CN113616375B

CN113616375B - Removable airway stent

Info

Publication number: CN113616375B
Application number: CN202110928231.9A
Authority: CN
Inventors: 金富康; 沈礼宝
Original assignee: Suzhou Frankenman Medical Equipment Co Ltd
Current assignee: Suzhou Frankenman Medical Equipment Co Ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2023-11-10
Anticipated expiration: 2041-08-13
Also published as: CN113616375A

Abstract

The application discloses a removable respiratory tract support, which relates to the technical field of medical equipment and comprises a support net, wherein a support framework is arranged in the support net, the support framework comprises a plurality of coaxial and vertically arranged telescopic support parts, the telescopic support parts are fixedly connected through a plurality of connecting rods, and the telescopic support parts are used for supporting different positions of the support net; the telescopic support part comprises a retainer, the bottom of the retainer is rotationally connected with a turbine, and a plurality of worms uniformly distributed on the circumference are meshed on the turbine. The application has reasonable structure, avoids sliding displacement of the airway stent, slows down granulation hyperplasia, facilitates taking out the airway stent, greatly reduces pain of taking out operation in later period of patients and avoids secondary injury caused by operation in the operation treatment of benign airway stenosis and airway-esophagus fistula blocking and post-period rehabilitation process.

Description

Removable airway stent

Technical Field

The application relates to the technical field of medical appliances, in particular to a removable respiratory tract bracket.

Background

The diseases such as inflammatory granuloma, scar, tuberculosis, wound, trachealecia, amyloidosis, tumor and the like cause the stenosis of the trachea and bronchi, which can cause obstructive pneumonia, atelectasis and dyspnea, and patients with serious symptoms such as dyspnea, wheezing, choking and the like can cause respiratory failure to endanger life. In the treatment of human body lumen stenosis such as esophagus stenosis, trachea stenosis, biliary tract stenosis, vascular stenosis, etc., metal stents, in particular nickel-titanium memory alloy stents, are generally adopted, and these medical stents have obtained good therapeutic effects in clinic and have been used more and more widely in ten years.

Chinese patent publication No. CN112402078A discloses an anti-displacement airway stent, including first port, support frame and second port, the support frame with horizontal distance between first port and the second port equals. When the device is used, the tumor body can be expanded to be combined with the device more tightly, the structural strength of the device is improved, and the device can be properly stretched according to the expansion and stretching of the trachea, so that the device is more matched with the inner wall of the trachea of a patient, and the smooth breathing of the patient is ensured.

The above-described stents have the following disadvantages: due to the stimulation of the metal wire and the peristaltic movement of the lumen, the granulation is proliferated, and the two ends of the stent are embedded with the proliferated granulation, however, as benign diseases, such as benign airway stenosis and plugging of tracheal-esophageal fistula, the stent needs to be taken out after being placed for a period of time, and the two ends of the stent are embedded with the granulation, so that the stent cannot be taken out; although some technical means for contracting and recovering the supporting structure by manipulating the wires exist in the prior art, the technical means are inconvenient to operate and unstable in structure.

Accordingly, the present application provides a removable airway stent to meet the need.

Disclosure of Invention

The application aims to provide a removable respiratory tract support, which can prevent the respiratory tract support from sliding and shifting, slow down granulation hyperplasia, facilitate the removal of the respiratory tract support, greatly reduce the pain of the patient in the later removal operation and avoid secondary injury caused by the operation in the operation treatment of benign airway stenosis and airway-esophagus fistula blocking and the later rehabilitation process.

