CN114041869A

CN114041869A - Low-damage telescopic light source surgical electrotome

Info

Publication number: CN114041869A
Application number: CN202111447920.4A
Authority: CN
Inventors: 苏英; 尹作凯; 刘雨
Original assignee: Zhejiang Shuyou Instrument And Equipment Co ltd
Current assignee: Zhejiang Shuyou Instrument And Equipment Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-02-15
Also published as: WO2023098313A1

Abstract

The invention discloses a low-damage telescopic light source surgical electrotome, which comprises a first sleeve, a second sleeve with a conductive function and an electrode knife, wherein the second sleeve is fixedly connected with the first sleeve, the electrode knife can be a diamond electrode knife, a clamping structure is arranged between the electrode knife and the first sleeve, the electrode knife is detachably connected with the first sleeve through the clamping structure, a conductive piece is arranged in the second sleeve close to the first sleeve, the electrode knife penetrates through the first sleeve and is in contact connection with the second sleeve through the conductive piece, the electrode knife is detachably fixed on the first sleeve through the clamping structure, different types of electrode knives are convenient to replace, medical workers can use different knife heads according to specific conditions of patients, the cost is saved, the replacement convenience is ensured, the practicability and the reliability are improved, the second sleeve can be used as a smoke absorbing pipe and can also be used as a conductive piece, the stability of electrifying can be ensured while smoking is ensured.

Description

Low-damage telescopic light source surgical electrotome

Technical Field

The invention relates to the field of preparation of medical instrument accessories, in particular to a low-damage telescopic light source surgical electrotome.

Background

The surgical knife pen is a high-frequency electric knife which can destroy the pathological tissue by current, and is not caused by simple heating of electrode or knife head, and is characterized by that it can collect high-frequency current with high current density to directly destroy the tissue positioned under the contact point of effective electrode tip, and when the temperature of the tissue or cell contacted with or adjacent to the effective electrode is raised to the protein denaturation in the cell, the coagulation can be produced, and said accurate surgical effect is determined by waveform, voltage, current, type of tissue and shape and size of electrode.

The surgical electric knife pen used in the conventional operation is provided with a common electrode, does not perform smoking operation, and often generates smoke in the process of performing certain operation operations such as cutting blood coagulation, so that a plurality of existing surgical electric knives are communicated with smoke suction pipes, and different types of surgical electric knife pens are required to be used based on different operation requirements and operation environments. However, the knife head of the existing electric scalpel can not be replaced, either the electric scalpel is provided with a common electrode or a conventional smoking electric scalpel pen, and the smoking electric scalpel which can be conveniently replaced is not provided, thereby affecting the convenient and rapid use of the operation and causing the waste of the electric scalpel, although the prior electric scalpel with a replaceable cutter head is provided, for example, the electric scalpel in the electric scalpel pen with a replaceable electrode cutter body in patent CN202110850528.8 can improve the resistance in sliding by utilizing the elasticity of the rubber ring and fix the moved hollow electrode rod, the telescopic electrode is fixed, but the electrode cannot be completely fixed by the elasticity of the rubber ring, in the operation process, the problem of electrode displacement is easy to occur, great potential safety hazard is brought to the operation, therefore, it is necessary to provide an electric scalpel which is convenient to replace and has no displacement of the electrode tip after replacement.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a low-damage telescopic light source surgical electrotome.

The technical purpose of the invention is realized by the following technical scheme:

a low-damage telescopic light source surgical electrotome comprises a first sleeve, a second sleeve with a conducting function and an electrode knife, wherein the second sleeve is fixedly connected with the first sleeve, a clamping structure is arranged between the electrode knife and the first sleeve, the electrode knife is detachably connected with the first sleeve through the clamping structure, a conducting piece is arranged in the second sleeve close to the first sleeve, the electrode knife penetrates through the first sleeve and is in contact connection with the second sleeve through the conducting piece, the electrode knife is detachably fixed on the first sleeve through the clamping structure, different types of electrode knives are convenient to replace, medical workers can use different knife heads according to specific conditions of patients, cost is saved, convenience in replacement is guaranteed, practicability and reliability are improved, and meanwhile, the electrode knife is communicated with the second sleeve with the conducting function through the conducting piece, can regard as the smoking pipe to use with the second sleeve pipe, can regard as the conducting strip to use again for the operation electrotome need not to install other conducting strips, reduces the step of equipment, can guarantee again the stability of circular telegram when guaranteeing the smoking.

