Working channel device for endoscopic surgery

Abstract

The endoscopic surgery working channel device comprises a surgical instrument inserting cylinder, a liquid sealing valve plate and a detachable fixing cover. A working channel is formed in the surgical instrument insertion cylinder, and openings are formed in the upper and lower ends; the liquid sealing valve plate is stacked on the upper end face of the upper opening of the surgical instrument insertion cylinder; the detachable fixing cover covers the opening in the upper portion of the surgical instrument inserting cylinder so as to press the liquid sealing valve plate, and a surgical instrument inserting opening is formed in the middle of the detachable fixing cover. After the surgical instrument insertion cylinder is inserted into a surgical operation opening, a used surgical instrument is only located in the limited working channel, the surgical operation opening is not prone to being enlarged, skin tissue is not prone to being scratched, the middle of the liquid sealing valve plate is automatically opened when the liquid sealing valve plate is pressed, and therefore the surgical instrument can penetrate through the liquid sealing valve plate conveniently. The non-opened part of the periphery of the device can block effusion in a surgical operation opening from being sprayed outwards, so that a proper amount of effusion is always reserved in a diseased region, needing to be operated, of the spine of a patient to open skin tissue of the patient, and the surgical operation space can be well expanded.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an endoscopic surgery working channel device. Background Art

[0002] In existing major hospitals, when patients undergo unilateral double-channel spinal endoscopic surgery, refer to the attached patent specification. Figure 1 As shown, it is usually necessary to open a first operating port and a second operating port that are internally connected and can see the patient's spinal lesion site at appropriate positions on the patient's skin surface, place an endoscope in the corresponding first operating port for observation, and repeatedly move surgical instruments in and out of the corresponding second operating port to perform surgery on the patient's spinal lesion site.

[0003] Although the above operation method is widely used, the inventor of the present patent found that it has certain defects and shortcomings during operation.

[0004] Specifically, on the one hand, when the surgical instrument is repeatedly inserted and exited inside the corresponding second operating port, the corresponding second operating port is easily enlarged, so that when the subsequent operation is completed and sutured, a large scar is left at the corresponding second operating port, which affects the beauty of the patient's skin and the patient will be unhappy. In addition, when the surgical instrument is repeatedly inserted and exited inside the corresponding second operating port, the skin tissue around the corresponding second operating port is easily scratched, which increases the local damage to the patient's skin. On the other hand, since the patient's skin has a certain softness, the position of the opened corresponding second operating port is not easy to control and is prone to circumferential shaking, which makes it easy for the doctor to pierce the nerve tissue when using the surgical instrument to enter it, resulting in dangerous operation. In addition, for unskilled doctors in the early stage, the surgical instruments they use are also prone to pierce the patient's skin fascia.

[0005] In this regard, the inventor of this patent combined his clinical work experience, conducted in-depth thinking on the problems encountered in clinical work, read a large amount of scientific research materials and literature, and through retrieval and novelty searches, gradually conceived and designed this application to solve related technical problems. Summary of the invention

[0006] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the purpose of the present invention is to provide an endoscopic surgery working channel device.

[0007] To achieve one of the above purposes, an endoscopic surgical working channel device according to an embodiment of the present invention comprises a surgical instrument insertion tube, a liquid sealing valve sheet whose middle portion can be automatically opened when pressurized to allow the surgical instrument to pass through, and a detachable fixing cover for fixing the liquid sealing valve sheet;

[0008] A working channel suitable for the movable insertion of surgical instruments is formed inside the surgical instrument insertion tube, and both the upper and lower ends are formed as openings; the liquid-sealing valve plate is stacked and arranged on the upper end surface of the upper opening of the surgical instrument insertion tube; the detachable fixed cover is detachably covered outside the upper opening of the surgical instrument insertion tube to compress and fix the liquid-sealing valve plate, and a surgical instrument insertion port that penetrates into the interior is opened in the middle of the detachable fixed cover.

[0009] In addition, the endoscopic surgery working channel device according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to one embodiment of the present invention, a circle of clamping grooves is arranged around the upper open end surface of the surgical instrument insertion tube, and a plurality of clamping inner protrusions are evenly arranged on the inner top surface of the detachable fixed cover and protrude downward around the surgical instrument insertion port and face the clamping grooves;

[0011] When the detachable fixed cover is closed over the upper opening of the surgical instrument insertion tube so that the plurality of clamping inner protrusions extend into the clamping groove, the portion of the liquid sealing valve plate close to its outer peripheral edge is tightly pressed into the clamping groove.

