Three-dimensional positioning puncture device for external ventricular drainage

Abstract

The invention provides a three-dimensional positioning puncture device for external ventricular drainage, and relates to the technical field of medical equipment. Comprising a fixing frame which is provided with a positioning mechanism and a limiting mechanism; the positioning mechanism comprises a supporting frame, an arc-shaped frame is hinged to the supporting frame, a sliding block is arranged on the arc-shaped frame, and a positioning piece is arranged on the sliding block; an arc-shaped sliding groove is formed in the arc-shaped frame, an arc-shaped rack is arranged in the arc-shaped sliding groove, the sliding block is in sliding connection with the arc-shaped sliding groove, a first driving gear is arranged on the sliding block, the first driving gear is meshed with the arc-shaped rack, and the driving gear is provided with a power mechanism; compared with the prior art, the structure is simple, use and learning are convenient, the displacement distance can be accurately controlled, and accurate positioning is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a three-dimensional stereoscopic positioning puncture device for extracerebral ventricular drainage. Background Art

[0002] External ventricular drainage is one of the commonly used emergency techniques in neurosurgery. During the operation, it is easy for the puncture site to deviate, the puncture depth to be too shallow or too deep, etc., which may lead to unsuccessful puncture and inability to draw out cerebrospinal fluid, thus failing to achieve the purpose of emergency treatment, thereby losing the best treatment opportunity and greatly increasing the mortality rate; it may also cause damage to important structures such as the internal capsule of the brain, resulting in symptoms and signs such as hemiplegia, aphasia, and hemisensory disorder, which seriously affect the patient's prognosis and may even leave lifelong disability, inability to take care of oneself, and loss of ability to work, which will bring serious economic burden to the family and society.

[0003] The existing positioning puncture device has a complex structure and is inconvenient to use. Especially when operated by young doctors, it is more likely to cause inaccurate puncture problems. The existing device is expensive and is not convenient for popular use in grassroots hospitals. At the same time, the fixed structure of the current device can easily cause discomfort and resistance in patients.

[0004] Therefore, there is an urgent need for a three-dimensional stereoscopic positioning puncture device for external ventricular drainage to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a three-dimensional stereoscopic positioning puncture device for external ventricular drainage, which has a simple structure, is easy to use and learn, and can accurately control its displacement distance to achieve precise positioning.

[0006] The embodiment of the present invention is achieved as follows: An embodiment of the present application provides a three-dimensional stereoscopic positioning puncture device for external ventricular drainage, which includes a fixed frame, on which a positioning mechanism and a limiting mechanism are arranged; the positioning mechanism includes a support frame, on which an arc frame is hingedly arranged, on which a sliding block is arranged, and on which a positioning piece is arranged; the arc frame is provided with an arc-shaped slide groove, in which an arc-shaped rack is arranged, the sliding block is slidably connected to the arc-shaped slide groove, and a first driving gear is arranged on the sliding block, the first driving gear is meshed with the arc-shaped rack, and the driving gear is provided with a power mechanism.

[0007] In some embodiments of the present invention, a rotating shaft is disposed on the arc frame, the rotating shaft is sleeved with the fixed frame, the rotating shaft is provided with an outer gear ring, the fixed frame is provided with a second driving gear, and the second driving gear meshes with the outer gear ring.

[0008] In some embodiments of the present invention, a third driving gear is disposed on the fixing frame and meshes with the second driving gear, and the second driving gear and the third driving gear are helical gears.

[0009] In some embodiments of the present invention, the positioning member includes an outer tube and an inner tube, a driving screw is arranged inside the outer tube, the outer tube is slidably sleeved on the outer side of the inner tube, and the inner side of the inner tube is threadedly connected to the driving screw; a clamping member is arranged at the top end of the inner tube.

[0010] In some embodiments of the present invention, a controller is further included, and the controller is electrically connected to the power mechanism.