The electrode knife can be a diamond electrode knife, the edge of the electrode is sharp, the middle of the electrode is raised, the sharp edge is more beneficial to gathering electric energy to the edge, the energy dispersion is reduced as far as possible, the energy waste can be reduced in work, the same operation effect can be realized only by applying less energy than a conventional electrode, meanwhile, as excessive energy is not diffused to the periphery, the heat damage to adjacent tissues in the working process can be reduced, good tissues and nerves can be prevented from being accidentally injured, fine operation and postoperative recovery of a patient can be facilitated, the operation efficiency is improved, the raised middle of the electrode is beneficial to maintaining the integral strength of the electrode, and the deformation caused by stress in the working process is prevented.

Preferably, the clamping structure comprises an annular card, an extrusion spring and an extrusion block, wherein a first annular groove is formed in the inner side wall of the first sleeve along the axial direction, the annular card is arranged in the first annular groove, the extrusion spring is arranged between the annular card and the first annular groove, the extrusion block is arranged on the annular card and penetrates through the side wall of the first sleeve to extend to the outer side of the first sleeve, the extrusion block and the extrusion spring are arranged oppositely, a plurality of second annular grooves matched with the annular card are formed in the outer side wall of the electrode knife in an array mode, the annular card and the circle center of the first annular groove are located on the same straight line but not located in the same circle center, the extrusion spring is compressed through extrusion of the extrusion block, so that the circle center of the annular card is driven to move and is close to the circle center of the first annular groove, when being in same centre of a circle, the annular card hides in first annular groove, thereby make the electrode sword can run through first sleeve pipe until the electrode sword contacts to electrically conductive when, stop pressing the extrusion piece, thereby extrusion spring drives the annular card return and goes into the annular card with the annular card return and go into to the second annular groove, accomplish dismantling between electrode sword and the first sleeve pipe and be connected, adopt this kind of mode, it is convenient to install, the complexity of changing the tool bit has been simplified, make the electrode sword after the installation can be firmly be connected with first sleeve pipe simultaneously, prevent to take place in the operation that the electrode aversion brings very big potential safety hazard for the operation.

Preferably, the second annular groove has been seted up a plurality of, makes the electrode sword can possess the function of certain depth of regulation through a plurality of annular groove, can be applicable to the wound of the different degree of depth, uses more humanized.

Preferably, the electrode cutter comprises a cutter body and a third sleeve arranged on the outer side wall of the cutter body in a sleeved mode, the outer side wall of the third sleeve is provided with the second annular groove, and the third sleeve and the second sleeve are made of insulating materials, so that the use safety is guaranteed.

Preferably, the conductive member includes a conductive annular retaining ring, a conductive spring, and a conductive extrusion plate, the conductive annular retaining ring is disposed on the inner sidewall of the second sleeve, the conductive extrusion plate is disposed at a position of the second sleeve close to the first sleeve and does not contact with the sidewall of the second sleeve, the conductive spring is disposed between the conductive annular retaining ring and the conductive extrusion plate, the conductive annular retaining ring, the conductive spring, and the conductive extrusion plate are all made of conductive material, the conductive material may be copper material, and then the surface of the copper material is subjected to anti-oxidation treatment, so that the service life can be prolonged, the contact connection between the electrode knife and the extrusion plate is completed by the extrusion of the knife body of the electrode knife on the conductive extrusion plate, so as to complete the conductive function, the contact area between the electrode knife and the conductive extrusion plate is increased, compared with the contact between the electrode knife head and the conductive plate in a point contact manner adopted in the market, the stability of circular telegram is higher, through conductive spring, when the electrode sword needs to stretch out and draw back the regulation, make conductive spring can extrude, guarantee the contact between electrode sword and the electrically conductive stripper plate all the time, simultaneously in some occasions if the electrode sword needs frequently to be changed to the electric scalpel of operation, the contact mode of the electrode tool bit of this case and second sleeve pipe, after changing the electrode sword, the circular telegram of electrode tool bit is more stable, and adopt some patents like that what adopt between electrode sword and the conducting strip mentioned in CN202021920513.1 is the contact of point, the area of contact of electrode sword and conducting strip is little, extrude through rubbing power, wear and tear easily in the long-term use, lead to contact failure, the accident appears easily, therefore the mode of this case is superior many, life is longer.

Preferably, the conductive extrusion plate is provided with a plurality of vent holes, and the vent holes, the gaps of the conductive annular retainer ring and the gaps of the conductive springs ensure the hollow design inside the second sleeve, so that the second sleeve has the function of smoking while having the function of conducting electricity.

