CN214907980U - Cutter arbor subassembly and plasma scalpel - Google Patents
Cutter arbor subassembly and plasma scalpel Download PDFInfo
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- CN214907980U CN214907980U CN202120147635.XU CN202120147635U CN214907980U CN 214907980 U CN214907980 U CN 214907980U CN 202120147635 U CN202120147635 U CN 202120147635U CN 214907980 U CN214907980 U CN 214907980U
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Abstract
The utility model relates to a cutter arbor subassembly and plasma scalpel belongs to medical instrument technical field for the operation. The plasma scalpel mainly comprises a handle and a scalpel bar assembly, wherein the scalpel bar assembly comprises a main scalpel bar, a scalpel head and a traction piece, the scalpel head is hinged to the main scalpel bar through a pin shaft, one end of the traction piece is connected with the scalpel head, and the traction piece is located on one side of the pin shaft and can drive the scalpel head to rotate relative to the main scalpel bar. The cutter head of cutter arbor subassembly is rotatable for main cutter arbor, can adjust the angle of buckling of cutter head and main cutter arbor as required, makes things convenient for the doctor to carry out accurate target treatment.
Description
Technical Field
The utility model belongs to the technical field of medical instrument is used in the operation, concretely relates to cutter arbor subassembly and plasma scalpel.
Background
The radio frequency plasma scalpel can excite sodium chloride molecules in blood, mucosa and soft tissues to generate a plasma state in human tissues by using ultralow-frequency electric energy, break molecular bonds within the temperature range of reversible denaturation of protein at 40-70 ℃, directly crack biological macromolecules such as the protein and the like into gases such as oxygen, carbon dioxide or nitrogen and the like, and complete multiple functions of cutting, perforating, ablating, shrinking, stopping bleeding and the like of the tissues at the cost of minimally invasive, so the radio frequency plasma scalpel is widely applied clinically.
The existing plasma scalpel is fixed in tool bit and is difficult to accurately position and treat a target spot.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an aim at provides a cutter arbor subassembly and plasma scalpel, the tool bit of cutter arbor subassembly is rotatable for main cutter arbor, can adjust the angle of buckling of tool bit and main cutter arbor as required, makes things convenient for the doctor to carry out accurate target treatment.
The embodiment of the utility model is realized like this:
the embodiment of the utility model provides a cutter arbor subassembly for the plasma scalpel, the cutter arbor subassembly includes main cutter arbor, tool bit and tractive spare, the tool bit with the main cutter arbor is articulated through the round pin axle, the one end of tractive spare with the tool bit is connected, the tractive spare is located one side of round pin axle and can drive the tool bit for main cutter arbor rotates.
As an alternative to the above embodiment, the pulling member is a pulling wire, and the connection portion between the cutter head and the main cutter bar can be elastically deformed by the pulling member.
As an alternative of the above embodiment, the knife bar assembly further includes an auxiliary knife bar, the auxiliary knife bar is tubular and movably sleeved outside the main knife bar, and the auxiliary knife bar and the pulling member move synchronously.
As an alternative to the above embodiment, the tool bit includes a first electrode, a second electrode, an insulator, and a first insulating layer, an insertion hole is formed at an end of the second electrode, the insulator is embedded in the insertion hole, the first electrode is inserted into the insulator, the first insulating layer is disposed on an outer surface of the second electrode, the auxiliary tool bar includes a third electrode and a second insulating layer, the second insulating layer is disposed on an outer surface of the third electrode, and the second electrode is selectively engaged with the first electrode or the third electrode.
As an alternative to the above embodiment, the second electrode is in the form of a flat tube, the insulator is provided with a flat hole, and the first electrode is in the form of a sheet.
As an alternative of the above embodiment, the first electrode includes at least two electrode segments with different widths, the width of the electrode segment far away from the pin is greater than the width of the electrode segment close to the pin, and a sealant is disposed in the flat hole.
As an alternative to the above-described embodiment, the maximum bending angle of the cutter head relative to the main cutter bar is 25-35 °.
As an alternative to the above-described embodiment, the maximum bending angle of the cutting head relative to the main cutter bar is 30 °.
The embodiment of the utility model provides a plasma scalpel is still provided, plasma scalpel includes handle and foretell cutter arbor subassembly, main cutter arbor with the one end of tractive spare connect respectively in the handle, the handle can stimulate the motion of tractive spare, so that the tool bit for main cutter arbor rotates.
As an alternative of the above embodiment, the handle includes a fixed portion, a movable portion and a handle capable of elastically deforming, the movable portion is slidably connected to the fixed portion, one end of the main cutter bar is connected to the fixed portion, one end of the pulling member is connected to the movable portion, and the handle is hinged to the fixed portion and the movable portion respectively, so that the handle can drive the fixed portion and the movable portion to move relatively when deformed.
