Tissue releasing device capable of being seen directly

Abstract

The embodiment of the invention provides a direct-visible tissue release device, which comprises a puncture assembly, the puncture assembly comprises a puncture needle tube and a developing part located on the periphery of the far end of the puncture needle tube, the puncture needle tube internally comprises a cavity, the cavity is open to tissue, the far end of the puncture needle tube is provided with a needle tip, and the developing part is arranged at the rear end of the needle tip; the operating handle comprises a composite steering control device and a needle tube moving device; the imaging illumination system comprises an image illumination switching device and an imaging illumination optical fiber, the far end of the imaging illumination system can be bent and steered, and the imaging illumination system extends to the far end of the puncture needle tube through the cavity of the puncture needle tube; the needle tube moving device is used for adjusting the relative position of the far end of the puncture needle tube and the far end of the imaging illumination system, and the composite steering control device is used for controlling steering of the imaging illumination system.

Description

Technical Field

[0001] The present specification relates to the medical field, and in particular to a device for directly visually releasing tissue. Background Art

[0002] At present, interventional release and reconstruction repair is performed clinically. Under the guidance of CT, needles are placed inside the spinal canal, outside the dura mater, inside the nerve root and between the protruding disc. Breaking through the spinal canal barrier, the drug is injected into the surface of the torn disc and around the inflammatory damaged sciatic nerve to reduce inflammation, activate blood circulation and promote the self-healing of the fiber ring. At the same time, it nourishes the nerves, repairs the nerves and releases adhesions. During the operation, the drug diffusion position can only be judged by indirect imaging, which is inaccurate and cannot achieve physical adhesion release.

[0003] Therefore, it is hoped to provide a visual tissue release device that can simultaneously achieve visual puncture and physical adhesion release under visual conditions based on a highly integrated design. Summary of the invention

[0004] One of the embodiments of the present specification provides a directly visible tissue release device, comprising: a puncture assembly, the puncture assembly includes a puncture needle tube and a developing part located at the outer periphery of the distal end of the puncture needle tube, the interior of the puncture needle tube includes a cavity, the cavity is open to the tissue, the distal end of the puncture needle tube is provided with a needle tip, and the developing part is provided at the rear end of the needle tip; an operating handle, the operating handle includes a composite steering control device and a needle tube moving device; an imaging lighting system, the imaging lighting system includes an image lighting adapter device and an imaging lighting optical fiber, the distal end of the imaging lighting system can be bent and turned, and the imaging lighting system extends to the distal end of the puncture needle tube through the cavity of the puncture needle tube; the needle tube moving device is used to adjust the relative position of the distal end of the puncture needle tube and the distal end of the imaging lighting system, and the composite steering control device is used to control the steering of the imaging lighting system.

[0005] One of the embodiments of the present specification provides a method for using a directly visible tissue release device, including: a puncture assembly, the puncture assembly includes a puncture needle tube and a developing part located at the outer periphery of the distal end of the puncture needle tube, the interior of the puncture needle tube includes a cavity, the cavity is open to the tissue, and the distal end of the puncture needle tube is provided with a needle tip; an operating handle, the operating handle includes a composite steering control device and a needle tube moving device; an imaging lighting system, the imaging lighting system includes an image lighting adapter device and an imaging lighting optical fiber, the distal end of the imaging lighting system can be bent and turned, and the imaging lighting system extends to the distal end of the puncture needle tube through the cavity of the puncture needle tube; the needle tube moving device is used to The relative position of the distal end of the puncture needle tube and the distal end of the imaging illumination system is adjusted, and the composite steering control device is used to control the steering of the imaging illumination system; the method of use includes: visual puncture, the imaging illumination system is introduced into the cavity of the puncture needle tube through the operating handle, so that the extended length of the puncture needle tube is greater than the extended length of the imaging illumination system, and the puncture needle tube is used for puncture; visual operation, after the puncture is completed, the relative position of the distal end of the puncture needle tube and the distal end of the imaging illumination system is adjusted by the needle tube moving device, so that the imaging illumination optical fiber extends from the distal end of the cavity of the puncture needle tube, and the bending and steering of the imaging illumination system is controlled by the composite steering control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] This specification will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:

[0007] Figure 1 is a first exemplary schematic diagram of a directly visible tissue release device according to some embodiments of the present specification;

[0008] Figure 2 is a first exemplary structural diagram of a direct-view tissue release device according to some embodiments of this specification;

[0009] Figure 3 is a schematic diagram of the working state of the puncture needle tube according to some embodiments of this specification;

[0010] Figure 4 is an exemplary schematic diagram of a puncture needle tube according to some embodiments of this specification;

[0011] Figure 5 is a schematic structural diagram of a steering portion of an imaging lighting system in a bent state according to some embodiments of this specification;

[0012] Figure 6 is a partial enlarged view of a steering portion of an imaging illumination system according to some embodiments of the present specification;

[0013] Figure 7is a partial enlarged view of a composite steering control device according to some embodiments of the present specification;

[0014] Figure 8 is an enlarged schematic diagram of the distal end surface of the lumen according to some embodiments of the present specification;

[0015] Fig. 9 is a second exemplary structural diagram of a directly visible tissue release device according to some embodiments of this specification;

[0016] Fig.10 is a third exemplary structural diagram of a directly visible tissue release device according to some embodiments of this specification;

[0017] Fig.11 is an exemplary structural diagram of a release forceps according to some embodiments of the present specification;

[0018] Fig.12 It is a partial enlarged view of the distal end of the release forceps shown in some embodiments of the present specification. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present invention clearer, the following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present invention, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed for protection in the claims of the present application can be implemented.

[0020] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, ie, should be interpreted as "including, but not limited to."

[0021] The following will be described in detail with reference to the accompanying drawings to provide a clearer understanding of the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0022] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0023] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0024] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0025] Embodiments of the present invention are described below with reference to the accompanying drawings.

[0026] Figure 1 1 is a first exemplary schematic diagram of a direct-view tissue release device according to some embodiments of the present specification. Figure 2 1 is a first exemplary structural diagram of a directly visible tissue release device according to some embodiments of the present specification. Figure 3 It is a schematic diagram of the working state of the puncture needle tube shown in some embodiments of this specification. Figure 4 is an exemplary schematic diagram of a puncture needle tube according to some embodiments of the present specification.

[0027] like Figure 1 and Figure 2 The first exemplary schematic diagram and structural diagram of the directly visible tissue decompression device shown in the figure shows that the directly visible tissue decompression device 100 includes a puncture assembly 1010 , an operating handle 2010 , and an imaging illumination system 3010 .

