CN112137761A - Visual intraoperative stent conveying device and intraoperative stent system thereof - Google Patents

Visual intraoperative stent conveying device and intraoperative stent system thereof Download PDF

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Publication number
CN112137761A
CN112137761A CN202011028604.9A CN202011028604A CN112137761A CN 112137761 A CN112137761 A CN 112137761A CN 202011028604 A CN202011028604 A CN 202011028604A CN 112137761 A CN112137761 A CN 112137761A
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China
Prior art keywords
image
duct
suction
supporting rod
stent
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Granted
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CN202011028604.9A
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CN112137761B (en
Inventor
郭宏伟
畅怡
方方
魏柯
范舒雅
刘创
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Fuwai Hospital of CAMS and PUMC
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Fuwai Hospital of CAMS and PUMC
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A61F2002/077—Stent-grafts having means to fill the space between stent-graft and aneurysm wall, e.g. a sleeve

Abstract

The invention relates to the field of cardiovascular medical treatment, and particularly discloses a visual intraoperative stent conveying device and an intraoperative stent system thereof; the conveying device comprises a supporting rod, a probe end, a transmission pipe and a display end, wherein the probe end is used for detecting image information in real time, the transmission pipe is used for transmitting image signals, and the display end is used for displaying images; an image pore canal is arranged in the supporting rod, the inlet end of the image pore canal is positioned at the rear section of the supporting rod, the outlet end of the image pore canal is positioned at the front end surface of the supporting rod, and the transmission pipe penetrates through the inlet end of the image pore canal and penetrates out of the outlet end of the image pore canal and then is connected to the probe end; the intraoperative stent system comprises a delivery device and a covered stent, wherein the covered stent comprises a metal mesh of a self-expansion structure and a covered film covering the metal mesh, and the metal mesh is configured to be compressed on a support rod through the covered film. The invention can realize the remote visualization of the implantation of the covered stent, thereby reducing the operation risk.

Description

Visual intraoperative stent conveying device and intraoperative stent system thereof
Technical Field
The invention relates to the field of cardiovascular medical treatment, in particular to a visual intraoperative stent conveying device and an intraoperative stent system comprising the visual intraoperative stent conveying device.
Background
The aortic dissection is an acute aortic disease with acute morbidity, fast progress, high mortality, great operation difficulty and poor prognosis; the pathophysiology of aortic dissection is aortic intimal rupture, and blood flows into the middle layer of aorta, so that the middle layer of aorta is split to form a true false cavity; at present, the most commonly adopted surgical mode for treating aortic dissection and aortic aneurysm is aortic arch replacement and bracket elephant nose surgery, in the surgery, a deep low-temperature stop circulation descending artificial four-branch blood vessel is adopted to replace the aortic arch part and three blood vessel branches (a brachiocephalic trunk, a left common carotid artery and a left subclavian artery), and meanwhile, an elephant nose bracket implantation operation at the far end of an aorta is carried out, the circulation is stopped while the aortic arch is opened, and the circulation is recovered after the far end of the aortic arch is well reconstructed.
At present, the intraoperative stent system (also called a stent trunk blood vessel) which is most clinically applied at home generally comprises a conveying device and a covered stent conveyed and positioned by the conveying device, wherein the conveying device consists of a metal pull rod, a binding wire, a support rod and a handle, the covered stent comprises a metal net with a self-expansion structure and a covering film covering the metal net, the metal net usually adopts shape memory alloy (such as cobalt-chromium alloy), the covering film usually is terylene, the covering film is usually sewn outside the metal net through surgical non-absorbable suture, the metal net is configured to be compressed on the support rod through the covering film (the covering film is restrained by the binding wire), and the covered stent is positioned and released at a target position by relieving the compression force of the covering film (an operator operates the metal pull rod to loosen the binding wire); see, for example, patents CN106618822A and CN 104622600 a.
The inventor of the invention found in long-term practice that the stent system in the operation has at least the following technical problems in clinical application: the guiding process of the covered stent through the conveying device has certain blindness, and because an operator can only see the proximal condition of the thoracic descending aorta and cannot see the distal implantation condition, special guidance is often needed during the operation or the judgment is only carried out by the experience of the operator; the former needs CT imaging data, or leads a guide wire through the femoral artery in advance under the guidance of X-rays, and then leads the guide wire into the trunk stent, so the operation is finished in a hybridization operating room, the complexity of the operation is improved, and the popularization and the application are not facilitated; the latter risks damaging the descending aorta wall and false lumen entry by mistake through intimal lacerations, with the catastrophic consequences of sustained dilatation and rupture of the descending aorta once this occurs.
