CN114796857A - Cranial hole electrode fixing device - Google Patents
Cranial hole electrode fixing device Download PDFInfo
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- CN114796857A CN114796857A CN202210742663.5A CN202210742663A CN114796857A CN 114796857 A CN114796857 A CN 114796857A CN 202210742663 A CN202210742663 A CN 202210742663A CN 114796857 A CN114796857 A CN 114796857A
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- electrode
- hole
- ring
- skull
- lock
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- 210000003625 skull Anatomy 0.000 claims abstract description 68
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 238000001125 extrusion Methods 0.000 claims abstract description 33
- 230000000694 effects Effects 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 5
- 241000050051 Chelone glabra Species 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000000638 stimulation Effects 0.000 abstract description 23
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 210000004556 brain Anatomy 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 210000005036 nerve Anatomy 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 230000000747 cardiac effect Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000007383 nerve stimulation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 210000003710 cerebral cortex Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 210000000278 spinal cord Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001186 vagus nerve Anatomy 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0526—Head electrodes
- A61N1/0529—Electrodes for brain stimulation
- A61N1/0539—Anchoring of brain electrode systems, e.g. within burr hole
Abstract
The invention discloses a cranial hole electrode fixing device. The skull hole electrode fixing device comprises a skull ring, an electrode lock and an extrusion mechanism, wherein the skull ring is used for being fixed on a skull, a through hole is formed in the skull ring, the electrode lock is arranged in the through hole and used for clamping an electrode, at least one part of the extrusion mechanism is used for being arranged in the through hole, the extrusion mechanism is arranged above the electrode lock and used for penetrating through the extrusion mechanism and the electrode lock, when the extrusion mechanism and the electrode lock are extruded, the electrode lock clamps the electrode, and when the extrusion mechanism and the electrode lock are not extruded, the electrode lock removes the constraint effect on the electrode. The cranial hole electrode fixing device is used for reducing the displacement of the electrode, reducing the problem of stimulation failure and ensuring the effectiveness of electrode stimulation.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a cranial hole electrode fixing device.
Background
Implantable medical systems typically include implantable electrical nerve stimulation systems, implantable cardiac electrical stimulation systems (commonly referred to as cardiac pacemakers), and implantable drug infusion systems. The implantable nerve electrical stimulation system comprises deep brain electrical stimulation DBS, implantable cerebral cortex stimulation CNS, implantable spinal cord electrical stimulation SCS, implantable sacral nerve electrical stimulation SNS and implantable vagus nerve electrical stimulation VNS. Taking the implanted electrical nerve stimulation system as an example, the system mainly comprises a pulse generator implanted in a body, an electrode and a control device outside the body. The pulse generator is connected with the electrodes so as to transmit the pulses generated by the pulse generator to the electrodes, and the pulse signals generated by the pulse generator are transmitted to the brain or a specific nerve part by the electrodes to carry out electrical stimulation so as to restore the function of the human body to a normal operation state.
In the process of implantation operation, a doctor firstly determines the target point position of the brain of a patient through a three-dimensional positioning device, the doctor opens a small hole on the skull of the patient according to the target point position, an electrode is inserted into the target point of the brain through the skull, the doctor uses a testing stimulator to test the implantation target point, if the stimulation treatment effect is in accordance with expectation, the electrode is fixed on the skull, and the stimulation is usually very small because the brain is stimulated and the cluster is very small, if the electrode for brain stimulation is slightly displaced, the stimulation failure can be caused.
Therefore, there is a need for a cranial cavity electrode fixation device that reduces electrode displacement, reduces the problems of stimulation failure, and ensures the effectiveness of electrode stimulation.
Disclosure of Invention
The invention aims to provide a cranial hole electrode fixing device which is used for reducing the displacement of an electrode, reducing the problem of stimulation failure and ensuring the effectiveness of electrode stimulation.
The purpose of the invention is realized by adopting the following technical scheme:
a cranial burr hole electrode fixation device comprising:
the skull ring is used for being fixed on a skull, and a through hole is formed in the skull ring;
the electrode lock is arranged in the through hole and used for clamping the electrode;
the electrode lock is used for clamping the electrode when the extrusion mechanism and the electrode lock are extruded, and when the extrusion mechanism and the electrode lock are not extruded, the electrode lock removes the restraint effect on the electrode.
