Telescopic pipe device with lubricating assembly

Abstract

The utility model provides a telescopic tube device with lubricating components, which comprises a telescopic sleeve, different sections of the telescopic sleeve are coaxially sleeved step by step and used for supporting intervention consumables, at least one section of the telescopic sleeve is provided with a first lubricating component, and the first lubricating component is used for filling lubricating liquid medicine. Lubricating liquid medicine enters the telescopic sleeve through a pipeline of the first lubricating assembly, so that the outer surface of the intervention consumable in the telescopic sleeve is lubricated. The outer surface of the interventional consumable in the telescopic sleeve can be lubricated, so that the friction force between the interventional consumable in the telescopic sleeve and the telescopic sleeve is reduced, the friction force interference is reduced, and an interventional surgical robot can conveniently sense the force of delivery resistance borne by the head end of the interventional consumable.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially a telescopic pipe device with lubricating assembly. BACKGROUND

[0002] Minimally invasive intervention therapy is the main treatment method for cardiovascular and cerebrovascular diseases. Under the guidance of a perspective image device, it uses interventional equipment to diagnose and treat diseases through physiological cavities, and has obvious advantages such as good curative effect, high safety, small incision, and short postoperative recovery time compared with traditional surgical operation.

[0003] In the process of vascular intervention surgery, the main steps include femoral artery / radial artery puncture, coordinated progression of guide wire and contrast catheter, digital subtraction angiography (DSA), coordinated progression of treatment guide wire and balloon catheter, and placement of vascular stent. In this surgery, the coordinated progression of guide wire, catheter and balloon catheter is a time-consuming link and needs to be carried out under the navigation of X-ray auxiliary image. The current vascular intervention surgery is usually completed manually by doctors. During the operation, the doctor needs to wear heavy lead clothes to complete the operation due to the X-ray emitted by DSA. The doctor's physical strength decreases rapidly, and the attention and stability also decrease, which will lead to a decrease in operation precision and easily cause accidents such as endovascular injury and vascular perforation caused by improper pushing force, which will endanger the patient's life. Moreover, long-term wearing of lead clothes will cause damage to the doctor's spine. Secondly, the accumulation of long-term ionizing radiation will greatly increase the probability of the doctor suffering from leukemia, cancer and acute cataract. Therefore, in order to protect the health of doctors and the quality of surgery, the research and development of interventional surgery robots are becoming more and more intense, and the robots that can be used in clinical application are increasing.

[0004] The existing interventional surgery robot mainly adopts a master-slave end operation structure to isolate the doctor from the radioactive environment. The existing interventional robot end device needs to hold the slender medical instruments such as catheter and guide wire and move them from the proximal end to the distal end. Through the coordinated movement of the device, the catheter and guide wire are driven to advance and delivered to the lesion in the patient's body (such as blood vessels) for the doctor to perform subsequent related treatment such as angiography, embolization of abnormal blood vessels, thrombolysis, and dilation of stenotic blood vessels.

[0005] At present, some interventional surgery robots adopt a telescopic tube guiding mode. The catheter or guide wire passes through the telescopic tube to limit the catheter or guide wire through the inner wall of the telescopic tube, which can effectively prevent the catheter or guide wire from bending to achieve the purpose of smoothly conveying the catheter or guide wire.

[0006] When the interventional consumable passes through the telescopic tube into the upper-level catheter, friction will be generated between the interventional consumable and the upper-level catheter, and friction will also be generated between the interventional consumable and the inner wall of the telescopic tube during the passing process, which affects the force perception of the head end of the interventional consumable by the interventional surgery robot. In order to reduce the interference of friction, the prior art needs to be improved to make the interventional consumable more smooth during delivery. Practical new type content

[0007] The utility model aims at providing a telescopic tube device with lubricating assembly to solve the technical defects and the technical requirements that cannot be achieved.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0009] A telescopic tube device with lubricating assembly, comprising

[0010] Telescopic sleeve, the different sections of telescopic sleeve are coaxial and are connected in stages, for supporting interventional consumable, at least one section of telescopic sleeve is equipped with first lubricating assembly, first lubricating assembly is used for filling lubricating liquid, the lubricating liquid enters the inside of telescopic sleeve through the pipeline of first lubricating assembly, thereby the outer surface of interventional consumable in telescopic sleeve is lubricated.

[0011] As preferred, each section or several sections of telescopic sleeve are equipped with connecting part, except the section of telescopic sleeve with the largest diameter, the connecting part on other sections of telescopic sleeve is arranged at the head end of the section, and first lubricating assembly is installed on the connecting part.

