CN213554630U

CN213554630U - Novel tracheal catheter with expanding function

Info

Publication number: CN213554630U
Application number: CN202022238365.1U
Authority: CN
Inventors: 赵美一; 陈广民; 王古岩; 王弘宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-29
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a novel tracheal catheter with expanding function, which comprises a catheter body, an expanding head positioned at the end part of the catheter body and a traction component; the expanding head comprises a support ring, an expanding bracket arranged on one side of the support ring away from the catheter body and an elastic membrane sleeved outside the expanding bracket; the expanding support is made of metal, the side wall of the expanding support is in a net shape, and the outer diameter of the front end of the expanding support is smaller than that of the rear end of the expanding support in a natural state; the traction assembly comprises a traction rope connected to the expanding support, and the traction rope is used for applying tension to the expanding support so as to expand the front end of the expanding support. Adopt above-mentioned technical scheme, the utility model discloses a novel endotracheal tube with expand and prop function, its front end portion is narrow wide toper in back before roughly under natural state, consequently compares with traditional endotracheal tube and passes the narrow position of air flue more easily, and vice damage still less.

Description

Novel tracheal catheter with expanding function

Technical Field

The utility model relates to a novel endotracheal tube with expand and prop function belongs to medical instrument technical field.

Background

Endotracheal intubation is the insertion of a tracheal tube into the trachea of a patient to maintain the normal breathing of the patient and is widely used in the fields of emergency treatment, general anesthesia, treatment with a respirator, and the like. Under the condition of new coronary epidemic, a new coronary patient must be treated by a breathing machine according to the indexes of severe cases, and successful trachea cannula is an important prerequisite for successful treatment of severe cases. However, patients with narrow airways, such as thyroid tumor patients, thymus tumor patients, intratracheal tumor patients, esophageal cancer patients and the like, are frequently encountered in clinic, and the local tracheal diameter of the patients is narrow due to compression or tumor infiltration, so that the daily lung ventilation of the patients is affected, and tracheal intubation and mechanical ventilation are extremely difficult. At present, the front and back inner diameters of the tracheal catheter in clinic and market are consistent, and the outer diameter of the tracheal catheter cannot be changed. For tracheal intubation of patients with narrow airways, clinicians often choose a thinner tracheal tube to pass smoothly through the narrow part of the airway, but it is known from fluid mechanics equations that when the inner diameter of the airway is reduced by 1 time, ventilation will increase the resistance by 16 times. The inner diameter of the tracheal catheter greatly influences the ventilation resistance and the ventilation effect, and the thinner catheter is selected to be easy to pass through a narrow part, but the ventilation resistance and the ventilation effect of a patient are seriously increased. Therefore, on the premise of ensuring smooth passing through a narrow part, the inner diameter of the tracheal catheter is improved to the maximum extent, so that better mechanical ventilation can be obtained for a patient. At present, no special tracheal catheter for patients with tracheal stenosis exists in clinic and market.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the utility model is to provide a novel endotracheal tube with expand and prop function, when carrying out trachea cannula to the narrow patient in air flue, guarantee smoothly under the prerequisite at narrow position, furthest improves the endotracheal tube internal diameter and is favorable to the patient to obtain better ventilation effect.

In order to achieve the purpose, the novel tracheal catheter with the expanding function comprises a catheter body, an expanding head and a traction assembly, wherein the expanding head is positioned at the end part of the catheter body; the expanding head comprises a support ring, an expanding bracket arranged on one side of the support ring away from the catheter body and an elastic membrane sleeved outside the expanding bracket; the expanding support is made of metal, the side wall of the expanding support is in a net shape, and the outer diameter of the front end of the expanding support is smaller than that of the rear end of the expanding support in a natural state; the traction assembly comprises a traction rope connected to the expanding support, and the traction rope is used for applying tension to the expanding support so as to expand the front end of the expanding support.

The expanding support comprises a plurality of support rods, the pulling ropes are multiple, and one ends of the pulling ropes are connected to the support rods and bypass the outer sides of the support rings.

One end of the traction rope, which is far away from the expanding support, extends to the outer side of the catheter body and then is connected with the adjusting knob.

The adjustment knob includes the rotating part, the haulage rope can twine on the rotating part.

The adjusting knob further comprises a ratchet wheel and ratchet mechanism and an elastic reset mechanism; in the ratchet wheel and ratchet mechanism, a ratchet wheel or a ratchet and the rotating part are relatively fixed, and the ratchet wheel and the ratchet can limit the rotating direction of the rotating part when being close to and matched with each other; the elastic reset mechanism is used for pressing the rotating part to reset after the ratchet wheel and the ratchet are mutually far away.

The outer side of the elastic membrane is sleeved with a catheter cuff.

The expanding support is made of memory alloy materials.

The catheter body is made of hard rubber, a traction channel and an inflation channel are arranged in the side wall of the catheter body, the traction rope is arranged in the traction channel in a walking mode, the catheter cuff sleeved on the outer side of the elastic membrane is connected with an inflation tube, and the inflation tube is arranged in the inflation channel in a walking mode.

