CN216854838U - Sheath pipe bending adjusting handle and bending adjusting system - Google Patents

Abstract

The embodiment of the utility model discloses a sheath pipe bending adjusting handle and a bending adjusting system. The utility model relates to a sheath bending adjusting handle, which comprises: the handle comprises a handle body, a sheath tube, an electrode tip, a pull rope and a traction assembly; wherein the sheath is connected with the far end of the handle body; the electrode tip is connected to the tail end of the sheath tube; the pull rope is arranged in the sheath; the traction assembly is arranged at the holding part of the handle body and used for drawing the pull rope to be retracted and unfolded so as to realize the bending adjustment action of the sheath tube. The utility model also provides an adjustable bending system, comprising: the working channel and the sheath pipe bending adjusting handle are extended; and the extending working channel is connected with the sheath bending adjusting handle. The utility model discloses a split between electrode tip and the stay cord of being convenient for is changed the electrode tip, and pulls the stay cord through drawing the subassembly and makes the sheath pipe take place to buckle, operates more portably, easily the crookedness of accuse sheath pipe.

Description

Sheath pipe bending adjusting handle and bending adjusting system

Technical Field

The embodiment of the utility model relates to the technical field of sheath pipe bending adjustment, in particular to a sheath pipe bending adjustment handle and a bending adjustment system.

Background

The principle of the radio frequency ablation is that alternating high-frequency current with the frequency less than 30MHz (generally 460-480 kHz) is applied to enable ions in tissues at a focus to generate high-speed oscillation and rub with each other, radio frequency energy is converted into heat energy, and coagulation necrosis of focus cells is generated.

In the radio frequency ablation treatment, the used apparatus is a sheath tube bending handle, the distal end of the sheath tube bending handle pulls an electrode tip through a pull rope to bend, the electrode tip is penetrated into cell tissues around a focus position in a bending adjusting mode, and the focus cells can be solidified, denatured and necrotic by converting radio frequency energy emitted by the electrode tip into heat, so that the treatment purpose is achieved.

The utility model discloses a handle that bends is transferred to sheath pipe, including the electrode tip, the electrode tip is bent to the stay cord, and the stay cord is bent to the electrode tip, and the electrode tip is bent to the position control of sheath pipe, and the operation requirement to doctor is high moreover, and finishes at the position control after, also hardly keeps the sheath pipe at current position steadily. In view of this, we propose a sheath bending adjusting handle and a bending adjusting system.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a sheath bending adjusting handle and a bending adjusting system, wherein an electrode tip is connected to a pull rope of the sheath bending adjusting handle through an arranged bolt assembly, so that the electrode tip and the pull rope are conveniently detached, the sheath is bent by drawing the pull rope through an arranged drawing assembly, the operation is simpler and more convenient, the flexibility of the sheath is easy to control, and the problems that the electrode tip is inconvenient to replace and the position of the sheath is difficult to adjust in the prior art are solved.

The embodiment of the utility model provides a sheath bending adjusting handle, which comprises: the handle comprises a handle body, a sheath tube, an electrode tip, a pull rope and a 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; the electrode tip is connected to the tail end of the sheath tube; the pull rope is arranged in the sheath tube, one end of the pull rope is connected with the electrode tip, and the other end of the pull rope extends into the handle body; the traction assembly is arranged at 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. Connect electrode tip 3 on the stay cord of the handle that bends is transferred to the sheath pipe through the bolt subassembly 6 that sets up, the split between electrode tip 3 and the stay cord 4 of being convenient for, draw subassembly 5 through the setting and draw stay cord 4 to make sheath pipe 2 take place to buckle, operate more portably, easily control the crookedness of sheath pipe 2, solve among the prior art electrode tip not convenient for change to and the problem of the position control difficulty of sheath pipe.

In a possible scheme, the distal end of the handle body is screwed with a joint, and the end part of the sheath tube is fixed on 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 a feasible scheme, two prefabricated holes are formed in the end face of the proximal end of the handle body, and the prefabricated holes are formed by buckling semi-circular holes in the upper handle cover and the lower handle cover. 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.

