Intracranial pressure monitoring probe fixing device
By designing a fixation device for the intracranial pressure monitoring probe, which includes a base plate, a detachable ring block, and a snap-fit strip, the problem of existing devices being unable to simultaneously accommodate both thin probes and thick drainage tubes has been solved. This achieves both firm and flexible fixation, improves ease of operation and wearing comfort, and reduces the risk of infection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FIRST AFFILIATED HOSPITAL OF KUNMING MEDICAL UNIV
- Filing Date
- 2026-04-17
- Publication Date
- 2026-05-19
AI Technical Summary
Existing intracranial pressure monitoring probe fixation devices have limited functionality and cannot simultaneously accommodate both thin probes and thick drainage tubes. They suffer from poor fixation, complex operation, discomfort when worn, and the risk of infection. Furthermore, existing devices cannot meet clinical needs for secure fixation and anti-displacement of thin probes, as well as flexible fixation, anti-bending, and anti-blockage of thick drainage tubes.
An intracranial pressure monitoring probe fixation device was designed, which adopts a structure of base plate, detachable ring block, snap strip and limiting component. Through different connection hole and groove design, it can achieve firm fixation of thin probe and flexible fixation of thick drainage tube. It is equipped with ventilation holes to improve comfort and simplify operation process.
It achieves dual-purpose fixation of fine probes and thick drainage tubes, improving the adaptability and stability of the fixation device, reducing operational complexity and patient discomfort, reducing the risk of infection, and ensuring the accuracy and safety of monitoring.
Smart Images
Figure CN122057147A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of medical device technology, and in particular relates to a fixation device for an intracranial pressure monitoring probe. Background Technology
[0002] Intracranial pressure monitoring (IPP) is a crucial monitoring tool in neurosurgery and critical care medicine for conditions such as traumatic brain injury, cerebral hemorrhage, and intracranial tumors. IPP probes collect real-time intracranial pressure data, providing essential information for clinical diagnosis, treatment adjustments, and prognosis. Currently, commonly used IPP probes fall into two main categories: one is the fiber optic fine probe (0.7–1.5 mm in diameter), which is soft and small, making it easy to implant in brain tissue, but is prone to bending, displacement, and slippage. Displacement or expulsion can lead to distorted monitoring data and may even require reimplantation, increasing patient suffering and infection risks. The other category is ventricular drainage tubes or large ICP catheters (2.5 mm or more in diameter), which combine intracranial pressure monitoring and cerebrospinal fluid drainage. These catheters require maintaining patency; overly tight fixation can cause compression or bending, leading to drainage blockage, increased intracranial pressure, and endangering the patient's life. Conversely, loose fixation can result in displacement or expulsion, similarly affecting treatment outcomes.
[0003] In existing technologies, fixation devices for the two types of probes mentioned above are mostly single-function designs, meaning that one fixation device can only be used with either a thin probe or a large drainage tube, and cannot achieve universal compatibility. Clinical use requires the preparation of two different fixation devices, increasing medical costs and the operational complexity for medical staff. Furthermore, existing thin probe fixation devices often employ simple adhesive tape, suture fixation, or single-slot clamping methods. Adhesive tape is prone to detachment due to patient sweating or head movement, leading to probe displacement; suture fixation is an invasive procedure that can easily damage the patient's scalp, increasing the risk of infection; and single-slot clamping methods cannot accommodate connecting wires of thin probes with different diameters, and the clamping force is difficult to control—too tight a clamp can damage the probe wire, while too loose a clamp cannot achieve effective fixation.
[0004] For fixation devices of large drainage tubes, existing technologies mostly adopt open brackets or simple binding methods. Open brackets lack effective limiting structures, making it easy for the drainage tube to fall out of the bracket; simple binding methods can easily lead to compression and bending of the lumen, affecting the drainage effect. In addition, the base plate of existing fixation devices is mostly a closed structure, which can easily cause patients' scalp to feel stuffy and sweaty after long-term wear, causing discomfort. Moreover, the detachable structure of some fixation devices is complicated, making it inconvenient for medical staff to operate and unable to quickly switch fixation modes, which makes it difficult to meet the efficient operation requirements of clinical emergency, transportation and routine monitoring.