[0012] As preferred, when the adjacent two sections of telescopic sleeve gradually contract, the connecting parts of the adjacent two sections abut, or the connecting part of the former section abuts against the end face of the latter section, avoiding the complete insertion of the former section of telescopic sleeve into the latter section; the connecting part is a connecting block, the part where each section of telescopic sleeve is connected with the connecting block is provided with a first through hole, the connecting block is provided with a second through hole, the inner side of the hole wall of the second through hole is provided with a protrusion, when the second through hole of the connecting block cooperates with each section of telescopic sleeve, the protrusion of the connecting block extends into the first through hole, realizing the limiting between the section of telescopic sleeve and the corresponding connecting block, the protrusion is provided with an abutting part, the abutting part extends into the first through hole and abuts against the next section of telescopic sleeve, the abutting part has elasticity and can generate friction damping effect with the next section of telescopic sleeve, thereby realizing the sliding damping effect between different sections of telescopic sleeve.

[0013] As preferred, the telescopic sleeve realizes axial limiting through the first limiting structure arranged on the outer side of the tube body of telescopic sleeve, avoiding the complete disengagement of different sections in telescopic sleeve, and the first limiting structure is one or combination of pull rope structure, limiting telescopic sleeve, pull rod structure, connecting rod structure and bellows structure.

[0014] As preferred, the connecting part is provided with a lubricating channel in communication with the inside of the telescopic sleeve, the first lubricating assembly comprises a wetting container, the wetting container is arranged above the lubricating channel, the wetting container comprises a first cavity and a first channel in communication with the first cavity, the first channel is in communication with the lubricating channel, the first cavity is filled with lubricating liquid, the first cavity is provided with a first upper cover, the lubricating liquid enters the telescopic sleeve through the first channel and the lubricating channel, and the outer surface of the interventional consumable in the telescopic sleeve is lubricated.

[0015] As preferred, one section of the front end of the telescopic sleeve is provided with a first connecting part a connected with the telescopic sleeve locking mechanism, one section of the rear end of the telescopic sleeve is provided with a first connecting part b connected with the telescopic sleeve locking mechanism, the first connecting part a and / or the first connecting part b is provided with a lubricating channel in communication with the inside of the telescopic sleeve, and the wetting container is arranged on the lubricating channel. The outer circumferential surface of the first connecting part a and / or the first connecting part b is provided with an annular clamping groove.

[0016] As preferred, the first channel and / or the lubricating channel is provided with a flow control structure for controlling the flow rate of the lubricating liquid, and the flow control structure is an adjustable damper arranged on the inner wall of the first channel and / or the lubricating channel. The lubricating liquid flows through the adjustable damper to reduce the flow rate.

[0017] As preferred, the wetting container controls the flow of the lubricating liquid by gravity; the first upper cover is arranged above the first cavity in an openable manner, or the first upper cover is provided with a small hole, or the first upper cover is provided with a soft rubber isolation film. The operator injects the lubricating liquid into the small hole or the soft rubber isolation film by using a syringe, and then pulls out the needle. The first upper cover is used to prevent the lubricating liquid from flowing out.

[0018] As preferred, the telescopic sleeve is a telescopic variable rail pipe, one section of the last end of the telescopic sleeve and one section of the first end are respectively provided with a first bending structure and a second bending structure, the first bending structure is a first flexible pipe, the first flexible pipe is connected to the last section of the telescopic sleeve, the second bending structure is a second flexible pipe, the second flexible pipe is connected to the first section of the telescopic sleeve, the first flexible pipe, the telescopic sleeve and the second flexible pipe constitute the telescopic variable rail pipe, and the first flexible pipe and the second flexible pipe are respectively provided with locking parts at the ends away from the telescopic sleeve, which can be locked by external locking mechanisms.

[0019] As preferred, the telescopic sleeve is sleeved with a guide pipe for facilitating the smooth passage of the interventional consumable through the telescopic sleeve, one end of the guide pipe is in communication with the thinnest section of the telescopic sleeve, and the other end of the guide pipe extends towards the thickest section of the telescopic sleeve. The guide pipe is a flexible guide pipe, and the first lubricating assembly is mounted on the first flexible pipe and the second flexible pipe.