As an alternative to the above embodiment, the handle is U-shaped or V-shaped.
The utility model has the advantages that:
the utility model provides a plasma scalpel mainly comprises handle and cutter arbor subassembly, and the tool bit of cutter arbor subassembly is rotatable for main cutter arbor, can adjust the angle of buckling of tool bit and main cutter arbor as required, makes things convenient for the doctor to carry out accurate target treatment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only 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. The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 shows a schematic structural diagram of a tool bar assembly according to a first embodiment of the present invention;
FIG. 2 is a schematic view showing the internal construction of the knife bar assembly in one direction;
FIG. 3 is a schematic view showing the internal construction of the cutter bar assembly in another direction;
fig. 4 shows a schematic structural diagram (two states) of a plasma scalpel provided by a second embodiment of the present invention;
FIG. 5 shows a schematic structural view of a plasma scalpel;
FIG. 6 is a schematic view of the handle and knife bar assembly in mating relationship;
fig. 7 shows a schematic structural view of the plug.
Icon:
10-a plasma scalpel;
11-a handle; 12-a tool bar assembly;
110-a stationary part; 111-a mobile part; 112-a handle; 113-a recessed region; 116-a plug;
120-a main cutter bar; 121-a fourth electrode; 122-a third insulating layer; 123-pin shaft;
130-auxiliary cutter bar; 131-a third electrode; 132-a second insulating layer;
140-a cutter head; 141-an insulator; 142-a first electrode; 143-a second electrode; 144-a wire; 145-a first insulating layer; 146-a connecting portion;
150-a pull.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
First embodiment
Referring to fig. 1, an embodiment of the present invention provides a knife bar assembly 12, wherein the knife bar assembly 12 is used as a part of a plasma scalpel 10 for cutting, ablating, coagulating, stopping bleeding, etc. human tissue.
The knife bar assembly 12 includes a main knife bar 120, an auxiliary knife bar 130, a knife head 140 and a pulling member 150 (see fig. 2).
The shape of the main blade bar 120 is not limited, for example, a circular tube shape, a square tube shape, etc., in this embodiment, the main blade bar 120 may be a square tube shape, and the inside of the main blade bar 120 is hollow.
Referring to fig. 2 and 3, a pin 123 and a wire 144 are disposed at an end of the main cutter bar 120, the main cutter bar 120 may be composed of a fourth electrode 121 and a third insulating layer 122, and an outer surface of the fourth electrode 121 is completely covered by the third insulating layer 122.
The auxiliary tool bar 130 is tubular, the shape of the auxiliary tool bar 130 is matched with the shape of the main tool bar 120, and the auxiliary tool bar 130 is movably sleeved outside the main tool bar 120, i.e. the auxiliary tool bar 130 and the main tool bar 120 can relatively slide along the central line of the main tool bar 120.
The auxiliary tool bar 130 includes a third electrode 131 and a second insulating layer 132, the second insulating layer 132 is disposed on an outer surface of the third electrode 131, and a portion of an end of the third electrode 131 is exposed.
The specific structure of the cutting head 140 can adopt, but is not limited to, the following schemes:
the tool tip 140 includes a first electrode 142, a second electrode 143, an insulator 141, and a first insulating layer 145.
The second electrode 143 is flat tube-shaped, and an insertion hole is formed at an end of the second electrode 143.
The first insulating layer 145 is disposed on an outer surface of the second electrode 143, and a portion of an end portion of the second electrode 143 is exposed.
It should be noted that the second electrode 143 and the fourth electrode 121 are matched to form a whole, the first insulating layer 145 and the third insulating layer 122 may be integrally formed, or may be independent from each other, and the connection portion 146 between the cutting head 140 and the main cutting blade 120 is closed. In this embodiment, the connection portion 146 includes a hinge portion and a closed portion, the hinge portion is a portion connected to the pin 123, the closed portion surrounds the hinge portion and leaves a gap for providing deflection or bending, and the closed portion may be a separate structure or a portion of the first insulating layer 145.
The insulator 141 is embedded in the insertion hole, the insulator 141 is provided with a flat hole, and the first electrode 142 is inserted in the flat hole of the insulator 141.
The first electrode 142 is connected to a lead 144, and the first electrode 142 may be in the form of a wire, a rod, or a sheet. The area of the sheet-shaped first electrode 142 is larger, and the ablation and hemostasis effects are better.
The first electrode 142 includes at least two electrode segments with different widths, and the width of the electrode segment far from the pin 123 is greater than the width of the electrode segment near the pin 123.
The flat hole is provided with a sealant, and the sealant seals a gap between the insulator 141 and the first electrode 142 to prevent liquid from entering the tool tip 140 and the main tool shaft 120.