Preferably, the diameter of the conductive spring is larger than the inner diameter of the conductive annular check ring, so that the conductive spring is guaranteed to be always kept between the conductive annular check ring and the conductive extrusion plate in the extrusion process of the conductive spring.

Preferably, a gap is formed between the third sleeve and the first sleeve, so that the smoking pipe can have a smoking function.

Preferably, the multifunctional electric torch further comprises a handle used for fixing the smoke absorbing pipe and capable of being controlled by a hand, a PCB, a button used for pressing and controlling the PCB, and an LED lamp, wherein the LED lamp is arranged at the front end of the handle and electrically connected with the PCB, the PCB is connected with the smoke absorbing pipe through a spring pin, the spring pin is in the prior art, repeated description is omitted in the scheme, the PCB is always kept in contact with a second sleeve through the spring pin, the axis of the projection light of the LED lamp is parallel to the axis of the cutter head, illumination is carried out along with the movement of the cutter head, a visual field blind area is avoided, the illumination requirement of a deep surgery can be met, and the functions of electric cutting, electric coagulation and illumination can be completed through the button.

Preferably, the handle is provided with a squeezing button which is convenient for squeezing the squeezing block.

In conclusion, the invention has the beneficial effects that:

1. the electrode knife is detachably fixed on the first sleeve through the clamping structure, so that different types of electrode knives can be conveniently replaced, medical workers can use different knife heads according to specific conditions of patients, the cost is saved, the replacement convenience is guaranteed, the practicability and the reliability are improved, meanwhile, the electrode is communicated with the second sleeve with the conduction function through the conduction piece, the second sleeve can be used as a smoke suction pipe and can be used as a conduction piece, the operation electrotome is not required to be provided with other conduction pieces, the assembly steps are reduced, and the conduction stability is guaranteed while smoking is guaranteed;

2. according to the invention, the extrusion spring is compressed through extrusion of the extrusion block, so that the annular clamping piece is driven to move, the circle center of the annular clamping piece is close to the circle center of the first annular groove, when the annular clamping piece is positioned at the same circle center, the annular clamping piece is hidden in the first annular groove, so that the electrode knife can penetrate through the first sleeve until the electrode knife contacts the conductive piece, the extrusion block is stopped being pressed, so that the extrusion spring drives the annular clamping piece to return to clamp the annular clamping piece into the second annular groove, and the detachable connection between the electrode knife and the first sleeve is completed, and by adopting the mode, the installation is convenient and fast, the complexity of replacing the knife head is simplified, meanwhile, the installed electrode knife can be firmly connected with the first sleeve, and the occurrence of electrode displacement in the operation is prevented, so that great potential safety hazard is brought to the operation;

3. the contact connection between the electrode knife and the extrusion plate is completed by extruding the conductive extrusion plate by the knife body of the electrode knife, so that the conductive function is completed, the electrode knife and the conductive extrusion plate are in surface-to-surface contact connection, the contact area is enlarged, and compared with the mode that a point-to-point contact is adopted between the electrode knife head and the conductive plate adopted in the market, the electrified stability is higher;

4. according to the electrode knife, the conductive spring can be extruded through the conductive spring and the second annular groove when the electrode knife needs to be telescopically adjusted, the contact between the electrode knife and the conductive extrusion plate is always ensured, the electrode knife can have a certain length adjusting function, the electrode knife can be suitable for wounds with different depths, and the use is more humanized.

Drawings

FIG. 1 is a disassembled view of the electrosurgical knife with light source of the present invention;

FIG. 2 is a schematic view of the entire electrosurgical knife with a light source according to the present invention;

FIG. 3 is a schematic sectional view of the smoking pipe of the present invention;

FIG. 4 is a schematic cross-sectional view of the electrode knife of the present invention after it has been snapped into the first sleeve;

FIG. 5 is a longitudinal view of the invention with the extrusion blocks pressing on the ring cards;

FIG. 6 is a transverse schematic view of the invention with the extrusion blocks pressing against the ring cards;

FIG. 7 is an overall schematic view of a first bushing of the present invention;

FIG. 8 is a schematic view of the squeeze button of the present invention;

FIG. 9 is a schematic view of a conductive compression plate of the present invention;

FIG. 10 is a perspective view of a diamond electrode blade of the present invention;

FIG. 11 is a front schematic view of a diamond electrode blade of the present invention;

description of the drawings: 1. a power line; 2. a handle; 21. pressing the button; 3, PCB board; 4. a button; 51. a first sleeve; 52. a second sleeve; 53. an electrode knife; 531. a cutter head; 532. a third sleeve; 533. a gap; 534. a diamond electrode knife; 6. a clamping structure; 61. an annular card; 62. a compression spring; 63. extruding the block; 64. a first annular groove; 65. a second annular groove; 7. a conductive member; 71. a conductive annular collar; 72. a conductive spring 72; 73. a conductive compression plate; 731. a vent hole; ring 8.LED lamp; 9. a pogo pin.

