CN215425043U - Plasma scalpel - Google Patents

Abstract

The utility model relates to a plasma scalpel, and belongs to the technical field of medical instruments for operations. This plasma scalpel includes handle and cutter arbor subassembly, and the handle includes the sleeve, is provided with control switch on the handle, and the cutter arbor subassembly includes main cutter arbor, supplementary cutter arbor, first tool bit and second tool bit, and main cutter arbor slidable wears to locate the sleeve. Integrate first tool bit and second tool bit on a plasma scalpel, can realize different functions, make things convenient for the doctor to use, avoid the tool changing, improve the surgical efficiency, simultaneously, the second tool bit is scalable, and first tool bit and second tool bit do not influence each other, make things convenient for the doctor to carry out accurate target treatment.

Description

Plasma scalpel

Technical Field

The utility model belongs to the technical field of medical instruments for operation, and particularly relates to a 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 has single function, and when the plasma scalpel is used, a doctor needs to replace a knife for use.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the embodiments of the present invention is to provide a plasma scalpel, in which two tool bits are integrated on one plasma scalpel, so that different functions can be realized, the use by a doctor is facilitated, tool changing is avoided, and the operation efficiency is improved.

The embodiment of the utility model is realized by the following steps:

the embodiment of the utility model provides a plasma scalpel, which comprises a handle and a scalpel bar assembly.

The handle comprises a sleeve, and a control switch is arranged on the handle.

The cutter arbor subassembly includes main cutter arbor, supplementary cutter arbor, first tool bit and second tool bit, main cutter arbor slidable wears to locate the sleeve, first tool bit set up in the tip of main cutter arbor, the second tool bit set up in the tip of supplementary cutter arbor, supplementary cutter arbor mobilizable set up in the inside of main cutter arbor and with control switch connects, so that the follow of second tool bit selectivity main cutter arbor is inside to be stretched out or to shrink extremely inside the main cutter arbor.

As an alternative to the above-described embodiment, the first tool bit is arranged in the radial direction of the main tool shank.

As an alternative to the above embodiment, the second cutter head is pre-bent, and has a retracted state retracted inside the main cutter bar and straightened by a limit, and an operating state extended from inside the main cutter bar and bent.

As an alternative to the above embodiment, the second cutting head is curved towards a side remote from the first cutting head.

As an alternative to the above embodiment, the second cutting head is provided with a pre-bent portion, which is pre-bent and elastically deformable.

As an alternative to the above embodiment, the second cutter head includes a first electrode and a second electrode, the first electrode and the second electrode are connected with a guide wire, the first electrode and the second electrode are located at an end of the second cutter head, and the first electrode and the second electrode are arranged side by side in a left-right direction and are separated by an insulating layer.

As an alternative to the above embodiment, the second cutting head comprises a first electrode and a second electrode, the first electrode is located at the end of the second cutting head and connected with a guide wire, and the first electrode and the second electrode are arranged in a front-back manner and separated by an insulating layer.

As an alternative to the above embodiment, the end surface of the second cutter head is spherical.

As an alternative to the above embodiment, the first cutting head includes a third electrode and an insulator, the main cutting rod includes a fourth electrode, a partition plate is disposed in the main cutting rod and separates the first cutting head from the second cutting head, the insulator is disposed on the fourth electrode, the third electrode is inserted into the insulator, and the insulator is provided with a liquid suction port communicated with a water pipe.

As an alternative to the above embodiment, the first blade head further includes an auxiliary electrode, the auxiliary electrode is in a sheet shape and attached to the insulator, and the third electrode ties the auxiliary electrode to the insulator.

The utility model has the beneficial effects that:

according to the plasma scalpel provided by the utility model, the first scalpel head and the second scalpel head are integrated on one plasma scalpel, different functions can be realized, the plasma scalpel is convenient for a doctor to use, the tool changing is avoided, the operation efficiency is improved, meanwhile, the second scalpel head is telescopic, the first scalpel head and the second scalpel head are not affected with each other, and the plasma scalpel is convenient for the doctor to perform 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 needed 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 it is obvious for those skilled in the art to obtain other 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 necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model.