The second electrode 143 selectively cooperates with the first electrode 142 or the third electrode 131, i.e., the second electrode 143 operates simultaneously with the first electrode 142 or the second electrode 143 and the third electrode 131 operate simultaneously.
The first electrode 142 is connected to the positive electrode, the second electrode 143 is connected to the negative electrode, and the third electrode 131 is connected to the positive electrode. When cutting is performed, the second electrode 143 and the third electrode 131 operate, and when coagulation is performed, the first electrode 142 and the second electrode 143 operate.
One end of the pulling member 150 is connected to the cutter head 140, and the pulling member 150 is located at one side of the pin shaft 123, and the cutter head 140 can be driven to rotate relative to the main cutter bar 120 by pulling the pulling member 150.
The drawing piece 150 can be rod-shaped, the rod-shaped drawing piece 150 is hinged to the main cutter bar 120, the rod-shaped drawing piece 150 has certain rigidity, the rod-shaped drawing piece 150 moves to drive the cutter head 140 to deflect or straighten relative to the main cutter bar 120, in addition, a notch can be arranged at the end part of the main cutter bar 120, the notch does not block the movement of the drawing piece 150, the interference on the rod-shaped drawing piece 150 can be reduced, and the deflection angle of the cutter head 140 relative to the main cutter bar 120 is larger.
In this embodiment, the inner surface of the second electrode 143 is provided with a hinge, and the pulling member 150 is a pulling wire, and one end of the pulling wire is fixed to the hinge.
The connection portion 146 of the cutter head 140 and the main cutter bar 120 can be elastically deformed by the pulling member 150, that is, the closed portion of the connection portion 146 can be elastically deformed, so that the cutter head 140 can be reset. Of course, in other embodiments, the connecting portion 146 may not include a sealing portion or the sealing portion does not elastically deform, and a structure such as a torsion spring is added to enable the tool bit 140 to be reset, so that the tool bit 140 and the main tool shaft 120 can be bent and restored to the original position, and it can be considered that the connecting portion 146 can elastically deform under the action of the pulling member 150.
The knife bar assembly 12 has two states: in the first state: the pull wire is not stressed, the center line of the cutter head 140 is consistent with the center line of the main cutter bar 120, and the cutter head 140 is straightened along the center line of the main cutter bar 120; in the second state, the pull wire is stressed, and the cutter head 140 bends relative to the main cutter bar 120 under the action of the pull wire. When the force on the pull wire is removed, the cutter head 140 automatically resets.
The subsidiary knife bar 130 and the drag 150 move in synchronization.
Second embodiment
Referring to fig. 4, a second embodiment of the present invention provides a plasma scalpel 10, wherein the plasma scalpel 10 is required to be used with a rf plasma host for cutting, ablating, coagulating, stopping bleeding, etc. of human tissue, and the contraindications are the same as those of rf plasma surgical equipment.
The plasma scalpel 10 has the following specific structure: the plasma scalpel 10 comprises a handle 11 and a blade bar assembly 12 in the first embodiment.
One end of the main knife bar 120, the auxiliary knife bar 130 and the pulling member 150 are respectively connected to the handle 11, and the handle 11 can pull the pulling member 150 to move, so that the knife head 140 rotates relative to the main knife bar 120.
The handle 11 can adopt, but is not limited to, the following structure, as shown in fig. 5 and 6, the handle 11 includes a fixed portion 110, a movable portion 111 and a handle 112.
The movable portion 111 is slidably connected to the fixed portion 110, and it should be noted that the movable portion 111 and the fixed portion 110 in this embodiment are relative.
Specifically, the fixed part 110 is inserted into the movable part 111, and the movable part 111 is movable along the center line of the fixed part 110.
One end of the main blade bar 120 is connected to the fixed portion 110, one end of the pulling member 150 is connected to the movable portion 111, and one end of the auxiliary blade bar 130 is connected to the movable portion 111.
When the movable portion 111 and the fixed portion 110 move relatively, the main knife bar 120 and the auxiliary knife bar 130 can be driven to move relatively.
The handle 112 is substantially U-shaped or V-shaped, and the outer surface of the handle 112 is curved and provided with a plurality of recessed areas 113 matching with fingers.
The handle 112 is elastically deformable, but the handle 112 may be partially or entirely deformable.
The handle 112 is hinged to the fixed portion 110 and the movable portion 111 respectively, so that the handle 112 can move the fixed portion 110 and the movable portion 111 relatively when deformed.
In addition, the plasma scalpel 10 can further include a cable, a plug 116, a suction tube, and other structures, which are referred to in the prior art and will not be described herein.