[0020] The utility model discloses beneficial effects as follows:

[0021] 1, the utility model discloses a telescopic sleeve's at least one section is equipped with first lubricating assembly, and first lubricating assembly is used for filling lubricating liquid, and lubricating liquid enters the inside of telescopic sleeve through the pipeline of first lubricating assembly, thereby the outer surface of the intervention consumable in telescopic sleeve is lubricated, makes the intervention consumable in telescopic sleeve and the friction between telescopic sleeve reduces, reduces the force perception of the delivery resistance that intervention surgery robot is received to intervention consumable head end.

[0022] 2, the utility model discloses that telescopic sleeve different section is coaxial and gradually covers the connection, and telescopic sleeve guides intervention consumable and keeps straight state, avoids intervention consumable and hits the bend, through setting the limit (rope structure, limit telescopic sleeve, pull rod structure, connecting rod structure, one or combination of bellows) in the outside of telescopic sleeve and not inside, as far as possible reduces the outer diameter difference between the different sections of telescopic sleeve, as far as possible increases the node number of telescopic sleeve under the condition of maximum outer diameter limit, thereby reduces the intervention consumable length that telescopic sleeve occupies under the condition of telescopic sleeve complete contraction, increases the effective use length of intervention consumable, guarantees the delivery effect of intervention consumable.

[0023] 3, first hose, telescopic sleeve and second hose constitute telescopic variable rail pipe, and one end of telescopic variable rail pipe is installed on the surgical function module of first linear rail group, and the other end of telescopic variable rail pipe is installed on the surgical function module of second linear rail group, and first linear rail group and second linear rail group are arranged in parallel or intersect, and telescopic variable rail pipe can guide intervention consumable on second linear rail group to first linear rail group, and play the variable rail guiding role. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The structure schematic drawing of setting first lubricating assembly for example 1 is provided;

[0025] Figure 2 The sectional view of setting first lubricating assembly for example 1 is provided;

[0026] Figure 3 The structure schematic drawing of when telescopic sleeve uses limit bellows to limit for example 1 is provided;

[0027] Figure 4 The structure schematic drawing of connecting limit rope between the connecting block on two adjacent sections of example 1 is provided;

[0028] Figure 5 The structure schematic drawing of when telescopic sleeve uses limit bellows to limit for example 1 is provided;

[0029] Figure 6 The structure schematic drawing of telescopic sleeve and connecting block when telescopic sleeve is completely contracted for example 1 is provided;

[0030] Figure 7 Fig. 1 is a schematic diagram of an overall structure of a connecting block of Example 1;

[0031] Figure 8 Fig. 2 is a schematic diagram of a structure of a right connecting block of Example 1;

[0032] Figure 9 Fig. 3 is a schematic diagram of a structure of a telescopic sleeve locking mechanism of Example 1;

[0033] Figure 10 Fig. 4 is a schematic diagram of a telescopic sleeve of Example 2 as a telescopic track-changing pipe;

[0034] Figure 11 Fig. 5 is a schematic diagram of an exploded structure of the telescopic track-changing pipe of Example 2;

[0035] Figure 12 Fig. 6 is a schematic diagram of a structure of a hinge support structure of Example 2. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] Example 1

[0040] A telescopic pipe device with a lubricating assembly, comprising

[0041] The telescopic sleeve 103302 is coaxially and step by step sleeved with different sections for supporting the intervention consumables, and at least one section of the telescopic sleeve 103302 is provided with a first lubricating assembly 103307 for filling lubricating liquid, and the lubricating liquid enters the inside of the telescopic sleeve 103302 through the pipeline of the first lubricating assembly 103307, so as to lubricate the outer surface of the intervention consumables in the telescopic sleeve 103302.

[0042] The telescopic sleeve 103302 is coaxially and step by step sleeved with different sections for supporting the intervention consumables, and at least one section of the telescopic sleeve 103302 is provided with a first lubricating assembly 103307 for filling lubricating liquid, and the lubricating liquid enters the inside of the telescopic sleeve 103302 through the pipeline of the first lubricating assembly 103307, so as to lubricate the outer surface of the intervention consumables in the telescopic sleeve 103302.

[0043] When the adjacent two sections of the telescopic sleeve 103302 are gradually contracted, the connecting parts of the adjacent two sections abut against each other, or the connecting part of the previous section abuts against the end surface of the next section, so as to avoid that the previous section of the telescopic sleeve 103302 is completely inserted into the next section; the connecting part is a connecting block, the part where each section of the telescopic sleeve 103302 is connected with the connecting block is provided with a first through hole, the connecting block is provided with a second through hole, the inner side of the hole wall of the second through hole is provided with a protrusion, when the second through hole of the connecting block is matched with each section of the telescopic sleeve 103302, the protrusion of the connecting block extends into the first through hole, so as to realize the limiting between the section of the telescopic sleeve 103302 and the corresponding connecting block, the protrusion is provided with an abutting part, the abutting part extends into the first through hole and abuts against the next section of the telescopic sleeve 103302, the abutting part has elasticity and can generate friction damping effect with the next section of the telescopic sleeve 103302, so as to realize the sliding damping effect between different sections of the telescopic sleeve 103302.

