CN219374771U - Positioning pushing mechanism for pincer-type suture nasal septum anastomat - Google Patents

Abstract

The utility model discloses a positioning and pushing mechanism for a pincer-shaped suture type nasal septum anastomat, which is characterized by comprising the following components: the pushing support is provided with a chute which is axially arranged; the pushing piece is slidably arranged in the sliding groove of the pushing support, and the nostril fixing support is connected with the distal end of the pushing piece. The positioning pushing mechanism is provided with the nostril fixing bracket, so that the positioning pushing mechanism can adapt to different nasal cavity environments and simultaneously improves the suture accuracy of the suture mechanism on suture tissues.

Description

Positioning pushing mechanism for pincer-type suture nasal septum anastomat

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a positioning pushing mechanism for a pincer-shaped suture type nasal septum anastomat.

Background

The deflection of the nasal septum is one of the more common diseases of the otorhinolaryngology, and is a common and frequently occurring disease of the rhinology. The incidence in the population was reported to be 51% with 12% of symptomatic need for treatment, i.e. approximately 6 individuals in each hundred of the population need treatment for the disease. The deflection of nasal septum is related to congenital development, trauma and other factors, and the serious deflection degree can cause nasal ventilation and sinus drainage disorder, and symptoms such as nasal obstruction, nasal bleeding, reflex headache and the like appear, and the long-term bad symptoms can seriously influence the life quality of patients, even influence the mind.

The nasal septum correction method for treating the deflection of the nasal septum is widely applied in clinical medical treatment, and the method for fixing the nasal septum and effectively stopping bleeding after the operation is currently a nasal cavity filling method at home and abroad. During the filling period, the patients can suffer from headache, nasal obstruction, dry mouth, dysphagia and the like, and can easily suffer from complications such as nasal cavity and nasal sinus infection, tympanic effusion and the like, and serious complications such as arrhythmia, myocardial infarction and the like even can be caused by serious nose and heart reflex; the operation of taking out the nasal cavity tamponade is more painful for most patients, fear and conflict with mind are generated for treatment, secondary bleeding can be caused, and syncope shock can be caused by serious patients.

According to the results of preliminary researches in the prior period, the nasal septum suture can not only effectively fix nasal septum cartilage and repair torn mucous membrane, but also effectively avoid the pain brought to patients when the tamponade is extracted. In the aspect of postoperative recovery, the nasal cavity of a patient subjected to nasal septum suture is relatively clean, nasal endocrine is less required to be treated after the operation, and the postoperative recovery is relatively quick; the nasal septum suture can suture the incision and knot at the nasal vestibule skin, which is beneficial to the healing of the incision and good alignment and beautiful appearance. The nasal septum suture can obviously improve the discomfort symptom of the patient after the operation, protect the nasal mucosa function to a greater extent, reduce the occurrence of postoperative complications, ensure that the patient recovers quickly and the nasal septum deflection correction is satisfactory. In summary, nasal septum suturing is a new technique that requires a skilled intra-nasal manipulation technique from the operator. Compared with the nasal cavity filling method, the nasal septum suture method can obviously relieve the pain and the economic burden of the patient, help the patient to recover as soon as possible, has low postoperative complication occurrence rate and shortens the hospitalization time, and therefore, the nasal septum suture method is worthy of clinical popularization and application. However, because of the narrow nasal cavity, there is no special instrument suitable for nasal septum suturing, and this method has disadvantages of inconvenient operation and prolonged operation time compared with the conventional stuffing method. For beginners, the learning difficulty is increased, and many young doctors are reluctant to learn and try, so that popularization and application of the nasal septum suturing are hindered. For this reason, it is necessary to explore a nasal septum anastomat suitable for nasal septum suturing to solve the disadvantages of inconvenient operation and prolonged operation time of the nasal septum suturing.

Disclosure of Invention

The utility model aims at solving the technical problems that in the prior art, in the nasal septum suture operation, the accurate positioning cannot be realized in the suture process, and aims to provide a positioning and pushing mechanism for a pincer-shaped suture nasal septum anastomat.

A positioning and pushing mechanism for a pincer-shaped suturing type nasal septum anastomat, which is characterized by comprising the following components:

the pushing support is provided with a chute which is axially arranged;

a pushing piece which is slidably arranged in the chute of the pushing bracket,

and the nostril fixing bracket is connected with the distal end of the pushing piece.