In a feasible scheme, a medium flow hole, a fixing groove, a sensor mounting groove and a lead connecting groove which are horizontally arranged are formed in the proximal end surface of the electrode tip, a heat exchange medium flow channel which is vertically arranged is formed in the distal end of the electrode tip, and the heat exchange medium flow channel is communicated with the medium flow hole; the near end of the electrode tip is sleeved with a balance sleeve for distributing a heat exchange medium; the detachable bolt subassembly that is connected with in the fixed slot, just the bolt subassembly is used for with the electrode tip is connected on the stay cord. The electrode tip is connected to the pull rope of the sheath bending handle through the bolt assembly, so that the electrode tip and the pull rope can be conveniently detached.

In a feasible scheme, at least one group of limiting grooves are formed in the side wall of the fixing groove, and arc-shaped grooves are communicated with one ends, extending into the fixing groove, of the limiting grooves; the latch assembly includes: a pin and a spring; wherein the pull cord is connected to the proximal end of the pin rod; the far end of the pin rod is provided with at least one group of limiting columns; the pin rod is inserted in the process of the fixed groove, the limiting column slides into the limiting groove, the pin rod is inserted into the bottom of the fixed groove, the spring is compressed, and the pin rod is rotated to enable the limiting column to slide into the arc-shaped groove for locking. Through pin rod and fixed slot cooperation, spacing post and spacing groove, arc wall cooperation, realize the split between pin rod and the electrode tip, it is easy and simple to handle, be convenient for utilize the pin rod to connect the stay cord of sheath pipe accent curved handle as intermediate junction spare.

In one possible solution, the proximal end of the pin is provided with a knob. The pin rod is convenient to rotate through the knob.

In one possible embodiment, the medium flow opening is arranged in the axial direction of the proximal end face of the electrode head;

the fixing groove, the sensor mounting groove and the lead connecting groove are arranged along the radial direction of the proximal end face of the electrode head.

In one possible embodiment, the medium flow opening is used for supplying a heat exchange medium; the sensor mounting groove is used for mounting a temperature detection device; the wire connecting groove is used for being provided with a conductive device.

In a feasible scheme, the temperature detection device is a temperature sensor, so that the temperature sensor can be used for sensing the temperature change of the focus of the patient in real time, and medical staff can conveniently control the heating condition of the electrode head on the focus of the patient in real time; the conductive device is a copper column.

In a feasible scheme, rubber pads which play an insulating effect are arranged in the medium flow hole, the fixing groove and the sensor mounting groove. Prevent other devices in the open hole or the open groove from being damaged by electric shock.

In one possible embodiment, the equalizing sleeve is provided with a plurality of infiltration holes. The heat exchange medium can flow out from the infiltration holes and can be uniformly coated on the focus of a patient.

In a feasible scheme, the aperture of the infiltration hole is arranged to be small at the outside and large at the inside. The infiltration holes with small outside and large inside can reduce the flow of the heat exchange medium flowing out of the outlet of the infiltration hole, thereby increasing the flow rate of the heat exchange medium, enabling the heat exchange medium to overflow a farther stroke when flowing out, and better attaching the heat exchange medium to the focus of a patient.

In one possible solution, the traction assembly comprises: the wheel disc, the crank and the locking bolt;

the wheel disc is rotatably connected inside the handle body, and one end of the pull rope extending into the handle body is wound on the wheel disc; the crank is arranged outside the handle body and used for driving the wheel disc to rotate along the axial direction, so that the pull rope is retracted and extended on the wheel disc; the locking bolt is in threaded connection with one side of the handle body, and the locking bolt is screwed into one end in the handle body and abuts against the wheel disc to be locked. The mode that the crank is adopted to pull the wheel disc to rotate is convenient to use in the actual treatment process, so that the pull rope is wound and unwound on the wheel disc, and the operation is convenient and fast.