Fig. 1 shows a schematic structural diagram (two states) of a plasma scalpel according to an embodiment of the present invention;

FIG. 2 shows a schematic view of the internal structure of a plasma scalpel;

FIG. 3 is a schematic view of a first mating relationship of the main cutter bar and the first cutter head;

FIG. 4 is a schematic view showing the mating relationship of the insulator and the third electrode;

FIG. 5 is a schematic view of a second mating relationship of the main cutter bar and the first cutter head;

FIG. 6 is a schematic view illustrating a third mating relationship of the main arbor and the first tool bit;

fig. 7 shows a schematic view of a second cutting head with a front and rear pole configuration.

Icon:

10-a plasma scalpel;

11-a handle; 12-a tool bar assembly;

115-a suction tube; 116-a sleeve; 117-control switch;

120-a main cutter bar; 121-a fourth electrode; 122 — a second insulating layer; 123-a separator;

130-auxiliary cutter bar;

140-a first cutting head; 141-a third electrode; 142-an insulator; 143-a first insulating layer; 144-a liquid suction port; 145-water pipe; 146-an auxiliary electrode;

150-a second cutting head; 151-pre-bend; 152-a first electrode; 153-a second electrode; 154-a guide wire; 155-an insulating layer; 156-third insulating layer; 157-fourth insulating layer.

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. The components of embodiments of the present invention 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 figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

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.

Referring to fig. 1 and 2, an embodiment of the present invention provides a plasma scalpel 10, wherein the plasma scalpel 10 is required to be used with a radio frequency plasma host for cutting, ablating, coagulating, stopping bleeding, etc. of human tissue, and the contraindications thereof are the same as those of radio frequency 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.

In addition, the plasma scalpel 10 can further include a cable, a plug, a suction tube 115, and other structures, which are referred to in the prior art and will not be described herein.

The handle 11 is constructed as follows: the handle 11 comprises a sleeve 116, the main knife bar 120 is slidably disposed through the sleeve 116, and the handle 11 is provided with a control switch 117.

The specific structure of the cutter bar assembly 12 is such that the cutter bar assembly 12 includes a main cutter bar 120, an auxiliary cutter bar 130, a first cutter head 140 and a second cutter head 150.

Specifically, the shape of the main shaft 120 is not limited, and may be, for example, a circular tube shape, a square tube shape, or the like, and the main shaft 120 has a hollow interior.

In this embodiment, the main cutter bar 120 may be a circular tube structure, and a partition 123 is disposed in the main cutter bar 120.

The first cutter head 140 is disposed at an end of the main cutter bar 120, and in the present embodiment, the first cutter head 140 is disposed along a radial direction of the main cutter bar 120.

It should be noted that the term "radial" in the present invention does not mean that the main shaft 120 is necessarily a circular tube, but means a direction perpendicular to the center line of the main shaft 120.

The first cutting head 140 is disposed along the radial direction of the main cutting bar 120, and it does not mean that the first cutting head 140 is oriented perpendicular to the center line of the main cutting bar 120, but the first cutting head 140 is oriented substantially perpendicular to the center line of the main cutting bar 120, and there may be a certain included angle between the first cutting head 140 and the main cutting bar 120, for example, the included angle between the center line of the first cutting head 140 and the center line of the main cutting bar 120 is 75 ° to 90 °, and of course, the effect is better when the first cutting head 140 is perpendicular to the center line of the main cutting bar 120.

The structure of the first cutting head 140 can adopt, but is not limited to, the following scheme:

referring to fig. 3 to 6, the first cutter head 140 includes a third electrode 141, an insulator 142 and a first insulating layer 143, and the main cutter 120 includes a fourth electrode 121 and a second insulating layer 122.

The fourth electrode 121 is in a shape of a circular tube, the second insulating layer 122 covers the outer surface of the fourth electrode 121, and an end portion of the fourth electrode 121 is exposed.

A mounting hole is provided in an exposed portion of the fourth electrode 121, and an insulator 142 is embedded in the mounting hole.