The support ring is made of metal, and the rear end of the expanding support is welded and fixed with the support ring.

The inner diameter of the front end of the expanding support is 2-10mm, and the inner diameter of the rear end of the expanding support is consistent with the inner diameter of the catheter body.

By adopting the technical scheme, the front end part of the novel tracheal catheter with the expanding function is in a cone shape with a narrow front part and a wide back part in a natural state, so that the novel tracheal catheter can more easily penetrate through a narrow part of an airway compared with the traditional tracheal catheter, and has less side damage; in addition, the support ring can increase the strength of the tube wall of the catheter body, so that the catheter body is not easy to collapse and deform. The utility model discloses a novel endotracheal tube with expand and prop function expands through the setting and props the support and can guarantee furthest increase pipe internal diameter, and then reduces the resistance of ventilating, improves the efficiency of ventilating, and the elasticity membrane and add in the elasticity membrane outside and establish the pipe cuff and can fully guarantee that the pipe is airtight and prevent blood and other liquid from flowing into the air flue.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the front end of the expanding bracket in fig. 1 in an expanding state.

Fig. 3 is a schematic view of the catheter body in perspective.

Fig. 4 is a schematic view of the installation structure of the support rod and the traction rope.

Fig. 5 is a schematic structural diagram of the adjusting knob.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the present embodiment provides a novel endotracheal tube with a dilating function, which comprises a tube body 106, a dilating head at the end of the tube body 106, and a traction assembly.

The expanding head comprises a support ring 201, an expanding bracket 202 arranged on one side of the support ring 201 far away from the catheter body 106 and an elastic membrane 203 sleeved outside the expanding bracket 202. The expanding bracket 202 is made of metal, has a net-shaped side wall, and has a front end outer diameter smaller than a rear end outer diameter in a natural state, so that the expanding bracket is substantially in a cone cylinder shape.

The pulling assembly comprises a pulling rope 205 connected to the expanding stent 202, and the pulling rope 205 is used for applying pulling force to the expanding stent 202 so as to expand the front end of the expanding stent.

The expanding bracket 202 comprises a plurality of support rods 202a, the support rods 202a can provide support force for the metal mesh of the expanding bracket 202, the plurality of pull ropes 205 are provided, and one end of each pull rope 205 is connected to the support rod 202a and passes around the outer side of the support ring 201, as shown in fig. 4. When the pulling rope 205 is pulled, the pulling rope 205 can transmit the pulling force to the supporting rod 202a, and one end of the supporting rod 202a is blocked by the supporting ring 201, so that the supporting rod 202a swings outwards after receiving the pulling force of the outer side inclination, and the front end part of the expanding bracket 202 is expanded.

The outside of the elastic membrane 203 is sleeved with a catheter cuff 204, the catheter cuff 204 is connected with an inflation tube 104, the inflation tube 104 is connected with an external inflation device through an inflation port 102 to inflate the catheter cuff 204, and the catheter cuff 204 can be inflated to be in an ellipsoidal shape after being inflated.

The expanding support 202 is made of memory alloy materials, so that the expanding support has good elasticity, can be supported when being subjected to tensile force, and can be reset to an initial shape after the tensile force disappears.

The catheter body 106 is made of hard rubber, a traction channel and an inflation channel are arranged in the side wall of the catheter body, the traction rope 205 is arranged in the traction channel in a walking mode, the catheter cuff 204 which is sleeved on the outer side of the elastic membrane 203 is connected with the inflation tube 104, and the inflation tube 104 is arranged in the inflation channel in a walking mode.

The support ring 201 is made of metal, and the rear end of the expanding support 202 is welded and fixed with the support ring 201. The inner diameter of the front end of the expanding bracket 202 is 2-10mm, and the inner diameter of the rear end is consistent with the inner diameter of the catheter body 106. The support ring 201 is then fixedly embedded within the sidewall of the catheter body 106. The elastic membrane 203 is made of elastic rubber membrane, has the thickness of 0.2-1.5mm, and can be attached to the expanding bracket 202 to expand along with the expansion of the expanding bracket.

As shown in FIG. 5, the end of the pull string 205 away from the stent 202 extends to the outside of the catheter body 106 and is connected to the adjusting knob 103. The adjusting knob 103 includes a rotating portion 103a, and the pulling rope 205 can be wound around the rotating portion 103a after passing through an outer guide tube 205a made of hard rubber. The adjusting knob 103 further comprises a ratchet mechanism and an elastic reset mechanism; in the present embodiment, the ratchet 103b and the rotating part 103a in the ratchet-and-ratchet mechanism are fixed relatively, and the ratchet 103b and the ratchet 103c can define the rotating direction of the rotating part 103a when they are mutually close to and matched; the elastic reset mechanism is a reset spring 103d, which is used for pressing the rotating part 103a to reset after the ratchet 103b and the ratchet 103c are separated from each other. The pull cord 205 can be retracted by forward or reverse rotation of the rotating portion 103 a. The rotating part 103a can be smoothly rotated forward and backward by the ratchet mechanism when the pulling rope 205 is tightened, and when the pulling rope 205 needs to be released, the rotating part 103a can be pulled to disengage the ratchet 103b and the ratchet 103c and then the rotating part 103a can be rotated backward.

