CN217488831U - Single-hand operation bipolar radio frequency surgical knife head - Google Patents

Abstract

The utility model relates to the technical field of medical instruments, in particular to a single-hand operation bipolar radio frequency surgical knife head which is provided with a gun type handle, the gun type handle comprises a gun rod part and a handle part, the rear end of the gun rod part is connected with the handle part as a whole, the side surface of the rear side of the gun rod part is provided with a slide hole, a slide block which slides back and forth is arranged in the slide hole, the gun rod part is provided with an inner sleeve, the inner sleeve is fixed in the gun rod and extends out of the gun head, the inner sleeve extending out of the gun head is connected with a bending component, the end part of the bending component is connected with a knife head, the outer sleeve of the bending component, the knife head and the outer sleeve is sleeved with an outer sleeve, the outer sleeve extends into the inner side of the gun rod part and is connected with the slide block outside the gun rod part, the knife head is connected with a cable, the cable passes through the bending component and is fixed behind a rotary wrench arranged at the rear side of the gun rod part and is connected with the cable, the rotary wrench drives the bending component to rotate through a driving wire, has the advantages of simple structure, convenient use, capability of controlling the extension of the outer sleeve and the bending of the electrode tip simultaneously by one hand, and the like.

Description

Single-hand operation bipolar radio frequency surgical knife head

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a simple structure, convenient to use, one hand can the simultaneous control outer tube stretch out and draw back and crooked one-hand operation bipolar radio frequency operation tool bit of electrode tip.

Background

As is well known, the minimally invasive technique has been widely applied to the fields of spinal minimally invasive surgery, transforaminal endoscopic surgery, laparoscopic surgery and the like, and is contracted and accepted by vast doctors and patients due to the advantages of small trauma, light pain, small postoperative scar, short hospitalization time, high cure rate, capability of recovering normal functions in the early days and the like.

The bipolar radio frequency surgical knife head is a technology applied to the field of minimally invasive technology or plastic surgery, and mainly has the functions of stopping bleeding, coagulating, shrinking, burning and peeling by guiding current or radio waves generated by a radio frequency host machine to target soft tissues through the bipolar radio frequency surgical knife head.

At present, an existing bipolar radio-frequency scalpel is generally finished by two persons, one person holds a hole mirror, the other person holds the scalpel and observes a screen of the hole mirror to achieve operation, however, the position of a hole path moved by the other person cannot completely meet the requirements of an operator, operation time is prolonged, risks are increased, and the other person also has a scalpel operated by one hand.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and providing a one-hand operation bipolar radio frequency surgical knife head which has simple structure, convenient use and can simultaneously control the extension of an outer sleeve and the bending of an electrode tip by one hand.

The utility model provides a technical scheme that its technical problem adopted is:

a single-hand operated bipolar radio frequency surgical knife head is provided with a gun type handle, the gun type handle comprises a gun rod part and a handle part, the rear end of the gun rod part is connected with the handle part integrally, the single-hand operated bipolar radio frequency surgical knife head is characterized in that a sliding hole is arranged on the side surface of the rear side of the gun rod part, a sliding block which slides back and forth is arranged in the sliding hole, an inner sleeve is arranged on the gun rod part, the inner sleeve is fixed in the gun rod and extends out of the gun head, the inner sleeve extending out of the gun head is connected with a bending component, the end part of the bending component is connected with a knife head, an outer sleeve is sleeved on the outer sides of the bending component, the knife head and the inner sleeve, the outer sleeve extends into the inner side of the gun rod part and is connected with the sliding block on the outer side of the gun rod part, the outer sleeve is driven to move back and forth through the sliding block, the knife head is connected with a cable, the cable penetrates through the bending component and is fixed on a rotary wrench arranged on the rear side of the gun rod part and then connected with a cable, the handle part and is connected with an external radio frequency motor, the rotary wrench drives the bending component to rotate through the driving wire, the bending component is driven to bend by pushing the rotary wrench upwards and downwards, and then the forefinger and the thumb of a single hand push the sliding block and the rotary wrench to realize single-hand operation.

The utility model discloses a crooked subassembly establish to have a plurality of crooked piece to establish ties and through the structure that the cable is connected, crooked piece's block be the front end and be equipped with the structure that the arc is protruding, the rear end is equipped with the arc recess, the degree of depth of arc recess is less than the height of arc arch, crooked piece's upper and lower bilateral symmetry be equipped with the through-hole, adjacent crooked piece is inserted the arc recess respectively through the arc arch and is established ties, crooked piece is established ties the back front end and is connected the tool bit, crooked piece is established ties the back end and is connected interior sleeve pipe, the drive wire divide into last drive wire and lower drive wire, the front end of going up drive wire and lower drive wire is connected with the tool bit, the rear end of going up drive wire and lower drive wire passes the through-hole of the upper and lower both sides of crooked piece respectively and is connected with the rotary wrench, the top of the rotation axis of going up around rotary wrench extend to the below and rotation axis fixed connection after, the lower driving wire extends to the lower part of the rotating shaft of the rotating wrench and is fixedly connected with the rotating shaft, and the rotating wrench is pushed towards the upper part or the lower part to drive the bending assembly to bend.