The plasma scalpel 10 in this embodiment is used as follows:
the medical staff grasps the handle 11 portion and inserts the knife bar assembly 12 into the guiding needle and to the designated human tissue;
the handle 112 is held, the handle 112 is deformed, the movable portion 111 moves relative to the fixed portion 110, the auxiliary tool bar 130 and the pulling member 150 retreat, the position of the main tool bar 120 remains unchanged, and the tool bit 140 bends under the action of the pulling member 150 (in this embodiment, the advancing and retreating are relative, for example, in this step, "the auxiliary tool bar 130 and the pulling member 150 retreat, and the position of the main tool bar 120 remains unchanged" may also be "the positions of the auxiliary tool bar 130 and the pulling member 150 remain unchanged, and the main tool bar 120 advances");
the second electrode 143 and the third electrode 131 are energized (see fig. 7), so as to cut human tissue, and the like;
when the conversion function is needed, the first electrode 142 and the second electrode 143 are switched to be electrified, and the human tissue is subjected to coagulation hemostasis and the like;
the handle 112 is released, the handle 112 returns to the original state, the movable part 111 moves relative to the fixed part 110, the auxiliary cutter bar 130 and the traction piece 150 move forward, the position of the main cutter bar 120 is kept still, and the cutter head 140 returns to the original position;
the plasma scalpel 10 is removed from the introducer needle.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a cutter arbor subassembly for plasma scalpel (10), characterized in that, cutter arbor subassembly (12) include main cutter arbor (120), tool bit (140) and tractive spare (150), tool bit (140) with main cutter arbor (120) are articulated through round pin axle (123), the one end of tractive spare (150) with tool bit (140) are connected, tractive spare (150) are located one side of round pin axle (123) and can drive tool bit (140) for main cutter arbor (120) rotate.
2. The knife bar assembly of claim 1, wherein the pull bar (150) is a pull wire, and the connection of the knife head (140) and the main knife bar (120) is elastically deformable under the action of the pull bar (150).
3. The blade bar assembly as claimed in claim 1, wherein the blade bar assembly (12) further comprises an auxiliary blade bar (130), the auxiliary blade bar (130) is tubular and movably sleeved outside the main blade bar (120), and the auxiliary blade bar (130) and the pulling member (150) move synchronously.
4. The tool holder assembly according to claim 3, wherein the tool bit (140) comprises a first electrode (142), a second electrode (143), an insulator (141), and a first insulating layer (145), wherein an end portion of the second electrode (143) is provided with a plug hole, the insulator (141) is embedded in the plug hole, the first electrode (142) is inserted in the insulator (141), the first insulating layer (145) is disposed on an outer surface of the second electrode (143), the auxiliary tool holder (130) comprises a third electrode (131) and a second insulating layer (132), the second insulating layer (132) is disposed on an outer surface of the third electrode (131), and the second electrode (143) is selectively matched with the first electrode (142) or the third electrode (131).
5. The knife bar assembly according to claim 4, characterized in that the second electrode (143) is in the form of a flat tube, the insulator (141) is provided with a flat hole, and the first electrode (142) is in the form of a plate.
6. The knife bar assembly of claim 5, wherein the first electrode (142) comprises at least two electrode segments of unequal widths, the electrode segments distal from the pin (123) having a width greater than the electrode segments proximal to the pin (123), and a sealant disposed within the flat bore.
7. The toolholder assembly as set forth in claim 1, characterized in that a maximum bend angle of the tool tip (140) relative to the main toolholder (120) is between 25 ° and 35 °.
8. A plasma scalpel, characterised in that the plasma scalpel (10) comprises a handle (11) and a blade assembly (12) as claimed in any one of claims 1 to 7, the main blade (120) and the pull member (150) being connected at one end to the handle (11), respectively, the handle (11) being capable of pulling the pull member (150) to move so as to rotate the cutting head (140) relative to the main blade (120).
9. The plasma scalpel according to claim 8, wherein the handle (11) comprises a fixed portion (110), a movable portion (111) and an elastically deformable handle (112), the movable portion (111) is slidably connected to the fixed portion (110), one end of the main blade bar (120) is connected to the fixed portion (110), one end of the pulling member (150) is connected to the movable portion (111), and the handle (112) is hinged to the fixed portion (110) and the movable portion (111) respectively, so that the handle (112) can drive the fixed portion (110) and the movable portion (111) to move relatively when deformed.
10. The plasma scalpel of claim 9, wherein the handle (112) is U-shaped or V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120147635.XU CN214907980U (en) | 2021-01-20 | 2021-01-20 | Cutter arbor subassembly and plasma scalpel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120147635.XU CN214907980U (en) | 2021-01-20 | 2021-01-20 | Cutter arbor subassembly and plasma scalpel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214907980U true CN214907980U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120147635.XU Active CN214907980U (en) | 2021-01-20 | 2021-01-20 | Cutter arbor subassembly and plasma scalpel |
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| Country | Link |
|---|---|
| CN (1) | CN214907980U (en) |
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2021
- 2021-01-20 CN CN202120147635.XU patent/CN214907980U/en active Active
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