Instrument tube device and surgical instrument

Abstract

The present application relates to a kind of instrument tube device and surgical instrument, the surgical instrument includes terminal instrument and instrument tube device, the instrument tube device includes instrument tube and sealing structure;The sealing structure is arranged in instrument tube and is arranged close to the far end;The sealing structure has the passage allowing transmission member to pass through;The passage has closed state and open state, and can be switched between closed state and open state;The passage in closed state can be sealed by gripping transmission member;The passage in open state can be unsealed by releasing transmission member, and the far end of the instrument tube is connected with terminal instrument.The present application can ensure the sealing of instrument tube, reduce the cleaning difficulty of surgical instrument, and reduce the risk of cross infection, improve the safety of operation.

Description

Technical Field

[0001] This invention relates to the field of surgical instrument technology, and in particular to an instrument tube device and a surgical instrument. Background Technology

[0002] The use of surgical robots in surgery is now quite common. Robotic surgery requires various surgical instruments, most of which need to be inserted into the body for manipulation, such as laparoscopes, scalpels, and forceps used for intra-abdominal treatments. During laparoscopic surgery, to prevent abdominal contractions caused by gas leakage, it is necessary to ensure a tight seal between the abdominal cavity and the outside. Therefore, a sealing structure is usually installed inside the instrument tube to ensure this seal. This sealing structure seals the distal end of the instrument tube and has pre-drilled holes for the transmission wire to pass through. However, traditional sealing structures sometimes fail to fully hold the transmission wire, thus not guaranteeing a complete seal. Blood or tissue can still enter the instrument tube through the holes in the sealing structure, making instrument cleaning difficult and increasing the risk of cross-infection. Summary of the Invention

[0003] The purpose of this invention is to provide an instrument tube device and surgical instruments to solve the problems of poor sealing of instrument tubes in existing surgical instruments, which leads to difficulties in cleaning and the risk of cross-infection.

[0004] To achieve the above objectives, the present invention provides an instrument tube device comprising an instrument tube and a sealing structure; the sealing structure is disposed within the instrument tube and located near the distal end of the instrument tube; the sealing structure has a channel allowing a transmission member to pass through; the channel has a closed state and an open state, and is switchable between the closed state and the open state; in the closed state, the channel can grip the transmission member to seal; in the open state, the channel can release the transmission member to release the seal.

[0005] In one embodiment, the sealing structure is deformable as a whole, and the opening and closing of the channel is controlled by radial pressure between the instrument tube and the sealing structure.

[0006] In one embodiment, the instrument tube is provided with a radial pressure regulating mechanism, which has a first state and a second state and can switch between the first state and the second state. When the radial pressure regulating mechanism is in the first state, it can increase the radial pressure between the instrument tube and the sealing structure, causing the sealing structure to contract radially, so that the channel closes and holds the transmission member. When the radial pressure regulating mechanism is in the second state, the radial pressure between the instrument tube and the sealing structure allows the sealing structure to expand radially, so that the channel opens and releases the transmission member.

[0007] In one embodiment, the instrument tube consists of a proximal instrument tube and a distal instrument tube, the distal end of the proximal instrument tube and the proximal end of the distal instrument tube being loosely or loosely connected by the radial pressure adjustment mechanism.

[0008] In one embodiment, the radial pressure regulating mechanism includes a mating external tapered thread and an internal tapered thread, the external tapered thread being disposed on one of the proximal instrument tube and the distal instrument tube, and the internal tapered thread being disposed on the other of the proximal instrument tube and the distal instrument tube.

[0009] In one embodiment, the channel itself is deformable, and the opening and closing of the channel is controlled by the pressure exerted on the channel itself.

[0010] In one embodiment, the channel has opposing inlet and outlet ends;

[0011] When the pressure on the channel is less than the preset pressure value, the channel is in the closed state, and the diameter of the inlet end is larger than the diameter of the outlet end, and the outlet end grips the transmission component.

[0012] When the pressure in the channel is greater than the preset pressure value, the channel changes from the closed state to the open state, and the diameter of the outlet end in the open state is greater than the diameter of the outlet end in the closed state, so that the outlet end releases the transmission component.

[0013] In one embodiment, the aperture of the channel in the open state gradually increases from the distal end to the proximal end.

[0014] In one embodiment, the sealing structure has a valve mounting hole that extends through the sealing structure along its axial direction. A valve is disposed within the valve mounting hole, and the valve is composed of multiple leaflets. The multiple leaflets disposed within the same valve mounting hole enclose the channel. The valve has a fixed end and a movable end, and the movable end is capable of opening and closing. When the channel is in the closed state, the movable end of the valve grips the transmission member. When the channel is in the open state, the movable end of the valve releases the transmission member.

[0015] In one embodiment, the valve mounting hole has an inlet end and an outlet end, the fixed end of the valve is disposed at the inlet end, and the movable end of the valve is disposed at the outlet end.

[0016] In one embodiment, the sealing structure has a plurality of said channels, each said channel being for passage of one of said transmission members.

[0017] To achieve the above objectives, the present invention also provides a surgical instrument comprising an end instrument and an instrument tube device as described in any one of the claims, wherein the end instrument is disposed at the distal end of the instrument tube in the instrument tube device.