[0044] The telescopic sleeve 103302 is axially limited by the first limiting structure arranged outside the pipe body of the telescopic sleeve 103302, so as to avoid that different sections of the telescopic sleeve 103302 are completely separated, and the first limiting structure is one or a combination of a pull rope structure, a limiting telescopic sleeve, a pull rod structure, a connecting rod structure and a bellows structure.

[0045] The connecting part is provided with a lubricating channel 103306 in communication with the inside of the telescopic sleeve 103302, the first lubricating assembly 103307 comprises a wetting container, the wetting container is arranged above the lubricating channel 103306, the wetting container comprises a first cavity and a first channel in communication with the first cavity, the first channel is in communication with the lubricating channel 103306, the first cavity is filled with lubricating liquid, the first cavity is provided with a first upper cover, the lubricating liquid enters the telescopic sleeve 103302 through the first channel and the lubricating channel 103306, and the outer surface of the interventional consumable in the telescopic sleeve 103302 is lubricated.

[0046] The front end of the telescopic sleeve 103302 is provided with a first connecting part a 10330201 connected with the telescopic sleeve locking mechanism 10330203, the rear end of the telescopic sleeve 103302 is provided with a first connecting part b 10330202 connected with the telescopic sleeve locking mechanism 10330203, the first connecting part a 10330201 and / or the first connecting part b 10330202 is provided with a lubricating channel 103306 in communication with the inside of the telescopic sleeve 103302, and the wetting container is arranged on the lubricating channel 103306. The outer circumferential surface of the first connecting part a 10330201 and / or the first connecting part b 10330202 is provided with an annular clamping groove for locking connection of the telescopic sleeve locking mechanism 10330203.

[0047] The first channel and / or the lubricating channel 103306 is provided with a flow control structure for controlling the flow rate of the lubricating liquid, the flow control structure is an adjustable damper arranged on the inner wall of the first channel and / or the lubricating channel 103306, and the lubricating liquid flows through the adjustable damper to reduce the flow rate. The adjustable damper can be a threaded adjustable damper, and the opening degree of the fluid channel is adjusted by rotating the threaded structure.

[0048] The wetting container controls the flow of the lubricating liquid by gravity; the first upper cover is arranged above the first cavity and can be opened and closed, the first upper cover can be opened to directly inject the lubricating liquid, and then the first upper cover is closed to prevent the lubricating liquid from flowing out, or the first upper cover is provided with a small hole, or the first upper cover is provided with a soft rubber isolation film, the operator inserts a syringe into the small hole or the soft rubber isolation film to inject the lubricating liquid, and then pulls out the needle, the first upper cover is automatically sealed by the elasticity of the soft rubber isolation film to prevent the lubricating liquid from flowing out.

[0049] Specifically, as Figure 1 and Figure 2As shown, the first lubricating assembly 103307 is arranged on the part of the telescopic sleeve 103302 between the first port support mechanism 10271 and the first rotation transmission mechanism 10272, and the first lubricating assembly 103307 is internally provided with lubricating liquid, which slowly drips into the inside of the telescopic sleeve 103302, thereby lubricating the outer surface of the second catheter in the telescopic sleeve 103302, making the second catheter enter the first catheter more easily, and also reducing the friction between the second catheter and the inner wall of the telescopic sleeve, reducing the interference of friction force. Specifically, the connecting part on the part of the telescopic sleeve 103302 is provided with a lubricating channel 103306, and the first lubricating assembly 103307 is arranged on the lubricating channel 103306.

[0050] The first connecting part a 10330201 at the front end of the telescopic sleeve 103302 is locked on the telescopic sleeve locking mechanism 10330203 on the first port support mechanism 10271, and the first connecting part b 10330202 at the rear end of the telescopic sleeve 103302 is locked on the telescopic sleeve locking mechanism 10330203 on the front side of the first rotation transmission mechanism 10272, and the first lubricating assembly 103307 is arranged on the lubricating channel 103306 on the first connecting part a 10330201 and / or the first connecting part b 10330202, respectively.

