CN215608616U

CN215608616U - Gear-tooth traction type sheath pipe bending adjusting handle

Info

Publication number: CN215608616U
Application number: CN202120535560.2U
Authority: CN
Inventors: 钟长镐; 李时悦
Original assignee: First Affiliated Hospital of Guangzhou Medical University
Current assignee: Hangzhou Kunbo Biotechnology Co Ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2022-01-25
Anticipated expiration: 2031-03-15

Abstract

The embodiment of the utility model relates to the technical field of sheath pipe bending adjustment. The utility model discloses a gear tooth traction type sheath pipe bending adjusting handle, which comprises: the handle body, the sheath tube and the gear traction assembly; the handle body is formed by oppositely buckling an upper handle cover and a lower handle cover; the sheath tube is connected to the far end of the handle body, a pull rope is arranged in the sheath tube, and one end of the pull rope extending out of the sheath tube is connected with an electrode tip; the gear traction assembly is arranged on the holding part of the handle body and used for drawing the pull rope to be retracted and retracted so as to realize the bending adjustment action of the sheath tube. According to the gear tooth traction type sheath pipe bending adjusting handle, the pulling rope is pulled through the gear tooth traction assembly to enable the sheath pipe to be bent, the operation is simpler and more convenient, the flexibility of the sheath pipe is easy to control, and the problems that the position of the sheath pipe is difficult to adjust and the sheath pipe is difficult to stabilize after the position is adjusted in the prior art are solved.

Description

Gear-tooth traction type sheath pipe bending adjusting handle

Technical Field

The embodiment of the utility model relates to the technical field of sheath pipe bending adjustment, in particular to a gear-tooth traction type sheath pipe bending adjustment handle.

Background

In the operation processes of biopsy sampling, bacteriology, cytology examination and the like of a diseased region clinically by using a respiratory endoscope, a sheath tube (catheter) is often used as a channel to conveniently reach the diseased region.

In the prior art, the position of the sheath is difficult to adjust, the operation requirement of a doctor is extremely high, and the sheath is difficult to stably maintain at the current position after the position adjustment is finished.

Therefore, how to increase and provide an adjustable bent sheath tube adjusting handle with simple operation and accurate positioning is an urgent problem to be solved, and in view of this, a gear-tooth traction type sheath tube bending adjusting handle is provided.

SUMMERY OF THE UTILITY MODEL

The gear traction type sheath pipe bending adjusting handle provided by the embodiment of the utility model has the advantages that the sheath pipe is bent by the traction of the pull rope through the arranged gear traction assembly, the operation is simpler and more convenient, the bending degree of the sheath pipe is easy to control, and the problems that the position of the sheath pipe is difficult to adjust and the sheath pipe is difficult to stabilize after the position is adjusted in the prior art are solved.

The embodiment of the utility model provides a gear-tooth traction type sheath bending adjusting handle, which comprises: the handle body, the sheath tube and the gear traction assembly;

the handle body is formed by oppositely buckling an upper handle cover and a lower handle cover; the sheath tube is connected to the far end of the handle body, a pull rope is arranged in the sheath tube, and one end of the pull rope extending out of the sheath tube is connected with an electrode tip; the gear traction assembly is arranged on the holding part of the handle body and used for drawing the pull rope to be retracted and retracted so as to realize the bending adjustment action of the sheath tube. The gear traction assembly pulls the stay cord to enable the sheath pipe to be bent, the operation is simpler and more convenient, the flexibility of the sheath pipe is easy to control, the difficulty in adjusting the position of the sheath pipe in the prior art is solved, and the problem that the sheath pipe is difficult to stabilize after the position is adjusted is solved.