[0018] In one embodiment, the surgical instrument further includes an instrument housing device disposed at the proximal end of the instrument tube, the instrument housing device including a transmission member that passes through the instrument tube and the sealing structure and is connected to the end instrument, the transmission member being used to drive the end instrument to move.

[0019] The instrument tube device and surgical instrument provided by this invention include: an instrument tube and a sealing structure; the sealing structure is disposed inside the instrument tube and near its distal end; the sealing structure has a channel allowing a transmission member to pass through; the channel has a closed state and an open state, and can switch between the closed state and the open state; in the closed state, the channel can hold the transmission member tightly to seal; in the open state, the channel can release the transmission member to release the seal. With this configuration, since the channel on the sealing structure can open and close, when the surgical instrument is in normal use, the closed channel can tightly hold the transmission member, thereby ensuring the sealing of the instrument tube. When the surgical instrument needs to be cleaned, the channel can open and release the transmission member, creating a gap between the transmission member and the channel, allowing water to flow through the gap from the proximal end to the distal end, facilitating the cleaning of the surgical instrument, reducing the risk of cross-infection, and improving surgical safety. Attached Figure Description

[0020] The features, properties, and advantages of the implementation methods and related embodiments of the present invention will be described in conjunction with the following drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the working scenario of the surgical robot system in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the execution end of the surgical robot system in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the surgical instruments in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the end effector in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram showing the sealing structure located inside the instrument tube and near the distal end in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the sealing structure sealing instrument tube in Embodiment 1 of the present invention;

[0027] Figure 7 This is a schematic diagram of the sealing structure in Embodiment 1 of the present invention;

[0028] Figure 8 This is a schematic diagram of the radial pressure adjustment mechanism built into the instrument tube in Embodiment 1 of the present invention;

[0029] Figure 9a This is a schematic diagram showing the state of the channel and the transmission wire during normal operation of the surgical instrument in Embodiment 1 of the present invention;

[0030] Figure 9b This is a schematic diagram showing the state of the gap formed between the channel and the transmission wire during the cleaning of surgical instruments in Embodiment 1 of the present invention;

[0031] Figure 10 This is a schematic diagram of the sealing structure sealing instrument tube in Embodiment 2 of the present invention;

[0032] Figure 11 This is a schematic diagram of the sealing structure in Embodiment 2 of the present invention;

[0033] Figure 12a This is a schematic diagram showing the state of the channel and the transmission wire during normal operation of the surgical instrument in Embodiment 2 of the present invention;

[0034] Figure 12b This is a schematic diagram showing the state of the gap formed between the channel and the transmission wire during the cleaning of surgical instruments in Embodiment 2 of the present invention.

[0035] [The annotations in the attached figures are explained below]:

[0036] In the diagram: 1-Control end; 2-Image end; 3-Actuation end; 301-Robotic arm; 302-Endoscope; 303-Surgical instrument; 304-Operating trolley; 3031-Instrument box device; 3032-Instrument tube; 30321-Proximal instrument tube; 30322-Distal instrument tube; 3033-End-effector; 30331-Rotation joint; 30332-Yaw joint; 30333-Pitch joint; 30334-Opening joint; 3034-Sealing structure; 30341-Channel; 3035-Drive wire; a, b-Flow direction; c-Inlet end; d-Outlet end. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. In this application, for ease of understanding, terms such as "proximal" and "distal" are used. These terms refer to the relative orientation, position, or direction of elements or movements relative to each other from the perspective of the surgeon using the surgical instrument. "Proximal" and "distal" are not limiting, but "proximal" generally refers to the end of the instrument tube or surgical instrument that is closer to the operator during normal operation, while "distal" generally refers to the end of the instrument tube or surgical instrument that is farther from the operator. As used herein, the singular forms "a," "an," and "the" include the plural objects unless the content expressly indicates otherwise.

[0039] As used herein, the term "or" is generally used to include the meaning of "and / or" unless otherwise expressly stated. As used herein, the terms "a plurality of" and "a number" are generally used to include the meaning of "two or more" unless otherwise expressly stated. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or at least two of that feature. Additionally, the term "axial" refers to a tube device or surgical instrument, meaning a direction parallel to the longitudinal axis of the tube device or surgical instrument; "radial" refers to a tube device or surgical instrument, meaning a direction perpendicular to the longitudinal axis of the device; "radial pressure" refers to the direction along the diameter of the tube; "radial contraction" refers to contraction along the diameter of the tube towards the longitudinal axis of the tube; and "radial expansion" refers to opening along the diameter of the tube away from the longitudinal axis of the tube.

[0040] The present invention will now be described in more detail with reference to the accompanying drawings and preferred embodiments. Unless otherwise specified, the following embodiments and features can complement or combine with each other.

[0041] Figure 1 This is an application scenario diagram of a surgical robot system provided in an embodiment of the present invention. For example... Figure 1 As shown, the surgical robot system includes a control terminal 1, an image terminal 2, and an execution terminal 3.

[0042] The control terminal 1 can be the operating terminal of a teleoperated surgical robot and includes a main console. The main console contains a main operating unit (not labeled, such as the main operating hand) mounted thereon. The main operating unit is used to receive the operator's hand movement information as the motion control signal input for the entire system. The control terminal 1 also includes a computing device, which is used to convert the operator's operation information into master-slave control commands. The master-slave control commands include motion information and a master-slave mapping relationship. The control terminal 1 may also include a foot-operated surgical control device (not labeled), through which the operator can input related operation commands such as electrocautery and electrocoagulation.

