Tissue releasing device capable of being seen directly

Abstract

The utility model provides a direct-visible tissue releasing device, which comprises a puncture component, the puncture component comprises a puncture needle tube and a developing part positioned on the periphery of the far end of the puncture needle tube, the puncture needle tube comprises a cavity inside, the cavity is open to tissues, 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 utility model relates to medical field especially relates to a kind of direct vision tissue release device. BACKGROUND

[0002] At present, clinical implementation intervention release reconstruction repair, under the CT guidance, needle is placed in the spinal canal, epidural, nerve root medial and intervertebral disc herniation. Break through the barrier of spinal canal, inject medicine to the surface of damaged intervertebral disc tear and the periphery of inflamed injured sciatic nerve, anti-inflammatory, blood-activating promote fibrous ring self-healing, while nourishing nerve, repairing nerve, release adhesion. Intraoperative only through indirect image to judge drug diffusion position, not accurate, and cannot realize physical adhesion release.

[0003] Therefore, it is desirable to provide a kind of direct vision tissue release device, based on the design of high integration, can realize visual puncture and physical adhesion release under visual condition simultaneously. SUMMARY

[0004] One of the embodiments of the utility model provides a kind of direct vision tissue release device, comprising: puncture assembly, puncture assembly includes puncture needle tube and the development part located in the outer periphery of puncture needle tube far end, the inside of puncture needle tube includes cavity, cavity is open to tissue, the distal end of puncture needle tube is provided with needle tip, development part is set in the rear end of needle tip;Operating handle, operating handle includes composite steering control device, needle tube moving device;Imaging illumination system, imaging illumination system includes image illumination adapter, imaging illumination optical fiber, the distal end of imaging illumination system can be bent and steered, imaging illumination system passes through the cavity of puncture needle tube, extend to the distal end of puncture needle tube;Needle tube moving device is used for the adjustment of the relative position of the distal end of puncture needle tube and the distal end of imaging illumination system, composite steering control device is used to control the steering of imaging illumination system.

[0005] The embodiment of the utility model provides a kind of direct vision tissue release device's use method, comprising: puncture assembly, puncture assembly includes puncture needle tube and is located the development part of puncture needle tube far end periphery, the inside of puncture needle tube includes cavity, cavity is open to tissue, and the distal end of puncture needle tube is provided with needle tip;Operating handle, operating handle includes composite steering control device, needle tube moving device;Imaging illumination system, imaging illumination system includes image illumination adapter, imaging illumination fiber, the distal end of imaging illumination system can be bent and steered, and imaging illumination system passes through the cavity of puncture needle tube, extends to the distal end of puncture needle tube;Needle tube moving device is used for the adjustment of the relative position of the distal end of puncture needle tube and the distal end of imaging illumination system, and composite steering control device is used for controlling the steering of imaging illumination system;Use method includes: visual puncture, make the protruding length of puncture needle tube greater than the protruding length of imaging illumination system, using puncture needle tube to puncture, by operating handle into the cavity of puncture needle tube with imaging illumination system, so that imaging illumination fiber protrudes from the distal end of the cavity of puncture needle tube, and the relative position of the distal end of puncture needle tube and the distal end of imaging illumination system is adjusted after puncture, so that imaging illumination fiber protrudes from the distal end of the cavity of puncture needle tube, and the bending steering of imaging illumination system is controlled by composite steering control device.

[0006] The direct vision tissue release device of the embodiment of the utility model can realize visual puncture and physical adhesion release under visual conditions simultaneously based on high integration design. BRIEF DESCRIPTION OF DRAWINGS

[0007] The present specification will be further illustrated in the mode of exemplary embodiments, which will be described in detail by the drawings. These embodiments are not restrictive, and in these embodiments, the same numbers represent the same structures, wherein:

[0008] Figure 1 is the first exemplary schematic diagram of the direct vision tissue release device shown in the utility model;

[0009] Figure 2 is the first exemplary structural diagram of the direct vision tissue release device shown in the utility model;

[0010] Figure 3 is the schematic diagram of the working state of the puncture needle tube shown in the utility model;

[0011] Figure 4 is the exemplary schematic diagram of the puncture needle tube shown in the utility model;

[0012] Figure 5 is the structural schematic diagram of the steering part of the imaging illumination system shown in the utility model in the bent state;

[0013] Figure 6is a partial enlarged view of the turning part of the imaging lighting system according to the present application;

[0014] Figure 7 is a partial enlarged view of the composite turning control device according to the present application;

[0015] Figure 8 is an enlarged schematic view of the distal end face of the lumen according to the present application;

[0016] Figure 9 is a second exemplary structural view of the direct-viewing tissue release device according to the present application;

[0017] Figure 10 is a third exemplary structural view of the direct-viewing tissue release device according to the present application;

[0018] Figure 11 is an exemplary structural view of the release forceps according to the present application;

[0019] Figure 12 is a partial enlarged view of the distal end of the release forceps according to the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present application, many technical details are proposed in order to make the readers 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 in the claims of the present application can be implemented.

[0021] Unless otherwise required by the context, the words "comprise", "comprising", "include", "including", and "has" and variants thereof throughout the specification and claims are to be construed as open-ended, that is, as "including, but not limited to".

[0022] The embodiments of the present application will be described in detail below with reference to the drawings, so as to make the purpose, characteristics and advantages of the present application more clear. It should be understood that the embodiments shown in the drawings are not a limitation on the scope of the present application, but only for illustrating the essential spirit of the technical scheme of the present application.

[0023] Throughout this specification, references to "an 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. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0024] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0025] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0026] The embodiments of this utility model are described below with reference to the accompanying drawings.

[0027] Figure 1 This is a first exemplary schematic diagram of a tissue loosening device that can be directly visualized according to the present invention. Figure 2 This is a first exemplary structural diagram of the tissue loosening device that can be directly visualized according to the present invention. Figure 3 This is a schematic diagram illustrating the working state of the puncture needle according to this utility model. Figure 4 This is an exemplary schematic diagram of the puncture needle according to the present invention.

[0028] like Figure 1 and Figure 2 The first exemplary schematic diagram and structural diagram of the direct-view tissue release device 100 shown are provided. The direct-view tissue release device 100 includes a puncture assembly 1010, an operating handle 2010, and an imaging illumination system 3010.