Based on this, in order to reduce the surgical risk, the above technical problems need to be solved.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a visual intra-operative stent delivery device and an intra-operative stent system including the same, which can achieve distal end visualization of stent graft implantation, thereby reducing surgical risks.
In order to achieve the aim, the invention provides a visible intraoperative stent conveying device which comprises a supporting rod, wherein the front section of the supporting rod is provided with an installation part for installing a covered stent; the conveying device also comprises a probe end for detecting image information in real time, a transmission pipe for transmitting image signals and a display end for displaying images which are connected in sequence; the image duct is arranged in the support rod, the inlet end of the image duct is positioned at the rear section of the support rod, the outlet end of the image duct is positioned at the front end face of the support rod, and the transmission pipe penetrates through the inlet end of the image duct and penetrates out of the outlet end of the image duct and then is connected to the probe end.
As a further improvement to the technical scheme of the invention, the transmission pipe is internally distributed with optical fiber bundles or wires.
As a further improvement to the technical scheme of the invention, the supporting rod is a flexible rod structure which can be bent and shaped.
As a further improvement of the technical scheme of the invention, the conveying device further comprises an aspirator and a suction tube, wherein a suction duct for the suction tube to pass through is further arranged in the support rod, the inlet end of the suction duct is positioned at the rear section of the support rod, the outlet end of the suction duct is positioned at the front end face of the support rod, one end of the suction tube is connected with the suction end of the aspirator, and the other end of the suction tube penetrates through the inlet end of the suction duct and penetrates out of the outlet end of the suction duct.
As a further improvement of the technical solution of the present invention, the inlet end of the image duct or/and the inlet end of the suction duct are/is located at the rear end surface of the support bar.
Meanwhile, the invention also provides an intraoperative stent system which comprises a conveying device provided with a supporting rod and a covered stent, wherein the front section of the supporting rod is provided with an installation part for installing the covered stent; the covered stent comprises a metal mesh of a self-expansion structure and a covering film covering the metal mesh, wherein the metal mesh is configured to be compressed on the mounting part through the covering film, and the covered stent is positioned and released at a target position through releasing the compression force of the covering film;
the conveying device also comprises a probe end for detecting image information in real time, a transmission pipe for transmitting image signals and a display end for displaying images which are connected in sequence; the image duct is arranged in the support rod, the inlet end of the image duct is positioned at the rear section of the support rod, the outlet end of the image duct is positioned at the front end face of the support rod, and the transmission pipe penetrates through the inlet end of the image duct and penetrates out of the outlet end of the image duct and then is connected to the probe end.
As a further improvement of the technical scheme of the invention, the front end and the rear end of the coating respectively exceed the front end and the rear end of the metal mesh by a certain length, and the length of the coating is 150-280 mm.
As a further improvement to the technical scheme of the invention, the supporting rod is a flexible rod structure which can be bent and shaped.
As a further improvement of the technical scheme of the invention, the conveying device further comprises an aspirator and a suction tube, wherein a suction duct for the suction tube to pass through is further arranged in the support rod, the inlet end of the suction duct is positioned at the rear section of the support rod, the outlet end of the suction duct is positioned at the front end face of the support rod, one end of the suction tube is connected with the suction end of the aspirator, and the other end of the suction tube penetrates through the inlet end of the suction duct and penetrates out of the outlet end of the suction duct.
As a further improvement of the technical solution of the present invention, the inlet end of the image duct or/and the inlet end of the suction duct are/is located at the rear end surface of the support bar.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a visual intra-operative stent conveying device and an intra-operative stent system comprising the same, which creatively contribute to the addition of a visual component, wherein the visual component comprises a probe end, a transmission pipe and a display end, the transmission pipe is matched with an image pore channel of a support rod, so that the probe end is positioned in front of the front end surface of the support rod, image information of the advancing direction position of the support rod during operation can be detected in real time through the probe end, and an image signal is transmitted to the display end outside the support rod through the transmission pipe and displayed, thereby realizing the far-end visualization of the implantation of a covered stent, enabling an operator to implant the covered stent under a direct-view condition through the display end, effectively avoiding the damage to the wall of an aorta during the implantation of the stent, preventing the stent from mistakenly entering a false cavity through an intimal breach, and greatly reducing the operation risk.