[0043] The execution end 3 is the specific execution platform of the teleoperated surgical robot system and includes a surgical robot that performs surgical operations; the computing device of the control end 1 sends the master-slave control instructions to the execution end 3; the computing device of the execution end 3 is used to output the master-slave control instructions; the surgical robot controls the movement of surgical instruments according to the received master-slave control instructions; the execution end 3 and the control end 1 can be configured with separate computing devices or share the same computing device.

[0044] More specifically, the computing device of the execution end 3 is used to output master-slave control commands based on the motion information sent by the computing device of the control end 1 and the preset master-slave mapping relationship, so as to control the surgical robot to execute the master-slave control commands to drive the movement of the surgical instruments. For example, the execution end 3 controls the surgical robot to drive the movement of the surgical instruments based on the moving speed of the operating unit in the master console, and controls the surgical robot to drive the rotation of the surgical instruments based on the rotation angle or rotation speed of the operating unit, and can also control the surgical robot to drive the bending of the surgical instruments based on the bending angle or bending direction of the operating unit. Preferably, the operator and the control end 1 are located in different rooms from the execution end 3 to achieve physical isolation between the operator and the patient.

[0045] The control terminal 1 and the execution terminal 3 can also be located in different hospitals or regions and connected via remote communication technology. In this way, during the diagnosis and treatment of respiratory diseases, the operator can complete the required surgical procedures in another room, another hospital, or another city based on the image information acquired by the image acquisition equipment, while the surgical robot replicates all the operator's actions, thereby achieving physical isolation between the operator and the patient during the surgical process.

[0046] The surgical robot system may also include a surgical cart. The surgical robot is mounted on the surgical cart. The surgical cart allows the surgical robot to move extensively within the operating room, making the surgical procedure more convenient. The surgical robot system may also include other auxiliary equipment, such as a hospital bed, which supports and adjusts the patient's height. The control unit 1 performs surgery on the patient on the hospital bed through an operating unit, such as minimally invasive surgical treatment.

[0047] The image terminal 2 includes an image carriage and an image acquisition device. The image carriage includes an image processing device communicatively connected to the image acquisition device. The image acquisition device, for example, is an endoscope, used to acquire surgical field images within the cavity (referring to the patient's body cavity). The image processing device performs image processing on the surgical field images acquired by the image acquisition device and transmits them to an image display device. The image display device can be located on the image carriage and / or at the main control console. The image carriage allows for extensive movement of the image processing device within the operating room. Furthermore, the surgical robot system can also be configured with auxiliary components such as anesthesia machines and ventilators for use during surgery. The anesthesia machine is generally located beside the bedside and is used to deliver anesthetic drugs to the patient to meet the needs of surgical anesthesia. Those skilled in the art can select and configure these auxiliary components according to existing technology, which will not be described in detail here.

[0048] It should be noted that the surgical robot system disclosed in the above examples is only an example of an application scenario and not a limitation on the application scenario of the surgical robot system. The surgical robot system is not limited to a master-slave teleoperated surgical robot, but can also be a single-end surgical robot system, that is, without master-slave control, and the operator directly operates the surgical robot to perform surgery at the execution end. This invention is not limited to this.

[0049] Figure 2 A specific embodiment of the above-described execution terminal 3 is shown. For example... Figure 2 As shown, the execution end 3 is the direct operating component of the surgical robot system located at the patient's operating table. It includes a surgical robot comprising multiple independently mounted robotic arms 301. Some robotic arms 301 are equipped with endoscopes 302, and others are equipped with surgical instruments 303. It should be understood that the surgical instruments described in this invention include surgical instruments 303 for performing surgical operations, as well as endoscopes 302 for acquiring images. Some robotic arms 301 control the three-dimensional spatial movement of the distal surgical instruments 303 within the body and have the ability to control the movement of the surgical instruments 303 around a fixed point; the endoscope 302 can also be mounted on other robotic arms 301 and can be operated by the operator to observe the surgical area.

[0050] The surgical robot is generally mounted on a surgical cart 304. The surgical cart 304 is the basic support for the actuator 3, and has movable casters that can be moved or fixed as needed. It also has moving and rotating joints that can adjust the position and orientation of the robotic arm 301 located at its top.

[0051] Figure 3 An exemplary embodiment of the surgical instrument is shown. (As shown) Figure 3As shown, the surgical instrument is a surgical tool 303, which includes an instrument housing device 3031, an instrument tube 3032, and an end effector 3033. The instrument housing device 3031 is located at the proximal end of the instrument tube 3032, and the end effector 3033 is located at the distal end of the instrument tube 3032. The instrument housing device 3031 may include a transmission member that passes through the instrument tube 3032 and connects to the end effector 3033. The transmission member is used to drive the end effector 3033 to move. A robotic arm 301 is detachably connected to the instrument housing device 3031 and can output power to the instrument housing device 3031 to drive the surgical tool 303 to move. The robotic arm 301, together with the surgical tool 303, controls the spatial position and orientation of the end effector 3033.

[0052] This invention does not impose any special requirements on the type of surgical tool 303; those skilled in the art can select one according to the needs of the surgery. Generally, the surgical tool 303 comes in various specifications, such as needle holders, straight scissors, and single-polar arc scissors, to meet the needs of the surgical procedure. Furthermore, most of the surgical tools 303 have multiple degrees of freedom, such as yaw, pitch, opening / closing, and rotation.

