CN216439300U - Sheath pipe bending adjusting handle - Google Patents

Abstract

The embodiment of the utility model discloses a sheath bending adjusting handle, which comprises a handle body and an electrode tip connected to the tail end of a sheath of the handle body, wherein 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, and a heat exchange medium flow channel which is vertically arranged is formed in the far end of the electrode tip; the detachable bolt subassembly that is connected with in the fixed slot, just the bolt subassembly is used for connecting the electrode tip on the stay cord in the handle body sheath pipe. The bolt component comprises a bolt rod and a spring; the in-process in the pin rod inserts in the electrode head terminal surface fixed slot, spacing post slides in the spacing inslot, just compression spring when the pin rod inserts the fixed slot bottom rotates the pin rod makes spacing post slide in the arc wall and carries out the locking. This electrode tip connection structure realizes the split of electrode tip through the bolt subassembly that sets up, and the medical personnel of being convenient for carry out the change of electrode tip.

Description

Sheath pipe bending adjusting handle

Technical Field

The embodiment of the utility model relates to the technical field of medical appliances, in particular to a sheath bending adjusting handle.

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 radio frequency ablation sheath tube bending adjusting handle, the distal end of the radio frequency ablation sheath tube bending adjusting handle pulls the electrode tip to adjust the bending through the pull rope, 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.

When the conventional radiofrequency ablation sheath bending handle is used, the electrode tip and a pull rope of the bending handle are not conveniently detached, so that the electrode tip is inconvenient to replace.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a sheath bending handle, wherein an electrode tip is connected to a pull rope of the sheath bending handle through an arranged bolt assembly, so that the electrode tip and the pull rope are conveniently detached, and the problem that the electrode tip is inconvenient to replace in the prior art is solved.

The embodiment of the utility model provides a sheath bending adjusting handle, which comprises a handle body and an electrode tip connected to the tail end of a sheath of the handle body, wherein 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 far 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 connecting the electrode tip on the stay cord in the handle body sheath pipe. Connect the electrode tip on the stay cord of sheath pipe accent curved handle through the bolt subassembly, the split between electrode tip and the stay cord of being convenient for solves among the prior art problem that the electrode tip is not convenient for change.

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 bolt component comprises a bolt rod and a spring; the pull rope of the sheath bending adjusting handle is connected to the near 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 a feasible scheme, a heat exchange medium for communicating with a sheath pipe input is connected in the medium flow hole; a temperature detection device is arranged in the sensor mounting groove; and a conductive device is arranged in the wire connecting groove.

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 embodiment, the proximal end of the electrode tip is cylindrical and the distal end is frustoconical. Facilitating penetration of the electrode tip within the subcutaneous tissue of the patient.

Based on the scheme, 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, at the moment, under the elastic action of the spring, the pin rod is popped out of the fixed groove, so that the separation between the pin rod and the electrode tip is realized, and medical workers can replace the electrode tip in the daily use process.

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 schematic view showing the mounting structure of the electrode tip in the present invention

FIG. 3 is a sectional view showing the internal structure of an electrode head in the present invention;

FIG. 4 is a schematic structural view of an electrode head in the present invention;

FIG. 5 is a schematic structural view of the equalizing sleeve of the present invention;

FIG. 6 is a schematic view of the latch assembly of the present invention.

Reference numbers in the figures:

1. an electrode tip; 11. a media flow aperture; 12. fixing grooves; 121. a limiting groove; 122. an arc-shaped slot; 13. a sensor mounting groove; 14. a wire connecting groove; 15. a heat exchange medium flow passage; 2. equalizing the casing; 21. infiltrating the pores; 3. a plug pin assembly; 31. a pin rod; 311. a limiting column; 312. a knob; 32. a spring; 4, a handle body.

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.

In the radio frequency ablation treatment, the used apparatus is a radio frequency ablation sheath tube bending adjusting handle, the distal end of the radio frequency ablation 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 to treat by using the bending adjusting mode;

in the prior art, the electrode tip and the pull rope of the bending handle are fixed by bolting or bonding, so that the electrode tip is inconvenient to disassemble and replace.

