Waterproof jacket for water medium single-axis spine endoscope imaging system interface
By designing a waterproof sleeve for spinal endoscopy, the sealing problem between the interface of the spinal endoscopy imaging system and the camera handle is solved, and the clarity of imaging during surgery is achieved and the equipment protection is prevented from liquid leakage and contamination.
Patent Information
- Application Number
- CN202411493602.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-01-10
AI Technical Summary
In the prior art, the connection between the endoscopic spinal imaging system interface and the universal camera handle lacks an effective sealing and waterproofing device, resulting in leakage of flush fluid during surgery, lens contamination, increasing surgical risk and damaging the equipment.
A waterproof sleeve for the interface of a water medium monoaxial spinal endoscopic imaging system is designed, including an elastic first waterproof sleeve and a second waterproof sleeve for the receiving interface, equipped with an elastic sealing ring and a limit fixing structure to cover and Isolate the rinse fluid to ensure that the liquid is drained out of the surgical area.
Effectively prevent irrigation fluid from entering the imaging system interface, keep the surgical field clear, reduce the risk of complications, protect precision components, simplify the surgical process and extend the life of the equipment.
Smart Images
Figure CN119279485A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of medical devices, and in particular to a waterproof cover for an interface of a water medium spinal endoscope imaging system. Background Art
[0002] Spinal endoscopy has been successfully applied in the field of spinal surgery. Among them, single-axis spinal endoscopy under water medium has developed rapidly in recent years. It has the advantages of less trauma, less bleeding, clear vision, flexible operation, low infection rate, and fast postoperative recovery. In addition, its indications are constantly broadened, and the spectrum of diseases treated is constantly expanding. It has been gradually adopted by more and more spinal surgeons and has been widely used, enabling patients with spinal diseases to receive accurate and effective treatment and quickly return to life and work. After entering the bony spinal canal through the intervertebral foramen or interlaminar space to establish an extra-endoscopic spinal working channel, the spinal endoscope is introduced, and further endoscopic tools such as visual endoscopic ring saws, bone knives, lamina forceps, grasping forceps, etc. are used through the intra-endoscopic working channel of the spinal endoscope to achieve fine exposure and precise decompression of the nerve roots. This is the essence of any spinal endoscopic surgical technique, and this is entirely dependent on the clear surgical field provided by the water medium during the cavity creation and flushing process. During the operation, saline is injected into the bony spinal canal through the spinal endoscope water inlet channel. The drip rate is controlled to make the perfusion pressure less than the epidural hydrostatic pressure, so as to obtain a stable and appropriate flushing pressure, which is conducive to the hemostasis of tiny blood vessels and keeps a suitable distance between the surrounding wall tissues, thereby obtaining a satisfactory surgical operation space. Due to the continuous perfusion, saline overflows through the inner and outer working channels of the spinal endoscope, and flushes out small blood clots, nucleus pulposus annulus fibrosus debris, bone debris, etc., to prevent contamination of the camera lens and obtain a clear field of view.
[0003] The interface size of the existing rigid single-axis spinal endoscope objective lens imaging system is consistent, and the imaging system interface is connected to the universal camera handle through a non-sealed elastic buckle. However, due to the lack of a dedicated sealing and waterproof device at this site, before surgery, the common method is to use a sterile non-dedicated surgical incision film in advance for waterproof sealing and fixation, which increases the surgical preparation time. Moreover, during the surgical operation, the above-mentioned waterproof fixing method is difficult to achieve complete sealing, and the flushing fluid inevitably flows along the mirror body and the mirror rod through the incompletely sealed gap into the connection between the objective lens imaging system interface and the camera handle, causing the lens to be contaminated by flushing saline, blood clots or other tissue debris, making the image presented by the objective lens system during the operation blurred. If the operation continues under a non-clear surgical field of view, the risk of normal tissue damage such as segmental blood vessels, dura mater, nerve roots, spinal cord, etc. during the operation will increase sharply, resulting in serious surgical complications. Therefore, when lens contamination occurs during surgery, the surgery often has to be interrupted, the spinal endoscope is removed from the camera handle, cleaned, wiped, and then reconnected, and the original waterproof seal is re-fixed. Lens contamination may occur multiple times during surgery and forced to be re-cleaned and re-fixed, which seriously interferes with the surgical process, increases surgical unsafe factors, and prolongs unnecessary surgical time. In addition, intraoperative fluids may also enter the camera handle along the above path, damaging electronic components due to moisture, and ultimately causing damage to expensive surgical instruments. Summary of the invention
[0004] Therefore, the technical problem to be solved by the present invention is that the sterile non-dedicated surgical incision film used in the prior art to provide a poor waterproof seal at the connection between the imaging system interface and the universal camera handle, thereby providing a waterproof cover for the interface of a water medium single-axis spinal endoscope imaging system.
