CN111228009A

CN111228009A - Stent implantation conveyor and implantation system

Info

Publication number: CN111228009A
Application number: CN202010027908.7A
Authority: CN
Inventors: 李雷; 张晓冬; 姜君
Original assignee: Beijing Angel Reach Medical Technical Co ltd
Current assignee: Beijing Angel Reach Medical Technical Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-06-05

Abstract

The present disclosure relates to a stent implantation transporter and an implantation system. The conveyor comprises a main body and an emptying device, wherein the main body is provided with an outer end used for being connected with an operating handle and an inner end used for being implanted into a human body, the emptying device is arranged at the outer end of the main body, the main body comprises a multi-cavity sheath pipe with a plurality of axial through cavities, the emptying device comprises a shell for limiting a liquid storage cavity, a liquid injection port and a plurality of exhaust holes are formed in the shell, and the exhaust holes are respectively communicated with the cavities of the multi-cavity sheath pipe in a one-to-one correspondence mode so as to exhaust gas in the corresponding cavities. Before the implantation operation, liquid such as physiological saline is injected into the emptying device to discharge air in the multi-cavity sheath tube, so that the problems of air embolism and the like caused by the fact that the air in the multi-cavity sheath tube enters the blood vessel of a human body are avoided, and the injury of the implantation operation to a patient is reduced.

Description

Stent implantation conveyor and implantation system

Technical Field

The disclosure relates to the field of implantation medical treatment, in particular to a stent implantation conveyor and an implantation system.

Background

In implantation medical treatment, for example, in the treatment of vascular disease, it is often necessary to implant a stent graft into a diseased blood vessel of a human body, and the stent graft needs to be delivered to the site of the disease by means of a stent graft delivery device including a plurality of tubular members for accommodating a guide wire or the like, such as a multi-lumen sheath, an inner tube, or the like. In the implantation process, air in the pipe fitting is easy to cause air embolism after entering blood, so that the risks of myocardial infarction, cerebral infarction and the like are increased.

Disclosure of Invention

An object of the present disclosure is to provide a stent implantation transporter and an implantation system, which can exhaust air therein, avoiding problems such as air embolism.

In order to achieve the above object, the present disclosure provides a stent implantation transporter, including a main body and an evacuation device, the main body has an outer end for connecting with an operating handle and an inner end for implanting into a human body, the evacuation device is disposed at the outer end of the main body, the main body includes a multi-cavity sheath tube having a plurality of axial through cavities, the evacuation device includes a housing defining a liquid storage cavity, a liquid injection port and a plurality of exhaust holes are formed on the housing, and the exhaust holes are respectively communicated with the cavities of the multi-cavity sheath tube in a one-to-one correspondence manner so as to exhaust gas in the corresponding cavities.

Optionally, the main body further comprises a plurality of inner tubes disposed in each channel of the multi-lumen sheath tube, the inner tubes being inserted into the air vent to communicate with the reservoir chamber.

Optionally, a guide wire leading-out area is further formed on the housing, a plurality of guide wire via holes are formed on the guide wire leading-out area, and the diameter of each guide wire via hole is configured to allow only a single guide wire to pass through the housing.

Optionally, the emptying device further comprises a sheet-shaped elastic sealing gasket, the elastic sealing gasket is attached to the inner wall of the guide wire leading-out area, and the elastic sealing gasket is used for allowing the guide wire to penetrate through the elastic sealing gasket.

Optionally, the housing is formed in a cylindrical shape and includes a side wall, and a first end surface and a second end surface respectively located at two ends of the side wall, the plurality of exhaust holes are disposed on the first end surface, the guide wire leading-out region is disposed on the second end surface, and the guide wire via holes and the exhaust holes are disposed in a one-to-one correspondence manner, so as to allow the guide wires entering the liquid storage cavity from the exhaust holes to pass through the housing.

Optionally, the first end surface is further formed with a thickened platform, the exhaust hole penetrates through the thickened platform, and the inner pipe extends from the outer end to the inner end of the exhaust hole and is attached to the hole wall of the exhaust hole.

Optionally, a liquid injection joint is further arranged on the side wall of the casing, the liquid injection joint is formed into a tubular shape, one end of the liquid injection joint is fixed on the side wall and communicated with the liquid storage cavity, and the other end of the liquid injection joint is far away from the side wall and extends outwards to form the liquid injection port.

