Flexible lens assembly and flexible lens sheath

Abstract

The embodiment of the invention provides a flexible lens assembly and a flexible lens sheath. The flexible lens assembly is detachably connected with the sheath shell; a connecting cap is arranged at the far end of the insertion tube. The flexible lens assembly comprises a signal transmission piece, a lens module and an auxiliary supporting piece; the signal transmission piece comprises a signal line; when the flexible lens assembly is connected with the sheath shell, the signal line is inserted into the insertion tube which is used for being inserted into a human body. Wherein the auxiliary supporting piece comprises a near-end magnetic piece and a far-end magnetic piece, the near-end magnetic piece applies magnetic force for driving the far-end magnetic piece to move towards the far end to the far-end magnetic piece, one end of the signal line is directly or indirectly connected to the far-end magnetic piece, the other end of the signal line is fixedly connected with the lens module, and the magnetic force pushes the lens module to abut against the connecting cap. The flexible endoscope sheath comprises a sheath shell; an insertion tube connected to the sheath shell; the signal output module is arranged on the sheath shell and is used for outputting an image signal; and a flexible lens assembly.

Description

TECHNICAL FIELD

[0001] The present specification relates to the field of medical devices, in particular to a soft endoscope assembly and a soft endoscope sheath. BACKGROUND

[0002] Endoscopes and related surgical instruments are widely used in the field of medicine for endoscopic examination and surgical assistance. According to different use scenarios, they can be divided into soft endoscopes and rigid endoscopes. A soft endoscope is a medical instrument made of soft and flexible material, which can be inserted into the body cavity such as the digestive tract, respiratory tract, urinary tract, etc. by bending and adjusting the direction to achieve the purpose of observation, diagnosis or treatment.

[0003] The soft endoscope (soft endoscope sheath) needs to be inserted into the patient's body through the insertion tube during use, and the endoscope lens module inside the insertion tube is used for endoscopic examination. During the insertion of the insertion tube, it will directly contact the tissues in the patient's body. In order to avoid cross infection, the existing soft endoscope is usually used as a disposable product, and after use, it is discarded as a whole, which causes waste of resources and increase of medical costs.

[0004] It is desirable to provide a soft endoscope assembly with a reusable soft endoscope sheath to solve the problem of cross infection and reduce the use cost. SUMMARY

[0005] One or more embodiments of the present specification provide a soft endoscope assembly, which is detachably connected with a sheath shell; a distal end of an insertion tube is provided with a connecting cap.

[0006] The soft endoscope assembly includes a signal transmission member, a lens module, a signal line and an auxiliary support member; when the soft endoscope assembly is connected with the sheath shell, the signal line is inserted into the insertion tube, and the insertion tube is used for inserting into the human body; The auxiliary support member includes a proximal magnetic member and a distal magnetic member, the proximal magnetic member applies a magnetic force to the distal magnetic member to drive the distal magnetic member to move to the distal end, one end of the signal line is directly or indirectly connected to the distal magnetic member, the other end of the signal line is fixedly connected with the lens module, and the magnetic force pushes the lens module to abut against the connecting cap.

[0007] In some embodiments, the soft endoscope assembly further includes an insertion lens housing having a channel accommodating the proximal magnetic member and the distal magnetic member and allowing the distal magnetic member to slide, and the distal magnetic member can slide along the channel.

[0008] In some embodiments, the proximal magnetic member comprises a first proximal magnetic member and a second proximal magnetic member, the first proximal magnetic member is fixedly connected with the insertion mirror shell, the first proximal magnetic member applies a first magnetic repulsion force to the second proximal magnetic member to make the second proximal magnetic member slidingly connected in the channel, and the second proximal magnetic member applies a second magnetic repulsion force to the distal magnetic member.

[0009] In some embodiments, the first proximal magnetic member, the second proximal magnetic member and the distal magnetic member are all magnets, and the magnetic poles are arranged as N-S-S-N-N-S or S-N-N-S-N-S.

[0010] In some embodiments, the proximal magnetic member and / or the distal magnetic member is an electromagnet, and the soft mirror assembly further comprises a processor configured to control the current of a coil on the electromagnet to control the first magnetic repulsion force and / or the second magnetic repulsion force.

[0011] In some embodiments, the auxiliary support member comprises a radial support member, the radial support member is sleeved on the signal line, one end of the radial support member is movably sealed with the insertion mirror fixed seat, and the other end is fixedly connected with the lens module to provide radial support and flexible following.

[0012] In some embodiments, the soft mirror assembly further comprises an insertion mirror outer tube, the insertion mirror outer tube is sleeved outside the radial support member.

[0013] In some embodiments, the soft mirror assembly further comprises a pull ring and a spring, the spring is sleeved outside the pull ring between the insertion mirror fixed seat and the insertion mirror shell, the pull ring is movably connected with the insertion mirror fixed seat, and when the sealing cover of the sealing member of the soft mirror sheath is closed, the sealing cover presses the pull ring to drive the spring to press the insertion mirror fixed seat.

[0014] In some embodiments, the signal transmission member further comprises a first connector, the sheath shell is further provided with a second connector, the signal line is connected with the first connector, the second connector is communicatively connected with a signal output module, and the first connector and the second connector are connected when the soft mirror assembly is connected with the sheath shell.

[0015] One or more embodiments of the present specification provide a soft mirror sheath comprising: a sheath shell; an insertion tube connected to the sheath shell; a signal output module arranged on the sheath shell and used for outputting an image signal; and a soft mirror assembly, which is detachably connected to the sheath shell, a lens module of the soft mirror assembly is inserted into the insertion tube, a signal transmission member of the soft mirror assembly is connected to the signal output module, and the lens module and the signal transmission member can be separated from the insertion tube and the signal output module, respectively, with the detachment of the soft mirror assembly.

[0016] In some embodiments, a seal is arranged on the sheath shell, the seal being used to close the cavity accommodating the soft scope assembly; the seal comprises a sealing cover, a sealing shell and a sealing ring; the soft scope assembly is detachably connected with the sealing shell.

