CN115737112A - Surgical electrode for electromagnetic knife - Google Patents

Abstract

The invention relates to a surgical electrode for an electromagnetic knife, which comprises a front handle, a rear handle and an electrode core, wherein the front end of the front handle is provided with an electrode outlet, the front handle and the rear handle are connected in a circumferential rotating manner, the electrode core is arranged in the front handle and the rear handle in a penetrating manner, the rear end of the electrode is fixed in the rear handle and is connected with a cable, the front handle and the rear handle can move axially, and the position of the electrode core is driven by the rear handle, so that the front end of the electrode core extends out of the electrode outlet to accurately reach a surgical area. The invention solves the technical problems that the head of the electrode can not be adjusted or the adjustment affects the operation after the existing bipolar radiofrequency ablation electrode enters a focus area, and the adjustment precision is low.

Description

Surgical electrode for electromagnetic knife

Technical Field

The invention relates to the field of medical instruments, in particular to a surgical electrode for an electromagnetic knife.

Background

The bipolar radiofrequency ablation electrode is widely applied to a spine minimally invasive surgery system consisting of an intervertebral foramen mirror, an imaging and image processing system and a matched spine minimally invasive surgery instrument, can completely remove the protruded or prolapsed nucleus pulposus through tiny wound, and can be used for removing hyperosteogeny, treating spinal stenosis and the like. The intervertebral foramen mirror technology has the advantages of smaller wound, less bleeding, smaller damage to muscles and ligaments around the lumbar, simpler and more convenient anesthesia, quicker postoperative recovery, lighter economic burden and the like, and the bipolar radio frequency ablation electrode acts on soft tissues such as the ligaments and the like, can play the roles of coagulation hemostasis, thermal shrinkage and ablation, and can repair damaged fibrous rings and the like.

The existing bipolar radiofrequency ablation electrode can extend out of the electrode head through operations such as push-pull and the like, but generally has a fixed deflection angle and cannot be adjusted. When the intervertebral foramen mirror enters a focus area, the operation is not easy because the incision is small, and whether the intervertebral foramen mirror can be observed or not and can contact the focus area to be treated is determined because five elements of the body position angle, the visual angle range of the endoscope, the optical fiber light-transmitting angle, the angle of the electrode elbow and the position to be treated in the operation are determined, so that the operation difficulty can be reduced to a great extent and the risk of misoperation in the operation is reduced by adjusting the angle of the electrode. Therefore, when the deflection angle of the electrode after entering the electrode deviates from the position to be treated, an operator can only adjust the deflection angle of the electrode by rotating the wrist or the arm to enable the electrode to approach the focus region, and at the moment, the operator may be in an unconventional operation posture or an unaccustomed force direction, so that the treatment difficulty of the focus is increased correctly and accurately, the operation risk is increased, nerve roots, dura mater and the like are easily damaged during the operation, and the symptoms such as numbness and pain of lower limbs and even abnormal sensation of the lower limbs occur; sometimes, the electrode handle may rotate to an angle which cannot be held correctly, and the operation may not be continued, thereby causing great trouble to doctors.

In addition, the extension and retraction of the bipolar radiofrequency ablation electrode tip are realized by holding and squeezing a handle which is deviated from a movement axis by hands, so that the front and rear part structures which respectively fix the electrode sleeve and the electrode core generate relative movement of tightening and pulling, the electrode core generates relative movement relative to the electrode sleeve, and the purpose of extending or retracting the electrode head is achieved. However, the disadvantage of this operation method is that the operator cannot directly feel the pressure applied to the target tissue by the electrode extending out, and thus cannot control the area and depth of tissue coagulation by applying precise pressure, and this method needs to apply a large force to overcome the elastic force of the handle, then squeeze the spring between the front and rear parts to achieve the extending of the electrode tip, and needs a large force to complete the operation of the bipolar rf ablation electrode, which easily causes fatigue of the operator's hand in case of long operation time, and may affect the normal operation.

