An intracranial micro-burr hole drainage kit

By using a motor-driven guide and an anti-excessive-depth component in the intracranial micro-drilling drainage kit, the problem of the inner tube friction affecting the direction of the drainage tube was solved, enabling more precise adjustment of the drainage tube angle and position, reducing damage to the skull and brain tissue, and improving surgical efficiency.

CN120242184BActive Publication Date: 2025-11-04BEIJING FRIENDSHIP HOSPITAL CAPITAL MEDICAL UNIV
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Patent Information

Application Number
CN202510493457.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2025-11-04
Estimated Expiration
2045-04-18

AI Technical Summary

Technical Problem

Existing intracranial micro-drilling drainage devices are easily affected by friction during the insertion of the inner tube, causing changes in the direction of the drainage tube and increasing the risk of damage to the skull and brain tissue.

Method used

The intracranial micro-drilling drainage kit, which includes a gripper with a built-in motor, an anti-deep-through component, and a guide, uses the cooperation of the first and second polyetheretherketone sheets to guide and adjust the angle and position of the drainage tube to avoid it from passing directly out of the end of the cannula. Combined with the positioning plate and airbag structure, it ensures the accuracy of the drilling depth and direction.

Benefits of technology

This effectively avoids damage to intracranial tissues caused by the drainage tube directly exiting from the end of the cannula, improves the drainage range and surgical efficiency, and reduces the risk of damage to the skull and brain tissue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of drilling drainage, in particular to a intracranial micro-drilling drainage kit. Its technical scheme comprises a guide piece, which comprises a first polyether ether ketone sheet, a second polyether ether ketone sheet, a sliding block, a guide outlet and a drainage tube. The inner wall of the sleeve is fixedly installed with the first polyether ether ketone sheet arranged obliquely. The inner wall of the sleeve is slidingly connected with the sliding block. The bottom of the sliding block is fixedly installed with the second polyether ether ketone sheet. The first polyether ether ketone sheet and the second polyether ether ketone sheet cooperate to guide the drainage tube, so that the drainage tube is led out from the pipe body of the sleeve, avoiding the drainage tube from being led out directly from the end of the sleeve, which can cause damage to the human tissue in the skull. By changing the height of the second polyether ether ketone sheet, the inclination angle of the second polyether ether ketone sheet is changed, the bending angle of the drainage tube in the vertical plane is adjusted, the position of the drainage tube in the horizontal plane is changed by rotating the sleeve, and the range of absorbing intracranial hematoma is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling drainage, in particular to an intracranial micro-drilling drainage kit. BACKGROUND

[0002] Intracranial micro-drilling drainage is a common treatment method in neurosurgery, which is to drill a small hole on the skull and then insert a drainage tube to lead the pathological products such as intracranial blood and fluid out of the body, thereby reducing intracranial pressure and relieving the disease. Compared with traditional craniotomy, micro-drilling drainage causes less trauma to patients, has a short operation time, and patients recover quickly.

[0003] The patent document with publication number CN107854162B discloses an intracranial hematoma and effusion puncture guide device, which adjusts the puncture direction by rotating the moving plate on the fixed plate, confirms the puncture angle and direction, and then inserts the puncture drainage tube into the inner sleeve tube to a proper depth to complete the puncture process. The device is detachable, the head end angle is adjustable, and it is telescopic, thereby avoiding excessive skull drilling and complications such as brain tissue bleeding during the puncture process.

[0004] The above-mentioned puncture guide device needs to adjust the inner tube sleeve before use. Since the diameter of the intracranial micro-drilling is 3-5mm, and the inner tube sleeve and the drainage tube are inserted by human, the inner tube sleeve inevitably contacts the outer tube sleeve during the insertion process, causing the head end angle to change, which affects the direction of the drainage tube. SUMMARY

[0005] The purpose of the present application is to solve the problem of the head end angle changing due to friction during the insertion of the inner tube sleeve in the background art, and to provide an intracranial micro-drilling drainage kit.