In order to achieve the above purpose, the present application provides the following technical solutions: the removable airway support comprises a support net, wherein a support framework is arranged in the support net, the support framework comprises a plurality of coaxial and vertically arranged telescopic support parts, the telescopic support parts are fixedly connected through a plurality of connecting rods, and the telescopic support parts are used for supporting different positions of the support net;

the telescopic support part comprises a retainer, the bottom of the retainer is rotationally connected with a turbine, a plurality of worms uniformly distributed on the circumference sides of the turbine are meshed with the turbine, one ends of the worms are rotationally connected with a crossed arc-shaped frame, two sides of the crossed arc-shaped frame are movably connected with fixing rods, the fixing rods are fixedly connected to the inner side walls of the support net, inner gears are fixedly connected to the inner side walls of the turbines, driving gears are meshed with the inner gears, sleeves are rotationally connected to the tops of the driving gears, the sleeves are fixedly connected to the inner side walls of the retainer, guide blocks are movably sleeved on the worms, and the guide blocks are fixedly connected to the outer side walls of the retainer;

the plurality of driving gears are provided with the same operation unit, the operation unit is used for driving the plurality of driving gears to rotate, and the operation unit is detachable and drives a single driving gear to rotate.

Preferably, the operation unit comprises an operation rod, a plurality of thread grooves are formed in the operation rod, nuts are connected to the thread grooves in a threaded mode, conical blocks are fixedly connected to the nuts in a threaded mode, conical holes are formed in the driving gears in a threaded mode, the conical blocks are inserted into the conical holes respectively, a handle is sleeved on the operation rod in a rotating mode, the driving gears are arranged coaxially, and the number of the driving gears is equal to that of the conical blocks.

Preferably, a plurality of taper holes become smaller from top to bottom in sequence, a plurality of taper blocks become smaller from top to bottom in sequence, a plurality of evenly distributed's anti-skidding draw-in grooves have been seted up to the inner wall upper periphery of taper hole, a plurality of non-skid blocks of circle fixedly connected with on the lateral wall of taper block, a plurality of non-skid block adaptation is installed in a plurality of in the anti-skidding draw-in groove.

Preferably, the number of the telescopic supporting parts is three, the plurality of crossed arc frames on the telescopic supporting parts are sequentially staggered from top to bottom, the number of the crossed arc frames on each telescopic supporting part is four, the plurality of connecting rods are respectively and fixedly connected to the inner side walls of the three retainers, and the circumference is uniformly distributed.

Preferably, the support net is formed by weaving a plurality of nickel-titanium alloy wires, and circular balls are fixedly connected at the intersecting positions of two ends of the nickel-titanium alloy wires.

Preferably, the top of a plurality of connecting rods has all been seted up and has been taken the hole, a plurality of all fixedly connected with on the inside wall of connecting rod takes the ring.

Preferably, the cross arc-shaped frame comprises a pair of elastic supporting rods which are arranged in a cross manner, limiting balls are fixedly connected to two ends of each elastic supporting rod, each elastic supporting rod is of an arc-shaped structure, a sliding hole is formed in the side wall of each fixing rod, and one end of each elastic supporting rod is slidably connected to each sliding hole and penetrates through each sliding hole.

Preferably, a plurality of laminating arc grooves have all been seted up on the lateral wall of dead lever, laminating arc groove's surface with the inside wall of supporting network is laminated mutually, and a plurality of circular arc chamfer has all been seted up at the both ends of dead lever.

Preferably, the bottom of holder has seted up annular spout, the top fixedly connected with annular slide rail of internal gear, annular slide rail sliding connection is in the annular spout.

In summary, the application has the technical effects and advantages that:

1. the application has reasonable structure, the hook hooks the taking hole or the taking ring, the airway bracket is placed on the inner wall of the airway, the handle is held by hand, the corresponding conical block is matched with the conical hole on the corresponding driving gear, under the matching of the anti-slip clamping groove and the anti-slip block, the conical block is clamped with the corresponding driving gear, the end part of the operating rod is rotated, the operating rod rotates along the handle, the driving conical block drives the corresponding driving gear to rotate, the driving gear is meshed with the internal gear, the internal gear is fixedly connected on the inner wall of the turbine, the turbine is driven to rotate, the turbine is meshed with a plurality of worms, one ends of the worms are mutually close to move or mutually far away from move under the supporting and guiding action of the guide block, the plurality of worms drive a plurality of crossed arc frames to move, the crossed arc-shaped frames are movably connected to the fixed rods to drive the fixed rods to move, so that the supporting net is driven to shrink inwards or expand, the supporting net is stretched when the supporting net expands, the taking holes or the taking rings are hooked through the hook pieces when the supporting net is taken out, the supporting net is contracted inwards by the same steps, the inner diameter of the supporting net is reduced, the supporting net is taken out of the respiratory tract conveniently, sliding displacement of the supporting net is avoided in the treatment of benign airway stenosis and airway-esophagus fistula blocking and in the later-stage rehabilitation process, granulation hyperplasia is slowed down, the taking out of the supporting net is facilitated, the pain of taking out an operation in the later stage of a patient is greatly reduced, and secondary injury caused by the operation is avoided; compared with a silk thread control mode, the structure operation is simpler, and the structure is more stable;

2. according to the application, the number of the conical blocks which are in threaded connection with the operating rod is selected according to the requirement, the conical blocks below pass through the conical holes on the driving gear above in sequence, so that a plurality of telescopic supporting parts can move independently or simultaneously, different tensioning and supporting are carried out on different positions of the respiratory tract, the respiratory tract bracket can be stably fixed on the respiratory tract, and the problems of slipping and the like are avoided;

3. in the application, the number of the telescopic supporting parts is three, and the plurality of the crossed arc-shaped frames on the three telescopic supporting parts are sequentially staggered from top to bottom, so the arrangement has the advantages that different supporting forces are exerted on different positions of the supporting net, the supporting net is better expanded or contracted, the number of the crossed arc-shaped frames on each telescopic supporting part is four, and the arrangement has the advantage that the stress is more uniform when the inner wall of the respiratory tract is supported;

4. according to the application, the crossed arc-shaped frames comprise a pair of elastic supporting rods which are arranged in a crossed manner, and the two ends of each elastic supporting rod are fixedly connected with limiting balls, and the elastic supporting rods are of an arc-shaped structure.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a removable airway stent;

FIG. 2 is a schematic elevational view of a removable airway stent;

FIG. 3 is an enlarged perspective view of a first view of a support frame;

FIG. 4 is an enlarged perspective view of a second view of the support frame;

fig. 5 is an enlarged perspective view of the operation unit;

fig. 6 is an enlarged schematic view of the structure at a in fig. 1.

In the figure: 1. a support net; 2. a support skeleton; 3. a telescopic support part; 4. a connecting rod; 5. a retainer; 6. a fixed rod; 7. a worm; 8. a crossed arc-shaped frame; 9. a drive gear; 10. an operation lever; 11. a turbine; 12. an internal gear; 13. a conical block; 14. a nut; 15. a thread groove; 16. a handle; 17. a guide block; 18. the ring is taken.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Examples: 1-6, a removable respiratory tract support comprises a support net 1, wherein a support framework 2 is arranged in the support net 1, the support framework 2 comprises a plurality of coaxial and vertically arranged telescopic support parts 3, the telescopic support parts 3 are fixedly connected through a plurality of connecting rods 4, and the telescopic support parts 3 are used for supporting different positions of the support net 1;