Aiming at the problems that the operation is influenced by the fact that the head of an electrode cannot be adjusted or adjusted after an existing bipolar radiofrequency ablation electrode enters a focal zone and the adjustment accuracy is low in the related art, an effective solution is not provided at present.

Therefore, the inventor provides a surgical electrode for an electromagnetic knife by virtue of experience and practice of related industries for many years so as to overcome the defects of the prior art

Disclosure of Invention

The invention aims to provide a surgical electrode for an electromagnetic knife, which can feed back the pressure of an electrode tip contacting with tissues in the using process, can enable an operator to directly feel the fed-back pressure, can better control the using effect, is convenient to operate, is beneficial to saving the physical strength of the operator and ensures the smooth operation of the operation.

The purpose of the invention can be realized by adopting the following scheme:

the invention provides a surgical electrode for an electromagnetic knife, which comprises a front handle, a rear handle and an electrode core, wherein an electrode outlet is formed in the front end of the front handle, the rear end of the front handle is circumferentially and rotatably connected with the front end of the rear handle, the electrode core penetrates through the front handle and the rear handle, the rear end of the electrode is fixed in the rear handle and is connected with a cable, the front handle and the rear handle can axially move, and the position of the electrode core is driven by the rear handle so that the front end of the electrode core extends out of the electrode outlet.

In a preferred embodiment of the present invention, the surgical electrode for the electromagnetic knife further includes an outer tube, the outer tube is fixedly disposed on the front handle, a front end of the outer tube extends forward of the front handle, an opening for extending a front end of the electrode core is disposed at a position on the outer tube and close to the front end of the outer tube, the opening is the electrode outlet, the electrode core passes through the outer tube, and the front end of the electrode core can extend from the electrode outlet to the outside of the outer tube.

In a preferred embodiment of the present invention, a first accommodating cavity is formed inside the front handle, a spring is disposed in the first accommodating cavity, a front end of the rear handle can movably extend into the first accommodating cavity along an axial direction of the front handle, and the spring is located between an inner wall of the first accommodating cavity and the front end of the rear handle to provide a driving force for returning the rear handle to a home position after the rear handle moves.

In a preferred embodiment of the present invention, a front end of the rear handle is provided with a telescopic portion extending along an axial direction thereof, the telescopic portion can circumferentially and rotatably extend into the first accommodating cavity, the telescopic portion can move in the first accommodating cavity along the axial direction of the rear handle, and two ends of the spring are respectively connected to an inner wall of the first accommodating cavity and the front end of the telescopic portion.

In a preferred embodiment of the present invention, the outer wall of the telescopic portion is provided with a plurality of circumferential positioning grooves at intervals along the circumferential direction of the telescopic portion, and the inner wall of the opening of the first accommodating cavity is provided with a circumferential positioning protrusion capable of being engaged with the circumferential positioning groove at a corresponding position in a matching manner, so as to position the rotation angle of the electrode core.

In a preferred embodiment of the present invention, a plurality of axial positioning grooves are disposed on an inner wall of the first accommodating cavity, the axial positioning grooves are axially spaced from each other along the first accommodating cavity, and an axial positioning protrusion capable of being engaged with the axial positioning groove is disposed on an outer wall of the telescopic portion located in the first accommodating cavity to position a length of the front end of the electrode core extending out of the electrode outlet.

In a preferred embodiment of the present invention, a fixing ring is disposed inside the front handle, the outer tube passes through a central hole of the fixing ring, and an inner wall of the central hole is pressed against an outer wall of the outer tube.

In a preferred embodiment of the present invention, at least two handles are disposed on an outer wall of the front handle, and the two handles are disposed opposite to each other on both sides of the front handle.