Preferably, the electrode lock is provided with a clamping hole for the penetration of an electrode, the electrode lock is made of an elastic body, the inner side wall of the lower portion of the through hole is of an outwardly extending annular groove structure and is in smooth transition with the rest inner side walls of the through hole, and the outer side wall of the electrode lock is of a universal ball head structure partially attached to the inner side wall of the lower portion of the through hole.
Preferably, the electrode lock is made of silica gel.
Preferably, the extrusion mechanism still includes the snap ring, be provided with at least one first bayonet socket on the inner wall of through-hole, be provided with the barb corresponding with first bayonet socket position on the outer wall of snap ring, work as when the extrusion mechanism moves down to the first position, barb and the cooperation of corresponding first bayonet socket joint, the upper portion of snap ring contacts with the upper end outer fringe of through-hole, so that the snap ring is fixed in the through-hole and extrusion electrode lock.
Preferably, the extrusion mechanism further comprises a clamping ring, an internal thread is arranged on the inner wall of the through hole, an external thread matched with the internal thread is arranged on the outer wall of the clamping ring, and when the extrusion mechanism is screwed into the through hole and moves downwards to the first position, the upper portion of the clamping ring is in contact with the outer edge of the upper end of the through hole, so that the clamping ring is fixed in the through hole and extrudes the electrode lock.
Preferably, extrusion mechanism still includes annular gasket, annular gasket cover is established on the upper portion of electrode lock, annular gasket sets up between electrode lock and snap ring, snap ring and annular gasket butt or be connected as an organic wholely, there is the clearance between the lateral wall of electrode lock upper end and the inside wall of through-hole, work as when extrusion mechanism moves down, annular gasket's lower part is inserted in the clearance and extrude the electrode lock.
Preferably, smooth transition is formed between the inner wall of the first bayonet and the inner wall of the through hole, and the part of the barb, which is used for being clamped into the first bayonet, is an inclined surface so that the barb can be screwed out of the first bayonet.
Preferably, still set up at least one second bayonet socket on the inner wall of through-hole, the barb is corresponding with second bayonet socket position, the second bayonet socket sets up in the top of first bayonet socket, works as when extrusion mechanism moves to the second place from first position, the barb cooperates with corresponding second bayonet socket joint, so that extrusion mechanism removes the extrusion effect to the electrode lock and makes extrusion mechanism does not deviate from the through-hole.
Preferably, one side of the skull ring, which is far away from the skull, is provided with at least one first fixing groove, the top of the snap ring is provided with a second fixing groove corresponding to the first fixing groove, and the first fixing groove and the second fixing groove are both used for fixing the electrode.
Preferably, the number of the first fixing grooves and the number of the second fixing grooves are three, and the first fixing grooves and the second fixing grooves are uniformly distributed around the central axis of the skull ring.
Preferably, the side wall of the snap ring is provided with at least one shrinkage groove which extends upwards from the bottom and penetrates through the inside and the outside of the snap ring.
Preferably, the cranial hole electrode fixing device further comprises a cranial hole cover which is combined on the cranial ring and seals the electrode lock in the through hole;
the skull ring is provided with at least one clamping groove matched with the skull cap in a clamping manner;
when the skull hole cover is clamped in the clamping groove, the top surface of the skull hole cover is not higher than the top surface of the skull ring;
when the skull hole cover moves downwards to be clamped in the clamping groove, the bottom of the skull hole cover is abutted against the top of the extrusion mechanism.
Preferably, the skull ring comprises a ring part and an extension part, the extension part is connected below the ring part and is used for extending into a cranial hole of a skull, a through hole of the skull ring is formed on the extension part, at least two threaded holes are formed in the ring part, and the ring part is fixedly connected to the skull after penetrating through the threaded holes through screws.
Preferably, the extension has an outer diameter dimension of no more than 5mm, a height of no more than the depth of the burr hole, the ring portion is configured to conform to the outer surface of the skull, and a height of no more than 2 mm.