[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:
[0006] The present invention provides a waterproof cover for an interface of an aqueous medium single-axis spinal endoscope imaging system, comprising: a main body, wherein the main body comprises a first waterproof cover and a second waterproof cover that are connected to each other, wherein the first waterproof cover is an elastic cover and is used to be tightly sleeved on an objective lens rod of a spinal endoscope; the inner diameter of the second waterproof cover is greater than the inner diameter of the first waterproof cover and is used to accommodate an interface between the objective lens rod of the spinal endoscope and a camera handle, and a cable of the camera handle extends from one end of the second waterproof cover away from the first waterproof cover.
[0007] Furthermore, an elastic sealing ring convex toward the center of the first waterproof casing is provided on the inner wall of the first waterproof casing, and the elastic sealing ring is used to seal the gap between the objective lens rod and the first waterproof casing.
[0008] Furthermore, along the axial direction of the first waterproof casing, the elastic sealing rings are respectively arranged at the head, waist and tail of the first waterproof casing.
[0009] Furthermore, the main body also has a third waterproof casing, which is a truncated cone-shaped casing as a whole, with a small end of the third waterproof casing connected to the first waterproof casing, and a large end of the third waterproof casing connected to the second waterproof casing.
[0010] Furthermore, a bottom folded edge perpendicular to the side wall of the second waterproof casing is provided at one end of the second waterproof casing away from the first waterproof casing, and a clearance hole is reserved at the center of the bottom folded edge for the cable of the camera handle to pass through.
[0011] Furthermore, an elastic tightening ring is provided at the clearance hole, which is used to limit and fix the end of the second waterproof casing away from the first waterproof casing to the cable of the camera handle.
[0012] Furthermore, the body is made of a transparent and sterile material.
[0013] Furthermore, the thickness of the substrate used in the main body ranges from 0.4 mm to 0.6 mm.
[0014] Furthermore, the length of the first waterproof casing is in the range of 12 mm to 16 mm; the length of the second waterproof casing is in the range of 240 mm to 260 mm; and the length of the third waterproof casing is in the range of 12 mm to 25 mm.
[0015] Furthermore, the outer diameter of the first waterproof casing is in the range of 8mm-12mm; the outer diameter of the second waterproof casing is in the range of 50mm-70mm; and the outer diameter of the elastic tightening ring is in the range of 24mm-36mm.