In a preferred embodiment of the present invention, a second accommodating cavity is formed in an inner wall of the rear handle, a locking channel communicating the first accommodating cavity with the second accommodating cavity is arranged at a front end of the rear handle, a cross-sectional area of the locking channel gradually decreases from the first accommodating cavity to the second accommodating cavity, the electrode core is clamped in the locking channel, a rear end of a positive electrode wire and a rear end of a negative electrode wire in the electrode core both extend into the second accommodating cavity, and the rear end of the positive electrode wire and the rear end of the negative electrode wire are isolated from each other in the second accommodating cavity.

In a preferred embodiment of the present invention, a partition board is disposed in the second accommodating chamber, and the rear end of the positive electrode wire and the rear end of the negative electrode wire are respectively located at two sides of the partition board.

In a preferred embodiment of the present invention, the front handle is formed by splicing two front structural members with a semi-circular cross section, and the rear handle is formed by splicing two rear structural members with a semi-circular cross section.

In a preferred embodiment of the present invention, a front end cover is fixedly sleeved on the front end of the front handle to lock the two front structural members after splicing and forming;

the rear end of the rear handle is fixedly sleeved with a rear end cover so as to lock the spliced and formed two rear structural members.

In a preferred embodiment of the present invention, a locking ring is fixedly sleeved on the front end of the rear handle, so that the inner wall of the locking channel clamps the electrode core.

In a preferred embodiment of the present invention, the outer wall of the front handle and the outer wall of the rear handle are respectively provided with a first mark and a second mark to cooperatively display a rotation angle between the front handle and the rear handle.

From the above, the surgical electrode for the electromagnetic knife of the present invention has the following characteristics and advantages: the electrode core is arranged in the front handle and the rear handle in a penetrating mode, the rear end of the electrode core is fixed in the rear handle and connected with the cable, the front handle and the rear handle are connected in a circumferential rotating mode, therefore, in the process of actual use, the position of an electrode outlet can be adjusted by an operator, the front end of the electrode core extends out of the electrode outlet in the front handle, the operator rotates the rear handle according to the position of a focus, the deflection angle of the front end of the electrode core is changed according to the rotation angle of the rear handle, the front end of the electrode core is moved to a preset position for operation, operation is convenient and labor-saving, and the problem that operation is difficult to operate or cannot be performed due to the fact that the position of the focus is special is effectively solved.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention.

Wherein:

FIG. 1: the invention relates to a structural schematic diagram of a surgical electrode for an electromagnetic knife.

FIG. 2: is a partial enlarged view of an electrode in the surgical electrode for the electromagnetic knife.

FIG. 3: is a front cross-sectional view of a surgical electrode for an electromagnetic knife in accordance with the present invention.

FIG. 4 is a schematic view of: a top view of a surgical electrode for an electromagnetic knife in accordance with the present invention.

FIG. 5: is a schematic diagram of the internal structure of the front handle in the operation electrode for the electromagnetic knife.

FIG. 6: is one of the schematic internal structure diagrams of the rear handle in the operation electrode for the electromagnetic knife.

FIG. 7: is the second schematic internal structure diagram of the rear handle of the operation electrode for the electromagnetic knife of the present invention.

The reference numbers in the present invention are:

1. a front handle; 101. A first accommodating cavity;

102. a handle; 103. A front structural member;

2. a rear handle; 201. A second accommodating cavity;

202. locking the channel; 203. A rear structural member;

204. a telescopic part; 3. An outer tube;

4. an electrode core; 401. An insulating tube;

4011. a first channel; 4012. A second channel;

402. a positive electrode wire; 403. A negative electrode wire;

5. a cable; 6. A circumferential positioning groove;

7. a circumferential positioning protrusion; 8. An axial positioning groove;

9. a partition plate; 10. A front end cover;

11. a rear end cap; 12. Locking a ring;

13. a first identifier; 14. A second identifier;

15. a fixing ring; 16. A spring.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.

The words with directional indication such as front, back, inner and outer in the present invention are all used in the same way as the directions of front, back, inner and outer in the attached fig. 1, and are also described herein.

