CN210697901U - Positioning windowing device for covered stent - Google Patents
Positioning windowing device for covered stent Download PDFInfo
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- CN210697901U CN210697901U CN201921000086.2U CN201921000086U CN210697901U CN 210697901 U CN210697901 U CN 210697901U CN 201921000086 U CN201921000086 U CN 201921000086U CN 210697901 U CN210697901 U CN 210697901U
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- needle
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- catheter device
- balloon catheter
- sacculus
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Abstract
The utility model relates to a tectorial membrane support's location windowing facility, sacculus pipe device and pjncture needle including flexible deformation, the inside of sacculus pipe device is provided with the needle threading passageway that supplies the pjncture needle to pass, and the needle inlet of needle threading passageway is located sacculus pipe device's operation end, and the play needle mouth of needle threading passageway is located sacculus pipe device's lateral wall, and the outside of sacculus pipe device is located the limit structure who is provided with the restriction pjncture needle all around from a needle mouth extending direction of going out of needle mouth. The utility model has the characteristics of at internal accurate positioning, the accurate step of windowing has greatly been simplified, has reduceed the requirement to the technique and the dependency of experience, has reduced the operation degree of difficulty and risk.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a tectorial membrane support's location windowing facility 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 in the treatment of aortic diseases in recent years, and indications of the stent graft include aortic true aneurysm, aortic pseudoaneurysm, aortic dissection, 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, the covered stent needs to be closely combined with CT imaging before operation, errors easily occur, the covered stent needs to be sent back into a stent guide sheath after windowing, reloading is difficult due to the addition of a marking metal ring and the like, the stent is possibly damaged after forced back sending, and then the covered stent enters a human body to be broken and accidentally released, so that disastrous results are caused, meanwhile, good three-dimensional observation is needed for operation in the operation, poor involution is extremely likely to occur, and further the danger that branch vessels cannot be involuted, so that the occlusion of the branch vessels and the loss of organs are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tectorial membrane support's location windowing facility, it has in vivo accurate positioning, the accurate characteristics of windowing, has greatly simplified the step of windowing, has reduceed the dependency 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 tectorial membrane support's location windowing facility, includes flexible deformation's sacculus pipe device and pjncture needle, and the inside of sacculus pipe device is provided with the needle passageway that wears that supplies the pjncture needle to pass, and the needle inlet of wearing the needle passageway is located sacculus pipe device's operation end, and the needle outlet of wearing the needle passageway is located sacculus pipe device's lateral wall, and the outside of sacculus pipe device is located the needle outlet and is provided with the limit structure who restricts the pjncture needle from needle outlet extending direction all around.
By adopting the technical scheme, the insertion end of the balloon catheter device is inserted into a blood vessel, the needle outlet of the needle penetrating channel of the balloon catheter device is opposite to the position of a branch blood vessel, the puncture needle is inserted into the needle penetrating channel and extends out of the needle outlet, the puncture needle penetrating through the needle outlet moves towards the branch blood vessel through the guide of the limiting structure, and then the covered stent positioned between the main blood vessel and the branch blood vessel is punctured, so that the covered stent is windowed.
The utility model discloses further set up to: the limiting structure comprises a first balloon, a second balloon and a third balloon which are sequentially wrapped outside the balloon catheter device, the first balloon is positioned on one side of a needle outlet close to an insertion end of the balloon catheter device, the second balloon is positioned on one side of the needle outlet close to an operation end of the balloon catheter device, the second balloon is positioned on the balloon catheter device at a position opposite to the needle outlet, an avoidance opening is arranged at a position opposite to the needle outlet along the axial direction of the balloon catheter device, two ends of the avoidance opening are respectively connected with the first balloon and the third balloon, and the avoidance opening of the first balloon and the second balloon and the third balloon form a guide channel; the balloon catheter device is internally provided with three water filling channels which are respectively communicated with the interiors of the first balloon, the second balloon and the third balloon, the operating end of the balloon catheter device is provided with a water injection joint which is respectively communicated with the interiors of the water filling channels, and one end, far away from the balloon catheter device, of the water injection joint is provided with a plugging piece which plugs the water injection joint.
By adopting the technical scheme, when the balloon catheter device is sent into the blood vessel, water is respectively injected into the first balloon, the second balloon and the third balloon to enable the first balloon, the second balloon and the third balloon to be expanded so as to be abutted against the covered stent, a guide channel is formed among the first balloon, the second balloon and the third balloon, and the puncture needle is abutted against the covered stent covering the opening part of the branch blood vessel through the guide channel so as to puncture the covered membrane of the covered stent.