[0029] The puncture assembly 1010 may include a puncture needle 1011 and a imaging section 1012. In some embodiments, the puncture assembly 1010 includes a puncture needle 1011 and an imaging section 1012 located on the outer periphery of the distal end of the puncture needle 1011. A needle tip is provided at the distal end of the puncture needle 1011. The proximal end of the puncture needle 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 closer to the operator's body. The distal and proximal ends of the operating handle 2010 and the imaging illumination system 3010 are in the same direction as the distal and proximal ends of the puncture needle.

[0030] The puncture needle tube can be used for puncture. The internal space enclosed by the puncture needle tube 1011 can be a cavity which is open to the tissue. In some embodiments, the cavity inside the puncture needle tube 1011 allows the imaging illumination system and / or other instruments to pass through, achieving the functions of illumination, image acquisition of the tissue, drug injection, stripping, suction, etc.

[0031] In some embodiments, the cross section of the puncture needle tube 1011 can be circular, oval, etc. In some embodiments, the diameter of the puncture needle tube 1011 can be 0.7-2 mm. In some embodiments, the diameter of the puncture needle tube 1011 can be 0.7-1.5 mm. In some embodiments, the diameter of the puncture needle tube 1011 can be 0.7-1.2 mm. In some embodiments, the diameter of the puncture needle tube 1011 can be 0.7-1.0 mm. In some embodiments, the diameter of the puncture needle tube 1011 can be 0.7-0.9 mm. In some embodiments, the puncture needle tube 1011 can be made of rigid material, for example, the rigid material can be stainless steel, etc. The rigid material can better maintain the linear shape of the needle tube, reducing the possibility of bending and deviation, thereby improving the accuracy and efficiency of puncture.

[0032] In some embodiments, the protruding length of the puncture needle tube 1011 (the length of the puncture needle tube protruding from the operation handle) during puncture can be no more than 120 mm. In some embodiments, the protruding length of the puncture needle tube 1011 during puncture can be no more than 100 mm. In some embodiments, the protruding length of the puncture needle tube 1011 during puncture can be no more than 80 mm.

[0033] In some embodiments, the puncture needle tube 1011 can be provided with a scale outside for marking the depth of the puncture needle tube into the tissue or the protruding length of the puncture needle tube. The scale on the puncture needle tube 1011 can be marked from the needle tip.

[0034] In some embodiments, the cavity of the puncture needle tube can be gapless. The distal end of the imaging illumination system can protrude into the puncture needle tube and can protrude 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 illumination fiber can be adjusted by changing the protruding length of the puncture needle tube 2010 and / or the protruding length of the imaging illumination system 3010 (the length of the distal end of the imaging illumination fiber protruding from the operation handle). In some embodiments, the protruding length of the puncture needle tube 1011 can be adjusted by the needle tube moving device of the operation handle, and the specific content can be referred to the description of the operation handle in this application.

[0035] As Figure 3The left-middle image shows a magnified view of the distal end of the puncture process. During the puncture, the extension length of the puncture needle 1011 exceeds the extension length of the imaging illumination system 3010; that is, the distal end of the imaging illumination system is completely located within the cavity inside the puncture needle. Figure 3 The right-hand image shows a magnified view of the distal end after puncture. When other operations are required after puncture, the relative position of the distal end of the puncture needle 1011 and the imaging illumination system 3010 is adjusted so that the extension length of the puncture needle 1011 is less than the extension length of the imaging illumination system 3010. This can prevent the needle tip from scratching normal tissue during other operations.

[0036] In some embodiments, the imaging section can be used to mark the position of the needle tip of the puncture needle. For example... Figure 2 As shown, the developing section 1012 is used to display the position of the protruding needle tip of the puncture needle tube in an image on the display. The developing section 1012 may be located on the distal outer periphery of the puncture needle tube 1011. In some embodiments, the developing section 1012 may be arranged annularly around the outer periphery of the puncture needle tube. In some embodiments, the developing section 1012 is disposed at the rear end of the needle tip. In some embodiments, the developing section 1012 may be a coating and / or etching structure. In some embodiments, the developing section may include at least one developing segment. Figure 4 As shown, the puncture needle 1010 is divided into multiple imaging sections. The imaging section can be divided into sections along the axial direction of the puncture needle to mark the extension length of the puncture needle. Each imaging section in the imaging section corresponds to a range of the extension length of the puncture needle, and the imaging sections can be separated by blank spaces.

[0037] In some embodiments, the operating handle 2010 may include a housing, a composite steering control device 2011, a needle movement 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 1011. The axial direction may refer to the direction in which the length of the puncture needle 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 1011 of the puncture assembly 1010, and the proximal port is connected to the image illumination adapter of the imaging illumination system 3010. The interior of the housing of the operating handle 2010 may include an inner cavity communicating with the cavity of the puncture needle 1011. Figure 2 As shown, the inner cavity of the operating handle 2010 may be equipped with a composite steering control device 2011 and a needle moving device 2012.

[0038] The composite steering control device is used to control the steering of the distal end of the imaging illumination system (imaging illumination fiber). For example... Figure 2As shown, the composite steering control device 2011 can include an elongated portion, a round shaft portion, and a traction wire. The elongated portion can be integrally formed with the round shaft portion, or detachably connected. The elongated portion and the round shaft portion can be rigid materials. The operating handle 2010 shell is provided with a rectangular recess corresponding to the elongated portion. 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 elongated portion can be extended through the recess slot and can move in the recess. The round shaft portion is connected to the imaging illumination system through the traction wire. By pulling the elongated portion, the elongated portion moves between position 1 and position 2, drives the round shaft portion to rotate, and pulls the traction wire, so that the imaging illumination fiber in the imaging illumination system is bent and turned. Among them, position 1 is the side of the recess slot deviated from the puncture assembly, and position 2 is the side of the recess slot deviated from the image illumination adapter. For specific details of the bending of the imaging illumination system, please refer to the description of other contents of the specification, for example, the related description of the imaging illumination system 3010.

[0039] The needle tube moving device 2012 can be an adjusting device located in the inner cavity of the operating handle 2010, used to adjust the extension length of the puncture needle tube 1011.