In the present utility model, it is preferable that,

the chute is provided with an upper chute and a lower chute which is radially communicated with the upper chute;

the pushing piece is provided with a pushing strip slidably arranged in the lower chute and a finger pressure pushing block slidably arranged in the upper chute, the distal end of the pushing strip is connected with the nostril fixing support, and the finger pressure pushing block is connected with the upper surface of the proximal end of the pushing strip.

In the present utility model, preferably, the upper part of the two side walls of the upper chute is provided with a plurality of triangular concave teeth;

the two side walls of the finger pressing pushing block are respectively provided with at least one elastic convex tooth which can be clamped into the triangular concave tooth, and when the finger pressing pushing block is pressed, the elastic convex tooth is extruded to the lower parts of the two side groove walls of the upper sliding groove, so that the finger pressing pushing block can slide in the upper sliding groove.

In the present utility model, preferably, the finger-pressing pushing block has an anti-slip protruding strip on an upper surface thereof.

In the present utility model, preferably, the cross section of the upper chute is cross-shaped, and the cross section of the finger pressing pushing block is also cross-shaped.

In the present utility model, the cross section of the lower chute is preferably T-shaped, and the cross section of the pushing bar is also T-shaped.

In the present utility model, preferably, the distal end of the pushing bar has a vertical connection post, through which the pushing bar is connected to the nostril fixing support.

In the present utility model, it is preferable that the nostril fixing support has:

two round table funnels which can be positioned at proper positions of nostrils respectively;

and the two ends of the connecting frame are fixedly connected with the side wall of the truncated cone-shaped funnel respectively, and the middle part of the connecting frame is connected with the distal end of the pushing strip.

In the present utility model, it is preferable that the connection frame is V-like, C-like or side door-like.

In the present utility model, preferably, the middle part of the connecting frame is provided with a connecting hole, and the connecting hole is fixedly connected with the vertical connecting column at the distal end of the pushing strip.

Another object of the present utility model is to provide a clip-on suturing nasal septum stapler having:

a suture mechanism which is penetrated with a suture thread and can suture the suture tissue;

the control mechanism is used for controlling the suturing mechanism to suture, and the distal end of the control mechanism is connected with the proximal end of the suturing mechanism;

the positioning pushing mechanism can be positioned in the nostril and is fixed on the control mechanism;

a suture tensioning mechanism for winding and tensioning the suture is coupled to the control mechanism.

Preferably, the suturing mechanism has:

the proximal end of the first bracket is fixedly connected with the distal end surface of the transmission rack in the control base of the control mechanism, and the distal end of the first bracket is provided with a suture needle which can be penetrated by the suture thread in a rotating way;

the proximal end of the second bracket is fixedly connected with the distal end surface of the control base of the control mechanism, and the distal end of the second bracket is rotatably provided with a swing needle capable of hooking and pulling a suture line from the suture needle.

Preferably, the suturing mechanism further has:

a swinging rack fixed on the far end surface of the transmission rack;

a swing gear which can be meshed with the swing rack;

the swing shaft is supported on the second bracket, the proximal end of the swing shaft is connected with the swing gear, the distal end of the swing shaft is connected with the swing needle, and the swing rack and the swing gear can be driven by the driving of the transmission rack to drive the swing shaft and the swing needle to rotate, so that a suture line on the suture needle is pulled.

Preferably, the first bracket has:

one end cavity arranged at the far end of the first bracket, and the mounting end of the suture needle is arranged in the end cavity;

and the driving plate is slidably arranged on the outer side of the first bracket, and the distal end of the driving plate is in meshed connection with the mounting end of the suture needle.

Preferably, the first bracket further has:

the driving plate is arranged in the outer sliding groove in a sliding way;

an inner side chute capable of accommodating the suture needle, wherein the outer side chute is axially arranged on the inner side wall of the first bracket;

a needle end cap is covered on the end cavity.

Preferably, the second bracket further has:

the independent supporting cavity is arranged at the far end of the second bracket, the swing needle is arranged in the independent supporting cavity, and the independent supporting cavity is opposite to the first bracket surface and is provided with an opening for the suture needle to pass through.

Preferably, the suture tensioning mechanism has:

a unidirectional winding column capable of winding the suture thread and arranged on a control base of the control mechanism;

a tensioning balance wheel capable of tensioning the suture thread is arranged on the first bracket of the suture mechanism.

