CN109893314B - Silicone stent conveying device - Google Patents
Silicone stent conveying device Download PDFInfo
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- CN109893314B CN109893314B CN201910186715.3A CN201910186715A CN109893314B CN 109893314 B CN109893314 B CN 109893314B CN 201910186715 A CN201910186715 A CN 201910186715A CN 109893314 B CN109893314 B CN 109893314B
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Abstract
The invention discloses a silicone stent conveying device which comprises an outer conveying rod and an inner conveying rod, wherein the outer conveying rod comprises an outer sleeve with a tubular structure, a first through groove is formed in the side wall, close to the far end, of the outer sleeve, the first through groove extends to the end wall, which penetrates the far end, of the outer sleeve, so that a first accommodating groove extending in the axial direction is formed in the position, close to the far end, of the outer sleeve, and the length of the first accommodating groove is not less than that of a silicone stent to be conveyed; the conveying inner rod comprises an inner sleeve with a tubular structure, a through second open slot is formed in the side wall, close to the far end, of the inner sleeve, the second open slot extends to the end wall of the far end in the axial direction, a second containing groove extending in the axial direction is formed in the position, close to the far end, of the inner sleeve, and the length of the second containing groove is not less than that of the silicone support to be conveyed; the outer sleeve can be coaxially sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can rotate relatively around the axis. The conveying device is simple in structure and operation steps, and can effectively reduce the implantation risk of the silicone stent.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a silicone stent conveying device.
Background
The tracheal and bronchial stenosis caused by pathological changes such as inflammatory granuloma, scar, tumor and the like is easy to cause the problems of unsmooth breathing, insufficient blood supply and the like, and serious patients can endanger life. The implantation of the stent is one of the important means for treating the airway stenosis, and the silicone stent is the airway stent which is developed at the earliest, has the advantages of low price, good biocompatibility and the like, and is suitable for treating the stenosis and lesion of lumen parts such as trachea, bronchus and the like. However, due to the high tension of the silicone stent, the delivery process needs to be performed under the mediation of a hard bronchoscope, and meanwhile, the patient needs to be subjected to general anesthesia to ensure the ventilation function, so that the implantation of the silicone stent has a high risk, and the application range of the silicone stent is limited.
Disclosure of Invention
The invention provides a silicone stent conveying device, which solves the problems of difficulty in implanting a silicone stent and high risk in the prior art.
The invention aims to provide a silicone stent conveying device, which comprises an outer conveying rod and an inner conveying rod, wherein the outer conveying rod comprises an outer sleeve with a tubular structure, a first through groove is formed in the side wall, close to the far end, of the outer sleeve, the first through groove extends to the end wall, which penetrates the far end, of the outer sleeve, so that a first accommodating groove extending in the axial direction is formed in the position, close to the far end, of the outer sleeve, and the length of the first accommodating groove is not less than the length of a silicone stent to be conveyed; the conveying inner rod comprises an inner sleeve with a tubular structure, a through second open slot is formed in the side wall, close to the far end, of the inner sleeve, the second open slot axially extends to the end wall of the far end, so that a second containing groove axially extending is formed in the position, close to the far end, of the inner sleeve, and the length of the second containing groove is not less than that of a silicone support to be conveyed; the outer sleeve can be coaxially sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can rotate relatively around the axis.
Further, the radian of the first accommodating groove is 110 degrees to 180 degrees, and the radian of the second accommodating groove is 110 degrees to 180 degrees.
Furthermore, when the outer sleeve is sleeved outside the inner sleeve and the far end of the outer sleeve is aligned, the near end of the inner sleeve is located at the near end of the conveying outer rod.
Further, the conveying outer rod also comprises a first handle which is fixed on the side wall of the proximal end of the outer sleeve; the conveying inner rod further comprises a second handle, and the second handle is fixed on the side wall of the proximal end of the inner sleeve and is positioned at the proximal end of the conveying outer rod.