[0040] In some embodiments, the needle tube moving device 2012 can change the extension length of the puncture needle tube, which is used to adjust the relative position of the distal end of the puncture needle tube 1011 and the distal end of the imaging illumination system. In some embodiments, the extension length of the puncture needle tube 1011 out of 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 axis, 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 developed part on the puncture needle tube and the scale on the needle tube moving device, the accuracy of determining the extension length of the puncture needle tube is improved.

[0041] In some embodiments, the needle movement device may have at least one setting. Each setting corresponds to the extension length of at least one puncture needle. Different operations, such as puncture and treatment, can be performed by controlling the extension length of the puncture needle. The setting may be a button, a latch, a gear, etc. By setting at least one setting, basic operations can be performed even in situations with poor visibility. The needle movement device may also include a locking mechanism, which locks the extension length of the puncture needle after the setting is adjusted, preventing changes in the extension length during use and potential tissue injury. In some embodiments, the needle movement device may also include a fine-tuning structure. This fine-tuning structure allows for precise adjustment of the puncture needle extension length after the setting is selected, and, in conjunction with the imaging section and the scale around the puncture needle, achieves more accurate puncture depth adjustment to suit different patients and operational needs.

[0042] The distal end of the operating handle 2010 is a connecting structure. This connecting structure connects the operating handle and the puncture assembly. The connecting structure is either detachably or integrally connected to other structures of the operating handle, such as the housing. 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. In some embodiments, the opening of the distal portion of the connecting structure communicates with the puncture needle, and the opening of the proximal portion is connected to the image illumination adapter of the imaging illumination system.

[0043] like Figure 2 As shown, the operating handle 2010 may be provided with an injection port 2019 at a certain angle to its axis. The injection port 2019 may be an injection port for medication and / or cleaning fluid. The injection port may be on the connecting structure 2013 or the housing. In some embodiments, the injection port is connected to the injection chamber inside the puncture needle tube. In some embodiments, the space between the tube wall of the puncture needle tube and the imaging illumination fiber may serve as the injection chamber. In some embodiments, such as Figure 2 As shown, the inlet direction of the injection port 2019 can be perpendicular to the axis of the operating handle 2010. In some embodiments, the inlet direction of the injection port 2019 can be at a certain angle to the axis of the operating handle 2010. In some embodiments, the inlet direction of the injection port 2019 forms an acute angle with the axis of the operating handle 2010. In some embodiments, the inlet direction of the injection port 2019 forms a 60° angle with the axis of the operating handle 2010. Medication and / or cleaning solution can be injected from the injection port 2019, passing through the connecting tube between the injection port 2019 and the puncture needle 1011, entering the injection chamber within the puncture needle 1012, and ultimately entering the tissue.

[0044] The imaging illumination system 3010 can include an image illumination adapter 3011, an imaging illumination optical fiber 3012. The distal end of the image illumination adapter 3011 can be connected with the proximal end of the operating handle 2010. In some embodiments, the image illumination adapter 3011 can include an image interface 3012 and an illumination interface 3013. The image interface 3012 can be externally connected with an image processing device for transmitting image signals to the image processing device. The illumination interface 3013 can be externally connected with a light source.

[0045] In some embodiments, the imaging illumination optical fiber can include an imaging optical fiber and an illumination optical fiber. The distal end of the imaging illumination system 3010 can be the imaging illumination optical fiber. The imaging optical fiber and the illumination optical fiber enter from the image interface 3012 and the illumination interface 3013 of the image illumination adapter 3011, respectively, pass through the cavity of the puncture needle tube, and extend to the distal end of the puncture needle tube to obtain image signals of the tissue. The image signals of the tissue are transmitted to the image processing device through the imaging optical fiber, and the processed image signals can be displayed on the externally connected display device. The light signals generated by the externally connected light source can be transmitted to the illumination optical 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 this application, the imaging illumination optical fiber can refer to the components used for imaging and illumination, and can include optical lenses, electronic lenses (such as CMOS, CCD).

[0046] In some embodiments, the distal end of the imaging illumination system can be provided with a turning part, which can be bent to turn. Figure 5 FIG. 6 is a structural schematic view of the turning part of the imaging illumination system according to the present application in a bent state. Figure 6 FIG. 7 is a partial enlarged view of the turning part of the imaging illumination system according to the present application. Figure 7 FIG. 8 is a partial enlarged view of the composite turning control device according to the present application.

[0047] In some embodiments, a lumen can be disposed axially within the cavity of the puncture needle tube. In some embodiments, the distal end of the lumen is provided with a steering portion. In some embodiments, the length of the lumen can be the same as the extension length of the imaging and illumination system. In some embodiments, the distal end of the lumen can include a steering portion 1050, which can be bent. In some embodiments, the lumen can be divided into a first channel 1054 and a second channel 1055. In some embodiments, the first channel 1054 and the second channel 1055 can be one of parallelly disposed, concentrically annularly disposed. When the first channel 1054 and the second channel 1055 are parallelly disposed, the interior of the first channel 1054 can be used for the passage of the imaging optical fiber and the illumination optical fiber and / or other instruments. The distal end of the first channel 1054 is open to the tissue. The inner space of the second channel 1055 can have a diameter smaller than that of the first channel 1054. The distal end of the second channel is provided with a steering portion 1050, which can include a steel wire fixed anchor 1052 and a retractable spring tube 1053. The distal end of the retractable spring tube 1053 is connected to the steel wire fixed 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 composite steering control device 2011. In some embodiments, the steering portion 1050 is connected to the composite steering control device 2011 through the traction steel wire 1051, and the composite steering control device 2011 controls the steering portion 1050 to bend and steer through the traction steel wire 1051. In some embodiments, the lumen can further be provided with at least one other channel parallel to the first channel and / or the second channel, wherein the first channel and / or the at least one other channel can be used for the passage of the imaging and illumination system and / or other instruments, respectively. The steering of the lumen can be controlled through the steering portion of the second channel, and thus the steering of the first channel and / or the at least one other channel and the imaging and illumination system and / or other instruments inside them. For details of the other channel, please refer to the detailed description of Figure 12 .