[0011] In some embodiments of the present invention, the limiting mechanism includes a base, a groove is provided on the base, limiting rods are provided on both sides of the base, the limiting rods are hinged to the base, and flexible pads are provided on the limiting rods.

[0012] In some embodiments of the present invention, a strap is provided on the base.

[0013] In some embodiments of the present invention, a limit block is provided on the other side of the third drive gear relative to the second drive gear, the limit block is hinged to the fixing frame, and the bottom of the limit block is adapted to the top shape of the second drive gear and the third drive gear.

[0014] In some embodiments of the present invention, scale lines are provided on the outer side of the arc-shaped slide groove.

[0015] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects: The existing positioning puncture device has a complex structure, is inconvenient to use, and has a high cost. The present invention provides a three-dimensional positioning puncture device for external ventricular drainage, which includes a fixed frame, on which a positioning mechanism and a limiting mechanism are arranged; the positioning mechanism includes a support frame, on which an arc frame is hingedly arranged, on which a sliding block is arranged, and on which a positioning piece is arranged; on which an arc-shaped slide groove is arranged, in which an arc-shaped rack is arranged, the sliding block is slidably connected with the arc-shaped slide groove, on which a first driving gear is arranged, which is meshed with the arc-shaped rack, and the driving gear is provided with a power mechanism.

[0016] The present invention has an arc frame hingedly provided on the support frame, a sliding block provided on the arc frame, and a positioning piece provided on the sliding block, so that medical staff can slide the sliding block and rotate the arc frame to make the positioning piece on the sliding block reach the positioning position. The whole process is simple and intuitive, easy to use and learn; at the same time, through the meshing cooperation of the first driving gear and the arc rack, it is possible to accurately control its displacement distance and achieve precise positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a front view of an embodiment of the present invention; Figure 2 is a cross-sectional view of an outer cylinder according to an embodiment of the present invention; Figure 3 It is a side view of the limiting block according to an embodiment of the present invention.

[0019] Icons: 1. Fixed frame; 2. Horizontal slide; 3. Sliding base; 4. Arc frame; 5. Arc slide; 6. Sliding block; 7. Positioning piece; 8. Clamping piece; 9. Rotating shaft; 10. External gear ring; 11. Second driving gear; 12. Limit block; 13. Limit rod; 14. Flexible pad; 15. Outer cylinder; 16. Inner cylinder; 17. Driving motor; 18. Driving screw; 19. Sliding groove; 20. Limiting cam; 21. Groove; 22. Support frame; 23. Strap. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0022] Please refer to Figure 1-3The present embodiment provides a three-dimensional stereoscopic positioning puncture device for external ventricular drainage, which includes a fixing frame 1, on which a positioning mechanism and a limiting mechanism are arranged; the positioning mechanism includes a support frame 22, on which an arc frame 4 is hingedly arranged, on which a sliding block 6 is arranged, and on which a positioning member 7 is arranged; on the arc frame 4, an arcuate slide 5 is arranged, in which an arcuate rack is arranged, the sliding block 6 is slidably connected with the arcuate slide 5, and on the sliding block 6, a first driving gear is arranged, the first driving gear is meshed with the arcuate rack, and the driving gear is provided with a power mechanism.

[0023] The existing positioning puncture device has a complex structure, is inconvenient to use, and has a high cost. The present invention is provided with an arc frame 4 hinged on the support frame 22, a sliding block 6 is provided on the arc frame 4, and a positioning member 7 is provided on the sliding block 6, so that medical staff can slide the sliding block 6 and rotate the arc frame 4 to make the positioning member 7 on the sliding block 6 reach the positioning position. The whole process is simple and intuitive, easy to use and learn; at the same time, through the meshing cooperation of the first driving gear and the arc rack, it can accurately control its displacement distance and achieve precise positioning. The overall structure of the device is simple, which greatly increases the intraoperative business, the method of use is intuitive, and the manufacturing cost is low, which is easy to popularize and practice, effectively increasing the proficiency of use and reducing the probability of misoperation.