[0028] The puncture assembly 1010 may include a puncture needle tube 1011 and a developing unit 1012. In some embodiments, the puncture assembly 1010 includes a puncture needle tube 1011 and a developing unit 1012 located at the outer periphery of the distal end of the puncture needle tube 1011. A needle tip is provided at the distal end of the puncture needle tube 1011. The proximal end of the puncture needle tube 1011 is connected to the operating handle 2010. Unless otherwise specified in this specification, the distal end may be the end away from the operator's body, and the proximal end may be the end close to the operator's body. The directions of the distal end and proximal end of the operating handle 2010 and the imaging lighting system 3010 are the same as the directions of the distal end and proximal end of the puncture needle tube.

[0029] The puncture needle tube can be used for puncture. The inner space surrounded by the puncture needle tube 1011 can be a cavity, and the cavity is open to the tissue. In some embodiments, the cavity in the puncture needle tube 1011 allows the imaging lighting system and / or other instruments to pass through to achieve functions such as lighting, tissue image acquisition, drug injection, stripping, and suction.

[0030] In some embodiments, the cross-section of the puncture needle tube 1011 may be circular, oval, etc. In some embodiments, the diameter of the puncture needle tube 1011 may be 0.7 mm-2 mm. In some embodiments, the diameter of the puncture needle tube 1011 may be 0.7 mm-1.5 mm. In some embodiments, the diameter of the puncture needle tube 1011 may be 0.7 mm-1.2 mm. In some embodiments, the diameter of the puncture needle tube 1011 may be 0.7 mm-1.0 mm. In some embodiments, the diameter of the puncture needle tube 1011 may be 0.7 mm-0.9 mm. In some embodiments, the puncture needle tube 1011 may be a rigid material, for example, the rigid material may be stainless steel, etc. The rigid material can better maintain the straight shape of the needle tube, reduce the possibility of bending and deviation, and thus improve the accuracy and efficiency of puncture.

[0031] In some embodiments, during the puncture process, the extended length of the puncture needle tube 1011 (the length of the puncture needle tube extending from the operating handle) may be no greater than 120 mm. In some embodiments, during the puncture process, the extended length of the puncture needle tube 1011 may be no greater than 100 mm. In some embodiments, during the puncture process, the extended length of the puncture needle tube 1011 may be no greater than 80 mm.

[0032] In some embodiments, the outside of the puncture needle tube 1011 may be provided with a scale to mark the depth of the puncture needle tube entering the tissue or the extension length of the puncture needle tube. The scale on the puncture needle tube 1011 may be marked from the needle tip.

[0033] In some embodiments, the cavity of the puncture needle tube can be unspaced. The distal end of the imaging lighting system can extend into the puncture needle tube and can extend from the distal end of the puncture needle tube. In some embodiments, the relative position of the needle tip of the puncture needle tube 1011 and the distal end of the imaging lighting fiber can be adjusted by changing the extension length of the puncture needle tube 2010 and / or the extension length of the imaging lighting system 3010 (the length of the distal end of the imaging lighting fiber extending from the operating handle). In some embodiments, the extension length of the puncture needle tube 1011 can be adjusted by the needle tube moving device of the operating handle. For details, please refer to the description of the operating handle in this application.

[0034] like Figure 3 The left middle figure shows a partial enlarged view of the distal end of the puncture process. During the puncture process, the extended length of the puncture needle tube 1011 exceeds the extended length of the imaging illumination system 3010, that is, the distal end of the imaging illumination system is completely located in the cavity inside the puncture needle tube. Figure 3The middle right figure shows an enlarged view of the distal part after the puncture is completed. When other operations are required after the puncture is completed, the relative position of the puncture needle tube 1011 and the distal end of the imaging lighting system 3010 is adjusted so that the extended length of the puncture needle tube 1011 is smaller than the extended length of the imaging lighting system 3010, which can avoid scratching of normal tissue by the needle tip during other operations.

[0035] In some embodiments, the developing portion can be used to mark the needle tip position of the puncture needle tube. Figure 2 As shown, the developing unit 1012 is used to highlight the needle tip position of the puncture needle tube in the image displayed on the display. The developing unit 1012 can be located on the outer periphery of the distal end of the puncture needle tube 1011. In some embodiments, the developing unit 1012 can be arranged in a ring around the outer periphery of the puncture needle tube. In some embodiments, the developing unit 1012 is set at the rear end of the needle tip. In some embodiments, the developing unit 1012 can be a coating and / or an etched structure. In some embodiments, the developing unit can include at least one developing segment. Figure 4 As shown, a plurality of developing sections are provided in sections on the puncture needle tube 1010. The developing section can be provided in sections along the axial direction of the puncture needle tube to mark the extension length of the puncture needle tube, and each developing section in the developing section corresponds to a range of the extension length of the puncture needle tube, and blanks can be used between the developing sections.

[0036] In some embodiments, the operating handle 2010 may include a housing, a composite steering control device 2011, a needle tube moving device 2012, and / or a connecting structure 2013. In some embodiments, the operating handle 2010 may also include an injection port 2019. The axial direction of the operating handle 2010 may be parallel to the axial direction of the puncture needle tube 1011. The axial direction may refer to the direction in which the puncture needle tube length or the length of the operating handle 2010 extends. The operating handle 2010 includes a distal port and a proximal port, wherein the distal port is connected to the puncture needle tube 1011 of the puncture assembly 1010, and the proximal port is connected to the image lighting adapter of the imaging lighting system 3010. The interior of the housing of the operating handle 2010 may include an inner cavity connected to the cavity of the puncture needle tube 1011. As Figure 2 As shown, the inner cavity of the operating handle 2010 may be provided with a composite steering control device 2011 and a needle tube moving device 2012.

[0037] The composite steering control device is used to control the steering of the far end of the imaging illumination system (imaging illumination optical fiber). Figure 2As shown, the composite steering control device 2011 may include a slender portion, a round shaft portion and a traction wire. The slender portion may be integrally formed with the round shaft portion, or may be detachably connected. The slender portion and the round shaft portion may be made of rigid materials. A rectangular groove corresponding to the slender portion is provided on the outer shell of the operating handle 2010. The round shaft portion of the composite steering control device 2011 is completely located in the inner cavity of the operating handle 2010, and the slender portion may extend through the groove notch and may move in the groove. The round shaft portion is connected to the imaging illumination system through the traction wire. By toggling the slender portion, the slender portion moves between position 1 and position 2, driving the round shaft portion to rotate, and pulling the traction wire, so that the imaging illumination optical fiber in the imaging illumination system is bent and turned. Among them, position 1 is the side where the groove notch is biased toward the puncture assembly, and position 2 is the side where the groove notch is biased toward the image illumination adapter. For specific details about the bending of the imaging illumination system, please refer to the description of other contents of this specification, for example, the relevant description of the imaging illumination system 3010.