Compared with the prior art, the invention has the beneficial effects that at least:
the skull ring corresponds to a skull hole and is fixed on the skull, the electrode is inserted into and penetrates through the electrode lock at the moment, the extrusion mechanism and the electrode lock are not extruded, the electrode lock has no constraint effect on the electrode, and when the electrode is inserted into a brain target through the skull hole and the extrusion mechanism and the electrode lock are extruded, the electrode lock clamps the electrode when the extrusion mechanism and the electrode lock are extruded, so that the displacement of the electrode is reduced, the problem of stimulation failure is reduced, and the effectiveness of electrode stimulation is ensured.
Drawings
FIG. 1 is a perspective view of a burr hole electrode mounting device without a burr hole cover in accordance with an embodiment of the present invention;
FIG. 2 is a perspective view of a burr hole electrode mounting apparatus provided with a burr hole cover in accordance with an embodiment of the present invention;
FIG. 3 is a top view of a burr hole electrode mounting device with a burr hole cover according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic structural view of a pressing structure and an electrode lock in a cranial burr hole electrode fixing device according to an embodiment of the invention;
FIG. 6 is a schematic structural view of a skull ring of a cranial hole electrode fixation device according to an embodiment of the present invention.
In the figure: 1. a skull ring; 100. a ring portion; 101. an extension portion; 2. a through hole; 3. an electrode lock; 4. an extrusion mechanism; 400. an annular gasket; 401. a snap ring; 5. a clamping hole; 6. a gap; 7. a first bayonet; 8. a second bayonet; 9. a first fixing groove; 10. a second fixing groove; 11. a contraction groove; 12. a card slot; 13. a skull cap; 14. a threaded hole; 15. and (6) barb.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention.
The invention provides a cranial hole electrode fixing device which comprises a cranial ring 1, an electrode lock 3 and a squeezing mechanism 4.
As shown in fig. 1 to 6, a skull ring 1 is used for being fixed on the outer side of a skull of a patient, the skull ring 1 is provided with a through hole 2, an electrode lock 3 is arranged in the through hole 2, the electrode lock 3 is used for clamping an electrode, at least one part of a squeezing mechanism 4 is used for being arranged in the through hole 2, the squeezing mechanism 4 is arranged above the electrode lock 3, the electrode is used for penetrating through the squeezing mechanism 4 and the electrode lock 3, when the squeezing mechanism 4 and the electrode lock 3 are squeezed, the electrode lock 3 clamps the electrode, when the squeezing mechanism 4 and the electrode lock 3 are not squeezed, the electrode lock 3 releases the restraint effect on the electrode, specifically, when being implanted, the skull ring 1 corresponds to a skull hole and is fixed on the skull, then the electrode is inserted into and penetrates through the electrode lock 3, the electrode is inserted into a brain target point through the skull hole, if a medical staff does not apply downward pressure on the squeezing mechanism 4, the squeezing mechanism 4 and the electrode lock 3 do not squeeze, at the moment, the electrode lock 3 has no constraint effect on the electrode, and if medical personnel apply certain pressure to the extrusion mechanism 4 downwards, the extrusion mechanism 4 and the electrode lock 3 are extruded, so that the electrode lock 3 clamps the electrode, the condition that the electrode is displaced to cause stimulation failure is avoided, and the effectiveness of electrode stimulation is effectively ensured.
As a further implementation manner of this embodiment, as shown in fig. 1 and fig. 4 to fig. 6, a clamping hole 5 for passing through an electrode is provided on an electrode lock 3, the electrode lock 3 is made of an elastic body, specifically, the material of the electrode lock 3 may be a silica gel, the electrode lock 3 made of the silica gel can prevent the electrode from being damaged by an excessive clamping force while providing a sufficient clamping force, the inner side wall of the lower portion of the through hole 2 is an annular groove structure extending outward and smoothly transits with the remaining inner side walls of the through hole 2, and the outer side wall of the electrode lock 3 is a universal ball head structure partially attached to the inner side wall of the lower portion of the through hole 2.
