Special multi-side-hole craniocerebral suction needle for neurosurgery robot operation

Abstract

The invention discloses a multi-side-hole craniocerebral suction needle special for neurosurgery robot operation, which comprises an outer sleeve, a tube handle is integrally formed at the end part of the outer sleeve, the length of the outer sleeve is 190-220mm, a plurality of drainage holes are formed in one end, far away from scale marks, of the outer sleeve, the diameter of the outer sleeve is any one of 1.2 mm, 1.5 mm, 1.8 mm, 2.1 mm, 2.4 mm, 2.7 mm, 3.0 mm, 3.4 mm, 3.8 mm and 4.2 mm, and the diameter of the outer sleeve is one of 1.2 mm, 1.5 mm, 1.8 mm, 2.1 mm, 2.4 mm, 2.7 mm, 3.0 mm, 3.4 mm, 3.8 mm and 4.2 mm. The drainage holes are used for meeting the suction requirement of a neurosurgery operation robot, and the diameter of each drainage hole is 0.3-1 mm. The device has the advantages that ultrahigh-efficiency suction of intracranial hematoma or abscess can be achieved, the common clinical problems of tube blocking and insufficient suction in the operation can be effectively avoided, and the hematoma and abscess removing efficiency in the neurosurgery robot operation is remarkably improved. Therefore, the operation time is shortened, the operation effect and the clinical curative effect are improved, the hospitalization cycle of a patient is shortened, the hospitalization cost is reduced, and the sick rate is reduced.

Description

Technical Field

[0001] This invention relates to the field of surgical instruments, specifically a multi-port cranial suction needle for neurosurgical robotic surgery. Background Technology

[0002] In neurosurgical clinical treatment, intracranial hematomas, abscesses, and other lesions are common critical illnesses. If they are not removed in a timely and effective manner, they can lead to increased intracranial pressure, brain tissue compression damage, and even endanger the patient's life. With the development of medical technology, neurosurgical robotic surgery, with its advantages of precise positioning, minimal trauma, high surgical accuracy, and rapid postoperative recovery, has been widely used in minimally invasive surgeries such as intracranial hematoma evacuation and abscess drainage, significantly improving surgical safety and treatment outcomes.

[0003] The cranial suction needle is a core instrument in neurosurgical robotic surgery for removing intracranial hematomas or abscesses. Its main function is to use negative pressure suction to smoothly remove pathological substances such as hematoma tissue and pus from the brain, creating a clear field of vision for subsequent surgical operations, while reducing pressure on surrounding normal brain tissue.

[0004] However, existing intracranial aspiration needles are prone to clogging during clinical applications, especially in precise neurosurgical robotic procedures. Specifically, when aspirating intracranial hematomas, the hematoma tissue often contains solid or semi-solid components such as blood clots and fragmented brain tissue, which can easily accumulate at the needle tip, causing blockage and rendering the negative pressure suction function ineffective, preventing further removal of diseased tissue. This blockage not only interrupts the surgical process and reduces efficiency but also introduces a series of potential clinical risks. On one hand, to clear the blockage, the surgeon needs to pause the precise robotic operation and repeatedly aspirate, flush, or replace the needle, undoubtedly prolonging the surgery time and increasing the risk of intraoperative infection and bleeding. Improper operation may also damage surrounding healthy nerve tissue and cerebral blood vessels. On the other hand, if the blockage is not cleared promptly and effectively, some hematoma or abscess may not be completely removed, and the remaining diseased tissue may cause postoperative complications such as increased intracranial pressure and recurrence of infection, seriously affecting the surgical outcome and patient prognosis.

[0005] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a multi-port cranial suction needle specifically for neurosurgical robotic surgery. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a multi-port cranial suction needle for neurosurgical robotic surgery, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides a multi-port cranial aspiration needle for neurosurgical robotic surgery, comprising an outer sheath with an integrally formed handle at one end. The length of the outer sheath is 190-220 mm. Multiple drainage holes are provided at the end of the outer sheath furthest from the graduation line. The diameter of the outer sheath is any one of 1.2 mm, 1.5 mm, 1.8 mm, 2.1 mm, 2.4 mm, 2.7 mm, 3.0 mm, 3.4 mm, 3.8 mm, and 4.2 mm to adapt to the aspiration requirements of neurosurgical robots. The diameter of the drainage holes is 0.3-1 mm.

