CN114177477B - Bending adjusting device, bending adjusting sheath tube and medical system - Google Patents
Bending adjusting device, bending adjusting sheath tube and medical system Download PDFInfo
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- CN114177477B CN114177477B CN202111421383.6A CN202111421383A CN114177477B CN 114177477 B CN114177477 B CN 114177477B CN 202111421383 A CN202111421383 A CN 202111421383A CN 114177477 B CN114177477 B CN 114177477B
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- 238000005452 bending Methods 0.000 title claims abstract description 61
- 210000002376 aorta thoracic Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 208000024172 Cardiovascular disease Diseases 0.000 description 2
- 239000002473 artificial blood Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003540 papillary muscle Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- 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
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
-
- 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
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/008—Strength or flexibility characteristics of the catheter tip
-
- 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
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
-
- 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
- A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
- A61M2025/0079—Separate user-activated means, e.g. guidewires, guide tubes, balloon catheters or sheaths, for sealing off an orifice, e.g. a lumen or side holes, of a catheter
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/008—Strength or flexibility characteristics of the catheter tip
- A61M2025/0081—Soft tip
-
- 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
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
- A61M2025/015—Details of the distal fixation of the movable mechanical means
-
- 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
- A61M2025/0177—Introducing, guiding, advancing, emplacing or holding catheters having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes
Abstract
The invention relates to the technical field of medical equipment, in particular to a bending adjusting device, a bending adjusting sheath tube and a medical system, wherein the bending adjusting device is characterized by comprising the following components: a first tube body; a second tube body; the outer diameter of the second pipe body is not smaller than that of the first pipe body, and a first type fixing device is arranged on the second pipe body; the first pipe body and the second pipe body are communicated to form a through channel. The movable body can slide along the first pipe body; the first type stay wire, one end of the first type stay wire is connected with the movable body, and the other end of the first type stay wire enters the through passage through the first type fixing device and extends out of the first pipe body along the through passage.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a bending adjusting device, a bending adjusting sheath tube and a medical system.
Background
With the improvement of the living standard of people, the incidence rate of cardiovascular diseases is gradually increased. For the treatment of cardiovascular diseases, the treatment process involves the protection of all important organs of the whole body, including brain, spinal cord, lung, liver and other organs, the operation is difficult, the complication occurrence rate is high, and the treatment effect is not ideal. The common treatment mode is that on the basis of the intervention treatment in the aortic cavity, a bracket technology is introduced into trunk surgery, namely, a self-expanding metal bracket is lined at the distal end of an artificial blood vessel, the trunk blood vessel with the bracket is implanted to the distal end of the thoracic descending aorta through an aortic arch incision or a proximal descending aorta incision in an anterograde way through a conveying system, and the proximal end of the trunk artificial blood vessel of the bracket is anastomosed with the reconstructed aortic arch after the release. When the delivery system passes through the aortic arch, the head of the delivery system needs to perform a bending motion to pass smoothly through the aortic arch because the aortic arch is arcuately curved.
Chinese patent application No. 201920119087.2 discloses a stent delivery system, characterized in that the system comprises a conveyor for delivering a stent and a pull wire, the conveyor is provided with a guide head at the front side of the stent and a lumen at the rear side of the stent, the pull wire has a body inner end releasably connected to the outer surface of the guide head and an outer end extending outside the patient, the pull wire between the two ends extends from the outside of the stent back into the lumen, but in such a stent delivery system the pull wire is always in a free state, and during operation, the free pull wire, especially in a tensioned state, runs the risk of damage to cardiac chordae, papillary muscles, leaflets and soft tissues in the heart.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a bending adjusting device, a bending adjusting sheath tube and a medical system, in particular to a bending adjusting sheath tube.
In one aspect, the present application provides a bending apparatus, including:
a first tube body;
a second tube body; the outer diameter of the second pipe body is not smaller than that of the first pipe body, and a first type fixing device is arranged on the second pipe body; the first pipe body and the second pipe body are communicated to form a through channel;
the movable body can slide along the first pipe body;
the first type stay wire, one end of the first type stay wire is connected with the movable body, and the other end of the first type stay wire enters the through passage through the first type fixing device and extends out of the first pipe body along the through passage.
Preferably, the bending device comprises a second type of stay wire, and the second type of stay wire is fixedly connected with the movable body.
Preferably, the bending device comprises a connector disposed between the first pipe body and the second pipe body, wherein the connector is combined with the first pipe body and the second pipe body to form the through channel.
Preferably, in the bending device, the connecting body is formed by a first cone, a first opening end of the first cone is connected with the second pipe body, and a second opening end of the first cone is connected with the first pipe body.