Moreover, the stent implantation position is accurate and controllable by the invention, and special guidance is not needed, thus being beneficial to popularization and application.
The invention improves the operation safety and the operation efficiency, reduces the operation cost, meets the social requirements, has strong practicability and is beneficial to promoting the development of cardiovascular medical technology.
Drawings
FIG. 1 is a schematic view of a visual intraoperative stent delivery device of the present invention;
FIG. 2 is a schematic structural view of an intraoperative stent system of the present invention;
FIG. 3 is a schematic structural view of the stent graft of the present invention in a released state.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments; of course, the drawings are simplified schematic drawings, and the scale of the drawings does not limit the patented products.
Example one
As shown in fig. 1, the present embodiment provides a visual intraoperative stent delivery device, which includes a support rod 1, a probe end 2 for detecting image information in real time, a transmission tube 3 for transmitting image signals, and a display end 4 for displaying images, which are connected in sequence; an image pore passage 5 is arranged in the support rod 1, the inlet end of the image pore passage 5 is positioned at the rear section of the support rod 1, the outlet end of the image pore passage 5 is positioned at the front end face of the support rod 1, and the transmission pipe 3 penetrates in from the inlet end of the image pore passage 5 and penetrates out from the outlet end of the image pore passage 5 and then is connected to the probe end 2.
The intraoperative stent delivery device comprises a support rod 1, a metal pull rod 6, a binding wire 7 and other components, and the use mode of the intraoperative stent delivery device is basically the same as that of the prior art, and can be seen in patents CN106618822A and CN 104622600 a. The support rod 1 can comprise a front section and a rear section, wherein the front section is provided with a mounting part 1a for mounting the film-coated bracket, and the rear section can be used as an operating handle; the front end of the supporting rod 1 is also the far end during operation, namely the lower end in figure 1; the support rod 1 may be a round rod structure, and may have a diameter of 12mm, for example.
The main creative contribution of the visible intraoperative stent conveying device provided by the embodiment lies in the addition of a visible component, the visible component comprises a probe end 2, a transmission pipe 3 and a display end 4, wherein the transmission pipe 3 is matched with an image pore 5 of a support rod 1 (the image pore 5 is preferably a round hole, the diameter of the image pore can be 4mm for example), so that the probe end 2 is positioned in front of the front end surface of the support rod 1, the image information of the advancing direction position of the support rod 1 in the operation can be detected in real time through the probe end 2, the image signal is transmitted to the display end 4 outside the support rod 1 through the transmission pipe 3 and displayed, thereby realizing the far end visualization of the implantation of the covered stent, an operator can implant the covered stent under the direct-view condition through the display end 4, effectively avoiding the damage to the aorta wall in the stent implantation process and preventing the stent from mistakenly entering a false cavity through an intimal breach, greatly reducing the operation risk.
The visualization component may for example take the following structure:
firstly, a visualization component adopts a structure of a fiber endoscope, namely light and images are conducted by combining optical fibers and a lens, optical fiber bundles are distributed in a transmission tube 3 at the moment, the optical fiber bundles comprise light beams and image bundles, the light beams are used for conducting light generated by a cold light source to the surface of an observed object and illuminating the surface of the observed object, one end of the image bundle is aligned to an ocular lens, the other end of the image bundle is aligned to the surface of the observed object through an objective lens, and the condition of the surface of an internal organ can be visually observed through the ocular lens; at the moment, the probe end 2 is an objective lens structure, and the display end 4 can be an eyepiece structure or a display for amplifying and displaying after converting an optical signal into an electric signal;
secondly, the visualization component adopts the structure of an electronic endoscope, namely, light energy is converted into electric energy through a miniature image sensor (CCD, charge coupled device), an image is reconstructed through an image processor and displayed on a monitor screen, at the moment, the probe end 2 is the CCD, the probe end 2 can also be connected with an illuminating unit (such as an LED illuminating lamp), conducting wires are distributed in the transmission tube 3, the electric energy and signals are transmitted through the conducting wires, and the display end 4 is a display which converts optical signals into electric signals and then performs amplification display.
In this embodiment, the supporting rod 1 is a flexible rod structure that can be bent and shaped. The support rod 1 can be made of a material with elasticity and flexibility (such as flexible ABS); by adopting the structure, the support rod 1 has higher adjustability, so that the support rod can adapt to the shapes of the proximal descending aorta of different patients, is specifically shaped according to the shapes of the proximal descending aorta, reduces the implantation difficulty of the stent, and prevents the descending aorta from being damaged.
