CN210541934U - Positioning device for windowing covered stent - Google Patents
Positioning device for windowing covered stent Download PDFInfo
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- CN210541934U CN210541934U CN201921000085.8U CN201921000085U CN210541934U CN 210541934 U CN210541934 U CN 210541934U CN 201921000085 U CN201921000085 U CN 201921000085U CN 210541934 U CN210541934 U CN 210541934U
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- balloon catheter
- catheter device
- air bag
- needle
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Abstract
The utility model relates to a positioner for being directed at tectorial membrane support carries out windowing, sacculus pipe device including flexible deformation, sacculus pipe device's the pipe wall outside is provided with fixed gasbag, one side that sacculus pipe device's outside is located fixed gasbag and is close to sacculus pipe device operation end is provided with the support gasbag, support gasbag and sacculus pipe device fixed link to each other and be located one side of sacculus pipe device, inside being provided with of sacculus pipe device is to fixed gasbag and the inside water filling passageway that fills water of support gasbag, still be provided with the needle threading passageway in the sacculus pipe device, the play needle mouth of needle threading passageway is located one side that sacculus pipe device deviates from the support gasbag and sets up with the support gasbag relatively, the needle inlet of needle threading passageway is located the terminal surface of sacculus pipe device operation end. The utility model discloses having at internal windowing, greatly having simplified the step of windowing, having reduceed the requirement to the technique and the dependency of experience, reduced the operation degree of difficulty and risk.
Description
Technical Field
The utility model belongs to the technical field of medical instrument's technique and specifically relates to a positioner that is used for windowing to tectorial membrane support is related to.
Background
Aortic aneurysms are the most common aneurysms and are a serious life-threatening disease of the large blood vessels. In recent years, the incidence of aortic aneurysm has also increased year by year with the increase in incidence of hypertension and arteriosclerosis and the aging population, and the incidence has become one of the common causes of sudden death of the middle-aged and elderly people. The main cause of the disease is degenerative change in the middle aorta, which leads to weakening of the aortic wall and globoid dilatation of the aortic lumen.
The application of the stent graft to the treatment of aortic diseases is a great progress of aortic disease treatment in recent years, and indications of the stent graft include aortic dissection, aortic true aneurysm, aortic pseudoaneurysm, aortic penetrating ulcer and the like. This technique greatly reduces surgical trauma and the patient recovers more quickly. However, the current technique has the disadvantage that when the main branch of the aorta is affected by the lesion, the opening of the branch is closed while isolating the lesion.
The technology related to the retention of the branch artery is that a stent specially customized according to the morphological characteristics of the blood vessel of a patient is designed and manufactured when the stent is delivered from a factory, the period is long, about three months is probably needed, the operation difficulty is high, and the practicability is poor; the other is that the covered stent is windowed in vitro in the operation, the covered stent needs to be tightly combined with CT imaging before the operation, errors are easy to occur, the covered stent needs to be sent back into a stent guide sheath after the windowing, the covered stent is difficult to be reloaded due to the addition of a marking metal ring and the like, the possibility of damaging the stent occurs after the covered stent is forcibly sent back, the possibility of fracture and accidental release of the stent occurs when the covered stent enters a human body, disastrous results are caused, meanwhile, the operation in the operation needs good three-dimensional observation, poor involution is very likely to occur, and the danger of branch vessel occlusion and organ loss due to the fact that the branch vessel cannot be involuted occurs is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a positioner for being directed at tectorial membrane support windows, it has at internal accurate positioning, the accuracy is windowed, has greatly simplified the step of windowing, has reduceed the dependence to the requirement of technique and experience, has reduced the operation degree of difficulty and risk.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a positioner for being directed at tectorial membrane support carries out windowing, sacculus pipe device including flexible deformation, the end is inserted to the position, the pipe wall outside of sacculus pipe device is provided with encloses the fixed gasbag in inside with sacculus pipe device, one side that the outside of sacculus pipe device is located fixed gasbag and is close to sacculus pipe device operation end is provided with the support gasbag, support gasbag and sacculus pipe device fixed link to each other and be located one side of sacculus pipe device, inside being provided with of sacculus pipe device is fixed gasbag and is supported the inside water filling passageway that fills water of gasbag, still be provided with the needle passageway in the sacculus pipe device, the play needle mouth of needle passageway is located one side that sacculus pipe device deviates from the support gasbag and sets up with supporting the gasbag relatively, the needle inlet of needle passageway is located the terminal surface of sacculus pipe device operation end.