As a further implementation manner of this embodiment, as shown in fig. 1 and fig. 4 to fig. 6, the pressing mechanism 4 further includes a clamping ring 401, as a first connection structure of the clamping ring, the inner wall of the through hole 2 is provided with at least one first bayonet 7, the outer wall of the clamping ring 401 is provided with a barb 15 corresponding to the position of the first bayonet 7, when the pressing mechanism 4 moves downward to the first position, the barb 4 is in snap fit with the corresponding first bayonet 7, and the upper portion of the clamping ring 401 contacts with the outer edge of the upper end of the through hole 2, so that the clamping ring 401 does not go deep into the through hole 2 to fail, and at this time, the clamping ring 401 is fixed in the through hole and directly presses the electrode lock 3 to reduce the clamping hole 5 to clamp the electrode;
or, as a second connection structure of the snap ring 401, which is not shown in the drawing, an inner thread is provided on an inner wall of the through hole 2, an outer thread matched with the inner thread is provided on an outer wall of the snap ring 401, and when the pressing mechanism 4 is screwed into the through hole 2 and moves downward to the first position, the upper portion of the snap ring 401 contacts with an outer edge of the upper end of the through hole 2, so that the snap ring 401 is fixed in the through hole 2 and presses the electrode lock 3.
As a further embodiment of the first connection structure of the snap ring 401 in this embodiment, as shown in fig. 1, 4 and 5, the pressing mechanism further includes an annular gasket 400, the annular gasket 400 is sleeved on the upper portion of the electrode lock 3, and the lower portion of the annular gasket 400 is tightly attached to the upper portion of the electrode lock 3, the annular gasket 400 is disposed between the electrode lock 3 and the snap ring 401, the snap ring 401 is abutted to or connected to the annular gasket 400, a gap is formed between the outer sidewall of the upper end of the electrode lock 3 and the inner sidewall of the through hole 2, when the pressing mechanism 4 moves downward to the first position, the snap ring 401 is fixed in the through hole 2 and the lower portion of the annular gasket 400 is inserted into the gap 6 and presses the electrode lock 3, at this time, the snap ring 401 is restricted from moving toward the central axis of the through hole 2, the annular gasket 400 is restricted from moving between the snap ring 401 and the annular gasket 400, so that the electrode lock 3 always applies a clamping force to the electrode to restrict the movement, thereby reduced the condition that the electrode takes place the displacement after fixed, reduced the problem that the stimulus became invalid, annular gasket 400 has not only played the extrusion effect of laminating more to electrode lock 3, also can avoid electrode lock 3 to follow the condition that turns to lead to damaging or direction inefficacy simultaneously.
As a further embodiment of this embodiment, as shown in fig. 1 and 4 to 6, at least one second bayonet 8 is further provided on the inner wall of the through hole 2, the barb 15 corresponds to the second bayonet 8, the second bayonet 8 is provided above the first bayonet 7, and when the pressing mechanism 4 moves from the first position to the second position, the barb 15 is in snap fit with the corresponding second bayonet 8, so that the pressing mechanism 4 releases the pressing action on the electrode lock 3 and the pressing mechanism 4 is not separated from the through hole 2, specifically, in the factory state of the cranial hole electrode fixing device, the barb 15 on the pressing mechanism 4 is clamped on the second bayonet 8, and thus the pressing mechanism 4 is not scattered and lost.
As a further implementation manner of this embodiment, a smooth transition is formed between an inner wall of the first bayonet 7 and an inner wall of the through hole 2, a portion of the barb 15, which is used for being clamped into the first bayonet 7, is an inclined surface so that the barb 15 can be screwed out of the first bayonet 7, specifically, when the squeezing mechanism 4 needs to be released from squeezing the electrode lock 3, a medical worker rotates the squeezing mechanism 4 so that the barb 15 on the snap ring 401 can be separated from the first bayonet 7, so that the squeezing mechanism 4 does not squeeze the electrode lock 3, at this time, the electrode lock 3 loses a constraint effect on the electrode, the medical worker can readjust the position of the electrode or take out the electrode, thereby satisfying the diversity of the operation, being more convenient to operate, and simplifying the operation flow of the operation.
As a further implementation manner of this embodiment, as shown in fig. 1, at least one first fixing groove 9 is formed in a side of the skull ring 1 away from the skull, a second fixing groove 10 corresponding to the position of the first fixing groove 9 is formed in the top of the snap ring 401, the first fixing groove 9 and the second fixing groove 10 are both used for fixing an electrode, the first fixing groove 9 and the second fixing groove 10 are uniformly distributed around the central axis of the skull ring 1, the size of the first fixing groove 9 and the size of the second fixing groove 10 are matched with the diameter of the electrode, in this embodiment, three first fixing grooves 9 and three second fixing grooves 10 are respectively provided, and are in one-to-one correspondence, so that a medical care provider can select a proper position to perform electrode outgoing, thereby satisfying the requirements of various outgoing positions, and further improving the application range of the skull hole electrode fixing device.