Detailed Description

The following specific examples are given by way of illustration only and not by way of limitation, and it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made in the examples without inventive faculty, and yet still be protected by the scope of the claims.

The present invention will be described in detail below by way of examples with reference to the accompanying drawings.

As shown in fig. 1 to 11, a low-damage telescopic light source surgical electrotome includes a first sleeve, a second sleeve having a conducting function, and an electrode knife 53, wherein the second sleeve 52 is fixedly connected to the first sleeve 51, a clamping structure 6 is disposed between the electrode knife 53 and the first sleeve 51, the electrode knife 53 is detachably connected to the first sleeve 51 through the clamping structure 6, a conducting member 7 is disposed inside the second sleeve 52 close to the first sleeve 51, the electrode knife 53 penetrates through the first sleeve 1 and is in contact connection with the second sleeve 52 through the conducting member 7, the electrode knife 53 is a diamond-shaped electrode knife 534, the clamping structure 6 includes an annular clamping piece 61, a pressing spring 62, and a pressing block 63, a first annular groove 64 is disposed on an inner side wall of the first sleeve 51 along an axial direction, the annular clamping piece 61 is disposed in the first annular groove 64, the extrusion spring 62 is arranged between the annular clamping plate 61 and the first annular groove 64, the extrusion block 63 is arranged on the annular clamping plate 61 and penetrates through the side wall of the first sleeve 51 to extend to the outer side of the first sleeve 51, the extrusion block 63 and the extrusion spring 62 are arranged oppositely, a plurality of second annular grooves 65 matched with the annular clamping plate 61 are arranged on the outer side wall of the electrode knife 53 in an array manner, the conductive piece 7 comprises a conductive annular retainer ring 71, a conductive spring 72 and a conductive extrusion plate 73, the conductive annular retainer ring 7 is arranged on the inner side wall of the second sleeve 52, the conductive extrusion plate 72 is arranged at the position of the second sleeve 52 close to the first sleeve 51 and is not contacted with the side wall of the second sleeve 52, the conductive spring 71 is arranged between the conductive annular retainer ring 7 and the conductive extrusion plate 72, and the conductive extrusion plate 73 is provided with a plurality of vent holes 731, the diameter of the conductive spring 72 is larger than the inner diameter of the conductive annular retainer 71, and a gap 533 is formed between the third sleeve 532 and the first sleeve 51.

As shown in fig. 3, the electrode knife 53 includes a knife body 531 and a third sleeve 532 sleeved on an outer side wall of the knife body 531, and the second annular groove 65 is opened on an outer side wall of the third sleeve 532.

As shown in fig. 1, fig. 2 and fig. 8, the surgical electric knife with the light source comprises a smoke absorbing pipe, a handle 2 for fixing the smoke absorbing pipe and being controlled by a hand, an upper shell and a lower shell which are divided into the handle 2, a PCB 3, a power line 1, a button 4 and an LED lamp 8 which are arranged on the handle 2 and are used for pressing and controlling the PCB 3, wherein the LED lamp 8 is arranged at the front end of the handle 2 and is electrically connected with the PCB 3, the PCB 3 is connected with the smoke absorbing pipe through a spring needle 9, and an extrusion button 21 which is used for extruding an extrusion block 63 is arranged on the handle 2.