[0006] The technical solution of the present application is an intracranial micro-drilling drainage kit, which comprises a holding piece with an internal motor and a power battery, and the motor inside the holding piece is fixedly connected with a drill rod through a rotating shaft.

[0007] The anti-overdeepening assembly comprises a sleeve, which is sleeved on the rod body of the drill rod, and the sleeve is fixed with the drill rod through a positioning assembly.

[0008] The guide piece comprises a first polyether ether ketone sheet, a second polyether ether ketone sheet, a sliding block, a guide outlet and a drainage tube, the inner wall of the sleeve is fixedly installed with the first polyether ether ketone sheet arranged in an inclined manner, the inner wall of the sleeve is slidably connected with the sliding block, the bottom of the sliding block is fixedly installed with the second polyether ether ketone sheet, the second polyether ether ketone sheet is opposite to the first polyether ether ketone sheet in the inclined direction, the top surface of the second polyether ether ketone sheet is in contact with the end of the first polyether ether ketone sheet, the pipe body of the sleeve and above the sliding block is provided with the guide outlet, the inner wall of the sleeve is provided with the drainage tube, the end of the drainage tube is provided with a bent pipe structure, and the bent part of the drainage tube is in contact with the first polyether ether ketone sheet.

[0009] The drainage tube is arranged to pass out of the guide outlet along the sleeve and the first polyether ether ketone sheet and is inserted into the skull.

[0010] Optionally, the length of the second polyether ether ketone sheet is shorter than that of the first polyether ether ketone sheet, the side of the second polyether ether ketone sheet is fixedly installed with a filament, the filament extends out of the top of the sleeve, and the top of the filament is fixedly installed with a pull ball.

[0011] Optionally, the inner wall of the sleeve is provided with a containing groove for containing the first polyether ether ketone sheet, the inner wall of the sleeve is provided with a hidden cavity for containing the second polyether ether ketone sheet, the thickness of the second polyether ether ketone sheet is smaller than that of the sliding block, and the hidden cavity is fixedly installed with a limiting plate for limiting the sliding block.

[0012] Optionally, the anti-overdeepening assembly further comprises a positioning sheet, a hemispherical polyether ether ketone sheet, a transmission piece, a pressing plate, a main air bag and a branch air bag, the inner wall of the sleeve is slidably connected with the positioning sheet, the positioning sheet has a spiral structure, the inner diameter of the positioning sheet is the same as that of the sleeve, the pipe body of the sleeve is fixedly installed with the hemispherical polyether ether ketone sheet, the inner wall of the drill rod is fixedly installed with the pressing plate, the inner wall of the drill rod is slidably connected with the main air bag fixedly connected with the pressing plate, and the main air bag and the branch air bag are in communication with each other.

[0013] Optionally, a plurality of positioning sheets are arranged, the plurality of positioning sheets are distributed above and below the sleeve, and there is a spacing between adjacent two positioning sheets, and the shape of the branch air bag when inflated is the same as that of the positioning sheet.

[0014] Optionally, the transmission piece comprises a tamping rod and a butt joint rod, the inner concave surface of the hemispherical polyether ether ketone sheet is fixedly installed with the tamping rod, the side of the main air bag is fixedly installed with the butt joint rod, the butt joint rod is dislocated from the pressing plate, the diameter of the butt joint rod is larger than that of the tamping rod, and the butt joint rod is located at the end of the tamping rod.

[0015] Optionally, the positioning assembly comprises a positioning hole and a clamp, the middle part of the sleeve is provided with the positioning hole, the clamp is clamped into the positioning hole, the clamp is fixedly installed on the drill rod, there is a space of 3cm between the clamp and the drill head at the end of the drill rod, the clamp adopts a hemispherical structure, and the diameter of the clamp is 1mm.

[0016] Optionally, the diameter of the sleeve is 2mm-3mm, the length of the sleeve is 27cm-33cm, and the outer wall of the sleeve and the outer wall of the drainage tube are both provided with scale lines.