In a feasible scheme, the traction assembly further comprises a limiting block, the limiting block is fixed in the handle body, 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 first rotating shaft is arranged on the upper end face of the wheel disc, and a second rotating shaft is arranged on the lower end face of the wheel disc; the first rotating shaft extends out of the upper handle cover and is fixedly connected with the crank; the second rotating shaft is rotatably connected in the groove on the lower handle cover. The two rotating shafts are used for facilitating the rotation of the crank traction wheel around the central axis where the first rotating shaft and the second rotating shaft are located.

In a possible scheme, a through hole is formed in the upper handle cover, and the first rotating shaft extends out of the upper handle cover through the through hole; one end of the first rotating shaft, which extends out of the upper handle cover, is fixedly connected with the crank through a fixed bolt. The through holes are convenient to use, so that the first rotating shaft extends out of the upper handle cover to be fixed with the crank, the crank can pull the wheel disc to rotate, and the fixing bolt is convenient to connect and fix the first rotating shaft and the crank.

In a possible solution, an annular groove is provided at an end of the first rotating shaft, and the annular groove is used for limiting the first rotating shaft in the through hole. The use of ring channel can be spacing first pivot and through-hole contact site, prevents that the pivoted in-process of first pivot from taking place to rock.

In a feasible scheme, a soft rubber sleeve is sleeved on the crank handle. Utilize the flexible glue sleeve pipe can increase the frictional force on user's finger and crank surface, the rotation of the better handle control crank of the user of being convenient for.

In one possible embodiment, the locking bolt is screwed to one side of the lower handle cover by a threaded pipe, and the threaded pipe is fixed to an outer surface of the lower handle cover and communicates with an inside of the lower handle cover. Utilize the screwed pipe can increase the spiral stroke of locking bolt, make the structure of its spiral position more firm to this realization utilizes the locking of locking bolt to the rim plate.

An embodiment of the present invention further provides an adjustable bending system, including: the working channel and the sheath pipe bending adjusting handle are extended; and the extension working channel is connected with the sheath bending adjusting handle.

Based on the scheme, the beneficial effects of the utility model are as follows:

1. the electrode tip is replaced through the arranged bolt assembly, specifically, the end part of the pin rod is aligned to the fixed groove, the limiting column at the end part of the pin rod is aligned to the limiting groove, the pin rod is pushed to compress the spring, the pin rod is rotated clockwise to enable the limiting column to slide into the arc-shaped groove for locking, and similarly, the pin rod is rotated anticlockwise to enable the limiting column in the arc-shaped groove to slide into the position where the limiting groove is communicated with the arc-shaped groove;

2. draw the stay cord through the subassembly that pulls that sets up and make the sheath pipe take place to buckle, specifically do, utilize the crank to draw the rim plate and prolong axial rotation for the stay cord receive and releases on the rim plate, with this realize that the stay cord tightens up or the state of releasing, alternate in the intraductal stay cord of sheath and pull the sheath pipe again and take place to buckle, it is more simple and convenient to operate, easily to the crookedness of accuse sheath pipe, the position control difficulty of sheath pipe among the solution prior art, and after the position control finishes, the difficult problem of stabilizing the sheath pipe.

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 overall structure diagram of a first embodiment of the present invention;

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

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

fig. 4 is a schematic view of an electrical connector mounting structure according to an embodiment of the present invention;

fig. 5 is a sectional view of an electrode tip mounting structure in accordance with an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an electrode head in the first embodiment of the present invention;

FIG. 7 is a schematic diagram of a balanced casing structure according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a kingpin assembly according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of a mounting structure of a tow assembly in accordance with an embodiment of the present invention;

FIG. 10 is a schematic view of a traction assembly according to an embodiment of the present invention;

fig. 11 is a schematic overall structure diagram of a second embodiment of the present invention.