The working principle is as follows: the fume suction pipe is connected with an external vacuum pump, the PCB 3 is always contacted with the fume suction pipe through the spring needle 9, the electrode knife 53 is always contacted with the fume suction pipe through the conductive piece 7, so that the electrified state is ensured, in the operation, an operator can illuminate through the button 4, cut, coagulation operation treatment is carried out, the vacuum pump is started, operation is carried out, generated operation fume enters the first sleeve 533 through the gap 533 and then enters the second sleeve 52 and is then discharged, when the electrode knife 53 needs to be replaced, the button 21 on the handle 2 is pressed, the extrusion block 63 compresses the extrusion spring 62, so that the annular clamping piece 61 is driven to move, the circle center of the annular clamping piece 61 is close to the circle center of the first annular groove 64, when the same circle center is located, the annular clamping piece 61 is hidden in the first annular groove 64, so that the electrode knife 53 can penetrate through the first sleeve 51 until the electrode knife 53 is contacted with the conductive extrusion plate on the conductive piece 7 73, release button 21, thereby extrusion spring 62 drives annular card 61 return, go into annular card 61 card to second annular groove 65 in, accomplish dismantling between electrode sword 53 and the first sleeve 51 and be connected, adopt this kind of mode, it is convenient to install, be convenient for change electrode sword 53, the complexity of changing the tool bit has also been simplified simultaneously, make electrode sword after the installation can be firm be connected with the first sleeve simultaneously, prevent that electrode aversion from bringing very big potential safety hazard for the operation in the operation, when electrode sword 53 needs flexible adjustment, only need squeeze electrode sword 53 to the direction of guide extrusion board 73 or extract to the outside, make annular card 61 card go into different second annular groove 65, make electrode sword can possess the function of certain depth of adjustment, can be applicable to the wound of the different degree of depth, use more hommization.

Claims

1. The utility model provides a low flexible light source surgical electrotome of damaging, characterized in that, including first sleeve pipe (51), second sleeve pipe (52), electrode sword (53) that have the function of conducting electricity, second sleeve pipe (52) with first sleeve pipe (51) fixed connection, electrode sword (53) with be equipped with joint structure (6) between first sleeve pipe (51), electrode sword (53) with first sleeve pipe (51) can be dismantled through joint structure (6) and be connected, second sleeve pipe (52) are close to the inside of first sleeve pipe (51) is equipped with electrically conductive piece (7), electrode sword (53) run through first sleeve pipe (1) through electrically conductive piece (7) with second sleeve pipe (52) contact is connected, electrode sword (53) are rhombus electrode sword (534).

2. The scalpel with the low damage and the telescopic light source as claimed in claim 1, wherein the clamping structure (6) comprises an annular clamping piece (61), an extrusion spring (62) and an extrusion block (63), a first annular groove (64) is formed in the inner side wall of the first sleeve (51) along the axial direction, the annular clamping piece (61) is arranged in the first annular groove (64), the extrusion spring (62) is arranged between the annular clamping piece (61) and the first annular groove (64), the extrusion block (63) is arranged on the annular clamping piece (61) and penetrates through the side wall of the first sleeve (51) to extend to the outer side of the first sleeve (51), and the extrusion block (63) and the extrusion spring (62) are arranged oppositely.

3. The low-damage telescopic light source surgical electrotome according to claim 2, wherein a plurality of second annular grooves (65) matched with the annular clamping pieces (61) are formed on the outer side wall of the electrode knife (53) in an array manner.

4. The low-damage telescopic light source surgical electrotome according to claim 3, wherein the electrode knife (53) comprises a knife body (531) and a third sleeve (532) sleeved on the outer side wall of the knife body (531), and the outer side wall of the third sleeve (532) is provided with the second annular groove (65).

5. The low-damage telescopic light source surgical electrotome according to claim 1, wherein the conductive member (7) comprises a conductive annular retaining ring (71), a conductive spring (72) and a conductive pressing plate (73), the conductive annular retaining ring (71) is arranged on the inner side wall of the second sleeve (52), the conductive pressing plate (73) is arranged at the position of the second sleeve (52) close to the first sleeve (51) and is not in contact with the side wall of the second sleeve (52), and the conductive spring (72) is arranged between the conductive annular retaining ring (71) and the conductive pressing plate (73).

6. The low-damage telescopic light source surgical electrotome according to claim 5, wherein the conductive pressing plate (73) is provided with a plurality of vent holes (731).

7. The low damage telescopic light source surgical electrotome according to claim 5, characterized in that the diameter of the conductive spring (71) is larger than the inner diameter of the conductive annular collar (7).

8. The electrosurgical knife of claim 5, wherein a gap (533) is formed between the third cannula (532) and the first cannula (51).

9. The low-damage telescopic light source surgical electrotome according to any one of claims 1 to 8, further comprising a handle (2) which is used for fixing the first sleeve (51) and the second sleeve (52) and can be controlled by hands, a PCB (3), a button (4) which is arranged on the handle (2) and is used for clicking and operating the PCB (3), and an LED lamp (8), wherein the LED lamp (8) is arranged at the front end of the handle (2) and is electrically connected with the PCB (3), and the PCB (3) is connected with the first sleeve (51) and the second sleeve (52) through a pogo pin (9).

10. The low-damage telescopic light source surgical electrotome according to claim 9, wherein the handle (2) is provided with a squeezing button (21) for facilitating squeezing of the squeezing block (63).