Bronchial spraying freezing system

A technology of spray freezing and bronchi, which is applied in the direction of catheters, cooling surgical instruments, medical science, etc., can solve the problems of risk, complicated balloon occlusion, cumbersome selection of balloon size, etc., and achieve the effect of simple and convenient operation

Pending Publication Date: 2020-03-27
NINGBO SHENGJIEKANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operation of the balloon occlusion method is more complicated, and the selection of the size of the balloon is cumbersome and risky, because each different occlusion area needs to select different sizes of occlusion balloons, and if the size of the balloon is too small, the occlusion effect It is not good, the balloon is too large and it is easy to cause extrusion damage to the tube wall at the occlusion

Method used

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  • Bronchial spraying freezing system
  • Bronchial spraying freezing system
  • Bronchial spraying freezing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] This embodiment combines the attached Figure 3-13 A preferred structure of the baffle plate 3 expanded by the cold source gas sprayed through the spray port 2 will be described.

[0061] Depend on image 3 It can be seen that the spoiler 3 is located in the middle of the spray port 21 and the head end 22. When the spray port 21 is not sprayed with the cold source fluid, it is coated on the surface of the spray head 2. When the spray port 21 sprays the cold source, the cold source fluid is used. The power of the spoiler 3 is blown to the unfolded state.

[0062] 1. If Figure 4-Figure 7 As shown, the spoiler 3 is in the shape of an inner concave S shape, an outer concave S shape, an inner concave arc shape and an outer concave arc shape along the axial section of the vacuum tube. The baffle 3 is S-shaped or arc-shaped along the axial section of the vacuum tube. This shape can automatically adjust the degree of expansion at different sizes of plugs, so that the same b...

Embodiment 2

[0070] refer to Figure 18-Figure 20 , the present embodiment provides three preferred structures of the pushing device in the device pushing and unfolding mode.

[0071] 1. Reference Figure 18 The pushing device includes the outer sheath tube distal end 64, and the outer sheath tube distal end 64 includes a cutout 641 and a head end 642, and the spray port 21 is inside the cutout 641, which will not block the spraying of the cold source. The baffle 3 is directly pushed away with the head end 642 of the outer sheath to realize its expansion, and the baffle 3 will also be brought back when the outer sheath is recovered.

[0072] 2. Reference Figure 19 , the pushing device includes an outer sheath distal end 64 and a support device 31 , the support device includes but not limited to a support rod and a support wire, and the outer sheath distal end 64 is connected to the baffle 3 through the support device 31 . Through the joint action of the distal end 642 of the outer shea...

Embodiment 3

[0075] This embodiment provides a preferred structure in which the outer sheath exists at the distal end of the outer sheath in embodiment 2.

[0076] 1. Reference Figure 21 and Figure 22 , the outer sheath 6 also includes a connection bayonet 63 , and the body 61 of the outer sheath is connected to the distal end 64 of the outer sheath through the connection buckle 63 . The setting of the connection bayonet 63 can realize the detachment of the outer sheath.

[0077] 2. Reference Figure 23 and Figure 24 , the body 61 of the outer sheath tube and the distal end 64 of the outer sheath tube are integrated, and there is no connecting buckle in the middle.

[0078] To sum up, the spoiler is deployed through the push device, and the deployment process is easier to control. The distal end of the outer sheath is provided with an incision corresponding to the nozzle, which will not affect the spray effect. There are reinforcing wires on the spoiler, so that the spoiler has a ...

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Abstract

The invention discloses a bronchial spraying freezing system. The system comprises a pipe body, a spraying head, a flow-choking sheet, and a cold source apparatus, wherein the cold source apparatus, the pipe body, and the spraying head are connected in order, the spraying head comprises a plurality of spraying ports and a head end, the spray ports are circumferentially and uniformly distributed inthe middle of the spraying head, the flow-choking sheet is located between the spraying ports and the head end, and the flow-choking sheet covered on the surface of the spraying head can be unfoldedto realize distal end plugging. The flow-choking sheet is a ring-shaped circumferential flexible material, an axial section along a vacuum pipe is S-shaped or arc-shaped, and an unfolded shape of theflow-choking sheet is formed by a cold source fluid sprayed from the spraying ports, or a pushing apparatus to achieve flow-choking effects. Therefore, the bronchial spraying freezing system is provided with the flow-choking sheet at the distal end of the spraying ports, the distal end plugging is realized, at the same time, self-adaptive adjustment for plugging areas with different sizes can be performed, plugging effects of the plugging areas with different sizes are realized, and thereby a safe and convenient mean for treating airway hyper-responsiveness or chronic bronchitis is provided.

Description

technical field [0001] The invention relates to the field of spray freezing and ablation, in particular to a bronchial spray freezing system. Background technique [0002] Traditional approaches to the existing treatment of airway hyperresponsiveness or chronic bronchitis include the use of systemic or inhaled corticosteroids, anticholinergics, antibiotics, bronchodilators, short-acting / long-acting beta2 receptors that relieve airway smooth muscle Body stimulants, aerosol delivery agents (high concentration saline), oral expectorants such as roflumilast. However, except for roflumilast and PDE-4, the above drugs are not specific for the treatment of COPD, and the above-mentioned drugs have serious side effects. Inhaled corticosteroids can cause thursh (caused by a yeast infection in the mouth), coughing, hoarseness, and systemic corticosteroids can even cause delayed libido, menstrual irregularities, weight gain, and spikes in blood sugar. Side effects of acetylcholine inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/02
CPCA61B18/02A61B2018/00541A61B2018/0212
Inventor 吕世文宋超邢宗江
Owner NINGBO SHENGJIEKANG BIOTECH
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