[0017] Optionally, the bottom of the holding piece is fixedly provided with a sleeve, the end of the sleeve is fixedly provided with a pull rod, the drill rod penetrates through the sleeve and extends into the inside of the holding piece, and the outer arc surface of the pull rod is fixedly provided with a switch for controlling the motor.

[0018] Compared with the prior art, the application has at least one of the following beneficial technical effects:

[0019] The first polyether ether ketone sheet and the second polyether ether ketone sheet are matched to guide the drainage tube, so that the drainage tube is led out from the pipe body of the sleeve, the drainage tube is prevented from being led out from the end of the sleeve directly, too much, and damage to human tissues in the skull is avoided, the height of the second polyether ether ketone sheet is changed to change the inclination angle of the second polyether ether ketone sheet, so that the bending angle of the drainage tube in the vertical plane is adjusted, the position of the drainage tube in the horizontal plane is changed by rotating the sleeve, and the range of absorbing intracranial hematoma is improved.

[0020] Further, in the process that the hemispherical polyether ether ketone sheet enters the skull, the positioning sheet is received in the sleeve, when the hemispherical polyether ether ketone sheet completely enters the skull, the toughness of the hemispherical polyether ether ketone sheet restores the deformation, so that the gas in the main air bag is filled into the branch air bag, so that the positioning sheet is extruded, since the positioning sheet is provided in multiple and has a spiral structure, part of the positioning sheet is extruded by the branch air bag and clamped in the position of the skull, the sleeve and the drill rod are prevented from drilling too much and damaging human tissues in the skull.

[0021] Further, the clamp 72 is clamped into the positioning hole 71, so as to fix the position of the sleeve 51 and the drill rod 4, so that the drill rod 4 drives the sleeve 51 to move when drilling, so that the sleeve 51 is inserted into the micro hole, and the clamp 72 is separated from the positioning hole by pulling the drill rod 4, so as to improve the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The overall structure schematic diagram of one embodiment of the application is given;

[0023] Figure 2 The positioning sheet structure schematic diagram of one embodiment of the application is given;

[0024] Figure 3A schematic view of a front view of a drill rod structure of an embodiment of the present application is shown in the figure;

[0025] Figure 4 A schematic view of a first polyether ether ketone sheet structure of an embodiment of the present application is shown in the figure;

[0026] Figure 5 A schematic view of a drainage tube structure of an embodiment of the present application is shown in the figure;

[0027] Figure 6 A schematic view of a second polyether ether ketone sheet structure of an embodiment of the present application is shown in the figure;

[0028] Figure 7 A schematic view of a sleeve structure of an embodiment of the present application is shown in the figure.

[0029] Reference numerals: 1, holding piece; 2, sleeve; 3, pull rod; 4, drill rod; 5, anti-overdeepening assembly; 51, sleeve pipe; 52, positioning sheet; 53, hemispherical polyether ether ketone sheet; 54, tamping rod; 55, butt joint rod; 56, pressing plate; 57, main air bag; 58, branch air bag; 6, guiding piece; 61, accommodating groove; 62, first polyether ether ketone sheet; 63, second polyether ether ketone sheet; 64, sliding block; 65, guiding outlet; 66, fine wire; 67, pull ball; 68, drainage tube; 7, positioning assembly; 71, positioning hole; 72, clamp. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application.

[0031] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0032] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example 1

[0036] This embodiment proposes an intracranial micro-drilling drainage kit, such as... Figure 1 As shown, the grip 1 includes a built-in motor and a power battery. The motor inside the grip 1 is fixedly connected to a drill rod 4 via a rotating shaft. A sleeve 2 is fixedly installed at the bottom of the grip 1, and a pull rod 3 is fixedly installed at the end of the sleeve 2. The drill rod 4 passes through the sleeve 2 and extends into the interior of the grip 1. A switch for controlling the motor is fixedly installed on the outer arc surface of the pull rod 3. The doctor holds the grip 1 in his palm, with his fingers positioned at the pull rod 3. By pressing the switch on the pull rod 3, the motor is started, causing the drill rod 4 to rotate and drill a hole.