[0024] In some embodiments of the present invention, a rotating shaft 9 is provided on the arc frame 4, the rotating shaft 9 is sleeved with the fixed frame 1, the rotating shaft 9 is provided with an outer gear ring 10, and a second driving gear 11 is provided on the fixed frame 1, and the second driving gear 11 is meshed with the outer gear ring 10. The second driving gear 11 is meshed with the outer gear ring 10, so that it can drive the arc frame 4 to rotate to a suitable position by rotating the rotating shaft 9.

[0025] Furthermore, a horizontal slide groove 2 is provided on the fixed frame 1, and the horizontal slide groove 2 is slidably connected to a sliding base 3, and an arc frame 4 is provided on the sliding base 3; medical staff can adjust the sliding base 3 so that the position of the arc frame 4 can be relatively adjusted to align with the patient's head to adapt to different patients.

[0026] In some embodiments of the present invention, a third driving gear is provided on the fixing frame 1 to mesh with the second driving gear 11, and the second driving gear 11 and the third driving gear are helical gears. The second driving gear 11 and the third driving gear are helical gears, so that the second driving gear 11 and the third driving gear are helical gears, which are provided to reduce obstruction and vibration when rotating, and the vibration transmitted to the patient's head through vibration is small, thereby avoiding damage and discomfort to the patient, and greatly reducing the patient's resistance.

[0027] In some embodiments of the present invention, the positioning member 7 includes an outer cylinder 15 and an inner cylinder 16, a driving screw 18 is arranged in the outer cylinder 15, and the driving screw 18 is provided with a driving motor 17, the outer cylinder 15 is slidably sleeved on the outer side of the inner cylinder 16, and the inner side of the inner cylinder 16 is threadedly connected with the driving screw 18; a clamping member 8 is arranged at the top of the inner cylinder 16. It can be understood that a driving structure is provided to rotate the driving screw 18, and the inner side of the inner cylinder 16 is threadedly connected with the driving screw 18, so that the outer cylinder 15 and the inner cylinder 16 can be telescoped, and the structure is stable and will not be displaced when unnecessary; the clamping member 8 can be selected from common structural settings on the market; further, a sliding groove 19 is arranged in the outer cylinder 15, and a limiting convex 20 is arranged in the inner cylinder 16 and is slidably connected with the sliding groove 19 to prevent the inner cylinder 16 from rotating due to the movement of the driving screw 18.

[0028] In some embodiments of the present invention, a controller is further included, and the controller is electrically connected to the power mechanism. The controller facilitates medical personnel to perform precise control and automatically record the positioning position.

[0029] In some embodiments of the present invention, the limiting mechanism includes a base, a groove 21 is provided on the base, and limiting rods 13 are provided on both sides of the base, the limiting rods 13 are hinged to the base, and flexible pads 14 are provided on the limiting rods 13. The limiting rods 13 can clamp the patient's face from both sides through the flexible pads 14, thereby fixing the patient's head, and the provision of the groove 21 can facilitate the placement of the patient's head.

[0030] In some embodiments of the present invention, a strap 23 is provided on the base. The strap 23 can be used to bind and fix the patient's head and chin, and can be used in conjunction with the flexible pad 14 to achieve fixation and prevent the device from being too closed to the patient's head and affecting the surgical field.

[0031] In some embodiments of the present invention, a limit block 12 is provided on the other side of the third driving gear relative to the second driving gear 11, the limit block 12 is hinged to the fixing frame 1, and the bottom of the limit block 12 is adapted to the top shape of the second driving gear 11 and the third driving gear. The setting of the limit block 12 allows medical staff to quickly fix and limit the limit block 12 with the second driving gear 11 and the third driving gear, thereby avoiding unnecessary rotation of the arc frame 4.

