locking block 302 that matches the two slots 301.

[0049] The lower part of the connector 102 is fitted over the outside of the pipe body 100 and is positioned above the pipe body 100. This fitting method creates a nested relationship between the connector 102 and the pipe body 100 in space, providing a basis for the connection between the two. The abutment ring 300 contacts and abuts against the upper end of the pipe body 100. It plays a role in positioning and supporting, restricting the axial movement of the pipe body 100 within the connector 102, and ensuring that the pipe body 100 and the connector 102 can maintain a relatively stable positional relationship when connected.

[0050] When the connector 102 is fitted onto the pipe body 100, the locking block 302 can be embedded in the locking groove 301, which further enhances the stability of the connection between the connector 102 and the pipe body 100, prevents relative rotation or axial separation between the two, and allows the connector 102 and the pipe body 100 to be connected more tightly and reliably, forming a complete structure together. At the same time, a clamping groove can be formed between the two locking blocks 302 and the connector 102, and the two clamping grooves together clamp the inner wall of the pipe body 100.

[0051] Among them, the two locking blocks 302 can support the inner wall of the tube 100, prevent the tube 100 from deforming, reduce the inner wall space of the tube 100, and affect the patient's breathing.

[0052] The inner diameter of the connecting ring is 300, which is equal to the inner diameter of the tube body.

[0053] The abutment ring 300 and the inner side of the tube body 100 are aligned on the same plane, so as not to change the size of the inner wall opening of the tube body 100 and affect the smoothness of the patient's breathing.

[0054] The cross-sections of the two slots 301 are set as isosceles trapezoids, and the two blocks 302 are set as isosceles trapezoidal columns. The two sides of the isosceles trapezoidal columns and the two sides of the corresponding isosceles trapezoidal shapes are provided with anti-slip textures.

[0055] The shape design of the slot 301 and the block 302 is to better achieve connection and cooperation. The isosceles trapezoidal shape allows the block 302 to provide a better guiding effect when inserted into the slot 301, which facilitates assembly. At the same time, this shape can also increase the contact area between the block 302 and the slot 301 to a certain extent, thereby improving the stability and load-bearing capacity of the connection.

[0056] The anti-slip texture increases the friction between the card block 302 and the card slot 301. When the card block 302 is inserted into the card slot 301, the anti-slip texture can effectively prevent the card block 302 from sliding in the card slot 301, further improving the reliability and stability of the entire connection structure.

[0057] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A suction structure for an endotracheal tube, comprising a tube body (100), a Murphy side hole (101) on the lower side of the tube body (100), a connector (102) at the upper end of the tube body (100), a drug delivery tube (103) connected to the outside of the tube body (100), and graduations on the outside of the tube body (100), characterized in that: The lower end of the tube body (100) is set with an oblique opening, and an extension block (200) is spliced ​​at the front end of the oblique opening. A suction groove (201) is opened at the lower end of the extension block (200). A groove (202) is opened on the inner wall of the extension block (200), and the groove (202) is connected to the suction groove (201). A sputum delivery chamber (203) is opened inside the tube wall of the tube body (100). One end of the sputum delivery chamber (203) is connected to the inside of the suction groove (201). A sputum receiving head (204) is provided on the outside of the tube body (100), and the sputum receiving head (204) is connected to the other end of the sputum delivery chamber (203).

2. The sputum suction structure for a tracheal tube according to claim 1, characterized in that: The extension block (200) has a specific length, which is less than 0.5 cm when measured from the connection between the bevel and the extension block (200) to the lower end of the extension block (200).

3. The sputum suction structure for a tracheal tube according to claim 1, characterized in that: The inner and outer walls of the extension block (200) coincide with the inner and outer walls of the tube body (100).

4. The sputum suction structure for a tracheal tube according to claim 1, characterized by: The depth of the suction groove (201) is greater than the vertical length of the groove (202).

5. The sputum suction structure for a tracheal tube according to claim 1, characterized by: The bevel and the edge corners of the extension block (200) are rounded.

6. The sputum suction structure for a tracheal tube according to claim 1, characterized by: The lower end of the connector (102) is sleeved on the upper part of the outer side of the tube body (100). An abutment ring (300) is fixed in the middle of the inner wall of the connector (102). The abutment ring (300) abuts against the upper end of the tube body (100). The inner wall of the upper end of the tube body (100) is symmetrically provided with slots (301). The lower end of the abutment ring (300) is provided with a locking block (302) that matches the two slots (301).

7. The sputum suction structure for a tracheal tube according to claim 6, characterized by: The inner diameter of the abutment ring (300) is equal to the inner diameter of the tube body (100).

8. The sputum suction structure for a tracheal tube according to claim 6, characterized by: The cross-sections of the two slots (301) are set as isosceles trapezoids, and the two blocks (302) are set as isosceles trapezoidal columns. The two waist surfaces of the isosceles trapezoidal columns and the two waist surfaces of the corresponding isosceles trapezoidal shapes are provided with anti-slip textures.

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