[0048] In some embodiments, when the lumen is provided, the space inside the puncture needle tube wall and outside the lumen can be used as a liquid injection cavity, which can be in communication with the external tissue. In some embodiments, the first channel inside the lumen can be used as a liquid injection cavity.

[0049] When the imaging fiber and the illumination fiber are inserted from the imaging illumination adapter, the distal end of the traction wire 1051 is connected to the steel wire fixed anchor 1052 at the distal end of the second channel by operating the handle into the first channel of the lumen, and the proximal end of the traction wire 1051 is connected to the round shaft part of the composite steering control device 2011. When the puncture is completed, the needle tube moving device 2012 is adjusted so that the extension length of the puncture needle tube 1011 is shorter than the extension length of the lumen and / or the imaging illumination fiber, and further, by rotating the elongated part of the composite steering control device 2011, the round shaft part can be rotated along the center thereof. The rotation of the round shaft part drives the traction wire 1051, so that the contraction spring tube 1053 contracts and relaxes, and the steering part 1050 of the second channel bends and steers, and the steering part 1050 further drives the bending of the imaging illumination fiber through the bending of the lumen, realizing the control of the bending direction and bending angle of the imaging illumination fiber.

[0050] As shown in Figure 2 and Figure 7 , the elongated part is at position 1, the traction wire 1051 is in a relaxed state, the contraction spring tube 1053 is at a maximum length, and the steering part does not deform. In combination with Figure 5 and Figure 6 , when the elongated part is at position 2, the round shaft part is rotated to the maximum angle following the rotation of the elongated part, so that the traction wire 1051 contracts, pulls the steel wire fixed anchor 1052, and the contraction spring tube 1053 contracts and deforms to the maximum, and since the imaging illumination fiber is pulled on only one side of the second channel, the steering part and the imaging illumination fiber bend to the maximum deformation on one side of the second channel. In some embodiments, the bending angle can be 0-180°.

[0051] In some embodiments, the imaging illumination system can extend through the first channel of the lumen to the distal end of the puncture needle tube. During puncture, the imaging illumination fiber is completely located in the first channel of the lumen. When other operations are needed 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 shorter than the extension length of the imaging illumination fiber, so that the puncture needle tube does not affect the bending of the steering part of the lumen.

[0052] In some embodiments, by rotating the handle along its axial direction, the imaging illumination system and the puncture assembly can be rotated along the axial direction of the handle. By rotating the imaging illumination fiber along the axial direction of the handle and bending the steering of the imaging illumination fiber, multi-degree-of-freedom control can be realized, making the stripping or other operations more flexible.

[0053] In some embodiments, the wire fixation anchor can be made of a material that is easy to visualize. The wire fixation anchor can be made of a material with high density, such as stainless steel. In the display image, the position of the distal end of the turn can be more clearly determined due to the difference in density between the wire fixation anchor and the bone.

[0054] In some embodiments, a reflective region can be provided on the outer periphery of the distal end of the turn or the imaging illumination fiber, for highlighting the position of the distal end of the turn or the imaging illumination fiber in the display image. The detailed settings of the reflective region can be referred to the description of the visualization section 1012. In some embodiments, the position of the distal end of the turn or the imaging illumination fiber, the needle of the puncture needle tube can be more clearly determined in the display image through the reflective region and the visualization section, achieving more accurate control of the stripping operation and reducing the risk of injury. The coating and / or etched structure of the reflective region can be segmented along the axial direction of the lumen and / or the imaging illumination fiber, for marking the extension length of the imaging illumination system. For specific details, please refer to the visualization section.

[0055] 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, the part of the lumen where the turn 1050 is located can be made of a flexible material to facilitate bending of the turn, and the remaining part can be made of a rigid material. In some embodiments, the cross-sectional shape of the lumen can be one of a circle, an ellipse, a gourd, etc.

[0056] In some embodiments, the imaging illumination system 3010 is detachably connected with the puncture assembly 1010 and the operation handle 2010, or is an integral part. In some embodiments, the puncture assembly 1010 and the operation handle 2010 are detachably connected or are an integral part. The imaging illumination system is sequentially passed through the imaging illumination adapter, the operation handle, and into the cavity or the first channel of the puncture needle tube. When using the direct vision tissue release device for 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, and the puncture is completed.

[0057] In some embodiments, the direct vision tissue release device can also perform other visual operations. The other visual operations can include visual release, visual administration, etc. After the puncture is completed, the relative positions of the distal end of the puncture needle tube and the distal end of the imaging illumination system are adjusted by the needle tube moving device, so that the protruding length of the puncture needle tube is less than the protruding length of the lumen and / or the imaging illumination system, so that the imaging illumination optical fiber protrudes from the distal end of the cavity of the puncture needle tube, and the imaging illumination system is controlled to bend by the composite steering control device. Specifically, when no lumen is arranged in the cavity of the puncture needle tube, the protruding length of the puncture needle tube is reduced, so that the imaging illumination optical fiber protrudes from the distal end of the cavity of the puncture needle tube, the imaging illumination optical fiber cannot actively bend, and the imaging illumination optical fiber is used to acquire the image of the front-end tissue; when the lumen is arranged in the cavity of the puncture needle tube, the protruding length of the puncture needle tube is reduced, and after the imaging illumination optical fiber protrudes from the distal end of the puncture needle tube, the bending angle of the steering portion of the lumen is controlled by rotating the composite steering control device, so as to control the bending of the imaging illumination optical fiber, complete the observation of the lesion and the operation site, and can handle the separation operation of the adhesion tissue and the spinal nerve whose adhesion is not serious. The operation can include at least one of the separation of the adhesion tissue (for example, the overflow of the nucleus pulposus) and the spinal nerve, the administration of anti-inflammatory drugs, etc. Figure 5

[0058] In some embodiments, the lumen and / or the imaging illumination optical fiber can be used to separate the adhesion tissue and the spinal nerve whose adhesion is serious.

[0059] In some cases, since the bending of the lumen and / or the imaging illumination optical fiber is controllable, and when the adhesion of the adhesion tissue and the spinal nerve is not serious, the lumen and / or the imaging illumination optical fiber can be used to handle the adhesion of the adhesion tissue and the spinal nerve, and complete the separation.