[0053] Figure 4 An exemplary embodiment of the above-described end-effector 3033 is shown. For example... Figure 4 As shown, the end effector 3033 has four degrees of freedom: a rotation joint 30331, a yaw joint 30332, a pitch joint 30333, and an opening and closing joint 30334. The pitch, yaw, and opening and closing movements are controlled by a transmission component, typically a flexible transmission wire, while the rotation movement can be controlled by the rotation of the instrument tube 3032.

[0054] Given that blood or tissue may be introduced into the instrument tube 3032 during surgery, incomplete cleaning could lead to cross-infection in subsequent patients. Therefore, it is necessary to seal the distal end of the instrument tube 3032. This embodiment of the invention also provides an instrument tube device, comprising an instrument tube 3032 and a sealing structure. The sealing structure is disposed within the instrument tube 3032 and near its distal end. The sealing structure has a channel allowing a transmission member to pass through. The channel has a closed state and an open state, and can switch between the two states. In the closed state, the channel can hold the transmission member for sealing; in the open state, the channel can release the transmission member to release the seal. Here, "releasing" should be understood as forming a gap between the transmission member and the channel wall, allowing water flow to clean the instrument.

[0055] The present invention also provides a surgical instrument (such as a surgical tool, endoscope) comprising the instrument tube assembly and a distal instrument, wherein the distal end of the instrument tube in the instrument tube assembly is provided with the distal instrument.

[0056] Compared with existing technologies, the instrument tube device solves the problem that the sealing structure in existing technologies cannot tightly hold the transmission component by adjusting the opening and closing of the channel on the sealing structure. Therefore, during normal use of surgical instruments, the sealing structure of this invention can tightly hold the transmission component, ensuring the sealing of the instrument tube and effectively preventing tissue adhering to the transmission component from entering the interior of the instrument tube 3032. It also prevents blood from entering the interior of the instrument tube 3032. Furthermore, during surgical instrument cleaning, the sealing structure can form a gap with the transmission component to allow water to flow through, ultimately completing the cleaning of the surgical instruments. During cleaning, the cleaning water flows from the proximal end to the distal end of the instrument tube 3032, such as... Figure 6 The flow is directed by arrow a into the instrument tube 3032 and finally flows out of the instrument tube 3032 in the direction indicated by arrow b.

[0057] Figure 5 A view showing a sealing structure 3034 provided at the distal end of the instrument tube 3032 is shown. (See diagram) Figure 5 As shown, a sealing structure 3034 is provided inside the instrument tube 3032 near its distal end. The sealing structure 3034 is fixedly disposed inside the instrument tube 3032, and its outer periphery fits tightly against the inner wall of the instrument tube 3032 to ensure a tight seal, and the sealing structure 3034 will not shift. The connection between the sealing structure 3034 and the instrument tube 3032 can be various, such as one or more of the following: interference fit connection, adhesive bonding. The sealing structure 3034 is provided with a channel 30341, which axially penetrates the sealing structure 3034. The channel 30341 can open and close to achieve adjustable size to meet the needs of sealing and cleaning. Furthermore, the fact that the sealing structure 3034 is located near the distal end of the instrument tube 3032 should be understood as the distal end face of the sealing structure 3034 being aligned with the distal end face of the instrument tube 3032, or the sealing structure 3034 being slightly recessed proximally, with a small recessed distance that does not affect cleaning.

[0058] The preferred embodiments of the sealing structure 3034 will be further described below with reference to the specific examples.

[0059] <Example 1>

[0060] like Figure 6 and Figure 7As shown, the transmission wire 3035 is used as the transmission component for explanation. In this embodiment, the sealing structure 3034 is deformable as a whole and is provided with channels 30341 (i.e., through holes) that allow the transmission wires 3035 to pass through. The number and position of the channels 30341 are set according to the number and position of the transmission wires 3035. Generally, one channel 30341 allows one transmission wire 3035 to pass through. In this embodiment, there are six transmission wires 3035, and each of the six transmission wires 3035 passes through a corresponding channel 30341.

[0061] The sealing structure 3034 is an integrally deformable elastomer, such as a medical polymer elastomer, including but not limited to elastomers made of medical silicone, such as medical TPU. If medical silicone is used to make the sealing structure 3034, its tear resistance, high temperature resistance, high pressure resistance, and environmental friendliness result in a good sealing effect. Furthermore, the relatively soft material of medical silicone allows it to contract inwards under radial force and return to its original shape when the radial force decreases. The opening and closing of the channel 30341 is controlled by the radial pressure between the instrument tube 3032 and the sealing structure 3034. By adjusting the radial pressure of the instrument tube 3032 on the sealing structure 3034, the aperture of the channel 30341 can be increased or decreased. Specifically, increasing the radial pressure between the sealing structure 3034 and the instrument tube 3032 causes the sealing structure 3034 to contract as a whole, reducing the diameter of the channel 30341 until the channel 30341 closes and tightly holds the transmission wire 3035, ensuring a tight seal. Conversely, decreasing the radial pressure between the sealing structure 3034 and the instrument tube 3032 causes the sealing structure 3034 to spring back as a whole, increasing the diameter of the channel 30341 or restoring it to its original size until the channel 30341 opens, creating a gap between the channel 30341 and the transmission wire 3035 that allows water to pass through. When the channel 30341 is in the closed state (i.e., the contracted state), the overall diameter of the channel 30341 is smaller than the diameter of the transmission wire 3035, thus tightly holding the transmission wire 3035. When the channel 30341 is in the open state (i.e., the non-contracted state), the overall diameter of the channel 30341 is larger than the diameter of the transmission wire 3035, thus loosening the transmission wire 3035 and creating a gap. When the channel 30341 is open, the aperture is 1.0 mm and the diameter of the drive wire 3035 is 0.6 mm. When the channel changes from open to closed, the aperture of the channel 30341 is less than 0.6 mm to form an interference fit.