Preferably, the movable body is formed by a ring body, the ring body slides along the surface of the connecting body or the surface of the first tube body, at least one first type fixing point and at least one second type fixing point are arranged on the ring body, the first type fixing point is fixedly connected with the second type stay wire, the second type fixing point is fixedly connected with the first type stay wire, further, the ring body is in a circular ring or a conical shape, and further, the conical shape is matched with the connecting body.
Preferably, in the bending device, the connecting body is formed by a double cone, one end inner diameter of the double cone is matched with the inner diameter of the first pipe body, and the other end inner diameter of the double cone is matched with the inner diameter of the second pipe body.
Preferably, the movable body is formed by a third tube body, the third tube body is arranged inside the first tube body, and the third tube body is provided with a third type fixing point for fixing the first type stay wire and a fourth fixing point for fixing the second type stay wire.
Preferably, in the bending device, the end portion of the third pipe body is matched with the double cone, a guiding cone is arranged at one end of the third pipe body, which faces the double cone, and the inner diameter of the guiding cone is not larger than that of the second pipe body.
In another aspect, the present application further provides a bending-adjusting sheath, including a bending-adjusting device as described in any of the above.
In another aspect, the present application further provides a medical system, including a bending sheath according to any of the above, further including: a delivery system for pushing an implantable medical device, the buckle-regulating sheath being disposed within the delivery system.
Compared with the prior art, the beneficial effects of this application include at least: the first type of stay wire is manually tensioned, the movable body is driven to move towards the second pipe body in a tensioned state of the first type of stay wire until the movable body and the connecting body are in a relatively static state, and the tensioned first type of stay wire drives the second pipe body to bend so as to achieve bending adjustment.
Drawings
For a better understanding and to set forth of some embodiments of the present application, reference will now be made to the description of embodiments taken in conjunction with the accompanying drawings in which like reference numerals identify corresponding parts throughout.
Fig. 1 is a schematic structural diagram of a bending device according to a first embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a movable body in a bending device according to a first embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a bending device according to a second embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a movable body in a bending device according to a second embodiment of the present disclosure.
Detailed Description
The following description with reference to the accompanying drawings is provided to facilitate a comprehensive understanding of the various embodiments of the present application defined by the claims and their equivalents. These embodiments include various specific details for ease of understanding, but these are to be considered exemplary only. Accordingly, those skilled in the art will appreciate that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions will be omitted herein for brevity and clarity of description.
The "first class", "second class", "third class", "fourth class", etc. used in the following embodiments do not refer to different classes, but may be the same class, but are merely for the convenience of description.
Example 1
As shown in fig. 1, in one aspect, the present application provides a bending apparatus, including:
a first pipe body 11;
a second tube 12; the outer diameter of the second pipe body 12 is not smaller than the outer diameter of the first pipe body 11, and a first type fixing device 120 is arranged on the second pipe body 12; the first pipe body 11 and the second pipe body 12 are communicated to form a through channel;
a movable body 14 slidable along the first pipe body 11;
the first type of stay wire 16, one end of the first type of stay wire 16 is connected with the movable body, and the other end of the first type of stay wire enters the through passage through the first type of fixing device 120 and extends out of the first pipe body along the through passage.
The working principle of the bending adjusting device is as follows: the first type stay wire is manually tensioned, the first type stay wire drives the movable body to move towards the second pipe body under the condition that external tension acts on the first type stay wire until the movable body and the connecting body are in a relatively static state, and the first type stay wire is further pulled at the moment, so that the length of the first type stay wire between the movable body and the first type fixing device is smaller than the length of the movable body and the first type fixing device along the surface of the pipe body, namely, the first type stay wire drives the second pipe body to bend so as to realize bending adjustment.
As a further preferred embodiment, a second type of pull wire 15 is also included, said second type of pull wire 15 being fixedly connected to said movable body 14. After the bending device achieves the bending adjusting purpose, the second type of stay wire is manually tensioned, and the second type of stay wire drives the movable body to move towards the end part of the first pipe body, so that the movable body is evacuated from the bending device.
In the process of evacuating the movable body, the first type of stay wire can be cut off firstly, then the second type of stay wire is tensioned so that the movable body can be evacuated, and the cut first type of stay wire can be directly tensioned so as to realize the purpose of evacuating; the second type stay wire can be directly tensioned, the movable body can be directly withdrawn through the second type stay wire, and the movable body drives the first type stay wire to withdraw. The first type of stay wire and/or the second type of stay wire are/is prevented from being in a free state.