[0016] The technical solution of the present invention has the following advantages:
[0017] The present invention provides a waterproof sleeve for the interface of an aqueous medium single-axis spinal endoscope imaging system, wherein the first waterproof sleeve is an elastic sleeve, which is used to be tightly sleeved on the objective lens rod of the spinal endoscope, and the first waterproof sleeve is attached to the objective lens rod by means of the elastic retractable property of the first waterproof sleeve itself to form a sealed shield, and at the same time, the first waterproof sleeve can be limited and fixed on the objective lens rod; moreover, the inner diameter of the second waterproof sleeve is larger than the inner diameter of the first waterproof sleeve, and is used to accommodate the interface between the objective lens rod of the spinal endoscope and the camera handle, and the cable of the camera handle extends from one end of the second waterproof sleeve away from the first waterproof sleeve, and the second waterproof sleeve is fixed on the objective lens rod. The water jacket can completely cover the interface connection between the objective rod and the camera handle, the camera handle, and part of the cable of the camera handle, isolating the flushing fluid overflowing from the spinal endoscope channel accompanied by blood clots, nucleus pulposus fiber ring debris, bone debris and other tissues, so that the liquid is drained out of the surgical area through the outer wall of the second waterproof jacket, thereby preventing the flushing fluid from entering the interface between the objective rod and the camera handle during the operation, contaminating and damaging the lens, and interfering with the intraoperative imaging, ensuring clear and smooth imaging during the operation, facilitating the smooth progress of the operation, and at the same time avoiding damage to precision components caused by excessive humidity, and facilitating the daily maintenance of expensive surgical instruments. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a schematic diagram of a waterproof cover for an interface of a water medium single-axis spinal endoscope imaging system in an embodiment of the present invention;
[0020] Figure 2 It is a front view of a waterproof cover for an interface of a water medium single-axis spinal endoscope imaging system in an embodiment of the present invention;
[0021] Figure 3 for Figure 2 A magnified schematic diagram of the local structure;
[0022] Figure 4 It is a top view of a waterproof cover for an interface of a water medium single-axis spinal endoscopy imaging system in an embodiment of the present invention;
[0023] Figure 5 It is a bottom view of a waterproof cover for an interface of a water medium single-axis spinal endoscope imaging system in an embodiment of the present invention;
[0024] Figure 6This is a schematic diagram of step 1 of the assembly process of the waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system in an embodiment of the present invention;
[0025] Figure 7 It is a schematic diagram of step 2 of the assembly process of the waterproof cover for the interface of the water medium single-axis spinal endoscope imaging system in an embodiment of the present invention;
[0026] Figure 8 It is a schematic diagram of step three of the assembly process of the waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system in an embodiment of the present invention;
[0027] Fig. 9 Schematic diagram of step four of the assembly process of the waterproof cover for the interface of the aqueous medium single-axis spinal endoscopic imaging system in an embodiment of the present invention.
[0028] Description of reference numerals:
[0029] 1. Main body; 2. First waterproof casing; 3. Second waterproof casing; 4. Elastic sealing ring; 5. Third waterproof casing; 6. Clearance hole; 7. Elastic tightening ring; 8. Objective lens rod; 9. Camera handle; 10. Cable. DETAILED DESCRIPTION
[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.
[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0034] like Figure 1 As shown, this embodiment provides a waterproof cover for the interface of an aqueous medium single-axis spinal endoscope imaging system, comprising: a main body 1, the main body 1 comprises a first waterproof cover body 2 and a second waterproof cover body 3 connected to each other, the first waterproof cover body 2 is an elastic cover, used for being tightly sleeved on the objective lens rod 8 of the spinal endoscope; the inner diameter of the second waterproof cover body 3 is larger than the inner diameter of the first waterproof cover body 2, and is used to accommodate the interface between the objective lens rod 8 of the spinal endoscope and the camera handle 9, and the cable 10 of the camera handle 9 extends from one end of the second waterproof cover body 3 away from the first waterproof cover body 2.
[0035] The waterproof cover for the interface of the aqueous medium uniaxial spinal endoscope imaging system provided in this embodiment, the first waterproof cover body 2 is an elastic cover, which is used to be tightly sleeved on the objective lens rod 8 of the uniaxial spinal endoscope, and the first waterproof cover body 2 is attached to the objective lens rod 8 by means of the elastic retraction property of the first waterproof cover body 2 itself, so as to form a sealed shield, and at the same time, the first waterproof cover body 2 can be limited and fixed on the objective lens rod 8; moreover, the inner diameter of the second waterproof cover body 3 is larger than the inner diameter of the first waterproof cover body 2, and is used to accommodate the interface between the objective lens rod 8 of the spinal endoscope and the camera handle 9, and the cable of the camera handle 9 extends from the end of the second waterproof cover body 3 away from the first waterproof cover body 2 The second waterproof sleeve 3 can completely cover the interface connection between the objective lens rod 8 and the camera handle 9, the camera handle 9, and part of the cable 10 of the camera handle 9, isolating the flushing fluid overflowing from the spinal endoscope channel accompanied by blood clots, nucleus pulposus fiber ring debris, bone debris and other tissues, so that the liquid is drained to the outside of the surgical area through the outer wall of the second waterproof sleeve 3, thereby preventing the flushing fluid from entering the interface between the objective lens rod 8 and the camera handle 9 during the operation, contaminating and damaging the lens, and interfering with the imaging during the operation, ensuring clear and smooth imaging during the operation, which is conducive to the smooth progress of the operation, while avoiding damage to precision components caused by excessive humidity, and facilitating the daily maintenance of expensive surgical instruments.
