CN210250055U - Rotatable snare with locking structure - Google Patents
Rotatable snare with locking structure Download PDFInfo
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- CN210250055U CN210250055U CN201920517174.3U CN201920517174U CN210250055U CN 210250055 U CN210250055 U CN 210250055U CN 201920517174 U CN201920517174 U CN 201920517174U CN 210250055 U CN210250055 U CN 210250055U
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Abstract
The utility model discloses a rotatable snare of area locking structure, include: the core bar is provided with a bracelet in a sliding manner, and the bracelet is provided with an electrode plug; the front end of the stay cable is fixedly connected with the ring sleeve through a butt joint pipe, the rear end of the stay cable is connected with the electrode plug, and an insulating outer pipe is sleeved outside the stay cable; the rotary button is rotatably arranged at the front end of the core rod and is fixedly connected with the rear end of the insulating outer tube. Further comprising: the locking spring tube is arranged in the insulating outer tube and sleeved at the rear part of the inhaul cable, and the front end of the locking spring tube is limited by the butt joint tube; the locking spring boosting pipe is sleeved outside the locking spring pipe and fixedly connected with the locking spring pipe; the locking button is arranged on the core rod and can slide along the core rod, and the locking button is fixedly connected with the locking spring boosting tube. The utility model discloses a rotatable snare can guarantee that the excision face is level and smooth to improve the excision rate.
Description
Technical Field
The utility model belongs to a rotatable snare of area locking structure belongs to medical machine technical field.
Background
The snare is mainly used for cutting various polyps and redundant tissues under an endoscope in cooperation with high-frequency electricity, and the direction of the snare needs to be adjusted according to the position of a focus in the using process of the snare so that the snare can be accurately sleeved on the polyps or the redundant tissues. In the prior art, in order to adjust the snare direction conveniently, a plurality of snares with rotating functions are designed, for example, chinese patent document (application number 200920193191.2) discloses a rotary snare, which comprises a handle and a guide wire (also called a pull cable), wherein the distal end of the guide wire is connected with the snare, the proximal end of the guide wire is connected with an electrode arranged on the handle through a metal rod, one end of the metal rod is fixedly connected with the guide wire, the other end of the metal rod is movably connected with the electrode, the handle is rotatably provided with a roller, and the snare direction can be adjusted through the rotating roller. The defect that exists in this scheme is that there is no locking device, namely the snare rotates and may be released to deflect in use, which affects smooth polyp resection and thus resection efficiency.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the to-be-solved technical problem of the utility model is that: a rotatable snare with a locking structure capable of smoothly resecting a polyp is provided.
The utility model discloses the technical scheme who adopts does: a rotatable snare with a locking structure, comprising:
the core bar is provided with a bracelet in a sliding manner, and the bracelet is provided with an electrode plug;
the front end of the pull cable is fixedly connected with the ring sleeve through a butt joint pipe, the rear end of the pull cable is connected with the electrode plug, and an insulating outer pipe is sleeved outside the pull cable;
the rotating button is rotatably arranged at the front end of the core rod and is fixedly connected with the rear end of the insulating outer tube;
further comprising:
the locking spring tube is arranged in the insulating outer tube and sleeved at the rear part of the inhaul cable, and the front end of the locking spring tube is limited by the butt joint tube;
the locking spring boosting pipe is sleeved outside the locking spring pipe and fixedly connected with the locking spring pipe;
the locking button is arranged on the core rod and can slide along the core rod, and the locking button is fixedly connected with the locking spring boosting tube.
Furthermore, the outer surface of the locking button is provided with a tooth buckle, and the core rod is provided with inclined teeth matched with the tooth buckle. When the locking button is pushed forwards, the tooth buckle moves forwards along the helical teeth, and after the locking button is released and stopped to be pushed, the helical teeth have a limiting effect on the tooth buckle, so that the locking button can be prevented from sliding backwards.
Preferably, the rear part of the butt joint pipe is engaged with the front part of the locking spring pipe through saw teeth so as to enhance the rotation stopping effect.
Further, still establish the protecting pipe at insulating outer tube rear end including coaxial cover, the rear end and the knob fixed connection of protecting pipe, the protecting pipe has the guard action to the link of insulating outer tube with the knob, prevents that the outer tube of insulating slips from the knob under the exogenic action.
The utility model discloses the technological effect who gains does: the rear end of the butt joint pipe is provided with a locking spring pipe, and the operating handle is provided with a locking button. When the snare is used, the snare is pushed out, then the rotating button is pinched, the core rod is rotated, the snare is rotated to a required angle, the locking button is pushed forwards, the locking spring tube tightly props against the butt joint tube, and the head is locked so that the snare does not rotate any more. The ring sleeve can not rotate when the ring sleeve is pulled back after the ring sleeve is attached to the polyp, and the polyp is stably cut off by pulling the handle. The utility model provides a rotatable snare of area locking structure can guarantee that the excision face is level and smooth to improve the excision rate.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of a rotatable snare with a locking structure in an embodiment of the present invention.
FIG. 2 is a schematic view showing the connection of the snare, the butt joint pipe, the stay cable and the locking spring pipe in FIG. 1.
Fig. 3 is a schematic connection diagram of the locking spring tube, the boosting tube of the locking spring tube and the locking button in fig. 1.
Fig. 4 is a schematic view of the connection of the locking button to the stem.
FIG. 5 is a schematic view of the mating tube and locking spring tube serrated engagement.