[0017] In some embodiments, the soft scope sheath further comprises a suction port, a suction pipeline and a tee pipe; the suction port is connected to the suction pipeline, and is used to suck out in-vivo tissue fragments or liquid; a main pipe end of the tee pipe is in communication with an instrument channel pipe, a distal end of the instrument channel pipe being located in the insertion pipe; a branch pipe end of the tee pipe is in communication with the suction pipeline.

[0018] In some embodiments, the soft scope sheath further comprises a tee pipe; the tee pipe is in communication with an instrument channel pipe, a distal end of the instrument channel pipe being located in the insertion pipe.

[0019] In some embodiments, the insertion pipe comprises a supply plug, a pipe body and the connecting cap; the supply plug is arranged with a fitting port, and is fixed to the sheath shell; the connecting cap is connected with a distal end of the pipe body; the lens module is inserted into the connecting cap via the fitting port, and abuts against the connecting cap. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present specification will be further illustrated in the manner of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same numerals represent the same structures, wherein: Figure 1 is an exemplary structural diagram of a soft scope sheath according to some embodiments of the present specification; Figure 2 is an exemplary exploded view of a soft scope assembly according to some embodiments of the present specification; Figure 3 is an exemplary exploded view of a soft scope assembly according to some embodiments of the present specification; Figure 4 is an exemplary sectional structural diagram of a soft scope assembly according to some embodiments of the present specification; Figure 5 is an exemplary structural diagram of a soft scope assembly according to some embodiments of the present specification; Figure 6 is an exemplary schematic diagram of a magnetic block fixing seat according to some embodiments of the present specification; Figure 7 is an exemplary structural diagram of a soft scope assembly after installation according to some embodiments of the present specification; Figure 8A and Figure 8Bis an exemplary structural diagram of a seal shown according to some embodiments of the present specification; Figure 9 is an exemplary structural diagram of a soft scope sheath shown according to some embodiments of the present specification; Figure 10 is an exemplary structural diagram of another soft scope sheath shown according to some embodiments of the present specification; Figure 11 is an exemplary structural diagram of another soft scope sheath shown according to some embodiments of the present specification; Figure 12 is Figure 11 a sectional view; Figure 13 is an exemplary structural diagram of a plug shown according to some embodiments of the present specification; Figure 14 is an exemplary structural diagram of an insertion tube shown according to some embodiments of the present specification. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some examples or embodiments of the present specification, and for those skilled in the art, the present specification can also be applied to other similar scenarios without creative labor on the basis of these drawings. Unless it is clear from the language context or otherwise indicated, the same reference numbers in the drawings represent the same structures or operations.

[0022] It should be understood that the "system", "device", "unit" and / or "module" used herein is a method for distinguishing different components, elements, parts, sections or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0023] As shown in the specification and claims, unless the context clearly indicates otherwise, the words "one", "a", "an", and / or "the" do not mean to specify a single number, but also include a plurality. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements.

[0024] Flowcharts are used in the present specification to illustrate the operations performed by the system according to the embodiments of the present specification. It should be understood that the preceding or subsequent operations are not necessarily performed in sequence. On the contrary, each step can be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or one or more steps of the operation can be removed from these processes.

[0025] Figure 1 is an exemplary structural diagram of a soft mirror sheath according to some embodiments of the present specification; Figure 2 is an exemplary exploded view of a soft mirror assembly according to some embodiments of the present specification. Figure 3 is an exemplary exploded view of a soft mirror assembly according to some embodiments of the present specification. Figure 4 is an exemplary sectional structural diagram of a soft mirror assembly according to some embodiments of the present specification; Figure 5 is an exemplary structural diagram of a soft mirror assembly according to some embodiments of the present specification.

[0026] In some embodiments, as shown in Figure 1 , the soft mirror assembly 10 is detachably connected with the sheath shell 30 of the soft mirror sheath 100. The distal end of the insertion tube 40 of the soft mirror sheath 100 is provided with a connecting cap 43 (see Figure 1 and Figure 10 ). The soft mirror assembly 10 comprises a signal transmission member 15, a lens module 17, a signal line 151 and an auxiliary support member 13. When the soft mirror assembly 10 is connected with the sheath shell 30, the signal line 151 is inserted into the insertion tube 40. The insertion tube 40 is used for insertion into the human body.

[0027] The "proximal end" and "distal end" referred to in some embodiments of the present specification can be referred to the operator using the soft mirror sheath device; the end closer to the operator is the "proximal end", and the end away from the operator is the "distal end". The "proximal end" and "distal end" can represent the end point, end face, end portion, portion close to the end portion and having a certain length of a component of the soft mirror sheath device or the soft mirror assembly. For example, the end of the insertion tube 40 extending into the human body is the distal end of the insertion tube 40; the other end of the insertion tube 40 opposite to the distal end is the proximal end of the insertion tube 40.

[0028] The soft mirror assembly 10 is the core component of the soft mirror sheath 100, which converts the optical information invisible in the body into visual digital images, and outputs the digital image signals to the outside.

[0029] The auxiliary support member 13, the signal line 151 and the lens module 17 are sequentially located from the proximal end to the distal end of the soft mirror assembly 10. The signal transmission member 15 is used for transmitting the signal acquired by the lens module 17 to the host. The lens module 17 is used for acquiring images. The distal end of the signal line 151 is in communication connection with the lens module 17. The proximal end of the signal line 151 can be in communication connection with the signal transmission member 15, and the image signal or the photoelectric signal of the lens module is transmitted to the signal transmission member 15.

[0030] The auxiliary support member 13 is used for ensuring that the lens module 17 abuts against the light-transmitting piece 432 of the connecting cap 43 without any gap, and the force applied will not push the light-transmitting piece 432 through. The front end of the connecting cap 43 is provided with the light-transmitting piece 432 (also referred to as lens glass or cavity lens).

[0031] The auxiliary support 13 is used to directly or indirectly support the radial support 134 wrapping the signal line 151 when the length of the radial support 134 is different, or when the length of the insertion tube and the signal line is mismatched due to different degrees of stretching in the curved state, so as to ensure that the lens module 17 abuts against the connecting cap 43.

