CN115253016A - Catheter sheath capable of being adjusted and controlled bidirectionally - Google Patents
Catheter sheath capable of being adjusted and controlled bidirectionally Download PDFInfo
- Publication number
- CN115253016A CN115253016A CN202210811417.0A CN202210811417A CN115253016A CN 115253016 A CN115253016 A CN 115253016A CN 202210811417 A CN202210811417 A CN 202210811417A CN 115253016 A CN115253016 A CN 115253016A
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- Prior art keywords
- sheath
- catheter
- head
- separated
- catheter sheath
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Links
- 230000001276 controlling effect Effects 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000003146 anticoagulant agent Substances 0.000 claims description 3
- 229940127219 anticoagulant drug Drugs 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0054—Catheters; Hollow probes characterised by structural features with regions for increasing flexibility
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0127—Magnetic means; Magnetic markers
Abstract
The invention discloses a catheter sheath capable of being regulated and controlled in two directions, which comprises: a catheter sheath body, one end of which is provided with a port assembly; at least one separated sheath body, wherein a positioning component is arranged between the separated sheath body and one end of the catheter sheath main body far away from the interface component; the sheath head is provided with an external adjusting and controlling component between the sheath head and one end of the separated sheath body far away from the catheter sheath main body; wherein the outer regulating component can regulate the deflection and the deflection angle of the sheath head relative to the separated sheath body; wherein, be provided with interior regulation and control subassembly in the sheath head, interior regulation and control subassembly can finely tune the deviation and the declination of stretching into the pipe in the pipe sheath main part.
Description
Technical Field
The invention relates to the technical field of catheter sheaths, in particular to a catheter sheath capable of being adjusted and controlled in a two-way mode.
Background
The pipe sheath often includes expansion tube and sheath pipe, arranges the sheath pipe in the expansion tube, and the two inserts the blood vessel together, later extract behind the expansion tube can lead the pipe through the pipe sheath, reduce the damage to blood vessel when the business turn over of pipe of being convenient for, but current pipe sheath structure is comparatively simple, and its functionality is also poor, can't realize the effective regulation to the pipe to can drive the pipe sheath when the pipe business turn over and slide, the travelling comfort is general.
Therefore, there is a need to provide a catheter sheath that can be adjusted in two directions to solve the above problems.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a bi-directionally steerable catheter sheath, comprising:
a catheter sheath body, one end of which is provided with a port assembly;
the separated sheath body is provided with a positioning assembly between the separated sheath body and one end of the catheter sheath body far away from the interface assembly; and
an external adjusting and controlling component is arranged between the sheath head and one end of the separated sheath body far away from the catheter sheath main body;
wherein the outer regulating component can regulate the deflection and the deflection angle of the sheath head relative to the separated sheath body;
the sheath head is internally provided with an inner regulating and controlling component which can finely regulate the deviation and deflection angle of a catheter extending into the catheter sheath body.
Further, as a preferred option, the positioning assembly includes a first electromagnet, a second electromagnet and at least two positioning arc sheets symmetrically arranged, wherein the first electromagnet is embedded in the catheter sheath main body, the second electromagnet is embedded in the separated sheath body, and the positioning arc sheets are connected between the catheter sheath main body and the separated sheath body.
Preferably, the catheter sheath further comprises a first sealing membrane of an annular structure, which is made of flexible material and is connected between the separated sheath body and the catheter sheath main body.
Further, as the preferred, still include at least one spacing section of thick bamboo, a spacing section of thick bamboo is fixed in the catheter sheath main part and keeps away from the one end of interface subassembly, slide in the spacing section of thick bamboo and be provided with T type gag lever post, and under initial condition, electro-magnet one and electro-magnet two control gag lever post slide to the rightmost end of a spacing section of thick bamboo, and the location arc piece is the arc outward along radial this moment.
Further, as preferred, outer regulation and control subassembly includes that electro-magnet three, electro-magnet four and at least two are the flexible post of elasticity that the symmetry set up, wherein electro-magnet three imbeds in the disconnect-type sheath, and electro-magnet four imbeds in the sheath head, flexible post that stretches out and draws back is connected between disconnect-type sheath and sheath head.