[0038] The needle tube moving device 2012 can be an adjustment device located in the inner cavity of the operating handle 2010, which is used to adjust the extension length of the puncture needle tube 1011.

[0039] In some embodiments, the needle tube moving device 2012 can change the extension length of the puncture needle tube, and is used to adjust the relative position between the distal end of the puncture needle tube 1011 and the distal end of the imaging illumination system. In some embodiments, the length of the puncture needle tube 1011 extending from the operating handle 2010 can be changed by adjusting the needle tube moving device 2012. In some embodiments, the needle tube moving device 2012 can be a knob, corresponding to the thread on the outer periphery of the puncture needle tube 1011. By rotating the knob, the puncture needle tube 1011 can move forward and backward along its axial direction, thereby changing the extension length of the puncture needle tube 1011. The needle tube moving device can be marked with a scale for marking the extension length of the puncture needle tube. By comparing the scale on the developing portion on the puncture needle tube and the needle tube moving device, the accuracy of determining the extension length of the puncture needle tube is improved.

[0040] In some embodiments, the needle tube moving device can be set with at least one gear. At least one gear corresponds to the extension length of at least one puncture needle tube. Different operations, such as puncture, treatment, etc., can be achieved by controlling the extension length of the puncture needle tube. The gear can be a push button, a buckle, a gear, etc. By setting at least one gear, basic operations can be achieved under poor vision. The needle tube moving device may also include a locking mechanism, which is used to lock the extension length of the puncture needle tube after the gear adjustment is completed to prevent the extension length of the puncture needle tube from changing during use and puncturing the tissue. In some embodiments, the needle tube moving device may also include a fine-tuning structure. The fine-tuning structure can fine-tune the extension length of the puncture needle tube after the gear is selected according to different objects, and combine the developing part and the outer scale of the puncture needle tube to achieve more accurate puncture depth adjustment to meet the needs of different patients and operations.

[0041] The distal end of the operating handle 2010 is a connecting structure. The connecting structure is used to connect the operating handle and the puncture assembly. The connecting structure and other structures of the operating handle, such as the housing, are detachably connected or integrally connected. The connecting structure can be divided into a distal portion and a proximal portion. In some embodiments, the distal portion of the connecting structure can be connected to the proximal end of the puncture needle tube. In some embodiments, the opening of the distal portion of the connecting structure is connected to the puncture needle tube, and the opening of the proximal portion is connected to the image illumination adapter of the imaging illumination system.

[0042] like Figure 2 As shown, the operating handle 2010 may be provided with a liquid injection port 2019 which is at a certain angle to the axial direction thereof. The liquid injection port 2019 may be an injection port for a drug solution and / or a cleaning solution. The liquid injection port may be on the connecting structure 2013 or the housing. In some embodiments, the liquid injection port is connected to the liquid injection cavity in the puncture needle tube. In some embodiments, the space between the tube wall of the puncture needle tube and the imaging illumination optical fiber may serve as the liquid injection cavity. In some embodiments, as Figure 2 As shown, the liquid inlet direction of the injection port 2019 can be perpendicular to the axial direction of the operating handle 2010. In some embodiments, the liquid inlet direction of the injection port 2019 can be at a certain angle to the axial direction of the operating handle 2010. In some embodiments, the liquid inlet direction of the injection port 2019 is at an acute angle to the axial direction of the operating handle 2010. In some embodiments, the liquid inlet direction of the injection port 2019 is at 60° to the axial direction of the operating handle 2010. The liquid medicine and / or cleaning solution can be injected from the injection port 2019, pass through the connecting tube between the injection port 2019 and the puncture needle tube 1011, enter the injection cavity in the puncture needle tube 1012, and finally enter the tissue.

[0043] The imaging lighting system 3010 may include an image lighting adapter 3011 and an imaging lighting optical fiber 3012. The distal end of the image lighting adapter 3011 may be connected to the proximal end of the operating handle 2010. In some embodiments, the image lighting adapter 3011 may include an image interface 3012 and a lighting interface 3013. The image interface 3012 may be connected to an external image processing device to transmit an image signal to the image processing device. The lighting interface 3013 may be connected to an external light source.

[0044] In some embodiments, the imaging illumination fiber may include an imaging fiber and an illumination fiber. The distal end of the imaging illumination system 3010 may be an imaging illumination fiber. The imaging fiber and the illumination fiber enter from the image interface 3012 and the illumination interface 3013 of the image illumination adapter 3011, respectively, and extend to the distal end of the puncture needle tube through the cavity of the puncture needle tube to obtain the image signal of the tissue. The image signal of the tissue is transmitted to the image processing device through the imaging fiber, and the processed image signal can be displayed on an external display device. The light signal generated by the external light source can be transmitted to the illumination fiber to provide illumination for imaging. The distal end of the imaging illumination system can be covered with a transparent protective cover. The distal end of the imaging illumination system can be provided with a wide-angle lens. In the present application, the imaging illumination fiber can refer to a component used for imaging and illumination, which can include an optical lens, an electronic lens (e.g., CMOS, CCD).

[0045] In some embodiments, the distal end of the imaging illumination system may be provided with a turning portion capable of bending and turning. Figure 5 It is a structural schematic diagram of an imaging lighting system in which a steering portion is in a bent state according to some embodiments of the present specification. Figure 6 It is a partially enlarged view of the steering portion of the imaging lighting system shown in some embodiments of this specification. Figure 7 It is a partially enlarged view of a compound steering control device shown in some embodiments of the present specification.

[0046] In some embodiments, a lumen may be arranged axially in the cavity of the puncture needle tube. In some embodiments, a turning portion is arranged at the distal end of the lumen. In some embodiments, the lumen length may be the same as the extended length of the imaging illumination system. In some embodiments, the distal end of the lumen may include a turning portion 1050, and the turning portion 1050 may be curved. In some embodiments, the interior of the lumen may be divided into a first channel 1054 and a second channel 1055. In some embodiments, the first channel 1054 and the second channel 1055 may be arranged in parallel or in a concentric annular arrangement. When the first channel 1054 and the second channel 1055 are arranged in parallel, the interior of the first channel 1054 may be used for the imaging optical fiber and the illumination optical fiber and / or other instruments to pass through. The distal end of the first channel 1054 is open to the tissue. The diameter of the internal space of the second channel 1055 may be smaller than the diameter of the internal space of the first channel 1054. A turning portion 1050 is arranged at the distal end of the second channel, and the turning portion may include a steel wire anchor 1052 and a contraction spring tube 1053. The distal end of the contraction spring tube 1053 is connected to the steel wire anchor 1052. The distal end of the second channel is closed to the tissue. In some embodiments, the steering portion 1050 can be connected to the compound steering control device 2011. In some embodiments, the steering portion 1050 is connected to the compound steering control device 2011 through a traction wire 1051, and the compound steering control device 2011 controls the bending and steering of the steering portion 1050 through the traction wire 1051. In some embodiments, the lumen can also be provided with at least one other channel parallel to the first channel and / or the second channel, wherein the first channel and / or at least one other channel can be used for the passage of an imaging lighting system and / or other instruments, respectively. The steering of the lumen can be controlled by the steering portion of the second channel, thereby controlling the steering of the first channel and / or at least one other channel and the imaging lighting system and / or other instruments therein. For details about other channels, please refer to Fig.12 Detailed description.

