CN209932955U - Nerve medium-entering micro-guide wire single-pole electrocoagulation instrument - Google Patents
Nerve medium-entering micro-guide wire single-pole electrocoagulation instrument Download PDFInfo
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- CN209932955U CN209932955U CN201821560327.4U CN201821560327U CN209932955U CN 209932955 U CN209932955 U CN 209932955U CN 201821560327 U CN201821560327 U CN 201821560327U CN 209932955 U CN209932955 U CN 209932955U
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Abstract
The utility model relates to a nerve intervention micro-guide wire monopole electric coagulation instrument, which comprises a reducing mandrel, a spring electric coagulation head, an insulating protective layer and a hydrophilic coating; the reducing mandrel consists of a near-end linear type constant diameter section, a streamline type reducing section, a far-end linear type constant diameter section, a conical spring sleeve joint part and a nut-shaped welding point; the side surface of the conical spring sleeving part is sleeved with a spring electrocoagulation head; the insulating protective layer covers on the reducing mandrel, and the hydrophilic coating is coated on the insulating protective layer. Its advantages are: the diameter-variable mandrel and the spring electrocoagulation head have the characteristics of electric conduction, accuracy and small action range of the electrocoagulation device, and have the characteristics of flexibility and torsion control of a micro guide wire; the insulating protective layer isolates the other parts of the micro-guide wire monopolar electrocoagulation except the electrocoagulation head from the blood vessel wall and blood, so that the normal structure of a human body is prevented from being damaged, and the micro-guide wire monopolar electrocoagulation can be visible in the whole process under X-ray; the hydrophilic coating improves the compatibility of the micro-guide wire monopolar electrocoagulation with blood and improves the smoothness in small blood vessels.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a little seal wire monopole electricity congeals apparatus is intervene to nerve.
Background
Intracranial aneurysm is a cerebral hemangioma-like protrusion generated by abnormal expansion of local blood vessels, rupture of intracranial aneurysm is the first cause of subarachnoid hemorrhage, and the lethality rate and disability rate of intracranial aneurysm are high. With the development of neuro-interventional instruments and techniques, neuro-interventional therapy has gradually become the first-line approach to intracranial aneurysm treatment. The existing method for interventional therapy of intracranial aneurysm mainly comprises the step of filling embolic materials such as a spring ring in a aneurysm cavity, but for the microaneurysms with the maximum diameter smaller than 3mm, the operation risk of filling the spring ring in the aneurysm cavity is higher, and particularly for the microaneurysms with the maximum diameter smaller than 1mm, the aneurysm is easy to rupture in the filling process.
The electrocoagulator is a relatively common hemostatic medical appliance, but the conventional electrocoagulator is applied to the wall of a blood vessel from the outside of the blood vessel to shrink the blood vessel so as to achieve the purpose of hemostasis. Physicians have tried to treat intracranial microaneurysms by endovascularly crimped adhesion by energizing neuro-interventional micro-wires in the vessel lumen, however there is currently no monopolar electrocoagulation of micro-wires dedicated for neuro-intervention.
Chinese patent documents: CN107334526A, published: 2017.11.10 discloses an electric coagulation forceps with intraoperative nerve monitoring function, which comprises a metal forceps tip, an upper forceps body, an electric coagulation forceps plug, a plug socket and a lower forceps body, wherein the surfaces of the upper forceps body and the lower forceps body are electrically insulated, the metal forceps tip at the front end is not subjected to insulation treatment, the rear end of the metal forceps tip is connected with the electric coagulation forceps plug through the plug socket, the electric coagulation forceps further comprises a monitoring switch and a monitoring plug, the metal forceps tip is electrically connected with the monitoring switch and the monitoring plug, and the monitoring plug is connected with a nerve monitoring host.
Chinese patent documents: CN106730251A, published: 2017.05.31 discloses a little seal wire, including the guide wire pole, still including connecting the godet of guide wire pole distal end is with connecting the seal wire tip of godet distal end, the seal wire tip can be compressed and elongated in order to remove in the blood vessel, just the seal wire tip can expand into the spheroid at the intravascular deployment, makes the seal wire tip outside pastes tightly and is fixed in the intravascular wall.