As a further preferred embodiment, the bending apparatus further includes a connecting body 13 disposed between the first pipe body 11 and the second pipe body 12, where the connecting body 13 is formed by a first cone, a first open end of the first cone is connected to the second pipe body, and a second open end of the first cone is connected to the first pipe body, and illustratively, a large round open end of the first cone is connected to the second pipe body. The small round opening end of the first cone is connected with the first pipe body.
Further, the pipe further comprises a connecting body 13 disposed between the first pipe 11 and the second pipe 12, and the connecting body 13 combines with the first pipe 11 and the second pipe 12 to form the through channel. The connecting body 13 enables the first pipe body 11 and the second pipe body 12 to form a moving track for the moving body to move stably.
Further, the method comprises the steps of: the movable body is formed by a ring body 14, the ring body 14 slides along the surface of the connecting body or the surface of the first tube body, at least one first type of fixing point 141 and at least one second type of fixing point are arranged on the ring body 14, as shown in fig. 2, the first type of fixing point 141 can be a plurality of fixing points, the second type of fixing point can also be a plurality of fixing points, the first type of fixing point 141 is fixedly connected with the second type of stay wire, and the second type of fixing point is fixedly connected with the first type of stay wire. When the first type of fixing point 141 has a plurality of fixing points, the corresponding second type of stay 15 has a plurality of stay 15, and a plurality of second type of stay 15 is provided, so that the ring 14 is provided with a plurality of stress points, and the plurality of stress points aim to realize smooth evacuation of the ring. When the second type of fixing points have a plurality of fixing points, the corresponding first type of stay wires 16 also have a plurality of first type of stay wires 16, and the plurality of first type of stay wires 16 are arranged to realize that the bending direction of the bending device is a plurality of, in other words, bending in a plurality of directions can be realized.
Illustratively, the second type of fixing points include a first fixing point 1421 of the first wire and a second fixing point 1422 of the first wire, and when the bending device is required to bend towards the first fixing point 1421 of the first wire, the bending of the first type of wire 16 matched with the first fixing point 1421 of the first wire can be realized only by tightening the first type of wire.
As a further preferred embodiment, the above-mentioned bending device, wherein the ring body 14 is a ring or a cone. Further, the taper mates with the connector. When the conical ring body moves towards the second pipe body 12 to a static state, the contact area between the ring body 14 and the second pipe body 12 is larger, the second pipe body 12 can stably fix the ring body 14, the ring body 14 is prevented from deflecting in a continuously stressed state, and the bending stability is further improved.
In a further preferred embodiment, the bending device comprises at least one through hole, wherein the first type of fixing device 120 comprises at least one through hole. The number of the through holes of the first type fixing device 120 is odd, and the purpose of providing the odd number of through holes is to realize that the second type stay wire is arranged inside the through channel. When a plurality of through holes are formed, the second type stay wire passes through each through hole and enters the inside of the through channel. In a state that the second type of stay wire is tensioned, the second type of stay wire drives the second pipe body 12 to bend slowly. The second tube 12 is prevented from being bent suddenly in a stressed state.
Example two
As shown in fig. 3, the present application further provides a bending apparatus, wherein,
a first pipe body 21;
a second tube 22; the outer diameter of the second pipe body 22 is not smaller than the outer diameter of the first pipe body, and a first type fixing device 220 is arranged on the second pipe body 22;
the connecting body 23 is arranged between the first pipe body and the second pipe body to form a penetrating channel; the connecting body 23 comprises a double cone, wherein one end inner diameter of the double cone is matched with the inner diameter of the first pipe body 21, and the other end inner diameter of the double cone is matched with the inner diameter of the second pipe body 22.
A movable body 24 movably contacting the connection body or the first pipe body; the first type stay wire 26 is disposed in the through passage by (passing through, by means of) the first type fixing device 220 and extends out of the first tube body along the through passage, and the second type stay wire 25 is connected with the movable body. The working principle of the bending adjusting device of the embodiment is as follows:
the first type of stay wire is manually tensioned, and the movable body is driven to move towards the second pipe body under the condition that external tension acts on the first type of stay wire until the movable body and the connecting body are in a relatively static state, and the first type of stay wire tensioned at the moment drives the second pipe body to bend so as to realize bending adjustment.
And manually tensioning a second type of stay wire, wherein the second type of stay wire drives the movable body to move towards the opening end part of the first pipe body so that the movable body is withdrawn from the bending device.
In the process of withdrawing the movable body, the second type stay wire can be directly tensioned, and the movable body is directly withdrawn through the second type stay wire, so that the first type stay wire and/or the second type stay wire are/is prevented from being in a free state.