Preferably, the sheath further comprises a second sealing membrane of an annular structure, which is made of a flexible material and is connected between the sheath head and the separated sheath body.
Further, as preferred, interior regulation and control subassembly includes outer spacing ring, and it is fixed to be embedded in the tip of sheath head inboard, the one side that outer spacing ring is close to the pipe sheath main part is provided with axial slip set up in the inside grip ring of sheath head, the outer wall of grip ring is provided with flexible ring, and the inner wall is fixed with the ring pad, the grip ring adopts spring coupling to have interior spacing ring near one side of pipe sheath main part, interior spacing ring is fixed in the inboard of sheath head, and initial stage, and the grip ring supports under spring drive and leans on in the side of outer spacing ring.
Preferably, the clamping ring is symmetrically connected with rope bodies, the other ends of the rope bodies are connected to the output end of the magnetostrictive device, and the magnetostrictive device is horizontally embedded in the inner wall of the sheath head.
Further, preferably, the sheath is provided with a developing ring.
Further, preferably, the catheter sheath main body, the split sheath body and the inner wall and/or the outer wall of the sheath body are/is provided with an anticoagulant coating.
Compared with the prior art, the invention provides a catheter sheath capable of being regulated and controlled in two directions, which has the following beneficial effects:
in the embodiment of the invention, the outer adjusting and controlling component is arranged and can adjust the deflection and deflection angle of the sheath head, so that the catheter sheath main body, the separated sheath body and the sheath head can be more smoothly inserted into a patient, then the positioning component can be used for positioning the catheter sheath main body to prevent the catheter sheath main body from shaking and reduce the uncomfortable feeling of the patient, and finally, when the catheter is inserted, the inner adjusting and controlling component can be used for fine adjusting the deflection and deflection angle of the catheter again after the catheter accurately reaches the designated position under the guidance of the catheter sheath main body, the separated sheath body and the sheath head, so that the flexibility of the catheter is improved, and the catheter can work in a designated range more accurately.
Drawings
FIG. 1 is a schematic view of an overall structure of a catheter sheath that can be adjusted and controlled bidirectionally;
FIG. 2 is a schematic structural diagram of a positioning assembly and an external control assembly in a catheter sheath that can be bidirectionally controlled;
FIG. 3 is a schematic structural view of an inner control assembly of a catheter sheath that can be bi-directionally controlled;
in the figure: 1. a catheter sheath body; 2. an interface component; 3. a separate sheath; 4. a sheath head; 5. a positioning assembly; 6. an external regulating component; 7. a through hole; 8. an internal regulatory component; 51. sealing a film I; 52. a first electromagnet; 53. an electromagnet II; 54. positioning the arc sheet; 55. a limiting cylinder; 56. a limiting rod; 61. sealing a second film; 62. an electromagnet III; 63. an electromagnet IV; 64. an elastic telescopic column; 81. an outer limit ring; 82. a clamp ring; 83. a ring pad; 84. a spring; 85. an inner limiting ring; 86. a rope body; 87. a magnetostrictive element.
Detailed Description
Referring to fig. 1 to 3, the present invention provides a catheter sheath capable of bidirectional adjustment, comprising:
a catheter sheath body 1, one end of which is provided with a connector component 2;
at least one separated sheath body 3, and a positioning component 5 is arranged between the sheath body 1 and one end far away from the interface component 2; and
an outer adjusting and controlling assembly 6 is arranged between the sheath head 4 and one end of the separated sheath body 3 far away from the catheter sheath main body 1;
wherein, the outer regulating component 6 can regulate the deviation and the deviation angle of the sheath head 4 relative to the separated sheath body 3;
wherein, be provided with interior regulation and control subassembly 8 in the sheath head 4, interior regulation and control subassembly 8 can finely tune the deviation and the declination of stretching into the pipe in pipe sheath main part 1.