[0032] When the soft lens assembly 10 is assembled, the distal lens module 17 needs to abut or adhere to the light transmission piece of the connecting cap of the insertion tube. Due to manufacturing errors, bending, etc., the length of the radial support 134 supporting the signal line 151 may vary. In addition, the insertion tube and the radial support 134 supporting the signal line 151 may also be mismatched in length due to different bending properties in the curved state. When the length of the radial support 134 is shorter than the matching length, the lens module 17 will be separated from the light transmission piece at the end of the insertion tube, affecting imaging; when the length of the radial support 134 is longer than the matching length, the light transmission piece of the connecting cap 43 at the end of the insertion tube may be damaged. Therefore, the auxiliary support 13 can avoid separation or damage of the lens caused by mismatching of the length of the insertion tube and the radial support 134, and ensure that the lens module 17 can always adhere to the light transmission piece at the end of the insertion tube during the operation of the soft lens sheath.

[0033] In some embodiments, the auxiliary support 13 includes a radial support 134; the radial support 134 is sleeved on the signal line 151, and one end of the radial support 134 is movably sealed with the insertion lens fixing seat 14, and the other end is fixedly connected with the lens module, for providing radial support and flexible following.

[0034] In some embodiments, the position of the radial support 134 inside the insertion lens fixing seat 14 is also provided with a movable sealing ring. For example, a silica gel sealing gasket with an inner diameter slightly larger than the outer diameter of the radial support 134. When the radial support 134 is passively compressed or elongated to adapt to the displacement of the lens module 17, the movable sealing ring can continuously maintain the sealing of the soft lens assembly.

[0035] The proximal end of the radial support 134 is movably sealed with the insertion lens fixing seat 14, and the distal end can be fixedly connected with the end face of the lens module 17. The radial support refers to that the radial support 134 can support the signal line 151 to be substantially straight without excessive bending. The flexible following refers to that the signal line 151 can bend following the bending of the insertion tube of the soft lens sheath. The signal line 151 can slide in the radial support 134 within a small range.

[0036] The radial support 134 can be a component with a smooth surface, a torsional strength greater than a strength threshold, and a bendable degree greater than a bend threshold. The strength threshold and the bendable degree can be pre-set by a technician. For example, the radial support 134 is a braided tube, a spring tube, or the like. The radial support 134 is made of a material with a small friction. For example, the radial support 134 is a braided tube made of stainless steel.

[0037] In some embodiments, when the proximal magnetic member 131 applies a magnetic force to push the distal magnetic member 132, thereby driving the lens module 17 to move distally and abut against the connecting cap, the radial support 134 is correspondingly passively compressed or elongated to adapt to the displacement of the lens module 17. To ensure that the lens module 17 can smoothly move under the magnetic repulsion, the elastic restoring force of the radial support 134 needs to be less than the magnetic repulsion.

[0038] When the lens module is inserted into the insertion tube of the soft scope sheath, the signal line 151 is usually a thin and soft wire, and it is difficult for the signal line 151 to be inserted into the insertion tube of the soft scope sheath without other components outside the signal line 151. The radial support 134 with a smooth surface can reduce the friction when the signal line 151 is inserted into the insertion tube of the soft scope sheath, facilitating installation. In addition, the signal line 151 can rotate when being inserted, causing the picture to rotate; the radial support 134 has a torsional strength greater than a strength threshold, which can reduce the torsion of the signal line 151 when being inserted. After the signal line 151 is inserted into the insertion tube of the soft scope sheath, it also needs to bend following the bending of the insertion tube, so the radial support 134 needs to be a component with a bendable degree greater than a bend threshold.

[0039] In some embodiments, the auxiliary support 13 includes a proximal magnetic member 131 and a distal magnetic member 132, the proximal magnetic member 131 applies a magnetic force to the distal magnetic member 132 to drive the distal magnetic member 132 to move distally, one end of the signal line 151 is directly or indirectly connected to the distal magnetic member 132, the other end of the signal line 151 is fixedly connected to the lens module 17, and the magnetic force pushes the lens module 17 to abut against the connecting cap.

[0040] The proximal magnetic member 131 and the distal magnetic member 132 can include a magnetic steel, an electromagnet, or the like. From the proximal end to the distal end, the magnetic pole directions of the proximal magnetic member 131 and the distal magnetic member 132 are opposite. For example, from the proximal end to the distal end, the magnetic pole of the proximal magnetic member 131 is N-S, and the magnetic pole of the distal magnetic member 132 is S-N, the S level of the proximal magnetic member 131 and the S level of the distal magnetic member 132 generate a magnetic repulsion of same-pole repulsion, thereby pushing the proximal magnetic member 131 and the distal magnetic member 132 to move away from each other; when the position of the proximal magnetic member 131 is fixed, the magnetic repulsion of same-pole repulsion pushes the distal magnetic member 132 to move distally.

[0041] The end of the signal line 151 is directly or indirectly connected to the distal magnetic member 132, which means that the end of the signal line 151 is directly or indirectly fixed to the distal magnetic member 132. The end of the signal line 151 can be directly connected to the distal magnetic member 132. For example, the end of the signal line 151 is fixedly connected to the distal magnetic member 132 by a wire clamp, glue, or the like. For another example, the distal magnetic member 132 is provided with a fixing structure, and the end of the signal line 151 is fixed to the fixing structure. It should be noted that the end of the signal line 151 fixed to the distal magnetic member 132 is also in communication connection with the signal transmission member 15, for example, the signal line 151 is electrically connected to the first joint 153 of the signal transmission member 15.

[0042] The end of the signal line 151 can be indirectly connected to the distal magnetic member 132. For example, as shown in FIG. 1, the distal magnetic member 132 is fixedly connected to the magnetic block fixing seat 133, and the magnetic block fixing seat 133 is fixedly connected to the signal line 151. Figures 2-5

[0043] In some embodiments, when the radial support member 134 is provided, the soft lens assembly 10 is connected to the sheath 30, and the radial support member 134 and the signal line 151 are inserted into the insertion tube 40. The auxiliary support member 13 includes the proximal magnetic member 131, the distal magnetic member 132, and the radial support member 134, the proximal magnetic member 131 applies a magnetic force to the distal magnetic member 132 to drive the distal magnetic member 132 to move distally, the proximal end of the signal line 151 is fixedly connected to the proximal end of the radial support member 134, one end of the signal line 151 and / or the radial support member 134 is directly or indirectly connected to the distal magnetic member 132, the other end of the signal line 151 and the radial support member 134 is fixedly connected to the lens module 17, and the magnetic force pushes the lens module 17 to abut against the connecting cap. The proximal end of the signal line 151 and the proximal end of the radial support member 134 can be fixedly connected by glue or the like; at least one of the signal line 151 or the radial support member 134 is directly or indirectly connected to the distal magnetic member 132, the magnetic force drives the distal magnetic member 132 to move distally, and the signal line 151 and the radial support member 134 are driven to move distally together, thereby pushing the lens module 17 to abut against the connecting cap. It can be understood that when the signal line 151 itself has a relatively hard material, the magnetic force can push the lens module 17 to abut against the connecting cap without relying on the radial support member 134; when the signal line 151 itself has a relatively soft material, the radial support member 134 drives the signal line 151 to move together, and the magnetic force pushes the lens module 17 to abut against the connecting cap.