[0005] In summary, existing intracranial pressure monitoring probe fixation devices suffer from drawbacks such as limited functionality, poor adaptability, inadequate fixation, inconvenient operation, and low wearing comfort. They cannot simultaneously meet the dual clinical needs of "firm fixation, anti-displacement, and anti-damage" for thin probes and "flexible fixation, anti-bending, and anti-blockage" for thick drainage tubes. Therefore, developing an intracranial pressure monitoring probe fixation device that can achieve dual use, has strong adaptability, reliable fixation, and convenient operation has become an urgent technical problem to be solved in clinical practice. Summary of the Invention
[0006] To address the problems existing in the prior art, this invention provides an intracranial pressure monitoring probe fixation device that simultaneously meets the dual clinical requirements of "firm fixation, anti-displacement, and anti-damage" for thin probes and "flexible fixation, anti-bending, and anti-blockage" for thick drainage tubes, thus solving the problems of the prior art.
[0007] This invention is implemented as follows: an intracranial pressure monitoring probe fixation device includes a base plate. The base plate has a first connecting hole and a second connecting hole on its side, a first central hole in its center, and a first groove on one side of the base plate. The first groove communicates with the first central hole, and a limiting member is provided on the upper side of the first groove. A second groove is provided on the base plate, the second groove having an arc-shaped cross-section. A retaining strip is engaged in the second groove, and the retaining strip has an internal receiving channel. A detachable annular block is connected inside the first central hole, and the annular block has a second central hole inside. A third groove is provided on the annular block, and the third groove is aligned with the second groove.
[0008] In a preferred embodiment of the present invention, the substrate is configured as a circular plate, and two of each of the first and second connecting holes are provided; the first groove and the second groove are perpendicular to each other.
[0009] As a preferred embodiment of the present invention, the interior of the first central hole is fixedly connected to the annular block by a connecting block.
[0010] As a preferred embodiment of the present invention, the first central hole is a threaded hole, and the outer side of the annular block is provided with external threads, and the annular block is threadedly connected to the first central hole.
[0011] As a preferred embodiment of the present invention, the snap-fit strip can be snapped into the third groove.
[0012] As a preferred embodiment of the present invention, the substrate is provided with two sliding grooves, which are respectively located on both sides of the first groove and are parallel to the first groove; the limiting member includes two sliding rods, which are slidably connected in the sliding grooves, and an arc-shaped plate is fixedly connected to the sliding rods.
[0013] In a preferred embodiment of the present invention, a locking block is fixedly connected to one end of the slide rod, and limiting strips are provided at equal intervals on the locking block, with protrusions at the ends of the limiting strips; a locking groove is opened at the other end of the slide rod, and a limiting groove is provided on the side of the locking groove, with a recessed portion at the end of the limiting groove. The locking block of one limiting member can engage with the locking groove of the other limiting member, thus opening the opening and allowing the limiting strips to be inserted into the limiting groove, with the protrusions engaging with the recessed portions.
[0014] As a preferred embodiment of the present invention, the arc-shaped plate is provided with airbag strips at both ends. When the two limiting members are engaged, the airbag strips squeeze each other to fix the probe line.
[0015] As a preferred embodiment of the present invention, the substrate is provided with vent holes.
[0016] As a preferred embodiment of the present invention, the slide bar has a notch in the middle, and the locking strip can be locked into the notch.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0018] 1. This device can be used to fix both a thin probe and a thick drainage tube. Through the combination of a detachable ring block, replaceable snap-fit strip and limiting component, it can firmly fix the thin probe and prevent it from shifting or bending, while flexibly fixing the thick drainage tube and avoiding pressure blockage of the lumen, thus adapting to different clinical needs.