[0012] According to an embodiment of the present invention, a plurality of cutouts are evenly opened from the middle portion of the liquid sealing valve plate toward its outer periphery, so that the middle portion of the liquid sealing valve plate is evenly divided into a plurality of fan-shaped valves.

[0013] According to one embodiment of the present invention, an external thread A is provided on the open outer wall of the upper portion of the surgical instrument insertion tube, and an internal thread engaged with the external thread A is provided on the inner wall of the detachable fixing cover.

[0014] According to one embodiment of the present invention, the outer wall of the surgical instrument insertion tube is provided with a plurality of micro fluid outflow holes below the external thread A and close to the external thread A ring for releasing the accumulated fluid to the outside.

[0015] According to one embodiment of the present invention, the outer wall of the surgical instrument insertion tube is divided into a fixed section and an insertion section from top to bottom below the plurality of micro-effusion outflow holes;

[0016] The upper and lower heights of the fixing section are H1, and the upper and lower heights of the inserting section are H2; H1 = 5.0 cm-7.0 cm; H2 = 1.0 cm.

[0017] According to one embodiment of the present invention, a lower outer wall of the insertion section is beveled to form an escape opening.

[0018] According to one embodiment of the present invention, the fixing section is provided with an external thread B from top to bottom, and an insertion depth positioning ring is screwed onto the external thread B; the upper and lower thicknesses of the insertion depth positioning ring are H3, and H3=1.0 cm.

[0019] According to an embodiment of the present invention, the outer wall of the removable fixed cover is provided with anti-slip lines A; the outer wall of the insertion depth positioning ring is provided with anti-slip lines B.

[0020] According to an embodiment of the present invention, the surgical instrument insertion tube and the detachable fixed cover are both made of titanium alloy or stainless steel; the liquid sealing valve plate is made of soft rubber material.

[0021] The beneficial effects of the present invention are:

[0022] First, the endoscopic surgical working channel device provided by the present application, when implemented, after the surgical instrument insertion tube provided by the present application is inserted into the surgical operation port opened on the patient's body skin surface to a certain depth, the surgical instrument used by the doctor only moves within the limited working channel, so that when the surgical instrument is inserted in and out, it is not easy to enlarge the surgical operation port opened on the patient's body skin surface, so that when the subsequent operation is completed and sutured, the surgical operation port opened on the patient's body skin surface is still very small, so that the scar left is small, so that it is not easy to affect the beauty of the patient's skin. And the surgical instrument used by the doctor only enters and exits the surgical instrument insertion tube, so that it is not easy to scratch the skin tissue around the surgical operation port opened on the patient's body skin surface, so that local damage to the patient's skin can be greatly reduced.

[0023] Secondly, the surgical instruments used by the doctor only go in and out of the surgical instrument insertion tube, so that it is not easy to shake and shift circumferentially, and it is not easy to pierce the nerve tissue or skin fascia, making the application safe and reliable to use.

[0024] Thirdly, the middle part of the sealing valve sheet will automatically open when it is under pressure, that is, after the surgical instrument used by the doctor is inserted into the surgical instrument insertion tube through the middle part, the part of the periphery that cannot be opened can play a certain role in blocking the outward spray of the accumulated fluid generated in the surgical operation port opened on the patient's skin surface, so that there will always be a suitable amount of accumulated fluid remaining in the diseased part of the patient's spine that needs surgery to stretch the patient's skin tissue. In this way, there can be a better open surgical operation space, which is beneficial for the doctor to perform surgery on the diseased part of the patient's spine that needs surgery.

[0025] Fourthly, when a large amount of fluid is accumulated in the surgical operation port opened on the skin surface of the patient's body, the excess fluid can flow out laterally from the multiple micro fluid outflow holes, so that the internal pressure of the surgical operation port opened on the skin surface of the patient's body can be better balanced.

[0026] Fifth, when the present application is actually used, a hook instrument will be used to be inserted into the surgical operation port opened on the skin surface of the patient's body through the present application. The bent portion formed at the end of the hook instrument used can extend through the avoidance port opened at the lower part of the insertion portion, so that the bent portion can block the nerve tissue and / or subcutaneous fascia existing beside the patient's spinal lesion site to further avoid being touched by other surgical instruments, so that the present application is safer and more reliable to use.