Further, in the above-mentioned bending device, the movable body 24 is formed by a third tube body, and the third tube body is disposed inside the first tube body 21, and the third tube body is provided with a third fixing point matched with the first type of stay wire and a fourth fixing point matched with the second type of stay wire.
As shown in fig. 4, in the above-mentioned bending device, the end portion of the third pipe body 24 is matched with the double cone, the double cone includes a first cone 231 and a second cone 232, one end of the third pipe body facing the double cone is provided with a guiding cone, the inner diameter of the guiding cone is not larger than the inner diameter of the second pipe body, the guiding cone guides the third pipe body along the double cone to move towards the second pipe body, for example, schematically, one end of the third pipe body 24 facing the first cone 231 is provided with a guiding cone 240, the inner diameter of the guiding cone 240 is smaller than the inner diameter of the first cone 231, and during the movement of the third pipe body towards the double cone, the guiding cone 240 guides the third pipe body 24 to move towards the second pipe body 22 along the first cone 231.
In the above-mentioned bending device, the movable body is disposed inside the first tube body, and the first fixing device 220 may be a ring structure or a hook structure.
The length of the third pipe body is not smaller than the diameter of the first pipe body, and the purpose of ensuring the third pipe body to stably move along the first pipe body is achieved.
Example III
In another aspect, the present application further provides a bending apparatus, which includes a bending apparatus as described in any of the above embodiments.
Finally, the present application further provides a medical system, including the above-mentioned curved sheath tube, further including: a delivery system for pushing an implantable medical device, the delivery system extending through the buckle-regulating sheath.
The foregoing disclosure is only illustrative of some of the preferred embodiments of the present application and is not intended to limit the scope of the claims hereof, as persons of ordinary skill in the art will understand that all or part of the processes for accomplishing the foregoing embodiments may be practiced with equivalent changes which may be made by the claims herein and which fall within the scope of the invention.
Claims (12)
1. A bending apparatus, comprising:
a first tube body;
a second tube body; the outer diameter of the second pipe body is larger than that of the first pipe body, and a first type fixing device is arranged on the second pipe body; the first pipe body and the second pipe body are communicated to form a through channel;
the movable body can slide along the first pipe body;
one end of the first type stay wire is connected with the movable body, and the other end of the first type stay wire enters the through passage through the first type fixing device and extends out of the first pipe body along the through passage;
the first type of securing means comprises at least one through hole.
2. The bending device according to claim 1, comprising a second type of stay wire fixedly connected to the movable body.
3. The bending device according to claim 2, comprising a connector disposed between the first tube and the second tube, wherein the connector combines with the first tube and the second tube to form the through channel.
4. A bending apparatus according to claim 3, wherein the connector is formed by a first cone, a first open end of the first cone being connected to the second tube, and a second open end of the first cone being connected to the first tube.
5. A bending device according to claim 3, wherein the movable body is formed by a ring body, the ring body slides along the surface of the connecting body or the surface of the first tube body, at least one first type fixing point and at least one second type fixing point are arranged on the ring body, the first type fixing point is fixedly connected with the second type stay wire, the second type fixing point is fixedly connected with the first type stay wire, the ring body is circular or conical, and the conical shape is matched with the connecting body.
6. The bending apparatus according to claim 5, wherein said collar is tapered, said taper matching said connector.
7. The bending apparatus according to claim 5, wherein the ring is a circular ring.
8. A bending apparatus according to claim 3, wherein the connector is formed of a double cone, one end of which has an internal diameter matching the internal diameter of the first tube and the other end of which has an internal diameter matching the internal diameter of the second tube.
9. The bending apparatus according to claim 8, wherein the movable body is formed of a third tube body, the third tube body being internally disposed within the first tube body, the third tube body being provided with a third type of fixing point for fixing the first type of wire and a fourth type of fixing point for fixing the second type of wire.
10. The bending apparatus according to claim 9, wherein the end of the third tube body is matched with the double cone, and wherein a guide cone is provided at an end of the third tube body facing the double cone, the guide cone having an inner diameter not larger than an inner diameter of the second tube body.
