Keel four-direction moving mechanism of catheter for respiratory intervention in airway
By designing a four-way movable mechanism for the keel of the intra-airway respiratory intervention catheter, the problems of the catheter being unable to bend in four directions and the handle being non-detachable were solved, thus achieving the detachable and reusable catheter and improving surgical efficiency.
Patent Information
- Application Number
- CN202422434668.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Existing catheters used for intra-airway respiratory interventions cannot bend in four directions on their own, resulting in the inability to accurately position the catheter sheath, and the handle cannot be removed and reused, which increases costs and reduces surgical efficiency.
A four-way movable mechanism for the keel of an intra-airway respiratory intervention catheter was designed. The handle was detachably connected to the quick-release handle at the catheter end through the dual connection of a connecting rod and a fixed block. The four-way movement of the catheter was achieved by using a belt to drive the spur gear connecting rod and the keel traction line. The movement and locking of the catheter end was controlled by a locking knob.
The catheter handle can be detached and reused, which reduces costs, improves surgical efficiency, reduces the limitations of doctors' operations, and enhances surgical flexibility.
Smart Images

Figure CN223453204U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to airway breathing conduit technical field, especially the keel four -way activity mechanism of airway internal respiration intervention conduit. BACKGROUND
[0002] The application of navigation bronchoscope technology is like installing GPS positioning system in the lung, can guide specific catheter sheath to reach the area that conventional bronchoscope cannot explore, makes the diagnosis and treatment range of bronchoscope expand from the center of the lung to the periphery, and almost can realize full lung reaching. The existing catheter sheath realizes full lung reaching through pre-bending different angles (45°, 90° and 180° three) and different thicknesses, but the catheter for airway internal respiration intervention cannot realize self four-angle bending, and in the actual operation process, the catheter sheath cannot realize accurate positioning of the lesion due to the self four-angle bending of the catheter sheath, therefore the keel four-way activity mechanism of airway internal respiration intervention conduit is proposed.
[0003] For example, the Chinese patent with publication number CN212491087U discloses an inner cavity adjustable catheter device, which comprises a base, the base is connected with a catheter at the upper end, the catheter comprises a first channel for treatment and a second channel for adjusting the angle of the catheter, a traction line is arranged in the second channel, one end of the traction line is fixed to the inner cavity head end of the second channel, the other end of the traction line extends out of the tail end of the second channel and is connected with a pulling tool, and the pulling tool is slidably installed on the base.
[0004] The above-mentioned patent has the following problems:
[0005] The handle in the prior art cannot be removed due to high cost, the handle cannot be reused after the catheter is used, which increases the cost and may reduce the purchase rate of disposable catheters. Moreover, the handle needs to be fixed after being moved in the prior art, the surgeon needs to fix it after watching, the limitation is reduced, the surgeon needs to pull the traction line, which cannot facilitate the surgeon to perform surgery, and the efficiency of the surgery is reduced. In view of this, the keel four-way activity mechanism of airway internal respiration intervention conduit is proposed. UTILITY MODEL CONTENT
[0006] The utility model aims at the above-mentioned technical problems, provides a keel four-way activity mechanism of airway internal respiration intervention conduit, which can be repeatedly used and is convenient to move.
[0007] The utility model provides a keel four -way movable mechanism of airway breath intervention with catheter, including operating handle, its characterized in be provided with: one side fixed mounting of operating handle has connecting rod, the inside fixed setting fixed hole of connecting rod, both sides of fixed hole all fixed mounting has fixed block, the inside fixed setting limit hole of fixed block, the top movable mounting of operating handle has first locking knob, the bottom movable mounting of first locking knob has second button, the bottom movable mounting of second button has third button, the bottom movable mounting of third button has second locking knob button, the surface of second button and third button all sleeve joint installation has belt, and there is a POM gasket between the contact surface of first locking knob and second button, and there is a POM gasket between the contact surface of second locking knob and third button.