[0027] Sixth point, when actually using the present application, a measuring tool can be used to measure the distance from the skin surface of the relevant patient to the spinal bone surface in advance, and then the insertion depth positioning ring can be screwed so that the distance between its lower bottom surface and the end of the insertion section is equal to the distance from the skin surface of the relevant patient to the spinal bone surface, and then the present application can be inserted into the surgical operation port opened on the patient's skin surface to a certain depth. At this time, the lower bottom surface of the insertion depth positioning ring can just fit the patient's skin surface. The advantages of doing so are: on the one hand, the depth of the present application inserted into the surgical operation port opened on the patient's skin surface can be positioned, so that the end of the insertion section is not easy to hit the patient's spinal bone surface and cause greater trauma. On the other hand, when the lower bottom surface of the insertion depth positioning ring just fits the patient's skin surface, the present application can be inserted and placed stably, so that the whole formed by the present application is not easy to shake circumferentially, making it more stable to use.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 It is a display diagram of a patient undergoing unilateral double-channel spinal endoscopic surgery in the prior art;

[0031] Figure 2 1 is a schematic diagram of the overall structure of the endoscopic surgery working channel device of the present invention in Embodiment 1;

[0032] Figure 3 is an exploded view of the endoscopic surgery working channel device of the present invention in embodiment 1;

[0033] Figure 4is a longitudinal cross-sectional view of the detachable fixed cover in the first embodiment;

[0034] Figure 5 In the first embodiment, Figure 2 Enlarged view of E in the middle;

[0035] Figure 6 is a schematic diagram of the overall structure of the endoscopic surgery working channel device of the present invention in Embodiment 2;

[0036] Figure 7 Schematic diagram of the overall structure of the endoscopic surgery working channel device of the present invention in Embodiment 2; Figure numerals:

[0037] Endoscopic surgery working channel device 1000;

[0038] A surgical instrument insertion tube 10;

[0039] Working channel 101;

[0040] A pressing groove 102;

[0041] External thread A103;

[0042] Micro effusion outflow hole 104;

[0043] Fixed section 105;

[0044] External thread B1051;

[0045] Insertion segment 106;

[0046] Avoidance 1061;

[0047] Insertion depth positioning ring 107;

[0048] Anti-slip texture B1071;

[0049] Liquid sealing valve plate 20;

[0050] incision 201;

[0051] Fan-shaped flap 202;

[0052] A removable fixed cover 30;

[0053] Surgical instrument insertion port 301;

[0054] Pressing the inner convex 302;

[0055] Internal thread 303;

[0056] Anti-slip texture A304;

[0057] Inserting a guide needle 40;

[0058] Conical insert 401;

[0059] Limiting outer edge 402;

[0060] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0061] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings of the specification, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present invention, but cannot be understood as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0062] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “circumferential”, “radial”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the drawings of the specification, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection 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.

[0065] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0066] The surgical working channel device 1000 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0067] Embodiment 1

[0068] Reference Figures 2 to 5 As shown;

[0069] The surgical working channel device 1000 provided according to an embodiment of the present invention comprises a surgical instrument insertion tube 10, a liquid sealing valve plate 20 whose middle portion can be automatically opened when under pressure to allow the surgical instrument to pass through, and a detachable fixing cover 30 for fixing the liquid sealing valve plate 20;

[0070] Among them, a working channel 101 suitable for the movable insertion of surgical instruments is formed inside the surgical instrument insertion tube 10, and both the upper and lower ends are formed as openings; the liquid-sealing valve plate 20 is stacked and arranged on the upper open end surface of the surgical instrument insertion tube 10; the detachable fixed cover 30 is detachably covered on the outside of the upper open part of the surgical instrument insertion tube 10 to press and fix the liquid-sealing valve plate 20, and the middle part of the detachable fixed cover 30 is opened with a surgical instrument insertion port 301 that penetrates through the interior thereof and faces the middle part of the liquid-sealing valve plate 20.

[0071] Based on the above, it should be noted that when the present application is implemented, that is, when performing unilateral double-channel endoscopic spinal surgery on a patient, the surgical working channel device 1000 is used as unilateral double-channel endoscopic spinal surgery.