In one possible solution, the gear-pulling assembly comprises: the device comprises a wheel disc, a conical gear, an adjusting gear and a locking bolt;

the wheel disc is rotatably connected in the handle body, and one end of the pull rope extending into the handle body is wound on the wheel disc; the conical gear is fixed on the upper surface of the wheel disc; the adjusting gear is rotationally connected outside the handle body and is meshed with the conical gear, and the conical gear is pulled to rotate by rotating the adjusting gear, so that the conical gear drives the pulley disc to rotate along the axial direction, and the pull rope is wound and unwound on the pulley disc; the locking bolt is screwed on the upper handle cover in a threaded mode, and one end, screwed into the handle body, of the locking bolt abuts against the upper surface of the bevel gear to achieve locking. The adjusting gear is adopted to pull the bevel gear to rotate, so that the wheel disc is driven to rotate, the adjusting gear is convenient to use in the actual treatment process, the pull rope is wound and unwound on the wheel disc, and the operation is convenient and fast.

In a feasible scheme, the gear traction assembly further comprises a limiting block, the limiting block is fixed on the lower handle cover, and one end of the pull rope penetrates through a through hole in the limiting block and is wound on the wheel disc. The limiting block can limit the pull rope to enable one end of the pull rope to be wound on the outer surface of the wheel disc in a more uniform mode.

In a feasible scheme, a rotating shaft is arranged on the lower surface of the wheel disc, and the rotating shaft is rotatably connected to the lower handle cover through a bearing. The wheel disc 31 can rotate along the axial direction while the bearing 312 is used for supporting the wheel disc 31.

In a possible scheme, the bevel gear and the upper surface of the wheel disc are fixed through one of welding and bolt-nut connection. The stability of the structure is improved.

In one possible embodiment, a window is provided in the upper handle cover, and the side of the adjusting gear that protrudes into the upper handle cover through the window is engaged with the bevel gear. So that the adjusting gear 33 can project into the upper handle cover 11 through the window 111 to be engaged with the bevel gear 32.

In a possible solution, a rotating seat is provided on the outer surface of the upper handle cover at the position of the window, and the adjusting gear is rotatably connected outside the upper handle cover through the rotating seat. The adjusting gear 32 can realize the rotating effect, and the adjusting gear can be shifted forwards and backwards to realize the rotating traction effect.

In a possible solution, a screw hole is provided on the upper handle cover, and the locking bolt is screwed on the upper handle cover through the screw hole. The bevel gear 32 is locked by the one end of the locking bolt 34 screwed into the screw hole 113.

In one possible embodiment, the distal end of the handle body is screwed with a joint, and the proximal end of the sheath is fixed to the joint and extends into the handle body. The proximal end of the sheath tube is conveniently fixed at the distal end of the handle body by the joint, and the detachment is convenient.

In one possible embodiment, the proximal end face of the handle body is provided with two preformed holes. One of the two prefabricated holes is used for being connected with an external lead to electrify the electrode tip, and the other prefabricated hole is used for being connected with an external heat exchange medium conveying pipeline.

Based on the scheme, the gear traction assembly is arranged to pull the pull rope to bend the sheath tube, specifically, the adjusting gear is used for pulling the bevel gear to rotate so as to drive the wheel disc to rotate, the pull rope is wound and unwound on the wheel disc, the pull rope is in a tightening or releasing state, the pull rope inserted in the sheath tube pulls the sheath tube to bend, the operation is simpler and more convenient, the flexibility of the sheath tube is easy to control, and the problem that the sheath tube is difficult to adjust in the prior art and is difficult to stabilize after the position adjustment is finished is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a transverse cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of the handle body according to the present invention;

FIG. 4 is a longitudinal sectional view of a portion of the handle body of the present invention;

fig. 5 is a schematic view of the construction of the gear-pulling assembly of the present invention.