Reference numbers in the figures:

1. a handle body; 11. a handle cover is arranged; 111. a through hole; 12. a lower handle cover; 121. a groove; 13. a joint; 14. prefabricated hole

2. A sheath tube;

3. an electrode tip; 31. a media flow aperture; 32. fixing grooves; 321. a limiting groove; 322. an arc-shaped slot; 33. a sensor mounting groove; 34. a wire connecting groove; 35. a heat exchange medium flow passage;

4. pulling a rope;

5. a traction assembly; 51. a wheel disc; 511. a first rotating shaft; 512. a second rotating shaft; 513. fixing the bolt; 52. a crank; 521. a soft rubber sleeve; 53. locking the bolt; 531. a threaded pipe; 54. a limiting block; 541. perforating;

6. a plug pin assembly; 61. a pin rod; 611. a limiting column; 612. a knob; 62. a spring;

7. equalizing the casing; 71. infiltrating the pores;

8. extending the working channel.

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 means of the present invention will be described in detail with reference to 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.

In the radio frequency ablation treatment, the used apparatus is a sheath tube bending adjusting handle, the distal end of the sheath tube bending adjusting handle pulls the electrode head to adjust the bending through the pull rope, and the electrode head is penetrated into the cell tissue around the focus position by the bending adjusting mode to treat.

When the existing sheath tube bending adjusting handle is used, the electrode tip and the pull rope of the bending adjusting handle are not convenient to split, and meanwhile, the bending adjusting handle is very difficult to adjust the position of the sheath tube, and after the position is adjusted, the sheath tube is difficult to stably keep at the current position

Example 1

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention; FIG. 2 is a cross-sectional view of the overall structure of the first embodiment of the present invention; as shown in fig. 1 and 2, a sheath bending adjustment handle of the present embodiment includes: the handle comprises a handle body 1, a sheath tube 2, an electrode tip 3, a pull rope 4 and a traction assembly 5;

wherein, the handle body 1 is formed by oppositely buckling an upper handle cover 11 and a lower handle cover 12; the sheath tube 2 is connected with the far end of the handle body 1; the electrode tip 3 is connected to the end of the sheath tube 2; the pull rope 4 is arranged in the sheath tube 2, one end of the pull rope 4 is connected with the electrode tip 3, and the other end of the pull rope 4 extends into the handle body 1; the traction assembly 5 is arranged at the holding part of the handle body 1 and used for drawing the pulling rope 4 to retract and realize the bending adjustment action of the sheath tube 2. Thus forming a complete radio frequency sheath bending handle, and the sheath 2 is used for inserting into the subcutaneous tissue of the patient and sending the electrode head into the focus of the patient for radio frequency treatment.

Fig. 3 is a schematic structural view of a handle body according to an embodiment of the present invention, and as shown in fig. 3, an upper handle cover 11 and a lower handle cover 12 of the handle body 1 according to the embodiment of the present invention may be fastened by a snap-fit connection, may be fastened by a bolt and nut connection, and may also be integrally injection-molded;

fig. 4 is a schematic view of an electrical connector mounting structure according to an embodiment of the present invention; fig. 5 is a sectional view of an electrode head mounting structure in the first embodiment of the present invention; FIG. 6 is a schematic structural diagram of an electrode head in the first embodiment of the present invention; FIG. 7 is a schematic diagram of a balanced casing structure according to an embodiment of the present invention; FIG. 8 is a schematic structural diagram of a kingpin assembly according to an embodiment of the present invention; as shown in fig. 4 to 8, the proximal end surface of the electrode tip 3 is opened with a medium flow hole 31, a fixing groove 32, a sensor mounting groove 33 and a lead wire receiving groove 34 which are horizontally arranged, the distal end of the electrode tip 3 is opened with a heat exchange medium flow passage 35 which is vertically arranged, and the heat exchange medium flow passage 35 is communicated with the medium flow hole 31; wherein the medium flow openings 31 are arranged in the axial direction of the proximal end face of the electrode head 3; the fixing groove 32, the sensor mounting groove 33 and the lead wire connecting groove 34 are arranged along the radial direction of the proximal end face of the electrode head 3, and the medium flowing hole 31 is used for inputting a heat exchange medium; the sensor mounting groove 33 is used for mounting a temperature detection device; the wire receiving groove 34 is used for mounting a conductive device.