[0072] Specifically, when applying the present application, the above-assembled structure of the present application is slowly inserted into the surgical operation port opened on the surface of the patient's skin to a certain depth directly or with the assistance of a guide needle, and then the surgical instruments to be used, such as surgical retractors and / or surgical forceps, are passed from the outside to the inside through the surgical instrument insertion port 301 and press against the liquid sealing valve plate 20. When the middle part of the liquid sealing valve plate 20 is opened, the surgical instruments used can pass through it and extend into the lower part of the surgical instrument insertion tube 10, and directly reach the diseased part of the patient's spine that needs surgery. Then, the doctor can perform surgery on the diseased part of the patient's spine that needs surgery under the guidance of the present application.

[0073] Obviously, the use of the above-mentioned application will have the following technical effects:

[0074] On the one hand, after the surgical instrument insertion tube 10 provided in the present application is inserted to a certain depth into the surgical operation opening opened on the surface of the patient's skin, the surgical instrument used by the doctor only moves within the limited working channel 101, so that when the surgical instrument is inserted in and out, it is not easy to enlarge the surgical operation opening opened on the surface of the patient's skin. When the subsequent operation is completed and sutured, the surgical operation opening opened on the surface of the patient's skin is still very small, so that the scar left is small, so as not to affect the beauty of the patient's skin.

[0075] On the other hand, the surgical instruments used by the doctor only enter and exit the surgical instrument insertion tube 10, so it is not easy to scratch the skin tissue around the surgical operation port opened on the patient's skin surface, so that local skin damage to the patient can be greatly reduced.

[0076] At the same time, the surgical instruments used by the doctor only enter and exit the surgical instrument insertion tube 10, so that it is not easy to shake and shift circumferentially, and it is not easy to pierce the nerve tissue or skin fascia, making the application safe and reliable to use.

[0077] In addition, the middle part of the sealing valve plate 20 automatically opens when it is under pressure, that is, after the surgical instrument used by the doctor is inserted into the surgical instrument insertion tube 10 through the middle part, the part of the periphery that cannot be opened can play a certain role in blocking the outward spray of the accumulated fluid generated in the surgical operation port opened on the patient's skin surface, so that there will always be an appropriate amount of accumulated fluid remaining in the diseased part of the patient's spine that needs surgery to stretch the patient's skin tissue. In this way, there can be a better open surgical operation space, which is beneficial for the doctor to perform surgery on the diseased part of the patient's spine that needs surgery.

[0078] When the liquid sealing valve plate 20 is under pressure, the middle part thereof automatically opens, and the surgical instruments used by the doctor can also be flexibly clamped by the valve plate, which saves the doctor's effort in holding the instruments.

[0079] That is to say, the liquid sealing valve plate 20 provided in the present application is dual-purpose and can not only block the external spraying of the accumulated fluid produced in the surgical operation port opened on the skin surface of the patient's body to a certain extent, but also can play the role of flexibly clamping and fixing the surgical instruments used by the doctor.

[0080] Furthermore, through the above-mentioned optimized design, the overall structure of the present application is highly practical and has good use effect.

[0081] Preferably, in the present technical solution, in a specific implementation, according to an embodiment of the present invention, the surgical instrument insertion tube 10 and the removable fixed cover 30 are both made of titanium alloy or stainless steel; the liquid sealing valve plate 20 is made of soft rubber material.

[0082] Therefore, it is clear that the surgical instrument insertion tube 10 and the detachable fixed cover 30 described in the present application can be cleaned and disinfected so as to be reused, thereby greatly reducing the cost of purchasing the instrument.

[0083] Moreover, it is obvious that the liquid sealing valve plate 20 described in the present application is a disposable item, which is made of soft rubber material and has low cost of use. Moreover, since the detachable fixing cover 30 is detachably covered on the upper opening of the surgical instrument insertion tube 10 to compress and fix the liquid sealing valve plate 20, when the detachable fixing cover 30 is removed, it is convenient to take out and discard the used liquid sealing valve plate 20, and it is convenient to reassemble the surgical instrument insertion tube 10, the detachable fixing cover 30 and the new liquid sealing valve plate 20 after cleaning and disinfection.

[0084] Therefore, through the above-mentioned optimized design, the overall structure of the present application is low in use cost.