[0044] By designing the soft lens assembly as a detachable unit, the soft lens assembly (including high-value components such as the lens module) can be integrally detached for subsequent disinfection and reuse after the soft lens sheath is used. This effectively reduces the use cost of the soft lens sheath and reduces the burden on patients.

[0045] ​The magnetic member is not easy to deform and demagnetize, and the circumferential surface of the magnetic member is easy to process smooth, which can reduce the friction when sliding and prolong the service life of the auxiliary support member. At the same time, the auxiliary support member can provide flexible or non-contact axial support, effectively avoiding the separation or damage of the lens caused by the length change of the signal line 151 and the radial support member 134.

[0046] In some embodiments, the soft lens assembly 10 further comprises an insertion lens housing 12. The insertion lens housing 12 has a channel 121 accommodating the proximal magnetic member 131 and the distal magnetic member 132 and allowing the distal magnetic member 132 to slide along the channel 121.

[0047] In some embodiments, as shown in Figure 4 The soft lens assembly 10 further comprises an insertion lens holder 14; the channel 121 allowing the distal magnetic member 132 to slide can also be arranged in the insertion lens holder 14. The insertion lens holder 14 is fixedly connected with the insertion lens housing 12. The proximal end of the auxiliary support member 13 and the signal transmission member 15 are located in the cavity formed by the insertion lens holder 14 and the insertion lens housing 12.

[0048] In some embodiments, the magnetic block holder 133 can also slide along the channel 121. Figure 6 is an exemplary schematic diagram of the magnetic block holder according to some embodiments of the present specification.

[0049] In some embodiments, the magnetic block holder 133 is provided with a sliding groove 1331, and the inner wall of the insertion lens holder 14 is provided with an axially extending protrusion (not labeled in the figure). The magnetic block holder 133 is slidingly connected to the protrusion of the insertion lens holder 14 through the sliding groove 1331. Since the distal magnetic member 132 and the magnetic block holder 133 are fixedly connected, the cooperation of the protrusion of the insertion lens holder 14 and the sliding groove 1331 can limit the rotation direction of the distal magnetic member 132, thereby avoiding the rotation of the distal magnetic member 132 and ensuring the stable connection of the soft lens assembly.

[0050] In some embodiments, the distal magnetic member 132 is cylindrical and fixedly connected with the end surface of the magnetic block holder 133.

[0051] In some embodiments, as shown in Figure 6 The magnetic block holder 133 is provided with a limiting head 1332 near one end of the distal magnetic member 132, and the distal magnetic member 132 is cylindrical and sleeved on the limiting head 1332 and fixedly connected with the limiting head 1332. The limiting head 1332 can provide radial limitation for the distal magnetic member 132, reducing the shaking of the distal magnetic member 132 in the channel 121.

[0052] In some embodiments, the proximal magnetic element 131 includes a first proximal magnetic element 1311 and a second proximal magnetic element 1312. The first proximal magnetic element 1311 is fixedly connected to the insert lens housing 12. The first proximal magnetic element 1311 applies a first magnetic repulsion force to the second proximal magnetic element 1312 to make the second proximal magnetic element 1312 slide connected in the channel. The second proximal magnetic element 1312 applies a second magnetic repulsion force to the distal magnetic element 132.

[0053] In some embodiments, the first proximal magnetic element 1311, the second proximal magnetic element 1312, and the distal magnetic element 132 are all magnets (also called magnetic steels), and their magnetic poles are arranged in NSSNNS or SNNSNS, thereby forming a first magnetic repulsion and a second magnetic repulsion.

[0054] In some embodiments, the number of near-end magnetic elements 131 can be greater than or equal to 3, and the magnetic poles of adjacent near-end magnetic elements 131 are arranged in opposite directions. For example, the number of near-end magnetic elements 131 is 3 or 4. A person skilled in the art can set the number of near-end magnetic elements 131 according to the required magnetic repulsion force.

[0055] In some embodiments, the proximal magnetic element 131 and / or the distal magnetic element 132 are electromagnets; the soft lens assembly also includes a processor configured to control the current in the coil on the electromagnet, thereby controlling the first magnetic repulsion force and / or the second magnetic repulsion force.

[0056] The processor can communicate with multiple components of the soft mirror sheath. The processor may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), etc. For example, the processor can communicate with signal output modules, etc. The processor can be located on a host computer that communicates with the soft mirror sheath.

[0057] In some embodiments, the processor is further configured to: upon receiving an installation signal, determine the current of the electromagnet based on a first magnetic repulsion force and / or a second magnetic repulsion force using a first preset table. The installation signal indicates that the flexible lens assembly has been successfully installed. The first preset table includes the current corresponding to the first and / or second magnetic repulsion forces. The first preset table can be set by a technician based on prior experience. For example, different magnetic repulsion forces are set for different sizes of flexible lens sheaths. The processor dynamically changes the magnetic field strength of the electromagnet by adjusting the current flowing through the electromagnet coil, thereby adjusting the magnetic repulsion force so that the lens module abuts against the connector cap.

[0058] In some embodiments, the processor is further configured to reduce or turn off the current to the electromagnet when a disassembly signal is received.

[0059] The disassembly signal refers to a signal for disassembling the soft mirror assembly. For example, a disassembly button is arranged on the host or the soft mirror sheath, and when an operator presses the disassembly button, a disassembly signal is sent to the processor.

[0060] By setting controllable on and off of the current of the electromagnet, the electromagnet is not powered during installation, the electromagnet loses magnetic force, which facilitates the installation of the soft mirror assembly; during disassembly, if the magnetic repulsion force is too large, it may push the lens module to continue moving closer to the connecting cap, thereby increasing the time for pulling out the soft mirror assembly; reducing or turning off the current of the electromagnet facilitates the disassembly of the soft mirror assembly. The installation and disassembly process of the soft mirror assembly can be simplified, and the user experience can be improved.

[0061] In some embodiments, the soft mirror assembly further comprises a distance sensor configured to obtain distance data between the lens module 17 and the connecting cap 43; the processor is further configured to control the first magnetic repulsion force and / or the second magnetic repulsion force based on the distance data.

[0062] The distance sensor can be arranged on the outer ring of the lens module 17. The distance sensor can be a miniature optical time-of-flight sensor.

[0063] In some embodiments, the processor can control the first magnetic repulsion force and / or the second magnetic repulsion force based on the distance data through a second preset table. The second preset table includes the first magnetic repulsion force and / or the second magnetic repulsion force corresponding to the distance data and the current of the corresponding electromagnet. The second preset table can be set by technicians based on prior experience. For example, when the distance is greater than a distance threshold, the current of the electromagnet is increased, thereby increasing the magnetic repulsion force.

[0064] Determining the magnetic repulsion force based on the distance data can achieve intelligent and adaptive distance control and buffering, effectively avoiding problems such as damage to the lens module 17 and the connecting cap 43 due to collision or excessive extrusion, image quality degradation due to excessive distance, and improving the reliability and safety of the soft mirror sheath.

[0065] In some embodiments, the soft mirror assembly further comprises an insertion mirror outer tube 16, which is sleeved on the outside of the radial support 134. The insertion mirror outer tube 16 can provide peripheral protection for the soft mirror assembly by being sleeved on the outside of the radial support 134. One end of the insertion mirror outer tube 16 can be sealingly fixed to the insertion mirror fixed seat 14, and the other end of the insertion mirror outer tube 16 is spaced apart from the lens module 17. By sealingly fixing the insertion mirror outer tube 16 to the insertion mirror fixed seat 14, the insertion mirror fixed seat 14 can be enclosed while the radial support 134 is stable, thereby achieving the sealing of the hole. The end of the insertion mirror outer tube 16 close to the lens module 17 is spaced apart from the lens module 17, so it will not hinder the movement of the lens module 17.

[0066] In some embodiments, the insertion mirror outer tube 16 is arranged on the sheath shell 30 of the soft mirror sheath and fixedly connected with the sheath shell 30. That is, the soft mirror sheath comprises the insertion mirror outer tube 16. The insertion mirror outer tube 16 is sealingly fixed with the sealing shell 322 and extends into the module channel of the insertion tube. The distal end of the insertion mirror outer tube 16 is spaced apart from the lens module 17. The insertion mirror outer tube 16 arranged on the sheath shell 30 of the soft mirror sheath can guide the insertion of the lens module 17, thereby increasing the smoothness of the insertion.

[0067] In some embodiments, the soft mirror assembly 10 further comprises a pull ring 11 and a spring 18. The spring 18 is sleeved outside the pull ring 11 and located between the insertion mirror fixing seat 14 and the insertion mirror outer tube 16. The pull ring 11 is movably connected with the insertion mirror fixing seat 14. When the sealing cover 321 of the sealing member 32 of the soft mirror sheath is closed, the sealing cover 321 presses the pull ring 11 and drives the spring to press the insertion mirror fixing seat 14.

[0068] The pull ring 11 can slide through the insertion mirror outer shell 12 and the insertion mirror fixing seat 14. The insertion mirror outer shell 12 and the insertion mirror fixing seat 14 are also provided with a silica gel sealing ring at the position through which the pull ring 11 slides, so as to maintain the sealing of the inside of the soft mirror assembly when the pull ring 11 slides. A gasket (not shown in the figure) is arranged on the pull ring 11 and arranged inside the insertion mirror outer shell 12. The gasket is fixedly connected with the pull ring 11 (for example, a clamping groove is arranged on the pull ring and the gasket is clamped in the clamping groove).

[0069] When the sealing cover 321 is not closed, the distance from the pull ring 11 to the closed position of the sealing cover 321 is within the range of 0.5mm-2mm. When the sealing cover 321 is closed, the sealing cover 321 can press the pull ring 11 and further press the insertion mirror fixing seat 14 to continue moving to the distal end.

[0070] When the operator closes the sealing cover 321, the sealing cover 321 can press the pull ring 11 to further press the entire soft mirror assembly, thereby further fixing the position of the lens module and making the lens module more stable. In addition, the first joint 153 can be inserted into the position more accurately, thereby avoiding poor contact.

[0071] When the sealing cover 321 is opened and disassembled, the spring 18 is elongated and lifts the pull ring 11, so that the operator can pull the pull ring 11 to take out the signal line, the lens module and the like, thereby facilitating the disassembly of the entire soft mirror assembly.

[0072] The signal transmission member 15 is used to communicate the signal line 151 of the soft mirror assembly with the signal output module 50 after the soft mirror assembly is installed.

[0073] In some embodiments, the signal transmission member 15 further comprises a first joint 153, and the sheath shell 30 is further provided with a second joint 31 (see Figure 7); the signal line 151 is connected with the first connector 153, and the second connector 31 is in communication connection with the signal output module 50. When the soft lens assembly 10 is connected with the sheath 30, the first connector 153 and the second connector 31 are connected.

[0074] The first connector 153 can be electrically connected with the signal line 151 through a wire, a conductive sheet or a PCB board, or in a form of welding with the signal line 151. The first connector 153 can be in communication with the signal line 151. The second connector 31 can be electrically connected with the signal output module 50 through a wire, a conductive sheet or a PCB board, so as to be in communication connection. The second connector 31 can also be in communication connection with the signal output module 50 through a wireless signal.

[0075] The second connector 31 is provided with a plug hole 34, and the first connector 153 is inserted into the plug hole 34 to be connected with the second connector 31.

[0076] In some embodiments, the second connector 31 is electrically connected with the signal output module 50 in a form of an audio plug with four wires to supply power to the lens module. In some embodiments, the second connector 31 is electrically connected with the signal output module 50 in a form of a USB or Type-C to supply power to the coil of the electromagnet.

[0077] The second connector 31 can be a round locking plug, a board-to-board plug, a micro plug or a flexible cable plug, etc., which can be matched with the first connector 153.

[0078] It can be understood that the plug hole 34 can be arranged on the signal transmission member 15, and the signal output module 50 is provided with a corresponding plug structure. The plug hole 34 is matched with the plug of the signal output module 50 to realize the electrical connection between the signal transmission member 15 and the signal output module 50.

[0079] In some embodiments, the second connector 31 is fixed on the sheath 30. The second connector 31 is provided with a plug hole 34 and a sealing groove 35. The sealing groove 35 is located on the circumferential side of the plug hole 34. The circumferential side of the first connector 153 is provided with an insulating sealing member 152. After the first connector 153 is inserted into the plug hole 34, the insulating sealing member 152 is embedded into the sealing groove 35 to seal the plug hole 34.

[0080] The signal line 151 is connected with the signal output module 50. The signal output module 50 can be connected with a host computer to output the photoelectric signal of the signal line 151 to the host computer. The host computer can denoise, color correct and gamma adjust the signal to finally output real-time image data. Figure 10 As shown in FIG. 6, the signal output module 50 includes a signal output line 51 which can be connected with the host computer.

[0081] Some embodiments of the present specification also provide a soft lens sheath, as shown in FIG. 7. Figure 1As shown, the device includes a sheath 30, an insertion tube 40, a signal output module 50, and a flexible lens assembly 10. The insertion tube 40 is connected to the sheath 30; the signal output module 50 is mounted on the sheath 30 and is used to output image signals; the flexible lens assembly 10 is detachably connected to the sheath 30; the lens module 17 of the flexible lens assembly 10 is inserted into the insertion tube 40, and the signal transmission component 15 of the flexible lens assembly 10 is connected to the signal output module 50. The lens module 17 and the signal transmission component 15 can be detached from the insertion tube 40 and the signal output module 50, respectively, when the flexible lens assembly 10 is disassembled.

[0082] The flexible endoscope sheath, comprising an insertion tube 40, a signal output module 50, and a flexible endoscope assembly 10, allows for endoscopic examination of human tissues. During this process, the sheath is inserted into the tissue via the insertion tube 40. Once inserted, the flexible endoscope assembly 10 performs the endoscopic examination, and the electrical signal generated by the assembly is transmitted to the signal output module 50 via a signal transmission device 15. By incorporating the flexible endoscope assembly 10, the sheath can be detached after use, allowing the relatively expensive flexible endoscope assembly to be retained for future use without discarding the entire sheath. This effectively reduces the cost of using the endoscope sheath and alleviates the burden on patients.

[0083] Figure 7 This is an exemplary structural diagram of the soft lens assembly after installation, as shown in some embodiments of this specification; Figure 8A and Figure 8B This is an exemplary structural diagram of a seal according to some embodiments of this specification.

[0084] In some embodiments, such as Figures 7 to 8B As shown, a sealing element 32 is provided on the sheath 30, which is used to seal the cavity containing the flexible endoscope assembly 10; the sealing element 32 includes a sealing cap 321, a sealing shell 322, and a sealing ring 323. The flexible endoscope assembly 10 is detachably connected to the sealing shell 322.

[0085] The sealing shell 322 is provided with a slot 3221, and the sealing cover 321 is provided with a buckle 3211. After the buckle 3211 is engaged with the slot 3221, the cavity accommodating the flexible endoscope assembly 10 is sealed. The sealing ring 323 is disposed inside the sealing cover 321.

[0086] Seal 32 simplifies the electrical connection process between the flexible endoscope assembly and the flexible endoscope sheath, and ensures the reliability and safety of the connection through a sealing design, preventing liquid from entering the flexible endoscope assembly.

[0087] Figure 9 This is an exemplary structural diagram of a soft mirror sheath shown according to some embodiments of this specification. Figure 10 This is an exemplary structural diagram of another soft mirror sheath shown according to some embodiments of this specification.

[0088] In some embodiments, as shown in Figure 1 and Figure 9 The soft mirror sheath includes an aspiration port 61, an aspiration conduit 62, and a three-way tube 63. The aspiration port 61 is connected to the aspiration conduit 62 for aspirating tissue fragments or liquid in the body. The main tube end of the three-way tube 63 communicates with the instrument channel tube 81, and the distal end of the instrument channel tube 81 is located in the insertion tube 40. The branch tube end of the three-way tube 63 communicates with the aspiration conduit 62.

[0089] The aspiration port 61 can be arranged in various positions. For example, the aspiration port 61 can be arranged on the surface of the photographing button (as shown in Figure 1 For another example, the aspiration port 61 can be arranged on the side surface of the sheath shell (as shown in Figure 9 The other end of the main tube end of the three-way tube 63 can be used for the extension of the operation instrument (such as biopsy forceps), which facilitates the operation personnel to perform cell sampling and other operations.

[0090] The soft mirror sheath can further include an aspiration button 64 for controlling the aspiration of an aspiration assembly (not shown in the figure). The aspiration assembly can be arranged on the soft mirror sheath (for example, integrated into the soft mirror sheath) or outside the soft mirror sheath, and the aspiration assembly is connected to the aspiration port 61.

[0091] By connecting a negative pressure device, tissue fragments or liquid in the body can be aspirated through the instrument channel tube 81, the three-way tube 63, and the aspiration port 61. The integrated design of the instrument channel tube 81 and the three-way tube 63 is compact in structure and does not affect the normal operation of the soft mirror assembly 10. The soft mirror sheath has a high-efficiency aspiration function, which can timely remove tissue fragments, blood, or liquid in the body, provide a clear vision for the doctor, and improve the efficiency and safety of examination and treatment.

[0092] Figure 11 FIG. 4 is an exemplary structural diagram of another soft mirror sheath according to some embodiments of the present specification. Figure 12 FIG. 5 is a sectional view of Figure 11 .

[0093] In some embodiments, the soft mirror sheath includes a two-way tube 65. The two-way tube 65 communicates with the instrument channel tube 81, and the distal end of the instrument channel tube 81 is located in the insertion tube 40.

[0094] Different departments have different needs for drainage. Some need the soft mirror sheath to be provided with an aspiration port, and some do not need aspiration. After replacing the three-way tube 63 with the two-way tube 65, the aspiration function of the soft mirror sheath is cancelled, but other structures do not need to be changed. The soft mirror assembly can adapt to soft mirror sheaths with different functions.

[0095] In some embodiments, the soft mirror sheath is provided with a photographing button 66. The photographing button 66 is used to control the soft mirror assembly to shoot images and videos.

[0096] Figure 13is an exemplary structural diagram of a plug according to some embodiments of the present specification. Figure 14 is an exemplary structural diagram of an insertion tube according to some embodiments of the present specification.

[0097] In some embodiments, as shown in Figure 10 , the insertion tube 40 comprises a plug 41, a tube body 42 and a connecting cap 43. The plug 41 is provided with a fitting port 411 (see Figure 13 ) and is fixed to the sheath shell 30. The connecting cap 43 is connected to the distal end of the tube body 42. The lens module is inserted into the connecting cap 43 through the fitting port 411 and abuts against the connecting cap 43. The plug 41 can fix the tube body 42 to the sheath shell 30 and form an insertion port for the soft lens assembly at the sheath shell 30. The connecting cap 43 can seal the module channel at the distal end of the tube body 42 to prevent the body fluid from entering the module channel and contaminating the lens module.

[0098] In some embodiments, as shown in Figure 14 , the connecting cap 43 is provided with a light-transmitting sheet 432. When the soft lens assembly is inserted, the lens module 17 at the end thereof abuts against the light-transmitting sheet 432. The inner side of the connecting cap 43 is provided with a mounting groove, and the light-transmitting sheet 432 is mounted in the mounting groove and is in sealing connection with the mounting groove to realize the mounting of the light-transmitting sheet 432 on the inner side of the connecting cap 43, thereby avoiding the light-transmitting sheet 432 on the connecting cap 43 from being separated under the impact of the lens module 17. In other embodiments, the light-transmitting sheet 432 is arranged on the outer side of the connecting cap 43 and is fixed to the connecting cap 43 by a sealing glue or the like arranged therearound.

[0099] In some embodiments, the inner side of the tube body 42 is provided with a guide tube 421 (see Figure 10 ). One end of the guide tube 421 is connected to the plug 41, and the other end of the guide tube 421 extends from the module channel to the light-transmitting sheet 432. After the soft lens assembly is inserted into the plug 41, the soft lens assembly will finally abut against the light-transmitting sheet 432 through the guidance of the guide tube 421. It should be noted that the guiding function of the guide tube 421 can be replaced by the insertion outer lens tube 16. For more information about the insertion outer lens tube 16, please refer to the foregoing description.

[0100] In some embodiments, as shown in Figure 14 , the connecting cap 43 is provided with an illumination part 431, a light-transmitting sheet 432 and an instrument channel 433. The light-transmitting sheet 432 is in sealing connection with the module channel for inserting the lens module 17 to prevent liquid or air from entering the module channel. The light-transmitting sheet 432 is arranged on the inner side or the outer side of the connecting cap 43. For example, a glue body can be arranged at the position where the edge of the light-transmitting sheet 432 is connected to the connecting cap 43 to improve the stability of the installation of the light-transmitting sheet 432 and to achieve the sealing effect. The light-transmitting sheet 432 can be a transparent light-transmitting sheet, such as a transparent resin sheet or a silk-printed glass.

[0101] The soft mirror sheath further comprises a light source and a light guide. The light source can be a light emitting diode (LED), and the light guide guides the light emitted by the light source to the illumination part 431 to achieve light compensation and facilitate illumination of the part to be examined or treated. The light can pass through the light-transmitting sheet 432 to provide favorable conditions for image acquisition by the lens module and meet the brightness requirements of imaging.

[0102] In some embodiments, the light guide can be an optical fiber, and two light guide channels are provided on the inner side of the insertion tube, located on both sides of the module channel and close to the lens module.

[0103] During operation, the LED or external cold light source guides light into the body cavity through the light guide of the optical fiber, illuminates the lesion tissue, and then focuses the reflected light of the human body tissue to the sensor target surface through the lens of the lens module. The sensor converts the light signal into an electrical signal for output. The optical fiber transmission has the characteristics of low loss, light weight, high fidelity, etc., and is suitable for application in the soft mirror sheath.

[0104] In other embodiments, the light guide is not required, for example, a light source such as an LED is provided at the illumination part 431.

[0105] In some embodiments, the soft mirror sheath further comprises an operation channel and a module channel.

[0106] In some embodiments, as shown in Figs. 7 and 8, the soft mirror sheath further comprises an operation assembly 70 provided with a steel wire 72 and a hand wheel 71. The operation assembly 70 is mounted on the sheath shell 30 and connected to the insertion tube 40 through the steel wire 72. The hand wheel 71 can be rotated to bend the insertion tube 40 through the steel wire 72, thereby controlling the angle of the lens module 17. Figure 1 Figure 10 In other embodiments, the operation assembly 70 is electrically driven. For example, the operation assembly 70 comprises a motor, a rotating disc, and a steel wire. One end of the steel wire is fixed to the rotating disc, and the other end is connected to the bending part of the insertion tube 40. The motor drives the rotating disc to rotate, thereby bending the insertion tube.

[0107] The above has described the basic concept. It is obvious that the above detailed disclosure is only used as an example and does not limit the present specification for those skilled in the art. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present specification. Such modifications, improvements and corrections are suggested in the present specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present specification.

[0108] The above has described the basic concept. It is obvious that the above detailed disclosure is only used as an example and does not limit the present specification for those skilled in the art. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present specification. Such modifications, improvements and corrections are suggested in the present specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present specification.

[0109] ​Also, the use of "a" or "an" to describe embodiments of the present disclosure are intended to be a special delective of "one or more," unless otherwise noted. Similarly, expressions such as "at least one of A and B" should be construed to com- prise either A or B or both A and B unless otherwise noted. As used herein, the term "ex- clusively" means that the term is limited to the specific feature, structure, or characteristic being described, and does not encompass any other features, structures, or characteristics.

[0110] Similarly, it is to be noticed that the term "comprising", used in the description, should not be interpreted as being restricted to the means listed thereafter; it does not exclude other elements or steps. It is thus to be interpreted as specifying the presence of the stated features, steps or components as referred to, but does not preclude the presence or addition of one or more other features, steps or components, or groups thereof. Thus, embodiments of the present disclosure also include embodiments in which

[0111] Every patent, patent application, publication, document, article, book, instruction manual, and / or other material cited in this specification is hereby incorporated by reference in its entirety for all purposes to the same extent as if each individual publication, document, article, book, instruction manual, and / or other material were specifically and individually indicated to be incorporated by reference in its entirety for all purposes. In the event of inconsistencies between the disclosure of this specification and the materials incorporated by reference, the disclosure of this specification shall prevail. In the event of inconsistencies between the disclosure of this specification and the descriptions, definitions, and / or terms used in the materials incorporated by reference, the descriptions, definitions, and / or terms used in this specification shall prevail.

[0112] Finally, the embodiments of the present disclosure are to be considered in all respects as illustrative and not restrictive. Other alternatives can be used in place of or in addition to those illustrated and described herein. Thus, the alternative configurations of the embodiments of the present disclosure are to be considered as within the scope of the present disclosure. Accordingly, the embodiments of the present disclosure are not limited to the above-described embodiments, but are only limited by the following claims.

Claims

1. A soft mirror assembly detachably connected with a sheath shell; a distal end of an insertion tube is provided with a connecting cap; characterized in that, the soft mirror assembly comprises a signal transmission member, a lens module, a signal line and an auxiliary support member; when the soft mirror assembly is connected with the sheath shell, the signal line is inserted into the insertion tube, and the insertion tube is used for inserting into a human body; wherein the auxiliary support member comprises a proximal magnetic member and a distal magnetic member, the proximal magnetic member applies a magnetic force to the distal magnetic member to drive the distal magnetic member to move distally, one end of the signal line is directly or indirectly connected to the distal magnetic member, the other end of the signal line is fixedly connected with the lens module, and the magnetic force pushes the lens module to abut against the connecting cap.

2. The soft scope assembly of claim 1, wherein, Further comprising an insertion mirror shell, the insertion mirror shell has a channel accommodating the proximal magnetic member and the distal magnetic member and allowing the distal magnetic member to slide, and the distal magnetic member can slide along the channel.

3. The soft scope assembly of claim 2, wherein, The proximal magnetic member comprises a first proximal magnetic member and a second proximal magnetic member, the first proximal magnetic member is fixedly connected with the insertion mirror shell, the first proximal magnetic member applies a first magnetic repulsion force to the second proximal magnetic member to make the second proximal magnetic member slideably connected in the channel, and the second proximal magnetic member applies a second magnetic repulsion force to the distal magnetic member.

4. The soft scope assembly of claim 3, wherein, The first proximal magnetic member, the second proximal magnetic member and the distal magnetic member are all magnets, and the magnetic pole arrangement is N-S-S-N-N-S or S-N-N-S-N-S.

5. The soft scope assembly of claim 4, wherein, The proximal magnetic member and / or the distal magnetic member is an electromagnet; the soft mirror assembly further comprises a processor configured to control the current of a coil on the electromagnet, thereby controlling the first magnetic repulsion force and / or the second magnetic repulsion force.

6. The soft scope assembly of claim 1, wherein, The auxiliary support member comprises a radial support member; the radial support member is sleeved on the signal line, one end of the radial support member is movably sealed with the insertion mirror fixed seat, the other end is fixedly connected with the lens module, and is used for providing radial support and flexible following.

7. The soft scope assembly of claim 6, wherein, The soft mirror assembly further comprises an insertion mirror outer tube, the insertion mirror outer tube is sleeved outside the radial support member.

8. The soft mirror assembly of claim 6, wherein, The soft mirror assembly further comprises a pull ring and a spring; the spring is sleeved outside the pull ring, located between the insertion mirror fixed seat and the insertion mirror shell; the pull ring is movably connected with the insertion mirror fixed seat; when a sealing cover of a sealing member of the soft mirror sheath is closed, the sealing cover presses the pull ring, and the pull ring drives the spring to press the insertion mirror fixed seat.

9. The soft scope assembly of claim 1, wherein, The signal transmission member further comprises a first connector, and the sheath shell is further provided with a second connector; the signal line is connected with the first connector, the second connector is in communication connection with a signal output module; when the soft mirror assembly is connected with the sheath shell, the first connector and the second connector are connected.

10. A soft-scope sheath characterized by, It comprises: a sheath shell; an insertion tube connected to the sheath shell; a signal output module mounted on the sheath shell and used for outputting image signals; The soft mirror assembly of any one of claims 1-9, which is detachably connected to the sheath shell, a lens module of the soft mirror assembly is inserted into the insertion tube, a signal transmission member of the soft mirror assembly is connected to the signal output module, and the lens module and the signal transmission member are respectively separated from the insertion tube and the signal output module when the soft mirror assembly is detached.

11. The soft-scope sheath of claim 10, wherein, A seal is arranged on the sheath shell, and the seal is used to seal a cavity for accommodating the soft mirror assembly. The seal comprises a sealing cover, a sealing shell, and a sealing ring, and the soft mirror assembly is detachably connected to the sealing shell.

12. The soft-scope sheath of claim 10, wherein, Further comprising: a suction port and a suction pipeline, the suction port being connected to the suction pipeline and used to suck out in-vivo tissue fragments or liquid; a main pipe end of the three-way pipe is in communication with an instrument channel pipe, a distal end of the instrument channel pipe being located in the insertion tube, and a branch pipe end of the three-way pipe is in communication with the suction pipeline.

13. The soft-scope sheath of claim 10, wherein, Further comprising a two-way pipe, the two-way pipe being in communication with the instrument channel pipe, a distal end of the instrument channel pipe being located in the insertion tube.

14. The soft-scope sheath of claim 10, wherein, The insertion tube comprises a supply plug, a tube body, and the connecting cap, the supply plug being provided with an embedding port, the supply plug being fixed to the sheath shell, the connecting cap being connected to a distal end of the tube body, the lens module being inserted into the connecting cap via the embedding port and abutting against the connecting cap.

Images