CN207614179U - A kind of radiotherapy applicating device for curing with expandable stent - Google Patents
A kind of radiotherapy applicating device for curing with expandable stent Download PDFInfo
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- CN207614179U CN207614179U CN201720253949.1U CN201720253949U CN207614179U CN 207614179 U CN207614179 U CN 207614179U CN 201720253949 U CN201720253949 U CN 201720253949U CN 207614179 U CN207614179 U CN 207614179U
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- applicating device
- expandable stent
- conduit
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- radiotherapy
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Abstract
The utility model is related to a kind of radiotherapy applicating device for curing with expandable stent, including applicating device conduit；Applicating device conduit passes through an applicating device casing, the both ends of applicating device conduit to be stretched out from the both ends of applicating device casing, and applicating device conduit shuttles movement in applicating device casing；The expandable stent of ventilating air is equipped between applicating device conduit and the applicating device casing, expandable stent is the elastic support shunk when being stretched；One end of expandable stent connects the front end of the applicating device conduit, and the other end of expandable stent connects the applicating device casing, pulls expandable stent to shrink when the front end of applicating device conduit forward extends out；The utility model has the beneficial effects that：Using the elastic dilatation holder that diameter is collapsible and expands, expandable stent is the reticular structure of negotiable air, can effectively prevent applicating device pipe obstruction bronchus, avoids generation airway obstruction that patient in therapeutic process is caused to suffocate；It can also be applicating device conduit and be maintained at bronchial centre, improve the therapeutic effect of lung's radiotherapy.
Description
Technical field
The utility model belongs to radiotheraphy device more particularly to a kind of radiotherapy applicating device for curing with expandable stent.
Background technology
It when carrying out lung's radiotherapy, is penetrated at present from the nasal cavity of patient to lung using applicating device conduit, it usually needs will
The front end of applicating device conduit is inserted into bronchus, when applicating device conduit is inserted into thinner bronchus, bronchus can be caused to hinder
Plug also has and airway obstruction, atelectasis, the risk of pulmonary edema occurs although the radiotherapy time only has about more than ten minutes.If
Applicating device conduit only enters in thicker bronchus or main bronchus, since applicating device conduit is very thin hose, can paste
In the side of bronchus tube wall, can not ensure to reach dosage distribution appropriate.And in lung's radiotherapy, it generally requires holding and applies source
Device conduit is in bronchial center, can significantly more efficient adjustment Radiotherapy dosimetry, reach the distribution of ideal dosage, to
Improve tumor control rate.
Invention content
The purpose of this utility model is to propose a kind of technical solution of the radiotherapy applicating device for curing with expandable stent, prevents Shi Yuan
Device pipe obstruction bronchus, and applicating device conduit is made to be maintained at the position at bronchus center.
To achieve the goals above, the technical solution of the utility model is：A kind of radiotherapy applicating device for curing with expandable stent,
Including applicating device conduit；The applicating device conduit passes through an applicating device casing, and the both ends of the applicating device conduit are applied from described
The both ends of source device casing are stretched out, and the applicating device conduit shuttles movement in the applicating device casing；In the applicating device conduit
The expandable stent of ventilating air is equipped between the applicating device casing, the expandable stent is the elasticity branch shunk when being stretched
Frame；One end of the expandable stent connects the front end of the applicating device conduit, is applied described in the other end connection of the expandable stent
The front end of source device casing, the applicating device conduit pulls the expandable stent to shrink when forward extending out.
Further, the expandable stent is cylindrical shape elastic web expandable stent, the expandable stent both ends by
Outer diameter is shunk when axial tension.
Further, the expandable stent is nickel alloy silk expandable stent.
Further, the front end of the applicating device conduit is equipped with the bulb being connect with the expandable stent.
Further, the front end of the applicating device casing is equipped with tension guide section, and the applicating device casing is in the stretching
The root of guide section connects the expandable stent.
Further, the outer diameter of the tension guide section is less than the outer diameter of the applicating device casing, in the tension guide
The root of section is equipped with the transition conical surface.