Preferably, the suture tensioning mechanism further has:

one end of the stretching tension spring is connected with the first bracket, and the other end of the stretching tension spring is connected with the tensioning balance wheel;

and the unidirectional friction wheel is arranged on the control base of the control mechanism and is matched with the unidirectional winding column.

Preferably, the positioning pushing mechanism has:

the pushing support is provided with a chute which is axially arranged, and the proximal end of the pushing support is fixed on the control mechanism;

a pushing piece which is slidably arranged in the chute of the pushing bracket,

and the nostril fixing bracket is connected with the distal end of the pushing element, and the pushing element pushes the nostril fixing bracket to a proper position in the nostril for supporting and positioning.

Preferably, the control mechanism has:

the control base is internally provided with a main gear, an angle adjusting gear coaxially arranged with the main gear and the transmission rack meshed with the main gear;

the movable handle is sleeved outside the angle adjusting gear at the far end and is in meshed connection with the angle adjusting gear, and is used for driving the angle adjusting gear to drive the main gear to rotate so as to drive the transmission rack;

the remote end of the base handle is fixedly connected with the proximal end of the control base, and the movable handle is hinged and matched with the base handle through the main gear and the angle adjusting gear.

The utility model has the positive progress effects that:

1) The positioning pushing mechanism of the pincer-shaped suture type nasal septum anastomat is provided with the nostril fixing bracket, can adapt to different nasal cavity environments, enlarges the application range of the pincer-shaped suture type nasal septum anastomat, can realize the accurate movement of the pincer-shaped suture type nasal septum anastomat in the nasal cavity, and improves the suture precision of suture tissues.

2) The utility model relates to a pincer-shaped suture type nasal septum anastomat, which comprises a control mechanism, a suture tensioning mechanism, a positioning pushing mechanism and a suture mechanism, wherein the distal end of the control mechanism is connected with the proximal end of the suture mechanism, the positioning pushing mechanism is fixed on the control mechanism, and the suture tensioning mechanism is connected on the control mechanism. The positioning pushing mechanism is pushed to the proper position of the nostril step by step and is used for positioning, at the moment, the suture mechanism reaches the position of the nasal septum to be sutured in the nasal cavity, then the control mechanism drives the balance needle of the suture mechanism to cooperate with the suture needle to suture the nasal septum, and at the moment, the suture thread led out after the suture thread tensioning mechanism is wound and tensioned is used for suturing the suture tissue. The suturing mechanism can directly enter the nasal cavity for operation, and solves the technical problem that the prior art lacks special instruments suitable for nasal septum suturing due to the narrow nasal cavity.

3) The control mechanism of the pincer-shaped suturing type nasal septum anastomat can be held by one hand of an operator for operation, the suturing mechanism is driven to suture the suturing tissue in the nasal cavity through the movement of the control mechanism, and meanwhile, the control mechanism is provided with the reset spring, so that the operation difficulty and fatigue of the operator can be reduced. Therefore, the operation difficulty of the nasal septum suture can be reduced, and the operation time is shortened.

Drawings

FIG. 1A is a schematic perspective view of a clip-on suturing type nasal septum stapler of the present utility model;

FIG. 1B is a schematic side view of a clip-on suturing nasal septum stapler of the present utility model;

FIG. 1C is another side view of the schematic structure of FIG. 1A;

FIG. 1D is an exploded view of the structure of the clip-on suturing type nasal septum stapler of the present utility model;

FIG. 2 is an exploded view of the overall structure of the control mechanism 20 of the present utility model;

fig. 3 is an exploded view of the internal structure of the control base 21 of the control mechanism 20 of the present utility model;

FIG. 4 is an exploded view of the overall construction of suture tensioning mechanism 40 of the present utility model;

FIG. 5 is an exploded view of the overall structure of the positioning pushing mechanism 30 of the present utility model;

FIG. 6A is an exploded view of the overall construction of the suturing mechanism 10 of the present utility model;

FIG. 6B is a schematic view of the overall structure of the suturing mechanism 10 of the present utility model;

fig. 7 is a schematic view of the operation of the suturing mechanism 10 of the present utility model.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

In the present utility model, "distal", "proximal", and "orientation" are used as terms commonly used in the field of medical devices, where "distal" refers to an end of a surgical procedure that is away from an operator and "proximal" refers to an end of a surgical procedure that is near an operator. "axial" refers to the length of the pushing mechanism. "radial" refers to a direction that vertically positions the axial direction of the pusher mechanism.