11. A bending adjustment sheath comprising a bending adjustment device according to any one of claims 1 to 10.
12. A medical system comprising a bend-regulating sheath according to claim 11, further comprising: a delivery system for pushing an implantable medical device, the delivery system extending through the buckle-regulating sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111421383.6A CN114177477B (en) | 2021-11-26 | 2021-11-26 | Bending adjusting device, bending adjusting sheath tube and medical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111421383.6A CN114177477B (en) | 2021-11-26 | 2021-11-26 | Bending adjusting device, bending adjusting sheath tube and medical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114177477A CN114177477A (en) | 2022-03-15 |
| CN114177477B true CN114177477B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111421383.6A Active CN114177477B (en) | 2021-11-26 | 2021-11-26 | Bending adjusting device, bending adjusting sheath tube and medical system |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201505367U (en) * | 2009-09-16 | 2010-06-16 | 陆骏 | Head bending shape controllable guiding catheter for medical application |
| JP2010167101A (en) * | 2009-01-22 | 2010-08-05 | Sumitomo Bakelite Co Ltd | Catheter |
| CN102580225A (en) * | 2012-02-10 | 2012-07-18 | 先健科技(深圳)有限公司 | Adjustable bending sheath tube |
| CN103446655A (en) * | 2013-09-04 | 2013-12-18 | 杭州启明医疗器械有限公司 | Deflectable sheathing canal and delivery system with deflectable sheathing canal |
| CN204864477U (en) * | 2015-07-30 | 2015-12-16 | 湖南埃普特医疗器械有限公司 | Guide pipe |
| WO2017155892A1 (en) * | 2016-03-10 | 2017-09-14 | Medtronic Vascular Inc. | Steerable catheter with multiple bending radii via a steering mechanism with telescoping tubular components |
| CN109689147A (en) * | 2017-07-27 | 2019-04-26 | 先健科技(深圳)有限公司 | Adjustable bending sheath tube and medical instrument |
| CN208910469U (en) * | 2017-11-23 | 2019-05-31 | 上海慧达医疗器械有限公司 | The arteria renalis of trans-radial melts guiding catheter |
| CN109984823A (en) * | 2018-01-03 | 2019-07-09 | 杭州启明医疗器械股份有限公司 | It is a kind of to adjust curved sheath and the transportation system using the curved sheath of the tune |
| CN110101358A (en) * | 2019-05-08 | 2019-08-09 | 杭州堃博生物科技有限公司 | Adjustable bending sheath guard system |
| CN214209122U (en) * | 2020-10-30 | 2021-09-17 | 广东脉搏医疗科技有限公司 | Distal end adjustable bent sheath tube |
| CN216571130U (en) * | 2021-11-26 | 2022-05-24 | 上海以心医疗器械有限公司 | Bend adjusting device, bend adjusting sheath tube and medical system |
-
2021
- 2021-11-26 CN CN202111421383.6A patent/CN114177477B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010167101A (en) * | 2009-01-22 | 2010-08-05 | Sumitomo Bakelite Co Ltd | Catheter |
| CN201505367U (en) * | 2009-09-16 | 2010-06-16 | 陆骏 | Head bending shape controllable guiding catheter for medical application |
| CN102580225A (en) * | 2012-02-10 | 2012-07-18 | 先健科技(深圳)有限公司 | Adjustable bending sheath tube |
| CN103446655A (en) * | 2013-09-04 | 2013-12-18 | 杭州启明医疗器械有限公司 | Deflectable sheathing canal and delivery system with deflectable sheathing canal |
| CN204864477U (en) * | 2015-07-30 | 2015-12-16 | 湖南埃普特医疗器械有限公司 | Guide pipe |
| WO2017155892A1 (en) * | 2016-03-10 | 2017-09-14 | Medtronic Vascular Inc. | Steerable catheter with multiple bending radii via a steering mechanism with telescoping tubular components |
| CN109689147A (en) * | 2017-07-27 | 2019-04-26 | 先健科技(深圳)有限公司 | Adjustable bending sheath tube and medical instrument |
| CN208910469U (en) * | 2017-11-23 | 2019-05-31 | 上海慧达医疗器械有限公司 | The arteria renalis of trans-radial melts guiding catheter |
| CN109984823A (en) * | 2018-01-03 | 2019-07-09 | 杭州启明医疗器械股份有限公司 | It is a kind of to adjust curved sheath and the transportation system using the curved sheath of the tune |
| CN110101358A (en) * | 2019-05-08 | 2019-08-09 | 杭州堃博生物科技有限公司 | Adjustable bending sheath guard system |
| CN214209122U (en) * | 2020-10-30 | 2021-09-17 | 广东脉搏医疗科技有限公司 | Distal end adjustable bent sheath tube |
| CN216571130U (en) * | 2021-11-26 | 2022-05-24 | 上海以心医疗器械有限公司 | Bend adjusting device, bend adjusting sheath tube and medical system |
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| Publication number | Publication date |
|---|---|
| CN114177477A (en) | 2022-03-15 |
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