Chinese patent documents: CN202619840U, published: 2012.12.26, discloses a high temperature resistant unipolar electrocoagulator with suction function, which comprises a suction tube, an electrocoagulation head, high temperature resistant PPS, insulating plastic, a connecting body, a suction device interface and an electrocoagulation plug. The suction tube is connected with the electrocoagulation head into a whole, the tail part of the suction tube is arranged in the connector, the tail part of the connector is provided with a suction apparatus interface, and the suction apparatus interface is communicated with the suction tube. The electrocoagulation plug penetrates through the side surface of the connector and is connected with the wall of the suction tube in the connector. A layer of insulating plastic is wrapped outside the suction tube, and a layer of high-temperature resistant insulating plastic is wrapped on the suction tube close to the electrocoagulation head.
However, no report is found about the nerve intervention micro-guide wire monopolar electrocoagulation device of the utility model.
Disclosure of Invention
The utility model aims at providing a nerve medium goes into little seal wire monopole electricity congeals apparatus.
In order to achieve the purpose, the utility model adopts the technical proposal that:
a nerve intervention micro-guide wire unipolar electrocoagulation device comprises a reducing mandrel (1), a spring electrocoagulation head (2), an insulating protection layer (3) and a hydrophilic coating (4); the reducing mandrel (1) consists of a near-end linear constant-diameter section (11), a streamline reducing section (12), a far-end linear constant-diameter section (13), a conical spring sleeve joint part (14) and a nut-shaped welding point (15); the proximal linear constant-diameter section (11) is cylindrical, and the lower end of the proximal linear constant-diameter section (11) is fixedly connected with a streamline variable-diameter section (12); the streamline-shaped reducing section (12) is in a circular truncated cone shape, and the lower end of the streamline-shaped reducing section (12) is fixedly connected with a far-end linear type constant-diameter section (13); the far-end linear type constant-diameter section (13) is cylindrical, and the lower end of the far-end linear type constant-diameter section (13) is fixedly connected with a conical spring sleeve joint part (14); the conical spring sleeving part (14) is in a circular truncated cone shape, and the side surface of the conical spring sleeving part (14) is sleeved with the spring electrocoagulation head (2); the lower end of the conical spring sleeve joint part (14) is welded and connected with the lower end of the spring electrocoagulation head (2), and a nut-shaped welding point (15) is formed at the connection point; the insulating protective layer (3) covers partial side faces of the near-end linear type constant-diameter section (11), the whole side face of the streamline type variable-diameter section (12), the whole side face of the far-end linear type constant-diameter section (13) and partial side faces of the conical spring sleeving part (14); the hydrophilic coating (4) is coated on the insulating protective layer (3).
The total length of the reducing mandrel (1) is 200-300 cm; the length of the proximal linear constant diameter section (11) is 140-240 cm; the length of the streamline variable-diameter section (12) is 30-40 cm; the length of the far-end linear type constant-diameter section (13) is 14-27 cm; the length of the conical spring sleeving part (14) is 3-6 cm.
The diameter of the proximal linear constant diameter section (11) is 0.25-0.30 mm; the diameter of the far-end linear constant-diameter section (13) is 0.20-0.25 mm; the diameter of the streamline variable-diameter section (12) is gradually changed from 0.25-0.30mm to 0.20-0.25 mm; the diameter of the conical spring socket joint part (14) is gradually changed from 0.20-0.25mm to 0.05 mm.
The diameter of the spring wire of the spring electrocoagulation head (2) is 0.02-0.05 mm.
The spring electrocoagulation head (2) is made of conductive and radiopaque materials, specifically gold, platinum or tungsten.
The insulating protective layer (3) is made of a tungsten-containing non-conductive high polymer, specifically a tungsten-containing polyurethane, nylon or etheramide elastic material, and has insulating and radiopaque characteristics.
The hydrophilic coating (4) is made of half-ester methyl vinyl ether-maleic anhydride copolymer or maleic acid.
The material of the proximal linear constant-diameter section (11) and the streamline variable-diameter section (12) is stainless steel; the material of the far-end linear type constant diameter section (13) and the material of the conical spring sleeve joint part (14) are nickel-titanium alloy.