As shown in fig. 1, the clip-on suturing type nasal septum anastomat of the present utility model comprises: a suture mechanism 10 through which the suture thread 90 can suture the suture tissue, a control mechanism 20 for controlling the suture mechanism 10 to suture, a positioning pushing mechanism 30 which can be positioned in the nostril, and a suture tensioning mechanism 40 which can wind and tension the suture thread 90. The distal end of the control mechanism 20 is connected to the proximal end of the suturing mechanism 10, the proximal end of the positioning pusher mechanism 30 is fixed to the distal end of the control mechanism 20, and the suture tensioning mechanism 40 is connected to the distal end of the control mechanism 20 and the proximal end of the suturing mechanism 10.

As shown in fig. 2, the control mechanism 20 has a control base 21, and the control base 21 has a first wheel base plate 211 and a second wheel base plate 212, and the first wheel base plate 211 and the second wheel base plate 212 are disposed in parallel and in correspondence with each other with a certain distance therebetween. An omega-shaped concave hole is concavely formed in the outer side surface of the first wheel seat plate 211. The centers of the first and second wheel base plates 211 and 212 are respectively provided with a bearing 22. The control base 21 further has a rack seat 213, wherein two side edges of a proximal side surface of the rack seat 213 are fixedly connected with the first wheel seat plate 211 and the second wheel seat plate 212, a rack groove 2131 is formed on an inner side of a proximal end of the rack seat 213, and rail grooves 21311 are formed on two side walls of the rack seat 213.

As shown in fig. 3, the control base 21 is provided with a main gear 23, an angle adjusting gear 24, and a drive rack 25. The main gear 23 is located between the first and second wheel base plates 211 and 212, and is connected to both bearings 22 via a gear shaft 231. The angle adjusting gear 24 is coaxially arranged with the main gear 23, and the ratio of the radius of the main gear 23 to the radius of the angle adjusting gear 24 is 100:45 to 55, preferably 100:50. the guide rails 251 are respectively provided on both side surfaces of the driving rack 25, the guide rails 251 of the driving rack 25 are slidably inserted into the rail grooves 21311 of the rack grooves 2131 of the rack seat 213, and the driving rack 25 is engaged with the main gear 23 to realize the displacement of the angle adjusting gear 24 and the transmission of the torsion.

As further shown in fig. 2, the control mechanism 20 further has a movable handle 26, where a proximal end of the movable handle 26 is a long-strip handle or any other shape that can be used as a handle, and a distal end has an inner gear 261, and an inner ring of the inner gear 261 is toothed. The ring gear 261 at the distal end of the movable handle 26 is placed in the omega-shaped recess on the outer side of the first wheel base 211. The inner gear 261 at the distal end of the movable handle 26 is sleeved outside the angle adjusting gear 24 and is meshed with the angle adjusting gear 24, so as to complete the angle adjustment and the torque transmission. The movable handle 26 is used for driving the angle adjusting gear 24 to drive the main gear 23 to rotate so as to drive the transmission rack 25.

In this example, the control mechanism 20 further has a base handle 27, the base handle 27 may be elongated or otherwise shaped to serve as a handle, and the distal end of the base handle 27 is fixedly connected to the proximal end of the control base 21. The movable handle 26 is hinged with the base handle 27 through the main gear 23 and the angle adjusting gear 24, and a variable included angle is formed between the movable handle 26 and the base handle 27, so that the movable handle 26 can only move within a preset path range.

In this example, the control mechanism 20 also has a return spring 28. The base handle 27 has a first circular hole 271 on the inner side of the distal end, and the movable handle 26 has a second circular hole 262 on the inner side of the distal end, and the return spring 28 has one end connected to the first circular hole 271 and the other end connected to the second circular hole 262. When the movable handle 26 and the base handle 27 are compressed in pairs by the hand force of an operator, the restoring spring 28 stores the force, after the clamp-on suture type nasal septum anastomat finishes the suture action, the hand force of the operator is unloaded, and the restoring spring 28 resets to realize the automatic resetting of the base handle 27 and the movable handle 26, so that the operation difficulty and the fatigue feeling of the operator during operation can be reduced.

