Bending structure of plugging device and plugging device

Abstract

The utility model provides an occluder bending structure and an occluder, and relates to the technical field of medical instruments.The occluder bending structure comprises a connecting pipe, a fixing block, a hose, an inflation pipe, a wrapping catheter, a supporting pipe and a bronchial catheter, and the connecting pipe is provided with a hose imbedding end, an insertion section, a supporting pipe cavity and an inflation cavity; an inflation tube connecting hole and a supporting tube connecting hole are formed in the hose. According to the scheme, the bending structure of the plugging device is simple in structure process, can be achieved through welding, bonding and other processes, is low in achieving difficulty and cost and can be used for low-value consumables; the overall structure of the adjusting structure is light, the overall mass of the plugging device is slightly increased, catheter indwelling is not affected, or the cuff is not displaced, the adjusting structure is small and exquisite, operation can be conducted with one hand, and the purpose of setting the adjusting angle is achieved by rotating the adjusting angle and arranging a clamping ball and a clamping groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially plugging ware bending structure and plugging ware. BACKGROUND

[0002] At present, the adjustable plugging products on the market, the front end bending structure is mainly realized through the snake bone, multi-section catheter, segmented braiding and the like, and these technologies mainly have the following problems: (1) the snake bone and segmented catheter and the like can achieve good front end bending effect, but the cost is relatively high due to the high precision; (2) different material catheters are welded together by using ultrasonic welding process, but since both sections of the catheter have inflation cavities, the inflation cavities need to be aligned together after welding, so the operation is difficult; (3) the segmented braiding method needs to extrude a long multi-cavity hose first, and then braids of different densities are carried out outside the multi-cavity hose, and the front end and the rear end need to have different hardnesses to achieve the bending purpose, which is difficult for the integrated braided catheter, and the braided section and the non-braided section exist alternately, which will lead to many processes and complex operation.

[0003] In addition, there are many bending mechanisms on the market at present, most of which are used in soft mirrors and hard mirrors. Such structures usually occupy a large part of the product, and the structure is not small and light enough. In actual application process, such structure is usually at the tail end of the plugging bronchial cannula, and due to the fact that it is not small and light enough, it has a certain weight, which will make the tail end drop, affect the cannulation, and also increase the risk of displacement during the operation process, which makes it difficult to apply such structure in the plugging bronchial cannula.

[0004] In view of the above defects, the present application is proposed. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a plugging ware bending structure and plugging ware, providing a front end bending structure for plugging ware with low cost and low realization difficulty, solving the problems of high cost and great production difficulty of the bending structure in the prior art.

[0006] In order to solve the above problems, the utility model provides a plugging device bending structure, including link pipe, fixed block, hose, inflation pipe, cladding catheter, support pipe and bronchial catheter, the link pipe has hose end, insertion section, support pipe cavity and inflation cavity, the insertion section is used for connecting with bronchial catheter, the inflation cavity is inserted for inflation pipe, the support pipe cavity is provided with at least two groups, is inserted for support pipe, one end of the hose is connected with hose end, the fixed block is arranged at the other end of the hose, the inflation pipe is successively inserted into inflation cavity and inflation pipe connecting hole, the support pipe is successively inserted into support pipe cavity and support pipe connecting hole, the support pipe is used for adjusting wire to pass through, the fixed block is used for with adjusting wire connection, the cladding catheter is covered in link pipe, hose and fixed block outside, forms the bending section, and the hose can adjust bending direction and bending degree under the action of adjusting wire, can pass through the length of control hose end, and the hardness of adjusting hose reaches the purpose of adjusting bending radius.

[0007] Preferably, the support pipe and the inflation pipe are externally smeared with glue before installation.

[0008] According to an embodiment of the utility model, the plugging device bending structure further comprises a plug, the plug is covered at the end position of the plugging device bending structure, achieving a protection effect and preventing damage to the patient during insertion.

[0009] According to an embodiment of the utility model, the inflation cavity is provided with one or several groups, and the number of the groups is adaptively set according to the number of the installed cuff.