Furthermore, the temperature detection device is a temperature sensor, the temperature sensor is electrically connected with the microcontroller in the sheath bending handle, and is used for reading the temperature of the focus of the patient contacted by the electrode head 3 and transmitting the temperature to medical staff in time by digital information, so that the medical staff can monitor the temperature change of the focus of the patient conveniently; the conductive device is a copper column, the copper column has good conductivity, radio frequency energy can be conveniently converted into heat energy to be transferred to the electrode tip 3 to carry out radio frequency treatment on the focus of a patient, and when the conductive device is used specifically, other conductive materials can be adopted as the conductive device besides the copper column.

It should be noted that rubber pads having an insulating effect are disposed in the medium flowing hole 31, the fixing groove 32, and the sensor mounting groove 33. Because electrode tip 3 can be through the electrically conductive device circular telegram at the in-process of work, consequently in order to avoid electrode tip 3 electric leakage to and prevent to damage behind the electric shock of other devices, utilize the rubber pad to carry out insulation treatment to medium flow hole 31, fixed slot 32 and sensor mounting groove 33, during the specific use, can also adopt insulating material cushion such as PVC to replace the use except that the rubber pad.

In this embodiment, the proximal end of the electrode head 3 is sleeved with a balance sleeve 7 for distributing a heat exchange medium; the equalizing sleeve 7 is provided with a plurality of wetting holes 71. Therefore, after entering the medium flow hole 31, the heat exchange medium input from the sheath tube flows out from the heat exchange medium flow channel 35, and overflows through the plurality of infiltration holes 71 arranged on the balance sleeve 7 to reach the focus of the patient, and a heat exchange medium protective film is formed at the focus of the patient.

Specifically, the pore diameter of the infiltration holes 71 is set to be small at the outside and large at the inside. Because electrode tip 3 can be through the electrically conductive device circular telegram at the in-process of work, consequently in order to avoid electrode tip 3 electric leakage to and prevent to damage behind the electric shock of other devices, utilize the rubber pad to carry out insulation treatment to medium flow hole 31, fixed slot 32 and sensor mounting groove 33, during the specific use, can also adopt insulating material cushion such as PVC to replace the use except that the rubber pad.

In this embodiment, detachable is connected with bolt subassembly 6 in the fixed slot 32, and bolt subassembly 6 is used for connecting electrode tip 3 on stay cord 4, and is concrete, and bolt subassembly 6 includes: a pin 61 and a spring 62; wherein the pull cord 4 is connected to the proximal end of the pin rod 61; the distal end of the pin 61 is provided with at least one set of limiting columns 611; in order to cooperate with the use of the plug pin assembly 3, at least one set of limiting grooves 321 is formed in the side wall of the fixing groove 32, and an arc-shaped groove 322 is communicated with one end, extending into the fixing groove 32, of each limiting groove 321; during the use, the in-process in the fixed slot 32 is inserted to pin 61, spacing post 611 slides in the spacing groove 321, and compression spring 62 when pin 61 inserts the fixed slot 32 bottom, rotate pin 61 and make spacing post 611 slide in the arc wall 322 and carry out the locking, and similarly, when split pin 61 and electrode tip 3, anticlockwise rotation pin 61 for spacing post 611 slides in spacing groove 321 and the arc wall 322 intercommunication position in the arc wall 322, at this moment under the elastic action of spring 62, pop out pin 61 in fixed slot 32, with this separation between realization pin 61 and the electrode tip 3, easy and simple to handle.

Further, the proximal end of the pin 61 is provided with a knob 612. The pin shaft 61 is rotated by the knob 612, and the knob 612 may be disposed on a side surface of the proximal end of the pin shaft 61 in a flat shape, or disposed on an end surface of the proximal end of the pin shaft 61 in a truncated cone shape.