Further, the first handle is a double-lug structure symmetrically arranged on two sides of the outer sleeve; the second handle is a double-lug structure symmetrically arranged on two sides of the inner sleeve.
Furthermore, when the outer sleeve is sleeved outside the inner sleeve and the far ends of the outer sleeve are aligned, the near end wall of the first handle is abutted against the far end wall of the second handle, and a convex column is arranged on the far end wall of the first handle; a first groove and a second groove which are symmetrically arranged on two sides of the axis are formed in the end wall of the near end of the second handle; the first groove and the second groove are used for clamping the convex column, and when the conveying outer rod and the conveying inner rod rotate relatively to the convex column clamped in the first groove, the first open groove and the second open groove are overlapped; when the conveying outer rod and the conveying inner rod rotate relatively until the convex column is clamped in the second groove, the first accommodating groove and the second accommodating groove are oppositely arranged on two sides of the axis; or the like, or, alternatively,
a convex column is arranged on the end wall of the far end of the second handle; a first groove and a second groove which are symmetrically arranged at two sides of the axis are arranged on the end wall of the near end of the first handle; the first groove and the second groove are used for clamping the convex column, and when the conveying outer rod and the conveying inner rod rotate relatively to the convex column clamped in the first groove, the first open groove and the second open groove are overlapped; when the outer conveying rod and the inner conveying rod rotate relatively to the convex column clamped in the second groove, the first accommodating groove and the second accommodating groove are oppositely arranged on two sides of the axis.
Further, the outer and inner sleeves are made of a stainless steel material.
Further, the conveying device also comprises a pressure rod, and the pressure rod comprises a rod part with a rod-shaped structure; when the conveying outer rod and the conveying inner rod rotate relatively until the first open groove and the second open groove coincide, and the silicone support to be conveyed is arranged in the second accommodating groove, the rod part near end penetrates into the inner sleeve pipe cavity from far to near along the axial direction above the silicone support to be conveyed, and the side wall of the silicone support to be conveyed can be radially compressed according to the rod part far end.
Further, the pressure lever also comprises a handheld part, and the handheld part is connected to the far end of the rod part.
Further, the length of the rod part is larger than the lengths of the first accommodating groove and the second accommodating groove.
The conveying device provided by the invention can be used for conveying the silicone stent into the trachea of a human body, and has the advantages of simple structure, low cost and the like; the silicone stent is conveyed by adopting the conveying device, the operation steps are simple, and the implantation risk of the silicone stent can be effectively reduced.
Drawings
Fig. 1 is a schematic view of the assembly of a conveyor according to a first embodiment of the invention.
FIG. 2 is a schematic structural view of a silicone stent to be delivered arranged on a delivery device in a first embodiment of the invention.
FIG. 3 is a schematic structural view of a first embodiment of the present invention when a silicone stent to be delivered is received in the delivery device.
Fig. 4 is a front cross-sectional view of a first embodiment of the delivery device of the present invention.
Fig. 5 is a partially enlarged view of a position a in fig. 4.
FIG. 6 is a schematic structural view of a second embodiment of the present invention before a compression bar compresses a silicone stent to be delivered.
FIG. 7 is a schematic structural view of a second embodiment of the invention after the plunger compresses the silicone stent to be delivered.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In this specification, the term "distal" refers to the end that is distal from the operator during a surgical procedure, and "proximal" refers to the end that is proximal to the operator during a surgical procedure.