[0010] According to an embodiment of the utility model, the link pipe is made of metal material, and can also be made of other materials with a hardness greater than that of the hose.

[0011] The plugging device comprises a portable single-handed adjustable bending structure, solving the problem of complex adjustment structure and inconvenient operation in the prior art.

[0012] The plugging device comprises the plugging device bending structure, the adjustment structure and the cuff described above, the cuff is installed on the cladding catheter, the inside of the cuff is connected with the inflation pipe connecting hole, the connection is realized by punching the inflation pipe connecting hole, the adjustment structure comprises an adjusting wire and a knob, the adjusting wire is provided with at least two groups and passes through the two groups of support pipes respectively, one end of the adjusting wire is connected with the fixed block, and the other end is connected with the knob, rotating the knob can pull the adjusting wire, and the bending adjustment of the plugging device bending structure is realized.

[0013] According to an embodiment of the utility model, the adjustment structure further comprises an adjustment plug installed on the bronchial catheter, the knob is rotatably installed on the adjustment plug, and the adjustment plug is provided with a wire hole for the adjusting wire to pass through and a wire winding groove for the adjusting wire to pass around.

[0014] According to an embodiment of the utility model, a plurality of clamping grooves are arranged on the adjusting plug, a plurality of clamping balls are arranged on the knob, when the knob rotates to the set position, the clamping ball can enter the clamping groove.

[0015] Preferably, the clamping groove and the clamping ball are arranged in the circumferential direction, which is used to achieve the effect of positioning the angle.

[0016] According to an embodiment of the utility model, a limiting strip is arranged on the adjusting plug, and the limiting strip is used to limit the maximum rotation angle of the knob.

[0017] According to an embodiment of the utility model, the adjusting wire is fixed on the knob through a bolt.

[0018] According to an embodiment of the utility model, the knob and the adjusting plug adopt a split assembly structure, which is convenient for assembly.

[0019] According to an embodiment of the utility model, a convex structure is arranged outside the knob, so that the knob has a better hand feeling during rotation and can prevent sliding.

[0020] The utility model discloses a plugging device bending structure structure craft, relatively simple, can realize through welding, bonding and other crafts, realizes the difficulty to be smaller, and the cost is lower, can be used in low -value consumable, realizes the support effect through the support pipe, can prevent the bronchial catheter from bending in the bending angle process, the hose structure does not limit the bending radius, can reach the purpose of adjusting the bending radius through the length of hose placement end and the hardness of adjusting hose, the plugging device of this mode realizes the pipe -in -pipe or pipe -out -pipe, and the process does not need the guiding of fiber bronchoscope.

[0021] The structure of the adjusting structure is relatively light, and the overall quality of the plugging device is increased little, so that the pipe placement is not affected or the cuff is not displaced, and the structure is small and can be operated by one hand, the angle is adjusted by rotating, the clamping ball and the clamping groove are arranged to reach the purpose of setting the adjusting angle. DRAWINGS

[0022] The utility model will be further explained in connection with the drawings and examples.

[0023] Figure 1 It is the structural schematic diagram of the adapter pipe;

[0024] Figure 2 It is the structural schematic diagram of the fixed block;

[0025] Figure 3 It is the structural schematic diagram of the plug;

[0026] Figure 4 It is the structural schematic diagram of the hose.

[0027] Figure 5 is a schematic view of the structure of the trachea;

[0028] Figure 6 is a schematic view of the structure of the sheathed catheter;

[0029] Figure 7 is a schematic view of the structure of the support tube;

[0030] Figure 8 is a sectional view of the bronchial catheter;

[0031] Figure 9 is a schematic view of the structure of the obturator bend;

[0032] Figure 10 is a winding diagram of the adjustment structure;

[0033] Figure 11 is an assembly diagram of the adjustment structure;

[0034] Figure 12 is an exploded view of the adjustment structure;

[0035] Figure 13 is a schematic view of the structure of the sub-knob one;

[0036] Figure 14 is a schematic view of the structure of the adjustment plug;

[0037] Figure 15 is a schematic view of the structure of the sub-knob two;

[0038] Figure 16 is a schematic view of the structure of the protrusion;

[0039] Figure 17 is a schematic view of the structure of the obturator. DETAILED DESCRIPTION

[0040] The following description is merely intended for the purpose of illustrating the present application and is not intended to limit the present application in any way. Since those skilled in the art can be practiced other obvious modifications and changes based on the following description, the basic principles defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other schemes not departing from the spirit and scope of the present application.