[0019] 2. The device has a simple structural design and is easy to operate. It can quickly switch between two fixation modes. At the same time, through symmetrical connection holes, circular plate base, and ventilation holes, the device's fixation stability and wearing comfort are improved, reducing the complexity of medical operations and patient discomfort. Attached Figure Description
[0020] Figure 1 This is a first-view structural schematic diagram of the intracranial pressure monitoring probe fixation device provided in an embodiment of the present invention;
[0021] Figure 2 This is provided by the embodiments of the present invention. Figure 1 A magnified structural diagram of part A in the middle;
[0022] Figure 3 This is provided by the embodiments of the present invention. Figure 1 A magnified structural diagram of part B in the middle section;
[0023] Figure 4 This is a schematic diagram of the structure of the limiting member provided in an embodiment of the present invention;
[0024] Figure 5 This is provided by the embodiments of the present invention. Figure 4 A magnified structural diagram of section C;
[0025] Figure 6 This is provided by the embodiments of the present invention. Figure 4 A magnified structural diagram of section D;
[0026] Figure 7 This is a first-view structural schematic diagram of the intracranial pressure monitoring probe fixation device provided in an embodiment of the present invention;
[0027] Figure 8 This is provided by the embodiments of the present invention. Figure 7 A magnified structural diagram of section E in the middle.
[0028] In the figure: 1. Substrate; 2. First connecting hole; 3. Second connecting hole; 4. First central hole; 5. First groove; 6. Limiting member; 7. Second groove; 8. Snap-fit strip; 9. Receiving channel; 10. Annular block; 11. Second central hole; 12. Third groove; 13. Connecting block; 14. Slide groove; 15. Slide rod; 16. Arc plate; 17. Snap-fit block; 18. Limiting strip; 19. Protrusion; 20. Snap-fit groove; 21. Limiting groove; 22. Groove; 23. Airbag strip; 24. Vent hole; 25. Notch. Detailed Implementation
[0029] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0030] The structure of the present invention will now be described in detail with reference to the accompanying drawings.
[0031] like Figures 1 to 8 As shown in the figure, an intracranial pressure monitoring probe fixation device provided by an embodiment of the present invention includes a base plate 1. The side of the base plate 1 is provided with a first connecting hole 2 and a second connecting hole 3. The middle of the base plate 1 is provided with a first central hole 4, and one side of the base plate 1 is provided with a first groove 5. The first groove 5 and the first central hole 4 are connected. A limiting member 6 is provided on the upper side of the first groove 5. The base plate 1 is provided with a second groove 7. The cross-section of the second groove 7 is arc-shaped. A snap-fit strip 8 is snapped into the second groove 7. The snap-fit strip 8 is provided with a receiving channel 9 inside. A detachable annular block 10 is connected inside the first central hole 4. The annular block 10 is provided with a second central hole 11 inside. The annular block 10 is provided with a third groove 12. The third groove 12 is aligned with the second groove 7.
[0032] This intracranial pressure monitoring probe fixation device uses base plate 1 as the overall load-bearing foundation. Relying on the linkage structure of the side, middle and detachable annular block 10 of base plate 1, it is suitable for fixing two different specifications of pipelines. The overall working principle is realized by the cooperation of various structures, as detailed below:
[0033] The device uses the first connection hole 2 and the second connection hole 3 on the side of the base plate 1 to install the elastic fixation strap, thereby fixing the entire device to the patient's head. The two connection holes correspond to two fixation modes, which do not interfere with each other and can be used independently to ensure the stability of the device when worn.
[0034] When fixing a thin fiber optic intracranial pressure monitoring probe, the annular block 10 remains assembled within the first central hole 4, and the third groove 12 on the annular block 10 is aligned with the second groove 7 on the substrate 1. The thin probe passes through the second central hole 11 inside the annular block 10 to complete the initial guiding and positioning. The probe's matching thin wire is placed into the receiving channel 9 inside the snap-fit strip 8, and then the snap-fit strip 8 is snapped into the second groove 7 with a superior arc-shaped cross-section. The superior arc-shaped structure can achieve a stable snap-fit of the snap-fit strip 8 and prevent it from coming out. Relying on the cooperation between the snap-fit strip 8 and the second groove 7 and the third groove 12, the lateral clamping and fixing of the thin wire is completed, which not only ensures the fixing is firm but also does not squeeze or damage the probe wire. At the same time, by replacing the snap-fit strip 8 with different sizes of internal receiving channel 9, it can be adapted to the fixing requirements of thin probes of different specifications.