That is to say, in this embodiment, can adjust sheath head 4 on the one hand, on the other hand the pipe can be under the direction of pipe sheath main part, disconnect-type sheath body and sheath head accurate arrival to the assigned position after by interior regulation and control subassembly adjust, and then realize the two-way regulation and control to the pipe, improved the accuracy of its navigation.
In this embodiment, as shown in fig. 2, the positioning assembly 5 includes a first electromagnet 51, a second electromagnet 53, and at least two positioning arc sheets 54 symmetrically disposed, wherein the first electromagnet 51 is embedded in the sheath body 1, the second electromagnet 53 is embedded in the separated sheath body 3, and the positioning arc sheets are connected between the sheath body and the separated sheath body 3.
The number of the positioning arc sheets is at least two, the device can be positioned in the blood vessel through the two positioning arc sheets, and the positioning mode is point-contact extrusion positioning;
in an optional embodiment, the number of the positioning arc pieces is three, so that three-point positioning is realized, and certainly, the number of the positioning arc pieces can be multiple, so that the positioning stability can be improved;
however, it should be noted that when the number of the positioning arc pieces is too large, the overall manufacturing cost is increased, and clogging is easily caused;
in order to improve the comfort of the patient, in the initial stage, the positioning arc sheet is accommodated between the catheter sheath main body 1 and the separated sheath body;
the outer surface of the positioning arc sheet does not protrude out of the outer surface of the catheter sheath main body 1 and does not protrude out of the outer surface of the separated sheath body;
furthermore, the outer diameters of the catheter sheath main body 1, the split sheath body 3 and the sheath head 4 are the same;
further, the end of the sheath head 4 is bullet-shaped.
In a preferred embodiment, the sheath further comprises a first sealing membrane 51 of a ring structure, which is made of a flexible material and is connected between the split sheath 3 and the catheter sheath body 1.
In a preferred embodiment, the catheter sheath further comprises at least one limiting barrel 55, the limiting barrel 55 is fixed at one end of the catheter sheath main body 1 away from the hub assembly 2, a T-shaped limiting rod 56 is slidably arranged in the limiting barrel 55, and in an initial state, the first electromagnet and the second electromagnet control the limiting rod 56 to slide to the rightmost end of the limiting barrel, and at this time, the positioning arc piece is arc-shaped outwards in the radial direction.
In this case, when the space between the split sheath body 3 and the catheter sheath body 1 is retracted, the positioning arc pieces can project outwardly rather than inwardly as the case may be.
In this embodiment, as shown in fig. 2, the outer adjusting and controlling assembly 6 includes three electromagnets 62, four electromagnets 63, and at least two elastic telescopic pillars 64 symmetrically disposed, wherein the three electromagnets 62 are embedded in the separated sheath 3, the four electromagnets 63 are embedded in the sheath head 4, and the elastic telescopic pillars 64 are connected between the separated sheath 3 and the sheath head 4.
Similarly, the number of the elastic telescopic columns 64 is at least two, the sheath head 4 can be deflected in one direction or two directions through the two elastic telescopic columns 64, and in the implementation, one of the elastic telescopic columns 64 is contracted, and the other elastic telescopic column 65 is extended;
in an alternative embodiment, the number of the elastic telescopic columns can be multiple, so that the multi-directional deflection of the elastic telescopic columns can be improved;
however, it should be noted that when the number of the elastic telescopic columns is too large, the overall manufacturing cost is increased, and the adjustment is also not easy.
In a preferred embodiment, the number of the elastic telescopic columns is four.
As a preferred embodiment, the sheath further includes a second sealing film 61 of a ring structure, which is made of a flexible material and is connected between the sheath head and the separable sheath 3.
In this embodiment, as shown in fig. 3, the inner adjusting and controlling component 8 includes an outer limiting ring 81 fixedly embedded inside the end portion of the sheath head 4, a clamping ring 82 axially slidably disposed inside the sheath head 4 is disposed on one side of the outer limiting ring 81 close to the catheter sheath body 1, a flexible ring is disposed on an outer wall of the clamping ring 82, a ring pad 83 is fixed on an inner wall of the clamping ring, an inner limiting ring 85 is connected to one side of the clamping ring 82 close to the catheter sheath body 1 by a spring 84, the inner limiting ring 85 is fixed on the inner side of the sheath head 4, and in an initial stage, the clamping ring 82 abuts against a side surface of the outer limiting ring 81 under the driving of the spring.