Reference numbers in the figures:

1. a handle body; 11. a handle cover is arranged; 111. a window; 112. a rotating seat; 113. a screw hole; 12. a lower handle cover; 13. a joint; 14. prefabricating holes; 2. a sheath tube; 21. pulling a rope; 22. an electrode tip; 3. a gear traction assembly; 31. a wheel disc; 311. a rotating shaft; 312. a bearing; 32. a bevel gear; 33. an adjusting gear; 34. locking the bolt; 35. a limiting block; 351. and (6) perforating.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for convenience in describing and simplifying the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 1 is a schematic overall structure diagram of the present invention, fig. 2 is a transverse cross-sectional view of the overall structure of the present invention, fig. 3 is a schematic structural diagram of a handle body of the present invention, and as shown in fig. 1 to fig. 3, a gear-tooth traction type sheath bending adjusting handle of the present embodiment includes: the handle comprises a handle body 1, a sheath tube 2 and a gear traction assembly 3;

the handle body 1 is formed by oppositely buckling an upper handle cover 11 and a lower handle cover 12, optionally, the upper handle cover 11 and the lower handle cover 12 of the handle body 1 in the embodiment can be buckled in a snap-fit manner, can also be buckled in a bolt and nut manner, and can also be integrally formed by injection molding;

the sheath tube 2 is connected to the far end of the handle body 1, a pull rope 21 is arranged in the sheath tube 2, and one end of the pull rope 21 extending out of the sheath tube 2 is connected with an electrode tip 22, so that a complete sheath tube bending adjusting handle body is formed, and the sheath tube 2 is used for probing into subcutaneous tissues of a patient to send the electrode tip into the focus of the patient for radio frequency treatment;

fig. 4 is a longitudinal sectional view of a part of the structure of the handle body of the present invention, fig. 5 is a schematic structural view of a wheel disc traction assembly of the present invention, and as shown in fig. 4 and fig. 5, a gear traction assembly 3 is disposed at the grip portion of the handle body 1 for retracting and releasing a traction rope 21 to realize a bending adjustment action of the sheath tube 2; in particular, the gear traction assembly 3 comprises: a wheel disc 31, a bevel gear 32, an adjusting gear 33, and a lock bolt 34; wherein, the wheel disc 31 is rotatably connected in the handle body 1, and one end of the pull rope 21 extending into the handle body 1 is wound on the wheel disc 31; a bevel gear 32 is fixed on the upper surface of the wheel disc 31; the adjusting gear 33 is rotationally connected outside the handle body 1, the adjusting gear 33 is meshed with the conical gear 32, and the conical gear 32 is pulled to rotate by rotating the adjusting gear 33, so that the conical gear 32 drives the wheel disc 31 to rotate along the axial direction, and the pull rope 21 is retracted on the wheel disc 31; the locking bolt 34 is screwed on the upper handle cover 11, and one end of the locking bolt 34 screwed into the handle body 1 abuts against the upper surface of the bevel gear 32 to realize locking. Therefore, when the gear traction assembly 3 bends the sheath tube 2 at the distal end of the handle body 1, a user holds the handle body 1 with a hand and stirs the adjusting gear 33 with a finger, so that the adjusting gear 33 pulls the wheel disc 31 mounted on the bevel gear 32 to rotate in the axial direction, in the embodiment, when the adjusting gear 33 is stired backwards, the pull rope 21 is wound on the wheel disc 31, so that the electrode tip 22 connected with the end of the pull rope 21 is pulled to be folded back in the winding process of the pull rope 21, at the moment, the sheath tube 2 bends under the action of the traction force, when the adjusting gear 33 is stired forwards, the pull rope 21 is released from the wheel disc 31, similarly, in the releasing process of the pull rope 21, the sheath tube 2 is expanded, when the proper bending degree is adjusted, one end screwed into the handle body 1 by the locking bolt 34 is abutted against the upper surface of the bevel gear 32, so that the bevel gear 32 cannot rotate, and the locking effect is realized, utilize this gear traction assembly 3 to transfer curved effect to the sheath pipe 2 of 1 distal end of handle body with this realization, the medical personnel of being convenient for transfer curved handle to the sheath pipe and transfer curved at the in-process of operation treatment, operate more portably, easily the crookedness of accuse sheath pipe 2, and can realize the position locking.

In addition, gear traction assembly 3 still includes stopper 35, and stopper 35 is fixed on lower handle cover 12, and the perforation 351 winding on rim plate 31 that the one end of stay cord 21 passed on stopper 35, and stopper 34 of being convenient for plays limiting displacement to stay cord 21 and makes its one end can more obey the winding at the surface of rim plate 31.