As shown in fig. 1, 3 and 4, the present invention provides an operation electrode for an electromagnetic knife, which includes a front handle 1, a rear handle 2 and an electrode core 4, wherein the front handle 1 and the rear handle 2 are both cylindrical structures, the front end of the front handle 1 is provided with an electrode outlet, the rear end of the front handle 1 is connected with the front end of the rear handle in a circumferential rotation manner, the electrode core 4 is inserted into the front handle 1 and the rear handle 2, the rear end of the electrode core 4 is fixed inside the rear handle 2 and connected with a cable 5, the front handle 1 and the rear handle 2 can move axially, and the electrode core 4 can be driven to move axially by operating the rear handle 2 to enable the front end of the electrode core 4 to extend out of the front handle 1 from the electrode outlet.

According to the invention, the electrode core 4 is arranged in the front handle 1 and the rear handle 2 in a penetrating manner, the rear end of the electrode core 4 is fixed in the rear handle 2 and is connected with the cable 5, and the front handle 1 and the rear handle 2 are connected in a circumferential rotating manner, so that in the actual use process, an operator can adjust the position of the electrode core 4 by adjusting the axial position of the rear handle 2, so that the relative position of the electrode core 4 and the front handle 1 is changed, the front end of the electrode core 4 extends out of an electrode outlet on the front handle 1, and the operator rotates the rear handle 2 according to the position of a focus, so that the deflection angle of the front end of the electrode core 4 is changed along with the rotation angle of the rear handle 2, and the front end of the electrode core 4 can be moved to a preset position (namely, the focus position) to perform operation, the operation is convenient and labor-saving, and the problem that the operation is difficult or impossible due to the special position of a stove can be effectively solved.

Specifically, as shown in fig. 1, the whole electrode core 4 passes through the front handle 1, a part of the electrode core 4 is located in the rear handle 2, the front end of the electrode core 4 can extend out from the electrode outlet on the front handle 1, and the rear end of the electrode core 4 is fixed inside the rear handle 2.

Further, as shown in fig. 1 and 2, the electrode core 4 includes an insulating tube 401, a positive electrode wire 402 and a negative electrode wire 403, a first cavity 4011 and a second cavity 4012 axially penetrating through the insulating tube 401 are formed inside the insulating tube 401, the first cavity 4011 is isolated from the second cavity 4012, the positive electrode wire 402 is inserted into the first cavity 4011, and the negative electrode wire 403 is inserted into the second cavity 4012.

Specifically, set up the insulating part in insulating tube 401's inside, separate the inside of insulating tube 401 into first chamber way 4011 and second chamber way 4012 through the insulating part, and the cross section of first chamber way 4011 and second chamber way 4012 all is "D" font. The insulating tube 401 can be made of, but not limited to, teflon, and has good insulation, high temperature resistance and corrosion resistance, and the front end of the positive electrode wire 402 and the front end of the negative electrode wire 403 are respectively bonded and fixed with the insulating tube 401 by using a fastening adhesive with good insulation and heat resistance, so that the stability of connection between the positive electrode wire 402 and the negative electrode wire 403 and the insulating tube 401 is improved.

Further, a fixed inclination angle can be arranged at the front part of the electrode core 4, so that the front end of the electrode core 4 can act on the focus position after extending out of the electrode outlet on the front handle 1.

In an optional embodiment of the present invention, as shown in fig. 3 and 4, the surgical electrode for the electromagnetic knife further includes an outer tube 3, a rear end of the outer tube 3 is fixedly disposed on the front handle 1, a front end of the outer tube 3 extends forward of the front handle 1, an opening for extending a front end of the electrode core 4 is disposed on the outer tube 3 and near a front end of the outer tube 3, the opening is an electrode outlet, the electrode core 4 passes through the outer tube 3, and a front end of the motor core 4 can extend out of the outer tube 3 from the electrode outlet.