[0036] like Figure 2 , Figure 3 As shown, the inner wall of the first waterproof casing 2 is provided with an elastic sealing ring 4 protruding toward the center of the first waterproof casing 2, and the elastic sealing ring 4 is used to seal the gap between the objective lens rod 8 and the first waterproof casing 2. For example, along the axial direction of the first waterproof casing 2, the elastic sealing ring 4 can be respectively provided at the head, waist and tail of the first waterproof casing 2. For example, the planes where the elastic sealing rings 4 are located are completely parallel to each other, and the elastic sealing rings 4 at the waist and tail are completely consistent with the elastic sealing ring 4 at the head in shape, structure and material.
[0037] For example, the cross section of the elastic sealing ring 4 parallel to its axial direction can be a solid circle, and the diameter of the solid circle can range from 0.5mm to 1.5mm, for example, the diameter of the solid circle can be 1.2mm. The cross section of the elastic sealing ring 4 parallel to its radial direction is a hollow circular ring, and the outer ring diameter of the hollow circular ring can range from 8mm to 12mm, for example, it can be 10mm. For example, the inner ring diameter of the elastic sealing ring 4 can be the outer ring diameter of the hollow circular ring-2×the cross-sectional solid circular diameter of the elastic sealing ring 4. For example, the horizontal cross section of the first waterproof casing 2 is a hollow circle, and the diameter can be the outer ring diameter of the hollow circular ring of the elastic sealing ring 4-the cross-sectional solid circular diameter of the elastic sealing ring 4. For example, the height of the first waterproof casing 2 can range from 12mm to 16mm, for example, the height of the first waterproof casing 2 can be 14mm.
[0038] The main body 1 further comprises a third waterproof casing 5, which is a truncated cone-shaped casing as a whole. The small end of the third waterproof casing 5 is connected to the first waterproof casing 2, and the large end of the third waterproof casing 5 is connected to the second waterproof casing 3. For example, the vertex angle of the third waterproof casing 5 is 100 degrees, the height range of the third waterproof casing 5 can be 12 mm-18 mm, for example, the height of the third waterproof casing 5 can be 21 mm, the length of the truncated cone generatrix of the third waterproof casing 5 can be its height / Sin40°, the radius of the hollow circle at the nearest end of the truncated cone can be consistent with the radius of the hollow circle of the cylinder of the first waterproof casing 2, and the radius of the hollow circle at the farthest end of the truncated cone can be consistent with the radius of the hollow circle of the cylinder of the second waterproof casing 3. The farthest end of the third waterproof casing 5 is connected to the second waterproof casing 3, and the intersection angle between the truncated cone generatrix of the third waterproof casing 5 and the long axis of the cylinder of the second waterproof casing 3 can be 130°. For example, the diameter of the cylindrical hollow circle of the second waterproof casing 3 can be 60 mm, and the height can be 250 mm. Finally, the height of the entire body 1 can be about 285 mm.
[0039] like Figure 4 , Figure 5As shown, the end of the second waterproof casing 3 away from the first waterproof casing 2 is provided with a bottom fold perpendicular to the side wall of the second waterproof casing 3, and the center of the bottom fold is reserved for a clearance hole 6 for the cable of the camera handle 9 to pass through. For example, the diameter range of the clearance hole 6 can be 24mm-36mm, for example, the diameter of the clearance hole 6 can be 30mm. For example, the cross section of the clearance hole 6 parallel to its axial direction can be a solid circle, and the diameter range of the solid circle can be 0.5mm-1.5mm, for example, the diameter of the solid circle can be 1.2mm. For example, the inner circle of the clearance hole 6 can be provided with an elastic tightening ring 7, which is used to limit and fix the end of the second waterproof casing 3 away from the first waterproof casing 2 on the cable of the camera handle 9. For example, the diameter of the hollow circular ring inner ring of the elastic tightening ring 7 is the diameter of the hollow circular ring outer ring of the elastic tightening ring 7-2×the solid circular diameter of the cross section of the elastic tightening ring 7.