FIG. 9 is a cross-sectional view of a mounting structure of a tow assembly in accordance with one embodiment of the present invention; FIG. 10 is a schematic view of a traction assembly according to an embodiment of the present invention; as shown in fig. 9-10, the tow assembly 5 includes: a wheel disc 51, a crank 52, and a lock bolt 53; wherein, the wheel disc 51 is rotatably connected inside the handle body 1, and one end of the pull rope 4 extending into the handle body 1 is wound on the wheel disc 51; the crank 52 is arranged outside the handle body 1 and is used for driving the wheel disc 51 to rotate along the axial direction, so that the pull rope 4 is retracted and extended on the wheel disc 51; the locking bolt 53 is screwed on one side of the handle body 1, and one end of the locking bolt 53 screwed into the handle body 1 abuts against the wheel disc 51 for locking. Therefore, when the traction assembly 3 bends the sheath tube 2 at the distal end of the handle body 1, the wheel disc 51 is axially rotated by rotating the crank 52, in the embodiment, when the crank 52 is rotated anticlockwise, the pull rope 4 is wound on the wheel disc 51, so that the electrode tip 3 connected with the end part of the pull rope 4 is pulled to be folded back in the winding process of the pull rope 4, the sheath tube 2 is bent under the action of traction force, when the crank 52 is rotated clockwise, the pull rope 4 is released from the wheel disc 51, similarly, in the releasing process of the pull rope 4, the sheath tube 2 is relaxed, and the rotating position of the wheel disc 51 is fixed by using the locking bolt 53 after adjustment, so that the effect of bending the sheath tube 2 at the distal end of the handle body 1 by using the traction assembly 3 is realized, a medical worker can bend the sheath tube bending handle in the process of surgical treatment, the operation is simpler and more convenient, and the bending degree of the sheath tube 2 is easy to control, and position locking can be achieved.

Further, the traction assembly 5 further comprises a limiting block 54, the limiting block 54 is fixed in the handle body 1, and one end of the pull rope 4 passes through a through hole 541 in the limiting block 54 and is wound on the wheel disc 51. The limiting block 54 can limit the pull rope 4 to enable one end of the pull rope to be wound on the outer surface of the wheel disc 51 more closely.

Specifically, the upper end surface of the wheel disc 51 is provided with a first rotating shaft 511, and the lower end surface of the wheel disc 51 is provided with a second rotating shaft 512; wherein, the first rotating shaft 511 extends out of the upper handle cover 11 and is fixedly connected with the crank 52; the second shaft 512 is rotatably coupled in the recess 121 of the lower handle cover 12. The two rotating shafts are used for facilitating the rotary connection of the wheel disc 51 in the cavity between the upper handle cover 11 and the lower handle cover 12 respectively, so that the crank 52 pulls the wheel disc 51 to rotate around the central axes of the first rotating shaft 511 and the second rotating shaft 512.

It should be noted that the upper handle cover 11 is provided with a through hole 111, and the first rotating shaft 511 extends out of the upper handle cover 11 through the through hole 111; one end of the first rotary shaft 511 extending out of the upper handle cover 11 is fixedly connected to the crank 52 by a fixing bolt 513. The first rotating shaft 511 is extended out of the upper handle cover 11 by the through hole 111 to be fixed with the crank 52, so that the crank 52 can pull the wheel disc 51 to rotate.

In addition, an annular groove is provided at an end of the first rotating shaft 511, and the annular groove is used to limit the first rotating shaft 511 in the through hole 111. The use of the annular groove can limit the contact part of the first rotating shaft 511 and the through hole 111, and prevent the first rotating shaft 511 from shaking in the rotating process

Further, a soft rubber sleeve 521 is sleeved on the crank 52. The friction between the fingers of the user and the surface of the crank 52 can be increased by using the soft rubber sleeve 521, so that the user can rotate the crank 52 better.

Specifically, the locking bolt 53 is screwed to one side of the lower handle cover 12 through a threaded pipe 531, and the threaded pipe 531 is fixed to the outer surface of the lower handle cover 12 to communicate with the inside of the lower handle cover 12. The spiral stroke of the locking bolt 53 can be increased by using the threaded pipe 531, so that the structure of the spiral position is more stable, and the locking of the wheel disc 51 by using the locking bolt 53 is realized.