[0035] When fixing a large ventricular drainage tube or a large ICP catheter, the annular block 10 is disassembled from the first central hole 4 to release the internal limiting of the first central hole 4, exposing the complete first central hole 4. The large catheter is then passed through the first central hole 4, and the catheter body is placed into the first groove 5 that communicates with the first central hole 4. The first groove 5 provides initial support and limiting for the large catheter. Then, the limiting member 6 on the upper side of the first groove 5 limits and constrains the large catheter placed in the groove, preventing the catheter from falling out of the groove. This achieves flexible fixation of the large catheter, avoiding catheter displacement or dislodgement, and preventing excessive compression of the catheter lumen, thus ensuring unobstructed drainage and monitoring pathways.
[0036] Specifically, the substrate 1 is a circular plate, with two of each of the first connecting holes 2 and the second connecting holes 3; the first groove 5 and the second groove 7 are perpendicular. The substrate 1 has an overall circular structure with smooth edges. Regardless of whether the device is used in the first mode (fine probe fixation) or the second mode (coarse drainage tube fixation), the circular plate structure can conform to the contour of the patient's head, avoiding sharp edges from scratching the patient's scalp or medical staff. At the same time, the circular plate structure distributes force evenly, preventing local pressure when fitting the scalp and improving wearing comfort. There are two of each of the first connecting holes 2 and the second connecting holes 3, symmetrically distributed on both sides of the circular substrate 1. In the first mode (fine probe fixation), elastic bands are installed through the two second connecting holes 3, and symmetrical force ensures that the device is stable and secure after binding, preventing the device from shifting or shaking. In the second mode (coarse drainage tube fixation), elastic bands are installed through the two first connecting holes 2, similarly achieving symmetrical force distribution, ensuring that the device will not shift due to patient head movement after fixation, while also ensuring the stability of the substrate 1 in contact with the scalp.
[0037] In one embodiment, the interior of the first central hole 4 is fixedly connected to the annular block 10 via a connecting block 13. In this embodiment, when the first mode of use is required, it can be used directly. When the second mode of use is required, the annular block 10 is broken off from the position of the connecting block 13.
[0038] 1. First usage method (fine probe fixing): The annular block 10 is fixedly connected to the first central hole 4 through the connecting block 13. The connecting block 13 is an integrated connection structure, which does not require additional disassembly or installation and can directly maintain the connection state. The second central hole 11 inside the annular block 10 can guide the fine probe to ensure that the fine probe passes through smoothly and in a precise position, while providing a stable foundation for the snap-fit strip 8 to be snapped in.
[0039] 2. Second method of use (fixation of coarse drainage tube): When it is necessary to disassemble the annular block 10, medical staff can directly break the annular block 10 from the connecting block 13 by hand. The connecting block 13 is designed to be easily broken (such as using a thin connecting piece), without the need for additional tools, and the operation is quick and convenient. After breaking, the annular block 10 is completely separated from the first central hole 4, exposing the complete first central hole 4, which facilitates the passage and placement of the coarse drainage tube and does not affect the fixation operation of the coarse drainage tube.
[0040] 3. Connection reliability: The connection strength between the connecting block 13 and the first central hole 4 and the annular block 10 is moderate. In the first usage mode, it can ensure that the annular block 10 will not loosen or shift, thus ensuring the stability of the fine probe fixation. At the same time, the easy-to-break design of the connecting block 13 will not affect the integrity of other structures of the device. The substrate 1 can still be used normally after being broken.
[0041] In another embodiment, the first central hole 4 is a threaded hole (not shown in the figure), and the outer side of the annular block 10 is provided with external threads (not shown in the figure), and the annular block 10 is threadedly connected to the first central hole 4.