The utility model discloses further set up to: the balloon catheter device is internally provided with a guide wire perforation.
By adopting the technical scheme, the metal guide wire is implanted into the blood vessel in advance, and the guide wire can be used for guiding, so that the insertion end of the balloon catheter device can be accurately conveyed to the specified position of the blood vessel.
The utility model discloses further set up to: the outside of the operation end of the balloon catheter device is provided with a threaded connecting sleeve made of hard materials, and the threaded connecting sleeve is in threaded connection with a screw cap.
By adopting the technical scheme, the operation end of the balloon catheter device is sealed by screwing the cap.
The utility model discloses further set up to: the operation end of the balloon catheter device is provided with a needle threading connector communicated with the needle threading channel, and one end of an inner hole of the needle threading connector, which is far away from the balloon catheter device, is a conical opening.
By adopting the technical scheme, the puncture needle can be conveniently inserted into the puncture needle joint so as to be sent into the puncture needle channel of the balloon catheter device.
The utility model discloses further set up to: the needle threading channel comprises a penetrating section and a leading-out section which inclines towards the outer side direction of the balloon catheter device along the axial direction of the balloon catheter device, and the leading-out section is communicated with the penetrating section through an arc-shaped channel.
By adopting the technical scheme, the puncture needle is guided through the arc-shaped channel, so that the puncture needle can easily enter the guiding-out section of the puncture needle channel.
The utility model discloses further set up to: the first balloon, the second balloon and the third balloon are fixedly bonded with the balloon catheter device.
Through adopting above-mentioned technical scheme, be convenient for fix first sacculus, second sacculus and third sacculus on sacculus pipe device.
To sum up, the utility model discloses a beneficial technological effect does:
1. inserting the insertion end of the balloon catheter device into a blood vessel, enabling a needle outlet of a needle penetrating channel of the balloon catheter device to be opposite to a branch blood vessel, inserting a puncture needle into the needle penetrating channel, enabling the puncture needle to extend out of the needle outlet, enabling the puncture needle penetrating through the needle outlet to move towards the branch blood vessel through the guide of a limiting structure, and then puncturing a covered stent positioned between a main blood vessel and the branch blood vessel, and windowing the covered stent;
2. by providing the metal guide wire in the balloon catheter device, the balloon catheter device can be easily fed into the blood vessel when the balloon catheter device is fed into the blood vessel.
Drawings
FIG. 1 is a schematic view of a positioning and windowing facility;
fig. 2 is a longitudinal sectional view of a balloon catheter device;
fig. 3 is a transverse cross-sectional view of a balloon catheter device.
In the drawings, 1, a balloon catheter device; 11. a needle threading channel; 111. a penetration section; 112. a lead-out segment; 113. an arc-shaped channel; 12. a water filling channel; 13. perforating a guide wire; 2. puncturing needle; 3. a needle threading connector; 4. a first balloon; 5. a second balloon; 51. avoiding the opening; 6. a third balloon; 7. a water injection joint; 8. screwing the cap; 9. a threaded connecting sleeve.
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 tectorial membrane support's location windowing facility, including flexible deformation's sacculus pipe device 1 and pjncture needle 2, the one end of the length direction of sacculus pipe device 1 is inserted end of sacculus pipe device 1, and the other end is sacculus pipe device 1's operation end.
Referring to fig. 1 and 2, a needle threading channel 11 is provided inside the balloon catheter device 1, a needle inlet of the needle threading channel 11 is located on an end face of an operation end of the balloon catheter device 1, and a needle outlet of the needle threading channel 11 is located on a side wall of the balloon catheter device 1. The bore diameter of the needle passage 11 is larger than the diameter of the puncture needle 2 so that the puncture needle 2 can be inserted into the needle passage 11.
Referring to fig. 2, the needle threading passage 11 includes a threading section 111 provided along the axial direction of the balloon catheter device 1 and a leading-out section 112 provided obliquely to the outer direction of the balloon catheter device 1, and the leading-out section 112 communicates with the inside of the threading section 111 through an arc-shaped passage 113. The angle formed between the leading-out section 112 and the penetrating section 111 is an obtuse angle. One end of the leading-out section 112 far away from the penetrating section 111 is a needle outlet of the needle threading channel 11, and one end of the penetrating section 111 far away from the leading-out section 112 is a needle inlet of the needle threading channel 11.