The cable divide into cable and cable down, the tool bit has the two poles of the earth, the front end of going up the cable passes interior sleeve pipe, crooked piece upside through-hole after link to each other with a utmost point of tool bit, the front end of cable is connected with another utmost point of tool bit after passing interior sleeve pipe, crooked piece downside through-hole down, goes up the cable and links to each other with outside radio frequency motor through the cable respectively with cable down.

The cable establish to the drive wire, the cable divide into cable and cable down, the tool bit has the two poles of the earth, the front end of going up the cable passes interior sleeve pipe, link to each other with a utmost point of tool bit behind the crooked piece upside through-hole, the front end of cable down passes interior sleeve pipe, be connected with another utmost point of tool bit behind the crooked piece downside through-hole, the rear end of going up the cable extends below and the rotation axis fixed connection of rotation axis after walking around the top of rotation axis of rotary wrench, the rear end of cable down extends below and the rotation axis fixed connection of the rotation axis of rotary wrench, it links to each other with outside radio frequency motor through the cable respectively to go up cable and cable down.

Go up drive wire and drive wire down on the rotation axis of rotatory spanner through first fix with screw respectively.

Rotatory spanner's rotation axis establish to disc rotation axis, disc rotation axis's outside cover has wrench housing, disc rotation axis and wrench housing fixed connection, disc rotation axis rotates with rifle rod portion to be connected.

Go up cable and cable down on the rotation axis of rotary spanner through first fix with screw respectively, interior sleeve pipe inside the barral of a gun through the second fix with screw.

Outer tube outside cover in stock portion have a silica gel circle, the silica gel circle is fixed on stock portion, guarantees through the damping effect between silica gel circle and the outer tube that the outer tube slides steadily.

The slide opening establish the left and right sides face in stock portion rear side, the rear end of outer tube be equipped with the cover and have a drive seat, the left and right sides of driving the seat is equipped with the drive post respectively, the slider on be equipped with the jack, the slider is inserted through the jack and is realized being connected of slider and drive post on the drive post.

Slider and the slide fixed connection who shelters from the slide opening, the slider around the upper and lower bilateral symmetry of the slide of both sides be fixed with the stopper, the stopper be the L type, the one end of the stopper of L type is connected with the slide, the other end card of L type stopper slides around limiting through L type stopper in the bar draw-in groove that is equipped with in the barral of a gun portion, the both ends of slide crooked towards barral of a gun portion respectively, make slide and barral of a gun portion be connected the back and press on the outer wall of barral of a gun portion, the crooked slide both ends are that slide slip in-process also produces the damping effect, guarantee the stability that the slider removed.

The utility model has the advantages of simple structure, convenient use, single-hand simultaneous control of the extension of the outer sleeve and the bending of the electrode tip, and the like due to the adoption of the structure.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 1.

Fig. 4 is a partial enlarged view of the front side of the outer sleeve of fig. 3.

Fig. 5 is a schematic view of the structure of the bending block of fig. 4.

Fig. 6 is an enlarged partial view of the drive socket portion of fig. 3.

Fig. 7 is a schematic view of the structure of the slide board.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in the attached drawing, the single-hand operated bipolar radio frequency surgical knife head is provided with a gun type handle, the gun type handle comprises a gun rod part 1 and a handle part 2, the rear end of the gun rod part 1 is integrally connected with the handle part 2, the single-hand operated bipolar radio frequency surgical knife head is characterized in that a sliding hole 19 is formed in the side face of the rear side of the gun rod part 1, a sliding block 3 which slides back and forth is arranged in the sliding hole 19, an inner sleeve 4 is arranged on the gun rod part 1, the inner sleeve 4 is fixed in the gun rod and extends out of the gun head, the inner sleeve 4 extending out of the gun head is connected with a bending assembly, the end part of the bending assembly is connected with a knife head 5, an outer sleeve 6 is sleeved outside the bending assembly, the outer sleeve 6 extends into the gun rod part 1 and is connected with a sliding block 3 outside the gun rod part 1, the outer sleeve 6 is driven by the sliding block 3 to move back and forth, the knife head 5 is connected with a cable, the cable rod part passes through the bending assembly and is fixed on a rotary wrench 7 arranged on the rear side of the gun rod part 1 and then connected with a cable 18, cable 18 passes handle portion 2 and is connected with outside radio frequency motor, rotatory spanner 7 drive the crooked subassembly of drive through the drive wire and rotate, promote with the crooked of driving crooked subassembly realization downwards through the orientation top of rotatory spanner 7, and then single-hand forefinger promotes slider 3, thumb promotion rotatory spanner 7 realization one-hand operation.

