CN115444488A - Device for auxiliary forming of intracranial aneurysm neck - Google Patents

Device for auxiliary forming of intracranial aneurysm neck Download PDF

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Publication number
CN115444488A
CN115444488A CN202211222004.5A CN202211222004A CN115444488A CN 115444488 A CN115444488 A CN 115444488A CN 202211222004 A CN202211222004 A CN 202211222004A CN 115444488 A CN115444488 A CN 115444488A
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CN
China
Prior art keywords
developable
wire
nickel
handle
bracket
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Pending
Application number
CN202211222004.5A
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Chinese (zh)
Inventor
徐天宇
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Shanghai Boyichuang Medical Technology Co ltd
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Shanghai Boyichuang Medical Technology Co ltd
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Priority to CN202211222004.5A priority Critical patent/CN115444488A/en
Publication of CN115444488A publication Critical patent/CN115444488A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
    • A61B17/12118—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm for positioning in conjunction with a stent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/1214—Coils or wires
    • A61B17/12145—Coils or wires having a pre-set deployed three-dimensional shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/1214—Coils or wires
    • A61B17/1215—Coils or wires comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B2017/1205—Introduction devices

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Vascular Medicine (AREA)
  • Reproductive Health (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Neurosurgery (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention relates to a device for auxiliary forming of intracranial aneurysm neck, which comprises a tip, a push wire, a support, a winding pipe section, a hypotube and a handle, wherein a button connected with one end of the push wire is installed on the handle, the other end of the push wire sequentially penetrates through the handle, the hypotube, the winding pipe section and the support along the axial direction and then is fixedly connected with the tip, and the button can control the expansion and contraction degree of the support through the push wire; the bracket is woven by developable nickel-titanium wires, and the winding pipe section is formed by winding the developable nickel-titanium wires extending out of the bracket. The developable nickel-titanium wire braided bracket is adopted, so that the adaptability is good, and the transportation is easy; the bracket can be developed, so that an operator can conveniently identify the position of the bracket; the push button can be used for adjusting the opening amplitude of the stent, so that the stent can be used as an aneurysm auxiliary embolization device, and can be fully expanded at an aneurysm opening before the spring ring is placed in, so that the spring ring can be used for assisting the filling of the spring ring and playing a role in guiding blood flow.