In the figure: 1. the cable comprises a ring sleeve, 2 parts of butt joint pipes, 3 parts of locking spring pipes, 4 parts of cables, 5 parts of insulating outer pipes, 6 parts of protective sleeves, 7 parts of rotating buttons, 8 parts of electrode plugs, 9 parts of hand rings, 10 parts of core rods, 10-1 parts of bevel teeth, 11 parts of locking spring pipe boosting pipes, 12 parts of cable boosting pipes, 13 parts of locking buttons and 13-1 parts of tooth buckles.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic way, and thus show only the components that are relevant to the invention, and the directions and references (e.g., upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Referring to fig. 1-3, a rotatable snare with a locking structure comprises: the core bar 10 is provided with a bracelet 9 in a sliding manner, and an electrode plug 8 is arranged on the bracelet 9; the front end of the inhaul cable 4 is fixedly connected with the ring 1 through the butt joint pipe 2, the rear end of the inhaul cable 4 is connected with the electrode plug 8, and an insulating outer pipe 5 is sleeved outside the inhaul cable 4; the rotary knob 7 is rotatably arranged at the front end of the core rod 10, and the rotary knob 7 is fixedly connected with the rear end of the insulating outer tube 5; the coaxial sleeve is established at the protecting pipe 6 of insulating outer tube 5 rear end, the rear end and the knob 7 fixed connection of rotating of protecting pipe 6.
Further comprising: the locking spring tube 3 is arranged in the insulating outer tube 5 and sleeved at the rear part of the inhaul cable 4, and the front end of the locking spring tube 3 is limited by the butt joint tube 2; the locking spring boosting pipe 11 is sleeved outside the locking spring pipe 5, and the locking spring boosting pipe 11 is fixedly connected with the locking spring pipe 3; and the locking button 13 is arranged on the core rod 10, the locking button 13 can slide along the core rod 10, and the locking button 13 is fixedly connected with the locking spring boosting tube 11.
Referring to fig. 4, a tooth buckle 13-1 is arranged on the outer surface of the locking button 13, and the core rod 10 is provided with inclined teeth 10-1 matched with the tooth buckle 13-1.
The rear part of the abutment tube 2 engages with the front part of the locking spring tube 3 by means of serrations, see fig. 5.
The working principle of the rotatable snare with the locking structure is as follows: the snare is conveyed to the polyp through the endoscope, the bracelet on the core rod is pushed, the snare is pushed, the rotating button is pinched, the core rod is rotated, then the snare is rotated to a required angle, then the locking button is pushed, the locking spring is tightly propped against the butt joint pipe, the snare is stopped to rotate, the handle is pulled back after the polyp is finally sleeved and taken, the polyp is cut, the polyp cutting surface is smooth, and the cutting rate is high.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (4)
1. A rotatable snare with a locking structure, comprising:
the core bar (10), a bracelet (9) is arranged on the core bar (10) in a sliding manner, and an electrode plug (8) is arranged on the bracelet (9);
the front end of the pull cable (4) is fixedly connected with the ring sleeve (1) through the butt joint pipe (2), the rear end of the pull cable (4) is connected with the electrode plug (8), and an insulating outer pipe (5) is sleeved outside the pull cable (4);
the rotary button (7) is rotatably arranged at the front end of the core rod (10), and the rotary button (7) is fixedly connected with the rear end of the insulating outer tube (5);
the method is characterized in that: further comprising:
the locking spring tube (3) is arranged in the insulating outer tube (5) and sleeved at the rear part of the inhaul cable (4), and the front end of the locking spring tube (3) is limited by the butt joint tube (2);
the locking spring boosting pipe (11) is sleeved outside the locking spring pipe (3), and the locking spring boosting pipe (11) is fixedly connected with the locking spring pipe (3);
the locking device comprises a locking button (13) arranged on a core rod (10), wherein the locking button (13) can slide along the core rod (10), and the locking button (13) is fixedly connected with a locking spring boosting tube (11).
2. A rotatable snare with a locking structure according to claim 1, wherein: the outer surface of the locking button (13) is provided with a tooth buckle (13-1), and the core rod (10) is provided with inclined teeth (10-1) matched with the tooth buckle (13-1).
3. A rotatable snare with a locking structure according to claim 1, wherein: the rear part of the butt joint pipe (2) is meshed with the front part of the locking spring pipe (3) through sawteeth.
4. A rotatable snare with a locking structure according to claim 1, wherein: the cable is characterized by further comprising a protective sleeve (6) coaxially sleeved at the rear end of the insulating outer tube (5), wherein the rear end of the protective sleeve (6) is fixedly connected with the rotating button (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517174.3U CN210250055U (en) | 2019-04-16 | 2019-04-16 | Rotatable snare with locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517174.3U CN210250055U (en) | 2019-04-16 | 2019-04-16 | Rotatable snare with locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210250055U true CN210250055U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920517174.3U Active CN210250055U (en) | 2019-04-16 | 2019-04-16 | Rotatable snare with locking structure |
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| CN (1) | CN210250055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112168333A (en) * | 2020-09-21 | 2021-01-05 | 扬州发特利医疗器械科技有限公司 | Bipolar electric snare |
-
2019
- 2019-04-16 CN CN201920517174.3U patent/CN210250055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112168333A (en) * | 2020-09-21 | 2021-01-05 | 扬州发特利医疗器械科技有限公司 | Bipolar electric snare |
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