[0047] In some embodiments, when a lumen is provided, the space inside the puncture needle tube wall and outside the lumen can be used as an injection lumen, and the injection lumen can communicate with external tissue. In some embodiments, the first channel in the lumen can be used as the injection lumen.

[0048] After the imaging fiber and the illumination fiber are inserted from the imaging illumination adapter, they enter the first channel of the lumen through the operating handle. After the distal end of the traction wire 1051 passes through the operating handle, it is connected to the wire fixing anchor 1052 at the distal end of the second channel, and the proximal end of the traction wire 1051 is connected to the round shaft portion of the composite steering control device 2011. After the puncture is completed, the needle tube moving device 2012 is adjusted to shorten the extension length of the puncture needle tube 1011, which is less than the extension length of the lumen and / or the imaging illumination fiber. Further, by turning the slender part of the composite steering control device 2011, the round shaft portion can be rotated along its center. The rotation of the round shaft portion drives the traction wire 1051, causing the contraction spring tube 1053 to contract and relax, driving the steering portion 1050 of the second channel to bend and turn. The steering portion 1050 further drives the bending of the imaging illumination fiber through the bending of the lumen, thereby controlling the bending direction and bending angle of the imaging illumination fiber.

[0049] like Figure 2 and Figure 7 As shown, the elongated portion is at position 1, the traction wire 1051 is in a relaxed state, the contraction spring tube 1053 is at its maximum length, and the steering portion is not deformed. Figure 5 and Figure 6 When the slender portion is at position 2, the round shaft portion rotates to the maximum angle following the movement of the slender portion, so that the traction wire 1051 contracts, pulls the wire fixing anchor 1052, and contracts the contraction spring tube 1053 to be in maximum deformation. Since the imaging illumination fiber is only pulled on one side of the second channel, the steering portion and the imaging illumination fiber are bent to the second channel side to the maximum deformation. In some embodiments, the bending angle can be 0-180°.

[0050] In some embodiments, the imaging illumination system can extend to the distal end of the puncture needle tube through the first channel of the lumen. During puncture, the imaging illumination fiber is completely located in the first channel of the lumen. When other operations are required after the puncture is completed, the relative position of the puncture needle tube 1011 and the imaging illumination fiber (lumen) is adjusted so that the extension length of the puncture needle tube 1011 is less than the extension length of the imaging illumination fiber, so that the puncture needle tube does not affect the bending of the turning portion of the lumen.

[0051] In some embodiments, the imaging illumination system and the puncture assembly can be rotated along the axial direction of the operating handle by rotating the operating handle along its axial direction. Multi-degree-of-freedom control can be achieved by rotating the imaging illumination fiber along the axial direction of the operating handle and bending and turning the imaging illumination fiber, making stripping or other operations more flexible.

[0052] In some embodiments, the wire anchor can be made of a material that is easy to develop. The wire anchor can be made of a material with high density, such as stainless steel. In the displayed image, due to the different densities of the wire anchor and the bone, the position of the distal end of the steering portion can be more clearly determined in the displayed image.

[0053] In some embodiments, a reflection area may be provided on the outer periphery of the steering portion or the distal end of the imaging illumination fiber to highlight the position of the distal end of the steering portion or the distal end of the imaging illumination fiber in the displayed image. For detailed settings of the reflection area, please refer to the description of the developing unit 1012. In some embodiments, the position of the distal end of the steering portion or the distal end of the imaging illumination fiber and the needle of the puncture needle tube can be more clearly determined in the displayed image through the reflection area and the developing unit, so as to achieve more precise control of the stripping operation and reduce accidental injuries. The coating and / or etching structure of the reflection area can be arranged in sections along the axial direction of the lumen and / or the imaging illumination fiber to mark the extension length of the imaging illumination system. For specific details, please refer to the developing unit.

[0054] In some embodiments, the lumen can be made of a flexible material. In some embodiments, the lumen can be made of a flexible material with high transparency. In some embodiments, the lumen can be made of at least two materials, and the part of the lumen where the turning portion 1050 is located can be made of a flexible material to facilitate bending and turning, and the remaining parts can be made of a rigid material. In some embodiments, in some embodiments, the cross-sectional shape of the lumen can be one of a circle, an ellipse, a gourd, etc.

[0055] In some embodiments, the imaging lighting system 3010 is detachably connected or integral with the puncture assembly 1010 and the operating handle 2010. In some embodiments, the puncture assembly 1010 and the operating handle 2010 are detachably connected or integral. The imaging lighting system is sequentially passed through the imaging lighting adapter and the operating handle into the cavity or the first channel of the puncture needle tube. When using a direct-viewing tissue release device for visual puncture, the extension length of the puncture needle tube is greater than the extension length of the imaging lighting system. With the assistance of the imaging lighting system, the needle of the puncture needle tube first contacts the skin, passes through the tissue, reaches the lesion, and the puncture is completed.

[0056] In some embodiments, the directly visible tissue release device can also perform other visual operations. Other visual operations may include visual release, visual drug administration, etc. After the puncture is completed, the relative position of the distal end of the puncture needle tube and the distal end of the imaging lighting system is adjusted by the needle tube moving device, so that the extended length of the puncture needle tube is less than the extended length of the lumen and / or the imaging lighting system, so that the imaging lighting optical fiber extends from the distal end of the cavity of the puncture needle tube, and the imaging lighting system is controlled to bend and turn by the composite steering control device. Specifically, when there is no lumen in the cavity of the puncture needle tube, the extended length of the puncture needle tube is reduced, so that the imaging lighting optical fiber extends from the distal end of the cavity of the puncture needle tube, and the imaging lighting optical fiber cannot be actively bent, and the imaging lighting optical fiber is used to obtain the image of the front end tissue; when there is a lumen in the cavity of the puncture needle tube, the extended length of the puncture needle tube is reduced, and after the imaging lighting optical fiber extends from the distal end of the puncture needle tube, such as Figure 5 As shown, by turning the composite steering control device to control the bending angle of the steering portion of the lumen, the imaging illumination fiber is controlled to bend, the lesion and the operation site are observed, and the adhesion tissue and spinal nerve separation operation can be performed when the adhesion is not serious. The operation may include at least one of the separation of adhesion tissue (e.g., overflowing nucleus pulposus) and spinal nerve, and medication and anti-inflammatory.