In an alternative embodiment of the present invention, as shown in fig. 3, a first accommodating cavity 101 is formed inside the front handle 1, a spring 16 is disposed inside the first accommodating cavity 101, a front end of the rear handle 2 can extend into the first accommodating cavity 101 in an axial direction of the front handle 1, the spring 16 is located between an inner wall of the first accommodating cavity 101 and the front end of the rear handle 2, and the spring 16 can provide a driving force for returning to a home position (i.e., an elastic force generated by deformation of the spring 16) for the rear handle 2 after the rear handle 2 moves.

Further, as shown in fig. 3 and 4, a telescopic portion 204 extending along the axial direction is provided at the front end of the rear handle 2, the cross-sectional area of the telescopic portion 204 is smaller than that of the body of the rear handle 2, so that the telescopic portion 204 can circumferentially and rotatably extend into the first accommodating cavity 101, the telescopic portion 204 can move in the first accommodating cavity 101 along the axial direction of the rear handle 2, one end of the spring 16 is connected with the inner wall of the first accommodating cavity 101, and the other end of the spring 16 is connected with the front end of the telescopic portion 204.

Further, as shown in fig. 4 and 5, a plurality of circumferential positioning grooves 6 are provided on the outer wall of the telescopic portion 204 at circumferential intervals (which may be at equal intervals) along the telescopic portion 204, the circumferential positioning grooves 6 are strip-shaped grooves extending along the axial direction of the telescopic portion 204, and circumferential positioning protrusions 7 capable of being engaged with the circumferential positioning grooves 6 at corresponding positions are provided on the inner wall of the opening of the first accommodating chamber 101 to position the rotation angle of the electrode core. In the process of rotating the rear handle 2, the circumferential positioning bulge 7 can rotate and be embedded into the corresponding circumferential positioning groove 6, so that the purpose of rotary positioning is achieved.

Further, as shown in fig. 5, a plurality of axial positioning grooves 8 are provided on the inner wall of the first accommodating chamber 101, the axial positioning grooves 8 are annular grooves formed along the circumferential direction of the first accommodating chamber 101, the axial positioning grooves 8 are arranged along the axial direction of the first accommodating chamber 101 at intervals, axial positioning protrusions (not shown) capable of being engaged with the axial positioning grooves 8 are provided on the outer wall of the telescopic portion 204 located in the first accommodating chamber 101, a distance can be preset between two adjacent axial positioning grooves 8, the telescopic portion 204 can move axially in the first accommodating chamber 101 by pushing the rear handle 2, the telescopic portion 204 can slide and engage with different axial positioning grooves 8 in an axial movement process in the first accommodating chamber 101, the axial positioning protrusions can slide and engage with different axial positioning grooves 8, thereby positioning the moving position of the telescopic portion 204, and further positioning the length of the front end of the electrode core 4 extending out of the electrode outlet, thereby achieving the purpose of axial positioning.

In an alternative embodiment of the present invention, as shown in fig. 3, a fixing ring 15 is fixedly disposed inside the front handle 1 and near the front end thereof, a central hole is formed in the middle of the fixing ring 15, the outer tube 3 passes through the central hole of the fixing ring 15, the inner wall of the central hole is pressed against the outer wall of the outer tube 3, the outer tube 3 is fixedly connected with the front handle 1 through the fixing ring 15, and the rear handle 2 is pushed forward and backward to move, so that the electrode core 4 can be driven to adjust the position in the axial direction, and the front end of the electrode core 4 extends out of the electrode outlet on the front handle 1.

Further, as shown in fig. 3 to 5, at least two handles 102 are disposed on the outer wall of the front handle 1, the two handles 102 are disposed on two sides of the front handle 1, when the operator uses the electrode assembly, the two handles 102 can be hooked by two fingers (e.g., an index finger and a middle finger), the rear end of the rear handle 2 is pushed by another finger (e.g., a thumb) or a palm, the rear handle 2 is pushed to move forward in the axial direction in a manner similar to that of a push-and-pull injector, and the electrode core 4 is driven to synchronously move forward to the front end of the electrode core 4, and the front end extends out of an electrode outlet on the front handle 1.