By adopting the technical proposal, the inserting end of the balloon catheter device is extended into the branch vessel, and the fixed balloon on the balloon catheter device is positioned in the branch vessel, meanwhile, the supporting air bag is positioned at the communication position of the main blood vessel and the branch blood vessel and close to the feeding side of the balloon catheter device, then a covered stent is implanted into the main vessel, after the covered stent is implanted, the interiors of the fixed air bag and the supporting air bag are filled with water, so that the fixed air bag is abutted against the vessel wall of the branch vessel, the position of the balloon catheter device is fixed and can be used as a mark of the position of a branch blood vessel, the supporting air bag is inflated with water to enable the needle outlet of the balloon catheter device to be close to the covered stent, finally, a puncture needle is inserted into the needle penetrating channel of the balloon catheter device, and the puncture needle extends out of the needle outlet of the balloon catheter device to puncture and open a hole of the covered stent.
The utility model discloses further set up to: the inside of the balloon catheter device is provided with a metal guide wire perforation.
By adopting the technical scheme, when the balloon catheter device is sent into the blood vessel, the metal guide wire can be placed in the blood vessel in advance, and the balloon catheter device is sleeved on the metal guide wire, so that the balloon catheter device can be accurately sent to the specified position in the blood vessel under the auxiliary guiding of the metal guide wire.
The utility model discloses further set up to: the operating end of the balloon catheter device is provided with a threaded connection joint which is used for sleeving the operating end of the balloon catheter device inside, the threaded connection joint is made of hard materials, and a screw cap is connected to the threaded connection joint in a threaded manner.
Through adopting above-mentioned technical scheme, be convenient for insert the inside of sacculus pipe device with the metal seal wire, thereby seal the metal seal wire perforation through rotating the cap to avoid bleeding at the metal seal wire perforation department in the in-process of operation.
The utility model discloses further set up to: the two water filling channels are respectively communicated with the interiors of the fixed air bag and the supporting air bag.
Through adopting above-mentioned technical scheme, can fill water to fixed gasbag and support gasbag respectively as required.
The utility model discloses further set up to: the two water filling channels comprise a first channel and a second channel which are arranged inside the balloon catheter device, a first input pipe and a second input pipe which are respectively communicated with the first channel and the second channel are arranged outside the operation end of the balloon catheter device, a threaded connection joint which is used for sleeving and fixing the first input pipe and the second input pipe inside is arranged outside one end, far away from the balloon catheter device, of the first input pipe and the second input pipe, and a screw cap is connected to the threaded connection joint in a threaded manner.
Through adopting above-mentioned technical scheme, through being connected to the screwed connection joint with the spiral cap to will fill the water end of water passageway and seal.
The utility model discloses further set up to: the needle threading channel comprises an inlet section and an outlet section, wherein the inlet section is arranged along the axial direction of the balloon catheter device, the outlet section is bent to the direction away from one side where the supporting air bag is located, and the joint of the inlet section and the outlet section is arc-shaped.
By adopting the technical scheme, the puncture needle can conveniently penetrate through the needle penetrating channel.
To sum up, the utility model discloses a beneficial technological effect does:
1. the insertion end of the balloon catheter device is inserted into a branch blood vessel, a fixed air bag on the balloon catheter device is positioned in the branch blood vessel, a supporting air bag is positioned at the communication position of a main blood vessel and the branch blood vessel and is close to one side where the balloon catheter device is fed, a covered stent is implanted into the main blood vessel, after the covered stent is implanted, water is filled into the fixed air bag, the fixed air bag is abutted against the vascular wall of the branch blood vessel, the position of the balloon catheter device is fixed and can be used as a mark of the position of the branch blood vessel, the supporting air bag is inflated with water, a needle outlet of the balloon catheter device is abutted against the covered stent, finally a puncture needle is inserted into a needle penetrating channel of the balloon catheter device, and the puncture needle extends out through the needle outlet of the balloon catheter device to puncture a puncture hole and open a window on a covered membrane of the covered stent;
2. through setting up two and being the inside water filling channel that fills of fixed gasbag and support gasbag respectively, can fill water to fixed gasbag and support gasbag respectively as required.