As further shown in fig. 3, the gear shaft 231 is sleeved with a washer 232 and a fastening nut 233 on one side of the angle adjusting gear 24, and the fastening nut 233 is composed of a hexagonal nut and a circular nut washer. A pre-tightening spring 234 is further arranged between the gasket 232 and the fastening nut 233, one end of the pre-tightening spring 234 is in contact with the gasket 232, and the other end is in contact with a circular nut gasket of the fastening nut 233. The gasket 232, the fastening nut 233 and the pre-tightening spring 234 can be fixedly installed on the annular gear 261 and the angle adjusting gear 24, so that the angle adjusting gear 24 is prevented from loosening in the sewing process.

As shown in fig. 4, the clip-on suture type nasal septum anastomat of the present utility model further comprises a suture tensioning mechanism 40, wherein the suture tensioning mechanism 40 has an omega-shaped wire fixing seat 41, and the omega-shaped lower end of the wire fixing seat 41 is fixed at the outer side of a rack seat 213 at the end of the control base 21 of the control mechanism 20. The suture tensioning mechanism 40 further has a unidirectional winding post 42, the unidirectional winding post 42 is fixed on a rack seat 213 at the end of the control base 21 of the control mechanism 20, and the unidirectional winding post 42 also passes through the middle position of the winding fixing seat 41.

In this example, suture tensioning mechanism 40 further includes a unidirectional friction wheel 43, unidirectional friction wheel 43 being a triangular ratchet structure, disposed on control base 21 of control mechanism 20. The unidirectional friction wheel 43 and the unidirectional winding column 42 move cooperatively, the unidirectional friction wheel 43 can only move to one side with smaller right-angle side, and when moving to the oblique side direction, the unidirectional friction wheel can prevent rotation, so that the unidirectional winding column 42 can only unidirectionally wire out, and the suture 90 can be prevented from loosening in the suture process.

In this example, the suture tensioning mechanism 40 further has a tensioning balance 44, the tensioning balance 44 is L-shaped overall, a tip of the tensioning balance 44L is connected to the first bracket 61 of the suture mechanism 60, and a turning point of the tensioning balance 44L is connected to one end of the tension spring 45. Suture tensioning mechanism 40 also has an extension spring 45 connected at one end to the turning point of tensioning balance 44L and at one end to first bracket 11 of suturing mechanism 10. After exiting unidirectional spool 42, suture 90 is wound into groove 441 at the upper end of tensioning balance 44 and threaded through wire guide 442 to be wound onto suturing mechanism 10. When the suture mechanism 10 moves, the tension balance 44 moves up and down with the first bracket 11, and swings left and right under the action of the tension spring 45 in cooperation with the tension of the suture 90, tensioning the suture 90.

As shown in fig. 5, the clip-on suturing type nasal septum anastomat of the present utility model further comprises a positioning pushing mechanism 30, wherein the positioning pushing mechanism 30 is provided with an elongated pushing bracket 31, and the proximal end of the pushing bracket 31 is fixed on the control mechanism 20. The pushing bracket 31 is provided with an axially arranged chute, the chute is provided with an upper chute 311 and a lower chute 312 which is radially communicated with the upper chute 311, and the upper parts of the two side chute walls of the upper chute 311 are provided with a plurality of triangular concave teeth. The cross section of the upper chute 311 is cross-shaped, and the cross section of the lower chute 312 is T-shaped.

In this example, the positioning pushing mechanism 30 further has a pushing member 32, and the pushing member 32 is slidably disposed in the chute of the pushing bracket 31. The pusher shoe has pusher bar 321 and finger pressure pusher block 322. The cross section of the pushing bar 321 is T-shaped, and is slidably arranged in the lower chute 312, and the distal end of the pushing bar 321 is also provided with a cylindrical vertical connecting column 3211. The cross section of the finger-pressure pushing block 322 is cross-shaped, the finger-pressure pushing block 322 can be slidably arranged in the upper chute 311, and the lower surface of the finger-pressure pushing block 322 is fixedly connected with the upper surface of the proximal end of the pushing bar 321. At least one elastic convex tooth which can be clamped into the triangular concave tooth is arranged on each of the two side walls of the finger pressing pushing block 322, when the finger pressing pushing block 322 is pressed, the elastic convex tooth is extruded to the lower parts of the two side groove walls of the upper sliding groove 311, so that the triangular concave tooth and the elastic convex tooth are released from being matched, and the finger pressing pushing block 322 can slide in the upper sliding groove 311. When the pressing is released, the elastic convex teeth automatically rebound by means of the structural material, and the upper surface of the finger pressing pushing block 322 is provided with an anti-slip convex strip, so that an anti-slip effect can be achieved when an operator operates to press the finger pressing pushing block 322.