In an alternative embodiment of the present invention, as shown in fig. 3, 6, and 7, a second receiving cavity 201 is formed on an inner wall of the rear handle 2, a locking channel 202 communicating the first receiving cavity 101 and the second receiving cavity 201 is disposed at a front end of the rear handle 2, a cross-sectional area of the locking channel 202 is gradually reduced from the first receiving cavity 101 to the second receiving cavity 201 (i.e., a tapered duct), the electrode core 4 can be clamped in the locking channel 202 by disposing the locking channel 202, a rear end of the positive electrode wire 402 and a rear end of the negative electrode wire 403 in the electrode core 4 both extend into the second receiving cavity 201 (no insulating tube 401 is disposed outside the positive electrode wire 402 and outside the negative electrode wire 403 at this position), a rear end of the positive electrode wire 402 and a rear end of the negative electrode wire 403 are separated in the second receiving cavity 201, and the rear ends of the positive electrode wire 402 and the negative electrode wire 403 are connected to the cable 5.

Further, as shown in fig. 3, 6, and 7, a partition 9 is disposed at an intermediate position inside the second accommodating chamber 201, and a rear end of the positive electrode wire 402 and a rear end of the negative electrode wire 403 are respectively located at two sides of the partition 9, so that the positive electrode wire 402 and the negative electrode wire 403 are separated from each other by the partition 9, thereby achieving the purpose of insulation.

In an alternative embodiment of the present invention, as shown in fig. 3 and 4, the front handle 1 is formed by splicing two front structural members 103 with a semi-circular cross section, and the rear handle 2 is formed by splicing two rear structural members 203 with a semi-circular cross section. The front end of the front handle 1 is fixedly sleeved with a front end cover 10, the front end cover 10 is in threaded connection with the front end of the front handle 1, and the two spliced front structural members 103 can be locked and fixed through the front end cover 10; the fixed cover in rear portion handle 2's rear end is equipped with rear end cover 11, and rear end cover 11 and rear portion handle 2's rear end threaded connection can lock two rear portion structures 203 after the concatenation shaping fixedly through rear end cover 11 to guarantee anterior handle 1 and the fashioned stability of rear portion handle 2, the dismouting of each structure in the first holding chamber 101 of being convenient for still of this mosaic structure simultaneously and second holding chamber 201 has better practicality.

Further, as shown in fig. 3, a locking ring 12 is fixedly sleeved at the front end of the rear handle 2, and the two spliced and formed rear structural members 203 can be locked and fixed by the locking ring 12, so that not only can the forming stability of the rear handle 2 be ensured, but also the electrode core 4 can be clamped by the inner wall of the locking channel 202, and the stable connection between the electrode core 4 and the rear handle 2 can be ensured.

In an alternative embodiment of the present invention, as shown in fig. 4, a first mark 13 is disposed on the outer wall of the front handle 1, a second mark 14 is disposed on the outer wall of the rear handle 2, and during the relative rotation of the front handle 1 and the rear handle 2, the rotation angle between the front handle 1 and the rear handle 2 can be displayed by the cooperation of the first mark 13 and the second mark 14, so that the operator can accurately know the rotation angle of the front end of the electrode core 4, and the front end of the electrode core 4 can be ensured to accurately reach the lesion site.

Further, as shown in fig. 4, the first mark 13 may be, but is not limited to, a scale mark (scale line) disposed on an outer wall of the front handle 1 along a circumferential direction thereof, and different scale marks correspond to different angles; the second mark 14 can be but is not limited to a direction mark (arrow) arranged on the outer wall of the rear handle 2, the direction mark points to the direction of the front handle 1, and in the process of rotating the rear handle 2, an operator can directly and accurately know the rotation angle of the front end of the electrode core 4 by looking at the second mark 14 and the first mark 13 corresponding to the second mark.