[0060] In some embodiments, at least one first protrusion can be arranged on the outer side of the lumen. In some embodiments, at least one first protrusion can be arranged on the outer side of the lumen corresponding to the first channel. The first protrusion can be made of pp or polylactic acid similar material with good biocompatibility and certain hardness, which can neither misinjure nor separate the adhesion tissue and the spinal nerve. The shape of the first protrusion can include at least one of a triangle, a rectangle, and a trapezoid. The first protrusion can have a certain thickness. The part of the first protrusion in contact with the tissue can be a relatively sharp separation edge. The separation edge of the first protrusion can be used to separate the adhesion tissue and the spinal nerve. When the protruding length of the puncture needle tube is less than the protruding length of the lumen and / or the imaging illumination system, the separation edge of the first protrusion is further brought into contact with the adhesion tissue and the spinal nerve by controlling the bending of the steering portion, so as to separate the adhesion tissue and the spinal nerve.

[0061] ​In some embodiments, the first end surface 1056 of the distal end of the first channel 1054 can be a ring-shaped bevel open to the tissue, which can increase the passability and adaptability in the process of turning the bend.

[0062] Figure 8 is a magnified schematic view of the distal end surface of the lumen according to the present application. As shown, the tube wall of the first channel can have a certain thickness. In some embodiments, the first protrusion can be movably arranged in the tube wall of the lumen, and controllable to extend out of or retract into the tube wall. Figure 8

[0063] ​In some embodiments, the tube wall of the first channel can include a first tube wall 1057 and a second tube wall 1058. The first tube wall 1057 can be the outer wall of the lumen, and the second tube wall 1058 can be the tube wall of the first channel. The tube wall of the first channel can be an annular hollow cavity between the first tube wall 1057 and the second tube wall 1058. The first end surface 1056 of the distal end of the first channel can have at least one notch 1059. The notch 1059 can be at least one of rectangular, square, or circular. In some embodiments, each notch corresponds to a first protrusion. In some embodiments, the operating handle can be provided with a protrusion switch for extending or retracting the first protrusion, and the protrusion switch and each first protrusion can be mechanically or electrically connected. In some embodiments, the first protrusion corresponds to a sector, and the central angle of the sector can be an obtuse angle. The first end (one end of the arc) of the first protrusion is fixed in the tube wall of the lumen, and the second end (the second end of the arc) is movably raised or retracted. When raised, the arc of the sector can be a relatively sharp separation edge of the first protrusion. When separating the adhesion between the adhesion tissue and the spinal nerve, the arc of the sector contacts the tissue, and the arc continues to rotate under the pressure of the tissue. By setting a detent mechanism to limit the maximum angle of the raised first protrusion, the rotation of the sector is stopped, and the separation is completed. The movable second end of the first protrusion can be achieved by a spring or 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 turning part of the lumen, and the separation edge of the first protrusion can separate the adhesion between the adhesion tissue and the spinal nerve. In some embodiments, since the first protrusion is enclosed in the notch during the puncture process, and the shape of the first protrusion matches the notch when the first protrusion is retracted in the notch, the outer wall of the lumen has no obvious gap, preventing the tissue and blood from entering the annular hollow cavity of the tube wall of the first channel, and facilitating later cleaning. In some embodiments, an opening and a channel can be provided on the operating handle to enter the annular hollow cavity of the tube wall of the first channel. By setting an opening on the operating handle, the annular hollow cavity of the tube wall of the first channel can be injected with liquid (liquid medicine and / or cleaning liquid). The injected liquid can enter the annular hollow cavity through the notch, and then enter the tissue, thereby separating the adhesion between the adhesion tissue and the spinal nerve while preventing the tissue from entering the first channel.

[0064] In some embodiments, at least the first protrusion can be arranged in an n x m array, where n and m are integers greater than or equal to 1. In some embodiments, the number of protrusions, the height of the protrusions extending out of the slot, and the position of the first protrusion can be controlled by a protrusion switch. For example, the protrusion switch can be set to different gears to control the number of protrusions, the height of the protrusions extending out of the slot, and the position of the first protrusion. Due to individual differences of the subject and the adhesion degree of the adhesion tissue and the spinal nerve, the number of protrusions, the height of the protrusions extending out of the slot, and the position of the first protrusion can be dynamically adjusted.

[0065] In some embodiments, an energy tool, such as a radio frequency tool or a plasma generator, can also be provided on the tube wall of the first channel for treating the adhesion of the adhesion tissue and the spinal nerve and repairing the wound surface of the separated spinal nerve, and the control thereof can be connected to the handle.

[0066] In some embodiments, when the puncture is completed, the extension length of the imaging illumination system and the puncture needle tube can be changed at the same time, so that the extension length of the imaging illumination system and the puncture needle tube are both less than the length of the lumen, so that the distal end of the lumen is exposed outside. The bending of the turning part of the lumen is controlled by the composite turning control device, and then the adhesion of the adhesion tissue and the spinal nerve is treated using the turning part of the lumen to complete the stripping. Since the length of the lumen is greater than the extension length of the imaging illumination system, the extension length of the imaging illumination system can be greater than the extension length of the puncture needle tube, and the lumen can be made of a material with high transparency, the observation of the lesion and the stripping operation can be completed by the imaging illumination optical fiber.

[0067] In some embodiments, when the length of the lumen is greater than the extension length of the imaging illumination system, the lumen is bent to the target position, and the switch of the protrusion can be further controlled so that the protrusion extends out of the slot 1059 and is retracted, and the stripping of the adhesion of the adhesion tissue and the spinal nerve is completed under the observation of the imaging illumination system. The target position can refer to the lumen bending into the adhesion between the nucleus pulposus and the spinal nerve.

[0068] At the same time, during the puncture and / or other operations, a drug and / or cleaning liquid can be injected through the injection port, and the drug and / or cleaning liquid can be injected from the injection port, enter the tissue through the injection cavity, ensure the clear vision of the imaging illumination system during the operation, and can also implement treatment.

[0069] In some embodiments, when the lumen can be used for stripping, an additional instrument channel can not be needed, only the injection port is needed, the diameter of the puncture needle is relatively reduced, and the integration is improved.