Referring to fig. 1 to 3, a first embodiment of the present invention provides a silicone stent delivery device, for delivering a silicone stent 10 to be delivered into a trachea of a patient, including a delivery outer rod 20 and a delivery inner rod 30, where the delivery outer rod 20 includes an outer sleeve 21 having a tubular structure, a first slot penetrating from the outside to the inner cavity is formed on a side wall of the outer sleeve 21 near a distal end, the first slot extends axially to penetrate through a distal end wall, so that a first receiving groove 211 extending axially is formed in a position of the outer sleeve 21 near the distal end, and a length of the first receiving groove 211 is not less than a length of the silicone stent 10 to be delivered; the delivery inner rod 30 comprises an inner sleeve 31 with a tubular structure, a second groove penetrating from the outside to the inner cavity is formed in the side wall of the inner sleeve 31 close to the distal end, the second groove axially extends to the end wall of the distal end, so that a second accommodating groove 311 extending axially is formed in the position of the inner sleeve 31 close to the distal end, and the length of the second accommodating groove 311 is not less than the length of the silicone stent 10 to be delivered; the inner diameter of the outer sleeve 21 is slightly larger than the outer diameter of the inner sleeve 31, so that the outer sleeve 21 can be coaxially sleeved outside the inner sleeve 31; the outer sleeve 21 and the inner sleeve 31 can rotate around the axis.
The conveying device provided by the embodiment can be used for conveying the silicone stent into the trachea of a human body, and has the advantages of simple structure, low cost and the like. Since silicone airway stents have different gauge sizes, it is often necessary to select or dimension the delivery device according to the size of the silicone stent to be delivered, and in addition, to select a delivery device of an appropriate size according to the patient's tracheal environment. Generally, for a relatively small size silicone stent, the inner sleeve inner diameter of the delivery device may be slightly larger than the silicone stent outer diameter; for the silicone stent with a relatively large size, a conveying device with an inner sleeve with an inner diameter smaller than the outer diameter of the silicone stent can be selected, and the silicone stent can be accommodated between the first accommodating groove and the second accommodating groove which are oppositely arranged along the axial direction only after the side wall of the silicone stent is compressed towards the radial direction. The conveying device with the radial size smaller than the outer diameter of the silicone stent is selected, so that the airway injury of a patient can be reduced, and the safety of an implantation operation is improved.
The steps of accommodating and conveying the silicone stent by adopting the conveying device provided by the embodiment are as follows: the outer sleeve 21 and the inner sleeve 31 are relatively rotated until the first open slot and the second open slot are superposed, and the silicone stent 10 to be conveyed is axially arranged in the second accommodating slot 311; when the outer diameter of the to-be-conveyed silicone stent 10 is smaller than the inner diameter of the inner sleeve 31, the outer sleeve 21 and the inner sleeve 31 are relatively rotated until the first containing groove 211 and the second containing groove 311 are oppositely arranged at two sides of the axis, the to-be-conveyed silicone stent 10 is fixed in the conveying device, when the outer diameter of the to-be-conveyed silicone stent 10 is larger than the inner diameter of the inner sleeve 31, the side wall of the to-be-conveyed silicone stent 10 is radially compressed, then the outer sleeve 21 and the inner sleeve 31 are relatively rotated, the first containing groove 211 and the second containing groove 311 are oppositely arranged at two sides of the axis, and the to-be-conveyed silicone stent 10 is fixed in the conveying device; after the silicone stent 10 to be delivered is delivered into the trachea of the patient through the delivery device, the outer sleeve 21 and the inner sleeve 31 are relatively rotated again until the first open slot and the second open slot are overlapped, and the delivery device is withdrawn, so that the release of the silicone stent 10 to be delivered can be completed.
The silicone stent is conveyed by the conveying device provided by the embodiment, the operation steps are simple, the silicone stent is easy to accommodate and convey, and the silicone stent implantation risk can be effectively reduced.
It should be noted that, in this embodiment, when the outer sleeve 21 is sleeved outside the inner sleeve 31 and the distal ends of the outer sleeve 21 and the inner sleeve 31 are aligned, the proximal end of the inner sleeve 31 penetrates to the proximal end of the delivery outer rod 20. According to the scheme, an operator can relatively rotate the outer sleeve and the inner sleeve from the proximal end of the silicone stent delivery device, for example, the outer delivery rod can be fixed from the proximal end, and then the inner delivery rod can be relatively rotated; or the inner conveying rod is fixed from the proximal end, and then the outer conveying rod is rotated relatively.