[0057] In some embodiments, the lumen and / or imaging illumination fibers can be used to dissect adherent tissue and spinal nerves.

[0058] In some cases, since the bending of the lumen and / or imaging illumination fiber is controllable and when the adhesion between the adhesion tissue and the spinal nerve is not severe, the lumen and / or imaging illumination fiber can be used to handle the adhesion between the adhesion tissue and the spinal nerve to complete the dissection.

[0059] In some embodiments, at least one first protrusion may be provided on the outside of the lumen. In some embodiments, at least one first protrusion may be provided on the outside of the lumen at a position corresponding to the first channel. The first protrusion may be made of a biocompatible material with a certain hardness, such as PP or polylactic acid, which will not cause accidental injury and can separate adhesion tissue and spinal nerves. The shape of the first protrusion may include at least one of a triangle, a rectangle, and a trapezoid. The first protrusion may have a certain thickness. The portion of the first protrusion that contacts the tissue may be a relatively sharp separation edge. The separation edge of the first protrusion can be used to separate adhesion tissue and spinal nerves. When the extended length of the puncture needle tube is less than the extended length of the lumen and / or the imaging illumination system, the separation edge of the first protrusion is further controlled by bending the steering portion so that the separation edge of the first protrusion contacts the adhesion tissue and spinal nerves to separate the adhesion tissue and spinal nerves.

[0060] In some embodiments, the first end surface 1056 at the distal end of the first channel 1054 can be an annular slope open to the tissue, which can increase the passability and adaptability during the turning and bending process.

[0061] Figure 8 1 is an enlarged schematic diagram of the distal end surface of the lumen according to some embodiments of this specification. Figure 8 As shown, the tube wall of the first channel may have a certain thickness. In some embodiments, the first protrusion is movably disposed in the tube wall of the lumen and controllably extends out or retracts from the tube wall.

[0062] In some embodiments, the wall of the first pipe may include a first wall 1057 and a second wall 1058. The first wall 1057 may be the outer wall of the lumen, and the second wall 1058 may be the wall of the first channel. The wall of the first channel may be an annular hollow cavity between the first wall 1057 and the second wall 1058. The first end face 1056 at the distal end of the first channel may have at least one notch 1059. The notch 1059 may be at least one of a rectangle, a square, and a circle. In some embodiments, each notch corresponds to a first protrusion. In some embodiments, a protrusion switch for extending or retracting the first protrusion may be provided on the operating handle, and the protrusion switch and each first protrusion may be mechanically or electrically connected. In practice, the plane figure corresponding to the first protrusion may be a sector, the central angle of the sector may be an obtuse angle, the first end (one end of the arc) of the first protrusion is fixed in the wall of the lumen, and the second end (the second end of the arc) may be movable to tilt or retract. When tilted, the fan-shaped arc can be a sharper separation edge of the first protrusion. When separating the adhesion of the adhesion tissue and the spinal nerve, the fan-shaped arc contacts the tissue and continues to rotate under the pressure of the tissue. The maximum angle of the first protrusion tilting is limited by providing a clamping mechanism, and the separation is completed by clamping the rotation of the fan-shaped. The movable second end of the first protrusion can be realized by a spring and a pressing mechanism (such as a cylindrical cam mechanism). The pressing mechanism corresponds to the protrusion switch on the handle. When the first protrusion extends out of the notch, the direction can be adjusted by the steering part of the lumen, and the separation edge of the first protrusion can separate the adhesion of the adhesion tissue and the spinal nerve. In some embodiments, since the first protrusion is enclosed in the notch during the puncture process, and when the first protrusion is retracted in the notch, its shape matches the notch, ensuring that there is no obvious gap in the outer wall of the lumen, preventing tissue and blood from entering the annular hollow cavity of the tube wall of the first channel, which is convenient for later cleaning. In some embodiments, an opening and a channel in the annular hollow cavity in the tube wall of the first channel can be set on the operating handle. The annular hollow cavity in the wall of the first channel can be injected with liquid through the opening provided in the operating handle, and the injected liquid (medicine and / or cleaning liquid) can enter the annular hollow cavity through the notch and then enter the tissue, so that while separating the adhesion tissue and the spinal nerve adhesion, the tissue can be prevented from entering the wall of the first channel. When the annular hollow cavity is provided inwardly on the wall of the first channel, the outer diameter of the original lumen is not increased, and a stripping tool (first protrusion) and an injection channel are added, so that simple stripping can be performed after the puncture is completed.

[0063] In some embodiments, at least the first protrusions may be arranged in an array of n×m, where n and m are both integers greater than or equal to 1. In some embodiments, the number of protrusions, the height of the protrusions extending out of the notch, and the position of the first protrusions may be controlled by a protrusion switch. For example, the protrusion switch may be set to different gears to control the number of protrusions, the height of the protrusions extending out of the notch, and the position of the protrusions. Due to individual differences in the subject and the degree of adhesion between the adhesion tissue and the spinal nerve, the number of protrusions, the height of the protrusions extending out of the notch, and the position of the protrusions of the first protrusions are dynamically adjusted.

[0064] In some embodiments, an energy tool, such as a radio frequency tool or a plasma generator, may be provided on the tube wall of the first channel for treating adhesions between adhesion tissues and spinal nerves and repairing wounds of separated spinal nerves, and its control may be connected to the handle.

[0065] In some embodiments, after the puncture is completed, the extension lengths of the imaging lighting system and the puncture needle can be changed simultaneously, so that the extension lengths of the imaging lighting system and the puncture needle are both less than the length of the lumen, so that the distal end of the lumen is exposed. The steering portion of the lumen is controlled by a composite steering control device to bend and steer, and then the steering portion of the lumen is used to treat the adhesion of the adhesion tissue and the spinal nerve to complete the stripping. Since the length of the lumen is greater than the extension length of the imaging lighting system, the extension length of the imaging lighting system can be greater than the extension length of the puncture needle, and the lumen can be made of a material with high transparency, the imaging lighting optical fiber can be used to complete the observation of the lesion and the stripping operation site.