the telescopic support part 3 comprises a retainer 5, a turbine 11 is rotatably connected to the bottom of the retainer 5, a plurality of worms 7 uniformly distributed on the circumference are meshed on the turbine 11, one ends of the plurality of worms 7 are rotatably connected with a cross arc frame 8, two sides of the cross arc frame 8 are movably connected with fixing rods 6, the plurality of fixing rods 6 are fixedly connected to the inner side walls of the support net 1, inner gears 12 are fixedly connected to the inner side walls of the plurality of turbines 11, driving gears 9 are meshed on the plurality of inner gears 12, sleeves are rotatably connected to the tops of the plurality of driving gears 9, the sleeves are fixedly connected to the inner side walls of the retainer 5, guide blocks 17 are movably sleeved on the plurality of worms 7, and the guide blocks 17 are fixedly connected to the outer side walls of the retainer 5; the same operation unit is installed on a plurality of drive gears 9, the operation unit is used for driving a plurality of drive gears 9 to rotate, the operation unit can be detached, and a plurality of crossed arc frames 8 are driven to rotate, the operation unit is disassembled and assembled, a plurality of fixing rods 6 are driven to move, thereby the support net 1 is driven to shrink inwards or expand to move simultaneously, the operation unit is rotated, the drive gears 9 rotate, the drive gears 9 are meshed with the internal gear 12, the internal gear 12 rotates, the internal gear 12 is fixedly connected to the inner wall of the turbine 11, the turbine 11 is driven to rotate, the turbine 11 is meshed with a plurality of worms 7, under the supporting and guiding action of the guide block 17, one ends of a plurality of worms 7 move close to each other or move away from each other, a plurality of crossed arc frames 8 are movably connected to the fixing rods 6, the fixing rods 6 are driven to move, and accordingly the support net 1 is driven to shrink inwards or expand, the support net is driven to stretch inwards when expanding, the support net is driven to stretch the respiratory tract, the support net 3 can move independently, the internal gear 12 is driven to rotate, the internal gear 12 is fixedly connected to the inner wall of the turbine 11, the turbine 11 is driven to rotate, the turbine 11 is meshed with the plurality of worms 7, one end of worms 7 moves away from each other, the fixing frame on the support frame, the support net 1 is driven to move towards the respiratory tract, the respiratory tract is convenient to take out from the respiratory tract, the operation is convenient to take out from the respiratory tract, and the respiratory tract has a great pain, and is prevented from the respiratory tract has a great disease, and has been caused by the operation.

As an implementation manner in this embodiment, the operation unit includes the operation lever 10, a plurality of thread grooves 15 are formed in the operation lever 10, nuts 14 are connected to the thread grooves 15 in a threaded manner, tapered blocks 13 are connected to the nuts 14 in a fixedly connected manner, tapered holes are formed in the driving gears 9 in a threaded manner, the tapered blocks 13 are inserted into the tapered holes respectively, a handle 16 is sleeved on the operation lever 10 in a rotating manner, the driving gears 9 are coaxially arranged, the number of the driving gears 9 is equal to that of the tapered blocks 13, the tapered holes are sequentially reduced from top to bottom, the tapered blocks 13 are sequentially reduced from top to bottom, a plurality of uniformly distributed anti-slip clamping grooves are formed in the inner wall of the tapered blocks 13 in a circumferential manner, a plurality of anti-slip blocks are connected to the side wall of the tapered blocks 13 in a fixedly manner, the tapered blocks are installed in the anti-slip clamping grooves in a matched manner, the number of the tapered blocks 13 in the operation lever 10 is selected according to requirements, the hand-held handle 16 sequentially penetrates the tapered blocks 13 below the tapered blocks 9 in the upper driving gears 9, the corresponding tapered blocks 13 are enabled to be matched with the tapered blocks 9 in a corresponding manner, and the tapered blocks 9 are correspondingly matched with the tapered blocks 9 in the driving gears 9 in a rotating manner, and the end portions of the tapered blocks are correspondingly matched with the tapered blocks 9 are rotated, and the tapered blocks 9 are matched with the driving blocks 13 in the driving gears are matched with the end portions to be matched with the tapered blocks, and the driving blocks 13.

As one implementation mode in this embodiment, the number of the telescopic supporting portions 3 is three, and a plurality of crossed arc frames 8 on the three telescopic supporting portions 3 are staggered from top to bottom in sequence, so that the device has the advantages that different supporting forces are achieved on the position of the respiratory tract obstruction, the number of the crossed arc frames 8 on each telescopic supporting portion 3 is four, so that the device has the advantages that when supporting the inner wall of the respiratory tract, the stress is more uniform, a plurality of connecting rods 4 are fixedly connected to the inner side walls of the three retainers 5 respectively, and the circumference is uniformly distributed.