[0070] Figure 9It is a second exemplary structure diagram of the straight-viewing tissue release device according to the utility model. The following only describes the different places from the first exemplary structure 100, and the same parts are not described in detail, please refer to example one.

[0071] The difference between the first exemplary structure 100 is that the operation hole 2014 of the operation handle 2010 is arranged in the second exemplary structure 200.

[0072] In some cases, the adhesion area of the adhesion tissue and the spinal nerve is large, and the adhesion condition is serious, so that the turning part cannot complete the separation of the adhesion tissue and the spinal nerve, and other instruments need to be added to separate the adhesion tissue and the spinal nerve.

[0073] In some embodiments, as shown in Figure 9 The operation handle 2010 can include a composite turning control device 2011, a needle tube moving device 2012, and an operation hole 2014. The operation hole 2014 can be used for at least one of injecting liquid medicine, injecting cleaning liquid, and placing instruments. In some embodiments, the position of the operation hole 2014 can be the same as the liquid injection port position in the first exemplary structure. In some embodiments, the position of the operation hole 2014 can be located on the connecting structure. The operation hole can be connected with the liquid injection cavity or the lumen. The detailed content of the liquid injection cavity can be referred to the description of other contents of the specification. In some embodiments, as shown in Figure 9 The entering direction of the operation hole 2014 can be arranged at an acute angle with the axial direction of the operation handle 2010. In some embodiments, the entering direction of the operation hole 2014 can be arranged at an angle less than 60 degrees with the axial direction of the operation handle. In some embodiments, the angle between the entering direction of the operation hole 2014 and the axial direction of the operation handle is 25-60°. Because the rigidity of some instruments is large, when the operation hole 2014 and the puncture needle tube 1011 are arranged at an acute angle, it is convenient for the instruments to enter and exit the puncture assembly 1010 through the operation hole 2014. The operation hole is connected with the liquid injection cavity of the puncture needle tube 1011. In some embodiments, the liquid medicine, the cleaning liquid and / or the instruments can directly enter the liquid injection cavity of the puncture needle tube 1011 through the operation hole 2014.

[0074] The instrument may include at least one of the following manipulation instruments: a J-wire and a releasing forceps, for separating adherent tissues and spinal nerves. In some embodiments, the instrument may enter the puncture assembly through an operating port. In some embodiments, the instrument may enter the cavity and / or lumen of the puncture needle tube through the operating port. For example, if the operating port 2014 is connected to the lumen, the instrument may enter the first channel or other channels through the operating port. If the operating port 2014 is connected to the injection chamber within the puncture needle tube, the instrument may enter the cavity of the puncture needle tube through the operating port. The use of releasing forceps in this specification is merely illustrative and not intended to be limiting. For detailed information on releasing forceps, please refer to the relevant content of the third exemplary structure in this specification.

[0075] The imaging illumination fiber is sequentially inserted into the cavity or first channel of the puncture needle via the imaging illumination adapter and the operating handle. During visual puncture, the extension length of the puncture needle is greater than that of the imaging illumination system. With the assistance of the imaging illumination system, the needle tip of the puncture needle first contacts the skin, passes through the tissue, and reaches the lesion.

[0076] Upon completion of the puncture, the relative positions of the puncture needle and the imaging illumination system are adjusted so that the turning portion of the lumen extends from the distal end of the puncture needle. In some embodiments, after the imaging illumination fiber extends from the distal end of the puncture needle, the bending of the imaging illumination system is controlled by a composite turning control device. Figure 5 As shown, the bending angle of the steering unit is controlled by moving the compound steering control device, thereby controlling the bending of the imaging illumination system to complete the observation of the lesion and the operation site. Simultaneously, during puncture and / or other procedures, medication and / or cleaning solution can be injected through the injection port. The medication and / or cleaning solution can be injected through the injection port, pass through the injection chamber, and enter the tissue, ensuring a clear field of vision for the imaging illumination system during the operation and enabling treatment.

[0077] Unlike 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 of the puncture needle tube 1011 (the space inside the puncture needle tube wall and / or outside the lumen) through the operation hole for treating the adhesion tissue and the adhesion of the spinal nerve. In some embodiments, the instrument can also enter the first channel and / or other channels of the lumen through the operation hole, and extend out of the distal end of the first channel and / or other channels, and the imaging illumination fiber also enters the lumen and extends out of 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 they can be located in the first channel and other channels of the lumen respectively. The bending angle of the steering part is controlled by the compound steering control device, so that the imaging illumination fiber and / or the instrument in the lumen are bent. In some embodiments, due to the imaging illumination fiber located in the lumen, the stripping operation can be performed in cooperation with the instrument located in the lumen or outside the lumen. In some embodiments, the stripping operation can be performed by the steering part and / or the instrument, mainly for separating the adhesion of the adhesion tissue and the spinal nerve. For example, when the imaging illumination fiber is located in the lumen, and at the same time, the instrument enters the injection cavity of the puncture needle tube 1011 (the space inside the puncture needle tube wall and / or outside the lumen), the adhesion of the adhesion tissue and the spinal nerve can be separated by the bending of the imaging illumination fiber and the cooperation of the instrument outside the lumen. Other similar details about the use method of the second exemplary structure can be referred to the use method of the first exemplary structure.

[0078] Figure 10 is a third exemplary structure of the direct-viewing tissue release device according to the present application. Only the differences from the first exemplary structure and the second exemplary structure will be described below, and the same parts will not be described in detail, please refer to the related description 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 between the third exemplary structure 300 is the arrangement of the connecting structure.

[0079] As shown in Figure 10 , the direct-viewing tissue release device 300 includes a puncture assembly 1010, an operation handle 2010, and an imaging illumination system 3010.

[0080] The puncture assembly 1010 includes a puncture needle tube 1011 and a developing part 1012. The details of the puncture assembly can be referred to the description of the first exemplary structure and / or the second exemplary structure.