[0062] The instrument tube 3032 can be configured to adjust the radial pressure on the sealing structure 3034. If the instrument tube 3032 is provided with a radial pressure adjusting mechanism, the radial pressure adjusting mechanism has a first state and a second state, and can switch between the first state and the second state; when the radial pressure adjusting mechanism is in the first state, the radial pressure between the instrument tube 3032 and the sealing structure 3034 can cause the sealing structure 3034 to radially contract, so that the channel 30341 closes and grips the drive wire 3035; when the radial pressure adjusting mechanism is in the second state, the sealing structure 3034 is allowed to radially expand, so that the channel 30341 opens and releases the drive wire 3035. There are various ways to implement the radial pressure adjustment mechanism, and this application is not limited to any particular method. For example, the inner diameter of the instrument tube 3032 at the location of the sealing structure 3034 can be adjusted by the radial pressure adjustment mechanism to increase or decrease the inner diameter at this location, thereby changing the pressure on the sealing structure 3034. Alternatively, a retractable radial pressure adjustment mechanism can be provided between the instrument tube 3032 and the sealing structure 3034, and the radial pressure between the instrument tube 3032 and the sealing structure 3034 can be adjusted by the extension and contraction (including deformation) of the radial pressure adjustment mechanism. The first state and the second state can be changes in shape and / or changes in size.

[0063] Figure 8 A non-limiting embodiment of the above radial pressure regulating mechanism is shown. For example... Figure 8 As shown, the instrument tube 3032 consists of a proximal instrument tube 30321 and a distal instrument tube 30322. The distal end of the proximal instrument tube 30321 and the proximal end of the distal instrument tube 30322 are loosely connected via the radial pressure adjustment mechanism. Therefore, by adjusting the tightness at the connection point between the distal end of the proximal instrument tube 30321 and the proximal end of the distal instrument tube 30322, the inner diameter of the instrument tube 3032 at that location can be changed, making the radial pressure on the sealing structure 3034 at that location variable. Further, the radial pressure adjustment mechanism includes a mating external tapered thread and an internal tapered thread. The external tapered thread is disposed on one of the proximal instrument tube 30321 and the distal instrument tube 30322, and the internal tapered thread is disposed on the other of the proximal instrument tube 30321 and the distal instrument tube 30322.

[0064] As in one embodiment, see [reference] Figure 6The distal inner wall of the proximal instrument tube 30321 has an annular notch with an internal tapered thread, and the proximal outer wall of the distal instrument tube 30322 has another annular notch with an external tapered thread. It can be understood that the distal inner wall of the proximal instrument tube 30321 refers to the circumferential wall (inner sidewall) of the distal end of the proximal instrument tube 30321, and the proximal outer wall of the distal instrument tube 30322 refers to the circumferential wall (outer sidewall) of the proximal end of the distal instrument tube 30322.

[0065] As in one embodiment, see [reference] Figure 8 The distal outer wall of the proximal instrument tube 30321 has an annular notch, and the annular notch of the proximal instrument tube 30321 has an external tapered thread. The proximal inner wall of the distal instrument tube 30322 has an annular notch, and the annular notch of the distal instrument tube 30322 has an internal tapered thread. Similarly, here, the distal outer wall of the proximal instrument tube 30321 refers to the outer wall of the distal end of the proximal instrument tube 30321 along its own circumference (i.e., the outer wall), and the proximal inner wall of the distal instrument tube 30322 refers to the inner wall of the proximal end of the distal instrument tube 30322 along its own circumference (i.e., the inner wall).

[0066] When the two parts of the instrument tube 3032 are connected by a tapered thread, not only is the sealing performance good, but the radial pressure adjustment is also simple and convenient. When the proximal instrument tube 30321 and the distal instrument tube 30322 are tightened together by the tapered thread, the orifice diameter of the instrument tube 3032 at the tapered thread connection position will slightly deform, causing the orifice diameter of the instrument tube 3032 to decrease, thereby compressing the sealing structure 3034 as a whole. When the proximal instrument tube 30321 and the distal instrument tube 30322 are loosened by the tapered thread, the orifice diameter of the instrument tube 3032 at the tapered thread connection position returns to its original shape, and the sealing structure 3034 also returns to its original shape.

[0067] The sealing structure 3034 can be configured as a short cylinder, and its outer diameter can be set according to the inner diameter of the instrument tube 3032. The axial length of the sealing structure 3034 should not be too long or too short. If it is too long, it will increase the difficulty of cleaning; if it is too short, it will not be able to ensure sealing (the channel cannot hold the transmission wire tightly). Preferably, the axial length of the sealing structure 3034 is 3 to 5 mm, such as 3 mm, 4 mm, or 5 mm.