The operation process of the surgical electrode for the electromagnetic knife in the embodiment is as follows: an operator hooks the two handles 102 on the front handle 1 with two fingers (such as an index finger and a middle finger) respectively, pushes the rear end of the rear handle 2 with the thrust of the other finger (such as a thumb) or a palm, pushes the rear handle 2 to move forwards in the axial direction in a manner similar to pushing an injector, and then drives the electrode core 4 to synchronously move forwards until the front end of the electrode core 4 extends out of an electrode outlet on the front handle 1 through the rear handle 2. After the electrode core 4 is pushed out, the rear handle 2 is rotated to a preset angle, so that the front end of the electrode core 4 and the rear handle 2 synchronously rotate, and the focus position is accurately reached. Because the front end of the telescopic part 204 can compress the spring 16 in the process of moving the rear handle 2 forwards, after the operation is completed, an operator only needs to loosen the rear end of the rear handle 2, and the rear handle 2 drives the electrode core 4 to return to the original position under the elastic action of the spring 16, so that the front end of the electrode core 4 is automatically retracted into the front handle 1.

The operation electrode for the electromagnetic knife is mainly used in spine minimally invasive surgery of an intervertebral foramen mirror and used for tissue coagulation hemostasis, cauterization ablation and the like.

The operation electrode for the electromagnetic knife has the characteristics and advantages that:

1. this a surgical electrode for electromagnetism sword, the position of electrode core 4 is adjusted to the accessible, make electrode core 4 and anterior handle 1's relative position change, thereby can make the front end of electrode core 4 stretch out by the electrode export, operating personnel rotates rear portion handle 2 according to the position of focus again, make the front end of electrode core 4 rotate and predetermine the angle and can carry out axial and circumferential location, thereby remove the focus position with the front end accuracy of electrode core 4, and convenient for operation, and is laborsaving, effectively solve can be because of the special problem that is difficult to operate or can not operate in focus position.

2. When the operation electrode for the electromagnetic knife is used, an operator directly applies thrust through a hand to adjust the position of the electrode core 4, and the operator can directly feel the feedback pressure to further know the force application size, so that the use effect can be better controlled, and the solidification effect can be accurately controlled; the operator does not need to additionally overcome other resistance in the force application process, the physical strength is saved, the physical strength of the operator is favorably saved, and the smooth operation is ensured.

3. In the operation electrode for the electromagnetic knife, the rotation angle and the axial movement position of the electrode core 4 can be respectively positioned through the circumferential positioning structure and the axial positioning structure; in addition, still can cooperate through first sign 13 and second sign 14 and make operating personnel can accurately learn the turned angle of electrode core 4, and operating personnel also can adjust arbitrary angle according to actual need, has better adjustability, ensures that electrode core 4 can accurately arrive and stably keep in the focus position, guarantees going on smoothly of operation.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.

Claims (14)

1. The utility model provides a surgical electrode for electromagnetism sword, a serial communication port, a surgical electrode for electromagnetism sword includes anterior handle, rear portion handle and electrode core, the front end of anterior handle is equipped with the electrode export, the rear end of anterior handle with the front end of rear portion handle can connect with circumferential direction, the electrode core wears to locate anterior handle with the inside of rear portion handle, the rear end of electrode be fixed in the inside of rear portion handle and be connected with the cable, anterior handle with can axial displacement between the rear portion handle, through the rear portion handle drives the position of electrode core to the front end that makes the electrode core stretches out the electrode export.

2. The electrode for the operation of the electromagnetic knife according to claim 1, wherein the electrode for the operation of the electromagnetic knife further comprises an outer tube, the outer tube is fixedly disposed on the front handle, the front end of the outer tube extends to the front of the front handle, an opening for the front end of the electrode core to extend out is disposed on the outer tube and near the front end of the outer tube, the opening is the electrode outlet, the electrode core passes through the outer tube, and the front end of the electrode core can extend out of the electrode outlet to the outside of the outer tube.