The utility model has the advantages that:
1. the utility model discloses a little seal wire monopole electricity congeals apparatus is gone into to nerve medium, and reducing dabber and spring electricity congeal the head and make its electrically conductive, accurate, the little characteristics of application range that have possessed the electricity congeals ware, have possessed the characteristics of little seal wire pliability, turning round accuse nature simultaneously.
2. The utility model discloses a little seal wire monopole electricity congeals apparatus is gone into to nerve, insulating protective layer will little seal wire monopole electricity congeals other parts and vessel wall, the blood isolation except that electricity congeals the head, has avoided haring human normal structure, makes little seal wire monopole electricity congeals whole journey visible under the X-ray simultaneously.
3. The utility model discloses a little seal wire monopole electricity congeals apparatus is gone into to nerve, and hydrophilic coating has improved the compatibility of little seal wire monopole electricity congeals and blood, has improved the smoothness nature in little blood vessel, and the intervention operation is changed in going on.
Drawings
FIG. 1 is a schematic plan view of a nerve-intervention micro-guide wire monopolar electrocoagulation device.
FIG. 2 is a schematic structural view of a diameter-variable mandrel of a nerve intervention micro-guide wire monopolar electrocoagulation device.
FIG. 3 is a schematic diagram of the combination of a conical spring sleeve joint part, a nut-shaped welding point and a spring electrocoagulation head of a nerve medium-entering micro-guide wire monopolar electrocoagulation device.
FIG. 4 is a combined plan view of a distal linear type constant diameter section, a conical spring sleeve joint part, a nut-shaped welding point, a spring electrocoagulation head, an insulating protective layer and a hydrophilic coating of the nerve medium micro-guide wire monopolar electrocoagulation device.
FIG. 5 is a schematic view of a combination of a reducing mandrel and a spring electrocoagulation head of a nerve intervention micro-guide wire monopolar electrocoagulation device.
Detailed Description
The invention will be further described with reference to the following examples and with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
1. reducing mandrel
11. Proximal linear constant diameter segment
12. Streamline variable diameter section
13. Far-end linear type constant diameter section
14. Conical spring sleeve joint part
15. Nut-shaped welding point
2. Spring electrocoagulation head
3. Insulating protective layer
4. Hydrophilic coating
Example 1
Referring to fig. 1, fig. 1 is a schematic plan view of a nerve intervention micro-guide wire monopolar electrocoagulation device of the present embodiment. The nerve interventional micro-guide wire monopolar electric coagulation instrument comprises a reducing mandrel (1), a spring electric coagulation head (2), an insulating protective layer (3) and a hydrophilic coating (4);
referring to fig. 2, fig. 3 and fig. 5, fig. 2 is a schematic structural view of a reducing mandrel of a nerve-intervention micro-guide wire monopolar electric coagulation instrument of the present embodiment, fig. 3 is a schematic combined view of a conical spring sleeve joint, a nut-shaped welding point and a spring electric coagulation head of the nerve-intervention micro-guide wire monopolar electric coagulation instrument of the present embodiment, and fig. 5 is a schematic combined view of the reducing mandrel and the spring electric coagulation head of the nerve-intervention micro-guide wire monopolar electric coagulation instrument of the present embodiment. The reducing mandrel (1) consists of a near-end linear constant-diameter section (11), a streamline reducing section (12), a far-end linear constant-diameter section (13), a conical spring sleeve joint part (14) and a nut-shaped welding point (15); the proximal linear constant-diameter section (11) is cylindrical, and the lower end of the proximal linear constant-diameter section (11) is fixedly connected with a streamline variable-diameter section (12); the streamline-shaped reducing section (12) is in a circular truncated cone shape, and the lower end of the streamline-shaped reducing section (12) is fixedly connected with a far-end linear type constant-diameter section (13); the far-end linear type constant-diameter section (13) is cylindrical, and the lower end of the far-end linear type constant-diameter section (13) is fixedly connected with a conical spring sleeve joint part (14); the conical spring sleeving part (14) is in a circular truncated cone shape, and the side surface of the conical spring sleeving part (14) is sleeved with the spring electrocoagulation head (2); the lower end of the conical spring sleeve joint part (14) is welded and connected with the lower end of the spring electrocoagulation head (2), and a nut-shaped welding point (15) is formed at the connection point;
referring to fig. 4, fig. 4 is a combined plan view of a distal linear type constant diameter section, a conical spring sleeve joint part, a nut-shaped welding point, a spring electrocoagulation head, an insulating protective layer and a hydrophilic coating of the nerve intervention micro-guide wire monopolar electrocoagulation device of the embodiment. The insulating protective layer (3) covers partial side faces of the near-end linear type constant-diameter section (11), the whole side face of the streamline type variable-diameter section (12), the whole side face of the far-end linear type constant-diameter section (13) and partial side faces of the conical spring sleeving part (14); the hydrophilic coating (4) is coated on the insulating protective layer (3).