In this example, the positioning pusher mechanism 30 also has a nostril-securing bracket 33 connected to the distal end of the pusher shoe 32. The nostril fixing support 33 has two truncated cone-shaped funnels 331, the surfaces of the two truncated cone-shaped funnels 331 are mesh or can be in contact with the inner part of the nasal cavity, and the two truncated cone-shaped funnels 331 are used for pushing the positioning pushing mechanism 30 to the appropriate position of the nostril step by step and positioning, at this time, the suturing mechanism 10 reaches the position of the nasal septum to be sutured in the nasal cavity, and then the control mechanism 20 drives the suturing mechanism 10 to suture the nasal septum. The nostril fixing bracket 33 further has a connecting frame 332, which is similar to a V-shape, a C-shape, a side door shape or other forms for connection and fixation, and two ends of the connecting frame 332 are fixedly connected with the side walls of the two round truncated cones 331 respectively. The middle part of the connecting frame 332 is provided with a round connecting hole 3321, and the connecting hole 3321 is fixedly connected with a vertical connecting column 3211 at the distal end of the pushing bar 321.

In a specific embodiment, when the operator performs the nasal septum suturing, the operator holds the base handle 27 and the movable handle 26 of the pincer-shaped suturing nasal septum anastomat with one hand, and applies force to the anti-slip convex strips on the finger pressure pushing block 322 outside the nasal cavity to push the finger pressure pushing block 322 of the positioning pushing mechanism 30 to slide distally in the upper chute 311, and the finger pressure pushing block 322 drives the pushing strip 321 to move distally in the lower chute 312, so as to drive the nostril fixing support 33 to move distally to reach the proper position of the nasal cavity. After the suturing mechanism 10 completes the suturing operation, the operator applies force to the anti-slip convex strips on the finger pressure pushing block 322 outside the nasal cavity to push the finger pressure pushing block 322 of the positioning pushing mechanism 30 to slide proximally in the upper sliding groove 311, and the finger pressure pushing block 322 drives the pushing strip 321 to slide proximally in the lower sliding groove 312 to withdraw the positioning pushing mechanism 30 from the nasal cavity.

As shown in FIG. 6A, the clip-on suturing type nasal septum anastomat of the present utility model further comprises a suturing mechanism 10, wherein the suturing mechanism 10 is provided with a suture thread 90 for suturing the suturing tissue. The suturing mechanism 10 has a first stent 11 that is generally elongate or any other shape that can be used as a stent. The proximal end of the first bracket 11 is fixedly connected with the distal end surface of the transmission rack 25 in the control base 21 of the control mechanism 20, and the first bracket 11 can move along with the movement of the transmission rack 25. The distal end of the first bracket 11 is provided with an end cavity 111, a round hole 1111 is arranged in the end cavity 111, and a suture needle 112 capable of penetrating the suture thread 90 is arranged in the round hole 1111. The suture needle 112 has a sharp nose at one end and is adapted to be threaded through tissue to be sutured with suture thread 90, and an incomplete gear at the other end. The first bracket 11 also has a suture needle end cover 113, which is covered on the end cavity 111 and cooperates with the suture needle 112 to ensure the stability of the suture needle 112.

In this example, the first frame 11 of the suturing mechanism 10 further has an outer chute 114 and an inner chute 115, the outer chute 114 being axially disposed on an outer sidewall of the first frame 11, the inner chute 115 being axially disposed on an inner sidewall of the first frame 11, the inner chute 115 being operable to receive the suturing needle 112. The first bracket 11 of the stitching mechanism 10 is also provided with a driving plate 116 which is slidably arranged in the outer side chute 114. The drive plate 116 has a retractable drive plate 1161 and a retractable bottom plate 1162, and the distal end of the retractable drive plate 1161 is fixedly connected to the proximal end of the retractable bottom plate 1162. The lower surface of the far end of the retracting bottom plate 1162 of the driving plate 116 is gear-shaped, is meshed with the incomplete gear end of the far end of the suture needle 112, and can realize the retraction of the suture needle 112 in the inner side chute 114 of the first bracket 11 during operation.