Drawings
FIG. 1 is a schematic view of the positioning device;
FIG. 2 is an axial cross-sectional view of the positioning device;
fig. 3 is a transverse cross-sectional view of a balloon catheter device;
FIG. 4 is a partial schematic structural view of a balloon catheter device;
fig. 5 is a schematic view of the positioning device in use.
In the drawings, 1, a balloon catheter device; 11. perforating a metal guide wire; 12. a first channel; 13. a second channel; 14. a communicating hole; 15. a first input pipe; 16. a second input pipe; 17. a needle threading channel; 171. entering a section; 172. a delivery section; 18. a needle threading connector; 2. fixing the air bag; 3. a support airbag; 4. a threaded connection joint; 5. screwing the cap; 6. covering a membrane stent; 7. a major blood vessel; 8. and (4) branching blood vessels.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a positioner who windows to tectorial membrane support, including flexible deformation's sacculus pipe device 1, the one end of the length direction of sacculus pipe device 1 is for inserting the end, and the other end is for supplying the operation end of doctor's handheld operation.
Referring to fig. 2 and 3, a metal guide wire perforation 11 is provided on the central axis of the balloon catheter device 1. A metal guidewire perforation 11 extends through the balloon catheter device 1. The metal guide wire perforation 11 enables a medical metal guide wire to pass therethrough. When the balloon catheter device 1 is delivered into a blood vessel, a metal guide wire is firstly placed into the blood vessel, the balloon catheter device 1 is sleeved on the metal guide wire, the insertion end of the balloon catheter device 1 is delivered into the blood vessel, and the balloon catheter device 1 is accurately delivered to a specified position in the blood vessel through the guiding action of the metal guide wire.
The balloon catheter device 1 is positioned at the insertion end of the balloon catheter device 1, a water-filled and expanded fixed balloon 2 is fixed on the outer portion of the wall of the balloon catheter device 1, the fixed balloon 2 is annular and surrounds the balloon catheter device 1, and a water-filled space for filling water is formed between the fixed balloon 2 and the balloon catheter device 1. On the balloon catheter device 1, a water-filled and expanded support balloon 3 is fixed on one side of the fixed balloon 2 facing the operation end of the balloon catheter device 1, wherein the support balloon 3 is fixed on one side of the balloon catheter device 1, and a water-filled space for filling water is formed between the support balloon 3 and the balloon catheter device 1. A first channel 12 and a second channel 13 which are respectively communicated with the water filling space between the fixed air bag 2 and the air bag conduit device 1 and the water filling space between the supporting air bag 3 and the air bag conduit device 1 are arranged in the air bag conduit device 1, and the water filling space between the first channel 12 and the fixed air bag 2 and the air bag conduit device 1 and the water filling space between the second channel 13 and the supporting air bag 3 and the air bag conduit device 1 are respectively communicated through a plurality of communicating holes 14 which are arranged on the tube wall of the air bag conduit device 1.
Referring to fig. 1 and 2, at the operation end of the balloon catheter device 1, a first input tube 15 and a second input tube 16 are provided on the side wall of the balloon catheter device 1, which are respectively communicated with the first channel 12 and the second channel 13 in the balloon catheter device 1, and the first input tube 15 and the second input tube 16 are respectively connected with the balloon catheter device 1 integrally. The first input tube 15 and the second input tube 16 are spaced apart from the end surface of the operation end of the balloon catheter device 1. The interiors of the first and second passages 12 and 13 are filled with water through the first and second input pipes 15 and 16, thereby inflating the fixing bladder 2 and the supporting bladder 3 with water.