Optionally, the end of the housing, which is away from the exhaust hole, is in an open state, and includes an outer cover formed as the second end surface, the outer cover is detachably fixed to the sidewall, the first end surface is further formed with a first core guiding via hole, the second end surface is further formed with a second core guiding via hole, and the first core guiding via hole and the second core guiding via hole are coaxially disposed.

Optionally, the housing further has a plurality of mounting lugs formed thereon, the mounting lugs having mounting holes formed thereon for securing the housing to the operating handle by fasteners.

Another aspect of the present disclosure also provides an implantation system comprising an operating handle and a stent implantation transporter as described above, the operating handle interfacing with the outer end of the body, and the evacuation device being disposed inside the operating handle.

Through the technical scheme, before the implantation operation, the liquid such as the physiological saline is injected into the liquid injection port of the emptying device, so that the liquid is filled in the liquid storage cavity of the emptying device and the cavity channel in the multi-cavity sheath tube, the air in the multi-cavity sheath tube is discharged, the problems of air embolism and the like caused when the air in the multi-cavity sheath tube enters the blood vessel of a human body are avoided, and the injury of the implantation operation to a patient is reduced. In addition, the emptying device disclosed by the invention is provided with a plurality of exhaust holes which are respectively communicated with the cavities in the multi-cavity sheath tube in a one-to-one correspondence manner, so that the air in each cavity is discharged in a targeted manner, the air is prevented from remaining in the cavity, and the air discharging effect is improved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a longitudinal cross-sectional view of a stent implantation delivery device in an embodiment of the present disclosure;

fig. 2 is a longitudinal cross-sectional view of an evacuation device in an embodiment of the disclosure.

Description of the reference numerals

1. A main body; 11. an outer end; 12. an inner end; 13. a multi-lumen sheath tube; 14. an inner tube; 2. an evacuation device; 21. a housing; 211. a side wall; 212. a first end face; 213. a second end face; 22. a liquid injection port; 23. an exhaust hole; 24. a guide wire lead-out region; 25. an elastic sealing gasket; 26. a thickening table; 27. a liquid injection joint; 28. an outer cover; 291. a first core via; 292. a second core via; 3. mounting a lug; 31. mounting holes; 4. a guidewire.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the use of the terms of orientation such as "inner and outer" as used herein refers to the inner and outer of the respective component profiles, the "inner end" of the stent graft transporter refers to the end that can be implanted into the human body, and the "outer end" refers to the end that is located outside the human body. The foregoing directional terms are used only to explain and illustrate the present disclosure, and are not to be construed as limiting the present disclosure. Furthermore, the use of terms such as "first," "second," etc., are used to distinguish one element from another, and are not necessarily order nor importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

The embodiment of the present disclosure provides a stent implantation conveyer, as shown in fig. 1 and 2, the stent implantation conveyer includes a main body 1 and an evacuation device 2, the main body 1 has an outer end 11 for connecting with an operating handle and an inner end 12 for implanting into a human body, the evacuation device 2 is disposed at the outer end 11 of the main body 1, the main body 1 includes a multi-lumen sheath 13 having a plurality of axial through lumens, the evacuation device 2 includes a housing 21 defining a liquid storage chamber, a liquid injection port 22 and a plurality of exhaust holes 23 are formed on the housing 21, the plurality of exhaust holes 23 are respectively communicated with the lumens of the multi-lumen sheath 13 in a one-to-one correspondence manner to exhaust gas in the corresponding lumens.

According to the structure of the stent implantation conveyor, before the implantation operation, liquid such as physiological saline is injected into the liquid injection port 22 of the emptying device 2, so that the liquid is filled in the liquid storage cavity of the emptying device 2 and the cavity in the multi-cavity sheath tube 13 to discharge air in the multi-cavity sheath tube 13, the problems of air embolism and the like caused by the fact that the air in the multi-cavity sheath tube 13 enters the blood vessel of a human body are avoided, and the injury of the implantation operation to a patient is reduced. In addition, the evacuation device 2 of the present disclosure has a plurality of exhaust holes 23, which are respectively in one-to-one correspondence with the channels in the multi-cavity sheath tube 13, so as to discharge the air in each channel in a targeted manner, avoid the air remaining in the channels, and improve the effect of air discharge.