In this example, the suturing mechanism 10 also has a second stent 12 that is generally L-shaped or any other shape that can function as a stent. The proximal end of the second bracket 12 is fixedly connected with the distal end surface of the control base 21 of the control mechanism 20, and is kept relatively fixed with the control base 21, and the placement direction of the second bracket 12 is the same as that of the first bracket 11. The distal end of the second bracket 12 is provided with an independent supporting cavity 121, and the independent supporting cavity 121 is integrally in a cube or other hollow three-dimensional structure inside, wherein two sides of the independent supporting cavity are opened. The side of the independent support cavity 121 facing the first support 11 has an opening for the suture needle 112 to pass through, and the side opposite to the side having the opening is connected to the distal end of the second support 12.

In this example, the suturing mechanism 10 further has a swing rack 13 fixed at an intermediate position of the distal end face of the drive rack 25. The second bracket 12 of the stitching mechanism 10 is also provided with a pendulum shaft 122, the pendulum shaft 122 is supported and arranged in a shaft hole 123 on the second bracket 12, which is opposite to the side surface of the first bracket 11, the shaft hole 123 is arranged to facilitate the penetration of the pendulum shaft 122, and limit and support are provided for the pendulum shaft 122. A wobble gear 124 is connected to the proximal end of the wobble shaft 122, and the wobble gear 124 is engaged with the wobble rack 13. The distal end of the balance staff 122 is connected with a balance needle 125, and the balance needle 125 is placed in the independent supporting cavity 121 at the distal end of the second bracket 12. One end of the swing needle 125 is in a hook shape, the other end is fixedly connected to the distal end of the swing shaft 122, and the hook shape of the swing needle 125 can be matched with the suture needle 112 in the swing process to realize the taking and placing of the suture line 90. In the operation process, the driving of the driving rack 25 drives the swing rack 13 to do linear reciprocating motion, and then the swing rack 13 drives the swing gear 124 to do reciprocating rotation motion, so as to drive the swing shaft 122 and the swing needle 125 to rotate, thereby hooking the suture thread 90 on the suture needle 112.

Continuing with the same embodiment, after the suturing mechanism 10 reaches the appropriate position of the nasal cavity and the nostril fixing support 33 fixes the nasal cavity, the operator applies force outside the nasal cavity to push the retraction driving plate 1161 on the first support 11 to drive the retraction bottom plate 1162 to slide distally in the outer side sliding groove 114, so as to drive the suturing needle 112 to rotate, and the suturing needle 112 is screwed out from the inner side sliding groove 115 of the first support 11 to align with the opening of the independent support cavity 121 on the second support 12 facing the surface of the first support 11.

After the suture needle 112 is unscrewed, the hand of the operator applies force to drive the movable handle 26 to move within the range of the preset path, and the movable handle 26 drives the angle adjusting gear 24 to rotate to drive the main gear 23 to rotate, so that the transmission rack 25 is driven to do linear reciprocating motion.

As shown in fig. 7, the driving rack 25 drives the first bracket 11 fixedly connected with the driving rack 25 to move, so as to drive the suture needle 112 at the distal end of the first bracket 11 to approach the opening on the independent supporting cavity 121 at the distal end of the second bracket 12, which is opposite to the surface of the first bracket 11. The transmission rack 25 drives the first bracket 11 to move and simultaneously drives the swing rack 13 to move, when the swing rack 13 reaches a designated position, the swing rack is meshed with the swing gear 123 to drive the swing gear 124 to rotate, and the swing gear 124 drives the swing shaft 122 to do reciprocating and circulating rotation in the shaft hole 123 so as to drive the swing needle 125 at the tail end of the swing shaft 122 to do reciprocating rotation. The above steps can realize the cooperation of the swing needle 125 and the suture needle 112, and after the suture needle 112 drives the suture thread 90 to pass through the suture tissue, the hook end of the swing needle 125 can hook the suture thread 90.

After the suturing action of the needle 125 is completed, the operator pushes the retracting drive plate 1161 on the first bracket 11 outside the nasal cavity to drive the retracting bottom plate 1162 to slide proximally in the outer chute 114, so that the suturing needle 112 rotates back into the inner chute 115 of the first bracket 11. Then the operator applies force to the outer hand of the nasal cavity to push the finger pressure pushing block 322 of the positioning pushing mechanism 30 to slide proximally in the upper chute 311, withdraws the nostril fixing support 33, and withdraws the suturing mechanism 10 from the nasal cavity, so as to complete the suturing of the clamp-on suturing tissue by the nasal septum anastomat.