[0040] The main body 1 is made of transparent and sterile material.
[0041] The base material used in the body 1 has a thickness ranging from 0.4 mm to 0.6 mm.
[0042] Among them, the length range of the first waterproof casing 2 is 12mm-16mm; the length range of the second waterproof casing 3 is 240mm-260mm; the length range of the third waterproof casing 5 is 12mm-25mm.
[0043] Among them, the outer diameter range of the first waterproof casing 2 is 8mm-12mm; the outer diameter range of the second waterproof casing 3 is 50mm-70mm; the outer diameter range of the elastic tightening ring 7 is 24mm-36mm.
[0044] Specifically, the base material selected for the main body 1 is elastic rubber. When used in surgery, the elastic expansion property of the base material itself facilitates the installation of a waterproof cover on the rigid spinal endoscope. When the waterproof cover covers the interface of the objective lens imaging system, the elastic sealing ring 4 naturally shrinks after the tension is relaxed due to the elastic retraction property of the base material itself, and the hoop is attached to the objective lens rod 8 to form a sealed shield to prevent liquid from flowing into the connection between the objective lens interface and the camera handle 9.
[0045] Preferably, the substrate is an integral structure. Optionally, the rubber is at least one of styrene-butadiene rubber, nitrile rubber, natural rubber, butyl rubber, polybutadiene rubber, fluororubber, preferably, formed from natural rubber latex or from a natural rubber latex matrix mixed with one or more additives. Suitable formulations of natural rubber latex and synthetic materials are known in the rubber field.
[0046] The minimum breaking force of the substrate is at least 15.0N-20.0N, and the elongation at break is at least 700%-1000%. Optionally, it is widely used by rubber product manufacturers in production process control and product quality control. The elasticity test method of the rubber product is included in this application, that is, the substrate or the test piece cut from the waterproof cover is stretched to break by a tensile testing machine, and the force and elongation at break are measured.
[0047] In order to meet the requirements used in surgery, the base material used in this application must have a certain strength. This application includes a test method for the thickness of the rubber product, that is, unfold the base material or the waterproof cover to ensure that it is not over-stretched in any direction, cut it with scissors along the long axis of the base material or the waterproof cover, and measure the single-layer thickness with a micrometer or thickness gauge after unfolding. Samples can be taken from different parts, measured, recorded and the average value calculated.
[0048] In order to achieve the purpose of sealing and waterproofing, the substrate used in this application must be water-resistant and impermeable. Optionally, it is widely used by rubber product manufacturers in production process control and product quality control. The rubber water resistance test method is included in this application, that is, in a constant temperature device controlling a specified temperature, the substrate or the waterproof cover sample is immersed in 50±1℃ distilled water for 1 hour. After taking it out, it should be observed that there should be no obvious color change, no floc-like visible matter, and the tearing force should be no less than 15.0N.
[0049] In order to clearly identify and use the function keys of the camera handle 9 during surgery, preferably, the waterproof cover in the present application is formed of a transparent material with smooth inner and outer wall surfaces. Rubber is usually transparent and substantially colorless in a dry state. Some types of rubber can naturally have slightly different tones, so the selected substrate preparation should not contain added colorants or sunscreens. Preferably, the waterproof cover in the present application preferably has a substrate with a haze value of no more than 60%. According to the ASTM standard D1003-00 for the definition of haze value, it is preferably widely used by rubber product manufacturers in production process control and product quality control. According to the method disclosed in the embodiment, the haze value is determined using a UV visible spectrophotometer. Preferably, the haze value is measured at the midpoint of the first waterproof cover body 2 and the midpoint of the third waterproof cover body 5, and the average value of multiple measurements is taken.
[0050] In order to achieve use in a sterile surgical environment, the present application is used after γ-ray sterilization or ethylene oxide sterilization. Preferably, the substrate may contain organic or inorganic antibacterial components. According to the requirements for the antibacterial properties of medical rubber products disclosed in the embodiments, the antibacterial rate for Escherichia coli is 99.5%, and the antibacterial rate for Staphylococcus aureus is 99.2%.
[0051] During assembly, first take out the disinfected single-axis spinal endoscope and the sterilized waterproof cover.