[0042] 1. First method of use (fixing the fine probe): Align the external thread on the outer side of the annular block 10 with the internal thread of the first central hole 4, rotate the annular block 10 to make the threads of the two tightly mesh, and realize the fixed connection between the annular block 10 and the first central hole 4; the strength of the threaded connection can be adjusted. Rotate to a suitable force to ensure that the annular block 10 will not loosen or rotate. The second central hole 11 inside the annular block 10 can play a precise guiding role for the fine probe, and at the same time provide a stable foundation for the insertion of the snap-fit strip 8.
[0043] 2. Second usage method (fixed coarse drainage tube): When it is necessary to disassemble the annular block 10, rotate the annular block 10 in the opposite direction to separate the external thread of the annular block 10 from the internal thread of the first central hole 4, so that the annular block 10 can be completely removed, exposing the first central hole 4, which is convenient for the coarse drainage tube to pass through and be placed; the disassembled annular block 10 can be reused. When switching back to the first usage method, the annular block 10 can be rotated and tightened again to achieve reuse.
[0044] Furthermore, the snap-fit strip 8 can be snapped into the third groove 12.
[0045] The first method of use (fixing the fine probe): After the annular block 10 is connected and fixed to the first central hole 4, adjust the position of the annular block 10 so that the third groove 12 on the annular block 10 is aligned with the second groove 7 on the substrate 1; insert the selected snap-fit strip 8 (matching the size of the fine probe connection line) into the second groove 7 and the third groove 12 at the same time. The snap-fit strip 8 fits tightly with the two grooves to form a double limit.
[0046] 2. Anti-rotation function: After the snap-fit strip 8 is snapped into the third groove 12, it forms a rigid contact with the annular block 10, restricting the rotational freedom of the annular block 10 and preventing the annular block 10 from rotating due to factors such as patient head movement or external force contact; especially when the annular block 10 adopts a threaded connection, it can effectively prevent the threads of the annular block 10 from loosening, ensure the stability of the position of the annular block 10, and thus ensure the guiding accuracy of the second central hole 11 for the fine probe, and prevent the fine probe from shifting.
[0047] 3. Coordination and fixing function: The locking strip 8 simultaneously engages with the two grooves, which not only prevents the ring block 10 from rotating, but also further enhances the fixing stability of the locking strip 8 itself. This makes the lateral clamping force of the locking strip 8 on the thin probe connecting wire more uniform and firm, and prevents the thin probe from shifting or bending due to the loosening of the locking strip 8.
[0048] Furthermore, the substrate 1 is provided with two sliding grooves 14, which are located on both sides of the first groove 5 and are parallel to the first groove 5; the limiting member 6 includes two sliding rods 15, which are slidably connected in the sliding grooves 14, and an arc plate 16 is fixedly connected to the sliding rods 15.
[0049] 1. First usage method (fixed fine probe): Two sliding grooves 14 are symmetrically distributed on both sides of the first groove 5 and are parallel to the first groove 5. The sliding rod 15 is slidably connected in the sliding groove 14. At this time, the snap-fit strip 8 is snapped into the notch 25 of the sliding rod 15 and the second notch of the arc plate 16, restricting the sliding of the sliding rod 15 in the sliding groove 14, so that the sliding rod 15 and the arc plate 16 are kept in a fixed state. The arc plate 16 forms a surrounding protection for the fine probe to prevent the probe from being hit or bent by external forces.
[0050] 2. Second usage method (fixing the thick drainage tube): The slide groove 14 is parallel to the first groove 5, and the slide rod 15 can slide freely along the slide groove 14. Medical staff can slide the two slide rods 15 according to the thickness of the thick drainage tube to adjust the distance between the two arc plates 16: When inserting the drainage tube, slide the slide rod 15 to separate the arc plates 16, making it easier for the drainage tube to be inserted into the first groove 5; after adjustment, slide the slide rod 15 to make the arc plates 16 fit against the surface of the drainage tube, thereby limiting the position of the drainage tube. The guiding effect of the slide groove 14 can ensure that the moving direction of the slide rod 15 is consistent with the placement direction of the drainage tube, avoid the arc plates 16 from shifting, and ensure accurate positioning.