The insulator 142 is provided with a liquid suction port 144, the liquid suction port 144 is communicated with the water pipe 145, and the liquid suction port 144 is used for sucking waste liquid and waste generated in the cutting, ablation and other processes and discharging the waste liquid and the waste through the water pipe 145, so that the cleanness of the working environment is ensured.

The third electrode 141 is inserted on the insulator 142, the third electrode 141 may be in the form of a wire electrode, and the number of the third electrodes 141 may be adjusted as needed.

A portion of the third electrode 141 is exposed outside the main bar 120, a portion of the third electrode 141 is located inside the main bar 120, the third electrode 141 located inside the main bar 120 is located inside a first insulating layer 143, and the first insulating layer 143 separates the third electrode 141 and the fourth electrode 121.

In addition, in the embodiment, referring to fig. 6, the first tool tip 140 may further include an auxiliary electrode 146.

The auxiliary electrode 146 is a sheet, the auxiliary electrode 146 is attached to the insulator 142, a plurality of through holes may be provided on the auxiliary electrode 146, and the third electrode 141 passes through the through holes and binds the auxiliary electrode 146 to the insulator 142.

The area of the sheet electrode is larger, and the efficiency of cutting, melting, coagulating and hemostasis is higher.

The third electrode 141 and the fourth electrode 121 are respectively connected with a first lead, and the first cutting head 140 is controlled to be turned on or off by the control switch 117.

The structure of the auxiliary tool bar 130 and the second tool head 150 may adopt, but is not limited to, the following schemes:

referring to fig. 7, the auxiliary tool bar 130 is rod-shaped or tubular, and the auxiliary tool bar 130 is located in the main tool bar 120 and connected to the control switch 117. The control switch 117 is used to push the auxiliary tool bar 130 to move in the main tool bar 120, and the control switch 117 is pushed to drive the auxiliary tool bar 130 to slide in the main tool bar 120, so that the second tool bit 150 can extend out of or retract into the main tool bar 120.

The subsidiary bar 130 is movable in a direction of its center line with respect to the main bar 120.

The second cutter head 150 is provided at an end of the subsidiary cutter bar 130, and the first cutter head 140 and the second cutter head 150 are partitioned by the partition 123.

The shape of the second tool tip 150 may remain unchanged.

In this embodiment, the second tool tip 150 is capable of bending.

The second cutting head 150 can be pre-bent in various ways, for example, the second cutting head 150 is provided with a pre-bending portion 151, and the pre-bending portion 151 is pre-bent and can be elastically deformed, that is, the pre-bending portion 151 is made of a material capable of being elastically deformed.

The auxiliary tool bar 130 can move the second tool bit 150, so that the second tool bit 150 has two states, i.e., a retracted state and an operating state.

When the second cutter head 150 is in the retracted state, the second cutter head 150 is retracted inside the main cutter bar 120, and the second cutter head 150 is straightened by the tube wall of the second tube body in a limiting manner and cannot be bent.

When the second cutter head 150 is in a working state, the second cutter head 150 extends out of the second tube, and the second cutter head 150 is bent.

The maximum bend angle of the second cutting head 150 can be adjusted as desired, for example, the maximum bend angle of the second cutting head 150 is 60 °, 75 °, 90 °, etc.

The direction of the curvature of the second tool tip 150 is not limited, and in the present embodiment, the second tool tip 150 is curved toward the side away from the first tool tip 140.

The second cutting head 150 is bent in a direction away from the first cutting head 140 without interfering with each other.

The second tool tip 150 and the auxiliary tool shank 130 can also be considered as one integral part of the whole, the second tool tip 150 comprises a first electrode 152, a second electrode 153 and an insulating layer 155, the insulating layer 155 is divided into a third insulating layer 156 and a fourth insulating layer 157. In this embodiment, the following two schemes are provided:

in the first scheme, the second tool tip 150 adopts a left-right pole structure, that is, the first electrode 152 and the second electrode 153 are both located at the end of the second tool tip 150, and the first electrode 152 and the second electrode 153 are arranged side by side left and right.