Further, the outer delivery rod 20 further comprises a first handle 22, and the first handle 22 is fixed on the side wall of the proximal end of the outer sleeve 21; the delivery inner rod 30 further comprises a second handle 32, and the second handle 32 is fixed on the proximal side wall of the inner sleeve 31 and is located at the proximal end of the delivery outer rod 20. This scheme is through setting up first handle and second handle for conveyor operation is more convenient, and the setting up of second handle makes the interior pole of carrying difficult follow carry the outer pole distal end to drop.
Preferably, when the outer sleeve 21 is disposed outside the inner sleeve 31 and aligned distally, the proximal end wall of the first handle 22 abuts against the distal end wall of the second handle 32.
The present invention is not particularly limited with respect to the structure of the first handle and the second handle. In this embodiment, the first handle 22 is a double-lug structure symmetrically disposed on two sides of the outer sleeve 21; the second handle 32 is a double-lug structure symmetrically arranged on two sides of the inner sleeve 31.
Referring to fig. 4 and 5, in the present embodiment, a boss 321 is disposed on the end wall of the distal end of the second handle 32; a first groove 221 and a second groove 222 which are symmetrically arranged on two sides of the axis are arranged on the end wall of the proximal end of the first handle 22, and the first groove 221 and the second groove 222 are matched with the convex column 321 and used for clamping the convex column 321; when the outer conveying rod 20 and the inner conveying rod 30 rotate relatively until the convex column 321 is clamped in the first groove 221, the first open groove and the second open groove are overlapped; when the outer conveying rod 20 and the inner conveying rod 30 rotate relatively until the convex column 321 is clamped in the second groove 222, the first accommodating groove 211 and the second accommodating groove 311 are oppositely arranged on two sides of the axis. The scheme can play a limiting role in the relative rotation of the conveying outer rod and the conveying inner rod, so that the conveying device can keep a relatively stable state in the accommodating and releasing process of the silicone stent, and the problems that the silicone stent is difficult to accommodate and is easy to fall off are avoided.
In an alternative embodiment of the invention, the convex column is arranged on the end wall of the proximal end of the first handle, and the first groove and the second groove are arranged on the end wall of the distal end of the second handle and symmetrically arranged on two sides of the axis; when the conveying outer rod and the conveying inner rod relatively rotate until the convex column is clamped in the first groove, the first open groove and the second open groove are overlapped; when the outer conveying rod and the inner conveying rod rotate relatively to the convex column clamped in the second groove, the first accommodating groove and the second accommodating groove are oppositely arranged on two sides of the axis.
Further, the arc of the first receiving groove 211 is 110 ° to 180 °, and the arc of the second receiving groove 311 is 110 ° to 180 °. According to the scheme, when the first accommodating groove and the second accommodating groove are overlapped, the silicone support to be conveyed can be smoothly arranged on the second accommodating groove, and when the first accommodating groove and the second accommodating groove are rotated to be oppositely arranged on two sides of the axis, the silicone support to be conveyed can be accommodated in the inner cavity, so that the silicone support is prevented from being exposed.
Further, the outer sleeve and the inner sleeve are made of rigid material, and preferably, in this embodiment, the outer sleeve 21 and the inner sleeve 22 are made of stainless steel material. This scheme can effectively avoid silicone support self tension to produce the destruction to conveyor to the better effect of acceping of the silicone support air flue of compression.
When the outer diameter of the silicone stent to be conveyed is larger than the inner diameter of the inner sleeve, an operator can manually compress the silicone stent to be conveyed along the radial direction in a sterile environment to enable the silicone stent to be accommodated between the first open groove and the second open groove; the silicone stent to be delivered may also be compressed by other auxiliary means.