In the disclosed embodiment, the evacuation device 2 may be directly connected to the multi-lumen sheath 13, or may be connected to the multi-lumen sheath 13 through the inner tube 14. In one example of the present disclosure, as shown in fig. 1, the main body 1 further includes a plurality of inner tubes 14 disposed in the respective channels of the multi-lumen sheath 13, and the inner tubes 14 are inserted into the air discharge holes 23 to communicate with the reservoir chamber. Each of the inner tubes 14 is in one-to-one correspondence with the exhaust holes 23 to exhaust the air in the inner tube 14 through the evacuation device 2.

The guide wire 4 of the stent implantation transporter may be arranged in an inner tube 14, said inner tube 14 being adapted to provide the guide wire 4 with a passage through the multilumen sheath 13 and extending from the multilumen sheath 13 to the evacuation device 2, avoiding entanglement between the guide wires 4.

The guide wire 4 is a wire for guiding and controlling a stent implantation transporter, one end of which extends to the inner end 12 of the body 1, and the other end extends through the stent implantation transporter and to an operating handle by which the guide wire 4 is controlled. In this way, the guide wire 4 needs to be led out from the evacuation device 2 after entering the liquid storage cavity of the evacuation device 2 from the inner tube 14, so that a guide wire lead-out area 24 is further formed on the housing 21 of the evacuation device 2, and a plurality of guide wire via holes are formed on the guide wire lead-out area 24, and the diameter of each guide wire via hole is configured to allow only a single guide wire 4 to pass through the housing 21. Thus, when the guide wire 4 is arranged in the guide wire through hole in a penetrating mode, the guide wire 4 just blocks the guide wire through hole, and liquid is prevented from flowing out of the guide wire through hole.

In order to further enhance the sealing performance of the guide wire leading-out area 24 on the evacuation device 2, as shown in fig. 2, the evacuation device 2 further includes a sheet-shaped elastic sealing gasket 25, the elastic sealing gasket 25 is attached to the inner wall of the guide wire leading-out area 24, and the elastic sealing gasket 25 is used for allowing the guide wire 4 to penetrate through. Wherein, this elastic sealing gasket 25 can be made by materials such as medical rubber, silica gel or latex, makes after this elastic sealing gasket 25 is punctured to seal wire 4, and elastic sealing member can with seal wire 4 in close contact with to prevent that the liquid in the emptying devices 2 from leading out the district 24 from the seal wire and oozing, like this, also can avoid implanting the hourglass blood problem in the operation, reduce the operation risk.

Moreover, by providing the elastic sealing gasket 25, when the operation of withdrawing the guide wire 4 is performed, the guide wire 4 is moved outward and separated from the elastic sealing gasket 25, and the elastic sealing gasket 25 can restore the puncture hole of the guide wire 4 to a sealing state under the action of the elastic restoring force, so that the elastic sealing gasket 25 can maintain good sealing performance under the conditions of traction movement, separation and the like of the guide wire 4, and can effectively prevent the problems of blood seepage, liquid seepage and the like.

The elastic sealing gasket 25 can be adhered to the inner wall of the guide wire leading-out area 24 through viscose glue, so that the elastic sealing gasket 25 is tightly adhered to the guide wire leading-out area 24, and gaps are prevented from appearing on an adhering surface.

In the embodiment of the present disclosure, as shown in fig. 1 and 2, the housing 21 of the evacuation device 2 may be adaptively designed according to an installation space, and in an example of the present disclosure, the housing 21 may be formed in a cylindrical shape and include a side wall 211, and a first end surface 212 and a second end surface 213 respectively located at both ends of the side wall 211, for example, may be formed in a cylindrical shape to facilitate processing, or may be formed in a prismatic shape to facilitate limiting a circumferential rotation thereof after installation, etc., which is not limited by the present disclosure.

As shown in fig. 2, the exhaust holes 23 of the evacuation device 2 are disposed on the first end surface 212, the guide wire leading-out region 24 is disposed on the second end surface 213, and the guide wire via holes and the exhaust holes 23 are disposed in a one-to-one correspondence manner, so as to allow the guide wire 4 in the inner tube 14 to pass through the housing 21, and the guide wire 4 can extend from the exhaust holes 23 to the guide wire via holes along a straight line and pass through without changing the direction, thereby preventing the guide wire 4 from winding around each other in the liquid storage cavity.