[0051] 3. In conjunction with other structures: The position design of the slide groove 14 allows the arc plate 16 to be precisely aligned with the first groove 5, ensuring that the arc plate 16 can fit against the surface of the drainage tube and achieve effective limiting; at the same time, the slide rod 15 is fixedly connected to the arc plate 16, and the sliding of the slide rod 15 can drive the arc plate 16 to move synchronously, ensuring that the movement of the two arc plates 16 is synchronized and avoiding uneven force on the drainage tube caused by unilateral offset.
[0052] Furthermore, a locking block 17 is fixedly connected to one end of the slide rod 15. The locking block 17 has equidistant limiting strips 18, and the ends of the limiting strips 18 have protrusions 19. The other end of the slide rod 15 has a locking groove 20, and the side of the locking groove 20 has a limiting groove 21. The end of the limiting groove 21 has a recessed portion 22. The locking block 17 of one limiting member 6 can engage with the locking groove 20 of the other limiting member 6, thus opening the opening and allowing the limiting strips 18 to be inserted into the limiting groove 21, with the protrusions 19 engaging with the recessed portion 22.
[0053] Furthermore, the arc-shaped plate 16 is provided with airbag strips 23 at both ends. When the two limiting members 6 are engaged, the airbag strips 23 are squeezed against each other to fix the probe line.
[0054] 1. First usage method (fine probe fixing): A connecting airbag is set between the two airbag strips 23, located inside the arc plate 16. After the snap-fit strip 8 fixes the fine probe connecting wire, the slide rod 15 is fixed by snapping the snap-fit strip 8 into the notch 25. At this time, the snap-fit strip 8 can squeeze the connecting airbag, thus conforming to the surface of the fine probe without squeezing, playing a buffering and protective role, avoiding rigid pressure from the arc plate 16 on the fine probe, and preventing the probe from bending or being damaged.
[0055] 2. Second usage method (fixing the thick drainage tube): Adjust the slide bar 15 so that the two arc plates 16 are in contact with the surface of the drainage tube, and the two limiting pieces 6 are engaged (the locking block 17 is inserted into the locking groove 20). At this time, the airbag strips 23 at both ends of the arc plate 16 are squeezed against each other, producing elastic deformation. The elastic force of the airbag strips 23 can not only further clamp the drainage tube and achieve reliable limiting, but also play a buffering role to avoid the arc plate 16 from causing rigid compression to the drainage tube, prevent the drainage tube cavity from being compressed and bent, and ensure the unobstructed flow of the cavity.
[0056] 3. Protective function: Regardless of the method of use, the soft material of the airbag strip 23 can reduce the friction between the arc plate 16 and the probe / catheter and scalp, avoid scratching the probe / catheter or the patient's scalp, and at the same time improve wearing comfort and reduce head movement caused by patient discomfort due to friction.
[0057] Furthermore, the substrate 1 is provided with ventilation holes 24. Regardless of whether the device is in the first usage mode (fine probe fixed) or the second usage mode (coarse drainage tube fixed), the substrate 1 adheres to the patient's scalp. The ventilation holes 24 on the substrate 1 are evenly distributed, allowing air circulation between the scalp and the outside environment, promptly expelling sweat and heat generated by the scalp, and preventing sweat accumulation between the substrate 1 and the scalp. The slide rod 15 has a notch 25 in the middle, and the locking strip 8 can be engaged with the notch 25. With this design, in the first usage mode, the locking strip 8 can fix the limiting member 6, allowing the arc-shaped plate 16 to protect the monitoring probe. In the second usage mode, this design also allows the limiting member 6 to be positioned above the first central hole 4, thereby protecting the monitoring probe.
[0058] Working principle of the invention:
[0059] This device uses base plate 1 as the supporting foundation and achieves the fixation of two specifications of tubing, namely a fine probe and a coarse drainage tube, through the linkage of various structures. The working principle is as follows:
[0060] The device is fixed to the patient's head by an elastic fixing strap through the first connecting hole 2 and the second connecting hole 3 on the side of the base plate 1. The two connecting holes correspond to different fixing modes to ensure stable fixation.