Referring to fig. 6 and 7, a second embodiment of the present invention provides a silicone stent delivery device, which differs from the first embodiment only in that the delivery device further includes a press rod 40, the press rod 40 includes a rod portion 41 having a rod-like structure and a handheld portion 42 connected to one end of the rod portion 41, the outer delivery rod and the inner delivery rod rotate relatively until the first open slot and the second open slot coincide, and when the silicone stent 10 to be delivered is disposed in the second receiving slot, the rod portion 41 of the press rod 40 axially penetrates through the inner lumen of the inner sheath from the distal end to the proximal end through the upper portion of the silicone stent 10 to be delivered, and then the handheld portion 42 is pressed downward, so that the sidewall of the silicone stent 10 to be delivered can contract in the radial direction; after the silicone stent 10 to be delivered is accommodated between the first accommodating groove and the second accommodating groove by relatively rotating the outer conveying rod and the inner conveying rod, the pressing rod 40 is pulled out from the far end, and the silicone stent 10 to be delivered can be accommodated quickly and simply.
Further, the pressing rod 40 is made of a stainless steel material. The compression bar that this scheme provided has better rigidity, can avoid the compression bar to take place deformation under the tension effect of silicone support self.
Further, the length of the lever 41 is greater than the lengths of the first and second receiving grooves 211 and 311.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and all such modifications, equivalents and improvements that come within the spirit and scope of the invention are therefore intended to be included therein.
Claims (7)
1. The silicone stent conveying device is characterized by comprising an outer conveying rod and an inner conveying rod, wherein the outer conveying rod comprises an outer sleeve with a tubular structure, a first through groove is formed in the side wall, close to the far end, of the outer sleeve, the first through groove axially extends to the end wall, close to the far end, of the outer sleeve, so that a first accommodating groove axially extends is formed in the part, close to the far end, of the outer sleeve, and the length of the first accommodating groove is not less than that of a silicone stent to be conveyed; the conveying inner rod comprises an inner sleeve with a tubular structure, a penetrating second open slot is formed in the side wall, close to the far end, of the inner sleeve, the second open slot axially extends to the end wall, close to the far end, of the inner sleeve, a second containing groove axially extending is formed in the position, close to the far end, of the inner sleeve, and the length of the second containing groove is not less than that of the silicone stent to be conveyed; the radian of the first accommodating groove is 110-180 degrees, and the radian of the second accommodating groove is 110-180 degrees; the outer sleeve can be coaxially sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can relatively rotate around an axis;
the conveying outer rod further comprises a first handle, and the first handle is fixed on the side wall of the proximal end of the outer sleeve; the conveying inner rod further comprises a second handle, and the second handle is fixed on the side wall of the proximal end of the inner sleeve and is positioned at the proximal end of the conveying outer rod; when the outer sleeve is sleeved outside the inner sleeve and the far end of the outer sleeve is aligned, the near end wall of the first handle is abutted against the far end wall of the second handle, and the far end wall of the first handle is provided with a convex column; a first groove and a second groove which are symmetrically arranged at two sides of the axis are arranged on the end wall of the near end of the second handle; the first groove and the second groove are used for clamping the convex column, and when the conveying outer rod and the conveying inner rod rotate relatively to the convex column clamped in the first groove, the first open groove and the second open groove are overlapped; when the conveying outer rod and the conveying inner rod rotate relatively until the convex column is clamped in the second groove, the first accommodating groove and the second accommodating groove are oppositely arranged on two sides of the axis;
when the outer sleeve and the inner sleeve are relatively rotated until the first open slot and the second open slot are superposed, the silicone support to be conveyed is axially arranged in the second accommodating slot; compressing the side wall of the silicone stent to be conveyed, and then relatively rotating the outer sleeve and the inner sleeve to enable the first containing groove and the second containing groove to be oppositely arranged on two sides of the axis, wherein the silicone stent to be conveyed is fixed in the conveying device; after the silicone stent to be conveyed is conveyed into the trachea of a patient through the conveying device, the outer sleeve and the inner sleeve are relatively rotated again until the first open slot and the second open slot are coincided, and the conveying device is withdrawn, so that the release of the silicone stent to be conveyed can be completed.