Fig. 1 is a schematic overall structure diagram of the present invention, fig. 2 is a schematic mounting structure diagram of an electrode tip of the present invention, fig. 3 is a cross-sectional view of an internal structure of the electrode tip of the present invention, fig. 4 is a schematic structural diagram of the electrode tip of the present invention, as shown in fig. 1 to 4, the sheath bending adjusting handle of the present embodiment includes a handle body 4, and an electrode tip 1 connected to a distal end of a sheath of the handle body 4, a proximal end surface of the electrode tip 1 is provided with a medium flow hole 11, a fixing groove 12, a sensor mounting groove 13, and a wire receiving groove 14, a distal end of the electrode tip 1 is provided with a heat exchange medium flow channel 15, which is vertically arranged, and the heat exchange medium flow channel 15 is communicated with the medium flow hole 11, wherein the medium flow hole 11 is axially arranged along the proximal end surface of the electrode tip 1; the fixing groove 12, the sensor mounting groove 13 and the wire receiving groove 14 are arranged in the radial direction of the proximal end face of the electrode head 1; a sheath pipe for inputting a heat exchange medium is communicated in the medium flow hole 11; a temperature detection device is arranged in the sensor mounting groove 13; the wire connecting groove 14 is provided with a conductive device.

Fig. 5 is a schematic structural diagram of a balance sleeve, and as shown in fig. 4, a balance sleeve 2 for distributing a heat exchange medium is sleeved at the proximal end of an electrode head 1, and the balance sleeve 2 is provided with a plurality of infiltration holes 21, so that the heat exchange medium input by a sheath tube flows out from a heat exchange medium flow channel 15 after entering a medium flow hole 11, and overflows through the plurality of infiltration holes 21 arranged on the balance sleeve 2 to reach a focus of a patient, and a heat exchange medium protective film is formed at the focus of the patient.

Fig. 6 is a schematic structural view of a latch assembly, as shown in fig. 5, the latch assembly 3 is detachably connected in the fixing groove 12, and the latch assembly 3 is used for connecting the electrode head 1 to a pull rope in a sheath tube of the handle body 4, and specifically, the latch assembly 3 comprises a pin rod 31 and a spring 32; wherein, the pull rope of the sheath bending handle is connected with the near end of the pin rod 31; the far end of the pin rod 31 is provided with at least one group of limiting columns 311; in order to match the use of the bolt assembly 3, at least one set of limiting grooves 121 are formed in the side wall of the fixing groove 12, and an arc-shaped groove 122 is communicated with one end of each limiting groove 121 extending into the fixing groove 12; during the use, the in-process in the fixed slot 12 is inserted to pin 31, spacing post 311 slides in spacing groove 121, and compression spring 32 when pin 31 inserts fixed slot 12 bottom, clockwise rotation pin 31 makes spacing post 311 slide in arc wall 122 carry out the locking, equally, split pin 31 and electrode tip 1 time, counter-clockwise rotation pin 31, make spacing post 311 slide in arc wall 122 spacing groove 121 and arc wall 122 intercommunication position, at this moment under the elastic action of spring 32, pop out fixed slot 12 with pin 31, realize the separation between pin 31 and the electrode tip 1 with this, and is easy and simple to handle.

In one embodiment, a knob 312 is disposed at a proximal end of pin 31 to facilitate rotation of pin 31 by knob 312, and knob 312 may be flat disposed at a side of the proximal end of pin 31 or truncated cone disposed at an end surface of the proximal end of pin 31.

In one embodiment, the temperature detection device is a temperature sensor, the temperature sensor is electrically connected with a microcontroller in the sheath bending handle, and is used for reading the temperature of the focus of the patient contacted by the electrode head 1 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; in addition, the conducting device in the wire connecting groove 14 is a copper column, the copper column has good conductivity, radio frequency energy can be converted into heat energy to be transmitted to the electrode head 1 to carry out radio frequency treatment on the focus of a patient conveniently, and when the device is used specifically, other conducting materials can be adopted as the conducting device besides the copper column.