As a further embodiment of this embodiment, as shown in fig. 5, at least one shrinkage groove 11 extending upward from the bottom and penetrating through the inside and the outside of the snap ring 401 is provided on the side wall of the snap ring 401, the shrinkage groove 11 divides the portion of the snap ring 401 into at least two portions, when the snap ring 401 moves from the second position to the first position, each portion of the snap ring 401 gathers toward one side of the central axis of the through hole 2, and when the snap ring moves into the first position, the portion returns to the initial position, which effectively increases the service life of the extrusion mechanism 4, and avoids the failure of the extrusion mechanism 4 caused by hard extrusion.
As a further implementation manner of this embodiment, as shown in fig. 1 to 6, the cranial hole electrode fixing device further includes a cranial hole cover 13, the cranial hole cover 13 is combined on the cranial ring 1 and seals the electrode lock 3 in the through hole 2, the cranial ring 1 is provided with at least one clamping groove 12 in clamping fit with the cranial hole cover 13, the fitting of the cranial hole cover 13 and the cranial ring 1 is realized by clamping, the mounting step of the operation is simplified, meanwhile, when the cranial hole cover 13 is clamped in the clamping groove 12, the top surface of the cranial hole cover 13 is not higher than the top surface of the cranial ring 1, which avoids the influence of the excessive protrusion on the beauty of the head of the patient, and when the cranial hole cover 13 moves downwards to be clamped in the clamping groove 12, the bottom of the cranial hole cover 13 abuts against the top of the extruding mechanism 4, thereby limiting the movement of the extruding mechanism 4, avoiding the failure caused by the displacement of the extruding mechanism 4, and improving the reliability of the cranial hole electrode fixing device, it should be noted that, at this time, the joint between the upper portion of the snap ring 401 and the inner bottom wall of the snap groove 12 prevents the snap ring 401 from moving too far downward to cause failure.
As a further implementation manner of the present embodiment, as shown in fig. 2 and 4, the skull ring 1 includes a ring portion 100 and an extension portion 101, the extension portion 101 is connected below the ring portion 100 and is used for extending into a skull hole of a skull, a through hole 2 of the skull ring 1 is formed on the extension portion 101, at least two threaded holes 14 are provided on the ring portion 100, the threaded holes 14 are distributed at edges of both sides of the ring portion 100, so as to avoid a situation that the skull hole electrode fixing device is warped, the ring portion 100 is fixedly connected to the skull after penetrating through the threaded holes 14 by screws, so that the fixing device is more fastened and cannot easily fall off and fail.
As a further embodiment of this embodiment, as shown in fig. 2 and 4, the external diameter of the extension part 101 is not greater than 5mm, before the fixing device is installed, a skull hole needs to be opened on the skull of the patient, and the extension part 101 is placed into the skull hole, and in order to avoid the situation that the extension part 101 is too long and causes extra stimulation to the brain to cause inflammation and the like, the height of the extension part 101 is not greater than the depth of the skull hole, and in order to improve the aesthetic degree of the cranial hole electrode fixing device, the ring part 100 is tightly attached to the outer surface of the skull, and the height of the ring part 100 is not greater than 2 mm.
Although embodiments of the present invention have been shown and described, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, all such changes being within the scope of the appended claims.
Claims (14)
1. A cranial burr hole electrode fixation device, comprising:
the skull ring is used for being fixed on a skull, and a through hole is formed in the skull ring;
the electrode lock is arranged in the through hole and used for clamping the electrode;
the electrode lock is used for clamping the electrode when the extrusion mechanism and the electrode lock are extruded, and when the extrusion mechanism and the electrode lock are not extruded, the electrode lock removes the restraint effect on the electrode.
2. The cranial hole electrode fixing device according to claim 1, wherein the electrode lock is provided with a clamping hole for passing through an electrode, the electrode lock is made of an elastic body, the inner side wall of the lower part of the through hole is in an outwardly extending annular groove structure and is in smooth transition with the rest inner side walls of the through hole, and the outer side wall of the electrode lock is in a universal ball head structure which is partially attached to the inner side wall of the lower part of the through hole.