In this embodiment, the conveying device further includes an aspirator 8 and a suction tube 9, a suction duct 10 for the suction tube 9 to pass through is further provided in the support rod 1, an inlet end of the suction duct 10 is located at a rear section of the support rod 1, an outlet end of the suction duct 10 is located at a front end face of the support rod 1, one end of the suction tube 9 is connected with a suction end of the aspirator 8, and the other end of the suction tube 9 penetrates through the inlet end of the suction duct 10 and penetrates out of the outlet end of the suction duct 10. The suction duct 10 is arranged in parallel with the image duct 5, the suction duct 10 is matched with the suction tube 9, the suction duct 10 is preferably of a circular duct structure, and the diameter of the suction duct 10 can be 5mm, for example; the aspirator 8 can generate negative pressure, and can be a medical extracorporeal circulation machine for example; the suction tube 9 can use a medical silicone tube, a plurality of suction holes are distributed at the front end of the suction tube, and negative pressure generated by the suction device 8 is conducted through the suction tube 9 so as to completely absorb bleeding in an operation field area, so that the operation field is clear in the implantation process of the support, the visibility of operation is further improved, and the operation safety is improved.
In this embodiment, the inlet ends of the image duct 5 and the suction duct 10 are both located at the rear end surface of the support bar 1. At this time, the image pore 5 and the suction pore 10 both penetrate through the support rod 1 along the length direction of the support rod 1, which facilitates the processing and molding of the pore.
Example two
As shown in fig. 1 to 3: the embodiment provides an intraoperative stent system which comprises a conveying device and a covered stent, wherein the conveying device is provided with a supporting rod 1, and the front section of the supporting rod 1 is provided with a mounting part 1a for mounting the covered stent; the stent graft comprises a metal mesh 12 of a self-expanding structure and a coating film 13 coating the metal mesh 12, wherein the metal mesh 12 is configured to be compressed on the mounting portion 1a by the coating film 13 and to positionally release the stent graft to a target position by releasing the compression force of the coating film 13.
The conveying device comprises a metal pull rod 6, a binding wire 7 and other components besides the supporting rod 1, and the use mode of the conveying device is basically the same as that of the prior art, and can be seen in patents CN106618822A and CN 104622600 a. The support rod 1 can comprise a front section and a rear section, wherein the front section is provided with a mounting part 1a for mounting the film-coated bracket, and the rear section can be used as an operating handle; the front end of the supporting rod 1 is also the far end during operation, namely the lower end in figure 1; the support rod 1 may be a round rod structure, and may have a diameter of 12mm, for example.
The metal mesh 12 may be made of a shape memory alloy (e.g., cobalt chrome alloy), the covering film 13 may be made of dacron, the covering film 13 may be sewn to the outside of the metal mesh 12 by a surgical non-absorbable suture, and the metal mesh 12 may be configured to be compressed on the support rod 1 by the covering film 13 (the covering film 13 is restrained by the binding wire 7) and to be positioned and released to a target position by releasing the compression force of the covering film 13 (the operator operates the metal pull rod 6 to loosen the binding wire 7).
The conveying device also comprises a probe end 2 for detecting image information in real time, a transmission pipe 3 for transmitting image signals and a display end 4 for displaying images which are connected in sequence; an image pore passage 5 is arranged in the support rod 1, the inlet end of the image pore passage 5 is positioned at the rear section of the support rod 1, the outlet end of the image pore passage 5 is positioned at the front end face of the support rod 1, and the transmission pipe 3 penetrates in from the inlet end of the image pore passage 5 and penetrates out from the outlet end of the image pore passage 5 and then is connected to the probe end 2.
The main inventive contribution of the intraoperative stent system provided by the embodiment lies in the addition of a visualization component, wherein the visualization component comprises a probe end 2, a transmission pipe 3 and a display end 4, wherein the transmission tube 3 is matched with the image duct 5 of the support rod 1 (the image duct 5 is preferably a round hole, the diameter of which can be 4mm for example), so that the probe end 2 is positioned in front of the front end surface of the support rod 1, the image information of the advancing direction position of the supporting rod 1 can be detected in real time through the probe end 2, the image signal is transmitted to the display end 4 outside the supporting rod 1 through the transmission pipe 3 and displayed, thereby realize that the distal end of tectorial membrane support implantation is visual, the art person can carry out the implantation of tectorial membrane support under the direct-view condition through showing end 4, has effectively avoided the support to implant in-process damage and has fallen the aorta wall, prevents that the support from going into false chamber through the mistake of inner membrance breach, greatly reduced the operation risk.