[0052] Step 1: If Figure 6 As shown, the first waterproof casing 2 is appropriately expanded so that the objective lens imaging interface and the tail end of the objective lens rod 8 enter the first waterproof casing 2 in sequence along the opening of the first waterproof casing 2 until the elastic sealing ring 4 at the tail end of the first waterproof casing 2 is located at the base of the objective lens rod 8, and the objective lens interface is now located at the third waterproof casing 5.
[0053] Step 2: If Figure 7 As shown, the expansion of the first waterproof sleeve 2 is relaxed, so that the first waterproof sleeve 2 and each elastic sealing ring 4 naturally shrink and adhere closely to the objective lens rod 8, completely closing the gap between the objective lens rod 8 and the inner wall of the waterproof sleeve, and achieving limited fixation through the elastic shrinkage force.
[0054] Step 3: If Figure 8 As shown, take out the camera handle 9, and appropriately expand the elastic tightening ring 7 at the tail end of the second waterproof casing 3, so that the camera handle 9 interface, the camera handle 9, and the cable 10 enter the make way hole 6, the second waterproof casing 3, and finally the third waterproof casing 5 from the elastic tightening ring 7 in sequence.
[0055] Step 4: If Fig. 9 As shown, with the help of the transparent design, the operation can be performed outside the handle cover under direct vision, and the imaging system interface and the camera handle 9 are connected inside the handle cover, and finally the waterproof cover completely covers part of the objective lens rod 8, the connection between the imaging system interface and the camera handle 9, the camera handle 9, and part of the cable 10. The elastic tightening ring 7 can be limited and fixed to the cable 10 to keep the waterproof cover in an overall extended state. Based on the transparent design, various functions of the camera handle 9 can be fully realized outside the waterproof cover.
[0056] Optionally, after step 2 is completed, the third waterproof case 5 and the second waterproof case 3 can also be folded and compressed, or the third waterproof case 5 and the second waterproof case 3 can be folded to the objective lens rod 8 until the objective lens imaging interface is exposed outside the waterproof case, and the imaging system interface and the camera handle 9 are connected outside the waterproof case, and then the waterproof case is stretched, and finally the waterproof case completely covers part of the objective lens rod 8, the connection between the imaging system interface and the camera handle 9, the camera handle 9, and part of the cable 10.
[0057] During the operation, when the single-axis spinal endoscope is working, physiological saline is bound to overflow along the water outlet, internal and external working channels of the spinal endoscope. When the liquid accompanied by blood clots, nucleus pulposus annulus fibrosus debris, bone debris and other tissues rushes out and flows through the objective lens rod 8, due to the first waterproof sleeve 2 and the elastic sealing ring to strengthen the closed waterproof effect, the above-mentioned substances will not enter the connection between the imaging system interface and the camera handle 9 along the mirror rod, but continue to flow along the outer wall of the first waterproof sleeve 2 and each elastic sealing ring 4 through the third waterproof sleeve 5 and the second waterproof sleeve 3 in sequence until they are introduced outside the surgical area, avoiding stagnation of liquid in the surgical area and the instrument operation area, and finally achieving the anti-fouling protection of the lens and the protection of the precision components in the camera handle 9, ensuring the safe and smooth progress of the operation.
[0058] In summary, the waterproof cover for the interface of the water medium spinal endoscope imaging system in the present application is based on the selection of elastic, water-resistant, antibacterial and transparent rubber as the base material, which meets the requirements of use under sterile conditions during surgery, and cleverly uses the elastic retraction property of the base material itself to make the elastic sealing ring 4 hoop attached to the objective lens rod 8 to form a sealed shield, completely close the gap between the lens rod and the inner wall of the waterproof cover, and at the same time realize the limited fixation of the waterproof cover on the objective lens rod 8. Moreover, the material of the base material is single, which is convenient for industrial mass production, has strong practicality, is expected to be low in cost, and is convenient for popularization and use.
[0059] The waterproof cover for the interface of the water medium single-axis spinal endoscopy imaging system in this application, the design of three sets of elastic sealing rings 4 helps to strengthen the sealing and fixing effect, increase the barrier effect, and effectively build a waterproof barrier, while avoiding overly complicated design and facilitating clinical operation and assembly.