[0051] The first lubricating assembly 103307 includes a first cavity 10330701 and a first pipeline 10330702 in communication with the first cavity, and the first pipeline is arranged inside the first connecting part a 10330201 and / or the first connecting part b 10330202. The first cavity is a reverse tapered structure, the first cavity is internally provided with lubricating liquid, and the first cavity is covered with a first cover. The lubricating liquid penetrates into the outer surface of the second catheter (the second catheter is a guide catheter) in the telescopic catheter through the first pipeline 10330702, thereby lubricating the outer surface of the second catheter.

[0052] When the telescopic sleeve 103302 adopts a pull rope structure or a bellows structure for limiting, the connecting part between the adjacent two sections of the telescopic sleeve 103302 is connected with a limiting pull rope or a limiting bellows, and the adjacent two sections of the telescopic sleeve 103302 are gradually lengthened while the limiting pull rope or the limiting bellows is gradually straightened. When the limiting pull rope or the limiting bellows is completely straightened, it can be avoided that the different sections of the telescopic sleeve 103302 completely separate, and when the previous section of the telescopic sleeve 103302 gradually inserts into the next section, the limiting pull rope is gradually bent, or the limiting bellows is gradually folded.

[0053] Specifically, as shown in FIG. 1, the telescopic sleeve 103302 is provided with a plurality of sections, and the adjacent two sections are connected with a limiting pull rope or a limiting bellows. Figures 3-8The connecting part is a connecting block 103302001, which includes a left connecting block 103302002 and a right connecting block 103302003, and the left connecting block 103302002 and the right connecting block 103302003 are connected and fixed by glue or screws or buckles, which is convenient and fast to install. During the installation process, only the left connecting block 103302002 and the right connecting block 103302003 need to be attached to the outside of the telescopic sleeve 103302 and fixedly connected. The left connecting block 103302002 and the right connecting block 103302003 of the present embodiment are fixed by screws. Each section of the telescopic sleeve 103302 is provided with a first through hole 103302004 in the radial direction thereof. The connecting block 103302001 is provided with a second through hole 103302005 in the axial direction. The inner side of the hole wall of the second through hole 103302005 is provided with a protrusion 103302006. The protrusion 103302006 is embedded in the first through hole 103302004 of different sections of the telescopic sleeve 103302, realizing reliable limiting of the connecting block 103302001 and different sections of the telescopic sleeve 103302. The protrusion 103302006 is provided with an abutting portion, which extends into the first through hole 103302004 and abuts against the next section of the telescopic sleeve 103302. The abutting portion has a certain elasticity and can produce a friction damping effect with the next section of the telescopic sleeve 103302, thereby realizing the sliding damping effect between different sections of the telescopic sleeve 103302 and avoiding the relative free rotation of different sections around the axis, which causes the limiting pull rope 103304 to be wound.

[0054] The telescopic sleeve assembly adopts telescopic sleeves 103302 of different sections. At least one pull wire group is arranged beside the telescopic sleeve 103302. When there are two or more pull wire groups, each pull wire group is arranged in an array around the telescopic sleeve 103302. Each pull wire group is provided with one or more limiting pull ropes 103304. The end of each section of the telescopic sleeve 103302 is fixedly connected with a connecting block 103302001. The limiting pull rope 103304 is located between two adjacent connecting blocks 103302001. The front and rear ends of the limiting pull rope 103304 are fixedly connected with the corresponding connecting blocks 103302001, respectively. The tightening of the limiting pull rope 103304 prevents the telescopic sleeves 103302 of different sections from completely separating. The connecting block 103302001 fixedly connected to the head end of each section of the telescopic sleeve 103302 can be used to avoid complete folding of different sections. The different sections of the telescopic sleeve 103302 are between complete separation and complete folding.

[0055] As Figure 4As shown, in order to enable full stretching and compression between different sections of the telescopic sleeve 103302, all the limiting pull ropes 103304 are perpendicular to the axis of the telescopic sleeve 103302 from the direction of the outgoing line on the connecting block 103302001. The limiting pull ropes 103304 can also be replaced by a chain structure.