As an implementation mode in this embodiment, the supporting net 1 is formed by weaving a plurality of nickel-titanium alloy wires, and a circular ball is fixedly connected with the intersection position of a plurality of nickel-titanium alloy wires both ends, and the purpose of setting like this is to avoid having edges and corners to scratch the respiratory tract inner wall, is convenient for take out the respiratory tract support simultaneously.

As an implementation manner in this embodiment, the top of the plurality of connecting rods 4 is provided with a taking hole, the inner side walls of the plurality of connecting rods 4 are fixedly connected with a taking ring 18, so that the hook piece of the respiratory tract bracket can be conveniently hooked on the taking hole or the taking ring 18, and the respiratory tract bracket can be taken down by pulling the hook piece.

As one implementation mode in this embodiment, the crossed arc-shaped frame 8 comprises a pair of elastic supporting rods which are arranged in a crossed manner, both ends of each elastic supporting rod are fixedly connected with limiting balls, each elastic supporting rod is of an arc-shaped structure, and the purpose of the arrangement is that the crossed arc-shaped frame 8 has certain tension, a sliding hole is formed in the side wall of the fixing rod 6, and one end of each elastic supporting rod is slidably connected in the sliding hole and penetrates through the sliding hole.

As an implementation manner in this embodiment, the side walls of the fixing rods 6 are provided with attaching arc grooves, the surfaces of the attaching arc grooves are attached to the inner side walls of the supporting net 1, and the two ends of the fixing rods 6 are provided with arc chamfers.

As an implementation manner in this embodiment, an annular chute is provided at the bottom of the retainer 5, and an annular slide rail is fixedly connected to the top of the internal gear 12 and slidably connected to the annular chute.

The working principle of the application is as follows:

when the airway bracket is installed, firstly, the airway bracket is placed on the inner wall of the airway through the hook piece to hook the taking hole or the taking ring 18, the number of the conical blocks 13 which are in threaded connection with the operating rod 10 is selected according to the requirement, the handle 16 is held by hands, the conical blocks 13 below sequentially penetrate through the conical holes on the upper driving gear 9, the corresponding conical blocks 13 are matched with the conical holes on the corresponding driving gear 9, under the matching of the anti-slip clamping grooves and the anti-slip blocks, the conical blocks 13 are clamped with the corresponding driving gears 9, the end part of the operating rod 10 is rotated, the operating rod 10 rotates along the handle 16, the driving conical blocks 13 rotate the corresponding driving gears 9, the driving gears 9 are meshed with the internal gear 12 to rotate, the internal gear 12 is fixedly connected to the inner wall of the turbine 11 to drive the turbine 11 to rotate, the turbine 11 is meshed with the plurality of worms 7, one ends of the plurality of worms 7 move close to each other or move away from each other under the supporting and guiding action of the guide block 17, the plurality of worms 7 drive the plurality of crossed arc frames 8 to move, the crossed arc frames 8 are movably connected to the fixed rods 6 to drive the plurality of fixed rods 6 to move, so that the supporting net 1 is driven to shrink inwards or expand, when expanding, the supporting net 1 is driven to prop up the respiratory tract, the plurality of telescopic supporting parts 3 can move independently to realize different tensioning and supporting on different positions of the respiratory tract, and the respiratory tract support can be stably fixed on the respiratory tract;

when the airway stent is taken, the taking hole or the taking ring 18 is hooked through the hook piece, and the steps are similar to the above, so that the supporting net 1 is contracted inwards, the inner diameter of the supporting net 1 is reduced, the airway stent is convenient to take out from the airway, sliding displacement of the airway stent is avoided, granulation hyperplasia is slowed down, the airway stent is convenient to take out, pain of a patient in later-stage taking out operation is greatly reduced, and secondary injury caused by the operation is avoided in the operation treatment and later-stage rehabilitation process of benign airway stenosis and airway-esophageal fistula plugging.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present application, and although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present application.