Furthermore, the holding ring 82 is symmetrically connected with ropes 86, the other end of the rope 86 is connected to the output end of a magnetostrictive device 87, and the magnetostrictive device 87 is horizontally embedded in the inner wall of the sheath head 4.
It should be explained that the ring pad 83 can tightly surround the conduit, and the ring pad 83 can be inclined by pulling one of the ropes, so that the deviation and the deflection angle of the conduit can be adjusted.
In a preferred embodiment, the sheath 4 is provided with a developing ring.
In a preferred embodiment, the catheter sheath body 1, the split sheath body 3 and the sheath body 4 are provided with anticoagulant coatings on the inner wall and/or the outer wall thereof.
When the catheter is withdrawn and put into the catheter, the catheter can accurately reach the designated position under the guidance of the catheter sheath main body, the separated sheath body and the sheath head, and then the deviation and the deviation angle of the catheter can be finely adjusted again by the inner adjusting and controlling component 8, so that the flexibility of the catheter is improved, and the catheter can work in the designated range more accurately.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. A catheter sheath capable of being adjusted and controlled bidirectionally is characterized in that: the method comprises the following steps:
a catheter sheath body (1), one end of which is provided with a connector component (2);
at least one separated sheath body (3), and a positioning component (5) is arranged between the separated sheath body and one end of the catheter sheath main body (1) far away from the interface component (2); and
an outer adjusting and controlling assembly (6) is arranged between the sheath head (4) and one end of the separated sheath body (3) far away from the catheter sheath main body (1);
wherein the outer regulating component (6) can regulate the deviation and the deviation angle of the sheath head (4) relative to the separated sheath body (3);
wherein, be provided with interior regulation and control subassembly (8) in sheath head (4), interior regulation and control subassembly (8) can finely tune the deviation and the declination of stretching into the pipe in pipe sheath main part (1).
2. The bidirectionally adjustable catheter sheath of claim 1, wherein: the positioning assembly (5) comprises a first electromagnet (51), a second electromagnet (53) and at least two positioning arc sheets (54) which are symmetrically arranged, wherein the first electromagnet (51) is embedded into the catheter sheath main body (1), the second electromagnet (53) is embedded into the separated sheath body (3), and the positioning arc sheets are connected between the catheter sheath main body and the separated sheath body (3).
3. The bidirectionally adjustable catheter sheath of claim 2, wherein: the catheter sheath is characterized by further comprising a first sealing membrane (51) of an annular structure, wherein the first sealing membrane is made of flexible materials and is connected between the separated sheath body (3) and the catheter sheath main body (1).
4. The bidirectionally adjustable catheter sheath of claim 2, wherein: the catheter sheath is characterized by further comprising at least one limiting cylinder (55), wherein the limiting cylinder (55) is fixed at one end, far away from the interface component (2), of the catheter sheath main body (1), a T-shaped limiting rod (56) is arranged in the limiting cylinder (55) in a sliding mode, in an initial state, the limiting rod (56) is controlled by the first electromagnet and the second electromagnet to slide to the rightmost end of the limiting cylinder, and at the moment, the positioning arc piece is in an arc shape outwards along the radial direction.
5. The bidirectionally adjustable introducer sheath of claim 1, wherein: outer regulation and control subassembly (6) are the flexible post (64) of elasticity that the symmetry set up including three (62), four (63) of electro-magnet and at least two, wherein three (62) of electro-magnet are embedded in disconnect-type sheath body (3), and four (63) of electro-magnet are embedded in sheath head (4), flexible post (64) are connected between disconnect-type sheath body (3) and sheath head (4).
6. The bidirectionally adjustable catheter sheath of claim 5, wherein: the sheath is characterized by further comprising a second sealing membrane (61) of an annular structure, wherein the second sealing membrane is made of flexible materials and is connected between the sheath head and the separated sheath body (3).