[0085] Furthermore, in a specific implementation, according to an embodiment of the present invention, a circle of clamping grooves 102 are arranged around the upper open end surface of the surgical instrument insertion tube 10, and a plurality of clamping inner protrusions 302 facing the clamping grooves 102 are uniformly arranged downwardly around the surgical instrument insertion opening 301 on the inner top surface of the detachable fixed cover 30;

[0086] When the removable fixed cover 30 covers the upper opening of the surgical instrument insertion tube 10 so that the plurality of clamping inner protrusions 302 extend into the clamping groove 102 , the portion of the liquid sealing valve plate 20 close to its outer periphery is tightly pressed into the clamping groove 102 .

[0087] Therefore, it can be clearly seen that by providing the clamping groove 102 and the multiple clamping inner protrusions 302, when the removable fixed cover 30 is covered on the upper opening of the surgical instrument insertion tube 10 so that the multiple clamping inner protrusions 302 extend into the clamping groove 102, the portion of the liquid sealing valve plate 20 close to its outer peripheral edge will be tightly pressed into the clamping groove 102. In this way, the peripheral edge of the liquid sealing valve plate 20 is firmly fixed and not easy to slip, making the present application more stable and reliable to use.

[0088] Preferably, in the technical solution, according to an embodiment of the present invention, a plurality of cutouts 201 are evenly opened from the middle of the liquid sealing valve plate 20 toward its outer periphery, so that the middle of the liquid sealing valve plate 20 is evenly divided into a plurality of fan-shaped valves 202 .

[0089] Therefore, when the surgical instrument used passes through the surgical instrument insertion port 301 and presses the liquid sealing valve plate 20, the plurality of fan-shaped flaps 202 will open so that the middle part of the liquid sealing valve plate 20 is opened to facilitate the passage of the surgical instrument used. Conversely, at the moment the surgical instrument used is pulled out of the present application, the plurality of fan-shaped flaps 202 will be reset so that the working channel 101 can be closed, and then can continue to play a certain role in blocking the external spraying of the accumulated fluid generated in the surgical operation port opened on the skin surface of the patient's body, making the present application more reliable to use.

[0090] Furthermore, the fan-shaped valves 202 are opened passively when opened, so that they can assist in circumferentially clamping the surgical instruments to a certain extent, making the surgical instruments less likely to shake during use, thereby saving the doctor's effort in operation.

[0091] In a specific implementation, according to one embodiment of the present invention, the upper open outer wall of the surgical instrument insertion tube 10 is provided with an external thread A103, and the inner wall of the detachable fixed cover 30 is provided with an internal thread 303 meshing with the external thread A103.

[0092] Therefore, the detachable fixed cover 30 is threadedly connected to the upper opening of the surgical instrument insertion tube 10, so that during use, the connection between it and the surgical instrument insertion tube 10 is stable, and the liquid sealing valve plate 20 can be pressed and fixed well, and it is also easy to disassemble from the surgical instrument insertion tube 10, making the present application quick and convenient to disassemble and assemble.

[0093] In addition, in the present technical solution, according to an embodiment of the present invention, the outer wall of the surgical instrument insertion tube 10 is provided with a plurality of micro fluid outflow holes 104 for releasing the accumulated fluid to the outside below the external thread A103 and close to the external thread A103.

[0094] Therefore, it is clear that when a large amount of fluid is accumulated in the surgical operation port opened on the skin surface of the patient's body, the excess fluid can flow out laterally from the multiple micro fluid outflow holes 104, so as to better balance the internal pressure of the surgical operation port opened on the skin surface of the patient's body.

[0095] Furthermore, in a specific implementation, according to an embodiment of the present invention, the outer wall of the surgical instrument insertion tube 10 is divided into a fixed section 105 and an insertion section 106 from top to bottom below the plurality of micro-effusion outflow holes 104;

[0096] The upper and lower heights of the fixing section 105 are H1, and the upper and lower heights of the inserting section 106 are H2; H1 = 5.0 cm-7.0 cm; and H2 = 1.0 cm.

[0097] It should be noted here that, generally speaking, the distance from the patient's skin surface to the spinal bone surface is basically 5.0cm-6.0cm. Therefore, in the present application, the upper and lower heights H1 of the fixed section 105 are set to 5.0cm-7.0cm, and the upper and lower heights H2 of the insertion section 106 are set to 1.0cm, so that the length of the surgical instrument insertion tube 10 described in the present application is sufficient and can basically adapt to the use of all patients.