Further, the length of tension guide section is not more than the length of the expandable stent, before the applicating device conduit
The tension guide section is stretched out at end.
Further, the expandable stent is expansion state in nature, and the expandable stent outer diameter is retracted to not
It is contraction state when more than the applicating device sleeve outer；The radiotherapy applicating device for curing with expandable stent is equipped with flexible fastener,
The flexible fastener controls the relative position between the applicating device conduit and applicating device casing, and the expandable stent is made to be maintained at
The expansion state or the contraction state.
Further, the flexible fastener includes cutting ferrule and the core of the card, the front end of the cutting ferrule and the applicating device casing
Rear end is fixedly connected, and the cutting ferrule wall is equipped with U-shaped card slot；The core of the card be sleeved on the outer diameter of the applicating device conduit and with the source of applying
Device conduit is fixedly connected, and the rear end of the applicating device conduit is pierced by the core of the card, and the outer diameter of the core of the card is after the cutting ferrule
Cutting ferrule is stretched at end, is equipped with bayonet lock in the outer diameter of the core of the card, the core of the card drives the applicating device when being moved in the cutting ferrule
Conduit is moved relative to the applicating device casing, and the bayonet lock moves in the U-shaped card slot of the cutting ferrule, when the bayonet lock moves
To the U-shaped card slot both ends when so that the expandable stent is maintained at the expansion state or the contraction state.
Further, the tail portion of the applicating device casing is equipped with lanyard, and the lanyard is equipped with for covering the set for hanging over ear
Ring.
The utility model has the beneficial effects that：Using the elastic dilatation holder that diameter is collapsible and expands, expandable stent is
The reticular structure of negotiable air can effectively prevent applicating device pipe obstruction bronchus, and generation airway obstruction is avoided to cause to treat
Patient suffocates in the process；It can also be applicating device conduit and be maintained at bronchial centre, improve the therapeutic effect of lung's radiotherapy.
The utility model is described in detail with reference to the accompanying drawings and examples.
Description of the drawings
Fig. 1 is the utility model structure chart, and expandable stent is in expansion state；
Fig. 2 is the utility model structure chart, and expandable stent is in contraction state；
Fig. 3 is the utility model expandable stent portion structure enlarged drawing, and expandable stent is in expansion state；
Fig. 4 is the utility model expandable stent portion structure enlarged drawing, and expandable stent is in contraction state；
Fig. 5 is the flexible fastener position enlarged drawing of Fig. 1；
Fig. 6 is the flexible fastener position enlarged drawing of Fig. 2；
Fig. 7 is that the utility model operates with schematic diagram, and expandable stent is in contraction state, applicating device conduit and applicating device
Casing is inserted into lung；
Fig. 8 is that the utility model operates with schematic diagram, and expandable stent is in expansion state, struts bronchus.
Specific implementation mode
Such as Fig. 1 to Fig. 6, a kind of radiotherapy applicating device for curing with expandable stent, including applicating device conduit 10；The applicating device is led
Pipe across an applicating device casing 20, from the both ends of the applicating device casing stretch out, described to apply by the both ends of the applicating device conduit
Source device conduit shuttles movement in the applicating device casing；Stream is equipped between the applicating device conduit and the applicating device casing
The expandable stent 30 of blowing air, the expandable stent are the elastic supports shunk when being stretched；One end of the expandable stent connects
The front end of the applicating device conduit is connect, the other end of the expandable stent connects the applicating device casing, the applicating device conduit
Front end pull when forward extending out the expandable stent to shrink.
The expandable stent is cylindrical shape elastic web expandable stent, and the expandable stent is when both ends are axially stretched
Outer diameter is shunk.
The expandable stent is nickel alloy silk expandable stent.
The front end of the applicating device conduit is equipped with the bulb 11 being connect with the expandable stent.
The front end of the applicating device casing is equipped with tension guide section 21, and the applicating device casing is in the tension guide section
Root connects the expandable stent.
The outside diameter d 1 of the tension guide section is less than the outside diameter d 2 of the applicating device casing, in the root of the tension guide section
Portion is equipped with the transition conical surface 22.