[0061] When fixing a thin fiber optic intracranial pressure monitoring probe, the annular block 10 is assembled in the first central hole 4, so that the third groove 12 is aligned with the second groove 7; the thin probe passes through the second central hole 11 of the annular block 10, the probe wire is put into the receiving channel 9 of the snap-fit strip 8, and then the snap-fit strip 8 is snapped into the second groove 7. The wire is clamped by the snap-fit strip 8 and the two grooves. Different sizes of snap-fit strips 8 can be replaced to adapt to different thin probes.
[0062] When fixing a large ventricular drainage tube or a large ICP catheter, remove the annular block 10 inside the first central hole 4, pass the large catheter through the first central hole 4 and place it into the first groove 5. The large catheter is flexibly fixed by the limiting member 6 on the upper side of the first groove 5, so as to avoid the lumen being compressed and blocked, and at the same time prevent the catheter from shifting and falling out.
[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixation device for an intracranial pressure monitoring probe, characterized in that, The substrate (1) includes a first connecting hole (2) and a second connecting hole (3) on its side, a first central hole (4) in the middle of the substrate (1), and a first groove (5) on one side of the substrate (1). The first groove (5) and the first central hole (4) are connected, and a limiting member (6) is provided on the upper side of the first groove (5). The substrate (1) is provided with a second groove (7), the cross section of the second groove (7) is arc-shaped, and a snap-fit strip (8) is snapped in the second groove (7), and the snap-fit strip (8) is provided with a receiving channel (9) inside. The first central hole (4) is connected to a detachable annular block (10), and the annular block (10) is provided with a second central hole (11); the annular block (10) is provided with a third groove (12), and the third groove (12) is aligned with the second groove (7).
2. The intracranial pressure monitoring probe fixation device as described in claim 1, characterized in that: The substrate (1) is a circular plate, and there are two of each of the first connecting hole (2) and the second connecting hole (3); the first groove (5) and the second groove (7) are perpendicular to each other.
3. The intracranial pressure monitoring probe fixation device as described in claim 1, characterized in that: The interior of the first central hole (4) is fixedly connected to the annular block (10) by a connecting block (13).
4. The intracranial pressure monitoring probe fixation device as described in claim 1, characterized in that: The first central hole (4) is a threaded hole, and the outer side of the annular block (10) is provided with external threads. The annular block (10) is threadedly connected to the first central hole (4).
5. The intracranial pressure monitoring probe fixation device as described in claim 1, characterized in that: The snap-fit strip (8) can be snapped into the third groove (12).
6. The intracranial pressure monitoring probe fixation device as described in claim 5, characterized in that: The substrate (1) is provided with two sliding grooves (14), which are located on both sides of the first groove (5) and are parallel to the first groove (5); the limiting member (6) includes two sliding rods (15), which are slidably connected in the sliding grooves (14), and an arc plate (16) is fixedly connected to the sliding rods (15).
7. The intracranial pressure monitoring probe fixation device as described in claim 6, characterized in that: One end of the slide bar (15) is fixedly connected to a locking block (17), and the locking block (17) is provided with a limiting strip (18) at equal intervals, and the end of the limiting strip (18) is provided with a protrusion (19). The other end of the slide bar (15) is provided with a slot (20), and the side of the slot (20) is provided with a limiting groove (21), and the end of the limiting groove (21) is provided with a recessed part (22). The locking block (17) of one of the limiting members (6) can be locked into the slot (20) of the other limiting member (6), which can open the opening so that the limiting strip (18) is inserted into the limiting groove (21), and the protrusion (19) is locked into the recessed part (22).
8. The intracranial pressure monitoring probe fixation device as described in claim 7, characterized in that: The arc plate (16) has airbag strips (23) at both ends. When the two limiting members (6) are engaged, the airbag strips (23) squeeze each other to fix the probe line.
9. The intracranial pressure monitoring probe fixation device as described in claim 8, characterized in that: The substrate (1) is provided with ventilation holes (24).
10. The intracranial pressure monitoring probe fixation device as described in claim 9, characterized in that: The slide bar (15) has a notch (25) in the middle, and the snap-fit strip (8) can snap into the notch (25).