2. The silicone stent delivery device of claim 1, wherein when the outer cannula is sleeved outside the inner cannula and the distal ends are aligned, the proximal end of the inner cannula is located at the proximal end of the delivery outer rod.
3. The silicone stent delivery device of claim 2, wherein the first handle is a double-lug structure symmetrically arranged on both sides of the outer sleeve; the second handle is a double-lug structure symmetrically arranged on two sides of the inner sleeve.
4. The silicone stent delivery device of claim 1, wherein the outer and inner sleeves are made of a stainless steel material.
5. The silicone stent delivery device of claim 1, further comprising a plunger comprising a rod portion having a rod-like structure; when the conveying outer rod and the conveying inner rod rotate relatively until the first open groove and the second open groove coincide, and the silicone support to be conveyed is arranged in the second accommodating groove, the rod part near end penetrates into the inner sleeve pipe cavity from far to near along the axial direction above the silicone support to be conveyed, and the side wall of the silicone support to be conveyed can be radially compressed according to the rod part far end.
6. The silicone stent delivery device of claim 5, wherein the plunger further comprises a handle portion connected at a distal end of the shaft portion.
7. The silicone stent delivery device according to claim 5, wherein the rod portion has a length greater than the first receiving groove and greater than the second receiving groove, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186715.3A CN109893314B (en) | 2019-03-13 | 2019-03-13 | Silicone stent conveying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186715.3A CN109893314B (en) | 2019-03-13 | 2019-03-13 | Silicone stent conveying device |
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| CN109893314A CN109893314A (en) | 2019-06-18 |
| CN109893314B true CN109893314B (en) | 2021-07-30 |
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| CN201910186715.3A Active CN109893314B (en) | 2019-03-13 | 2019-03-13 | Silicone stent conveying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112120838A (en) * | 2020-09-30 | 2020-12-25 | 南微医学科技股份有限公司 | Silicone stent, implantation system and manufacturing method |
| WO2023148739A1 (en) * | 2022-02-02 | 2023-08-10 | V-Flow 21 Ltd. | Delivery catheter and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040064147A1 (en) * | 2002-09-30 | 2004-04-01 | Struble Chester L. | Introducer system having a reclosable split sheath for lead replacement |
| AT501766A1 (en) * | 2005-01-25 | 2006-11-15 | Ami Gmbh | DEVICE FOR USE IN THE TREATMENT OF A HEMORRHOIDENEPROLAP |
| CN201949490U (en) * | 2010-12-10 | 2011-08-31 | 苏州天臣国际医疗科技有限公司 | Anal dilatation device |
| CN204246671U (en) * | 2014-11-28 | 2015-04-08 | 周立荣 | Rotary gynecological administration device |
| CN204995617U (en) * | 2015-07-10 | 2016-01-27 | 王洪武 | Silicone support pusher inner tube and silicone support pusher |
| CN206063534U (en) * | 2016-06-28 | 2017-04-05 | 天津市第四中心医院 | A kind of coronary intervention inducting device |
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Address after: 518116 New Zhongqiao Industrial Park, No. 3, Baolong Six Road, Baolong Street, Longgang District, Shenzhen City, Guangdong Province, Building A, 101, 201, 601B, Building C, 101, 201 and 401 (There are operating sites in Dolly Industrial Park, Building A, No. 9 Jinlong Road, Baolong Street, Longgang District, Shenzhen City). Applicant after: Shenzhen meimeimeichuangyi Medical Technology Co., Ltd Address before: 518116 New Zhongqiao Industrial Park, No. 3, Baolong Six Road, Baolong Street, Longgang District, Shenzhen City, Guangdong Province, Building A, 101, 201, 601B, Building C, 101, 201 and 401 (There are operating sites in Dolly Industrial Park, Building A, No. 9 Jinlong Road, Baolong Street, Longgang District, Shenzhen City). Applicant before: MEHOW INNOVATIVE Ltd. |
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