Referring to fig. 2 and 3, a needle threading channel 17 is further disposed inside the balloon catheter device 1, a needle inlet of the needle threading channel 17 is located at an end face of the operation end of the balloon catheter device 1, and a needle outlet of the needle threading channel 17 is located on a side wall of the balloon catheter device 1 facing away from the support balloon 3 and is located at a position opposite to the support balloon 3. A needle threading joint 18 which is integrally formed with the balloon catheter device 1 and communicates with the inside of the needle threading passage 17 is provided at the insertion end of the balloon catheter device 1. The puncture needle is inserted into the needle insertion port 18, whereby the puncture needle is inserted into the needle insertion passage 17 of the balloon catheter device 1. The puncture needle passes through the needle threading connector 18 and then out of the needle threading channel 17, and finally out of the needle outlet of the needle threading channel 17.
Referring to fig. 2, the needle passing passage 17 includes an entrance section 171 provided along the axial direction of the balloon catheter device 1, and one end of the entrance section 171 near the operation end of the balloon catheter device 1 communicates with the end face of the operation end of the balloon catheter device 1. One end of the entering section 171, which is far away from the operating end of the balloon catheter device 1, is provided with a sending-out section 172, which is bent towards one side of the balloon catheter device 1, which is far away from the supporting balloon 3, and is exposed out of the side wall of the balloon catheter device 1, wherein the sending-out section 172 is communicated with the inside of the entering section 171, and the connecting part of the entering section 171 and the sending-out section 172 is arc-shaped. The end of the inlet section 171 far away from the outlet section 172 is the needle inlet of the needle threading channel 17, and the end of the outlet section 172 far away from the inlet section 171 is the needle outlet of the needle threading channel 17.
Referring to fig. 1 and 2, a threaded connection joint 4 which is sleeved outside the first input tube 15, the second input tube 16, the needle threading joint 18 and the operation end of the balloon catheter device 1 is respectively arranged at one end of the first input tube 15 and the second input tube 16 which are far away from the balloon catheter device 1, one end of the needle threading joint 18 which is far away from the balloon catheter device 1 and the operation end of the balloon catheter device 1, wherein the threaded connection joint 4 is made of a hard material. The threaded connection joint 4 is fixedly bonded or heat-sealed with the first input tube 15, the second input tube 16, the needle threading joint 18 and the balloon catheter device 1.
A screw cap 5 is screwed on the screw joint 4, and the input ends of the first input tube 15 and the second input tube 16, the insertion end of the needle threading connector 18 and the tip of the operation end of the balloon catheter device 1 are closed by connecting the screw cap 5 to the screw joint 4.
The implementation principle of the embodiment is as follows: referring to fig. 1 and 5, firstly, a metal guide wire is inserted into a blood vessel, a balloon catheter device 1 is inserted into a main blood vessel 7 along the metal guide wire, an insertion end of the balloon catheter device 1 is inserted into a branch blood vessel 8 communicated with the main blood vessel 7, after the insertion end of the balloon catheter device 1 is inserted into the branch blood vessel 8, a fixing air bag 2 on the balloon catheter device 1 is ensured to be inserted into the branch blood vessel 8, a supporting air bag 3 on the balloon catheter device 1 is positioned inside the main blood vessel 7 and at a communication position of the main blood vessel 7 and the branch blood vessel 8, and a side where the supporting air bag 3 is positioned faces a side where the branch blood vessel 8 is positioned, so that a needle outlet of a needle passing channel 17 in the balloon catheter device 1 is away from the side of the branch blood vessel 8.