[0037] like Figure 2 and Figure 4 As shown, the drill rod 4 is equipped with an anti-over-depth component 5, including a sleeve 51. The sleeve 51 is fitted onto the drill rod 4 and fixed to the drill rod 4 by a positioning component 7. The diameter of the sleeve 51 is 2mm-3mm, and the length of the sleeve 51 is 27cm-33cm. Scale lines are provided on the outer wall of both the sleeve 51 and the drainage tube 68. After the drill rod 4 drills the outer wall of the hole, the sleeve 51 is separated from the drill rod 4 by the positioning component 7, thus retaining the sleeve 51 on the skull.

[0038] like Figures 4 to 6As shown, the guide 6 comprises a first polyether ether ketone sheet 62, a second polyether ether ketone sheet 63, a sliding block 64, a guide outlet 65 and a drainage tube 68, the inner wall of the sleeve 51 is fixedly installed with the first polyether ether ketone sheet 62 arranged obliquely, the inner wall of the sleeve 51 is slidingly connected with the sliding block 64, the bottom of the sliding block 64 is fixedly installed with the second polyether ether ketone sheet 63, the oblique direction of the second polyether ether ketone sheet 63 is opposite to that of the first polyether ether ketone sheet 62, and the length of the second polyether ether ketone sheet 63 is shorter than that of the first polyether ether ketone sheet 62. The second polyether ether ketone sheet 63 is moved upward by sliding the sliding block 64 upward, and since the length of the second polyether ether ketone sheet 63 is shorter than that of the first polyether ether ketone sheet 62, the force required for the second polyether ether ketone sheet 63 to bend is greater than that required for the first polyether ether ketone sheet 62 to bend, and the upward movement of the second polyether ether ketone sheet 63 can rotate the first polyether ether ketone sheet 62 upward, thereby changing the inclination angle of the first polyether ether ketone sheet 62.

[0039] The top surface of the second polyether ether ketone sheet 63 is in contact with the end of the first polyether ether ketone sheet 62, the pipe body of the sleeve 51 and above the sliding block 64 is provided with the guide outlet 65, the inner wall of the sleeve 51 is provided with the drainage tube 68, the end of the drainage tube 68 is provided with a bent pipe structure, the bent part of the drainage tube 68 is in contact with the first polyether ether ketone sheet 62, and the direction of the drainage tube 68 can be adjusted by changing the inclination angle of the first polyether ether ketone sheet 62 by moving the second polyether ether ketone sheet 63 upward, and the end of the drainage tube 68 is changed in direction. Due to the blocking of the second polyether ether ketone sheet 63 and the first polyether ether ketone sheet 62, the drainage tube 68 cannot directly extend out of the end of the sleeve 51, the drainage tube 68 is inserted into the skull from the guide outlet 65 along the sleeve 51 and the first polyether ether ketone sheet 62, and the drainage tube 68 is inserted into the skull, avoiding excessive damage to the human tissue in the skull when the drainage tube 68 extends out of the end of the sleeve 51.

[0040] The side of the second polyether ether ketone sheet 63 is fixedly installed with a filament 66, the filament 66 extends out of the top of the sleeve 51, the top of the filament 66 is fixedly installed with a pull ball 67, the filament 66 and the sliding block 64 are moved upward by pulling the pull ball 67, thereby changing the bending angle of the drainage tube 68 in the vertical plane, and the position of the drainage tube 68 in the horizontal plane is changed by rotating the sleeve 51.