[0068] Figure 9a and Figure 9b The status of a single channel 30341 is shown during normal operation and cleaning of the surgical instrument. For example... Figure 9bAs shown, when the radial pressure adjusting mechanism is loosened, that is, when the two parts of the instrument tube 3032 are loosened in a direction away from each other, the sealing structure 3034 expands and relaxes under its own elasticity. The orifice diameter of the channel 30341 is, for example, 1.0 mm, and the diameter of the transmission wire 3035 is, for example, 0.6 mm. There is a gap g between the transmission wire 3035 and the channel 30341, allowing a certain pressure of cleaning water to flow through the sealing structure 3034; Figure 9a As shown, when the radial pressure regulating mechanism is tightened, that is, when the two parts of the instrument tube 3032 are tightened towards each other, the channel 30341 contracts and grips the transmission wire 3035, thereby achieving a seal. Thus, during normal use of the surgical instrument 303, when the radial pressure regulating mechanism is in the first tightened state, the channel 30341 contracts and closes, gripping the transmission wire 3035. After the surgical instrument 303 is used, when the radial pressure regulating mechanism is in the second loosened state, the channel 30341 opens and returns to its original state. At this time, the cleaning water flow from the proximal end near the instrument box device 301 can pass through the gap g between the transmission wire 3035 and the channel 30341 to clean the surgical instrument 303.

[0069] <Example 2>

[0070] Figure 10 The image shows the state in which the sealing structure 3034 seals the instrument tube 3032 in Embodiment 2. Figure 11 The structure of the sealing structure 3034 in Embodiment 2 is shown. The following description focuses on the differences from Embodiment 1, while the same parts will not be described again and reference will be made to Embodiment 1.

[0071] The difference from Embodiment 1 is that in Embodiment 2, the channel 30341 of the sealing structure 3034 is deformable, and the opening and closing of the channel 30341 is controlled by the pressure exerted on the channel 30341 itself. In this case, the sealing structure 3034 as a whole can deform, or only the channel 30341 can deform. Another difference from Embodiment 1 is that the radial pressure adjustment mechanism of the sealing structure 3034 in Embodiment 2 can be omitted. For example, the instrument tube 3032 eliminates the proximal instrument tube 30321 and the distal instrument tube 30322, making the instrument tube 3032 a continuous single tube.

[0072] like Figure 10 and Figure 11As shown, the channel 30341 is directly configured as a through-hole structure, with an inlet end c and an outlet end d. When the pressure on the channel 30341 is less than a preset pressure value, the channel 30341 is in a closed state. In the closed state, the channel 30341 is shaped like a funnel, with the diameter of the inlet end c larger than the diameter of the outlet end d, so that the inlet end c does not contact the drive wire 3035, and the outlet end d completely grips the drive wire 3035 to achieve a seal. It should be understood that during normal use, the abdominal air pressure and the movement of the drive wire 3035 are insufficient to cause the sealing function of the channel 30341 to fail. However, during cleaning with a certain water pressure, if the pressure inside the channel 30341 is greater than the preset pressure value, the water pressure can cause the channel 30341 to expand. In the expanded state, the diameter of the outlet end d is larger than the diameter of the outlet end d in the closed state, so that the outlet end d loosens the drive wire 3035, allowing water to flow through and thus achieving the cleaning purpose. Taking medical-grade silicone as an example, the axial length of the sealing structure 3034 is 4mm. Under normal circumstances, the sealing structure 3034 tightly grips the transmission wire 3035. However, under water pressure impact of 2 bar or greater, the funnel-shaped opening of the channel 30341 will expand in the direction of water flow, enlarging the orifice diameter at the outlet end d of the channel 30341, thereby achieving the cleaning purpose. It should be noted that in the expanded state, the relative size of the orifice diameters at the inlet end c and the outlet end d of the channel 30341 is not subject to special requirements. For example, the orifice diameter at the inlet end c of the channel 30341 can be greater than, less than, or equal to the orifice diameter at the outlet end d.

[0073] Figure 12a and Figure 12b The status of a single channel 30341 is shown during normal operation and cleaning of the surgical instrument. For example... Figure 12a As shown, during normal use, the elasticity of channel 30341 ensures that the transmission wire 3035 is in close contact with channel 30341, achieving a seal. Figure 12b As shown, during the cleaning process, water flows from the proximal end to the distal end of the instrument. The water pressure causes the channel 30341 to open in the direction of the water flow, allowing water to pass through and thus achieving the cleaning purpose. In one embodiment, in both the closed and expanded states, the diameter of the inlet end c of the channel 30341 is always larger than the diameter of the outlet end d. Therefore, during normal use of the surgical instrument, the channel 30341 contracts under its own elasticity, tightly gripping the transmission wire 3035. After the surgical instrument is used, during the cleaning and sterilization process, the channel 30341 expands in the direction of the water flow under the impact of a certain pressure water flow, allowing water to pass through and ultimately completing the cleaning of the surgical instrument.

[0074] In this embodiment, the channel 30341 is directly configured as a through-hole structure, which is shaped with a larger upper portion and a smaller lower portion, meaning the diameter of the inlet end c is larger than the diameter of the outlet end d. Preferably, the diameter of the through-hole structure gradually increases from the distal end to the proximal end when in the open state. In this case, the channel 30341 is normally closed, and only changes from the normally closed state to the expanded state after being impacted by water flow.