Specifically, the distal end of the handle body 1 is screwed with the joint 13, and the end of the sheath tube 2 is fixed on the joint 13 and extends into the handle body 1. The proximal end of the sheath tube 2 can be conveniently fixed at the distal end of the handle body 1 by the joint 13, and the detachment is convenient.

In addition, the end face of the proximal end of the handle body 1 is provided with two prefabricated holes 14, and the prefabricated holes 14 are formed by buckling semicircular holes on the upper handle cover 11 and the lower handle cover 12. Two prefabricated holes 14 one is used for connecting external wire and carries out the circular telegram to electrode tip 3, and the other is then to be used for connecting external heat transfer medium conveying line for carry heat transfer medium to electrode tip 3 on, and pass through electrode tip 3 with heat transfer medium and coat the focus position of patient, and the heat transfer medium of commonly using is normal saline.

It can be seen from the above that, a sheath pipe bending handle of this embodiment is when using, connect electrode tip 3 on the stay cord of sheath pipe bending handle through the bolt subassembly 6 that sets up, the split between the electrode tip 3 of being convenient for and the stay cord 4, pull stay cord 4 through the subassembly 5 that pulls that sets up and make sheath pipe 2 take place the bending, it is simpler and more convenient to operate, easily the crookedness of accuse sheath pipe 2, it is not convenient for change to solve the electrode tip among the prior art, and the problem of the position control difficulty of sheath pipe, specifically do:

in the process of replacing the electrode tip, the end part of the pin rod 61 is aligned with the fixing groove 32, the limiting column 611 at the end part of the pin rod 61 is aligned with the limiting groove 321, and the pin rod 61 is pushed into the fixing groove 32, so that the spring 62 is compressed at one end of the pin rod 61 inserted into the fixing groove 32, and the pin rod 61 is rotated clockwise to enable the limiting column 611 to slide into the arc-shaped groove 322 for locking, similarly, when the pin rod 61 and the electrode tip 1 are disassembled, the pin rod 61 is rotated anticlockwise to enable the limiting column 611 in the arc-shaped groove 322 to slide into the communicating part of the limiting groove 321 and the arc-shaped groove 322, at the moment, under the elastic action of the spring 62, the pin rod 61 is ejected out of the fixing groove 32, so that the separation between the pin rod 61 and the electrode tip 3 is realized, and the replacement of the electrode tip is convenient for medical staff to carry out the replacement of the electrode tip in the daily use process;

transfer curved in-process, two prefabricated holes 14 of handle body 1 near-end are used for connecting external wire and heat transfer medium conveying pipeline respectively, switch on and coat heat transfer medium through electrode tip 3 to patient's focus department to electrode tip 3, and simultaneously, the subcutaneous tissue of patient is punctured into sheath pipe 2 through the traction of handle body 1, and make electrode tip 3 reach the internal focus position of patient, and at the in-process that draws, for the convenience of reaching that electrode tip 3 can be accurate the position need transfer curved to sheath pipe 2, and make things convenient for it to walk at subcutaneous tissue, the process of specifically transferring curved is: the handle body 1 pulls the pull rope 4 to drive the sheath tube 2 to bend through the arranged pulling assembly 5, specifically, the wheel disc 51 is enabled to rotate along the axial direction through rotating the crank 52, when the crank 52 is rotated anticlockwise in the embodiment, the pull rope 4 is wound on the wheel disc 51, so that the electrode tip 3 connected with the end part of the pull rope 4 is pulled to be folded back in the winding process, the sheath tube 2 is bent under the action of the pulling force at the moment, when the crank 52 is rotated clockwise, the pull rope 4 is released from the wheel disc 51, similarly, in the releasing process of the pull rope 4, the sheath tube 2 is relaxed, and the rotating position of the wheel disc 51 is fixed by using the locking bolt 53 after adjustment, so that the effect of adjusting the sheath tube 2 at the far end of the handle body 1 by using the pulling assembly 5 is realized, medical personnel can adjust the bending of the sheath tube in the operation treatment process, adjust the bending handle of the sheath tube, the operation is simpler and more convenient, and the bending degree of the sheath tube 2 is easy to control, and can realize the position locking, solve the position control difficulty of sheath pipe among the prior art, and after the position control finishes, difficult sheath pipe stable problem.