The total length of the reducing mandrel (1) is 200-300 cm; the length of the proximal linear constant diameter section (11) is 140-240 cm; the length of the streamline variable-diameter section (12) is 30-40 cm; the length of the far-end linear type constant-diameter section (13) is 14-27 cm; the length of the conical spring sleeving part (14) is 3-6 cm.
The diameter of the proximal linear constant diameter section (11) is 0.25-0.30 mm; the diameter of the far-end linear constant-diameter section (13) is 0.20-0.25 mm; the diameter of the streamline variable-diameter section (12) is gradually changed from 0.25-0.30mm to 0.20-0.25 mm; the diameter of the conical spring socket joint part (14) is gradually changed from 0.20-0.25mm to 0.05 mm.
The diameter of the spring wire of the spring electrocoagulation head (2) is 0.02-0.05 mm.
The spring electrocoagulation head (2) is made of conductive and radiopaque materials, specifically gold, platinum or tungsten.
The insulating protective layer (3) is made of a tungsten-containing non-conductive high polymer, specifically a tungsten-containing polyurethane, nylon or etheramide elastic material, and has insulating and radiopaque characteristics.
The hydrophilic coating (4) is made of half-ester methyl vinyl ether-maleic anhydride copolymer or maleic acid.
The material of the proximal linear constant-diameter section (11) and the streamline variable-diameter section (12) is stainless steel; the material of the far-end linear type constant diameter section (13) and the material of the conical spring sleeve joint part (14) are nickel-titanium alloy.
Example 2
Referring to fig. 1, fig. 1 is a schematic plan view of a nerve intervention micro-guide wire monopolar electrocoagulation device of the present embodiment.
The application process and the method of the nerve intervention micro-guide wire monopolar electrocoagulation device are as follows:
when in use, the spring electrocoagulation head (2) is properly shaped, and is super-selected to the aneurysm cavity or the neck of an aneurysm in cooperation with a micro-catheter, and a dispersive electrode (electrode plate) of the electrocoagulator is stuck on the hip or thigh skin of a patient; connecting the part of the near-end linear constant-diameter section (11) which is not coated with the insulating protective layer with the movable electrode connecting wire; after electrification, under the action of high-frequency electrocoagulation, the spring electrocoagulation head (2) electrocoagulates the blood vessel intima in the microaneurysm and at the neck of the microaneurysm to ensure that the microaneurysm is cured after the microeneurysm is shrunk and adhered.
The utility model discloses a nerve intervention micro-guide wire monopole electric coagulation instrument, the characteristics of electric conduction, accuracy and small action range of an electric coagulation device are provided by a reducing mandrel (1) and a spring electric coagulation head (2), and the characteristics of micro-guide wire flexibility and torsion control are provided at the same time; the insulating protective layer (3) isolates the other parts of the micro-guide wire monopolar electrocoagulation except the electrocoagulation head from the blood vessel wall and blood, thereby avoiding damaging the normal structure of a human body and simultaneously enabling the micro-guide wire monopolar electrocoagulation to be visible in the whole process under X-ray; the hydrophilic coating (4) improves the compatibility of the monopolar electrocoagulation of the micro-guide wire with blood, improves the smoothness in small blood vessels and facilitates the intervention operation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.