Description

Device for auxiliary forming of intracranial aneurysm neck
Technical Field
The invention relates to the technical field of medical instruments, in particular to a device for auxiliary forming of intracranial aneurysm neck.
Background
Aneurysms are manifestations of localized or diffuse dilatation or bulging of the arterial wall due to lesions or lesions of the arterial wall. The treatment method of the aneurysm mainly comprises craniotomy and endovascular intervention treatment, wherein the craniotomy has high surgical difficulty in clamping and closing the neck of the aneurysm, and causes large trauma to a patient; the endovascular intervention treatment has small relative operation difficulty and small wound to patients, and the total prognosis is superior to the craniotomy. Therefore, endovascular intervention for intracranial aneurysms is becoming the preferred method of treating aneurysms. At present, coil rings are most commonly used for embolization of aneurysms in intravascular interventional therapy, but gaps are often left after the coil rings are filled, the aim of complete filling is difficult to achieve, and the aneurysms are easy to relapse.
Disclosure of Invention
The invention provides a device for auxiliary forming of an intracranial aneurysm neck, which aims to solve the technical problem.
In order to solve the technical problems, the invention provides a device for auxiliary forming of an intracranial aneurysm neck, which comprises a tip, a push wire, a support, a winding pipe section, a hypotube and a handle, wherein a button connected with one end of the push wire is installed on the handle, the other end of the push wire sequentially penetrates through the handle, the hypotube, the winding pipe section and the support along the axial direction and then is fixedly connected with the tip, and the button can control the expansion and contraction degree of the support through the push wire;
the support is formed by weaving developable nickel titanium wires, and the winding pipe section is formed by winding the developable nickel titanium wires extending out of the support.
Preferably, the diameter phi of the developable nickel titanium wire is 0.05mm to 0.1mm.
Preferably, the developable nickel-titanium wire has a wire diameter phi of 0.05mm, 0.055mm, 0.06mm, 0.065mm, 0.07mm, 0.075mm, 0.08mm, 0.085mm, 0.09mm, 0.095mm, or 0.1mm.
Preferably, the stent is woven by 8 strands, 10 strands or 12 strands of developable nickel-titanium wires.
Preferably, the tip has a curvature.
Preferably, the distal end and the proximal end of the stent are each mounted with a visualization ring.
Preferably, the coiled pipe section and the hypotube are connected through a connecting piece.
Preferably, the handle is provided with a scale at a position corresponding to the button.
Compared with the prior art, the device for auxiliary forming of the intracranial aneurysm neck provided by the invention has the following advantages:
1. the developable nickel-titanium wire braided stent has good compliance and easy transportation, and can reach a lesion position through a tortuous artery; has good memory function; the bracket can be developed, so that an operator can conveniently identify the position of the bracket; the invention has the advantages of good biocompatibility, no toxicity and the like, can be used as an aneurysm auxiliary embolization device, can be fully expanded at the aneurysm opening before the coil is placed in, can assist the coil to fill, and can also play a role in guiding blood flow;
2. when the stent is applied, the handle can be grasped by the palm, and the button is pushed and pulled by the thumb, so that the expansion and contraction of the stent and the control of specific amplitude are realized, the operation can be finished by one hand, and the use is convenient and fast;
3. the tip of the invention has a radian, which is beneficial to guiding and conveying the instrument in the blood vessel and simultaneously reduces the damage to the blood vessel.
Drawings
FIG. 1 is a schematic structural diagram of a device for auxiliary neck molding of intracranial aneurysm (stent-expanded state) according to an embodiment of the invention;
fig. 2 is a schematic structural diagram (stent contracted state) of a device for auxiliary molding of a neck of an intracranial aneurysm according to an embodiment of the present invention.
In the figure: 10-tip, 20-push wire, 30-bracket, 40-winding pipe section, 50-hypotube, 51-connecting piece, 60-handle, 61-button, 62-scale and 70-developing ring.
Detailed Description
In order to more thoroughly describe the technical scheme of the invention, the following specific examples are given to demonstrate the technical effects; it should be emphasized that these examples are intended to illustrate the invention and are not to be construed as limiting the scope of the invention.
The device for auxiliary forming of the neck of the intracranial aneurysm, as shown in fig. 1 and fig. 2, comprises a tip 10, a push wire 20, a stent 30, a winding pipe section 40, a hypotube 50 and a handle 60, wherein a button 61 connected with one end of the push wire 20 is installed on the handle 60, the other end of the push wire 20 sequentially penetrates through the handle 60, the hypotube 50, the winding pipe section 40 and the stent 30 along the axial direction and then is fixedly connected with the tip 10, and the button 61 can control the expansion and contraction degree of the stent 30 through the push wire 20; the support 30 is woven by using developable nickel-titanium wires, the winding pipe section 40 is formed by winding the developable nickel-titanium wires extending out of the support 30, namely the winding pipe section 40 is an extension of the support 30 and is formed by winding the same-strand developable nickel-titanium wires, and the problem of loose connection cannot be caused. The developable nickel-titanium wire braided stent 30 is adopted, has good compliance and easy transportation, and can reach a pathological change position through a tortuous artery; has good memory function; can be developed, and is convenient for an operator to identify the position of the bracket 30; the invention can be used as an aneurysm auxiliary embolism device, can fully expand at the aneurysm mouth before the spring ring is placed in, can assist the spring ring to fill, and can play a role in guiding blood flow. In addition, when the invention is applied, the handle 60 can be grasped by the palm, and the button 61 can be pushed and pulled back and forth by the thumb, so that the expansion and contraction of the bracket 30 and the control of specific amplitude can be realized, the operation can be completed by one hand, and the use is convenient and fast.