[0098] Furthermore, the fixing section 105 is configured to be fixed in the patient's skin, so that the entire application is stable to use.

[0099] Preferably, in the technical solution, according to an embodiment of the present invention, a lower outer wall of the insertion section 106 is beveled to form an escape opening 1061 .

[0100] It should be noted here that when the present application is actually used, a hook instrument will also be used to be inserted into the surgical operation port opened on the skin surface of the patient's body through the present application. The bent portion formed at the end of the hook instrument used can extend through the avoidance port 1061, so that the bent portion can block the nerve tissue and / or subcutaneous fascia existing on the side of the patient's spinal lesion site, so as to further avoid being touched by other surgical instruments, so that the present application is safer and more reliable to use.

[0101] Furthermore, in a specific implementation, according to an embodiment of the present invention, the fixing section 105 is provided with an external thread B1051 from top to bottom, and an insertion depth positioning ring 107 is screwed onto the external thread B1051; the upper and lower thicknesses of the insertion depth positioning ring 107 are H3, and H3=1.0 cm.

[0102] In this regard, it can be understood that the distance from the skin surface to the spinal bone surface of different patients will be different. Therefore, when actually using the present application, a measuring tool can be used to measure the distance from the skin surface to the spinal bone surface of the relevant patient in advance, and then the insertion depth positioning ring 107 can be screwed so that the distance between its lower bottom surface and the end of the insertion section 106 is equal to the distance from the skin surface to the spinal bone surface of the relevant patient. Then, the present application is inserted into the surgical operation port opened on the patient's skin surface to a certain depth. At this time, the lower bottom surface of the insertion depth positioning ring 107 can just fit the patient's skin surface.

[0103] The advantages of doing so are: on the one hand, the depth of the surgical operation port opened on the patient's skin surface can be positioned, so that the end of the insertion section 106 is not likely to hit the patient's spinal bone surface and cause greater trauma; on the other hand, when the bottom surface of the insertion depth positioning ring 107 just fits the patient's skin surface, the application can be stably inserted and placed, so that the whole formed by the application is not likely to shake circumferentially, making it more stable in use.

[0104] Furthermore, the function of the external thread B1051 is: on the one hand, it is used to threadably connect the insertion depth positioning ring 107 so as to adjust the height position of the insertion depth positioning ring 107; on the other hand, its setting makes the outer wall friction of the fixing segment 105 large, which can increase the fixation of the fixing segment 105 inside the surgical operation port on the patient's skin surface, so that the fixing segment 105 can be effectively prevented from falling off outward.

[0105] In this way, the external thread B1051 provided in the present application is also dual-purpose and has comprehensive functions.

[0106] It should be added that, in a specific implementation, according to an embodiment of the present invention, the outer wall of the removable fixed cover 30 is provided with anti-slip lines A304; the outer wall of the insertion depth positioning ring 107 is provided with anti-slip lines B1071.

[0107] In this way, the detachable fixing cover 30 can be prevented from falling off when being screwed by medical personnel, and the insertion depth positioning ring 107 can also be prevented from falling off when being screwed by medical personnel.

[0108] It is further necessary to add that, in a specific implementation, according to one embodiment of the present invention, the inner diameter of the surgical instrument insertion tube 10 is set to D, wherein D=10.5mm-11.5mm, so that its inner diameter will not be small, so as to adapt to the movable insertion of various instruments for spinal surgery, and so that its inner diameter will not be large, so that a surgical operation port with a diameter of 10.5mm-11.5mm can be opened on the patient's skin surface, and the relevant surgical operation port is not large, so that after the operation is completed and sutured, a small scar is left.

[0109] Embodiment 2

[0110] Reference Figure 6 to Figure 7 , and combined with Figures 2 to 5 As shown;

[0111] On the basis of Example 1, in the specific implementation, according to one embodiment of the present invention, the inner diameter of the surgical instrument insertion tube 10 is the same as the inner diameter of the surgical instrument insertion port 301 of the removable fixed cover 30. Based on this, the present application also includes an insertion guide needle 40 whose inner diameter is slightly smaller than the inner diameter of the surgical instrument insertion tube 10, and the lower end of the insertion guide needle 40 is provided with a conical insertion portion 401 downward, and the length of the insertion guide needle 40 is greater than the upper and lower lengths of the whole formed by the surgical instrument insertion tube 10 and the removable fixed cover 30 connected together. The upper outer wall of the insertion guide needle 40 is provided with a circle of limiting outer edge 402, and the distance between the lower bottom surface of the limiting outer edge 402 and the lower end of the insertion guide needle 40 is equal to or greater than the upper and lower lengths of the whole formed by the surgical instrument insertion tube 10 and the removable fixed cover 30.