Example 2

Fig. 11 is a schematic overall structural view of a second embodiment of the present invention, and the second embodiment is an improved scheme based on the first embodiment, as shown in fig. 11, the improvement is to provide an adjustable bending system, including: the extending working channel 8 and the sheath bending adjusting handle; and the extension working channel 8 is connected with the sheath bending handle, and the extension working channel 8 is connected on the handle body 1 through a prefabricated hole 14 on the handle body 1.

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 (10)

1. The utility model provides a sheath pipe accent curved handle which characterized in that includes: the handle comprises a handle body, a sheath tube, an electrode tip, a pull rope and a 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;

the electrode tip is connected to the tail end of the sheath tube;

the pull rope is arranged in the sheath tube, one end of the pull rope is connected with the electrode tip, and the other end of the pull rope extends into the handle body;

the subassembly that pulls sets up the portion of gripping of handle body includes: the wheel disc, the crank and the locking bolt; the wheel disc is rotatably connected inside the handle body, and one end of the pull rope extending into the handle body is wound on the wheel disc; the crank is arranged outside the handle body and used for driving the wheel disc to rotate along the axial direction, so that the pull rope is retracted and extended on the wheel disc; the locking bolt is in threaded connection with one side of the handle body, and the locking bolt is screwed into one end in the handle body and abuts against the wheel disc to be locked.

2. The sheath bending adjustment handle according to claim 1, wherein: the distal end screw thread of handle body has connect soon, just the tip of sheath pipe is fixed on the joint, and stretch into in the handle body.

3. The sheath bending adjustment handle according to claim 1, wherein: the terminal surface of handle body near-end is equipped with two prefabricated holes, just prefabricated hole by form after the semicircular hole lock on upper handle lid and the lower handle lid.

4. The sheath bending adjustment handle according to claim 1, wherein: the near end surface of the electrode tip is provided with a medium flow hole, a fixing groove, a sensor mounting groove and a lead connecting groove which are horizontally arranged, the far end of the electrode tip is provided with a heat exchange medium flow passage which is vertically arranged, and the heat exchange medium flow passage is communicated with the medium flow hole;

the near end of the electrode head is sleeved with a balance sleeve for distributing heat exchange media;

the detachable bolt subassembly that is connected with in the fixed slot, just the bolt subassembly is used for with the electrode tip is connected on the stay cord.

5. The sheath bending adjustment handle according to claim 4, wherein: the side wall of the fixed groove is provided with at least one group of limiting grooves, and one ends of the limiting grooves extending into the fixed groove are communicated with arc-shaped grooves;

the latch assembly includes: a pin and a spring;

wherein the pull cord is connected to the proximal end of the pin rod;

the far end of the pin rod is provided with at least one group of limiting columns;

the pin rod is inserted in the process of the fixed groove, the limiting column slides into the limiting groove, the pin rod is inserted into the bottom of the fixed groove, the spring is compressed, and the pin rod is rotated to enable the limiting column to slide into the arc-shaped groove for locking.

6. The sheath bending adjustment handle according to claim 5, wherein: the near end of the pin rod is provided with a knob.

7. The sheath bending adjustment handle according to claim 4, wherein: the medium flow holes are arranged in the axial direction of the proximal end face of the electrode head;

the fixing groove, the sensor mounting groove and the lead connecting groove are arranged along the radial direction of the proximal end face of the electrode head.

8. The sheath bending adjustment handle according to claim 7, wherein: the medium flow hole is used for inputting a heat exchange medium;

the sensor mounting groove is used for mounting a temperature detection device;

the wire connecting groove is used for being provided with a conductive device.

9. The sheath bending adjustment handle according to claim 8, wherein: the temperature detection device is a temperature sensor;

the conductive device is a copper column.

10. An adjustable bending system, comprising: extending the working channel and the sheath bending handle of any of claims 1-9;

and the extension working channel is connected with the sheath bending adjusting handle.

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