[0008] In one or more embodiments of the present invention, the outer sleeve is provided with a plurality of scale lines, the area between two scale lines is an opening area, the drainage holes are located in the opening area, and there are 4 drainage holes in each opening area.

[0009] In one or more embodiments of the present invention, the included angle between the drainage holes in each of the opening areas is 90°.

[0010] In one or more embodiments of the present invention, an inner core is slidably connected to the outer tube, the outer diameter of the inner core matching the inner diameter of the outer tube, and the inner core being able to be pulled out from the outer tube.

[0011] In one or more embodiments of the present invention, the length of the inner core is greater than that of the outer tube, and one end of the inner core is integrally formed with an arc-shaped protective end.

[0012] In one or more embodiments of the present invention, the end of the inner core away from the outer tube is integrally formed with a core handle, the cross-section of the core handle is an isosceles trapezoid, and the maximum diameter of the core handle is greater than the inner diameter of the outer tube.

[0013] In one or more embodiments of the present invention, a pull-in step is formed between the core shank and the tube shank.

[0014] In one or more embodiments of the present invention, when the core shank is in contact with the tube shank, the protective end protrudes from the outer tube.

[0015] In one or more embodiments of the present invention, both the outer tube and the inner core are made of medical-grade stainless steel.

[0016] In one or more embodiments of the present invention, the handle is integrally formed with a plurality of bosses.

[0017] The beneficial effects of this invention are: it enables ultra-efficient aspiration of intracranial hematomas or abscesses, effectively avoiding common clinical problems such as intraoperative tube blockage and insufficient aspiration, and significantly improving the efficiency of hematoma and abscess clearance during neurosurgical robotic surgery. This, in turn, shortens the operation time, improves surgical outcomes and clinical efficacy, while also shortening the patient's hospital stay, reducing hospitalization costs, and lowering the disability rate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a multi-foramen cranial suction needle for neurosurgical robotic surgery according to one embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a multi-foramen cranial suction needle for neurosurgical robotic surgery according to one embodiment of the present invention. Figure 2 ; Figure 3 for Figure 2 Schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the structure of a multi-foramen cranial suction needle for neurosurgical robotic surgery according to one embodiment of the present invention. Figure 3 .

[0020] Explanation of reference numerals in the attached figures: 1. Outer tube; 11. Drainage hole; 12. Scale line; 13. Tube handle; 2. Inner core; 21. Protective end; 22. Core handle; 3. Insertion / removal step. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: like Figures 1 to 4As shown, a multi-port cranial aspiration needle for neurosurgical robotic surgery in one embodiment of the present invention includes an outer tube 1, which is a slender, rigid tube with a total length set between 190mm and 220mm. This length range is optimized to accommodate the depth requirements of most adult cranial surgeries, ensuring sufficient operating space and precise puncture depth for the robotic arm during operation. The diameter of the outer tube 1 can be selected according to specific surgical needs, and its specifications are any one of 1.2mm, 1.5mm, 1.8mm, 2.1mm, 2.4mm, 2.7mm, 3.0mm, 3.4mm, 3.8mm, and 4.2mm. This multi-specification design aims to perfectly adapt to different models and precision neurosurgical robotic gripping units and allows for personalized selection for hematomas or abscesses of different viscosity and volume.

[0023] The end of the outer cannula 1 inserted into the lesion cavity is the working end. Within a certain area of ​​this working end, multiple drainage holes 11 are formed. The diameter of these drainage holes 11 ranges from 0.3 mm to 1.0 mm. The presence of multiple drainage holes 11 fundamentally changes the traditional single-hole suction method. During operation, even if some drainage holes 11 are temporarily blocked by large blood clots or tissue fragments, the other drainage holes 11 remain open and continue to perform their suction function, thus effectively avoiding surgical interruption caused by complete blockage of a single cannula. Simultaneously, the multiple drainage holes 11 create a larger total suction area, allowing for more efficient drainage of liquid and semi-liquid components, improving clearance efficiency.