[0066] In some embodiments, when the length of the lumen is greater than the extension length of the imaging illumination system, when the lumen is bent to the target position, the switch of the protrusion can be further controlled so that the protrusion extends out of the notch 1059 and retracts, and the adhesion tissue and spinal nerve are peeled off under the observation of the imaging illumination system. The target position can refer to the lumen bending and extending into the adhesion of the nucleus pulposus and the spinal nerve.

[0067] At the same time, during the puncture and / or other operations, medicine and / or cleaning solution can be injected through the injection port. The medicine and / or cleaning solution can be injected from the injection port and enter the tissue after passing through the injection cavity, thereby ensuring that the imaging lighting system has a clear field of view during operation and that treatment can be implemented.

[0068] In some embodiments, when the lumen can be used for stripping, no additional instrument channel is required and only an injection port is required, which relatively reduces the diameter of the puncture needle and improves the integration.

[0069] Fig. 9This is a second exemplary structural diagram of a direct-view tissue release device according to some embodiments of this specification. The following only describes the differences from the first exemplary structure 100, and the same parts are not described in detail. For the same parts, please refer to the first embodiment.

[0070] The difference compared to the first exemplary structure 100 lies in the arrangement of the operating hole 2014 of the operating handle 2010 in the second exemplary structure 200 .

[0071] In some cases, the adhesion area between the adhesion tissue and the spinal nerve is large and the adhesion condition is severe. The separation of the adhesion tissue and the spinal nerve cannot be completed by the steering part alone, and other instruments need to be added to separate the adhesion tissue and the spinal nerve.

[0072] In some embodiments, Fig. 9 As shown, the operating handle 2010 may include a compound steering control device 2011, a needle moving device 2012, and an operating hole 2014. The operating hole 2014 can be used for at least one of injecting a liquid medicine, injecting a cleaning liquid, and inserting an instrument. In some embodiments, the position of the operating hole 2014 can be the same as the position of the injection port in the first exemplary structure. In some embodiments, the position of the operating hole 2014 can be located on the connecting structure. The operating hole can be connected to the injection cavity or the lumen. For details about the injection cavity, please refer to the description of other contents of this specification. In some embodiments, as Fig. 9 As shown, the entry direction of the operating hole 2014 can be set at an acute angle to the axial direction of the operating handle 2010. In some embodiments, the entry direction of the operating hole 2014 can be set at an angle of less than 60 degrees to the axial direction of the operating handle. In some embodiments, the entry direction of the operating hole 2014 can be at an angle of 25-60° to the axial direction of the operating handle. Due to the large rigidity of some instruments, when the operating hole 2014 and the puncture needle tube 1011 are at an acute angle, it is convenient for the instrument to enter and exit the puncture assembly 1010 through the operating hole 2014. The operating hole is connected to the injection cavity of the puncture needle tube 1011. In some embodiments, the liquid medicine, cleaning fluid and / or instrument can directly enter the injection cavity of the puncture needle tube 1011 through the operating hole 2014.

[0073] The instrument may include at least one operating instrument selected from the group consisting of a J-shaped guide wire and a release forceps, for separating adhesion tissue and spinal nerves. In some embodiments, the instrument may enter the puncture assembly through the operating hole. In some embodiments, the instrument may enter the cavity and / or lumen of the puncture needle tube through the operating hole. For example, if the operating hole 2014 is connected to the lumen, the instrument may enter the first channel or other channels through the operating hole. If the operating hole 2014 is connected to the injection chamber in the puncture needle tube, the instrument may enter the cavity of the puncture needle tube through the operating hole. The release forceps are used only as an illustration in the specification of this application and are not intended to be limiting. For details about the release forceps, please refer to the relevant content of the third exemplary structure in this specification.

[0074] The imaging illumination optical fiber is sequentially passed through the imaging illumination adapter and the operating handle into the cavity or the first channel of the puncture needle tube. During visual puncture, the extension length of the puncture needle tube is greater than the extension length of the imaging illumination system. With the assistance of the imaging illumination system, the needle of the puncture needle tube first contacts the skin, passes through the tissue, and reaches the lesion.

[0075] When the puncture is completed, the relative positions of the puncture needle tube and the imaging illumination system are adjusted so that the turning portion of the lumen extends out from the distal end of the puncture needle tube. In some embodiments, after the imaging illumination optical fiber extends out from the distal end of the puncture needle tube, the composite steering control device controls the imaging illumination system to bend. Figure 5 As shown, by turning the composite steering control device to control the bending angle of the steering part, the imaging lighting system is controlled to bend, and the lesion and the operation site are observed. At the same time, during the puncture and / or other operations, the drug liquid and / or cleaning liquid can be injected through the injection port, and the drug liquid and / or cleaning liquid can be injected from the injection port and enter the tissue after passing through the injection cavity, so as to ensure the clear field of vision of the imaging lighting system during the operation, and to implement treatment.

[0076] Different from the use of the first exemplary structure, other instruments can also be added through the operation hole. When the puncture needle tube includes a lumen, the imaging illumination system is located in the lumen, and the instrument can enter the injection cavity (the space inside the puncture needle tube wall and / or outside the lumen) of the puncture needle tube 1011 through the operation hole to treat the adhesion of adhesion tissue and spinal nerves. In some embodiments, the instrument can also enter the first channel and / or other channels of the lumen through the operation hole, and extend from the distal end of the first channel and / or other channels, and the imaging illumination fiber also enters the lumen and extends from the distal end of the puncture needle tube. The imaging illumination fiber and the instrument can be located in the same channel in the lumen at the same time, or in the first channel and other channels of the lumen respectively. The bending angle of the steering part is controlled by toggling the composite steering control device, so that the imaging illumination fiber and / or instrument in the lumen are controlled to bend. In some embodiments, since the imaging illumination fiber is located in the lumen, it can be used in conjunction with an instrument located in the lumen or outside the lumen to perform a stripping operation. In some embodiments, a stripping operation can be performed through the steering part and / or the instrument, which is mainly used to separate adhesion tissue and spinal nerves. For example, when the imaging illumination fiber is located in the lumen, and at the same time, the instrument enters the injection cavity (the space inside the puncture needle tube wall and / or outside the lumen) of the puncture needle tube 1011, the adhesion tissue and spinal nerve can be separated by bending the imaging illumination fiber and cooperating with the instrument outside the lumen. Other similar details about the method of using the second exemplary structure can refer to the method of using the first exemplary structure.

[0077] Fig.10 1 is a third exemplary structural diagram of a direct-view tissue release device according to some embodiments of the present specification. The following only describes the differences from the first exemplary structure and the second exemplary structure, and the same parts are not described in detail. For the same parts, please refer to the relevant descriptions of the first exemplary structure 100 and the second exemplary structure 200. Compared with the first exemplary structure and the second exemplary structure, the difference lies in the setting of the connection structure in the third exemplary structure 300.