A needle threading connector 3 communicated with the interior of the needle threading channel 11 is arranged at the operation end of the balloon catheter device 1, and the needle threading connector 3 and the balloon catheter device 1 are integrally formed. The inner hole of the end of the needle threading head 3 away from the balloon catheter device 1 is tapered so that the puncture needle 2 can be easily inserted into the needle threading head 3 when the puncture needle 2 is inserted into the needle threading head 3.
Referring to fig. 1 and 3, the first balloon 4, the second balloon 5, and the third balloon 6 are disposed in this order from the insertion end of the balloon catheter device 1 to the operation end of the balloon catheter device 1 outside the balloon catheter device 1, and the first balloon 4, the second balloon 5, and the third balloon 6 are wrapped around and fixed to the outside of the balloon catheter device 1. The first balloon 4, the second balloon 5 and the third balloon 6 are fixedly connected with the balloon catheter device 1 in a sticking way.
The first balloon 4 is positioned at one side of the needle outlet of the needle threading channel 11 close to the insertion end of the balloon catheter device 1; the third balloon 6 is positioned at one side of the needle outlet of the needle threading channel 11 close to the operation end of the balloon catheter device 1; the second balloon 5 is located on the balloon catheter device 1 at a position opposite to the needle outlet of the needle passing channel 11. An avoidance opening 51 is arranged on the second balloon 5 at a position where the second balloon 5 is opposite to the needle outlet of the needle threading channel 11, and the side walls on two sides of the avoidance opening 51 are respectively positioned on two sides of the needle outlet of the needle threading channel 11. The escape opening 51 communicates with an insertion end of the second balloon 5 toward the balloon catheter device 1 and an end face of the second balloon 5 toward the operation end of the balloon catheter device 1, respectively. A guide channel for the puncture needle 2 to extend out of the needle outlet of the needle passing channel 11 is formed between the first balloon 4 and the escape opening 51 and the third balloon 6. The side walls on both sides of the avoidance opening 51 and the side of the first balloon facing the needle outlet of the needle threading channel 11 and the side of the third balloon 6 facing the needle outlet of the needle threading channel 11 are in a tangential state with the needle outlet of the needle threading channel 11.
Referring to fig. 3, three water filling channels 12 communicating with the inside of the first balloon 4, the second balloon 5, and the third balloon 6 are provided inside the balloon catheter device 1. Referring to fig. 1, a water injection joint 7 is provided at the operation end of the balloon catheter device 1 and is respectively communicated with the interiors of the three water filling channels 12, and the water injection joint 7 is integrally connected with the balloon catheter device 1. At the one end that the water injection connects 7 and keeps away from sacculus pipe device 1, the outside of water injection connects 7 is provided with the external screw thread, and threaded connection has screw cap 8 on the external screw thread, thereby will fill water and connect the one end of keeping away from sacculus pipe device 1 and seal through screw cap 8.
Referring to fig. 2 and 3, a guide wire insertion hole 13 is provided on the central axis of the balloon catheter device 1, and the guide wire insertion hole 13 penetrates the balloon catheter device 1. The guide wire perforation 13 enables a medical metal guide wire to pass therethrough. When the balloon catheter device 1 is to be introduced into a blood vessel, a metal guide wire is first implanted into the blood vessel, the balloon catheter device 1 is fitted over the metal guide wire and the insertion end of the balloon catheter device 1 is inserted into the blood vessel, and the insertion end of the balloon catheter device 1 is ready to be inserted into a predetermined position in the blood vessel by the guiding action of the metal guide wire.
The outside of the operation end of the balloon catheter device 1 is provided with a thread connecting sleeve 9 made of hard materials, the thread connecting sleeve 9 is fixed outside the balloon catheter device 1, and the outer side surface of the thread connecting sleeve 9 is provided with external threads. The screw cap 8 is connected with the screw connecting sleeve 9 through screw threads.