3. The burr hole electrode fixture of claim 2, wherein the electrode lock is made of silicone.
4. The burr hole electrode attachment device of claim 3, wherein the pressing mechanism further comprises a snap ring, the inner wall of the through hole is provided with at least one first bayonet, the outer wall of the snap ring is provided with a barb corresponding to the position of the first bayonet, when the pressing mechanism moves downwards to the first position, the barb is in snap fit with the corresponding first bayonet, and the upper portion of the snap ring is in contact with the outer edge of the upper end of the through hole, so that the snap ring is fixed in the through hole and presses the electrode lock.
5. The burr hole electrode attachment device of claim 3, wherein the compression mechanism further comprises a snap ring, wherein internal threads are provided on an inner wall of the through hole, wherein external threads matching the internal threads are provided on an outer wall of the snap ring, and wherein when the compression mechanism is threaded into the through hole and moved downward to the first position, an upper portion of the snap ring contacts an upper outer edge of the through hole to secure the snap ring in the through hole and compress the electrode lock.
6. The cranial hole electrode fixing device according to claim 4, wherein the pressing mechanism further comprises an annular gasket, the annular gasket is sleeved on the upper part of the electrode lock, the annular gasket is arranged between the electrode lock and a clamping ring, the clamping ring is abutted or connected with the annular gasket into a whole, a gap is formed between the outer side wall of the upper end of the electrode lock and the inner side wall of the through hole, and when the pressing mechanism moves downwards, the lower part of the annular gasket is inserted into the gap and presses the electrode lock.
7. The cranial hole electrode holder according to claim 4, wherein the inner wall of the through hole is further provided with at least one second bayonet, the barb corresponds to the second bayonet in position, the second bayonet is arranged above the first bayonet, and when the pressing mechanism moves from the first position to the second position, the barb and the corresponding second bayonet are in snap fit engagement so that the pressing mechanism releases the pressing action on the electrode lock and prevents the pressing mechanism from separating from the through hole.
8. The cranial hole electrode fixing device according to claim 7, wherein the inner wall of the first bayonet and the inner wall of the through hole are in smooth transition, and the part of the barb for being clamped into the first bayonet is an inclined surface so that the barb can be screwed out of the first bayonet.
9. The cranial hole electrode fixing device according to claim 4 or 5, wherein the side of the skull ring away from the skull is provided with at least one first fixing groove, the top of the snap ring is provided with a second fixing groove corresponding to the first fixing groove, and the first fixing groove and the second fixing groove are used for fixing the electrode.
10. The burr hole electrode fixation device of claim 9, wherein there are three of the first and second fixation slots, respectively, and the first and second fixation slots are evenly distributed about a central axis of the cranial ring.
11. The burr hole electrode attachment device of claim 4, wherein the side wall of the snap ring is provided with at least one constricting channel extending upwardly from the base and through the interior and exterior of the snap ring.
12. The burr hole electrode fixation device of claim 1, further comprising a burr hole cover coupled to the burr hole ring and enclosing the electrode lock within the through-hole;
the skull ring is provided with at least one clamping groove matched with the skull cap in a clamping manner;
when the skull hole cover is clamped in the clamping groove, the top surface of the skull hole cover is not higher than the top surface of the skull ring;
when the skull hole cover moves downwards to be clamped in the clamping groove, the bottom of the skull hole cover is abutted against the top of the extrusion mechanism.
13. The cranial hole electrode fixing device according to claim 1, wherein the skull ring comprises a ring part and an extension part, the extension part is connected below the ring part and is used for extending into the cranial hole of the skull, the through hole of the skull ring is formed on the extension part, at least two threaded holes are arranged on the ring part, and the ring part is fixedly connected to the skull after penetrating through the threaded holes by screws.