[0041] As shown in the drawings, Figure 4 The inner wall of the sleeve 51 is provided with a containing groove 61 for accommodating the first polyether ether ketone sheet 62, the inner wall of the sleeve 51 is provided with a hidden cavity for accommodating the second polyether ether ketone sheet 63, the thickness of the second polyether ether ketone sheet 63 is thinner than that of the sliding block 64, the hidden cavity is fixedly installed with a limiting plate for limiting the sliding block 64, and the sliding block 64 is prevented from moving into the hidden cavity. When the drill rod 4 is inserted into the sleeve 51, the drill rod 4 will press the second polyether ether ketone sheet 63 and the containing groove 61 into the hidden cavity and the containing groove 61 respectively, so as to insert the drill rod 4 into the sleeve 51.

[0042] The outer wall of the sleeve 51 and the outer wall of the drainage tube 68 are provided with scale lines, so that the doctor can observe the insertion depth.

[0043] In this embodiment, the drainage tube 68 is guided by the cooperation of the first polyether ether ketone sheet 62 and the second polyether ether ketone sheet 63, so that the drainage tube 68 is led out from the tube body of the sleeve 51, avoiding the drainage tube 68 being led out from the end of the sleeve 51 too much and causing damage to the human tissue in the skull. By changing the height of the second polyether ether ketone sheet 63, the inclination angle of the second polyether ether ketone sheet 63 is changed, so that the bending angle of the drainage tube 68 in the vertical plane is adjusted. By rotating the sleeve 51, the position of the drainage tube 68 in the horizontal plane is changed, so that the range of absorbing the intracranial hematoma is improved.

[0044] Embodiment 2

[0045] Based on the basis of embodiment 1, this embodiment provides an intracranial micro-drilling drainage kit, as shown in Figure 2 and Figure 3 The anti-over-deep assembly 5 further includes a positioning sheet 52, a hemispherical polyether ether ketone sheet 53, a transmission piece, a pressing plate 56, a main air bag 57 and a branch air bag 58. The inner wall of the sleeve 51 is slidably connected with the positioning sheet 52. The positioning sheet 52 has a spiral structure and has the same inner diameter as the sleeve 51. A plurality of positioning sheets 52 are arranged along the sleeve 51 in an up-down direction, and there is a spacing between any two adjacent positioning sheets 52. The shape of the branch air bag 58 when inflated is the same as that of the positioning sheet 52, so that the branch air bag 58 can extrude the positioning sheet 52.

[0046] The hemispherical polyether ether ketone sheet 53 is fixedly installed at the tube body of the sleeve 51. The pressing plate 56 is fixedly installed on the inner wall of the drill rod 4. The main air bag 57 is slidably connected with the pressing plate 56. The main air bag 57 and the branch air bag 58 are in communication with each other. The main air bag 57 is extruded by the pressing plate 56, so that the gas in the main air bag 57 enters the branch air bag 58. The shape of the branch air bag 58 when inflated is the same as that of the positioning sheet 52, so that the branch air bag 58 can extrude the positioning sheet 52 from the sleeve 51.

[0047] As shown in Figure 3 and Figure 7 The transmission piece includes a tamping rod 54 and a butt rod 55. The tamping rod 54 is fixedly installed on the inner concave surface of the hemispherical polyether ether ketone sheet 53. The butt rod 55 is fixedly installed on the side of the main air bag 57. The butt rod 55 is located at the end of the tamping rod 54 and is in a staggered position with the pressing plate 56. The diameter of the butt rod 55 is larger than that of the tamping rod 54.

[0048] In the process of the hemispherical polyether ether ketone piece 53 entering the skull, the deformation of the hemispherical polyether ether ketone piece 53 extrudes the butt joint rod 55, the butt joint rod 55 moves the pressing plate 56, the pressing plate 56 cooperates with the drill rod 4 to make the main air bag 57 expand, and the main air bag 57 absorbs the gas in the branch air bag 58. When the hemispherical polyether ether ketone piece 53 completely enters the skull, the toughness of the hemispherical polyether ether ketone piece 53 restores the deformation, the tamping rod 54 and the butt joint rod 55 are separated, and then the branch air bag 58 and the main air bag 57 balance the air pressure, the gas in the main air bag 57 enters the branch air bag 58 again, and at this time the branch air bag 58 extrudes the positioning piece 52, and since the positioning piece 52 is provided in multiple and in a spiral shape, the positioning piece 52 is partially extruded by the branch air bag 58 and clamped in the position of the skull.