The implementation principle of the embodiment is as follows: after the stent graft is implanted into the main blood vessel, the balloon catheter device 1 is extended into the blood vessel along a metal guide wire, the needle outlet of the needle insertion channel 11 of the balloon catheter device 1 is opposite to the position of the branch blood vessel, the interiors of the first balloon 4, the second balloon 5 and the third balloon 6 are filled with water through the water injection joint 7, so that the first balloon 4, the second balloon 5 and the third balloon 6 are inflated to be abutted against the inner side surface of the stent graft, finally, the puncture needle 2 is inserted into the needle insertion joint 3, so that the puncture needle 2 sequentially passes through the needle insertion joint 3 and the needle insertion channel 11 in the balloon catheter device 1, and finally, the puncture needle extends out of the needle outlet of the needle insertion channel 11. The puncture needle 2 extends out of a needle outlet of the needle passing channel 11 and moves to the coating of the stent graft through a guide channel surrounded by the avoidance opening 51 of the first balloon 4, the second balloon 5 and the third balloon 6, so as to puncture the coating on the stent graft, take out the puncture needle, change in a metal guide wire, enter a branch blood vessel through a coating perforation, retain the metal guide wire, then discharge water in the first balloon 4, the second balloon 5 and the third balloon 6, and draw the balloon catheter device 1 out of the blood vessel.
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 (7)
1. The utility model provides a tectorial membrane support's location windowing facility, includes flexible balloon catheter device (1) and pjncture needle (2), its characterized in that: the utility model discloses a balloon catheter device, including sacculus pipe device (1), the inside of sacculus pipe device (1) is provided with and supplies puncture needle passageway (11) that pjncture needle (2) passed, the needle inlet of needle passageway (11) is located the operation end of sacculus pipe device (1), the play needle mouth of needle passageway (11) is located the lateral wall of sacculus pipe device (1), the outside of sacculus pipe device (1) is located to be provided with around going out the needle mouth and restricts pjncture needle (2) and stretch out the limit structure of direction from going out the needle mouth.
2. The device of claim 1, wherein: the limiting structure comprises a first balloon (4), a second balloon (5) and a third balloon (6) which are sequentially wrapped outside the balloon catheter device (1), the first sacculus (4) is positioned at one side of the needle outlet close to the insertion end of the sacculus catheter device (1), the second sacculus (5) is positioned at one side of the needle outlet close to the operation end of the sacculus catheter device (1), the second balloon (5) is positioned on the balloon catheter device (1) at a position opposite to the needle outlet, an avoidance opening (51) arranged along the axial direction of the balloon catheter device (1) is arranged at the position of the second balloon (5) opposite to the needle outlet, two ends of the avoiding opening (51) are respectively connected with the first sacculus (4) and the third sacculus (6), the avoidance opening (51) of the first balloon (4), the second balloon (5) and the third balloon (6) form a guide channel; the balloon catheter device is characterized in that three water filling channels (12) communicated with the inside of a first balloon (4), a second balloon (5) and a third balloon (6) are arranged inside the balloon catheter device (1), three water injection joints (7) communicated with the inside of the water filling channels (12) are arranged at the operation end of the balloon catheter device (1), and a sealing piece for sealing the water injection joints (7) is arranged at one end, far away from the balloon catheter device (1), of the water injection joints (7).
3. The device of claim 1, wherein: a guide wire perforation (13) is arranged inside the balloon catheter device (1).
4. The device of claim 3, wherein: the outside of the operation end of the balloon catheter device (1) is provided with a threaded connecting sleeve (9) made of hard materials, and a screw cap (8) is connected to the threaded connecting sleeve (9) in a threaded manner.
5. The device of claim 1, wherein: the operation end of the balloon catheter device (1) is provided with a needle threading connector (3) communicated with the needle threading channel (11), and one end, away from the balloon catheter device (1), of an inner hole of the needle threading connector (3) is a conical opening.
6. The device of claim 1, wherein: the needle threading channel (11) comprises a threading section (111) arranged along the axial direction of the balloon catheter device (1) and a leading-out section (112) inclined towards the outer side direction of the balloon catheter device (1), and the leading-out section (112) is communicated with the threading section (111) through an arc-shaped channel (113).
7. The device of claim 2, wherein: the first balloon (4), the second balloon (5) and the third balloon (6) are all fixedly bonded with the balloon catheter device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000086.2U CN210697901U (en) | 2019-06-28 | 2019-06-28 | Positioning windowing device for covered stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000086.2U CN210697901U (en) | 2019-06-28 | 2019-06-28 | Positioning windowing device for covered stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210697901U true CN210697901U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921000086.2U Active CN210697901U (en) | 2019-06-28 | 2019-06-28 | Positioning windowing device for covered stent |
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| Country | Link |
|---|---|
| CN (1) | CN210697901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169845A (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 fenestration device of overlay film frame |
-
2019
- 2019-06-28 CN CN201921000086.2U patent/CN210697901U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169845A (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 fenestration device of overlay film frame |
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