In some embodiments, the developable nickel titanium wire has a wire diameter of 0.05mm to 0.1mm, for example, the developable nickel titanium wire has a wire diameter of 0.05mm, 0.055mm, 0.06mm, 0.065mm, 0.07mm, 0.075mm, 0.08mm, 0.085mm, 0.09mm, 0.095mm, or 0.1mm. In some embodiments, the stent 30 is braided using 8, 10 or 12 strands of developable nickel titanium wire. The stent 30 of the invention is woven by matching developable nickel titanium wires with different wire diameters and strand numbers, can smoothly pass through 0.021 'and 0.017' microcatheters, and has wide application range.
In some embodiments, with continued reference to fig. 1 and 2, the tip 10 has a curvature, i.e., the tip 10 is angled from the axial direction of the stent 30, to facilitate guided delivery of the device in the vessel while reducing trauma to the vessel.
In some embodiments, with continued reference to fig. 1 and 2, the distal and proximal ends of the support frame 30 are provided with visualization rings 70 to further indicate the position of the support frame 30 for the operator.
In some embodiments, with continued reference to fig. 1 and fig. 2, the winding tube 40 is connected to the hypotube 50 through a connector 51, and the other end of the hypotube 50 can be embedded inside the handle 60, so as to ensure that the connection of the components is firm and the operation is flexible.
In some embodiments, with continued reference to fig. 1 and 2, the handle 60 is provided with a scale 62 at a position corresponding to the button 61 for indicating the advancing distance of the push wire 20, i.e. the expanding degree of the stent 30, and specifically, when the button 61 is retracted to the rearmost end, the stent 30 is fully expanded (as shown in fig. 1); when the button 61 is advanced to the most front end, the bracket 30 is retracted (as shown in fig. 2), and the state of the bracket 30 can be visually known according to the corresponding position of the button 61 on the scale 62.
In addition, it should be noted that the interventional therapy device provided by the present invention can be used alone, for example, for vasospasm, in addition to being used in conjunction with a coil to achieve aneurysm embolization, and can rapidly restore blood flow.
In conclusion, the device for auxiliary molding of intracranial aneurysm neck provided by the invention comprises a tip 10, a push wire 20, a support 30, a winding pipe section 40, a hypotube 50 and a handle 60, wherein a button 61 connected with one end of the push wire 20 is installed on the handle 60, the other end of the push wire 20 sequentially penetrates through the handle 60, the hypotube 50, the winding pipe section 40 and the support 30 along the axial direction and then is fixedly connected with the tip 10, and the button 61 can control the expansion and contraction degree of the support 30 through the push wire 20; the support 30 is woven by using developable nickel-titanium wires, and the winding pipe section 40 is formed by winding the developable nickel-titanium wires extending from the support 30. The developable nickel-titanium wire braided stent 30 is adopted, has good compliance and easy transportation, and can reach a pathological change position through a tortuous artery; has good memory function; the position of the bracket 30 can be conveniently identified by an operator through developing; the invention can be used as an aneurysm auxiliary embolism device, can fully expand at the aneurysm mouth before the spring ring is placed in, can assist the spring ring to fill, and can play a role in guiding blood flow. In addition, when the invention is applied, the handle 60 can be grasped by the palm, and the button 61 is pushed and pulled by the thumb to realize the control of the expansion and contraction and the specific amplitude of the bracket 30, so that the operation can be completed by one hand, and the use is convenient.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A device for auxiliary forming of an intracranial aneurysm neck is characterized by comprising a tip, a push wire, a support, a winding pipe section, a hypotube and a handle, wherein a button connected with one end of the push wire is installed on the handle, the other end of the push wire sequentially penetrates through the handle, the hypotube, the winding pipe section and the support along the axial direction and then is fixedly connected with the tip, and the button can control the expansion and contraction degree of the support through the push wire;
the bracket is woven by developable nickel-titanium wires, and the winding pipe section is formed by winding the developable nickel-titanium wires extending out of the bracket.
2. The device for assisted molding of intracranial aneurysm neck as in claim 1, wherein the developable nitinol wire has a wire diameter Φ of 0.05mm to 0.1mm.
3. The device for intracranial aneurysm neck assist molding according to claim 2, wherein the developable nickel-titanium wire has a wire diameter Φ of 0.05mm, 0.055mm, 0.06mm, 0.065mm, 0.07mm, 0.075mm, 0.08mm, 0.085mm, 0.09mm, 0.095mm, or 0.1mm.
4. The device for assisted molding of intracranial aneurysm neck as in claim 1, wherein the stent is braided from 8, 10 or 12 strands of developable nickel-titanium wire.
5. The device for intracranial aneurysm neck assist molding as in claim 1, wherein the tip has a curvature.
6. The device for intracranial aneurysm neck assist in molding as in claim 1, wherein the stent has visualization rings mounted on both the distal and proximal ends of the stent.
7. The device for assisted molding of a neck of an intracranial aneurysm as in claim 1, wherein the coil section and the hypotube are connected by a connector.
8. The device for assisted molding of intracranial aneurysm neck as in claim 1, wherein the handle is provided with a scale at a position corresponding to the button.
CN202211222004.5A 2022-10-08 2022-10-08 Device for auxiliary forming of intracranial aneurysm neck Pending CN115444488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211222004.5A CN115444488A (en) 2022-10-08 2022-10-08 Device for auxiliary forming of intracranial aneurysm neck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211222004.5A CN115444488A (en) 2022-10-08 2022-10-08 Device for auxiliary forming of intracranial aneurysm neck

Publications (1)

Publication Number Publication Date
CN115444488A true CN115444488A (en) 2022-12-09

Family

ID=84308125

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211222004.5A Pending CN115444488A (en) 2022-10-08 2022-10-08 Device for auxiliary forming of intracranial aneurysm neck

Country Status (1)

Country Link
CN (1) CN115444488A (en)

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