[0056] The telescopic sleeve 103302 of different sections decreases in diameter from front to back. The end of the section of the telescopic sleeve 103302 with the largest diameter is provided with a first connecting block a 10330201, and the end of the corresponding limiting pull rope 103304 of the section of the telescopic sleeve 103302 is fixedly connected to the first connecting block a 10330201. The first connecting block a 10330201 is locked to the telescopic sleeve locking mechanism 10330203 of the external module. The end of the section of the telescopic sleeve 103302 with the smallest diameter is provided with a first connecting block b 10330202, and the end of the corresponding limiting pull rope 103304 of the section of the telescopic sleeve 103302 is fixedly connected to the first connecting block b 10330202. The first connecting block b 10330202 is locked to the telescopic sleeve locking mechanism 10330203 of the external module.

[0057] As an alternative, when the first limiting structure is a pull rope structure, the outer side of each section or several sections of the telescopic sleeve 103302 is provided with a protrusion (the protrusion replaces the connecting block). The protrusion can also achieve axial limiting, and the limiting pull rope 103304 is connected between the protrusions of adjacent two sections to avoid complete disengagement of different sections of the telescopic sleeve 103302.

[0058] As an alternative, as shown, Figure 5 When the telescopic sleeve 103302 adopts a bellows structure for limiting, the connecting part between adjacent two sections of the telescopic sleeve 103302 is connected with a limiting bellows 10330401. While the adjacent two sections of the telescopic sleeve 103302 are gradually lengthened, the limiting bellows 10330401 is also gradually straightened. When the limiting bellows 10330401 is completely straightened, complete disengagement of different sections of the telescopic sleeve can be avoided. While the previous section of the telescopic sleeve is gradually inserted into the next section, the limiting bellows 10330401 is also gradually folded.

[0059] As shown, Figure 9As shown, the telescopic sleeve locking mechanism includes two symmetrical opening and closing clamping jaws 1033020301, and the outer circumferential surface of the first connecting part a 10330201 and the first connecting part b 10330202 is respectively provided with an annular clamping groove. The two clamping jaws 1033020301 are folded and clamped into the annular clamping groove to clamp the first connecting part a 10330201 or the first connecting part b 10330202, and the clamping jaws 1033020301 are provided with magnets. The two clamping jaws 1033020301 are folded and clamped by the magnetic attraction force, which effectively prevents loosening. The first connecting part b 10330202 on one section of the rear end of the telescopic sleeve 103302 is arranged on the moving plate 1033020013 of the telescopic sleeve locking mechanism, the first rotating delivery mechanism 10272 is provided with a boss 1033020014, the boss 1033020014 is provided with a moving groove, and the moving plate 1033020013 can slide in the moving groove on the boss 1033020014, so as to adjust the distance between the moving plate 1033020013 and the first rotating delivery mechanism 10272, so as to adapt to the intervention of consumables with different joint lengths, and the boss 1033020014 is provided with a bolt 1033020015. After adjusting the moving plate 1033020013 to the appropriate position, tighten the bolt 1033020015 to fix the moving plate 1033020013. The bolt 1033020015 can be replaced by other forms of locking structure, such as buckle.

[0060] Embodiment 2

[0061] The same parts of this embodiment and embodiment 1 will not be described again, and the difference is:

[0062] The end of the last section and the end of the first section of the telescopic sleeve are respectively provided with a first bending structure and a second bending structure. The first bending structure is a first hose, and the first hose is connected to the last section of the telescopic sleeve. The second bending structure is a second hose, and the second hose is connected to the first section of the telescopic sleeve. The first hose, the telescopic sleeve and the second hose constitute a telescopic variable rail pipe. The first hose and the second hose are respectively provided with a locking part at the end away from the telescopic sleeve, and the locking part can be locked by an external locking mechanism.

[0063] The telescopic sleeve is axially limited by the first limiting structure arranged outside the pipe body of the telescopic sleeve, so as to avoid that different sections in the telescopic sleeve are completely separated. The first limiting structure is one or a combination of a pull rope structure, a limiting telescopic sleeve, a pull rod structure, a connecting rod structure and a bellows structure.

[0064] Each section or several sections of the telescopic sleeve are provided with a connecting part, and the first lubricating assembly is installed on the connecting part.

[0065] In this embodiment, one end of the telescopic rail-changing tube is arranged on the second port control module on the first linear rail group, and the other end of the telescopic rail-changing tube is arranged on the front end of the third clamping and rotating mechanism on the second linear rail group. The telescopic rail-changing tube also functions as a rail changer to guide the interventional consumables on the second linear rail group to the first linear rail group.