[0008] Based on the above structure, the fixed hole can be fixed by the connecting rod, then the protrusion on the catheter end quick release handle is clamped in the fixed hole, then the fixed block and the limit hole are clamped with another protrusion on the catheter end quick release handle, double connection can be achieved, the operating handle and the catheter end quick release handle can be connected, when it is needed to be removed, the protrusion is pulled out of the fixed hole and the limit hole by pulling the catheter end quick release handle, the keel traction line is arranged at the opening position of the telescopic rod and connected with the connecting rod, the keel is swung by pulling the connecting rod when the connecting rod moves, the corresponding mounting position is arranged on the connecting rod, and the operating handle can be removed by cooperation, the operating handle can be repeatedly used after use, the cost is not increased, the purchase rate of disposable catheter is increased, the UD direction activity and locking of the keel at the end of the catheter body can be changed by rotating the second locking knob and the third button, then the RL direction activity and locking of the keel at the end of the catheter can be controlled by rotating the first locking knob and the second button, then the four straight gear connecting rods are driven by the belt, the four straight gear connecting rods are respectively fixed with the keel traction line, the keel traction line is connected to the end of the keel, the keel four-way movable mechanism is driven, the catheter can be moved during operation, the limitation is high, the doctor does not need to pull the traction line, the doctor can conveniently operate, and the operation efficiency is improved.
[0009] Preferably, the surface of the operating handle is fixedly installed with a protective layer, and the protective layer is made of polycarbonate material.
[0010] Preferably, a fifth button is movably installed on the surface of the operating handle, a fixed disc is fixedly arranged in the belt, and a straight gear connecting rod is arranged in the operating handle.
[0011] Preferably, a positioning hole is fixedly arranged in the fixed disc.
[0012] Preferably, a catheter end quick release handle is movably installed on one side of the connecting rod, and an extension mechanism is fixedly arranged on one side of the catheter end quick release handle, so that the operation is facilitated.
[0013] Preferably, the inside of the fifth button is fixedly provided with a compression cavity, one side of the compression cavity is fixedly provided with a gas filling pipe, and the gas filling pipe contains gas.
[0014] Preferably, the inside of the straight gear connecting rod is fixedly provided with a keel traction line, and the telescopic fixed rod.
[0015] The utility model discloses the beneficial effect is:
[0016] 1. The keel four-way moving mechanism of the catheter for airway internal respiration intervention can fix the fixed hole by using the connecting rod, then the protruding block on the catheter end is clamped in the fixed hole, then the fixed block and the limiting hole are clamped on the other protruding point on the quick release handle of the catheter end, double connection can connect the handle and the quick release handle of the catheter end, when needing to be disassembled, only need to pull the quick release handle of the catheter end to pull out the protruding block from the fixed hole and the limiting hole, and the handle can be disassembled, the handle can be repeatedly used after use, and the cost increase is avoided, and the purchase rate of disposable catheters is increased.
[0017] 2. The keel four-way moving mechanism of the catheter for airway internal respiration intervention can rotate the second locking knob and the third button to realize the movement and locking of the UD direction of the keel tail end of the catheter body, then rotate the first locking knob and the second button to realize the movement and locking of the RL direction of the keel tail end of the catheter, then utilize the belt to drive the four straight gear connecting rods, the four straight gear connecting rods are respectively fixed with the keel traction line, the keel traction line is connected to the keel tail end, the keel four-way moving can be driven, the catheter can be moved during operation, the limitation is higher, the doctor does not need to pull the traction line, the doctor can conveniently operate, and the operation efficiency is increased. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the overall perspective view of the utility model;
[0019] Figure 2 It is the local structure perspective view of the operating handle in the utility model;
[0020] Figure 3 It is the local structure schematic view of the locking knob in the utility model;
[0021] Figure 4 It is the local structure perspective view of the catheter end quick release handle in the utility model;
[0022] Figure 5 It is the local structure schematic view of the keel traction line inside the catheter end quick release handle in the utility model.
[0023] The marks in the drawing indicate that:
[0024] 1, operating handle; 101, protective layer; 2, connecting rod; 201, fixed hole; 202, fixed block; 203, limiting hole; 3, first locking knob; 301, second button; 302, third button; 303, second locking knob; 304, belt; 4, straight gear connecting rod; 401, keel traction line; 402, telescopic fixed rod; 5, fifth button; 6, fixed disc; 601, positioning hole; 7, catheter end quick release handle; 701, telescopic mechanism; 8, compression cavity; 801, inflation pipeline. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0026] The utility model discloses a kind of keel four-way movable mechanisms of endotracheal breathing intervention catheter, please refer to Figures 1-4 , including operating handle 1, further comprising: operating handle 1 one side fixed installation has connecting rod 2, the inside fixed setting fixed hole 201 of connecting rod 2, the both sides of fixed hole 201 are fixedly installed with fixed block 202, the inside fixed setting limiting hole 203 of fixed block 202, operating handle 1 top movably installed with first locking knob 3, the bottom of first locking knob 3 movably installed with second button 301, the bottom of second button 301 movably installed with third button 302, the bottom of third button 302 movably installed with second locking knob 303, the surface of second button 301 and third button 302 is all sleeved with belt 304 The contact surface between first locking knob 3 and second button 301 has a POM gasket, the contact surface between second locking knob 303 and third button 302 has a POM gasket.