[0081] In some embodiments, the operation handle 2010 can be designed to be separable from the connecting structure, as shown in Figure 10The third exemplary structure 300 is shown in FIG. 11. In the third exemplary structure 300, the connecting structure can be Y-shaped, including three ports, the distal end of the connecting structure being the first port, in communication with the puncture assembly 1010. The proximal end of the connecting structure includes the second port and the third port. The second port is provided with the imaging illumination system locking device 2015, and the second port and the first port are parallel to the axis of the puncture needle tube. The image illumination fiber sequentially passes through the imaging illumination conversion device 3011, the inner cavity of the operating handle, the imaging illumination system locking device 2015 (the second port), the first port, and enters the puncture needle tube 1011 of the puncture assembly 1010. The third port can be used as the operating hole 2014. The entering direction of the operating hole 2014 can be arranged at an angle with the line connecting the second port and the first port, so that the liquid medicine, cleaning liquid and / or instrument can pass through the operating hole 2014 and the first port and directly enter the puncture needle tube of the puncture assembly 1010. For more details about the operating hole 2014, please refer to the related content of the second exemplary structure 200.

[0082] In Figure 10 and Figure 11 In the third exemplary structure 300 shown in FIG. 11, the operating handle can include the composite steering control device 2011 and the needle tube moving device 2012. The cavity of the puncture needle tube can be provided with a lumen along the axis. The lumen can include a first channel and a second channel. The image illumination fiber can enter the first channel through the second port. The instrument can enter the first channel through the operating hole. The composite steering control device can control the bending of the lumen. The needle tube moving device can control the extension length of the puncture needle tube. For more details, please refer to the related content of the second exemplary structure. At this time, the liquid medicine and the cleaning liquid can enter the first channel through the operating hole.

[0083] In some embodiments, the imaging illumination system locking device 2015 can be used to fix the position of the imaging illumination system in the puncture assembly and the operating handle. During the visual puncture, the extension length of the image illumination fiber is less than that of the puncture needle tube. The position of the image illumination fiber is locked by the imaging illumination system locking device 2015. Under the assistance of the imaging illumination system, the needle tip of the puncture needle tube first contacts the skin, passes through the tissue, and reaches the lesion. When the puncture is completed, the imaging illumination system locking device 2015 is loosened, the relative position between the distal end of the image illumination fiber and the needle tip of the puncture needle tube is adjusted, the extension length of the puncture needle tube is shortened by the needle tube moving device, and the bending part of the image illumination fiber and / or the lumen is exposed from the distal end of the puncture needle tube. At this time, the position of the image illumination fiber is locked by the imaging illumination system locking device 2015, and the subsequent operation is performed.

[0084] In some embodiments, at least one gear of the imaging illumination system locking device can be set. The at least one gear of the imaging illumination system locking device corresponds to at least one extension length range of the imaging illumination system. By controlling the extension length of the imaging illumination system, basic operations can be achieved in poor visibility.

[0085] The imaging illumination system 3010 includes an image illumination adapter 3011 and an image illumination transmission cable 3012.

[0086] The image illumination adapter 3011 can be used to convert and output image signals and illumination light sources. In some embodiments, the image illumination adapter 3011 can include an image interface 3013 and an illumination interface 3014.

[0087] In some embodiments, the instrument can include a release forceps. The following describes the release forceps as an example of the instrument, but is not limited thereto. As shown in Figure 11 The release forceps 5010 can include a release operation part 5011 and a release forceps part 5012. The release forceps 5010 is inserted through the operation hole 2014 of the operation handle 2010 and extends from the distal end of the puncture needle tube 1011 for handling adhesion tissue and adhesion of spinal nerves and other operations.

[0088] Figure 11 is an exemplary structure diagram of the release forceps according to the present application. In combination with Figure 10 , Figure 11 , by pushing and pulling the release operation part 5011, the release forceps part 5012 at the distal end of the release forceps extends or retracts into the lumen, and then the adhesion tissue is clamped or fixed by opening and closing. Figure 12 is a partial enlarged view of the distal end of the release forceps according to the present application. As shown in Figure 12 The lumen can 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 can be used to extend into the imaging illumination optical fiber, and the other is used to pass into the instrument, preventing the mutual influence of the instrument and the imaging illumination optical fiber, and the distal end of the second channel includes a turning part closed to the tissue. As shown in Figure 12 One of the first channel and the other channel of the lumen can be used to pass into the imaging illumination optical fiber, and the other is used to pass into the instrument. The release forceps can enter one of the first channel and the other channel through the operation hole, and the imaging illumination optical fiber can enter the other channel through the second port. In some embodiments, when the composite turning control device controls the bending of the second channel of the lumen, the release forceps and / or the imaging illumination optical fiber can be bent.

[0089] In some embodiments, when the releasing forceps enter the lumen through the operation hole, the extension length of the imaging illumination system is reduced so that the releasing forceps can be operated in the field of view of the imaging illumination system.

[0090] The imaging illumination system enters the cavity or the first channel of the puncture needle tube through the imaging illumination adapter, the second port and the first port of the operation handle in sequence. In the visible puncture, the extension length of the puncture needle tube is greater than that of the imaging illumination system, and under 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. When the puncture is completed, the relative position between the puncture needle tube and the imaging illumination system is adjusted by the needle tube moving device so that the turning part of the lumen extends from the distal end of the puncture needle tube, and the bending angle of the turning part is controlled by the composite turning control device so that the imaging illumination system is bent to complete the observation of the lesion and the operation site. At the same time, during the puncture and / or other operations, the drug and / or cleaning liquid can be injected through the injection port, and the drug and / or cleaning liquid can be injected from the injection port, enter the tissue through the injection cavity, ensure the clarity of the field of view of the imaging illumination system during the operation, and can also implement treatment.

[0091] Unlike the use of the second exemplary structure 200, in the third exemplary structure 300, the connecting structure is connected with the operation handle in a split manner. In some embodiments, other instruments can be added through the operation hole. In some embodiments, after the puncture is completed, the instruments can enter the injection cavity of the puncture needle tube through the operation hole, the first port in sequence, and extend from the distal end of the puncture needle tube for treating the adhesion between the adhesion tissue and the spinal nerve. In some embodiments, the instruments can enter the first channel of the lumen through the operation hole and the first port, and extend from the distal end of the first channel, at this time, the bending angle of the turning part is controlled by the composite turning control device to drive the imaging illumination fiber and the instruments in the first channel to bend. In some embodiments, the adhesion between the adhesion tissue and the spinal nerve can be separated by the turning part and / or other instruments. For details of the turning part and the composite turning control device, please refer to the related contents of the second exemplary structure.