[0066] The second port control module is provided with a first rail-changing part locking mechanism (equivalent to an external locking mechanism), which can lock the front end of the telescopic rail-changing tube. The third clamping and rotating mechanism is provided with a second rail-changing part locking mechanism (equivalent to an external locking mechanism), which can lock the rear end of the telescopic rail-changing tube. The first rail-changing part locking mechanism and the second rail-changing part locking mechanism are in the form of a clamp structure, a lock structure, a magnetic attraction structure or a compression structure.

[0067] Specifically, as shown in Figures 10-12 The first linear rail group is provided with a second port control module, and the second linear rail group is provided with a third rotating and delivering mechanism 10276.

[0068] The second port control module is provided with a bifurcated valve, and the rear of the bifurcated valve is provided with a first bifurcated module 10271001. One branch of the first bifurcated module is connected to the third rotating and delivering mechanism 10276 through a telescopic rail-changing tube, which is used to support the interventional consumables. The telescopic rail-changing tube comprises a telescopic sleeve 103302 which is rigid and coaxial and is connected step by step.

[0069] The telescopic sleeve 103302 is provided with a connecting block 103302001 at the head end of each section. Each section of the telescopic sleeve 103302 is provided with a stop structure to prevent the telescopic sleeve from completely separating. The thickest section and the thinnest section of the telescopic sleeve 103302 are respectively provided with one end of a first flexible pipe 1033020021 and a second flexible pipe 1033020022. The other end of the first flexible pipe 1033020021 is clamped by the second rail-changing part locking mechanism of the third rotating and delivering mechanism 10276, and the other end of the second flexible pipe 1033020022 is clamped by the first rail-changing part locking mechanism of the bifurcated module 10271001. The first rail-changing part locking mechanism and the second rail-changing part locking mechanism are in the form of a clamp structure.

[0070] Further, the first hose 10330200201 and the second hose 10330200202 are respectively provided with a hinge support structure 10330200203, the hinge support structure 10330200203 comprises a first hinge plate 103302002031 and a second hinge plate 103302002032, one end of the first hinge plate 103302002031 and the second hinge plate 103302002032 are hinged to each other, the other end of the first hinge plate 103302002031 and the second hinge plate 103302002032 are respectively fixedly connected with a limiting sleeve 103302002033, the limiting sleeve 103302002033 is sleeved outside the first hose 10330200201 or the second hose 10330200202, can guide the bending direction of the first hose 10330200201 or the second hose 10330200202, avoid excessive bending, prevent the first hose 10330200201 or the second hose 10330200202 from being broken, when the material hardness of the first hose 10330200201 or the second hose 10330200202 is relatively hard, the hinge support structure 10330200203 can also not be provided.

[0071] In order to avoid the intervention consumables from being stuck on the end face between different sections of the telescopic sleeve 103302 when being inserted from the front end or the rear end of the telescopic sleeve 103302, a guide pipe 1033020031 is sleeved in the telescopic sleeve 103302, which is convenient for the intervention consumables to smoothly pass through the telescopic sleeve, one end of the guide pipe 1033020031 communicates with the thinnest section of the telescopic sleeve 103302, and the other end of the guide pipe 1033020031 extends towards the thickest section of the telescopic sleeve, the guide pipe 1033020031 is a flexible guide pipe, and the first lubricating assembly is installed on the first hose and the second hose.

[0072] When the telescopic sleeve 103302 is in a fully contracted state, the other end of the guide pipe 1033020031 is not more than 10mm away from the rear end of the first hose 10330200201, at this time the operator can directly insert the intervention consumables from the other end of the guide pipe 1033020031, under the guidance of the flexible guide pipe 1033020031, the intervention consumables can smoothly pass through the telescopic sleeve 103302 without being stuck between different sections of the telescopic sleeve 103302.

[0073] Alternatively, the operator can directly insert the intervention consumables from the inlet end of the second hose 10330200202, under the guidance of the flexible guide pipe 1033020031, the intervention consumables can smoothly pass through the telescopic sleeve 103302 without being stuck.

[0074] The first lubricating assembly is installed on the connecting block and / or the locking part and / or the first hose and / or the second hose, and can lubricate the outer surface of the intervention consumable in the telescopic rail-changing pipe.

[0075] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A telescopic tube device with a lubricating assembly, characterized in that, The invention relates to a telescopic sleeve, which comprises coaxially and step by step sleeved different sections for supporting intervention consumables, at least one section of the telescopic sleeve is provided with a first lubricating assembly for filling lubricating liquid, the lubricating liquid enters the inside of the telescopic sleeve through the pipeline of the first lubricating assembly, thereby lubricating the outer surface of the intervention consumables in the telescopic sleeve. Each section or several sections of the telescopic sleeve is provided with a connecting part, except for the section with the largest diameter on the telescopic sleeve, the connecting part on other sections of the telescopic sleeve is arranged at the head end of the section, and the first lubricating assembly is installed on the connecting part.