In the embodiment of the present disclosure, as shown in fig. 2, the inner tube 14 may be directly inserted into the exhaust hole 23 of the evacuation device 2, the first end surface 212 of the housing 21 further forms a thickened platform 26, the exhaust hole 23 penetrates through the thickened platform 26, and the inner tube 14 extends from the outer end 11 to the inner end 12 of the exhaust hole 23 and fits the hole wall of the exhaust hole 23. The effective engagement length of the inner tube 14 with the vent hole 23 can be increased by the thickening table 26, thereby increasing the stability of the engagement of the inner tube 14 with the evacuation device 2. The thickening table 26 may be integrally formed with the first end surface 212, and the thickening table 26 may be provided on the entire surface of the first end surface 212 for easy processing; alternatively, the thickened table 26 may be provided only in the region where the exhaust hole 23 is opened, so that the thickened table 26 and the first end surface 212 are formed in a stepped shape, thereby enhancing the stability of the inner tube 14 and reducing the weight of the evacuation device 2, thereby making the operation more convenient.

In order to facilitate the connection of the liquid injector, as shown in fig. 1 and 2, the side wall 211 of the casing 21 is further provided with a liquid injection connector 27, the liquid injection connector 27 is formed in a tubular shape, one end of the liquid injection connector 27 is fixed on the side wall 211 and communicated with the liquid storage cavity, and the other end of the liquid injection connector 27 extends outwards away from the side wall 211 and is formed as a liquid injection port 22. The liquid filling connector 27 can be used to connect various medical connectors, such as luer connectors, hose connectors, etc., and the emptying device 2 can be installed inside the operating handle, so that the liquid filling connector 27 can be extended to a length that the liquid filling port 22 is located outside the operating handle, so as to facilitate liquid filling through the liquid filling port 22.

In order to facilitate the installation of the inner tube 14, the guide wire 4, the elastic packing 25, and the like, as shown in fig. 2, the end of the housing 21 away from the exhaust hole 23 is opened, and includes an outer cover 28 formed as a second end surface 213, the outer cover 28 being detachably fixed to the side wall 211. For example, the outer cover 28 and the side wall 211 can be connected by a snap fit, a limiting protrusion is formed on the outer cover 28, a limiting groove is formed on the side wall 211, and the outer cover 28 can be locked on the side wall 211 only by snapping the limiting protrusion into the limiting groove during installation, which is very convenient. In other examples of the present disclosure, the outer cover 28 may be cooperatively connected with the sidewall 211 by other means such as adhesion, which is not limited by the present disclosure.

In one example of the present disclosure, the guide wire lead-out region 24 may be formed on the outer cover 28, and accordingly, the elastic packing 25 may be attached to the inner side of the outer cover 28, so that it is easier to process the guide wire lead-out region 24 and install the elastic packing 25.

Alternatively, the shape and size of the elastic sealing gasket 25 may be conformed to the shape and size of the inner side wall 211 of the outer cover 28, so that the outer cover 28 can press the peripheral edge of the elastic sealing gasket 25 against the end surface of the side wall 211 to enhance the sealing property.

In the disclosed embodiment, the stent delivery device may further comprise a guide core, which also extends through the main body 1 and the evacuation device 2 of the stent delivery device and to the operating handle for control. Therefore, as shown in fig. 2, a through hole for allowing the core to pass through needs to be provided in the evacuation device 2, a first core guiding through hole 291 is further formed on the first end surface 212, a second core guiding through hole 292 is further formed on the second end surface 213, and the first core guiding through hole 291 and the second core guiding through hole 292 are coaxially provided. In this way, the guide core can be passed through the emptying device 2 in a straight line.

To avoid the core from affecting the sealing performance of the evacuation device 2 during movement, in an exemplary embodiment, coaxial elastic sealing rings may be installed on the inner sidewalls 211 of the first and second core through

holes

291 and 292.

As shown in fig. 1 and 2, the evacuation device 2 is mounted at the outer end 11 of the stent graft transporter, for example, the evacuation device 2 may be mounted inside the operating handle. Thus, in order to fix the evacuation device 2, a plurality of mounting lugs 3 are further formed on the housing 21 of the evacuation device 2, mounting holes 31 are formed on the mounting lugs 3, the mounting holes 31 are used for fixing the housing 21 to the operating handle by fasteners, and the specific structure of the mounting lugs 3 can be adaptively designed according to the mounting space of the evacuation device 2, which is not limited by the present disclosure. For example, the mounting lug 3 may be formed on the side wall 211 of the housing 21 to avoid affecting the exhaust hole 23 and the guide wire lead-out region 24 of the end surface of the housing 21.