The stent graft 6 is implanted into the main vessel 7, and after the stent graft 6 is placed, the inside of the fixed balloon 2 is filled with water through the first input tube 15, so that the stent graft is expanded to abut against the vessel wall of the branch vessel 8. The interior of the support airbag 3 is filled with water through the second inlet pipe 16, and the support airbag 3 is inflated. When the supporting air bag 3 is inflated by water, the needle outlet of the needle penetrating channel 17 of the balloon catheter device 1 approaches towards the covered stent 6, finally, a puncture needle is inserted into the needle penetrating channel 17, the puncture needle extends out of the needle outlet of the needle penetrating channel 17, so that the covered membrane of the covered stent 6 is punctured and windowed, and finally, the water in the fixing air bag 2 and the supporting air bag 3 is discharged, so that the fixing air bag 2 and the supporting air bag 3 are contracted.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. A positioning device for fenestration of a stent graft, comprising a flexibly deformable balloon catheter device (1), characterized by: the needle threading device is characterized in that the needle threading device is positioned at the insertion end of the balloon catheter device (1), a fixed air bag (2) which encloses the balloon catheter device (1) inside is arranged on the outer side of the tube wall of the balloon catheter device (1), a supporting air bag (3) is arranged on one side, close to the operation end of the balloon catheter device (1), of the fixed air bag (2) outside the balloon catheter device (1), the supporting air bag (3) is fixedly connected with the balloon catheter device (1) and is positioned on one side of the balloon catheter device (1), a water filling channel for filling the inside of the fixed air bag (2) and the supporting air bag (3) is arranged inside the balloon catheter device (1), a needle threading channel (17) is further arranged inside the balloon catheter device (1), a needle outlet of the needle threading channel (17) is positioned on one side, away from the supporting air bag (3), of the balloon catheter device (1) and is arranged opposite to the, the needle inlet of the needle threading channel (17) is positioned on the end surface of the operation end of the balloon catheter device (1).
2. The positioning device for windowing a stent graft as recited in claim 1, wherein: a metal guide wire perforation (11) is arranged in the balloon catheter device (1).
3. A positioning device for fenestrating a stent graft as defined in claim 2, wherein: the operation end of the balloon catheter device (1) is provided with a threaded connection joint (4) which is used for sleeving the operation end of the balloon catheter device (1) inside, and a screw cap (5) is connected to the threaded connection joint (4) in a threaded manner.
4. The positioning device for windowing a stent graft as recited in claim 1, wherein: the two water filling channels are respectively communicated with the interiors of the fixed air bag (2) and the supporting air bag (3).
5. The positioning device for windowing a stent graft as recited in claim 4, wherein: two water filling channels comprise a first channel (12) and a second channel (13) which are arranged inside the balloon catheter device (1), a first input pipe (15) and a second input pipe (16) which are respectively communicated with the first channel (12) and the second channel (13) are arranged outside an operation end of the balloon catheter device (1), a threaded connection joint (4) which is respectively sleeved and fixed inside the first input pipe (15) and the second input pipe (16) is arranged outside one end of the first input pipe (15) and the second input pipe (16) far away from the balloon catheter device (1), and a screw cap (5) is connected to the threaded connection joint (4) in a threaded manner.
6. The positioning device for windowing a stent graft as recited in claim 1, wherein: the needle threading channel (17) comprises an inlet section (171) and an outlet section (172), wherein the inlet section (171) is arranged along the axial direction of the balloon catheter device (1), the outlet section (172) is bent to the direction away from one side where the supporting air bag (3) is located, and the joint of the inlet section (171) and the outlet section (172) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000085.8U CN210541934U (en) | 2019-06-28 | 2019-06-28 | Positioning device for windowing covered stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000085.8U CN210541934U (en) | 2019-06-28 | 2019-06-28 | Positioning device for windowing covered stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210541934U true CN210541934U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921000085.8U Active CN210541934U (en) | 2019-06-28 | 2019-06-28 | Positioning device for windowing covered stent |
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| CN (1) | CN210541934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169844A (en) * | 2019-06-28 | 2019-08-27 | 北京大学第三医院（北京大学第三临床医学院） | A kind of positioning device for opening a window to overlay film frame |
-
2019
- 2019-06-28 CN CN201921000085.8U patent/CN210541934U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169844A (en) * | 2019-06-28 | 2019-08-27 | 北京大学第三医院（北京大学第三临床医学院） | A kind of positioning device for opening a window to overlay film frame |
| CN110169844B (en) * | 2019-06-28 | 2024-05-28 | 北京大学第三医院（北京大学第三临床医学院） | Positioning device for windowing film covered bracket |
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