7. The bidirectionally adjustable introducer sheath of claim 1, wherein: interior regulation and control subassembly (8) include outer spacing ring (81), and it is fixed to be embedded in the tip of sheath head (4) inboard, one side that outer spacing ring (81) are close to pipe sheath main part (1) is provided with axial sliding set up in the inboard grip ring (82) of sheath head (4), the outer wall of grip ring (82) is provided with flexible ring, and the inner wall is fixed with the ring pad (83), one side that grip ring (82) are close to pipe sheath main part (1) adopts spring (84) to be connected with interior spacing ring (85), interior spacing ring (85) are fixed in the inboard of sheath head (4), and initial stage, and grip ring (82) lean on in the side of outer spacing ring (81) under spring drive.
8. The bidirectionally adjustable catheter sheath of claim 7, wherein: the clamping ring (82) is symmetrically connected with rope bodies (86), the other ends of the rope bodies (86) are connected to the output end of a magnetostrictive device (87), and the magnetostrictive device (87) is horizontally embedded into the inner wall of the sheath head (4).
9. The bidirectionally adjustable introducer sheath of claim 7, wherein: and the sheath body (4) is provided with a developing ring.
10. The bidirectionally adjustable catheter sheath of claim 8, wherein: and anticoagulant coatings are arranged on the inner walls and/or the outer walls of the catheter sheath main body (1), the separated sheath body (3) and the sheath body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210811417.0A CN115253016B (en) | 2022-07-11 | 2022-07-11 | Catheter sheath capable of being regulated and controlled bidirectionally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210811417.0A CN115253016B (en) | 2022-07-11 | 2022-07-11 | Catheter sheath capable of being regulated and controlled bidirectionally |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115253016A true CN115253016A (en) | 2022-11-01 |
| CN115253016B CN115253016B (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210811417.0A Active CN115253016B (en) | 2022-07-11 | 2022-07-11 | Catheter sheath capable of being regulated and controlled bidirectionally |
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| Country | Link |
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| CN (1) | CN115253016B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050234436A1 (en) * | 1999-07-14 | 2005-10-20 | Cardiofocus, Inc. | Methods of cardiac ablation in the vicinity of the right inferior pulmonary vein |
| CN103079629A (en) * | 2010-08-13 | 2013-05-01 | 导管治疗有限公司 | A catheter assembly with deflection size adjustability |
| CN103282074A (en) * | 2010-11-03 | 2013-09-04 | 比尔卡地亚股份有限公司 | Steerable endoluminal devices and methods |
| CN210673430U (en) * | 2018-09-14 | 2020-06-05 | 杭州堃博生物科技有限公司 | Bendable radio frequency ablation catheter |
| CN114555170A (en) * | 2019-10-01 | 2022-05-27 | 清流科技有限公司 | Introducer sheath and method of introducing the same |
| CN114642522A (en) * | 2020-12-18 | 2022-06-21 | 深圳市健心医疗科技有限公司 | Conveying device and conveying system |
-
2022
- 2022-07-11 CN CN202210811417.0A patent/CN115253016B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050234436A1 (en) * | 1999-07-14 | 2005-10-20 | Cardiofocus, Inc. | Methods of cardiac ablation in the vicinity of the right inferior pulmonary vein |
| CN103079629A (en) * | 2010-08-13 | 2013-05-01 | 导管治疗有限公司 | A catheter assembly with deflection size adjustability |
| CN103282074A (en) * | 2010-11-03 | 2013-09-04 | 比尔卡地亚股份有限公司 | Steerable endoluminal devices and methods |
| CN210673430U (en) * | 2018-09-14 | 2020-06-05 | 杭州堃博生物科技有限公司 | Bendable radio frequency ablation catheter |
| CN114555170A (en) * | 2019-10-01 | 2022-05-27 | 清流科技有限公司 | Introducer sheath and method of introducing the same |
| CN114642522A (en) * | 2020-12-18 | 2022-06-21 | 深圳市健心医疗科技有限公司 | Conveying device and conveying system |
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| Publication number | Publication date |
|---|---|
| CN115253016B (en) | 2024-02-06 |
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