[0032] In some embodiments of the present invention, scale lines are provided on the outer side of the arc-shaped slide groove 5. The scale lines facilitate recording and observing the positioning position of the device to achieve accurate positioning recording.

[0033] In summary, an embodiment of the present invention provides a three-dimensional stereoscopic positioning puncture device for external ventricular drainage, which includes a fixed frame 1, on which a positioning mechanism and a limiting mechanism are arranged; the positioning mechanism includes a support frame 22, on which an arc frame 4 is hingedly arranged, on which a sliding block 6 is arranged, and on which a positioning member 7 is arranged; on the arc frame 4, an arcuate slide groove 5 is arranged, in which an arcuate rack is arranged, the sliding block 6 is slidably connected with the arcuate slide groove 5, and a first driving gear is arranged on the sliding block 6, the first driving gear is meshed with the arcuate rack, and the driving gear is provided with a power mechanism. The present invention is provided with an arc frame 4 hinged on the support frame 22, a sliding block 6 is provided on the arc frame 4, and a positioning member 7 is provided on the sliding block 6, so that medical staff can slide the sliding block 6 and rotate the arc frame 4 to make the positioning member 7 on the sliding block 6 reach the positioning position. The whole process is simple and intuitive, easy to use and learn; at the same time, through the meshing cooperation of the first driving gear and the arc rack, it is possible to accurately control its displacement distance and achieve precise positioning.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A three-dimensional positioning puncture device for external ventricular drainage, characterized in that: It includes a fixed frame, on which a positioning mechanism and a limiting mechanism are arranged; the positioning mechanism includes a supporting frame, on which an arc frame is hingedly arranged, on which a sliding block is arranged, and on which a positioning piece is arranged; the arc frame is provided with an arc-shaped slide groove, in which an arc-shaped rack is arranged, the sliding block is slidably connected with the arc-shaped slide groove, the sliding block is provided with a first driving gear, the first driving gear is meshed with the arc-shaped rack, and the driving gear is provided with a power mechanism.

2. The three-dimensional stereotactic puncture device for external ventricular drainage according to claim 1, characterized in that: The arc frame is provided with a rotating shaft, the rotating shaft is sleeved with the fixed frame, the rotating shaft is provided with an outer gear ring, the fixed frame is provided with a second driving gear, and the second driving gear is meshed with the outer gear ring.

3. The three-dimensional stereotactic puncture device for external ventricular drainage according to claim 2, characterized in that: The fixing frame is provided with a third driving gear meshing with the second driving gear, and the second driving gear and the third driving gear are helical gears.

4. The three-dimensional stereotactic puncture device for external ventricular drainage according to claim 3, characterized in that: The positioning member comprises an outer tube and an inner tube, a driving screw is arranged in the outer tube, the outer tube is slidably sleeved on the outer side of the inner tube, and the inner side of the inner tube is threadedly connected with the driving screw; a clamping member is arranged at the top end of the inner tube.

5. The three-dimensional stereotactic puncture device for external ventricular drainage according to claim 4, characterized in that: It also includes a controller, which is electrically connected to the power mechanism.

6. The three-dimensional stereotactic puncture device for external ventricular drainage according to claim 5, characterized in that: The limiting mechanism comprises a base, a groove is arranged on the base, limiting rods are arranged on both sides of the base, the limiting rods are hinged to the base, and flexible pads are arranged on the limiting rods.

7. The three-dimensional stereotactic puncture device for external ventricular drainage according to claim 6, characterized in that: A binding belt is arranged on the base.

8. The three-dimensional stereotactic puncture device for external ventricular drainage according to claim 4, characterized in that: A limiting block is provided on the other side of the third driving gear relative to the second driving gear. The limiting block is hinged to the fixing frame. The bottom of the limiting block is adapted to the top shape of the second driving gear and the third driving gear.

9. The three-dimensional stereotactic puncture device for external ventricular drainage according to claim 8, characterized in that: The outer side of the arc-shaped slide groove is provided with scale lines.

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