The length of tension guide section is not more than the length of the expandable stent, described in the front end of the applicating device conduit is stretched out
Tension guide section.
The expandable stent is expansion state in nature, as shown in Figure 3；The expandable stent outer diameter is retracted to not
It is contraction state when more than the applicating device sleeve outer, as shown in Figure 4；The radiotherapy applicating device for curing with expandable stent is equipped with
Flexible fastener 40, the flexible fastener control the relative position between the applicating device conduit and applicating device casing, make the expansion
It opens holder and is maintained at the expansion state or the contraction state.
The flexible fastener includes cutting ferrule 41 and the core of the card 42, and the front end of the cutting ferrule and the rear end of the applicating device casing are solid
Fixed connection, the cutting ferrule wall are equipped with U-shaped card slot 43；The core of the card is sleeved on the outer diameter of the applicating device conduit and is led with applicating device
Pipe is fixedly connected, and the rear end of the applicating device conduit is pierced by the core of the card, and the outer diameter of the core of the card is stretched from the rear end of the cutting ferrule
Enter cutting ferrule, is equipped with bayonet lock 44 in the outer diameter of the core of the card, the core of the card drives the applicating device to lead when being moved in the cutting ferrule
Pipe is moved relative to the applicating device casing, and the bayonet lock moves in the U-shaped card slot of the cutting ferrule, when the bayonet lock is moved to
The expandable stent is set to be maintained at the expansion state when both ends of the U-shaped card slot（As shown in Figure 5）Or it is described contraction-like
State（As shown in Figure 6）.
The tail portion of the applicating device casing is equipped with lanyard 50, and the lanyard is equipped with for covering the lantern ring 51 for hanging over ear.
Embodiment one：
Such as Fig. 1 to Fig. 6, a kind of radiotherapy applicating device for curing with expandable stent, including applicating device conduit 10；In radiotherapy, apply
The rear end 12 of source device conduit is connect with afterloader, and seal wire of the front end with radioactive source penetrates applicating device conduit and reach treatment position
It sets.
3=2.5mm of outside diameter d of applicating device conduit, the front end of applicating device conduit are equipped with the bulb 11 of a diameter of 3.2mm.Front end
Bulb applicating device conduit can be made smoothly to pass in and out human body, prevent plowing from human organ.
There are applicating device casing 20,2=4.5mm of outside diameter d of applicating device casing in applicating device catheter jacket.Applicating device casing
Front end is equipped with one section of tension guide section 21, and 1=2.8mm of outside diameter d of tension guide section is less than the outer diameter of applicating device casing, is stretching
The root of guide section is equipped with the transition conical surface 22.
Applicating device conduit passes through applicating device casing, the tension guide section of the bulb of applicating device catheter proximal end from applicating device casing
Front end stretch out, the rear end of applicating device conduit is stretched out from the rear end of applicating device casing.Applicating device conduit can be in applicating device casing
Interior shuttle moves back and forth, and makes both ends telescopic moving except applicating device casing both ends of applicating device conduit.
Expandable stent 30 is equipped between applicating device conduit and the applicating device casing, expandable stent is cylindrical shape elastic network(s)
Shape expandable stent, expandable stent are made of the nickel alloy silk braiding of a diameter of 0.15mm, in its natural state expansion branch
4=8mm of outside diameter d of frame.Expandable stent outer diameter when both ends are axially stretched is shunk, and can restore nature after drawing force removal
State.
The bulb of one end connection applicating device catheter proximal end of expandable stent, the wire of expandable stent are fixed on bulb rear portion
Spherical surface on, avoid the front end of applicating device conduit is hindered to enter internal.The other end of expandable stent connects applicating device casing, expansion
The wire of holder is fixed on the transition conical surface of tension guide section root, avoids hindering the disengaging of applicating device conduit internal.
The length of the tension guide section of applicating device casing is not more than the length of expandable stent, in the nature of expandable stent
Under, it is surrounded as shown in figure 3, tension guide section is expanded holder, the front end of tension guide section is close to before applicating device conduit
End.Since the outer diameter of applicating device conduit is smaller, tension guide section can increase the bearing length to applicating device conduit, avoid Shi Yuan
Device conduit generates bending when stretching expandable stent because rigidity is insufficient.