[0092] In some embodiments, when the imaging illumination fiber enters the first channel and the instruments enter the cavity of the puncture needle tube other than the first channel, the composite turning control device can only control the turning of the imaging illumination fiber and cannot control the turning of the instruments, at this time, by controlling the turning of the imaging illumination fiber and cooperating with the instruments, the stripping operation can be more flexible, and because the instruments no longer occupy the space in the first channel, the space between the wall of the puncture needle tube and the lumen can be enlarged to facilitate the aspiration of the nucleus pulposus and other tissues. For other similar details of the use method of the third exemplary structure, please refer to the use method of the first exemplary structure.

[0093] Having described the basic concepts, it is obvious that the above detailed disclosure is merely intended to be illustrative and not restrictive of the scope of the present specification. Various modifications, improvements, and alterations can be made to the present specification by those skilled in the art, even though they are not explicitly described herein. For example, in the third exemplary structure 300, the lumen can include two passages for the instrument and imaging illumination fiber, respectively, and the lumen no longer includes a turning portion, and the handle no longer includes a compound turning control. Such modifications, improvements, and alterations are contemplated by the present specification, and they are still within the spirit and scope of the exemplary embodiments of the present specification.

[0094] Also, the present specification uses particular terminology to describe embodiments of the present specification. As used herein, the terminology "one embodiment," "an embodiment," and / or "some embodiments” means, and refers to at least one embodiment of the present specification. Accordingly, a particular feature, structure, or characteristic described in one or more embodiments is not to be construed as being straitly applicable to other embodiments. For example, some embodiments can not include one or more particular features, structures, or characteristics described in one or more other embodiments, and each and every combination of features, structures, or characteristics described in the present specification is envisioned whether or not such specific combination is

[0095] Further, the order in which the processor elements are listed in the above disclosure is not intended to be construed as a limitation, unless the claim language specifies otherwise. Nor is the use of numbering intended to imply a particular order of elements, unless the claim language specifies otherwise. Numerous modifications, adaptations, and alterations to the methods and materials described herein will be apparent to those skilled in the art. For example, although the above disclosure describes the described system as being implemented by hardware devices, the described system can also be implemented by software solutions, such as installing the described system on an existing server or mobile device.

[0096] Similarly, it is noted that the various illustrative blocks described herein can be implemented using electronic hardware, computer software, or any combination thereof. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, and steps have been described above generally in terms of their functionality, rather than their specific arrangement of hardware or software. Moreover, where the claims recite a means-plus-function claim element, such element is intended to cover any

[0097] In some embodiments, numbers that describe dimensions, quantities of ingredients, etc. are used. It should be understood that the numbers used in this context are intended to serve merely as examples. In some examples, the numbers are modified by a term selected from the group consisting of "about", "approximately", and "substantially". Unless otherwise stated, "about", "approximately", or "substantially" indicate that the stated numerical value allows for a variation of ±20%. Accordingly, numerical parameters in the application and claims are approximations. Although the numerical parameters are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The application is not limited to the specific numerical values set forth in the examples.

[0098] Each patent, patent application, publication, and other material cited in this specification is hereby incorporated by reference in its entirety for the purpose of describing and disclosing, by reference, the chemicals, instruments, articles, or processes described in such patent, patent application, publication, and other material as of the filing date of this patent application. However, the citation of a patent, patent application, publication, or other material shall not be construed as an admission that any of the material described in such citation is prior art with respect to this patent application. To the extent that any meaning or definition of a term in this specification conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this specification shall be

[0099] Finally, it should be understood that the embodiments described herein are merely exemplary of the application. Other variations of the embodiments described herein can also be possible. Accordingly, modifications and variations of the described embodiments are considered to be within the scope of the present application. Accordingly, while the present application is susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in order to elucidate the principles of the application. The application is therefore not to be limited to the particular examples disclosed in this application.

Claims

1. A direct visualization tissue release device, comprising: The application relates to a puncture assembly, an operating handle, an imaging illumination system and an instrument. The puncture assembly comprises a puncture needle tube, the inside of the puncture needle tube comprises a cavity, the cavity is open to tissue, and the distal end of the puncture needle tube is provided with a 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 adapter and an imaging illumination optical fiber, the distal end of the imaging illumination system can be bent and steered, the imaging illumination 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 for adjusting 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 for controlling the steering of the imaging illumination system.

2. The direct view tissue release device of claim 1, wherein, The operating handle comprises an operating hole used for at least one of injecting a medicinal liquid, injecting a cleaning liquid and placing an instrument.

3. The direct view tissue release device of claim 2, wherein, The composite steering control device comprises an elongated part, a circular shaft part and a traction steel wire, the circular shaft part is connected with the imaging illumination system through the traction steel wire, the elongated part drives the circular shaft part to rotate by being pulled, and the traction steel wire is pulled to make the imaging illumination optical fiber in the imaging illumination system bend and steer.

4. The direct view tissue release device of claim 1, wherein, The needle tube moving device changes the extension 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 direct view tissue release device of claim 1, wherein, The operating handle is provided with an imaging illumination system locking device used for fixing the position of the imaging illumination system in the puncture assembly and the operating handle.

6. The direct view tissue release device of claim 3, wherein, A lumen is arranged in the cavity of the puncture needle tube in the axial direction, and the distal end of the lumen comprises a steering part.

7. The direct view tissue release device of claim 6, wherein, The lumen is divided into a first channel and a second channel, the distal end of the second channel is provided with a steering part, the steering part is connected with the composite steering control device, and the composite steering control device controls the steering part to bend and steer through the traction steel wire.

8. The direct view tissue release device of claim 7, wherein, The instrument enters the cavity of the puncture needle tube and / or the first channel of the lumen through the operating hole.

9. The direct view tissue release device of claim 6, wherein, The instrument comprises at least one of a J-shaped guide wire and a releasing forceps, the instrument enters the puncture assembly through the operating hole, and the steering part and / or the instrument perform a stripping operation.

10. The direct view tissue release device of claim 6, wherein, A reflecting area is arranged on the outer periphery of the distal end of the steering part or the imaging illumination optical fiber.

Images