[0049] In the embodiment, in the process of the hemispherical polyether ether ketone piece 53 entering the skull, the positioning piece 52 is received in the sleeve 51, when the hemispherical polyether ether ketone piece 53 completely enters the skull, the toughness of the hemispherical polyether ether ketone piece 53 restores the deformation, so that the gas in the pressing plate 56 is filled into the branch air bag 58, thereby making the positioning piece 52 be extruded, and since the positioning piece 52 is provided in multiple and in a spiral structure, the positioning piece 52 is partially extruded by the branch air bag 58 and clamped in the position of the skull, avoiding that the sleeve 51 and the drill rod 4 drill too much and hurt the human tissue in the skull.

[0050] Embodiment 3

[0051] Based on the above-mentioned embodiments 1 or 2, the present embodiment provides an intracranial micro-drilling drainage kit, as shown in Figure 1 and Figure 2 The positioning assembly 7 includes a positioning hole 71 and a clip 72, the middle part of the sleeve 51 is provided with the positioning hole 71, the clip 72 is fixedly installed on the drill rod 4, the clip 72 is clamped into the positioning hole 71, there is a space of 3 cm between the clip 72 and the drill bit at the end of the drill rod 4, the clip 72 adopts a hemispherical structure, and the diameter of the clip 72 is 1 mm.

[0052] The clip 72 is clamped into the positioning hole 71, thereby fixing the positions of the sleeve 51 and the drill rod 4, making the drill rod 4 drive the sleeve 51 to move when drilling, so that the sleeve 51 is inserted into the micro-hole. The drill rod 4 is separated from the sleeve 51 by pulling it with force.

[0053] In the embodiment, the clip 72 is clamped into the positioning hole 71, thereby fixing the positions of the sleeve 51 and the drill rod 4, making the drill rod 4 drive the sleeve 51 to move when drilling, so that the sleeve 51 is inserted into the micro-hole.

[0054] The above-mentioned specific embodiments are only several optional embodiments of the present application, and based on the technical solutions of the present application and the related inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations on the above-mentioned specific embodiments.

Claims

1. A micro-drilling drainage kit for intracranial cavity, characterized in that, include: A gripper (1) with a built-in motor and power battery, wherein the motor inside the gripper (1) is fixedly connected to a drill rod (4) via a rotating shaft; The anti-deep component (5) includes a sleeve (51), which is fitted onto the body of the drill rod (4) and is fixed to the drill rod (4) by a positioning component (7); The guide component (6) includes a first polyetheretherketone sheet (62), a second polyetheretherketone sheet (63), a slider (64), a guide outlet (65), and a drainage tube (68). The first polyetheretherketone sheet (62) is fixedly installed on the inner wall of the sleeve (51) at an incline. The slider (64) is slidably connected to the inner wall of the sleeve (51). The second polyetheretherketone sheet (63) is fixedly installed at the bottom of the slider (64). The second polyetheretherketone sheet (63) is connected to the first polyetheretherketone sheet (64). The polyetheretherketone sheet (62) is tilted in opposite directions. The top surface of the second polyetheretherketone sheet (63) is in contact with the end of the first polyetheretherketone sheet (62). The tube body of the sleeve (51) and above the slider (64) is provided with a guide outlet (65). A drainage tube (68) is provided through the inner wall of the sleeve (51). The end of the drainage tube (68) adopts a bent tube structure. The bent part of the drainage tube (68) is in contact with the first polyetheretherketone sheet (62). The drainage tube (68) extends from the guide outlet (65) along the cannula (51) and the first polyether ether ketone sheet (62) and is inserted into the skull.