2. A retractable tube device with a lubricating assembly according to claim 1, characterized in that When the two adjacent sections of the telescopic sleeve are gradually contracted, the connecting parts of the two adjacent sections abut or the connecting part of the previous section abuts against the end surface of the next section, thereby avoiding the complete insertion of the previous section of the telescopic sleeve into the next section; the connecting part is a connecting block, the part where each section of the telescopic sleeve is connected with the connecting block is provided with a first through hole, the connecting block is provided with a second through hole, the inner side of the hole wall of the second through hole is provided with a protrusion, when the second through hole of the connecting block is matched with each section of the telescopic sleeve, the protrusion of the connecting block extends into the first through hole, thereby achieving the limiting between the section of the telescopic sleeve and the corresponding connecting block, the protrusion is provided with an abutting part, the abutting part extends into the first through hole and abuts against the next section of the telescopic sleeve, and the abutting part has elasticity.

3. A retractable tube device with a lubricating assembly according to claim 2, wherein, The telescopic sleeve is axially limited by the first limiting structure arranged outside the pipe body of the telescopic sleeve, thereby avoiding the complete disengagement of different sections of the telescopic sleeve, and the first limiting structure is one or a combination of a pull rope structure, a limiting telescopic sleeve, a pull rod structure, a connecting rod structure and a bellows structure.

4. A retractable tube device with a lubricating assembly according to claim 1, wherein, The connecting part is provided with a lubricating channel in communication with the inside of the telescopic sleeve, the first lubricating assembly comprises a wetting container, the wetting container is arranged above the lubricating channel, the wetting container comprises a first cavity and a first channel in communication with the first cavity, the first channel is in communication with the lubricating channel, the first cavity is filled with lubricating liquid, the first cavity is covered with a first upper cover, the lubricating liquid enters the inside of the telescopic sleeve through the first channel and the lubricating channel, thereby lubricating the outer surface of the intervention consumables in the telescopic sleeve.

5. A retractable tube device with a lubricating assembly according to claim 2, wherein, One section at the front end of the telescopic sleeve is provided with a first connecting part a connected with the telescopic sleeve locking mechanism, one section at the rear end of the telescopic sleeve is provided with a first connecting part b connected with the telescopic sleeve locking mechanism, the first connecting part a and / or the first connecting part b is provided with a lubricating channel in communication with the inside of the telescopic sleeve, and the wetting container is arranged on the lubricating channel; the outer circumferential surface of the first connecting part a and / or the first connecting part b is provided with an annular clamping groove.

6. A retractable tube device with a lubricating assembly according to claim 5, wherein, The first channel and / or the lubricating channel is provided with a flow control structure for controlling the flow rate of the lubricating liquid, and the flow control structure is an adjustable damper arranged on the inner wall of the first channel and / or the lubricating channel, so that the lubricating liquid flows through the adjustable damper to reduce the flow rate.

7. A retractable tube device with a lubricating assembly according to claim 5, wherein, The wetting container controls the flow of the lubricating liquid by gravity; the first upper cover is arranged above the first cavity in an openable manner, or the first upper cover is provided with a small hole, or the first upper cover is provided with a soft rubber isolation film.

8. A retractable tube device with a lubricating assembly according to claim 5, wherein, ​ 9. A retractable tube device with a lubricating assembly according to claim 1, wherein, The end of the last section and the end of the first section of the telescopic sleeve are respectively provided with a first bending structure and a second bending structure, the first bending structure is a first hose connected to the last section of the telescopic sleeve, the second bending structure is a second hose connected to the first section of the telescopic sleeve, the first hose, the telescopic sleeve and the second hose constitute a telescopic variable track pipe, and the first hose and the second hose are respectively provided with a locking part at the end away from the telescopic sleeve, which can be locked by an external locking mechanism.

10. A retractable tube device with a lubricating assembly according to claim 9, wherein, The telescopic sleeve is sleeved with a guide pipe for facilitating the smooth passage of the interventional consumables through the telescopic sleeve, one end of the guide pipe communicates with the thinnest section of the telescopic sleeve, and the other end of the guide pipe extends towards the thickest section of the telescopic sleeve, the guide pipe is a flexible guide pipe, and the first lubricating assembly is installed on the first hose and the second hose.

Images