Expandable stent is expansion state in nature, as shown in Figure 3.It is drawn when forward extending out the front end of applicating device conduit
Dynamic expandable stent is shunk, and is contraction state when expandable stent outer diameter is retracted to no more than applicating device sleeve outer, as shown in Figure 4.
In the present embodiment, in contraction state, net metal silk is in contact expandable stent with the tension guide section of applicating device casing.
The radiotherapy applicating device for curing with expandable stent of the present embodiment is additionally provided with flexible fastener 40, and the fastener that stretches controls applicating device
Relative position between conduit and applicating device casing makes expandable stent be maintained at the expansion state or contraction state.
Flexible fastener includes cutting ferrule 41 and the core of the card 42, and the front end of cutting ferrule is fixedly connected with the rear end of applicating device casing, cutting ferrule
Wall is equipped with U-shaped card slot 43；The core of the card is sleeved on the outer diameter of applicating device conduit and is fixedly connected with applicating device conduit, applicating device conduit
Rear end is pierced by the core of the card.The outer diameter of the core of the card stretches into cutting ferrule from the rear end of cutting ferrule, and bayonet lock 44 is equipped in the outer diameter of the core of the card.The core of the card is in cutting ferrule
Interior movement, bayonet lock move in the U-shaped card slot of cutting ferrule.
Applicating device conduit is pushed to be moved forward from applicating device casing when the core of the card moves axially forward, before applicating device conduit
The bulb at end stretches expandable stent, and when bayonet lock is moved to the front end of U-shaped card slot, expandable stent reaches contraction state, revolves at this time
Turn the core of the card, bayonet lock is made to be caught in the front end of U-shaped card slot, expandable stent is maintained at contraction state（As shown in Figure 6）.
Applicating device conduit is pulled to be moved backward from applicating device casing when the core of the card moves axially rearward, before applicating device conduit
The bulb at end is from the front end of applicating device casing（Actually and the front end of tension guide section）It contracts to recycling, when bayonet lock is moved to U
When the rear end of shape card slot, expandable stent reaches expansion state（That is nature）, the core of the card is rotated at this time, and bayonet lock is made to be caught in U-shaped card
The rear end of slot, expandable stent are maintained at expansion state（As shown in Figure 5）.
It is equipped with annular groove and knurled segment 45 easy to operation in the rear end of the core of the card.It is equipped with ring easy to operation in the front end of cutting ferrule
Slot and knurled segment 46.
The tail portion of applicating device casing is equipped with lanyard 50, and lanyard is equipped with for covering the lantern ring 51 for hanging over ear.
When carrying out lung's radiotherapy, first operates the fastener that stretches and expandable stent is maintained at contraction state, then by applicating device
The bulb of catheter proximal end is inserted into bronchus 63 from the nasal cavity 61 of patient through respiratory tract 62, and the lantern ring of lanyard is hung over to the ear of patient
On pieces 64, as shown in Figure 7.Then the fastener that stretches is operated, so that expandable stent is in expansion state, and strut bronchus.Due to expanding
The reticular structure that holder is negotiable air is opened, bronchus can be prevented to be blocked, patient is avoided pulmonary edema occur.Then source will be applied
The rear end of device conduit connects afterloader, carries out lung's radiotherapy.
Claims (10)
1. a kind of radiotherapy applicating device for curing with expandable stent, including applicating device conduit；It is characterized in that, the applicating device conduit is worn
An applicating device casing is crossed, the both ends of the applicating device conduit are stretched out from the both ends of the applicating device casing, and the applicating device is led
Pipe shuttles movement in the applicating device casing；Ventilating air is equipped between the applicating device conduit and the applicating device casing
Expandable stent, the expandable stent is the elastic support shunk when being stretched；It is applied described in one end connection of the expandable stent
The front end of source device conduit, the other end of the expandable stent connect the applicating device casing, the front end of the applicating device conduit to
The expandable stent is pulled to shrink when preceding stretching.