3. The surgical electrode for the electromagnetic knife according to claim 2, wherein a first accommodating cavity is formed inside the front handle, a spring is arranged in the first accommodating cavity, the front end of the rear handle can movably extend into the first accommodating cavity along the axial direction of the front handle, and the spring is located between the inner wall of the first accommodating cavity and the front end of the rear handle so as to provide a driving force for the rear handle to return to the original position after the rear handle moves.

4. The surgical electrode for the electromagnetic knife according to claim 3, wherein the front end of the rear handle is provided with a telescopic portion extending along the axial direction thereof, the telescopic portion can circumferentially and rotatably extend into the first accommodating cavity, the telescopic portion can move in the first accommodating cavity along the axial direction of the rear handle, and two ends of the spring are respectively connected with the inner wall of the first accommodating cavity and the front end of the telescopic portion.

5. The surgical electrode for the electromagnetic knife according to claim 4, wherein a plurality of circumferential positioning grooves are arranged on the outer wall of the telescopic portion at intervals along the circumferential direction of the telescopic portion, and a circumferential positioning protrusion which can be in fit clamping connection with the circumferential positioning groove at the corresponding position is arranged on the inner wall of the opening of the first accommodating cavity so as to position the rotation angle of the electrode core.

6. The surgical electrode for the electromagnetic knife according to claim 4, wherein a plurality of axial positioning grooves are formed in the inner wall of the first accommodating cavity, the axial positioning grooves are arranged at intervals along the axial direction of the first accommodating cavity, and axial positioning protrusions capable of being matched and clamped with the axial positioning grooves are formed in the outer wall of the telescopic portion in the first accommodating cavity so as to position the length of the front end of the electrode core extending out of the electrode outlet.

7. A surgical electrode for an electromagnetic knife according to claim 3, wherein the front handle is provided with a fixing ring inside, the outer tube passes through a central hole of the fixing ring, and an inner wall of the central hole is pressed against an outer wall of the outer tube.

8. A surgical electrode for an electromagnetic knife as claimed in claim 3, wherein the outer wall of the forward handle is provided with at least two grips disposed on opposite sides of the forward handle.

9. The surgical electrode for the electromagnetic knife according to claim 3, wherein a second accommodating cavity is formed on the inner wall of the rear handle, a locking channel communicated with the first accommodating cavity and the second accommodating cavity is arranged at the front end of the rear handle, the cross-sectional area of the locking channel is gradually reduced from the first accommodating cavity to the second accommodating cavity, the electrode core is clamped in the locking channel, the rear end of the positive electrode wire and the rear end of the negative electrode wire in the electrode core both extend into the second accommodating cavity, and the rear end of the positive electrode wire and the rear end of the negative electrode wire are isolated in the second accommodating cavity.

10. The surgical electrode for the electromagnetic knife according to claim 9, wherein a partition is disposed in the second accommodating cavity, and the rear end of the positive electrode wire and the rear end of the negative electrode wire are respectively located at two sides of the partition.

11. The surgical electrode for an electromagnetic scalpel of claim 9, wherein the front handle is formed by splicing two front structures having a semi-circular cross section, and the rear handle is formed by splicing two rear structures having a semi-circular cross section.

12. The surgical electrode for the electromagnetic knife according to claim 11, wherein a front end cap is fixedly sleeved on the front end of the front handle to lock the two front structural members after splicing and forming;

the rear end of the rear handle is fixedly sleeved with a rear end cover so as to lock the spliced and formed two rear structural members.

13. The surgical electrode for the electromagnetic knife according to claim 12, wherein a locking ring is fixedly sleeved on a front end of the rear handle so that an inner wall of the locking channel clamps the electrode core.

14. The surgical electrode for an electromagnetic knife according to claim 1, wherein the outer wall of the front handle and the outer wall of the rear handle are respectively provided with a first mark and a second mark to cooperatively display a rotation angle between the front handle and the rear handle.

Images