[0024] The proximal end of the outer tube 1 is the operating end, on which a handle 13 is integrally formed. The handle 13 is designed with a structure that facilitates hand-holding or robot clamping and fixation. For example, multiple annular protrusions can be integrally formed on its outer surface to increase friction, making it easier for the operator or robot to hold it stably and to quickly and reliably connect it to the connecting tube of the external negative pressure adsorption device.

[0025] In use, the gripping arm of the neurosurgical robot precisely clamps the handle 13 or the proximal end of the outer cannula 1 at a suitable position. Guided by the robot's navigation system, the distal end of the outer cannula 1 is slowly and precisely inserted into the pre-planned hematoma or abscess cavity. Subsequently, the handle 13 is connected to a continuous negative pressure source. After the negative pressure is turned on, the diseased tissue is drawn into the lumen of the outer cannula 1 through multiple drainage holes 11 under negative pressure and is eventually discharged from the body. Due to the synergistic effect of multiple drainage holes 11, the suction process is smoother and less prone to blockage, enabling efficient and thorough lesion removal, thereby shortening the operation time, reducing the risk of damage caused by repeated tube patency testing or instrument replacement, and improving patient prognosis.

[0026] Example 2: Based on Embodiment 1, this embodiment further optimizes the layout of the drainage hole 11 and adds an inner core structure to prevent the cannula from deforming during puncture, making the device more practical.

[0027] On the wall of the outer tube 1, multiple graduation lines 12 are arranged at fixed intervals along its axial direction. Each pair of adjacent graduation lines 12 defines an opening area. Drainage holes 11 are regularly distributed within these opening areas. Preferably, each opening area contains four drainage holes 11, which are evenly distributed circumferentially along the outer tube 1, with an included angle of 90° between adjacent drainage holes 11. This side-hole layout ensures that the suction needle has drainage holes 11 facing laterally at any circumferential angle, allowing for comprehensive suction of the cavity in conjunction with the opening of the outer tube 1, further improving suction efficiency and thoroughness. The graduation lines 12 also help the surgeon to judge the insertion depth of the suction needle in real time during the procedure.

[0028] To further enhance the rigidity and stability of the device during robot-guided puncture and prevent the slender outer tube 1 from bending when penetrating brain tissue or encountering resistance, thus affecting puncture accuracy, an inner core 2 is added inside the outer tube 1 in this embodiment.

[0029] The inner core 2 is a solid or rod-shaped component with a certain strength. Its outer diameter is precisely matched with the inner diameter of the outer tube 1, allowing the inner core 2 to slide tightly into the inner cavity of the outer tube 1. When the robot performs the puncture step, the inner core 2 is pre-inserted into the outer tube 1, and the two combine to form a composite structure with stronger overall rigidity. This greatly improves the bending resistance and trajectory stability during the puncture process, ensuring that the robot can accurately reach the target point according to the predetermined path.

[0030] The inner core 2 is slightly longer than the outer tube 1. At its distal end, there is an integrally formed arc-shaped protective end 21. When the inner core 2 is fully inserted into the outer tube 1, the arc-shaped protective end 21 will slightly protrude from the distal end of the outer tube 1. This smooth arc design has two important functions: first, during the puncture process, it acts as a leading blunt tip, gently pushing aside rather than cutting or puncturing normal nerve and blood vessel tissue along the way, thus providing protection; second, it can prevent diseased tissue or blood clots from prematurely blocking the main port of the outer tube 1 during puncture.

[0031] At the proximal end of the inner core 2, a core shank 22 is integrally formed. The cross-section of the core shank 22 is an isosceles trapezoid, and its maximum diameter is larger than the inner diameter of the outer tube 1. This design ensures that when the inner core 2 is inserted into place, the core shank 22 will be locked at the proximal end of the outer tube 1, forming a limiting structure to prevent the inner core 2 from accidentally slipping out under gravity or during operation and completely entering the patient's skull, causing a serious medical accident.

[0032] When the core shank 22 is aligned with the handle 13 at the proximal end of the outer sheath 1, it indicates that the inner core 2 has been fully inserted. At this point, the protective end 21 protrudes precisely from the distal end of the outer sheath 1. A natural insertion / removal step 3 is formed between the core shank 22 and the handle 13. After the robot completes the puncture and the distal end of the outer sheath 1 accurately reaches the lesion cavity, the operator or another instrument of the robot can easily and effortlessly pull the inner core 2 completely out of the outer sheath 1 by grasping or pressing against this insertion / removal step 3, thus preparing a channel for subsequent negative pressure suction operations.