Claims (3)
1. A nerve intervention micro-guide wire unipolar electrocoagulation instrument is characterized in that the nerve intervention micro-guide wire unipolar electrocoagulation instrument comprises a reducing mandrel (1), a spring electrocoagulation head (2), an insulating protection layer (3) and a hydrophilic coating (4); the reducing mandrel (1) consists of a near-end linear constant-diameter section (11), a streamline reducing section (12), a far-end linear constant-diameter section (13), a conical spring sleeve joint part (14) and a nut-shaped welding point (15); the proximal linear constant-diameter section (11) is cylindrical, and the lower end of the proximal linear constant-diameter section (11) is fixedly connected with a streamline variable-diameter section (12); the streamline-shaped reducing section (12) is in a circular truncated cone shape, and the lower end of the streamline-shaped reducing section (12) is fixedly connected with a far-end linear type constant-diameter section (13); the far-end linear type constant-diameter section (13) is cylindrical, and the lower end of the far-end linear type constant-diameter section (13) is fixedly connected with a conical spring sleeve joint part (14); the conical spring sleeving part (14) is in a circular truncated cone shape, and the side surface of the conical spring sleeving part (14) is sleeved with the spring electrocoagulation head (2); the lower end of the conical spring sleeve joint part (14) is welded and connected with the lower end of the spring electrocoagulation head (2), and a nut-shaped welding point (15) is formed at the connection point; the insulating protective layer (3) covers partial side faces of the near-end linear type constant-diameter section (11), the whole side face of the streamline type variable-diameter section (12), the whole side face of the far-end linear type constant-diameter section (13) and partial side faces of the conical spring sleeving part (14); the hydrophilic coating (4) is coated on the insulating protective layer (3).
2. The monopolar electrocoagulation device for nerve interventional micro-guide wires according to claim 1, wherein the total length of the reducing mandrel (1) is 200-300 cm; the length of the proximal linear constant diameter section (11) is 140-240 cm; the length of the streamline variable-diameter section (12) is 30-40 cm; the length of the far-end linear type constant-diameter section (13) is 14-27 cm; the length of the conical spring sleeving part (14) is 3-6 cm; the diameter of the proximal linear constant diameter section (11) is 0.25-0.30 mm; the diameter of the far-end linear constant-diameter section (13) is 0.20-0.25 mm; the diameter of the streamline variable-diameter section (12) is gradually changed from 0.25-0.30mm to 0.20-0.25 mm; the diameter of the conical spring sleeving part (14) is gradually changed from 0.20-0.25mm to 0.05 mm; the diameter of the spring wire of the spring electrocoagulation head (2) is 0.02-0.05 mm.
3. The monopolar electrocoagulation device for nerve interventional microwires according to claim 1, wherein the spring electrocoagulation head (2) is made of an electrically conductive and radiopaque material, in particular gold, platinum or tungsten; the insulating protective layer (3) is made of a tungsten-containing non-conductive high polymer, specifically a tungsten-containing polyurethane, nylon or etheramide elastic material, and has insulating and radiopaque characteristics; the hydrophilic coating (4) is made of half-ester methyl vinyl ether-maleic anhydride copolymer or maleic acid; the material of the proximal linear constant-diameter section (11) and the streamline variable-diameter section (12) is stainless steel; the material of the far-end linear type constant diameter section (13) and the material of the conical spring sleeve joint part (14) are nickel-titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560327.4U CN209932955U (en) | 2018-09-25 | 2018-09-25 | Nerve medium-entering micro-guide wire single-pole electrocoagulation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560327.4U CN209932955U (en) | 2018-09-25 | 2018-09-25 | Nerve medium-entering micro-guide wire single-pole electrocoagulation instrument |
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| Publication Number | Publication Date |
|---|---|
| CN209932955U true CN209932955U (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821560327.4U Expired - Fee Related CN209932955U (en) | 2018-09-25 | 2018-09-25 | Nerve medium-entering micro-guide wire single-pole electrocoagulation instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209932955U (en) |
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2018
- 2018-09-25 CN CN201821560327.4U patent/CN209932955U/en not_active Expired - Fee Related
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Granted publication date: 20200114 Termination date: 20200925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |