Sheath tube handle, protective sheath and endoscope

Abstract

The invention discloses a sheathing canal handle, a protective sheath and an endoscope, and relates to the field of medical instruments.The sheathing canal handle is used for being connected with a sheathing canal, the sheathing canal is provided with an insertion channel allowing an insertion part of the endoscope to be inserted, a mounting cavity is formed in the sheathing canal handle and communicates with the insertion channel, and the mounting cavity is provided with an opening allowing an operation handle of the endoscope to be inserted; and at least part of the holding part of the operating handle can be mounted in the mounting cavity. And a holding part of an operating handle of the endoscope passes through the opening and is mounted in the mounting cavity. A medical worker only needs to hold the sheath tube handle with one hand, namely, hold the operating handle at the same time. On the basis, at least part of the holding part of the operating handle is contained in the sheath tube handle of the protective sheath, the overlapping area between the operating handle and the sheath tube handle is increased, the distance between the gravity centers of the operating handle and the sheath tube handle is shortened, and the situation that due to the fact that the gravity center of one of the operating handle and the sheath tube handle deviates from the hand holding center, holding is unstable and strenuous is avoided; and the operation hand feeling of medical staff is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a sheath handle, a protective sheath and an endoscope. Background Art

[0002] Protective sheaths and endoscopes are high-precision medical devices specially designed and widely used in the field of urinary system inspection and treatment. As an auxiliary tool, the protective sheath is usually used to guide the endoscope or other medical devices into the urinary system to ensure the accuracy and safety of the operation. Its design fully considers the physiological structure of the human urinary system, can effectively reduce trauma and complications during surgery, and improve the success rate of surgery and the patient's recovery speed.

[0003] In the prior art, medical personnel often need to hold the protective sheath and the endoscope with both hands, for example, the left hand holds the protective sheath and the right hand holds the endoscope, and the two hands are used to operate the protective sheath and the endoscope respectively. The holding method with both hands may affect the subsequent operations of the medical personnel, such as inserting the treatment instrument.

[0004] Therefore, the current protective sheath is often connected to the distal end of the operating handle of the endoscope, which causes the center of gravity of the combination of the two to deviate. During operation, the gravity of the operating handle and the sheath handle is amplified by the lever effect, and the medical staff is unstable and laborious when holding it, and the medical staff has a poor operating feel for the operating handle and the sheath. Summary of the invention

[0005] In view of the shortcomings of the above related technologies, the present application provides a sheath handle, a protective sheath and an endoscope to solve the above technical problems.

[0006] The present application provides a sheath handle, which is used for the protective sheath of an endoscope. The sheath handle is used to connect with an insertion tube. The insertion tube has an insertion channel for inserting an insertion part of the endoscope. The sheath handle has an installation cavity inside. The installation cavity and the insertion channel are interconnected. The installation cavity has an opening for inserting an operating handle of the endoscope. At least part of the gripping portion of the operating handle can be installed in the installation cavity.

[0007] In one embodiment of the present application, the sheath handle is provided with a first operating component. When the operating handle is installed in the installation cavity, the first operating component and a control mechanism of the operating handle suitable for controlling the bending of the insertion portion of the endoscope are located at the proximal end of the sheath handle.

[0008] In one embodiment of the present application, the first operating component includes a suction valve, and the sheath handle is further provided with a second operating component, the second operating component includes an instrument connector, the suction valve and the instrument connector are connected to the insertion channel, and the suction valve and the instrument connector are spaced apart.

[0009] In one embodiment of the present application, the sheath handle is further provided with a multi-way connector, the distal end of the multi-way connector is provided with a docking channel, the docking channel is used to connect with the insertion tube, the proximal end of the multi-way connector is provided with a negative pressure channel, an instrument channel and an insertion channel suitable for inserting the insertion part, the negative pressure channel is connected to the suction valve, the instrument channel is connected to the instrument connector, and the negative pressure channel, the instrument channel and the insertion channel are all connected to the docking channel; Among them, the axis of the insertion channel is off-axis with the axis of the docking channel, the multi-way connector has a first side and a second side that are far away from each other, the axis of the insertion channel is located on the first side of the axis of the docking channel, and the negative pressure channel and the instrument channel are arranged on the second side of the docking channel.

[0010] In one embodiment of the present application, the sheath handle has a limiting mechanism, and the limiting mechanism is used to cooperate with the operating handle in limiting manner.

[0011] In one embodiment of the present application, the limiting mechanism is disposed on the suction valve, and when the operating handle is installed in the installation cavity, the limiting mechanism and the recessed portion of the control mechanism are limitedly matched.

[0012] In one embodiment of the present application, when the operating handle is installed in the installation cavity, the suction valve and the control mechanism are disposed on opposite sides of the axis of the sheath handle.

[0013] In one embodiment of the present application, the limiting mechanism is disposed on an inner wall forming the installation cavity, and when the operating handle is installed in the installation cavity, the limiting mechanism cooperates with the grip portion to limit the position.

[0014] In one embodiment of the present application, the suction valve and the instrument connector are disposed at opposite ends of the sheath handle, and the suction valve and the instrument connector are disposed on the same side of the sheath handle.

[0015] In one embodiment of the present application, the outer surface of the sheath handle is raised to form a raised portion, and the raised portion is provided with a mounting hole, and the mounting hole is used to install the suction valve and / or the instrument connector.

[0016] In one embodiment of the present application, the opening is formed at one end of the sheath handle away from the insertion tube, and the cross-sectional area of ​​the installation cavity gradually decreases in the direction from the sheath handle to the insertion tube.

[0017] In one embodiment of the present application, the sheath handle includes an inner shell and an outer shell, the inner shell is detachably installed in the outer shell, the installation cavity is formed in the inner shell, the opening is formed in the outer shell, and the proximal end of the insertion tube is connected to the inner shell.

[0018] In one embodiment of the present application, a connecting mechanism is provided at the distal end of the sheath handle, and the connecting mechanism is used for detachable connection with the insertion tube.

[0019] To achieve the above-mentioned purpose and other related purposes, the present application provides a protective sheath, including the aforementioned sheath handle and an insertion tube, the insertion tube is connected to the sheath handle, the insertion tube has an insertion channel, and the insertion channel is connected to the installation cavity.

[0020] In one embodiment of the present application, the insertion tube includes an inner sheath and an outer sheath, the proximal end of the outer sheath is connected to the sheath handle, the distal end of the inner sheath is sealed, and the proximal end of the inner sheath is connected to the installation cavity.

[0021] To achieve the above-mentioned purpose and other related purposes, the present application provides an endoscope, which is applied to the aforementioned protective sheath. The endoscope has an insertion part and an operating handle that are connected to each other. The operating handle has a control mechanism for controlling the bending of the insertion part. The control mechanism has a recessed part that cooperates with the limiting mechanism of the protective sheath.

[0022] The technical solution adopted by the present invention can achieve the following beneficial effects: the gripping portion of the operating handle of the endoscope is opened and installed in the installation cavity. Medical staff only need to hold the sheath handle with one hand, that is, hold the operating handle at the same time. On this basis, at least part of the gripping portion of the operating handle is received in the sheath handle of the protective sheath, and the sheath handle covers the gripping portion of the operating handle of the endoscope. When the medical staff holds the sheath handle for operation, they have the gripping state of holding the endoscope. It realizes the "sheathless" experience, but has the operating feeling of holding the protective sheath and the endoscope at the same time. This setting can increase the overlapping area between the operating handle and the sheath handle, shorten the distance between the centers of gravity of the two, avoid the instability and effort of holding due to the deviation of the center of gravity of one of them from the center of hand grip, and improve the operating feel of the medical staff. The operating range that the medical staff can operate with one hand can cover the operating handle and the sheath handle at the same time, improving the operating efficiency. In addition, at least part of the operating handle can be accommodated in the mounting cavity of the sheath handle, which can increase the contact area between the operating handle and the sheath handle, eliminate stress concentration, avoid fracture of the connection due to gravity, and improve the safety of the protective sheath and endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a schematic structural diagram of a protective sheath shown in an exemplary embodiment of the present application; Figure 2 is a schematic structural diagram of an endoscope shown in an exemplary embodiment of the present application; Figure 3 is a cross-sectional view of a protective sheath and an endoscope shown in an exemplary embodiment of the present application; Figure 4 is a cross-sectional view of a protective sheath shown in an exemplary embodiment of the present application; Figure 5 is a cross-sectional view of an inner shell and an outer shell shown in an exemplary embodiment of the present application; Figure 6 is a schematic structural diagram of a multi-way connector shown in an exemplary embodiment of the present application; Figure 7 is a cross-sectional view of a multi-way connector shown in an exemplary embodiment of the present application; Figure 8 is a cross-sectional view of another protective sheath shown in an exemplary embodiment of the present application; Fig. 9 is a cross-sectional view of another protective sheath shown in an exemplary embodiment of the present application; Fig.10 is a structural schematic diagram of an operating handle shown in an exemplary embodiment of the present application; Fig.11 is a schematic structural diagram of an inner sheath, an outer sheath, and a sheath handle shown in an exemplary embodiment of the present application; Fig.12 yes Fig.11 The enlarged view of point a in the figure; Fig.13 yes Fig.11 The enlarged view of point b in the figure; Fig.14 It is a schematic diagram of the structure of another endoscope shown in an exemplary embodiment of the present application.

[0025] In the figure: 1, protective sheath; 110, insertion tube; 111, inner sheath; 112, outer sheath; 113, insertion channel; 120, sheath handle; 121, inner shell; 122, outer shell; 123, mounting cavity; 124, opening; 125, connecting mechanism; 126, raised portion; 127, mounting hole; 130, instrument connector; 140, suction valve; 150, multi-way connector; 151, docking channel; 152, negative pressure channel; 153, instrument channel; 154, insertion channel; 155, first side; 156, second side; 161, first limiting mechanism; 162, second limiting mechanism; 2, endoscope, 210, insertion part; 220, operating handle; 221, gripping part; 222, control mechanism; 223, recessed part. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0029] In the prior art, medical personnel often need to hold the protective sheath and the endoscope with both hands, for example, the left hand holds the protective sheath and the right hand holds the endoscope, and the two hands are used to operate the protective sheath and the endoscope respectively. The holding method with both hands may affect the subsequent operations of the medical personnel, such as inserting the treatment instrument.

[0030] Therefore, the current protective sheath is often connected to the distal end of the operating handle of the endoscope, but this also causes the center of gravity of the combination of the two to deviate. During the operation, the gravity of the operating handle and the sheath handle is amplified by the lever effect, which makes it unstable and laborious for medical staff to hold, and the medical staff have a poor operating feel for the operating handle and the sheath. At the same time, it is still difficult to achieve one-handed operation, and medical staff still need to frequently change hands or adjust the relative position of their hands.

[0031] The present application provides a sheath handle 120, see Figure 1 as well as Figure 2 The sheath handle 120 is used for the protective sheath 1 of the endoscope 2 . The endoscope 2 can be inserted into the protective sheath 1 , and the protective sheath 1 can protect and guide the endoscope 2 .

[0032] Please review Figure 1 The protective sheath 1 may include an insertion tube 110 and a sheath handle 120 , and the proximal end of the insertion tube 110 is connected to the sheath handle 120 .

[0033] Understandably, see Figure 2 , the protective sheath 1 is used for the insertion of the endoscope 2. The endoscope 2 may include an insertion portion 210 and an operating handle 220 that are connected to each other. The insertion portion 210 may be configured with an active bending segment and / or a passive bending segment. Under the control of the operating handle 220, the active bending segment can rotate toward a specified direction to achieve the control effect of the endoscope 2. The passive bending segment can adapt to the human body cavity to enter the curved and narrow area, thereby improving the passability of the insertion portion 210 of the endoscope 2. The operating handle 220 has a gripping portion 221 for medical staff to hold. The gripping portion 221 is ergonomic and optimizes the operating feel of the endoscope 2. In addition, the medical staff holds the gripping portion 221, which can manipulate the endoscope 2 and improve the operability of the endoscope 2.

[0034] See also Figure 3 The insertion tube 110 may be an elongated tubular structure. Exemplarily, the insertion tube 110 has an insertion channel 113 for inserting the insertion portion 210 of the endoscope 2, and the insertion channel 113 may pass through opposite ends of the insertion tube 110. The insertion channel 113 provides a stable space for the endoscope 2, which is conducive to the insertion of the insertion portion 210 and can reduce stimulation and damage to human tissue.

[0035] In one embodiment, the proximal end of the insertion tube 110 and the sheath handle 120 may be connected by bonding, welding, or the like, thereby improving the connection reliability between the insertion tube 110 and the sheath handle 120 .

[0036] In another embodiment, the insertion tube 110 and the sheath handle 120 are detachably connected, and the connection between the insertion tube 110 and the sheath handle 120 can be fastener connection, clamping, etc., to improve the installation flexibility of the insertion tube 110 and the sheath handle 120.

[0037] In this example, see Figure 4 The sheath handle 120 may be a hollow structure, and a mounting cavity 123 is provided in the sheath handle 120, and the insertion channel 113 is connected to the mounting cavity 123. The mounting cavity 123 is adapted to the operating handle 220 of the endoscope 2, and the mounting cavity 123 can accommodate at least part of the operating handle 220. The mounting cavity 123 has an opening 124 for inserting the operating handle 220 of the endoscope 2, and the operating handle 220 can be inserted into the mounting cavity 123 through the opening 124.

[0038] In this example, see Figure 5, the sheath handle 120 may include an inner shell 121 and an outer shell 122, the inner shell 121 may be detachably mounted in the outer shell 122, and the connection method may be a slot connection, a fastener connection, etc., which is not limited in this embodiment. The mounting cavity 123 is formed in the inner shell 121, and the opening 124 is formed in the outer shell 122. The size and shape of the inner shell 121 may be adapted to the operating handle 220 of the endoscope 2. The proximal end of the insertion tube 110 extends into the outer shell 122 and is connected to the inner shell 121 so that the insertion tube 110 can be connected to the mounting cavity 123. The detachable setting between the inner shell 121 and the outer shell 122 allows the protective sheath 1 to replace a variety of different inner shells 121. A variety of different inner shells 121 can be respectively adapted to endoscopes 2 of various specifications and shapes, so that the protective sheath 1 can be adapted to more types of endoscopes 2. In addition, the outer shell 122 can be mass-produced to reduce costs. However, when different endoscopes 2 need to be adapted, only the corresponding inner shell 121 needs to be produced. This arrangement can reduce the investment in molds, save costs, and also improve the adaptability of the sheath handle 120.

[0039] In this embodiment, if Figure 3 As shown, the insertion portion 210 of the endoscope 2 extends into the insertion channel 113 through the opening 124 and the mounting cavity 123. The gripping portion 221 of the operating handle 220 of the endoscope 2 passes through the opening 124 and is mounted in the mounting cavity 123. The medical staff can hold the sheath handle 120 with one hand, that is, hold the operating handle 220 and the sheath handle 120 at the same time. The gripping portion 221 of the operating handle 220 of the endoscope 2 passes through the opening 124 and is mounted in the mounting cavity 123. The medical staff only needs to hold the sheath handle 120 with one hand, that is, they can hold the operating handle 220 at the same time.

[0040] The existing protective sheath 1 is independently arranged relative to the endoscope 2. Medical personnel often need to hold the endoscope 2 and the protective sheath 1 at the same time, which makes it more difficult to hold and more complicated to operate. It is difficult for medical personnel to operate other devices at the same time, and the holding feeling is not good. In this embodiment, please continue to refer to Figure 3 , the gripping portion 221 of the operating handle 220 of the endoscope 2 passes through the opening 124 and is installed in the installation cavity 123. When the medical staff holds the sheath handle 120 for operation, they are in the gripping state of holding the endoscope 2, and their other hand can operate other devices. The sheath handle 120 conforms to the operation logic of the endoscope 2, that is, it can realize the "sheathless" experience, but has the operation feeling of holding the protective sheath 1 and the endoscope 2 at the same time.

[0041] The current protective sheath 1 is often connected to the distal end of the operating handle 220 of the endoscope 2, which causes the center of gravity of the combination of the protective sheath 1 and the operating handle 220 to deviate. During operation, the gravity of the operating handle 220 and the sheath handle 120 is amplified by the lever effect, and the medical staff is unstable and laborious when holding it. Please continue to read Figure 3 In this embodiment, at least part of the gripping portion 221 of the operating handle 220 is housed in the sheath handle 120 of the protective sheath 1, increasing the overlap area between the operating handle 220 and the sheath handle 120, shortening the distance between the centers of gravity of the two, avoiding the instability and effort caused by the center of gravity of one of them deviating from the center of the hand grip, and improving the operation feel of medical staff. The operation range that medical staff can operate with one hand can cover both the operating handle 220 and the sheath handle 120 at the same time, improving the operation efficiency.

[0042] Because the protective sheath 1 is often connected to the distal end of the operating handle 220 of the endoscope 2, the protective sheath 1 and the endoscope 2 are relatively independent. When the medical staff operates, the protective sheath 1 and the endoscope 2 move relative to each other, and stress is easily generated at the connection between the protective sheath 1 and the endoscope 2, which may cause the protective sheath 1 or the endoscope 2 to break. Figure 3 At least part of the operating handle 220 can be accommodated in the mounting cavity 123 of the sheath handle 120, which can increase the contact area between the operating handle 220 and the sheath handle 120, eliminate stress concentration, avoid fracture of the connection due to gravity or relative movement, and improve the safety of the protective sheath 1 and the endoscope 2.

[0043] Please review Figure 4 , the sheath handle 120 is provided with a first operating component, which includes but is not limited to the suction valve 140, a camera button, etc. When the operating handle 220 is installed in the installation cavity 123, the first operating component and the control mechanism 222 of the operating handle 220 are located at the proximal end of the sheath handle 120. Among them, the control mechanism 222 includes but is not limited to the suction valve of the endoscope 2, the traction wheel lever, etc. For example, the control mechanism 222 can be a lever, the lever is connected to the traction wheel, the traction wheel is connected to the traction rope, and the lever is suitable for controlling the bending of the insertion portion 210 of the endoscope 2. Exemplarily, when the operating handle 220 is installed in the installation cavity 123, the first operating component and the control mechanism 222 are both located at the proximal end of the sheath handle 120. The medical staff holds the end of the sheath handle 120 close to the first operating component, so that the operating range of the hand can cover the first operating component and the control mechanism 222 at the same time, so that the medical staff can operate the endoscope 2 and the protective sheath 1 with one hand at the same time. Medical staff do not need to frequently change hands or adjust the relative position of their hands, which is conducive to improving the operating efficiency of medical staff.

[0044] Preferably, when the operating handle 220 is installed in the installation cavity 123, the first operating component and the control mechanism 222 are arranged on opposite sides of the axis of the sheath handle 120. This arrangement allows the first operating component and the control structure to be independently arranged so that the first operating component and the control structure correspond to multiple fingers of the medical staff. Exemplarily, the first operating component can be the suction valve 140. When the operating handle 220 is installed in the installation cavity 123, the suction valve 140 and the control mechanism 222 are arranged on opposite sides of the axis of the sheath handle 120. After holding the sheath handle 120, the medical staff can press the suction valve 140 with the index finger and at the same time use the thumb to toggle the control mechanism 222. This arrangement allows the medical staff to simultaneously manipulate the first operating component and the control mechanism 222, thereby improving the operating effect of the sheath handle 120.

[0045] In this embodiment, the sheath handle 120 may also be provided with a second operating component, and the first operating component and the second operating component may have different functions. Exemplarily, the first operating component may include a suction valve 140, and the first operating component is used to aspirate the medium, etc. The second operating component includes an instrument connector 130, and the second operating component is used to insert a treatment instrument, etc. The treatment instrument includes but is not limited to biopsy forceps, laser devices, etc. The suction valve 140 and the instrument connector 130 are connected to the insertion channel 113, and the suction valve 140 and the instrument connector 130 are arranged at intervals. The suction valve 140 can be used to be connected to a negative pressure source, and the negative pressure source includes but is not limited to a negative pressure suction pump, etc. The instrument connector 130 can be used to extend into the treatment instrument, etc., and the treatment instrument extends to the distal end of the insertion tube 110 through the instrument connector 130. This setting can make the suction valve 140 and the instrument connector 130 integrated on the sheath handle 120, and the operating handle 220 of the endoscope 2 does not need to be configured with the suction valve 140 and the instrument connector 130, thereby reducing the number of components on the operating handle 220 and reducing its volume. The volume of the operating handle 220 is reduced, and the volume of the sheath handle 120 can also be reduced accordingly, which is convenient for medical staff to hold and operate.

[0046] It is understandable that the protective sheath 1 can also be adapted to the existing endoscope 2. The existing endoscope 2 still has a suction valve and an instrument connector, which can still be installed on the sheath handle 120. Exemplarily, the protective sheath 1 and the endoscope 2 are both provided with a suction valve, and the medical staff can operate the suction valve of the endoscope 2 and the suction valve 140 of the protective sheath 1 with one hand at the same time, so that the suction valve of the endoscope 2 and the suction valve 140 of the protective sheath 1 can act at the same time. For example, one of the endoscope 2 and the protective sheath 1 sucks the medium, and the remaining one injects the medium, thereby improving the use effect of the protective sheath 1 and the endoscope 2.

[0047] In one embodiment, see Figure 4The sheath handle 120 may further include a multi-way connector 150, which may be a three-way connector, a four-way connector, etc., and this embodiment does not limit this. The multi-way connector 150 is disposed in the sheath handle 120, and the multi-way connector 150 may be bonded or welded to the housing 122 of the sheath handle 120, thereby reducing the manufacturing difficulty of the sheath handle 120 and improving the production efficiency of the sheath handle 120.

[0048] Specifically, see Figure 6 The distal end of the multi-way connector 150 is provided with a docking channel 151, and the docking channel 151 is used to connect with the insertion tube 110. Further, the docking channel 151 is connected with the insertion channel 113 of the insertion tube 110. The proximal end of the multi-way connector 150 is provided with a negative pressure channel 152, an instrument channel 153 and an insertion channel 154 suitable for inserting the insertion part 210. The negative pressure channel 152 is connected with the suction valve 140, and the instrument channel 153 is connected with the instrument connector 130. The negative pressure channel 152, the instrument channel 153 and the insertion channel 154 are all connected with the docking channel 151, and the multi-way connector 150 realizes that the insertion tube 110 is connected with the suction valve 140, the instrument connector 130 and the installation cavity 123, the suction valve 140 can control the pressure value in the insertion tube 110, the instrument connector 130 can extend into the treatment instrument until the distal end of the insertion tube 110, and the insertion part 210 can be inserted into the insertion channel 113. This configuration can improve the operability of the protective sheath 1 , integrate different functions, and reduce the volume of the sheath handle 120 .

[0049] Among them, see Figure 7 , the axis of the insertion channel 154 is out of axis with the axis of the docking channel 151. In other words, the insertion portion 210 is inserted into the insertion channel 154, and the axis of the insertion portion 210 can be roughly collinear with the insertion channel 154. The docking channel 151 is connected to the insertion tube 110, and the axis of the insertion tube 110 can be roughly collinear with the docking channel 151. Furthermore, this arrangement can make the insertion portion 210 inserted into the insertion tube 110 offset relative to the insertion tube 110, so that a larger space is formed on one side of the insertion portion 210, and the larger space is conducive to inserting a larger treatment instrument and improving the suction effect of the insertion tube 110.

[0050] Preferably, if Figure 7 As shown, the multi-way connector 150 has a first side 155 and a second side 156 that are spaced apart from each other and are inserted into the axis of the channel 154 (eg, Figure 7 L2 in FIG. 1 ) is located at the axis of the docking channel 151 (as shown in FIG. Figure 7The first side 155 of the insertion portion 210 is shown as L1 in FIG. This arrangement can make the insertion portion 210 biased toward the first side 155 relative to the insertion tube 110, and the space on the side of the insertion portion 210 close to the second side 156 is larger relative to the insertion tube 110. The negative pressure channel 152 and the instrument channel 153 are arranged on the second side 156 of the docking channel 151. The negative pressure channel 152 and the instrument channel 153 are arranged on the second side 156 of the docking channel 151, and the negative pressure channel 152 and the instrument channel 153 can communicate with one side of the larger space, effectively ensuring that the treatment instrument can be inserted into the large space, and improving the suction effect of the insertion tube 110.

[0051] In another case, the multi-way connector 150 can be integrated with the sheath handle 120 to improve the structural stability of the multi-way connector 150 and the assembly efficiency of the protective sheath 1, which will not be elaborated here.

[0052] In this example, see Figure 8 The sheath handle 120 has a limiting mechanism, which is used to limit the operation handle 220. The limiting mechanism includes but is not limited to a bump, a groove, a fixing hole, etc., which is not limited in this embodiment. This arrangement improves the connection stability between the operation handle 220 and the sheath handle 120, eliminates the risk of dislocation of the operation handle 220 during surgery, and improves the safety of use.

[0053] In one embodiment, Figure 8 As shown, the limiting mechanism is arranged on the inner wall forming the installation cavity 123, and when the operating handle 220 is installed in the installation cavity 123, the limiting mechanism and the gripping portion 221 are limited and matched. The connection between the limiting mechanism and the operating handle 220 can be a buckle, a fastener connection, etc., which is not limited in this embodiment. Exemplarily, the limiting mechanism can include a first limiting mechanism 161, and the first limiting mechanism 161 can be a protruding structure formed on the cavity wall, and the gripping portion 221 of the operating handle 220 is correspondingly provided with a recessed structure. When the gripping portion 221 is installed in the installation cavity 123, the first limiting mechanism 161 and the recessed structure cooperate with each other, such as interference fit, to prevent the endoscope 2 and the sheath handle 120 from separating from each other, thereby enabling the endoscope 2 to be fixed to the sheath handle 120. This setting can prevent the operating handle 220 from easily detaching from the sheath handle 120, improve the connection stability between the operating handle 220 and the sheath handle 120, and further improve the safety of the protective sheath 1.

[0054] In another embodiment, please refer to Figure 3, the suction valve 140 can be arranged at the proximal end of the housing 122. When the operating handle 220 is installed in the installation cavity 123, the suction valve 140 can be arranged adjacent to the control mechanism 222. Wherein, the adjacent arrangement means that the suction valve 140 and the control mechanism 222 are arranged adjacent to each other in the length direction of the sheath handle 120. Wherein, the operating part of the operating handle 220 includes a control mechanism 222, and the control mechanism 222 is suitable for controlling the bending of the insertion part 210 of the endoscope 2. The traction rope is connected to the insertion part 210, and the control mechanism 222 can be a traction wheel, which can control the traction rope to achieve the control of the insertion part 210 to be bent in a predetermined direction. Further, the suction valve 140 and the control mechanism 222 are located on opposite sides of the housing 122. This setting is more in line with the operation logic of the existing endoscope 2, for example, the index finger presses the suction valve 140, and the thumb is used to turn the control mechanism 222 to achieve the control of the rotation of the endoscope 2 and the suction of the protective sheath 1.

[0055] Please also read Fig. 9 as well as Fig.10 The limiting mechanism can be arranged on the suction valve 140, and further, it can be arranged on the peripheral side of the suction valve 140. When the suction valve 140 and the control mechanism 222 are arranged adjacent to each other, the limiting mechanism cooperates with the recessed portion 223 of the control mechanism 222. For example, Fig. 9 As shown, the limiting mechanism may include a second limiting mechanism 162, and the second limiting mechanism 162 may be a protrusion on the side of the suction valve 140. Fig.10 As shown, the control mechanism 222 is recessed to form a recessed portion 223. The recessed portion 223 is recessed along the direction from the distal end to the proximal end of the operating handle 220. Along the direction from the proximal end to the distal end of the operating handle 220, the operating handle 220 is installed in the installation cavity 123, and the recessed portion 223 is limited and matched with the second limiting mechanism 162 of the suction valve 140. When at least part of the operating handle 220 is inserted into the installation cavity 123, at least part of the suction valve 140 of the protective sheath 1 is embedded in the recessed portion 223. This setting can prevent the operating handle 220 from rotating in the protective sheath 1, thereby improving the safety of the protective sheath 1. The limiting mechanism can limit the relative position of the control mechanism 222, and then limit the relative position of the operating handle 220, so that the endoscope 2 and the protective sheath 1 are relatively fixed, and the operating handle 220 and the sheath handle 120 are prevented from being separated from each other.

[0056] It is understandable that the limiting mechanism can be provided on the suction valve 140 to limit the relative position of the control mechanism 222. It can also be provided on the inner wall of the mounting cavity 123 to increase the connection stability between the operating handle 220 and the limiting mechanism, so that the limiting structure is redundantly provided. The redundant setting can improve the fixing effect of the limiting mechanism and further improve its reliability.

[0057] In another case, the limiting mechanism in this embodiment can also be configured as other structures. For example, the limiting mechanism can be set as a fixing hole, and after the operating handle 220 is inserted into the installation cavity 123, the through hole of the operating handle 220 is arranged opposite to the fixing hole. Medical staff can use a quick-release screw to drill a through hole and thread the fixing hole to fix the operating handle 220 with the sheath handle 120, which will not be described in detail here.

[0058] In this example, please refer to Figure 4 , the suction valve 140 and the instrument connector 130 are respectively arranged at opposite ends of the sheath handle 120. For example, the instrument connector 130 is arranged at the distal end of the housing 122, that is, the suction valve 140 is arranged at the proximal end of the housing 122, so that the two are far away from each other. Medical staff often hold it near the suction valve 140 for real-time control of the suction valve 140. The instrument connector 130 is arranged away from the suction valve 140, which allows the medical staff to block the instrument connector 130 with their hands, making it easier to insert medical instruments into the instrument connector 130. When the sheath handle 120 of the endoscope 2 is installed in the installation cavity 123, the suction valve 140 is arranged adjacent to the control mechanism 222 suitable for operating the bending of the insertion portion 210 of the endoscope 2.

[0059] In addition, the suction valve 140 and the instrument connector 130 can be arranged on the same side of the sheath handle 120. The same side arrangement means that the suction valve 140 and the instrument connector 130 are located on the same side of the axis of the sheath handle 120, and the two are spaced apart along the axis of the sheath handle 120. This arrangement is the same as the distribution of the suction valve 140 and the instrument connector 130 on the endoscope 2 in the prior art, and conforms to the operating logic and operating habits that have been formed by medical staff. When the endoscope 2 is inserted into the protective sheath 1, this arrangement can make the control logic and holding method of the protective sheath 1 the same as those of the endoscope 2 in the prior art, and the combination of the protective sheath 1 and the endoscope 2 can further bring a "sheathless" experience to medical staff, optimize the operating logic, reduce the learning cost, and make it easy to get started.

[0060] Preferably, please continue to see Figure 4, the opening 124 is provided at the end of the sheath handle 120 away from the insertion tube 110, that is, the opening 124 is arranged at the proximal end of the sheath handle 120. In the direction from the sheath handle 120 to the insertion tube 110, the cross-sectional area of ​​the mounting cavity 123 gradually decreases. For example, the shape of the mounting cavity 123 can be configured as a cone. This setting can make the opening 124 larger, which is convenient for the operating handle 220 to be inserted into the opening 124. In the process of installing the operating handle 220 into the mounting cavity 123, the cavity wall forming the mounting cavity 123 has a guiding function, thereby improving the insertion efficiency of the endoscope 2 into the mounting cavity 123. In addition, this setting can increase the connection area between the cavity wall forming the mounting cavity 123 and the operating handle 220, thereby improving the connection stability between the two. Medical personnel can directly pull out the sheath handle 120 because the inner wall of the mounting cavity 123 can provide a certain support force for the operating handle 220 due to the structure of the mounting cavity 123, so that the insertion tube 110 and the insertion part 210 can be pulled out at the same time, simplifying the operation steps.

[0061] See also Figure 5 , the outer surface of the sheath handle 120 is convexly arranged to form a convex portion 126, and the convex portion 126 is provided with a mounting hole 127, and the mounting hole 127 is used to install the suction valve 140 and / or the instrument connector 130. Specifically, the hole wall convexly arranged to form the mounting hole 127, and the housing 122 is provided with the mounting hole 127. Among them, the number of the mounting holes 127 can be one or more, such as 1, 2, etc., and the mounting holes 127 can be circular holes or rectangular holes, etc., and the present embodiment does not limit the shape, number, etc. of the mounting holes 127. This setting can enable the suction valve 140 and / or the instrument connector 130 to be installed in the mounting hole 127, so that the suction valve 140 and / or the instrument connector 130 have a more clear installation position, and improve the structural strength of the sheath handle 120. In addition, the hole wall convexly arranged to form the mounting hole 127, the convex setting can optimize the holding method of the housing 122, is more ergonomic, and improves the use effect of the protective sheath 1.

[0062] Furthermore, the suction valve 140 and the instrument connector 130 are arranged at intervals, and the medical staff can hold between the suction valve 140 and the instrument connector 130. The number of the mounting holes 127 can be two, and the suction valve 140 and the instrument connector 130 are installed in the mounting holes 127. The raised hole wall can limit the hand of the medical staff, thereby improving the grip of the medical staff.

[0063] It is understandable that by adjusting the shape and size of the inner shell 121 , the inner shell 121 can be adapted to the existing endoscope 2 , so that the existing endoscope 2 can also be installed in the installation cavity 123 , thereby improving the adaptability of the sheath handle 120 .

[0064] In this example, please refer to Figure 8, a connecting mechanism 125 is provided at the distal end of the sheath handle 120, and the connecting mechanism 125 may be a threaded member, a clamping member, etc., which is not limited in the present embodiment. The connecting mechanism 125 is used to be detachably connected to the insertion tube 110, and the connecting structure is detachably connected to the proximal end of the insertion tube 110. The connecting mechanism 125 can adapt to different insertion tubes 110 and connect them to the sheath handle 120. Exemplarily, the existing insertion tube 110 has a mounting portion connected to the endoscope 2, for example, the mounting portion is provided with an internal thread. The mounting portion is correspondingly arranged with the connecting mechanism 125, for example, the connecting mechanism 125 is correspondingly provided with an external thread. The mounting portion is detachably connected to the connecting mechanism 125, so that the sheath handle 120 can adapt to the existing protective sheath 1, thereby improving the adaptability of the sheath handle 120.

[0065] Furthermore, the docking channel 151 of the multi-way connector 150 can extend into the connecting mechanism 125 , and when the insertion tube 110 is connected to the connecting mechanism 125 , the docking channel 151 can communicate with the insertion channel 113 of the insertion tube 110 .

[0066] It is understandable that the connection mechanism 125 is connected to the existing insertion tube 110, and the inner shell 121 can be adapted to the existing endoscope 2. This arrangement can significantly improve the adaptability of the sheath handle 120, make full use of the existing insertion tube 110 and endoscope 2, reduce the use cost of the sheath handle 120, and enable the sheath handle 120 to be widely used.

[0067] In this example, see Fig.11 as well as Fig.12 The insertion tube 110 may include an inner sheath 111 and an outer sheath 112. The diameter ratio between the inner sheath 111 and the outer sheath 112 may be 1:2, 1:3 or 1:4, etc., which is not limited in this embodiment. The inner sheath 111 is disposed in the outer sheath 112, and the suction valve 140 and the instrument connector 130 are connected to the outer sheath 112. The insertion channel 113 is formed in the inner sheath 111. The inner sheath 111 and the outer sheath 112 are independently disposed. The inner sheath 111 can provide an independent insertion channel 113 for the insertion portion 210 of the endoscope 2, thereby avoiding entanglement between the insertion portion 210 and the treatment instrument, and improving the independence and safety of the insertion portion 210.

[0068] The distal end of the inner sheath 111 is sealed, and the proximal end of the inner sheath 111 is connected to the inner shell 121. The insertion channel 113 is sealed, and the insertion portion 210 located in the insertion channel 113 does not directly contact the external environment. For example, the insertion portion 210 does not directly or indirectly contact the human body cavity. The insertion channel 113 can prevent the insertion portion 210 from being contaminated, and the endoscope 2 can be reused. In addition, the disinfection requirements of the insertion portion 210 will also be reduced, reducing the cost of use.

[0069] In a more specific embodiment, see Fig.13 , the outer sheath 112 is connected to the docking channel 151, and the inner sheath 111 extends into the docking channel 151 of the multi-way connector 150, and is connected with the insertion channel 154, so that the inner sheath 111 is connected to the installation cavity 123. The setting of the multi-way connector 150 realizes the connection between the inner sheath 111 and the sheath handle 120, so that the insertion channel 113 and the installation cavity 123 are connected to each other. At the same time, the setting can also make the instrument connector 130 communicate with the gap between the outer sheath 112 and the inner sheath 111, and / or, the suction valve 140 communicates with the gap between the outer sheath 112 and the inner sheath 111. The gap can implement suction operation or instrument operation, etc., to improve the independence and operability of the inner sheath 111 and the outer sheath 112.

[0070] Preferably, the inner sheath 111 and the outer sheath 112 are fixed to each other, that is, the inner walls of the inner sheath 111 and the outer sheath 112 are connected to each other, so that the inner sheath 111 and the outer sheath 112 are fixed to each other to prevent the inner sheath 111 from swinging or tilting in the outer sheath 112 and affecting the normal operation of the suction valve 140 and the instrument connector 130.

[0071] In order to achieve the above-mentioned purpose and other related purposes, the present application provides a protective sheath 1, see Figure 1 The protective sheath 1 may include the aforementioned sheath handle 120. In this way, the protective sheath 1 has the beneficial effects of any of the aforementioned solutions, which will not be described in detail here.

[0072] In one embodiment, the protective sheath 1 may include an insertion tube 110, the insertion tube 110 includes an inner sheath 111 and an outer sheath 112, and the insertion channel 113 is disposed in the inner sheath 111. Further, the distal end of the inner sheath 111 may be sealed, the insertion channel 113 may prevent the insertion portion 210 from being contaminated, and the endoscope 2 may be reused.

[0073] To achieve the above-mentioned and other related purposes, the present application provides an endoscope 2, see Fig.14 , applied to the aforementioned protective sheath 1. In this way, the endoscope 2 has the beneficial effects of any of the aforementioned solutions, which will not be repeated here. The endoscope 2 can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiment of the present application does not specifically limit the type of the endoscope 2.

[0074] In this embodiment, the endoscope 2 has an insertion portion 210 and an operating handle 220 connected to each other, the operating handle 220 has a control mechanism 222 for controlling the bending of the insertion portion 210, and the control mechanism 222 has a recessed portion 223 that cooperates with the limiting mechanism of the protective sheath 1. Exemplarily, at least part of the suction valve 140 of the protective sheath 1 is embedded in the recessed portion 223, and the recessed portion 223 can reduce the volume of the control mechanism 222 and shorten the distance between the control mechanism 222 and the suction valve 140, and it can also limit the relative position between the operating handle 220 and the sheath handle 120 to prevent them from being separated or relatively rotating.

[0075] The technical solution adopted by the present invention can achieve the following beneficial effects: the gripping portion 221 of the operating handle 220 of the endoscope 2 passes through the opening 124 and is installed in the installation cavity 123. The medical staff only needs to hold the sheath handle 120 with one hand, that is, hold the operating handle 220 at the same time. On this basis, at least part of the gripping portion 221 of the operating handle 220 is received in the sheath handle 120 of the protective sheath 1, and the sheath handle 120 covers the gripping portion 221 of the operating handle 220 of the endoscope 2. When the medical staff holds the sheath handle 120 for operation, they have the gripping state of holding the endoscope 2. It realizes the "sheathless" experience, but has the operating feeling of holding the protective sheath 1 and the endoscope 2 at the same time. This setting can increase the overlapping area between the operating handle 220 and the sheath handle 120, shorten the distance between the centers of gravity of the two, avoid the instability and laboriousness of holding due to the center of gravity of one of them deviating from the center of hand grip, and improve the operation feel of medical staff. The operation range that medical staff can operate with one hand can cover both the operating handle 220 and the sheath handle 120 at the same time, improving the operation efficiency. In addition, at least part of the operating handle 220 can be accommodated in the installation cavity 123 of the sheath handle 120, which can increase the contact area between the operating handle 220 and the sheath handle 120, eliminate the stress concentration phenomenon, avoid the occurrence of fracture of the connection due to gravity, and improve the safety of the protective sheath 1 and the endoscope 2.

[0076] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0077] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0078] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sheath handle for a protective sheath of an endoscope, characterized in that: The sheath handle is used to be connected to the insertion tube, and the insertion tube has an insertion channel for inserting the insertion part of the endoscope. The sheath handle has an installation cavity, and the installation cavity is communicated with the insertion channel. The installation cavity has an opening for inserting the operating handle of the endoscope, and at least part of the gripping portion of the operating handle can be installed in the installation cavity.

2. The sheath handle according to claim 1, characterized in that: The sheath handle is provided with a first operating component. When the operating handle is installed in the installation cavity, the first operating component and a control mechanism of the operating handle suitable for controlling the bending of the insertion portion of the endoscope are located at the proximal end of the sheath handle.

3. The sheath handle according to claim 2, characterized in that: The first operating component includes a suction valve, and the sheath handle is further provided with a second operating component, the second operating component includes an instrument connector, the suction valve and the instrument connector are connected to the insertion channel, and the suction valve and the instrument connector are spaced apart.

4. The sheath handle according to claim 3, characterized in that: The sheath handle is also provided with a multi-way connector, the distal end of the multi-way connector is provided with a docking channel, the docking channel is used to connect with the insertion tube, the proximal end of the multi-way connector is provided with a negative pressure channel, an instrument channel and an insertion channel suitable for inserting the insertion part, the negative pressure channel is connected with the suction valve, the instrument channel is connected with the instrument connector, and the negative pressure channel, the instrument channel and the insertion channel are all connected with the docking channel; Among them, the axis of the insertion channel is off-axis with the axis of the docking channel, the multi-way connector has a first side and a second side that are far away from each other, the axis of the insertion channel is located on the first side of the axis of the docking channel, and the negative pressure channel and the instrument channel are arranged on the second side of the docking channel.

5. The sheath handle according to claim 3, characterized in that: The sheath handle has a limiting mechanism, and the limiting mechanism is used for limiting cooperation with the operating handle.

6. The sheath handle according to claim 5, characterized in that: The limiting mechanism is arranged on the suction valve, and when the operating handle is installed in the installation cavity, the limiting mechanism and the recessed portion of the control mechanism are in limiting cooperation; And / or, the limiting mechanism is arranged on an inner wall forming the installation cavity, and when the operating handle is installed in the installation cavity, the limiting mechanism cooperates with the gripping portion in a limiting manner; And / or, when the operating handle is installed in the installation cavity, the suction valve and the control mechanism are arranged on opposite sides of the axis of the sheath handle.

7. The sheath handle according to claim 3, characterized in that: The suction valve and the instrument connector are respectively arranged at two opposite ends of the sheath handle, and the suction valve and the instrument connector are arranged on the same side of the sheath handle; And / or, the outer surface of the sheath handle is convexly arranged to form a convex portion, the convex portion is provided with a mounting hole, and the mounting hole is used to mount the suction valve and / or the instrument connector; And / or, the opening is formed at an end of the sheath handle away from the insertion tube, and the cross-sectional area of ​​the installation cavity gradually decreases in the direction from the sheath handle to the insertion tube; And / or, the sheath handle comprises an inner shell and an outer shell, the inner shell is detachably mounted in the outer shell, the mounting cavity is formed in the inner shell, the opening is formed in the outer shell, and the proximal end of the insertion tube is connected to the inner shell; And / or, a connecting mechanism is provided at the distal end of the sheath handle, and the connecting mechanism is used for detachably connecting with the insertion tube.

8. A protective sheath, characterized in that: It comprises the sheath handle and the insertion tube as described in any one of claims 1 to 7, wherein the insertion tube is connected to the sheath handle, and the insertion tube has an insertion channel, and the insertion channel is communicated with the installation cavity.

9. The protective sheath according to claim 8, characterized in that: The insertion tube comprises an inner sheath and an outer sheath, the proximal end of the outer sheath is connected to the sheath handle, the distal end of the inner sheath is sealed, and the proximal end of the inner sheath is connected to the installation cavity.

10. An endoscope, characterized in that: Applied to the protective sheath as described in claim 8 or 9, the endoscope has an insertion part and an operating handle connected to each other, the operating handle has a control mechanism for controlling the bending of the insertion part, and the control mechanism has a recessed part that cooperates with the limiting mechanism of the protective sheath.

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