CN217040278U - Low-damage telescopic light source knife - Google Patents

Abstract

The utility model discloses a low-damage telescopic light source knife, 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, 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, the clamping structure comprises an annular clamping plate, an extrusion spring and an extrusion block, a first annular groove is arranged on the inner side wall of the first sleeve along the axial direction, the annular clamping plate is arranged in the first annular groove, the extrusion spring is arranged between the annular clamping plate and the first annular groove, the extrusion block is arranged on the annular clamping plate and penetrates through the side wall of the first sleeve to extend to the outer side of the first sleeve, the extrusion block is arranged opposite to the extrusion spring, a plurality of second annular grooves matched with the annular clamping plate are arranged on the outer side wall of the electrode knife in an array manner, thereby being convenient for replacing different kinds of electrode knives.

Description

Low-damage telescopic light source knife

Technical Field

The utility model relates to a preparation field of medical instrument auxiliary device, concretely relates to low flexible light source sword of damage.

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 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 fast operation of the operation and causing the waste of the electric scalpel, although the prior electric scalpel with a replaceable knife head is provided, for example, the electric scalpel in the operation with a replaceable electrode knife body in the patent CN202110850528.8 can improve the resistance in sliding by using the elasticity of the rubber ring and fix the moved hollow electrode rod, the electrode after expansion and contraction is fixed, but the electrode can not 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.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art and providing a low damage telescopic light source knife.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a low-damage telescopic light source knife comprises a first sleeve, a second sleeve with a conductive function and an electrode knife, 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 a clamping structure, the clamping structure comprises an annular clamping piece, an extrusion spring and an extrusion block, the inner side wall of the first sleeve is provided with a first annular groove along the axial direction, the annular clamping piece is arranged in the first annular groove, the extrusion spring is arranged between the annular clamping piece and the first annular groove, the extrusion block is arranged on the annular clamping piece and penetrates through the side wall of the first sleeve to extend to the outer side of the first sleeve, the extrusion block with the extrusion spring sets up relatively, a plurality of and annular card second annular groove of mutually supporting are seted up to the array on the lateral wall of electrode sword.

The electrode knife is detachably fixed on the first sleeve through the clamping structure, so that different types of electrode knives are convenient to replace, medical workers can use different knife heads according to specific conditions of patients, the replacement convenience is guaranteed while the cost is saved, the practicability and the reliability are improved, meanwhile, the electrode knife is communicated with the second sleeve with the conductive function through the conductive piece, the second sleeve can be used as a smoke suction pipe and can be used as a conductive piece, the operation electrotome is not required to be provided with other conductive pieces, the assembly steps are reduced, and the ventilation stability is guaranteed while the energization stability is guaranteed. The circle centers of the annular clamping piece and the first annular groove are on the same straight line but not at the same circle center, the extrusion spring is compressed by the extrusion of the extrusion block, thereby driving the annular card to move, enabling the circle center of the annular card to be close to the circle center of the first annular groove, when the annular card is positioned at the same circle center, the annular card 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 pressing block is stopped being pressed, thereby the extrusion spring drives the annular clamping piece to return to clamp the annular clamping piece into the second annular groove to complete the detachable connection between the electrode cutter and the first sleeve, the adoption of the mode has convenient installation and simplifies the complexity of replacing the cutter head, meanwhile, the installed electrode knife can be firmly connected with the first sleeve, and great potential safety hazards caused by electrode displacement in the operation are prevented.

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, a conductive member is arranged inside the second sleeve close to the first sleeve, and the electrode knife penetrates through the first sleeve and is in contact connection with the second sleeve through the conductive member.

Preferably, the conductive component includes a conductive annular check ring, a conductive spring, and a conductive squeeze plate, the conductive annular check ring is disposed on the inner sidewall of the second sleeve, the conductive squeeze 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 check ring and the conductive squeeze plate, the conductive annular check ring, the conductive spring, and the conductive squeeze plate are all made of conductive materials, the conductive materials can be copper materials, and then the surface of the copper materials is subjected to anti-oxidation treatment, so that the service life can be prolonged, the contact connection between the electrode knife and the squeeze plate is completed by squeezing the conductive squeeze plate by the knife body of the electrode knife, the conductive function is completed, the contact connection between the electrode knife and the conductive squeeze plate is surface-to-surface contact connection, so that the contact area is increased, compared with a point contact manner adopted between the electrode knife head and the conductive strip 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 ventilation holes, and the ventilation holes, the gaps of the conductive annular retainer rings and the gaps of the conductive springs ensure the hollow design inside the second sleeve pipe, so that the second sleeve pipe has the function of conducting and smoking.

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 low-damage telescopic light source knife further comprises a handle, a PCB, a button and an LED lamp, wherein the handle is used for fixing the smoke suction pipe and can be controlled by a hand, the button and the LED lamp are arranged on the handle and used for clicking and controlling the PCB, the LED lamp is arranged at the front end of the handle and is electrically connected with the PCB, the PCB is connected with the smoke suction pipe through a spring pin, the spring pin is in the prior art, the spring pin is not described in the scheme, the PCB is always kept in contact with the second sleeve through the spring pin, the axis of the projection light of the LED lamp is parallel to the axis of the knife head, the knife head moves to illuminate, 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.

Preferably, the electrode knife can be a diamond-shaped electrode knife, the edge of the electrode is sharp, and the middle of the electrode knife is raised. The sharp edge is more favorable for gathering the electric energy to the edge, reduces the dispersion of energy as far as possible, just can reduce the waste of energy in the work, only need apply than the energy of conventional electrode still can realize same operation effect, simultaneously, because not too much energy is to spread around, then can reduce the heat injury to adjacent tissue in the course of the work, prevent accidental injury good tissue and nerve, more favorable meticulous operation and patient postoperative to resume, improve operation efficiency. The middle bulge of the electrode is beneficial to maintaining the integral strength of the electrode and preventing the bending deformation caused by stress in the working process.