[0078] like Fig.10 As shown, the directly visible tissue release device 300 includes a puncture assembly 1010 , an operating handle 2010 , and an imaging lighting system 3010 .

[0079] The puncture assembly 1010 includes a puncture needle tube 1011 and a developing unit 1012. The details of the puncture assembly can refer to the description of the first exemplary structure and / or the second exemplary structure.

[0080] In some embodiments, the operating handle 2010 can be detachably designed from the connecting structure, such as Fig.10As shown. In the third exemplary structure 300, the connection structure can be Y-shaped and include three ports. The distal end of the connection structure is the first port, which is connected to the puncture assembly 1010. The proximal end of the connection structure includes a second port and a third port. The second port is provided with an imaging lighting system locking device 2015. The line where the second port and the first port are located is parallel to the axial direction of the puncture needle tube. The image illumination optical fiber passes through the imaging illumination conversion device 3011, the inner cavity of the operating handle, the imaging lighting system locking device 2015 (the second port), and the first port in sequence to enter the puncture needle tube 1011 of the puncture assembly 1010. The third port can be used as an operation hole 2014. The entry direction of the operation hole 2014 can be set at an angle to the line where the second port and the first port are located, so that the liquid medicine, cleaning liquid and / or instrument can pass through the operation hole 2014 and the first port and directly enter the puncture needle tube of the puncture assembly 1010. For other details about the operation hole 2014, please refer to the relevant content of the second exemplary structure 200.

[0081] exist Fig.10 and Fig.11 In the third exemplary structure 300 shown, the operating handle may include a compound steering control device 2011 and a needle tube moving device 2012. A lumen may be arranged axially in the cavity of the puncture needle tube. The lumen may include a first channel and a second channel. The imaging illumination optical fiber may enter the first channel through the second port. The instrument may enter the first channel through the operating hole. The compound steering control device may control the bending and steering of the lumen. The needle tube moving device may control the extension length of the puncture needle tube. For other details, please refer to the relevant contents of the second exemplary structure. At this time, the medicine and the cleaning liquid may enter the first channel through the operating hole.

[0082] In some embodiments, the imaging lighting system locking device 2015 can be used to fix the position of the imaging lighting system in the puncture assembly and the operating handle. During visual puncture, the extended length of the imaging lighting fiber is less than the extended length of the puncture needle tube. The imaging lighting system locking device 2015 is used to lock the position of the imaging lighting fiber at this time. With the assistance of the imaging lighting system, the needle of the puncture needle tube first contacts the skin, passes through the tissue, and reaches the lesion. When the puncture is completed, the imaging lighting system locking device 2015 is released, the relative position of the distal end of the imaging lighting fiber and the needle tip of the puncture needle tube is adjusted, and the extended length of the puncture needle tube is shortened by the needle tube moving device, so that the imaging lighting fiber and / or the curved part of the lumen are exposed from the distal end of the puncture needle tube. At this time, the position of the imaging lighting fiber is locked by the imaging lighting system locking device 2015, and subsequent operations are performed.

[0083] In some embodiments, at least one gear can be set for the locking device of the imaging lighting system. The at least one gear of the locking device of the imaging lighting system corresponds to at least one extension length range of the imaging lighting system. By controlling the extension length of the imaging lighting system, basic operation can be achieved in the case of poor vision.

[0084] The imaging lighting system 3010 includes an image lighting adapter 3011 and an image lighting transmission cable 3012 .

[0085] The image and lighting adapter 3011 can be used to convert and transmit image signals and lighting light sources. In some embodiments, the image and lighting adapter 3011 can include an image interface 3013 and a lighting interface 3014 .

[0086] In some embodiments, the instrument may include a release forceps. The following description uses a release forceps as an example of an instrument for operation, but is not limited thereto. Fig.11 As shown, the release forceps 5010 may include a release operation portion 5011 and a release forceps jaw portion 5012. The release forceps 5010 enters through the operation hole 2014 of the operation handle 2010 and extends from the distal end of the puncture needle tube 1011 to handle adhesion tissue and spinal nerve adhesion and other operations.

[0087] Fig.11 is an exemplary structural diagram of a release forceps according to some embodiments of this specification. Fig.10 , Fig.11 By pushing and pulling the release operation part 5011, the release forceps clamp part 5012 at the distal end of the release forceps extends out or retracts into the lumen, and then the adhesion tissue is clamped or fixed by opening and closing. Fig.12 is a partial enlarged view of the distal end of the release forceps shown in some embodiments of this specification. Fig.12 The lumen may also be provided with at least one other channel parallel to the first channel and / or the second channel, one of the first channel and the other channel may be used to extend into the imaging illumination fiber, and the other channel may be used to pass the instrument to prevent the instrument and the imaging illumination fiber from affecting each other, and the distal end of the second channel includes a turning portion closed to the tissue. Fig.12 As shown, one of the first channel and the other channel of the lumen can be used to pass the imaging illumination fiber, and the other can be used to pass the instrument, the release forceps can enter the first channel and the other channel through the operation hole, and the imaging illumination fiber can enter the other channel through the second port. In some embodiments, when the composite steering control device controls the second channel of the lumen to bend and turn, the release forceps and / or the imaging illumination fiber can be bent and turned.

[0088] In some embodiments, after the release forceps enter the lumen through the operation hole, the extension length of the imaging illumination system is reduced so that the release forceps can be operated within the field of view of the imaging illumination system.

[0089] The imaging lighting system is sequentially passed through the imaging lighting adapter, the second port and the first port of the operating handle into the cavity or the first channel of the puncture needle tube. During visual puncture, the extension length of the puncture needle tube is greater than the extension length of the imaging lighting system. With the assistance of the imaging lighting system, the needle of the puncture needle tube first contacts the skin, passes through the tissue, and reaches the lesion. When the puncture is completed, the relative position between the puncture needle tube and the imaging lighting system is adjusted by the needle tube moving device, so that the steering part of the lumen extends from the distal end of the puncture needle tube. The bending angle of the steering part is controlled by turning the composite steering control device, so that the imaging lighting system is controlled to bend, and the observation of the lesion and the operation site is completed. At the same time, during the puncture and / or other operations, the liquid medicine and / or cleaning liquid can be injected through the injection port, and the liquid medicine and / or cleaning liquid can be injected from the injection port and enter the tissue after passing through the injection cavity, so as to ensure the clarity of the field of vision of the imaging lighting system during operation, and to implement treatment.