[0112] In this way, when using the present application in this embodiment, the sealing valve plate 20 is first removed, and then the insertion guide needle 40 is inserted from top to bottom into the whole formed by the surgical instrument insertion tube 10 and the detachable fixed cover 30, so that the lower bottom surface of the limiting outer edge 402 is in contact with the upper end surface of the detachable fixed cover 30. At this time, the conical insertion portion 401 is exposed outside the lower end of the surgical instrument insertion tube 10. Under the guiding effect of the conical insertion portion 401, the surgical instrument insertion tube 10 and the detachable fixed cover 30 are formed. The whole can be quickly inserted into the surgical operation port opened on the patient's skin surface, and then, the insertion guide needle 40 is removed upwards, and the detachable fixing cover 30 is unscrewed, and the liquid sealing valve sheet 20 is stacked and fixed to the upper open end surface of the surgical instrument insertion tube 10, and then the surgical instrument insertion tube 10 and the detachable fixing cover 30 are reconnected to press and fix the liquid sealing valve sheet 20. In this way, the whole composed of the surgical instrument insertion tube 10, the detachable fixing cover 30 and the liquid sealing valve sheet 20 described in the present application can be simply used to perform auxiliary insertion of surgical instruments.

[0113] Other embodiments and the like are not described here by way of example.

[0114] In summary, the surgical working channel device 1000 provided by the present application, when implemented, after the surgical instrument insertion tube 10 provided by the present application is inserted into the surgical operation port opened on the surface of the patient's body skin to a certain depth, the surgical instrument used by the doctor only moves within the limited working channel 101, so that when the surgical instrument is inserted in and out, it is not easy to enlarge the surgical operation port opened on the surface of the patient's body skin, so that when the surgical instrument is inserted in and out, the surgical operation port opened on the surface of the patient's body skin is still very small, so that the scar left is small, so that it is not easy to affect the beauty of the patient's skin. And the surgical instrument used by the doctor only enters and exits the surgical instrument insertion tube 10, so that it is not easy to scratch the skin tissue around the surgical operation port opened on the surface of the patient's body skin, so that local damage to the patient's skin can be greatly reduced.

[0115] At the same time, the surgical instruments used by the doctor only enter and exit the surgical instrument insertion tube 10, so that it is not easy to shake and shift circumferentially, and it is not easy to pierce the nerve tissue or skin fascia, making the application safe and reliable to use.

[0116] In addition, the middle part of the sealing valve plate 20 automatically opens when it is under pressure, that is, after the surgical instrument used by the doctor is inserted into the surgical instrument insertion tube 10 through the middle part, the part of the periphery that cannot be opened can play a certain role in blocking the outward spray of the accumulated fluid generated in the surgical operation port opened on the patient's skin surface, so that there will always be an appropriate amount of accumulated fluid remaining in the diseased part of the patient's spine that needs surgery to stretch the patient's skin tissue. In this way, there can be a better open surgical operation space, which is beneficial for the doctor to perform surgery on the diseased part of the patient's spine that needs surgery.

[0117] Furthermore, when a large amount of fluid is accumulated in the surgical operation port opened on the patient's skin surface, the excess fluid can flow out laterally from the plurality of micro fluid outflow holes 104, thereby better balancing the internal pressure of the surgical operation port opened on the patient's skin surface.

[0118] Moreover, when the present application is actually used, a hook instrument will be inserted into the surgical operation port opened on the skin surface of the patient's body through the present application. The bent portion formed at the end of the hook instrument used can extend through the avoidance port 1061 opened at the lower part of the insertion portion, so that the bent portion can block the nerve tissue and / or subcutaneous fascia existing beside the diseased part of the patient's spine, so as to further avoid being touched by other surgical instruments, so that the present application is safer and more reliable to use.