The pincer-shaped suturing type nasal septum anastomat is provided with the control mechanism 20, an operator can hold the control mechanism 20 by one hand to operate, the suturing mechanism 10 is further controlled to suture the suturing tissue, and the control mechanism 20 is further provided with the reset spring 28, so that the operation difficulty and fatigue of the operator can be reduced. The pincer-shaped suture type nasal septum anastomat can adapt to different nasal cavity environments through the design and distribution of the pushing and positioning mechanism 30, the application range of the pincer-shaped suture type nasal septum anastomat is enlarged, the accurate movement of the pincer-shaped suture type nasal septum anastomat in the nasal cavity can be realized, and the suture accuracy of suture tissues is improved. Suture tensioning mechanism 40 ensures that suture 90 can only be wound in one direction and provides a certain amount of tension to suture 90 during operation. The suturing mechanism 10 is operable to retract and extend the suturing needle 112, puncture and suture the nasal cavity. The design of the structure solves the problem of inconvenient operation in the traditional method, shortens the operation time and reduces the technical difficulty of the conventional nasal septum suture.

The present utility model has been described in detail with reference to the embodiments of the drawings, and those skilled in the art can make various modifications to the utility model based on the above description. Accordingly, certain details of the embodiments are not to be interpreted as limiting the utility model, which is defined by the appended claims.

Claims (10)

1. A positioning and pushing mechanism for a pincer-shaped suturing type nasal septum anastomat, which is characterized by comprising the following components:

the pushing support is provided with a chute which is axially arranged;

a pushing piece which is slidably arranged in the chute of the pushing bracket,

and the nostril fixing bracket is connected with the distal end of the pushing piece.

2. The positioning and pushing mechanism for a clip-on suturing type nasal septum anastomat as set forth in claim 1, wherein

The chute is provided with an upper chute and a lower chute which is radially communicated with the upper chute;

the pushing piece is provided with a pushing strip slidably arranged in the lower chute and a finger pressure pushing block slidably arranged in the upper chute, the distal end of the pushing strip is connected with the nostril fixing support, and the finger pressure pushing block is connected with the upper surface of the proximal end of the pushing strip.

3. The positioning pushing mechanism for a clip-on suturing type nasal septum anastomat as in claim 2, wherein

The upper part of the groove wall at the two sides of the upper chute is provided with a plurality of triangular concave teeth;

the two side walls of the finger pressing pushing block are respectively provided with at least one elastic convex tooth which can be clamped into the triangular concave tooth, and when the finger pressing pushing block is pressed, the elastic convex tooth is extruded to the lower parts of the two side groove walls of the upper sliding groove, so that the finger pressing pushing block can slide in the upper sliding groove.

4. The positioning pushing mechanism for a clip-on suturing type nasal septum anastomat as in claim 2, wherein

The upper surface of the finger-pressing pushing block is provided with an anti-slip raised line.

5. The positioning pushing mechanism for a clip-on suturing type nasal septum anastomat as in claim 2, wherein

The cross section of the upper chute is cross-shaped, and the cross section of the finger pressing pushing block is also cross-shaped.

6. The positioning pushing mechanism for a clip-on suturing type nasal septum anastomat as in claim 2, wherein

The cross section of the lower chute is T-shaped, and the cross section of the pushing strip is also T-shaped.

7. The clip on suturing nasal septum stapler of claim 2 wherein the distal end of the pusher bar has a vertical post through which the pusher bar is connected to the nostril securing bracket.

8. The clip-on suturing for the nasal septum anastomat of claim 2 wherein the nostril securing support comprises:

two round table funnels which can be positioned at proper positions of nostrils respectively;

and the two ends of the connecting frame are fixedly connected with the side wall of the truncated cone-shaped funnel respectively, and the middle part of the connecting frame is connected with the distal end of the pushing strip.

9. The positioning pushing mechanism for a clip-on suturing nasal septum stapler of claim 8, wherein

The connecting frame is similar to a V shape, and is similar to a C shape or a side door shape.

10. The positioning pushing mechanism for a clip-on suturing nasal septum stapler of claim 8, wherein

The middle part of the connecting frame is provided with a connecting hole, and the connecting hole is fixedly connected with a vertical connecting column at the far end of the pushing strip.