[0075] <Example 3>

[0076] The following description focuses on the differences from Embodiment 1 and Embodiment 2, while the same parts will not be described again and reference will be made to Embodiment 1 and Embodiment 2.

[0077] The difference between this embodiment and embodiments two and one is that, in this embodiment three, the sealing structure 3034 is provided with a valve mounting hole, which is axially extending through the sealing structure. A valve is disposed within the valve mounting hole, and the valve is composed of multiple leaflets. The multiple leaflets disposed within the same valve mounting hole enclose the channel 30341. The valve has a fixed end and a movable end, and the movable end can open and close. In a specific embodiment, the valve mounting hole has a fixed end c and an outlet end d, with the fixed end of the valve disposed at the inlet end c and the movable end of the valve disposed at the outlet end d. It can be understood that one end of each leaflet is fixed within the valve mounting hole, while the other end is free to move, thus the movable end is formed by the combined enclosing of the other ends of multiple leaflets. Therefore, when the valve is not subjected to fluid pressure (i.e., water pressure), the movable end is in the closed state and holds the transmission wire 3035 tightly; when the valve is subjected to fluid pressure, the movable end moves from the closed state to the open state to release the transmission wire 3035. Thus, the opening and closing of the channel 30341 is achieved by means of the opening and closing of the valve. The valve material can be a mechanical valve or a biological valve. The material of a mechanical valve can be selected from titanium, titanium alloy, stainless steel, polymer materials, etc., while the material of a biological valve can be a bovine heart valve or a porcine heart valve, etc., and the specific material is not limited.

[0078] Understandably, the valve in this embodiment acts as a one-way valve. When no water flow enters from the inlet end c of the valve mounting hole, the valve converges and tightly wraps around the transmission wire 3035, keeping the channel 30341 sealed. During normal surgery, contaminants move along the transmission wire 3035 towards the proximal end of the instrument, but are prevented from continuing along the transmission wire 3035 by the converged valve. During cleaning, water flows from the proximal end to the distal end of the instrument. The water flow enters from the inlet end c of the valve mounting hole, impacting the valve and opening its movable end, thereby flushing out contaminants from the channel 30341. This reduces the difficulty of instrument cleaning and also reduces the risk of cross-infection. Similarly, the valve in this embodiment is normally closed, only changing from the normally closed state to the expanded state after being impacted by water flow.

[0079] Finally, the cleaning process of the surgical instruments provided in all embodiments of the present invention will be further described. In a non-limiting mode of operation, the cleaning process of the surgical instruments includes performing the following steps in sequence:

[0080] 1) Clean the surgical instruments in the instrument cleaning area; use a soft nylon brush to scrub the entire outer surface of the surgical instrument in running clean water, and rotate the wrist of the instrument at the distal end to clean the distal end of the surgical instrument from different angles for at least 2 minutes until the water in the surgical instrument is completely clear and there are no foreign objects visible on the surface.

[0081] 2) Use a high-pressure water gun to flush the instrument tubing for at least 2 minutes;

[0082] 3) While immersing the distal end of the surgical instrument in the ultrasonic water bath, inject at least 15 ml of enzyme-containing cleaning solution (3M multi-enzyme cleaning solution, diluted at a ratio of 1:100, recommended temperature 25℃~40℃) into the main irrigation port using a syringe, keeping the surgical instrument horizontal; the surgical instrument is completely immersed in the ultrasonic water bath containing the enzyme-containing cleaning solution for 30 minutes.

[0083] 4) After removing the surgical instruments, use a soft nylon brush to repeatedly scrub the surface and distal end of the surgical instruments for 2 minutes to avoid dirt residue; use a magnifying glass to check if they are clean, and repeat the scrubbing if necessary.

[0084] 5) Use a high-pressure water gun with a pressure ≥2 bar (29 psi) to re-rinse the main flush port and the remaining flush ports for ≥5 minutes;

[0085] 6) Next, use a high-pressure water gun to spray the distal end of the surgical instrument, ensuring that the distal end of the surgical instrument is facing down. During the spraying process, rotate the distal end of the surgical instrument by hand to ensure that all blood has been removed. The spraying time should be ≥5 minutes and the water gun pressure should be ≥2 bar (29 psi).

[0086] 7) After rinsing, place the surgical instruments into the ultrasonic bath, completely immersing them in the enzyme-containing cleaning solution. Set the ultrasonic time to 15 minutes and the power to 38 Hz for ultrasonic cleaning.

[0087] 8) Repeat the rinsing operation, following the same method as step 6);

[0088] 9) Repeat the scrubbing process, referring to step 2);

[0089] 10) Rinse the exterior of the surgical instruments with running water, including the connection between the shaft and the housing;

[0090] 11) You can choose moist heat sterilization (sterilization parameters: temperature: 85℃~93℃, time: 1~5 minutes) or directly use an air gun to blow dry the moisture inside the instrument cavity and wipe the surface dry;

[0091] 12) Check the cleaning quality and performance of the surgical instruments, verify the quantity, place the indicator card inside the package, put them in the special instrument box, and affix surgical instrument labels for packaging. After packaging, select high-pressure steam sterilization with the following parameters: pre-vacuum temperature of 134℃, minimum exposure time of 4 minutes, and average drying time of 30-50 minutes. The sterilization time can be set according to the instrument manufacturer's instructions or regulatory requirements, such as a maximum sterilization time of 18 minutes.