[0119] In addition, when the present application is actually used, a measuring tool can be used to measure the distance from the skin surface of the relevant patient to the spinal bone surface in advance, and then the insertion depth positioning ring 107 can be screwed so that the distance between the lower bottom surface and the end of the insertion section 106 is equal to the distance from the skin surface of the relevant patient to the spinal bone surface, and then the present application is inserted into the surgical operation opening opened on the patient's skin surface to a certain depth, at which time, the lower bottom surface of the insertion depth positioning ring 107 can just fit the patient's skin surface. The advantages of doing so are: on the one hand, the depth of the present application inserted into the surgical operation opening opened on the patient's skin surface can be positioned, so that the end of the insertion section 106 is not easy to hit the patient's spinal bone surface and cause greater trauma, and on the other hand, when the lower bottom surface of the insertion depth positioning ring 107 just fits the patient's skin surface, the present application can be inserted and placed stably, so that the whole formed by the present application is not easy to shake circumferentially, making it more stable to use.

[0120] Furthermore, the surgical working channel device 1000 provided by the present application is indeed extremely practical and has excellent use effects, which makes the present application bound to have a good market promotion value, and the present application is bound to be very popular and will be effectively popularized.

[0121] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0122] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An endoscopic surgical working channel device, characterized in that: It comprises a surgical instrument insertion tube, a liquid sealing valve sheet whose middle part can be automatically opened when under pressure to allow the surgical instrument to pass through, and a detachable fixing cover for fixing the liquid sealing valve sheet; A working channel suitable for the movable insertion of surgical instruments is formed inside the surgical instrument insertion tube, and both the upper and lower ends are formed as openings; the liquid-sealing valve plate is stacked and arranged on the upper end surface of the upper opening of the surgical instrument insertion tube; the detachable fixed cover is detachably covered outside the upper opening of the surgical instrument insertion tube to compress and fix the liquid-sealing valve plate, and a surgical instrument insertion port that penetrates into the interior is opened in the middle of the detachable fixed cover.

2. The endoscopic surgery working channel device according to claim 1, characterized in that: The upper end surface of the surgical instrument insertion tube is provided with a circle of clamping grooves, and the inner top surface of the detachable fixed cover is provided with a plurality of clamping inner protrusions evenly protruding downward around the surgical instrument insertion port and facing the clamping grooves; When the detachable fixed cover is closed over the upper opening of the surgical instrument insertion tube so that the plurality of clamping inner protrusions extend into the clamping groove, the portion of the liquid sealing valve plate close to its outer peripheral edge is tightly pressed into the clamping groove.

3. The endoscopic surgery working channel device according to claim 1, characterized in that: A plurality of cutouts are evenly opened from the middle of the liquid sealing valve plate toward its outer periphery, so that the middle of the liquid sealing valve plate is evenly divided into a plurality of fan-shaped flaps.

4. The endoscopic surgery working channel device according to claim 1, characterized in that: The outer wall of the upper opening of the surgical instrument insertion tube is provided with an external thread A, and the inner wall of the detachable fixed cover is provided with an internal thread engaged with the external thread A.

5. The endoscopic surgery working channel device according to claim 1, characterized in that: The outer wall of the surgical instrument insertion tube is provided with a plurality of micro fluid outflow holes below the external thread A and close to the external thread A ring for releasing the accumulated fluid outward.

6. The endoscopic surgery working channel device according to claim 5, characterized in that: The outer wall of the surgical instrument insertion tube is divided into a fixed section and an insertion section from top to bottom below the plurality of micro-effusion outflow holes; The upper and lower heights of the fixing section are H1, and the upper and lower heights of the inserting section are H2; H1 = 5.0 cm-7.0 cm; H2 = 1.0 cm.

7. The endoscopic surgery working channel device according to claim 6, characterized in that: The lower outer wall of the insertion section is beveled to form a relief opening.

8. The endoscopic surgery working channel device according to claim 6, characterized in that: The fixing section is provided with an external thread B from top to bottom, and an insertion depth positioning ring is screwed onto the external thread B; the upper and lower thicknesses of the insertion depth positioning ring are H3, and H3=1.0 cm.

9. The endoscopic surgery working channel device according to claim 8, characterized in that: The outer wall of the removable fixed cover is provided with anti-slip lines A; the outer wall of the insertion depth positioning ring is provided with anti-slip lines B.

10. The endoscopic surgery working channel device according to any one of claims 1 to 9, characterized in that: The surgical instrument insertion tube and the detachable fixed cover are both made of titanium alloy or stainless steel; the liquid sealing valve plate is made of soft rubber material.

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