Further, the bending assembly is provided with a structure that a plurality of bending blocks 8 are connected in series and connected through cables, the block bodies of the bending blocks 8 are provided with arc-shaped bulges 9 at the front ends and arc-shaped grooves 10 at the rear ends, the depth of each arc-shaped groove 10 is smaller than the height of each arc-shaped bulge 9, through holes 11 are symmetrically arranged at the upper side and the lower side of each bending block 8, the adjacent bending blocks 8 are respectively inserted into the arc-shaped grooves 10 through the arc-shaped bulges 9 to be connected in series, the front ends of the serially connected bending blocks 8 are connected with a tool bit 5, the rear ends of the serially connected bending blocks 8 are connected with the tool bit 5, the rear ends of the serially connected bending blocks 8 are connected with an inner sleeve 4, the driving wires are divided into an upper driving wire and a lower driving wire, the front ends of the upper driving wire and the lower driving wire are connected with the tool bit 5, the rear ends of the upper driving wire and the lower driving wire respectively pass through the through holes 11 at the upper side and the lower side of the bending blocks 8 to be connected with the rotary wrench 7, the upper driving wire extends to the lower side of the rotary shaft 12 of the rotary wrench 7 to be fixedly connected with the rotary shaft 12, the lower driving wire extends to the lower part of the rotating shaft 12 of the rotating wrench 7 and is fixedly connected with the rotating shaft 12, and the rotating wrench 7 is pushed upwards or downwards to drive the bending component to bend.

Further, the cable divide into cable 13 and cable 14 down, tool bit 5 has two poles of the earth, go up the front end of cable 13 and pass interior sleeve pipe 4, bend 8 upside through-hole 11 after and be connected with one utmost point of tool bit 5, the front end of cable 14 down passes interior sleeve pipe 4, bend 8 downside through-hole 11 after and is connected with the other utmost point of tool bit 5, go up cable 13 and cable 14 down and link to each other with outside radio frequency motor through cable 18 respectively.

Further, the cable is set as a driving wire, the cable is divided into an upper cable 13 and a lower cable 14, the tool bit 5 has two poles, the front end of the upper cable 13 passes through the inner sleeve 4 and is connected with one pole of the tool bit 5 after passing through the through hole 11 on the upper side of the bending block 8, the front end of the lower cable 14 passes through the inner sleeve 4 and is connected with the other pole of the tool bit 5 after passing through the through hole 11 on the lower side of the bending block 8, the rear end of the upper cable 13 bypasses the upper part of the rotating shaft 12 of the rotary wrench 7 and then extends to the lower part of the rotating shaft 12 to be fixedly connected with the rotating shaft 12, the rear end of the lower cable 14 extends to the lower part of the rotating shaft 12 of the rotary wrench 7 and is fixedly connected with the rotating shaft 12, and the upper cable 13 and the lower cable 14 are respectively connected with an external radio frequency motor through a cable 18.

Further, the upper driving wire and the lower driving wire are respectively fixed on the rotating shaft 12 of the rotary wrench 7 through a first screw 15, and the driving wire is pressed and connected with the driving wire by the first screw passing through the pressing plate.

Further, the rotary shaft 12 of the rotary wrench 7 is a disk-shaped rotary shaft 12, a wrench case 20 is fitted around the disk-shaped rotary shaft 12, the disk-shaped rotary shaft 12 and the wrench case 20 are fixedly connected, and the disk-shaped rotary shaft 12 is rotatably connected to the gun barrel portion 1.

Further, the upper cable 13 and the lower cable 14 are respectively fixed on the rotating shaft 12 of the rotating wrench 7 through first screws 15, the upper cable and the lower cable penetrate through a pressing plate through the first screws to be in compression joint with the driving wire, the inner sleeve 4 is fixed inside the gun rod through second screws 16, and the inner sleeve penetrates through the pressing plate through the second screws to be in compression joint with the inner sleeve, so that the inner sleeve is fixed inside the gun rod.

Further, the outer side of the outer sleeve 6 in the gun rod part 1 is sleeved with a silica gel ring 17, the silica gel ring 17 is fixed on the gun rod part 1, and the outer sleeve 6 is ensured to stably slide through the damping effect between the silica gel ring 17 and the outer sleeve 6.