In one embodiment, rubber pads with an insulating effect are arranged in the medium flow hole 11, the fixed groove 12 and the sensor mounting groove 13, and the electrode tip 1 is electrified through a conducting device in the working process, so that the medium flow hole 11, the fixed groove 12 and the sensor mounting groove 13 are insulated by the rubber pads in order to avoid electric leakage of the electrode tip 1 and damage of other devices after electric shock, and during specific use, the rubber pads can be replaced by cushion blocks made of insulating materials such as PVC and the like.

In one embodiment, the pore diameter of the infiltration hole 21 is set to be small outside and large inside, and the infiltration hole 21 with small outside and large inside can reduce the flow of the heat exchange medium flowing out of the outlet of the infiltration hole 21, thereby increasing the flow rate of the heat exchange medium, enabling the heat exchange medium to overflow a longer stroke when flowing out, and being attached to the focus of a patient better.

In one embodiment, the proximal end of the electrode tip 1 is cylindrical, and the distal end is truncated cone-shaped, and when in specific use, the distal end of the electrode tip 1 can be in the shapes of cylinder, spherical crown, truncated cone, truncated pyramid, cone, pyramid and the like, so that the shape of the distal end of the electrode can be changed more, and the subcutaneous tissue can be punctured conveniently.

Through the above, it can be easily found that when the electrode tip is replaced, the end of the pin rod 31 is aligned with the fixing groove 12, the limit column 311 at the end of the pin rod 31 is aligned with the limit groove 121, and the pin rod 31 is pushed into the fixing groove 12, so that the pin rod 31 is inserted into the one end compression spring 32 in the fixing groove 12, and the pin rod 31 is rotated clockwise to slide the limit column 311 into the arc-shaped groove 122 for locking, similarly, when the pin rod 31 and the electrode tip 1 are disassembled, the pin rod 31 is rotated counterclockwise to slide the limit column 311 in the arc-shaped groove 122 into the communication part between the limit groove 121 and the arc-shaped groove 122, at this time, under the elastic action of the spring 32, the pin rod 31 is ejected out of the fixing groove 12, so that the separation between the pin rod 31 and the electrode tip 1 is realized, and the replacement of the electrode tip 1 is facilitated for medical staff in the daily use process.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first feature and the second feature may be indirectly contacting each other through intervening media.

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 handle that bends is transferred to sheath pipe, includes the handle body, and connects handle body sheath pipe terminal electrode tip, its characterized in that: 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 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 connecting the electrode tip on the stay cord in the handle body sheath pipe.

2. The sheath bending adjustment handle according to claim 1, 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 bolt component comprises a bolt rod and a spring;

the pull rope of the sheath bending adjusting handle is connected to the near 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.

3. The sheath bending adjustment handle according to claim 2, wherein: the near end of the pin rod is provided with a knob.

4. The sheath bending adjustment handle according to claim 1, 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.

5. The sheath bending adjustment handle according to claim 4, wherein:

the medium flow hole is connected with a heat exchange medium for communicating the input of the sheath pipe;

a temperature detection device is arranged in the sensor mounting groove;

and a conductive device is arranged in the wire connecting groove.

6. The sheath bending adjustment handle according to claim 5, wherein: the temperature detection device is a temperature sensor;

the conductive device is a copper column.

7. The sheath bending adjustment handle according to claim 5, wherein: and rubber pads with insulating effects are arranged in the medium flow holes, the fixed grooves and the sensor mounting grooves.

8. The sheath bending adjustment handle according to claim 1, wherein: the equalizing sleeve is provided with a plurality of infiltration holes.

9. The sheath bending adjustment handle according to claim 8, wherein: the aperture of the infiltration hole is arranged to be small outside and large inside.

10. The sheath bending adjustment handle according to any one of claims 1 to 9, wherein: the near end of the electrode tip is cylindrical, and the far end of the electrode tip is in a round table shape.

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