[0092] In summary, because the channel in the sealing structure of this invention can open and close, when the surgical instrument is in normal use, the closed channel can tightly hold the transmission component, thereby ensuring the sealing of the instrument tube. When the surgical instrument needs to be cleaned, the channel can loosen the transmission component, creating a gap between the transmission component and the channel, allowing water to flow through the gap from the proximal end to the distal end. This facilitates the cleaning of the surgical instrument, reduces the risk of cross-infection, and improves surgical safety.

[0093] It should be noted that those skilled in the art can make various improvements and additions without departing from the method of this invention, and these improvements and additions should also be considered within the scope of protection of this invention. Any modifications, alterations, and variations made by those skilled in the art without departing from the spirit and scope of this invention, based on the disclosed technical content, are equivalent embodiments of this invention; furthermore, any modifications, alterations, and variations made to the above embodiments based on the essential technology of this invention still fall within the scope of the technical solution of this invention.

Claims

1. An instrument tube device applied to a surgical instrument, the surgical instrument comprising an instrument tube and a tip instrument, the tip instrument being provided at a distal end of the instrument tube, the tip instrument being connected to a transmission member, the transmission member being used to drive the tip instrument to move, characterized in that, The instrument tube device comprises the instrument tube and a sealing structure; the sealing structure is arranged in the instrument tube and close to the distal end of the instrument tube; the sealing structure has a passage allowing the transmission member to pass through; The passage has a closed state and an open state and can switch between the closed state and the open state; The passage in the closed state can tightly hold the transmission member for sealing; the passage in the open state can release the transmission member for unsealing and form a gap between the transmission member and the passage.

2. The instrument tube device of claim 1, wherein, The sealing structure as a whole can deform, and the opening and closing of the passage are controlled by the radial pressure between the instrument tube and the sealing structure.

3. The instrument tube device of claim 2, wherein, The instrument tube is provided with a radial pressure adjusting mechanism, which has a first state and a second state and can switch between the first state and the second state; when the radial pressure adjusting mechanism is in the first state, the radial pressure between the instrument tube and the sealing structure can make the sealing structure radially contract to close the passage and tightly hold the transmission member; when the radial pressure adjusting mechanism is in the second state, the radial pressure between the instrument tube and the sealing structure allows the sealing structure to radially expand to open the passage and release the transmission member.

4. The instrument tube device of claim 3, wherein, The instrument tube is composed of a proximal instrument tube and a distal instrument tube, and the distal end of the proximal instrument tube is loosely connected to the proximal end of the distal instrument tube through the radial pressure adjusting mechanism.

5. The instrument tube device of claim 4, wherein, The radial pressure adjusting mechanism comprises a matching outer tapered thread and an inner tapered thread, the outer tapered thread is arranged on one of the proximal instrument tube and the distal instrument tube, and the inner tapered thread is arranged on the other one of the proximal instrument tube and the distal instrument tube.

6. The instrument tube device of claim 1, wherein, The passage itself can deform, and the opening and closing of the passage are controlled by the pressure on the passage itself.

7. The instrument tube device of claim 6, wherein, The passage has opposite inlet end and outlet end; When the pressure on the passage is less than a preset pressure value, the passage is in the closed state, and the aperture of the inlet end is larger than that of the outlet end, and the outlet end tightly holds the transmission member; When the pressure in the passage is greater than the preset pressure value, the passage changes from the closed state to the open state, and the aperture of the outlet end in the open state is larger than that in the closed state to release the transmission member.

8. The instrument tube device of claim 7, wherein, The aperture of the passage gradually increases from the distal end to the proximal end in the open state.

9. The instrument tube device of claim 1, wherein, The sealing structure is provided with a valve mounting hole, which is arranged through the axial direction of the sealing structure, a valve is arranged in the valve mounting hole, the valve is composed of a plurality of valve leaves, and the plurality of valve leaves arranged in the same valve mounting hole enclose to form the passage; the valve has opposite fixed end and movable end, and the movable end can be opened and closed; when the passage is in the closed state, the movable end of the valve tightly holds the transmission member; The active end of the valve releases the transmission member when the channel is in the open state.

10. The instrument tube device of claim 9, wherein, The valve mounting hole has opposite inlet and outlet ends, the fixed end of the valve is disposed at the inlet end, and the active end of the valve is disposed at the outlet end.

11. The instrument tube device of any of claims 1-10, wherein, The sealing structure has a plurality of channels, each of which is used for passing one of the transmission members.

12. A surgical instrument, characterized by The instrument tube device of any one of claims 1-11, wherein the instrument tube device further comprises an end instrument, and a distal end of the instrument tube of the instrument tube device is configured to hold the end instrument, and the end instrument is connected to a transmission member configured to drive the end instrument to move.

13. The surgical instrument of claim 12, wherein, The instrument tube device of any one of claims 1-11, wherein the instrument tube device further comprises an instrument box disposed at a proximal end of the instrument tube, and the instrument box comprises the transmission member, and the transmission member is connected to the end instrument after passing through the instrument tube and the sealing structure.

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