The front, back, left, and right in this embodiment are based on the direction of the center line of the second tool bit 150, the end surface position close to the second tool bit 150 is front, the end surface position far from the second tool bit 150 is back, and the two sides of the second tool bit 150 are left and right.

The second cutting head 150 is controlled to be turned on or off by the control switch 117.

The third insulating layer 156 is tubular, the fourth insulating layer 157 is disposed inside the third insulating layer 156, and the first electrode 152 and the second electrode 153 are disposed at the end of the third insulating layer 156 and at two sides of the fourth insulating layer 157.

The third insulating layer 156 and the fourth insulating layer 157 extend all the way to the appropriate positions, a portion of which form the auxiliary bar 130.

The first electrode 152 and the second electrode 153 are connected to a wire 154, the connection mode may be welding, and the two wires 154 are respectively located at two sides of the fourth insulating layer 157.

In a second alternative, referring to fig. 7, the second cutting head 150 adopts a front-rear electrode structure, that is, the first electrode 152 is located at an end of the second cutting head 150 and connected with the guide wire 154, and the first electrode 152 and the second electrode 153 are arranged in front and rear and separated by the insulating layer 155.

The second electrode 153 is tubular, the third insulating layer 156 is disposed at an end of the second electrode 153, the first electrode 152 is disposed at an end of the third insulating layer 156, and the fourth insulating layer 157 covers an outer surface of the wire 154.

In addition, the end surface of the second cutting head 150 may be spherical, and the spherical second cutting head 150 may prevent human tissue from being scratched.

The first cutter head 140 and the second cutter head 150 are controlled to be alternatively operated or not operated at the same time through the control switch 117, the structure of the control switch 117 is not limited, and in the embodiment, the structure of the control switch 117 can adopt the following scheme without limitation:

the control switch 117 includes a hand push button, two sets of first wiring portions and two sets of second wiring portions, the hand push button is fixed to the auxiliary cutter bar 130 or the second cutter head 150, the first wiring portions are disposed on the hand push button, each set of first wiring portions includes two first wiring heads, the first wiring heads are electrically connected to the cable, and the two first wiring heads are respectively equivalent to the positive and negative electrodes of the cable.

Two sets of second wiring portions and two tool bits one-to-one, second wiring portion include two second connector lugs, and the second connector lug is fixed in the inside of handle 11.

The second terminals of one set of the second connection portions are electrically connected to the working electrode and the circuit electrode of the first blade 140, respectively, and the second terminals of the other set of the second connection portions are electrically connected to the working electrode and the circuit electrode of the second blade 150, respectively, for example, the second terminals are electrically connected to the working electrode or the circuit electrode through wires.

Further, two second terminals of a set of terminal portions corresponding to the first blade 140 may be fixed to the spacer 123, the spacer 123 of the first blade 140 may serve as a return pole wire, and the pipette inside the handle 11 may serve as a working pole wire. Of course, in this case, one of the second terminals is insulated from the spacer 123, i.e., the spacer 123 is partially insulated and partially conductive.

The push button is provided with two limit positions, and the two limit positions respectively enable one group of first wiring portions to be electrically conducted with one group of second wiring portions, or enable the other group of first wiring portions to be electrically conducted with the other group of second wiring portions.

When the first wiring portions are electrically connected with the second wiring portions, namely the two first wiring heads are electrically connected with the two corresponding second wiring heads, the corresponding cutter heads work.

By pushing the push button, one of the first tool bit 140 or the second tool bit 150 can be operated, or two sets of the second wiring portions are not conducted with two sets of the first wiring portions, that is, the first tool bit 140 and the second tool bit 150 are not operated, and of course, the first tool bit 140 and the second tool bit 150 cannot be operated simultaneously in principle.