[0060] The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system in the present application can completely cover the connection between the imaging system interface and the camera handle 9, the camera handle 9, and part of the cable 10 from the moment the objective lens rod 8 is fixedly sealed by the scope rod cover, thereby isolating the flushing fluid overflowing from the spinal endoscope channel and accompanied by blood clots, nucleus pulposus annulus debris, bone debris and other tissues, so that the liquid can be drained to the outside of the surgical area through the outer wall of the waterproof cover to avoid stagnation of the liquid in the surgical area.
[0061] The waterproof cover used for the interface of the water medium single-axis spinal endoscope imaging system in the present application, the elastic tightening ring 7 at the tail end of the waterproof cover can be fixed on the cable 10 to keep the overall extension state of the waterproof cover, which is conducive to the drainage of liquid through the outer wall of the waterproof cover and by gravity.
[0062] The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system in the present application can be connected with the camera handle 9 inside or outside the waterproof cover according to the user's preference or the habit gradually formed during use. The transparent design facilitates the assembly and disassembly of the objective lens interface and the camera handle 9, and also facilitates the full realization of the various functions of the camera handle 9 outside the waterproof cover.
[0063] The waterproof cover used for the interface of the water medium single-axis spinal endoscopy imaging system in this application is selected with a thinner base material thickness. On the one hand, it can increase the operator's feel of holding the camera handle 9, making it easier to operate the various functions of the handle. On the other hand, it has a light weight and will not increase the operator's fatigue during long-term holding.
[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.
Claims
1. A waterproof cover for an interface of a water medium single-axis spinal endoscope imaging system, characterized in that: include: The main body (1) comprises a first waterproof casing (2) and a second waterproof casing (3) which are connected to each other. The first waterproof casing (2) is an elastic casing used for being tightly sleeved on an objective rod (8) of a spinal endoscope. The inner diameter of the second waterproof casing (3) is larger than the inner diameter of the first waterproof casing (2) and is used for accommodating an interface between the objective rod (8) of the spinal endoscope and a camera handle (9). The cable (10) of the camera handle (9) extends from one end of the second waterproof casing (3) away from the first waterproof casing (2).
2. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 1, characterized in that: The inner wall of the first waterproof casing (2) is provided with an elastic sealing ring (4) protruding toward the center of the first waterproof casing (2), and the elastic sealing ring (4) is used to seal the gap between the objective lens rod (8) and the first waterproof casing (2).
3. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 2, characterized in that: Along the axial direction of the first waterproof casing (2), the elastic sealing rings (4) are respectively arranged at the head, waist and tail of the first waterproof casing (2).
4. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 1, characterized in that: The main body (1) further comprises a third waterproof casing (5), which is a truncated cone-shaped casing as a whole. The small end of the third waterproof casing (5) is connected to the first waterproof casing (2), and the large end of the third waterproof casing (5) is connected to the second waterproof casing (3).
5. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 1, characterized in that: The end of the second waterproof casing (3) away from the first waterproof casing (2) is provided with a bottom folded edge perpendicular to the side wall of the second waterproof casing (3), and a clearance hole (6) is reserved at the center of the bottom folded edge for the cable (10) of the camera handle (9) to pass through.
6. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 5, characterized in that: An elastic tightening ring (7) is provided at the clearance hole (6) for limiting and fixing the end of the second waterproof casing (3) away from the first waterproof casing (2) on the cable (10) of the camera handle (9).
7. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 1, characterized in that: The body (1) is made of a transparent and sterile material.
8. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 1, characterized in that: The base material used in the main body (1) has a thickness ranging from 0.4 mm to 0.6 mm.
9. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 4, characterized in that: The length of the first waterproof casing (2) is in the range of 12 mm to 16 mm; The length of the second waterproof casing (3) is in the range of 240 mm to 260 mm; The length of the third waterproof casing (5) ranges from 12 mm to 25 mm.
10. The waterproof cover for the interface of the aqueous medium single-axis spinal endoscope imaging system according to claim 6, characterized in that: The outer diameter of the first waterproof casing (2) is in the range of 8 mm to 12 mm; The outer diameter of the second waterproof casing (3) is in the range of 50 mm to 70 mm; The outer diameter of the elastic tightening ring (7) ranges from 24 mm to 36 mm.