[0041] The obturator bend 902, as shown in Figures 1-9 , comprises a connector tube 1, a fixed block 2, a plug 3, a hose 4, an inflation tube 5, a sheathed catheter 6, a support tube 7, and a bronchial catheter 9.

[0042] The adapter pipe 1 is preferably made of metal, and can also be made of other materials with a hardness greater than that of the hose 4. The adapter pipe 1 has a hose insertion end 1-3, an insertion section 1-2, a support pipe cavity 1-1, and an inflation cavity 1-4. The support pipe cavity 1-1 is provided in two groups and symmetrically arranged for insertion of the support pipe 7. The insertion section 1-2 is used for connection with the bronchial catheter 9. The inflation cavity 1-4 is used for insertion of the inflation pipe 5. One end of the hose 4 is connected to the hose insertion end 1-3. The fixing block 2 is arranged at the other end of the hose 4.

[0043] The hose 4 is provided with an inflation pipe connecting hole 4-1 and a support pipe connecting hole 4-2. The inflation pipe 5 is sequentially inserted into the inflation cavity 1-4 and the inflation pipe connecting hole 4-1. The support pipe 7 is sequentially inserted into the support pipe cavity 1-1 and the support pipe connecting hole 4-2. The support pipe 7 is used for passing the adjustment wire.

[0044] The fixing block 2 is used for connection with the adjustment wire and is provided with a fixing position 2-1 and a fixing position 2-3. The adjustment wire is passed out of the head end of the hose 4 through the support pipe 7, and then is fixed on the fixing position 2-1 and the fixing position 2-3 by welding, wire binding, or other processes.

[0045] The covering catheter 6 covers the adapter pipe 1, the hose 4, and the fixing block 2 to form a complete curved section. The plug 3 is covered at the front end position of the curved section, i.e., the outside of the fixing block 2, to achieve a protection effect and prevent damage to the patient during placement. The plug 3 is provided with a through hole 3-1. The hose 4 can adjust the bending direction and the bending degree under the action of the adjustment wire. The length of the hose insertion end 1-3 and the hardness of the hose 4 can be controlled to achieve the purpose of adjusting the bending radius.

[0046] Optionally, the inflation cavity 1-4 is provided with one or more groups and is adaptively arranged according to the number of installed cuffs.

[0047] Assembly process: insert the insertion section 1-2 into the ventilation cavity 9-1 of the bronchial catheter 9, apply glue to the outside of the inflation tube 5, and insert it into the catheter inflation cavity along the inflation cavity 1-4, ensuring that the end face is not higher than the hose insertion end 1-3; apply glue to the outside of the two support tubes 7, then insert them into the bronchial catheter adjustment cavity 9-1 along the support tube cavity 1-1, ensuring that the end face is not higher than the hose insertion end 1-3; insert the hose 4 into the hose insertion end 1-3, ensuring that the inflation tube 5 is inserted into the inflation tube connection hole 4-1 and the support tube 7 is inserted into the support tube connection hole 4-2. The adjustment wire is pulled out of the hose 4 head through the support tube 7, and then the adjustment wire is fixed on the fixed position 2-1 and the fixed position 2-3 using welding, binding and other processes; use the expanding agent to make the covering catheter 6 expand, then cover the whole section of the front end structure, then punch the inflation tube connection hole 4-1 of the hose, and then bond the cuff 8 on the covering catheter 6. Finally, the plug 3 covers the most front end position to prevent damage to the patient during placement, and the inflation tube 5 and the support tube 7 are inserted into the corresponding channels in the bronchial catheter 9.