To sum up, the utility model has the advantages that:

1. the utility model discloses a joint structure fixes electrode sword detachable on the first sleeve pipe, be convenient for change different kinds of electrode sword, medical personnel can use different tool bits according to the concrete condition of patient, guarantee the convenience of change when practicing thrift the cost, improve practicality and reliability, the electrode switches on through electrically conductive piece and second sleeve pipe that has the electric conduction function simultaneously, can regard second sleeve pipe as smoking pipe to use, can regard as the conducting strip to use again, make the operation electrotome need not to install other conducting strips, reduce the step of equipment, can guarantee the stability of circular telegram again when induced drafting;

2. the utility model discloses an extrusion of extrusion piece, compress the extrusion spring, thereby drive annular card and remove, make the centre of a circle of annular card be close to the centre of a circle of first annular groove, when being in same centre of a circle, annular card covers in first annular groove, thereby make the electrode sword can run through first sleeve pipe until the electrode sword contacts to the electrically conductive piece, stop pressing the extrusion piece, thereby the extrusion spring drives annular card return and blocks annular card into to the second annular groove, can dismantle the connection between electrode sword and the first sleeve pipe, adopt this kind of mode, the installation is convenient, the complexity of changing the tool bit has been simplified, simultaneously make the electrode sword after the installation can be firmly connected with first sleeve pipe, prevent that the electrode aversion from bringing very big potential safety hazard for the operation in the operation;

3. the utility model completes the contact connection between the electrode knife and the extrusion plate by the knife body of the electrode knife to extrude the conductive extrusion plate, and completes the conductive function, and the electrode knife and the conductive extrusion plate are connected through surface-to-surface contact, so that the contact area is enlarged, and compared with the mode of point-to-point contact between the electrode knife head and the conductive plate adopted on the market, the stability of electrification is higher;

4. the utility model discloses a conductive spring and second annular groove, when the electrode sword needs 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 for the electrode sword can possess the function of certain regulation length, can be applicable to the wound of the different degree of depth, uses more hommization.

Drawings

FIG. 1 is a schematic view of the present invention showing a disassembled scalpel with a light source;

FIG. 2 is a schematic view of the whole surgical electric 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 sectional view of the electrode knife of the present invention after being snapped into the first sleeve;

FIG. 5 is a longitudinal view of the extrusion block pressing the annular clamping piece according to the present invention;

FIG. 6 is a schematic view of the pressing block pressing the annular card;

fig. 7 is an overall schematic view of the first sleeve 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 the 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; 73. a conductive compression plate; 731. a vent hole; ring 8.LED lamp; 9. a pogo pin.

Detailed Description

The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

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

As shown in fig. 1 to 11, a low-damage telescopic light source knife includes a first sleeve, a second sleeve having a conducting function, and an electrode knife 53, where the electrode knife 53 may be a diamond-shaped electrode knife 534, 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 51 and is in contact connection with the second sleeve 52 through the conducting member 7, 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 oppositely arranged, 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 71 is arranged on the inner side wall of the second sleeve 52, the conductive extrusion plate 73 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 72 is arranged between the conductive annular retainer ring 71 and the conductive extrusion plate 73, 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 collar 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 that is 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 51 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, clip annular card 61 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 to take place that the electrode shifts and bring very big potential safety hazard for the operation in the operation, when electrode sword 53 needs the flexible regulation, only need squeeze electrode sword 53 to the direction of electric extrusion board 73 or extract to the outside, make annular card 61 card clip different second annular groove 65, make the electrode sword can possess the function of certain depth of regulation, can be applicable to the wound of the different degree of depth, use more hommization.

Claims (9)

1. The utility model provides a low flexible light source sword that damages, 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, joint structure (6) are including annular card (61), extrude spring (62), extrude piece (63), first annular groove (64) have been seted up along axial direction to the inside wall of first sleeve pipe (51), annular card (61) are established first in first annular groove (64), extrude spring (62) and establish annular card (61) with between 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.

2. The telescopic light source knife with low damage according to claim 1, wherein the outer side wall of the electrode knife (53) is provided with a plurality of second annular grooves (65) which are matched with the annular clamping pieces (61) in an array manner.

3. The low-damage telescopic light source knife according to claim 2, 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 second annular groove (65) is formed on the outer side wall of the third sleeve (532).

4. The low damage telescopic light source knife of claim 3, wherein a gap (533) is formed between the third sleeve (532) and the first sleeve (51).

5. The low damage telescopic light source knife according to claim 4, wherein the second sleeve (52) is provided with a conductive member (7) near the inside of the first sleeve (51), and the electrode knife (53) penetrates through the first sleeve (51) and is connected with the second sleeve (52) in a contact manner through the conductive member (7).

6. The low-damage telescopic light source knife according to claim 5, 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 disposed on the inner side wall of the second sleeve (52), the conductive pressing plate (73) is disposed at a 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 disposed between the conductive annular retaining ring (71) and the conductive pressing plate (73).

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

8. The low damage telescopic light source knife according to claim 6, characterized in that the diameter of said conductive spring (72) is larger than the inner diameter of said conductive annular collar (71).

9. The low damage telescopic light source knife according to any one of claims 1 to 8, wherein the electrode knife (53) is a diamond-shaped electrode knife (534).

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