[0033] The outer sheath 1 and inner core 2 are preferably made of medical-grade stainless steel, which has excellent biocompatibility, sufficient mechanical strength, rigidity and corrosion resistance, can withstand high-pressure steam sterilization, and meet the strict requirements of neurosurgical instruments.

[0034] In use, select a suction needle of appropriate diameter and length based on imaging data. Insert the inner core 2 into the outer cannula 1, making the protective end 21 protrude, with the core handle 22 fitting against the tube handle 13. The surgical robot grips the area of ​​the tube handle 13, and under real-time guidance from the navigation system, punctures the outer cannula 1 with the inner core 2 along a predetermined trajectory until the distal end of the outer cannula 1 is completely inside the target lesion cavity. After puncture, the inner core 2 is smoothly withdrawn using the extraction step 3, leaving the outer cannula 1 in place as the working channel. Connect the tube handle 13 to the negative pressure suction device. After activation, negative pressure is transmitted through the lumen of the outer cannula 1 to each drainage hole 11. Under the action of negative pressure, hematoma or abscess is sucked into the lumen from various directions through multiple drainage holes 11 and discharged. Because there are multiple drainage holes 11, suction can continue even if individual holes are blocked. The surgeon can slightly rotate or move the outer cannula 1 within a small range to change the orientation of the drainage holes 11, achieving multi-directional, efficient, and thorough removal of the lesion cavity.

[0035] Compared with existing technologies, the advantages of this invention are: it enables ultra-efficient aspiration of intracranial hematomas or abscesses, effectively avoiding common clinical problems such as intraoperative tube blockage and insufficient aspiration, and significantly improving the efficiency of hematoma and abscess clearance in neurosurgical robotic surgery. This, in turn, shortens the operation time, improves surgical outcomes and clinical efficacy, while also shortening the patient's hospital stay, reducing hospitalization costs, lowering the morbidity rate, and ultimately effectively improving patient prognosis.

[0036] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A multi-port cranial suction needle for neurosurgical robotic surgery, comprising an outer sheath (1), wherein the end of the outer sheath (1) is integrally formed with a handle (13), characterized in that, The length of the outer tube (1) is 190-220mm. Multiple drainage holes (11) are provided at one end of the outer tube (1) away from the scale line (12). The diameter of the outer tube (1) is any one of 1.2mm, 1.5mm, 1.8mm, 2.1mm, 2.4mm, 2.7mm, 3.0mm, 3.4mm, 3.8mm, and 4.2mm to adapt to the suction requirements of the neurosurgical robot. The diameter of the drainage hole (11) is 0.3-1mm.

2. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 1, characterized in that, The outer tube (1) is provided with multiple scale lines (12), and the area between two scale lines (12) is an opening area. The drainage holes (11) are located in the opening area, and there are 4 drainage holes (11) in each opening area.

3. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 2, characterized in that, The included angle between the drainage holes (11) in each of the opening areas is 90°.

4. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 1, characterized in that, The outer tube (1) has an inner core (2) slidably connected to it. The outer diameter of the inner core (2) matches the inner diameter of the outer tube (1) and can be pulled out from the outer tube (1).

5. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 4, characterized in that, The inner core (2) is longer than the outer tube (1), and one end of the inner core (2) is integrally formed with an arc-shaped protective end (21).

6. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 5, characterized in that, The inner core (2) has a core handle (22) integrally formed at the end away from the outer tube (1). The cross section of the core handle (22) is an isosceles trapezoid, and the maximum diameter of the core handle (22) is greater than the inner diameter of the outer tube (1).

7. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 6, characterized in that, A pull-in step (3) is formed between the core handle (22) and the tube handle (13).

8. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 6, characterized in that, When the core shank (22) is in contact with the tube shank (13), the protective end (21) protrudes from the outer tube (1).

9. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 3, characterized in that, Both the outer tube (1) and the inner core (2) are made of medical-grade stainless steel.

10. The multi-port cranial suction needle for neurosurgical robotic surgery as described in claim 1, characterized in that, The handle (13) has multiple protrusions integrally formed on it.

Images