[0048] By using a special connection structure, the hard PA catheter, i.e. the bronchial catheter 9, is connected with the front-end hose 4, and a capillary is used to connect the inflation cavities of the two catheters, which are sealed with glue. At the same time, a fixed block 2 is provided at the front end, and the adjustment wire is fixed on the fixed block 2 by welding or other methods, and the fixed block 2 is bonded on the front-end surface of the hose 4 by glue to achieve the fixing effect. Finally, a layer of silicone hose, i.e. the covering catheter 6, is wrapped outside to cover these structures to prevent the patient's airway from being scratched by edges; then holes are punched on the front-end hose and the silicone hose; finally, the cuff is bonded on the silicone hose.

[0049] During use, the length of the adjustment wire changes by control, which generates a force on the bronchial catheter, causing the bronchial catheter to bend. By inserting the support tube 7 into the bronchial catheter and fixing it, the support tube 7 can well solve this problem.

[0050] The occluder 901, such as Figures 10-17 , includes the occluder bending structure, the adjustment structure 903 and the cuff 8 described above.

[0051] The cuff 8 is installed on the covering catheter 6, and the inside of the cuff 8 is connected with the inflation tube connection hole 4-1, which is realized by punching the inflation tube connection hole 4-1.

[0052] The adjustment structure 903 includes an adjustment wire, a knob and an adjustment plug, both of which are of a split assembly structure, which is convenient for assembly.

[0053] The knob comprises two groups of semicircular sub-knobs, namely sub-knob one 10 and sub-knob two 30, which are assembled together by buckle 103 and slot 301 to form a complete knob.

[0054] Preferably, the knob is externally provided with a convex structure 304, so that the knob has a better hand feeling during rotation and can prevent sliding.

[0055] The adjustment plug 20 is fixedly installed on the bronchial catheter 9, and the adjustment plug 20 is divided into two halves and assembled on the outer circle of the bronchial catheter 9 through plug buckle 203 and hole 206. The adjustment plug 20 is provided with wire hole 204 for the adjustment wire to pass through and winding slot 205 for the adjustment wire to pass around, and the knob is rotatably installed on the adjustment plug 20.

[0056] The adjustment plug 20 is provided with a plurality of clamping grooves 202, and the knob is provided with a plurality of clamping balls 102. When the knob is rotated to a set position, the clamping balls 102 can enter the clamping grooves 202. The clamping grooves 202 and the clamping balls 102 are arranged in the circumferential direction, which is used to achieve the effect of positioning the angle. The adjustment plug 20 is provided with a limiting strip 207, which is used to limit the maximum rotation angle of the knob.

[0057] The adjustment wires 40 and 50 are respectively passed out from the left and right wire holes 204 and fixed in the knob. The length of the adjustment wire is controlled by rotating the knob to achieve the purpose of adjusting the angle. At the same time, due to the design of the clamping balls 102 and the clamping grooves 202, the purpose of controlling the angle can be achieved. The size of the clamping ball 102 can be adjusted, and the size and position of the clamping groove 202 can be adjusted to achieve the purpose of setting the adjustment angle. The clamping ball 102 can be moved left and right to the nearest clamping groove 202 of the limiting strip 207 to achieve the purpose of limiting.

[0058] Adjustment principle: the adjustment wire 50 passes through the left wire hole 204, passes above the winding slot 205, and is fixed in the right threaded hole 101 through the right guide slot 104 with a M1 self-tapping screw; similarly, the adjustment wire 40 passes through the right wire hole 204, passes above the winding slot 205, and is fixed in the left threaded hole 101 through the left guide slot 104 with a M1 self-tapping screw. In this way, when the adjustment knob is rotated to the left (within 1 turn), the adjustment wire 40 is pulled and the adjustment wire 50 is loosened, and the front end of the occluder bending structure bends to the right; when the adjustment knob is rotated to the right (within 1 turn), the adjustment wire 50 is pulled and the adjustment wire 40 is loosened, and the front end of the occluder bending structure bends to the left.