[0090] Different from the use of the second exemplary structure 200, in the third exemplary structure 300, the connection structure is separately connected to the operating handle. In some embodiments, other instruments can be added through the operating hole. In some embodiments, after the puncture is completed, the instrument can enter the injection cavity of the puncture needle tube through the operating hole and the first port in sequence, and extend from the distal end of the puncture needle tube to treat the adhesion of adhesion tissue and spinal nerves. In some embodiments, the instrument can enter the first channel of the lumen through the operating hole and the first port, and extend from the distal end of the first channel. At this time, the bending angle of the steering part is controlled by toggling the composite steering control device, which drives the bending of the imaging illumination fiber and the instrument in the first channel. In some embodiments, the steering part and / or other instruments can be used to separate the adhesion tissue and spinal nerves. For details about the steering part and the composite steering control device, please refer to the relevant content of the second exemplary structure.

[0091] In some embodiments, when the imaging illumination fiber enters the first channel and the instrument enters the cavity outside the first channel inside the puncture needle tube, the composite steering control device can only control the steering of the imaging illumination fiber, but cannot control the steering of the instrument. At this time, by controlling the steering of the imaging illumination fiber and cooperating with the instrument, the stripping operation can be performed more flexibly. Also, since the instrument no longer occupies the space in the first channel, the space between the puncture needle tube wall and the lumen can be enlarged, which is convenient for the suction of other tissues such as the nucleus pulposus. Other similar details about the method of using the third exemplary structure can refer to the method of using the first exemplary structure.

[0092] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. For example, in the third exemplary structure 300, the lumen may include two channels, into which the instrument and the imaging illumination fiber are placed respectively, the lumen no longer includes a steering portion, and the operating handle no longer includes a composite steering control device. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0093] At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined.

[0094] In addition, unless explicitly stated in the claims, the order of the processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not intended to limit the order of the processes and methods of this specification. Although the above disclosure discusses some embodiments currently considered useful through various examples, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0095] Similarly, it should be noted that in order to simplify the description disclosed in this specification and thus help understand one or more embodiments, in the above description of the embodiments of this specification, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the subject matter of this specification are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0096] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0097] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this specification are hereby incorporated by reference in their entirety. Except for application history documents that are inconsistent with or conflicting with the contents of this specification, documents that limit the broadest scope of the claims of this specification (currently or later attached to this specification) are also excluded. It should be noted that if the descriptions, definitions, and / or use of terms in the materials attached to this specification are inconsistent or conflicting with the contents described in this specification, the descriptions, definitions, and / or use of terms in this specification shall prevail.

[0098] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, as an example and not a limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

1. A device for direct visual tissue release, characterized in that: include: The puncture assembly comprises a puncture needle tube, the interior of the puncture needle tube comprises a cavity, the cavity is open to the tissue, and a needle tip is arranged at the distal end of the puncture needle tube; An operating handle, the operating handle comprising a composite steering control device and a needle tube moving device; An imaging lighting system, the imaging lighting system comprising an imaging lighting adapter and an imaging lighting optical fiber, the distal end of the imaging lighting system being capable of bending and turning, and the imaging lighting system extending through the cavity of the puncture needle tube to the distal end of the puncture needle tube; The needle tube moving device is used to adjust the relative position between the distal end of the puncture needle tube and the distal end of the imaging illumination system, and the composite steering control device is used to control the steering of the imaging illumination system.

2. The device for direct visual tissue release according to claim 1, characterized in that: The operating handle comprises an operating hole, and the operating hole is used for at least one of injecting a medical solution, injecting a cleaning solution, and inserting an instrument.

3. The device for direct visual tissue release according to claim 1, characterized in that: The composite steering control device includes a slender portion, a round shaft portion and a traction wire. The round shaft portion is connected to the imaging illumination system through the traction wire. By moving the slender portion, the slender portion drives the round shaft portion to rotate, and pulls the traction wire, so that the imaging illumination optical fiber in the imaging illumination system bends and steers.

4. The device for direct visual tissue release according to claim 1, characterized in that: The needle tube moving device changes the extended length of the puncture needle tube and adjusts the relative position of the distal end of the puncture needle tube and the distal end of the imaging illumination system.

5. The device for direct visual tissue release according to claim 1, characterized in that: The operating handle is provided with an imaging illumination system locking device for fixing the position of the imaging illumination system in the puncture assembly and the operating handle.

6. The device for direct visual tissue release according to claim 3, characterized in that: A lumen is axially arranged in the cavity of the puncture needle tube, and the distal end of the lumen includes a turning portion.

7. The device for direct visual tissue release according to claim 6, characterized in that: The interior of the lumen is divided into a first channel and a second channel. A steering portion is provided at the distal end of the second channel. The steering portion is connected to the composite steering control device. The composite steering control device controls the bending and steering of the steering portion through the traction wire.

8. The device for direct visual tissue release according to claim 7, characterized in that: The instrument enters the cavity of the puncture needle tube and / or the first channel of the tube cavity through the operation hole.

9. The device for direct visual tissue release according to claim 2, characterized in that: The instrument comprises at least one of a J-shaped guide wire and a releasing forceps, and the instrument enters the puncture assembly through the operation hole, and the steering part and / or the instrument performs a stripping operation.

10. The device for direct visual tissue release according to claim 1, characterized in that: A reflection area is arranged on the outer periphery of the turning portion or the distal end of the imaging illumination optical fiber.

11. A method for using a direct-view tissue release device, characterized in that: include: The puncture assembly comprises a puncture needle tube and a developing portion located at the outer periphery of the distal end of the puncture needle tube, the interior of the puncture needle tube comprises a cavity, the cavity is open to the tissue, and the distal end of the puncture needle tube is provided with a needle tip; An operating handle, the operating handle comprising a composite steering control device and a needle tube moving device; An imaging lighting system, the imaging lighting system comprising an imaging lighting adapter and an imaging lighting optical fiber, the distal end of the imaging lighting system being capable of bending and turning, and the imaging lighting system extending through the cavity of the puncture needle tube to the distal end of the puncture needle tube; The needle tube moving device is used to adjust the relative position of the distal end of the puncture needle tube and the distal end of the imaging illumination system, and the composite steering control device is used to control the steering of the imaging illumination system; the use method includes: Visual puncture: insert the imaging illumination system into the cavity of the puncture needle tube through the operating handle, so that the extended length of the puncture needle tube is greater than the extended length of the imaging illumination system, and use the puncture needle tube to perform puncture; Visual operation: after the puncture is completed, the relative positions of the distal ends of the puncture needle tube and the imaging illumination system are adjusted by the needle tube moving device, so that the imaging illumination optical fiber extends from the distal end of the cavity of the puncture needle tube, and the bending and steering of the imaging illumination system are controlled by the composite steering control device.

Images