14. The burr hole electrode fixation device of claim 13, wherein an outer diameter dimension of the extension is no greater than 5mm, a height of the extension is no greater than a depth of the burr hole, the ring is for conforming to an outer surface of the cranium, and the height of the ring is no greater than 2 mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210742663.5A CN114796857B (en) | 2022-06-28 | 2022-06-28 | Cranial hole electrode fixing device |
| PCT/CN2023/098895 WO2024001708A1 (en) | 2022-06-28 | 2023-06-07 | Cranial foramina electrode fixing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210742663.5A CN114796857B (en) | 2022-06-28 | 2022-06-28 | Cranial hole electrode fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114796857A true CN114796857A (en) | 2022-07-29 |
| CN114796857B CN114796857B (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210742663.5A Active CN114796857B (en) | 2022-06-28 | 2022-06-28 | Cranial hole electrode fixing device |
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| CN (1) | CN114796857B (en) |
| WO (1) | WO2024001708A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116421888A (en) * | 2023-04-23 | 2023-07-14 | 北京品驰医疗设备有限公司 | Clamping assembly and medical instrument fixing device |
| CN116603168A (en) * | 2023-04-23 | 2023-08-18 | 北京品驰医疗设备有限公司 | Base and medical instrument fixing device |
| WO2024001708A1 (en) * | 2022-06-28 | 2024-01-04 | 苏州景昱医疗器械有限公司 | Cranial foramina electrode fixing apparatus |
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| US6356792B1 (en) * | 2000-01-20 | 2002-03-12 | Electro Core Technologies, Llc | Skull mounted electrode lead securing assembly |
| CN102526880A (en) * | 2010-12-15 | 2012-07-04 | 苏州景昱医疗器械有限公司 | Fixator for brain electrode lead |
| CN108853718A (en) * | 2018-08-08 | 2018-11-23 | 杭州承诺医疗科技有限公司 | A kind of deep brain stimulation electrode implanting instrument |
| CN110215605A (en) * | 2018-03-01 | 2019-09-10 | 苏州景昱医疗器械有限公司 | The fixed device of brain electrode and external member |
| CN213760217U (en) * | 2020-11-10 | 2021-07-23 | 南通市第四人民医院 | Cranial hole electrode lock not easy to generate electrode deviation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325072A (en) * | 2018-04-20 | 2018-07-27 | 北京品驰医疗设备有限公司 | A kind of medical instrument fixing device |
| US11547850B2 (en) * | 2018-11-29 | 2023-01-10 | Neuropace, Inc. | Lead fixation devices for securing a lead to a cranium |
| CN114796857B (en) * | 2022-06-28 | 2022-09-27 | 苏州景昱医疗器械有限公司 | Cranial hole electrode fixing device |
-
2022
- 2022-06-28 CN CN202210742663.5A patent/CN114796857B/en active Active
-
2023
- 2023-06-07 WO PCT/CN2023/098895 patent/WO2024001708A1/en unknown
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| US6356792B1 (en) * | 2000-01-20 | 2002-03-12 | Electro Core Technologies, Llc | Skull mounted electrode lead securing assembly |
| CN102526880A (en) * | 2010-12-15 | 2012-07-04 | 苏州景昱医疗器械有限公司 | Fixator for brain electrode lead |
| CN110215605A (en) * | 2018-03-01 | 2019-09-10 | 苏州景昱医疗器械有限公司 | The fixed device of brain electrode and external member |
| CN108853718A (en) * | 2018-08-08 | 2018-11-23 | 杭州承诺医疗科技有限公司 | A kind of deep brain stimulation electrode implanting instrument |
| CN213760217U (en) * | 2020-11-10 | 2021-07-23 | 南通市第四人民医院 | Cranial hole electrode lock not easy to generate electrode deviation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001708A1 (en) * | 2022-06-28 | 2024-01-04 | 苏州景昱医疗器械有限公司 | Cranial foramina electrode fixing apparatus |
| CN116421888A (en) * | 2023-04-23 | 2023-07-14 | 北京品驰医疗设备有限公司 | Clamping assembly and medical instrument fixing device |
| CN116603168A (en) * | 2023-04-23 | 2023-08-18 | 北京品驰医疗设备有限公司 | Base and medical instrument fixing device |
| CN116603168B (en) * | 2023-04-23 | 2023-10-31 | 北京品驰医疗设备有限公司 | Base and medical instrument fixing device |
| CN116421888B (en) * | 2023-04-23 | 2023-12-29 | 北京品驰医疗设备有限公司 | Clamping assembly and medical instrument fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114796857B (en) | 2022-09-27 |
| WO2024001708A1 (en) | 2024-01-04 |
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