[0059] The adjustment mechanism in this solution, through its ingenious structural design, achieves all its intended performance with fewer components, resulting in a compact overall structure. The adjustment knobs can be adjusted directly without pressing or pulling, allowing doctors to adjust with one hand in practical applications. A special winding method (…) Figure 10 As shown, when the adjustment knob is rotated 90°, the length of the adjusting wire can be adjusted by at least 1 / 4 of the circumference of the 205 groove, depending on the diameter of the groove in the adjustment plug 20 (the larger the diameter, the longer the adjustable wire). Taking a snake bone with a length of 40mm and a diameter of 2.5mm as an example, it can be adjusted left and right from 0 to 160°. A locking ball 102 is set on the adjustment plug. By cooperating with the locking groove 202, it can achieve the purpose of self-locking. Since the plane 207 where the locking groove 202 is located is lower than the plane where the limiting strip 208 is located, the locking ball 102 can move left and right to the locking groove 202 closest to the limiting strip 208 to achieve the purpose of limiting. After adjusting to the appropriate angle, it can automatically lock and the angle will not change, which increases the reliability of sealing.

[0060] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. Occluder bending structure, characterized by: The adapter tube (1) has a soft tube insertion end (1-3), an insertion section (1-2), a support tube cavity (1-1) and an inflation cavity (1-4), the insertion section (1-2) is used for connecting with the bronchial catheter (9), the support tube cavity (1-1) is provided with at least two groups, one end of the soft tube (4) is connected with the soft tube insertion end (1-3), the fixing block (2) is arranged at the other end of the soft tube (4), the soft tube (4) is provided with an inflation tube connecting hole (4-1) and a support tube connecting hole (4-2), the inflation tube (5) is sequentially inserted into the inflation cavity (1-4) and the inflation tube connecting hole (4-1), the support tube (7) is sequentially inserted into the support tube cavity (1-1) and the support tube connecting hole (4-2), the support tube (7) is used for passing the adjusting wire, the fixing block (2) is used for connecting with the adjusting wire, the cladding catheter (6) is cladded outside the adapter tube (1), the soft tube (4) and the fixing block (2).

2. The occluder bend structure of claim 1, wherein: The occluder bending structure further comprises a plug (3) cladded at the end position of the occluder bending structure.

3. The occluder bend structure of claim 1, wherein: The inflation cavity (1-4) is provided with one or more groups.

4. The occluder bend structure of claim 1, wherein: The adapter tube (1) is made of metal.

5. An occluder characterized by: The occluder bending structure, the adjusting structure and the cuff (8) of any one of claims 1-4 are further provided, the cuff (8) is mounted on the cladding catheter (6), the inside of the cuff (8) is connected with the inflation tube connecting hole (4-1), the adjusting structure comprises an adjusting wire and a knob, the adjusting wire is provided with at least two groups and passes through two groups of support tubes (7) respectively, one end of the adjusting wire is connected with the fixing block (2) and the other end is connected with the knob, rotating the knob can pull the adjusting wire to realize the bending adjustment of the occluder bending structure.

6. The occluder of claim 5, wherein: The adjusting structure further comprises an adjusting plug (20) mounted on the bronchial catheter (9), the knob is rotatably mounted on the adjusting plug (20), the adjusting plug (20) is provided with a wire hole (204) for the adjusting wire to pass through and a wire winding groove (205) for the adjusting wire to pass around.

7. The occluder of claim 6, wherein: The adjusting plug (20) is provided with a plurality of clamping grooves (202), the knob is provided with a plurality of clamping balls (102), when the knob is rotated to a set position, the clamping balls (102) can enter the clamping grooves (202).

8. The occluder of claim 7, wherein: The adjusting plug (20) is provided with a limiting strip (207), the limiting strip (207) is used for limiting the maximum rotation angle of the knob.

9. The occluder according to any one of claims 5-8, wherein: The adjusting wire is fixed on the knob by a bolt.

10. The occluder according to any one of claims 5-8, wherein: The knob and the adjusting plug are both in a split assembly structure.

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