2. a kind of radiotherapy applicating device for curing with expandable stent according to claim 1, which is characterized in that the expandable stent
It is cylindrical shape elastic web expandable stent, expandable stent outer diameter when both ends are axially stretched is shunk.
3. a kind of radiotherapy applicating device for curing with expandable stent according to claim 1, which is characterized in that the expandable stent
It is nickel alloy silk expandable stent.
4. a kind of radiotherapy applicating device for curing with expandable stent according to claim 1, which is characterized in that the applicating device is led
The front end of pipe is equipped with the bulb being connect with the expandable stent.
5. a kind of radiotherapy applicating device for curing with expandable stent according to claim 1, which is characterized in that the applicating device set
The front end of pipe is equipped with tension guide section, and the applicating device casing connects the expandable stent in the root of the tension guide section.
6. a kind of radiotherapy applicating device for curing with expandable stent according to claim 5, which is characterized in that the tension guide
The outer diameter of section is less than the outer diameter of the applicating device casing, and the transition conical surface is equipped in the root of the tension guide section.
7. a kind of radiotherapy applicating device for curing with expandable stent according to claim 5, which is characterized in that tension guide section
Length is not more than the length of the expandable stent, and the tension guide section is stretched out in the front end of the applicating device conduit.
8. a kind of radiotherapy applicating device for curing with expandable stent according to claim 1, which is characterized in that the expandable stent
It is expansion state in nature, is contraction when the expandable stent outer diameter is retracted to no more than the applicating device sleeve outer
State；The radiotherapy applicating device for curing with expandable stent is equipped with flexible fastener, and the flexible fastener controls the applicating device conduit
Relative position between applicating device casing makes the expandable stent be maintained at the expansion state or the contraction state.
9. a kind of radiotherapy applicating device for curing with expandable stent according to claim 8, which is characterized in that the flexible fastener
Including cutting ferrule and the core of the card, the front end of the cutting ferrule is fixedly connected with the rear end of the applicating device casing, and the cutting ferrule wall is equipped with U-shaped
Card slot；The core of the card is sleeved on the outer diameter of the applicating device conduit and is fixedly connected with applicating device conduit, the applicating device conduit
Rear end be pierced by the core of the card, the outer diameter of the core of the card stretches into cutting ferrule from the rear end of the cutting ferrule, is set in the outer diameter of the core of the card
There are bayonet lock, the core of the card that the applicating device conduit is driven to be moved relative to the applicating device casing when being moved in the cutting ferrule,
The bayonet lock moves in the U-shaped card slot of the cutting ferrule, makes when the bayonet lock is moved to the both ends of the U-shaped card slot described
Expandable stent is maintained at the expansion state or the contraction state.
10. a kind of radiotherapy applicating device for curing with expandable stent according to claim 1, which is characterized in that the applicating device
The tail portion of casing is equipped with lanyard, and the lanyard is equipped with for covering the lantern ring for hanging over ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253949.1U CN207614179U (en) | 2017-03-16 | 2017-03-16 | A kind of radiotherapy applicating device for curing with expandable stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253949.1U CN207614179U (en) | 2017-03-16 | 2017-03-16 | A kind of radiotherapy applicating device for curing with expandable stent |
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| Publication Number | Publication Date |
|---|---|
| CN207614179U true CN207614179U (en) | 2018-07-17 |
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ID=62818388
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720253949.1U Active CN207614179U (en) | 2017-03-16 | 2017-03-16 | A kind of radiotherapy applicating device for curing with expandable stent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823122A (en) * | 2017-03-16 | 2017-06-13 | 中国医学科学院北京协和医院 | A kind of radiotherapy applicating device for curing with expandable stent |
-
2017
- 2017-03-16 CN CN201720253949.1U patent/CN207614179U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823122A (en) * | 2017-03-16 | 2017-06-13 | 中国医学科学院北京协和医院 | A kind of radiotherapy applicating device for curing with expandable stent |
| CN106823122B (en) * | 2017-03-16 | 2023-08-11 | 中国医学科学院北京协和医院 | Radiotherapy source applying device with expansion bracket |
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