The plasma scalpel 10 in this embodiment is used as follows:

the medical staff grasps the handle 11 part and inserts the main knife bar 120 into the guide needle and reaches the designated human tissue;

cutting, ablating, etc. the body tissue using the first cutting head 140;

when tool changing is required, the control switch 117 is pushed, the positions of the main blade bar 120 and the first blade head 140 are kept still, the auxiliary blade bar 130 advances, the second blade head 150 extends out of the main blade bar 120, and the second blade head 150 is automatically bent (in this embodiment, the advancing and retreating are relative, for example, in this step, "the positions of the main blade bar 120 and the first blade head 140 are kept still, and the advancing of the auxiliary blade bar 130" may also be "the position of the auxiliary blade bar 130 is kept still, and the main blade bar 120 and the first blade head 140 are retreated");

performing coagulation hemostasis and the like on human tissues by using the second cutter head 150 (the first cutter head 140 and the second cutter head 150 only need to have different functions, and the function sequence is selected according to needs);

the control switch 117 is pushed reversely, the positions of the main cutter bar 120 and the first cutter head 140 are kept still, the auxiliary cutter bar 130 retreats, the second cutter head 150 retracts into the main cutter bar 120, and the second cutter head 150 is straightened and cannot be bent under the constraint of the pipe wall of the main cutter bar 120;

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. A plasma scalpel, wherein the plasma scalpel (10) comprises a handle (11) and a blade bar assembly (12);

the handle (11) comprises a sleeve (116), and a control switch (117) is arranged on the handle (11);

cutter arbor subassembly (12) include main cutter arbor (120), supplementary cutter arbor (130), first tool bit (140) and second tool bit (150), main cutter arbor (120) slidable wear to locate sleeve (116), first tool bit (140) set up in the tip of main cutter arbor (120), second tool bit (150) set up in the tip of supplementary cutter arbor (130), supplementary cutter arbor (130) mobilizable set up in the inside of main cutter arbor (120) and with control switch (117) are connected, so that the selective follow of second tool bit (150) main cutter arbor (120) is inside to stretch out or contract to inside main cutter arbor (120).

2. Plasma scalpel according to claim 1, wherein the first cutting head (140) is arranged radially of the main blade bar (120).

3. Plasma scalpel according to claim 1, in which the second cutting head (150) is pre-curved, the second cutting head (150) having a retracted state retracted inside the main blade bar (120) and straightened by a stop, and an operating state protruding from inside the main blade bar (120) and curved.

4. The plasma scalpel of claim 3, wherein the second blade (150) is curved towards a side away from the first blade (140).

5. A plasma scalpel according to claim 3, wherein the second blade (150) is provided with a pre-bend (151), the pre-bend (151) being pre-bent and elastically deformable.

6. The plasma scalpel of claim 1, wherein the second blade (150) comprises a first electrode (152) and a second electrode (153), each of the first electrode (152) and the second electrode (153) is connected with a guide wire (154), each of the first electrode (152) and the second electrode (153) is located at an end of the second blade (150), and the first electrode (152) and the second electrode (153) are arranged side by side in the left-right direction and are separated by an insulating layer (155).

7. The plasma scalpel of claim 1, wherein the second cutting head (150) comprises a first electrode (152) and a second electrode (153), the first electrode (152) is located at the end of the second cutting head (150) and is connected with a guide wire (154), and the first electrode (152) and the second electrode (153) are arranged in a front-back manner and are separated by an insulating layer (155).

8. The plasma scalpel of claim 1, wherein the end face of the second cutting head (150) is spherical.

9. The plasma scalpel according to claim 1, wherein the first cutting head (140) comprises a third electrode (141) and an insulator (142), the main cutting head (120) comprises a fourth electrode (121), a partition plate (123) for separating the first cutting head (140) from the second cutting head (150) is arranged in the main cutting head (120), the insulator (142) is arranged on the fourth electrode (121), the third electrode (141) is inserted in the insulator (142), and a liquid suction port (144) communicated with the water pipe (145) is arranged on the insulator (142).

10. The plasma scalpel of claim 9, wherein the first blade (140) further comprises an auxiliary electrode (146), the auxiliary electrode (146) being tab shaped and attached to the insulator (142), the third electrode (141) binding the auxiliary electrode (146) to the insulator (142).

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