[0027] Based on the above structure, the fixed hole 201 can be fixed by the connecting rod 2, then the protrusion on the catheter end quick release handle 7 is clamped in the fixed hole 201, and then the fixed block 202 is clamped with the limiting hole 203 on the other protrusion of the catheter end quick release handle 7. Double connection can connect the operating handle 1 with the catheter end quick release handle 7. When it needs to be removed, just pull the catheter end quick release handle 7 to pull the protrusion out of the fixed hole 201 and the limiting hole 203 to remove it. The keel traction line 401 is connected with the connecting rod 2, and the connecting rod 2 is pulled to swing when moving. The connecting rod 2 has a corresponding installation position, which is used in cooperation. The operating handle 1 can be removed, and the operating handle 1 can be repeatedly used after use, which will not increase the cost and increase the purchase rate of disposable catheters. Then rotate the second locking knob 303 and the third button 302 to change the FD direction of the keel at the end of the catheter body. Then rotate the first locking knob 3 and the second button 301 to control the RL direction of the keel at the end of the catheter. Then use the belt 304 to drive 4 straight gear connecting rods 4, and the 4 straight gear connecting rods 4 are respectively fixed with the keel traction line 401 connected to the keel end. The keel four-way activity can be driven, the catheter can be moved during the operation, and the limitation is high. The doctor does not need to pull the traction line, which can facilitate the doctor to operate and increase the efficiency of the operation.
[0028] In one embodiment, the surface of the operating handle 1 is fixedly provided with a protective layer 101 made of polycarbonate material.
[0029] Specifically, the internal parts can be installed by using the operating handle 1, and the protective performance of the operating handle 1 is enhanced by using the high impact strength, good dimensional stability and heat resistance of the protective layer 101 made of polycarbonate material.
[0030] In this embodiment, the protective layer 101 can protect the parts inside the operating handle 1 and improve the service life during use.
[0031] In one embodiment, the surface of the operating handle 1 is movably provided with a fifth button 5, the inside of the belt 304 is fixedly provided with a fixed disc 6, and the inside of the operating handle 1 is provided with a straight gear connecting rod 4.
[0032] In one embodiment, the inside of the fixed disc 6 is fixedly provided with a positioning hole 601.
[0033] Specifically, the second locking knob 303 can be fixed by using the fixed disc 6, and then the second button 301 and the third button 302 can be fixed by using the positioning hole 601 matched with the fixed column.
[0034] In this embodiment, the second button 301 and the third button 302 are fixed, which is convenient for work.
[0035] In one of the embodiments, one side of the connecting rod 2 is movably installed with the catheter end quick release handle 7, and one side of the catheter end quick release handle 7 is fixedly provided with the telescopic mechanism 701.
[0036] Specifically, the telescopic mechanism 701 can be fixed by using the catheter end quick release handle 7, and then the telescopic mechanism 701 is used for surgical work.
[0037] In this embodiment, the catheter end quick release handle 7 is convenient to fix the telescopic mechanism 701, and can be connected with the operation handle 1.
[0038] In one of the embodiments, the inside of the fifth button 5 is fixedly provided with the compression cavity 8, and one side of the compression cavity 8 is fixedly provided with the inflation pipeline 801.
[0039] Specifically, the compression cavity 8 can be used to conveniently convey air, and the inflation pipeline 801 is used for conveying.
[0040] In this embodiment, the inflation pipeline 801 is connected with the telescopic mechanism 701, which is convenient for conveying work, and the end of the spur gear connecting rod 4 is a buckle, which is used to connect the catheter joint part.
[0041] In one of the embodiments, the inside of the spur gear connecting rod 4 is fixedly provided with the keel traction line 401 and the telescopic fixed rod 402.