It should be noted that the lower surface of the wheel disc 31 is provided with a rotating shaft 311, the rotating shaft 311 is rotatably connected to the lower handle cover 12 through a bearing 312, the lower handle cover 12 is provided with a groove for mounting the bearing 312, so that the bearing 312 is fixed in the groove, and the bottom of the rotating shaft 311 is fixed at the inner ring of the bearing 312, so that the wheel disc 31 can rotate in the axial direction while the bearing 312 is used for supporting the wheel disc 31.

Specifically, the conical gear 32 and the upper surface of the wheel disc 31 are fixed through one of welding and bolt-nut connection, and in the embodiment, the conical gear 32 and the wheel disc 31 are connected into a whole through welding, so that the structural stability is improved.

Further, a window 111 is provided on the upper handle cover 11, and one side of the adjusting gear 33 extending into the upper handle cover 11 through the window 111 is engaged with the bevel gear 32, so as to facilitate the use of the adjusting gear 33, the width of the window 111 in this embodiment is larger than the width of the adjusting gear 33, and the length is larger than the length of the adjusting gear 33, so that the adjusting gear 33 can extend into the upper handle cover 11 through the window 111 to be engaged with the bevel gear 32.

Furthermore, a rotating base 112 is arranged at the position of the window 111 on the outer surface of the upper handle cover 11, the adjusting gear 33 is rotatably connected to the outside of the upper handle cover 11 through the rotating base 112, and the rotating base 112 is utilized to support the adjusting gear 33, and simultaneously, the rotating shaft on the rotating base 112 penetrates through the middle part of the adjusting gear 33, so that the adjusting gear 32 can be shifted forwards and backwards to realize the effect of rotating and pulling.

In addition, the upper handle cover 11 is provided with a screw hole 113, and the locking bolt 34 is screwed on the upper handle cover 11 through the screw hole 113, so that the screwing effect between the locking bolt 34 and the upper handle cover 11 can be realized by using the screw hole 113, and the conical gear 32 can be conveniently locked by using one end of the locking bolt 34 screwed into the screw hole 113.

Specifically, the distal end screw thread of handle body 1 has connect 13 soon, and the proximal end portion of sheath pipe 2 is fixed on connecting 13 to stretch into in the handle body 1, be convenient for utilize to connect 13 to fix the proximal end of sheath pipe 2 at the distal end of handle body 1, the split is convenient.

The terminal surface of handle body 1 near-end is equipped with two prefabricated holes 14, and two prefabricated holes 14 one is used for connecting external wire and carries out the circular telegram to electrode tip 22, and another is then be used for connecting external heat transfer medium conveying line for carry heat transfer medium to electrode tip 22 on, and pass through electrode tip 22 with heat transfer medium and coat the focus position at the patient, and the heat transfer medium of commonly using is physiological saline.

As can be seen from the above, when the gear-teeth-pulling sheath bending adjusting handle is used, the sheath 2 at the distal end of the handle body 1 is used to puncture into the subcutaneous tissue of a patient, and the electrode tip 22 at the distal end of the sheath 2 is delivered to the focus of the patient for radiofrequency ablation treatment, so that the sheath 2 needs to be bent in order to facilitate the accurate arrival position of the electrode tip 22, and the sheath can conveniently pass through the subcutaneous tissue, and the specific bending adjusting process is as follows: the handle body 1 pulls the pull rope 21 to drive the sheath pipe 2 to bend through the arranged gear pulling assembly 3, specifically, a user holds the handle body 1 by hand and pulls the adjusting gear 33 by fingers, so that the adjusting gear 33 pulls the wheel disc 31 arranged on the bevel gear 32 to rotate along the axial direction, when the adjusting gear 33 is pulled backwards in the embodiment, the pull rope 21 is wound on the wheel disc 31, so that the electrode tip 22 connected with the end part of the pull rope 21 is pulled to be folded back in the winding process of the pull rope 21, at the moment, the sheath pipe 2 bends under the action of the traction force, when the adjusting gear 33 is pulled forwards, the pull rope 21 is released from the wheel disc 31, similarly, in the releasing process of the pull rope 21, the sheath pipe 2 relaxes and when the proper curvature is adjusted, one end screwed into the handle body 1 by the locking bolt 34 is abutted against the upper surface of the bevel gear 32, so that the bevel gear 32 cannot rotate, realize the locking effect to this realization utilizes this gear traction assembly 3 to transfer curved effect to the sheath pipe 2 of 1 distal end of handle body, and the medical personnel of being convenient for transfer curved handle to the sheath pipe and transfer curved at the in-process of operation treatment, and it is more simple and convenient to operate, easily to the crookedness of accuse sheath pipe 2, and can realize the position locking, solves the position control difficulty of sheath pipe among the prior art, and finishes the back at the position control, difficult problem with the sheath pipe is stable.