The visualization component may for example take the following structure:
firstly, a visualization component adopts a structure of a fiber endoscope, namely light and images are conducted by combining optical fibers and a lens, optical fiber bundles are distributed in a transmission tube 3 at the moment, the optical fiber bundles comprise light beams and image bundles, the light beams are used for conducting light generated by a cold light source to the surface of an observed object and illuminating the surface of the observed object, one end of the image bundle is aligned to an ocular lens, the other end of the image bundle is aligned to the surface of the observed object through an objective lens, and the condition of the surface of an internal organ can be visually observed through the ocular lens; at the moment, the probe end 2 is an objective lens structure, and the display end 4 can be an eyepiece structure or a display for amplifying and displaying after converting an optical signal into an electric signal;
secondly, the visualization component adopts the structure of an electronic endoscope, namely, light energy is converted into electric energy through a miniature image sensor (CCD, charge coupled device), an image is reconstructed through an image processor and displayed on a monitor screen, at the moment, the probe end 2 is the CCD, the probe end 2 can also be connected with an illuminating unit (such as an LED illuminating lamp), conducting wires are distributed in the transmission tube 3, the electric energy and signals are transmitted through the conducting wires, and the display end 4 is a display which converts optical signals into electric signals and then performs amplification display.
In this embodiment, the front end and the rear end of the coating film 13 respectively exceed the front end and the rear end of the metal mesh 12 by a certain length, and the length L of the coating film 13 is 150mm to 280 mm. In fig. 3, the front end of the covering membrane 13 is the upper end (near the proximal end in operation), and the rear end of the covering membrane 13 is the lower end (near the distal end in operation); the length of the front and rear ends of the covering film 13 beyond the front and rear ends of the metal mesh 12 may be, for example, 3mm to 10mm to form a suture edge without a metal portion, the front suture edge being used for intra-operative suturing, and the rear suture edge being used for suturing for a secondary operation (thoraco-abdominal aorta replacement) for facilitating the operation. The length L of the coating film 13 is designed to be 150mm-280mm so as to meet the requirement of each type of descending aorta lesion, and the length L of the coating film 13 can completely cover the descending aorta lesion so as to promote the remodeling of the far-end aorta and reduce the risk of long-term reoperation; specifically, the length L of the covering membrane 13 can be 150mm, 180mm, 200mm, 220mm, 250mm or 280mm, and can reach the eighth thoracic vertebra level, so as to promote the distal shaping of the descending thoracic aorta and provide convenience for the second-stage thoracic-abdominal aorta replacement (provide a lower anastomotic plane); at this time, the length of the front-stage mounting part 1a of the support bar 1 is adapted to the length L of the coating film 13.
In this embodiment, the supporting rod 1 is a flexible rod structure that can be bent and shaped. The support rod 1 can be made of a material with elasticity and flexibility (such as flexible ABS); by adopting the structure, the support rod 1 has higher adjustability, so that the support rod can adapt to the shapes of the proximal descending aorta of different patients, is specifically shaped according to the shapes of the proximal descending aorta, reduces the implantation difficulty of the stent, and prevents the descending aorta from being damaged.
In this embodiment, the conveying device further includes an aspirator 8 and a suction tube 9, a suction duct 10 for the suction tube 9 to pass through is further provided in the support rod 1, an inlet end of the suction duct 10 is located at a rear section of the support rod 1, an outlet end of the suction duct 10 is located at a front end face of the support rod 1, one end of the suction tube 9 is connected with a suction end of the aspirator 8, and the other end of the suction tube penetrates through the inlet end of the suction duct 10 and penetrates out of the outlet end of the suction duct 10. The suction duct 10 is arranged in parallel with the image duct 5, the suction duct 10 is matched with the suction tube 9, the suction duct 10 is preferably of a circular duct structure, and the diameter of the suction duct 10 can be 5mm, for example; the aspirator 8 can generate negative pressure, and can be a medical extracorporeal circulation machine for example; the suction tube 9 can use a medical silicone tube, a plurality of suction holes are distributed at the front end of the suction tube, and negative pressure generated by the suction device 8 is conducted through the suction tube 9 so as to completely absorb bleeding in an operation field area, so that the operation field is clear in the implantation process of the support, the visibility of operation is further improved, and the operation safety is improved.