[0042] The keel four-way moving mechanism of the catheter for airway breathing intervention of the embodiment can fix the fixing hole 201 by using the connecting rod 2, then use the protrusion on the catheter end quick release handle 7 to be clamped in the fixing hole 201, then use the fixing block 202 and the limiting hole 203 to be clamped with another protrusion on the catheter end quick release handle 7, double connection can connect the operating handle 1 and the catheter end quick release handle 7, when it is needed to be removed, only pull the catheter end quick release handle 7 to pull the protrusion out of the fixing hole 201 and the limiting hole 203, the straight gear connecting rod 4 opening position has a keel traction line 401 connected with the straight gear connecting rod 4, when the straight gear connecting rod 4 moves, the keel swings, the straight gear connecting rod 4 has a corresponding installation position, then use the catheter end quick release handle 7 to fix the telescopic mechanism 701, then use the telescopic mechanism 701 to perform surgical operation, then use the fixing disc 6 to fix the belt 304, then use the positioning hole 601 to cooperate with the fixing column to fix the second button 301 and the third button 302, then rotate the second locking knob 303 and the third button 302 to change the UD direction activity and locking of the keel of the catheter body end, then rotate the first locking knob 3 and the second button 301 to realize the control of the RL direction activity and locking of the keel of the catheter end, then use the belt 304 to drive four straight gear connecting rods 4, the four straight gear connecting rods 4 are respectively fixed with the keel traction line 401, the keel traction line 401 is connected to the keel end, drives the keel four-way movement, the joint part of the catheter end quick release handle 7 protrudes the buckle, is buckled into the operating handle 1 and the straight gear connecting rod 4 buckle respectively, so that it drives when moving, then use the fifth button 5 to rotate the compression cavity 8, then use the compression cavity 8 to conveniently convey air, use the inflation pipeline 801 to convey to the hemostatic air bag near the keel end to swell and shrink.
[0043] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A keel four-way movement mechanism of a catheter for endobronchial respiratory intervention, comprising an operating handle (1), characterized in that, Also includes: One side of the operating handle (1) is fixedly installed with a connecting rod (2), the inside of the connecting rod (2) is fixedly provided with a fixed hole (201), both sides of the fixed hole (201) are fixedly installed with a fixed block (202), the inside of the fixed block (202) is fixedly provided with a limiting hole (203), the top of the operating handle (1) is movably installed with a first locking knob (3), the bottom of the first locking knob (3) is movably installed with a second button (301), the bottom of the second button (301) is movably installed with a third button (302), the bottom of the third button (302) is movably installed with a second locking knob (303), the surface of the second button (301) and the third button (302) is sleevedly installed with a belt (304), there is a POM gasket between the contact surface of the first locking knob (3) and the second button (301), and there is a POM gasket between the contact surface of the second locking knob (303) and the third button (302).
2. The keel four-way mobility mechanism for an endobronchial intervention catheter according to claim 1, characterized in that: The surface of the operating handle (1) is fixedly installed with a protective layer (101), and the protective layer (101) is made of polycarbonate material.
3. The keel four-way mobility mechanism for an endobronchial intervention catheter according to claim 1, characterized in that: The surface of the operating handle (1) is movably installed with a fifth button (5), the inside of the belt (304) is fixedly provided with a fixed disc (6), and the inside of the operating handle (1) is provided with a straight gear connecting rod (4).
4. The keel four-way mobility mechanism for an endobronchial intervention catheter according to claim 3, characterized in that: The inside of the fixed disc (6) is fixedly provided with a positioning hole (601).
5. The keel four-way mobility mechanism for an endobronchial intervention catheter according to claim 1, characterized in that: One side of the connecting rod (2) is movably installed with a catheter end quick release handle (7), one side of the catheter end quick release handle (7) is fixedly provided with an extension mechanism (701).
6. The keel four-way mobility mechanism for an endobronchial intervention catheter according to claim 3, characterized in that: The inside of the fifth button (5) is fixedly provided with a compression cavity (8), one side of the compression cavity (8) is fixedly provided with an inflation pipeline (801).
7. The keel four-way mobility mechanism for an endobronchial intervention catheter according to claim 3, characterized in that: The inside of the straight gear connecting rod (4) is fixedly provided with a keel traction line (401), and a telescopic fixed rod (402).
Citation Information
Patent Citations
Catheter device with adjustable inner cavity
CN212491087U