In the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacting the first feature and the second feature or indirectly contacting the first feature and the second feature through an intermediate.

Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a gear traction type sheath pipe accent curved handle which characterized in that includes: the handle body, the sheath tube and the gear traction assembly;

the handle body is formed by oppositely buckling an upper handle cover and a lower handle cover;

the sheath tube is connected to the far end of the handle body, a pull rope is arranged in the sheath tube, and one end of the pull rope extending out of the sheath tube is connected with an electrode tip;

the gear traction assembly is arranged on the holding part of the handle body and used for drawing the pull rope to be retracted and retracted so as to realize the bending adjustment action of the sheath tube.

2. The gear tooth pulling sheath bending adjustment handle according to claim 1, wherein the gear pulling assembly comprises: the device comprises a wheel disc, a conical gear, an adjusting gear and a locking bolt;

the wheel disc is rotatably connected in the handle body, and one end of the pull rope extending into the handle body is wound on the wheel disc;

the conical gear is fixed on the upper surface of the wheel disc;

the adjusting gear is rotationally connected outside the handle body and is meshed with the conical gear, and the conical gear is pulled to rotate by rotating the adjusting gear, so that the conical gear drives the pulley disc to rotate along the axial direction, and the pull rope is wound and unwound on the pulley disc;

the locking bolt is screwed on the upper handle cover in a threaded mode, and one end, screwed into the handle body, of the locking bolt abuts against the upper surface of the bevel gear to achieve locking.

3. The gear tooth traction type sheath pipe bending adjusting handle according to claim 2, wherein the gear traction assembly further comprises a limiting block, the limiting block is fixed on the lower handle cover, and one end of the pull rope penetrates through a through hole in the limiting block and is wound on the wheel disc.

4. The gear-tooth traction type sheath pipe bending adjusting handle as claimed in claim 2, wherein a rotating shaft is arranged on the lower surface of the wheel disc, and the rotating shaft is rotatably connected to the lower handle cover through a bearing.

5. The gear-tooth traction type sheath bending adjusting handle according to claim 2, wherein the bevel gear and the upper surface of the wheel disc are fixed through one of welding and bolt-nut connection.

6. The gear-tooth traction type sheath bending adjusting handle according to claim 2, wherein a window is arranged on the upper handle cover, and one side of the adjusting gear, which extends into the upper handle cover through the window, is meshed with the conical gear.

7. The gear-tooth traction type sheath bending handle according to claim 6, wherein a rotating seat is arranged on the outer surface of the upper handle cover at the position of the window, and the adjusting gear is rotatably connected outside the upper handle cover through the rotating seat.

8. The gear-tooth traction type sheath bending adjusting handle according to claim 2, wherein a screw hole is formed in the upper handle cover, and the locking bolt is screwed on the upper handle cover through the screw hole.

9. The gear-tooth traction type sheath bending adjusting handle according to claim 1, wherein a joint is screwed on the distal end of the handle body, and the proximal end portion of the sheath is fixed on the joint and extends into the handle body.

10. The gear-tooth traction type sheath bending adjusting handle according to claim 1, wherein the end surface of the proximal end of the handle body is provided with two prefabricated holes.