The present disclosure also provides an implantation system comprising an operating handle and a stent implantation transporter as described above, the operating handle being docked to the outer end 11 of the main body 1, and the evacuation device 2 being provided inside the operating handle.

Specifically, the evacuation device 2 is fixed inside an operation handle by the mounting lug 3, the operation handle is butted with the outer end 11 of the main body 1, the exhaust holes 23 of the evacuation device 2 are aligned with each cavity of the multi-cavity sheath 13, and the guide core and the guide wire 4 in the multi-cavity sheath 13 penetrate through the evacuation device 2 and extend to the control part of the operation handle.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The stent implantation conveyor is characterized by comprising a main body (1) and an emptying device (2), wherein the main body (1) is provided with an outer end (11) connected with an operating handle and an inner end (12) implanted into a human body, the emptying device (2) is arranged at the outer end (11) of the main body (1), the main body (1) comprises a multi-cavity sheath tube (13) with a plurality of axial through cavities, the emptying device (2) comprises a shell (21) for limiting a liquid storage cavity, a liquid injection port (22) and a plurality of exhaust holes (23) are formed in the shell (21), and the exhaust holes (23) are respectively communicated with the cavities of the sheath tube in a one-to-one correspondence manner so as to exhaust gas in the corresponding cavities.

2. The stent delivery device of claim 1, wherein the main body further comprises a plurality of inner tubes (14) disposed in respective channels of a multi-lumen sheath (13), the inner tubes being inserted into the air-bleeding holes to communicate with the reservoir chamber.

3. The stent implantation transporter according to claim 1, wherein the housing (21) further has a guide wire exit region (24) formed thereon, the guide wire exit region (24) having a plurality of guide wire vias formed thereon, the guide wire vias having a diameter configured to allow only a single guide wire to pass through the housing (21).

4. A stent implantation transporter according to claim 3, wherein the evacuation device (2) further comprises a sheet-like elastic sealing gasket (25), the elastic sealing gasket (25) being attached to the inner wall of the guide wire exit region (24), the elastic sealing gasket (25) being adapted to allow the guide wire (4) to penetrate therethrough.

5. The stent implantation transporter according to claim 3 or 4, wherein the housing (21) is formed in a columnar shape and includes a side wall (211), and a first end surface (212) and a second end surface (213) respectively located at both ends of the side wall (211), the plurality of exhaust holes (23) are provided on the first end surface (212), the guide wire lead-out region (24) is provided on the second end surface (213), and the guide wire via holes are provided in one-to-one correspondence with the exhaust holes (23) to allow guide wires (4) entering the reservoir from the exhaust holes (23) to pass out of the housing (21).

6. The stent implantation transporter according to claim 5, wherein the first end surface (212) is further formed with a thickened platform (26), the exhaust holes (23) extend through the thickened platform (26), and the inner tube (14) extends from an outer end to an inner end of the exhaust holes (23) and conforms to the hole walls of the exhaust holes.

7. The stent implantation transporter according to claim 1, wherein a liquid injection joint (27) is further provided on the side wall (211) of the housing (21), the liquid injection joint (27) being formed in a tubular shape and having one end fixed to the side wall (211) to communicate with the liquid storage chamber and the other end extending outward away from the side wall (211) and forming the liquid injection port (22).

8. The stent implantation transporter according to claim 5, wherein an end of the housing (21) remote from the exhaust hole (23) is open, and comprises an outer cover (28) formed as the second end surface (213), the outer cover (28) being detachably fixed to the side wall (211), the first end surface (212) further having a first core guide via hole (291) formed thereon, the second end surface (213) further having a second core guide via hole (292) formed thereon, the first core guide via hole (291) being disposed coaxially with the second core guide via hole (292).

9. The stent implantation transporter according to claim 1, wherein the housing (21) is further formed with a plurality of mounting lugs (3), the mounting lugs (3) being formed with mounting holes (31), the mounting holes (31) being used to fix the housing (21) into the operating handle by fasteners.

10. An implantation system comprising an operating handle and a stent implantation transporter as claimed in any one of claims 1-9, the operating handle interfacing with the outer end of the body, and the evacuation device being disposed internally of the operating handle.