2. The intracranial micro-drilling drainage kit according to claim 1, characterized in that: The second polyetheretherketone sheet (63) is shorter than the first polyetheretherketone sheet (62). A filament (66) is fixedly installed on the side of the second polyetheretherketone sheet (63). The filament (66) extends out of the top of the sleeve (51). A pull ball (67) is fixedly installed on the top of the filament (66).

3. The intracranial micro-drilling drainage kit according to claim 2, characterized in that: The inner wall of the sleeve (51) is provided with a receiving groove (61) for receiving the first polyether ether ketone sheet (62), and the inner wall of the sleeve (51) is provided with a hidden cavity for receiving the second polyether ether ketone sheet (63). The thickness of the second polyether ether ketone sheet (63) is thinner than the thickness of the slider (64). A limiting plate for limiting the slider (64) is fixedly installed in the hidden cavity.

4. The intracranial micro-drilling drainage kit according to claim 3, characterized in that: The anti-over-depth component (5) also includes a positioning plate (52), a hemispherical polyether etherketone sheet (53), a transfer element, a pressure plate (56), a main airbag (57), and a ventilator (58). The positioning plate (52) is slidably connected to the inner wall of the casing (51). The positioning plate (52) has a spiral structure. The inner diameter of the positioning plate (52) is the same as the inner diameter of the casing (51). The hemispherical polyether etherketone sheet (53) is fixedly installed at the tube body of the casing (51). The pressure plate (56) is fixedly installed on the inner wall of the drill rod (4). The main airbag (57) is slidably connected to the inner wall of the drill rod (4) and fixedly connected to the pressure plate (56). The main airbag (57) and the ventilator (58) are interconnected.

5. The intracranial micro-drilling drainage kit according to claim 4, characterized in that: Multiple positioning pieces (52) are provided, and the multiple positioning pieces (52) are distributed up and down along the sleeve (51), and there is a gap between two adjacent positioning pieces (52). The shape of the bronchus (58) when it is inflated is the same as the shape of the positioning piece (52).

6. The intracranial micro-drilling drainage kit according to claim 5, characterized in that: The transmission component includes a tamping rod (54) and a connecting rod (55). The tamping rod (54) is fixedly installed on the inner arc surface of the hemispherical polyether ether ketone sheet (53), and the connecting rod (55) is fixedly installed on the side of the main airbag (57). The connecting rod (55) is misaligned with the pressure plate (56). The diameter of the connecting rod (55) is larger than the diameter of the tamping rod (54), and the connecting rod (55) is located at the end of the tamping rod (54).

7. The intracranial micro-drilling drainage kit according to claim 1, characterized in that: The positioning component (7) includes a positioning hole (71) and a clamp (72). The positioning hole (71) is opened in the middle of the sleeve (51). The clamp (72) is inserted into the positioning hole (71). The clamp (72) is fixedly installed on the drill rod (4). There is a 3cm gap between the clamp (72) and the drill bit at the end of the drill rod (4). The clamp (72) adopts a hemispherical structure and the diameter of the clamp (72) is 1mm.

8. The intracranial micro-drilling drainage kit according to claim 1, characterized in that: The diameter of the sleeve (51) is 2mm-3mm, the length of the sleeve (51) is 27cm-33cm, and scale lines are provided on the outer wall of the sleeve (51) and the outer wall of the drainage tube (68).

9. The intracranial micro-drilling drainage kit according to claim 1, characterized in that: A sleeve (2) is fixedly installed at the bottom of the grip (1), and a pull rod (3) is fixedly installed at the end of the sleeve (2). The drill rod (4) passes through the sleeve (2) and extends into the interior of the grip (1). A switch for controlling the motor is fixedly installed on the outer arc surface of the pull rod (3).

Citation Information

Patent Citations

  • A puncture guide device for intracranial hematoma and effusion

    CN107854162B

  • Intracranial hematoma and hydrops piercing guide device

    CN107854162A

  • Intracranial hematoma directional drainage device and drainage method

    CN114748714A