Claims

1. A removable respiratory tract support comprises a support net (1),

the method is characterized in that: a supporting framework (2) is arranged in the supporting net (1), the supporting framework (2) comprises a plurality of telescopic supporting parts (3) which are coaxially and vertically arranged, the telescopic supporting parts (3) are fixedly connected through a plurality of connecting rods (4), and the telescopic supporting parts (3) are used for supporting different positions of the supporting net (1);

the telescopic support part (3) comprises a retainer (5), the bottom of the retainer (5) is rotationally connected with a turbine (11), a plurality of worms (7) with evenly distributed circumference sides are meshed on the turbine (11), one ends of the worms (7) are rotationally connected with a crossed arc frame (8), two sides of the crossed arc frame (8) are movably connected with fixing rods (6), the fixing rods (6) are fixedly connected to the inner side walls of the support net (1), inner gears (12) are fixedly connected to the inner side walls of the turbines (11), driving gears (9) are meshed on the inner gears (12), sleeves are rotationally connected to the tops of the driving gears (9), the sleeves are fixedly connected to the inner side walls of the retainer (5), guide blocks (17) are movably sleeved on the worms (7), and the guide blocks (17) are fixedly connected to the outer side walls of the retainer (5);

the utility model provides a plurality of install same operating unit on driving gear (9), operating unit is used for driving a plurality of driving gear (9) rotate, operating unit can dismantle, and the drive is single driving gear (9) rotate, a plurality of the hole of taking has all been seted up at the top of connecting rod (4), a plurality of equal fixedly connected with ring (18) of taking on the inside wall of connecting rod (4), operating unit includes action bars (10), a plurality of screw thread groove (15) have been seted up on action bars (10), a plurality of equal threaded connection has nut (14) on screw thread groove (15), a plurality of equal fixedly connected with taper piece (13) on nut (14), a plurality of all set up the taper hole on driving gear (9), a plurality of taper piece (13) peg graft respectively in the taper hole, rotate on action bars (10) and cup joint handle (16), a plurality of driving gear (9) coaxial setting, driving gear (9) with taper piece (13) have the taper piece equal taper circle from a plurality of taper circle down on a plurality of taper circle (13) are connected to a plurality of taper circle down in proper order, a plurality of anti-slip rings are connected to a plurality of taper circle (13) have.

2. A removable airway stent as claimed in claim 1 wherein: the number of the telescopic supporting parts (3) is three, the plurality of crossed arc frames (8) on the telescopic supporting parts (3) are sequentially staggered from top to bottom, the number of the crossed arc frames (8) on each telescopic supporting part (3) is four, the connecting rods (4) are respectively and fixedly connected to the inner side walls of the three retainers (5), and the circumference is uniformly distributed.

3. A removable airway stent as claimed in claim 2 wherein: the support net (1) is formed by weaving a plurality of nickel-titanium alloy wires, and round balls are fixedly connected to the intersecting positions of the two ends of the nickel-titanium alloy wires.

4. A removable airway stent as claimed in claim 3, wherein: the cross arc-shaped frame (8) comprises a pair of elastic supporting rods which are arranged in a cross mode, limiting balls are fixedly connected to two ends of the elastic supporting rods, the elastic supporting rods are of arc-shaped structures, sliding holes are formed in the side walls of the fixing rods (6), and one ends of the elastic supporting rods are connected in the sliding holes in a sliding mode and penetrate through the sliding holes.

5. The removable airway stent of claim 4, wherein: a plurality of laminating arc wall has all been seted up on the lateral wall of dead lever (6), laminating arc wall's surface with the inside wall of supporting network (1) is laminated mutually, a plurality of circular arc chamfer has all been seted up at the both ends of dead lever (6).

6. The removable airway stent of claim 5, wherein: an annular chute is formed in the bottom of the retainer (5), an annular slide rail is fixedly connected to the top of the inner gear (12), and the annular slide rail is slidably connected in the annular chute.