In this embodiment, the inlet ends of the image duct 5 and the suction duct 10 are both located at the rear end surface of the support bar 1. At this time, the image pore 5 and the suction pore 10 both penetrate through the support rod 1 along the length direction of the support rod 1, which facilitates the processing and molding of the pore.
Finally, the principle and embodiments of the present invention are explained by using specific examples, and the above descriptions of the examples are only used to help understand the core idea of the present invention, and the present invention can be modified and modified without departing from the principle of the present invention, and the modified and modified examples also fall into the protection scope of the present invention.

Claims (10)

1. The utility model provides a support conveyor in visual type art, includes the bracing piece, the anterior segment of bracing piece is equipped with the installation department that is used for installing tectorial membrane support, its characterized in that:
the conveying device also comprises a probe end for detecting image information in real time, a transmission pipe for transmitting image signals and a display end for displaying images which are connected in sequence; the image duct is arranged in the support rod, the inlet end of the image duct is positioned at the rear section of the support rod, the outlet end of the image duct is positioned at the front end face of the support rod, and the transmission pipe penetrates through the inlet end of the image duct and penetrates out of the outlet end of the image duct and then is connected to the probe end.
2. A visual intra-operative stent delivery apparatus as defined in claim 1, wherein:
and the transmission pipe is internally distributed with optical fiber bundles or wires.
3. A visual intra-operative stent delivery apparatus as defined in claim 1, wherein:
the supporting rod is a flexible rod structure which can be bent and shaped.
4. A visual intra-operative stent delivery apparatus as defined in claim 1, wherein:
the conveying device further comprises an aspirator and a suction tube, wherein a suction duct for the suction tube to pass through is further arranged in the supporting rod, the inlet end of the suction duct is located at the rear section of the supporting rod, the outlet end of the suction duct is located at the front end face of the supporting rod, one end of the suction tube is connected with the suction end of the aspirator, and the other end of the suction tube penetrates through the inlet end of the suction duct and penetrates out of the outlet end of the suction duct.
5. A visual intra-operative stent delivery device as defined in claim 4, wherein:
the inlet end of the image pore canal or/and the inlet end of the suction pore canal are/is positioned at the rear end surface of the support rod.
6. An intraoperative stent system comprises a conveying device provided with a supporting rod and a covered stent, wherein the front section of the supporting rod is provided with an installation part for installing the covered stent;
the covered stent comprises a metal mesh of a self-expansion structure and a covering film covering the metal mesh, wherein the metal mesh is configured to be compressed on the mounting part through the covering film, and the covered stent is positioned and released at a target position through releasing the compression force of the covering film; the method is characterized in that:
the conveying device also comprises a probe end for detecting image information in real time, a transmission pipe for transmitting image signals and a display end for displaying images which are connected in sequence; the image duct is arranged in the support rod, the inlet end of the image duct is positioned at the rear section of the support rod, the outlet end of the image duct is positioned at the front end face of the support rod, and the transmission pipe penetrates through the inlet end of the image duct and penetrates out of the outlet end of the image duct and then is connected to the probe end.
7. An intraoperative stent system according to claim 6, wherein:
the front end and the rear end of the film respectively exceed the front end and the rear end of the metal mesh by a certain length, and the length of the film is 150-280 mm.
8. An intraoperative stent system according to claim 6, wherein:
the supporting rod is a flexible rod structure which can be bent and shaped.
9. An intraoperative stent system according to claim 6, wherein:
the conveying device further comprises an aspirator and a suction tube, a suction duct for the suction tube to pass through is further arranged in the supporting rod, the inlet end of the suction duct is located at the rear section of the supporting rod, the outlet end of the suction duct is located at the front end face of the supporting rod, one end of the suction tube is connected with the suction end of the aspirator, and the other end of the suction tube penetrates through the inlet end of the suction duct and penetrates out of the outlet end of the suction duct.
10. An intraoperative stent system according to claim 9, wherein:
the inlet end of the image pore canal or/and the inlet end of the suction pore canal are/is positioned at the rear end surface of the support rod.
CN202011028604.9A 2020-09-27 2020-09-27 Surgical visual intraoperative support system Active CN112137761B (en)

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WO2005112823A1 (en) * 2004-05-04 2005-12-01 The Board Of Regents Of The University Of Texas System Percutaneous implantation of partially covered stents in aneurysmally dilated arterial segments with subsequent embolization and obliteration of the aneurysm cavity
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