The utility model discloses a novel endotracheal tube with expand and prop function relaxs adjust knob 103 before using to narrow wide natural form after before making the preceding tip be. After the catheter body 106 is inserted into the tube core for molding and the tip is coated with a lubricating medicament, the catheter body 106 and the tube core are inserted into a glottis under the direct vision of a laryngoscope, and the catheter is fixed and withdrawn from the tube core. The catheter slowly goes deep into the trachea, and when the catheter passes through the narrow part, the narrow part is gradually expanded under the gradual expansion of the expansion support 202, the support ring 201 and the catheter body 106. After the target depth is reached after the stenosis is passed, the adjusting knob 103 is tightened, the pulling rope 205 pulls up the expanding bracket 202, and the expanding bracket 202 expands the elastic membrane 203, at this time, the front end portion is in a cylindrical shape with the front and rear diameters being basically consistent. The catheter cuff 204 is inflated through the cuff inflation port 102, the tracheal catheter is fixed, and the respiratory circuit is connected, so that the intubation operation is completed.

By adopting the technical scheme, the front end part of the novel tracheal catheter with the expanding function is in a cone shape with a narrow front part and a wide back part in a natural state, so that the novel tracheal catheter can more easily penetrate through a narrow part of an airway compared with the traditional tracheal catheter, and has less side damage; in addition, the support ring 201 can increase the wall strength of the catheter body 106, making the catheter body 106 less prone to collapse and deformation. The utility model discloses a novel endotracheal tube with expand and prop function expands through the setting and props support 202 and can guarantee that furthest increases the pipe body 106 internal diameter, and then reduces the resistance of ventilating, improves the efficiency of ventilating, and elasticity membrane 203 and add in the elasticity membrane 203 outside and establish pipe cover bag 204 and can fully guarantee that the pipe is airtight and prevent blood and other liquid from flowing into the air flue.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a novel endotracheal tube with expand and prop function which characterized in that: comprises a catheter body, an expanding head positioned at the end part of the catheter body and a traction assembly; the expanding head comprises a support ring, an expanding bracket arranged on one side of the support ring away from the catheter body and an elastic membrane sleeved outside the expanding bracket; the expanding support is made of metal, the side wall of the expanding support is in a net shape, and the outer diameter of the front end of the expanding support is smaller than that of the rear end of the expanding support in a natural state; the traction assembly comprises a traction rope connected to the expanding support, and the traction rope is used for applying tension to the expanding support so as to expand the front end of the expanding support.

2. The novel endotracheal tube with dilation function according to claim 1, characterized in that: the expanding support comprises a plurality of support rods, the pulling ropes are multiple, and one ends of the pulling ropes are connected to the support rods and bypass the outer sides of the support rings.

3. The novel endotracheal tube with the dilating function as claimed in claim 2, wherein: one end of the traction rope, which is far away from the expanding support, extends to the outer side of the catheter body and then is connected with the adjusting knob.

4. The novel endotracheal tube with the dilating function as claimed in claim 3, wherein: the adjustment knob includes the rotating part, the haulage rope can twine on the rotating part.

5. The novel endotracheal tube with the dilating function as recited in claim 4, wherein: the adjusting knob further comprises a ratchet wheel and ratchet mechanism and an elastic reset mechanism; in the ratchet wheel and ratchet mechanism, a ratchet wheel or a ratchet and the rotating part are relatively fixed, and the ratchet wheel and the ratchet can limit the rotating direction of the rotating part when being close to and matched with each other; the elastic reset mechanism is used for pressing the rotating part to reset after the ratchet wheel and the ratchet are mutually far away.

6. The novel endotracheal tube with an expanding function as set forth in any one of claims 1 to 5, characterized in that: the outer side of the elastic membrane is sleeved with a catheter cuff.

7. The novel endotracheal tube with an expanding function as set forth in any one of claims 1 to 5, characterized in that: the expanding support is made of memory alloy materials.

8. The novel endotracheal tube with an expanding function as set forth in any one of claims 1 to 5, characterized in that: the catheter body is made of hard rubber, a traction channel and an inflation channel are arranged in the side wall of the catheter body, the traction rope is arranged in the traction channel in a walking mode, the catheter cuff sleeved on the outer side of the elastic membrane is connected with an inflation tube, and the inflation tube is arranged in the inflation channel in a walking mode.

9. The novel endotracheal tube with an expanding function as set forth in any one of claims 1 to 5, characterized in that: the support ring is made of metal, and the rear end of the expanding support is welded and fixed with the support ring.

10. The novel endotracheal tube with an expanding function as set forth in any one of claims 1 to 5, characterized in that: the inner diameter of the front end of the expanding support is 2-10mm, and the inner diameter of the rear end of the expanding support is consistent with the inner diameter of the catheter body.