Further, the slide holes 19 are arranged on the left side surface and the right side surface of the rear side of the gun rod part 1, the rear end of the outer sleeve 6 is provided with a driving seat 21 in a sleeved mode, the left side and the right side of the driving seat 21 are respectively provided with a driving column 22, the sliding block 3 is provided with an insertion hole, and the sliding block 3 is inserted into the driving column 22 through the insertion hole to realize connection of the sliding block 3 and the driving column 22.

Further, slider 3 and slide 23 fixed connection who shelters from slide 19, the upper and lower bilateral symmetry of slide 23 of both sides around slider 3 fixed stopper 24, stopper 24 be the L type, the one end of the stopper 24 of L type is connected with slide 23, the other end card of L type stopper 24 is in the bar draw-in groove that is equipped with in the rifle bar portion 1, slides around restricting through L type stopper 24, slide 23 both ends respectively towards rifle bar portion 1 crooked, make slide 23 be connected with rifle bar portion 1 and back press on the outer wall of rifle bar portion 1, the crooked slide 23 both ends are that slide 23 slides the in-process and also produce the damping effect, guarantee the stability that slider 3 removed.

The utility model discloses when electrode operation, the doctor can hold the mirror with one hand, and the handle portion 2 of the bipolar radio frequency scalpel of this patent is held to another hand, at first pushes slide 23 (being slider 3) to the farthest end with the forefinger, slide 23 (being slider 3) can push outer tube 6 to the farthest end, crooked piece 8 is in outer tube 6 inside completely this moment, make things convenient for the apparatus to reach the affected part along the passageway, reach the position after, slide 23 (being slider 3) backward with the forefinger, then the tool bit 5 and the crooked piece 8 of apparatus distal end can stretch out outer tube 6, tool bit 5 and crooked piece 8 expose longer, then its flexible radian is big more, working range is also big more, promote rotatory spanner 7 with the thumb, rotatory spanner 7 can transmit power to the cable, the cable transmits power to tool bit 5 again, crooked piece 8 can be because of the atress, one side that receives the pulling force cable is crooked, similarly, if promote rotatory spanner 7 to one side in addition with the thumb, then the cable atress of one side in addition, tool bit 5 can be to another tension cable lateral bending, the user also can adjust the flexible of outer tube 6 simultaneously when adjusting bending angle, expose different length from control tool bit 5, realize the crooked of the different radians of tool bit 5, in order to satisfy bigger working range, make things convenient for the doctor to stanch to the affected part of different positions, the blood coagulation, shrink, burn, the work of peeling off, and then realized the function of one-hand operation, the utility model discloses owing to adopt above-mentioned structure, have simple structure, convenient to use, one-hand can control advantages such as outer tube 6 is flexible and the electrode tip is crooked simultaneously.

Claims (10)

1. A single-hand-operated bipolar radio-frequency surgical knife head is provided with a gun-type handle, the gun-type handle comprises a gun rod part and a handle part, the rear end of the gun rod part is connected with the handle part integrally, and the single-hand-operated bipolar radio-frequency surgical knife head is characterized in that a sliding hole is formed in the side surface of the rear side of the gun rod part, a sliding block which slides back and forth is arranged in the sliding hole, an inner sleeve is arranged on the gun rod part, the inner sleeve is fixed in the gun rod and extends out of the gun head, the inner sleeve extending out of the gun head is connected with a bending assembly, the end part of the bending assembly is connected with a knife head, an outer sleeve is sleeved on the outer sides of the bending assembly, the knife head and the inner sleeve, the outer sleeve extends into the inner side of the gun rod part and is connected with the sliding block on the outer side of the gun rod part, the outer sleeve is driven to move back and forth through the sliding block, the knife head is connected with a cable, the cable passes through the handle part and is connected with an external radio-frequency motor, the rotary wrench drives the bending component to rotate through the driving wire, the bending component is driven to bend by pushing the rotary wrench upwards and downwards, and then the forefinger and the thumb of a single hand push the sliding block and the rotary wrench to realize single-hand operation.

2. The tool bit for single-hand operation bipolar radio frequency surgery according to claim 1, wherein the bending assembly is configured to have a structure in which a plurality of bending blocks are connected in series and connected by cables, the block of the bending block is configured to have an arc protrusion at the front end and an arc groove at the rear end, the depth of the arc groove is smaller than the height of the arc protrusion, the upper and lower sides of the bending block are symmetrically provided with through holes, adjacent bending blocks are inserted into the arc groove through the arc protrusion to be connected in series, the front end of the bending block is connected with the tool bit after being connected in series, the rear end of the bending block after being connected in series is connected with an inner sleeve, the driving wire is divided into an upper driving wire and a lower driving wire, the front ends of the upper driving wire and the lower driving wire are connected with the tool bit, the rear ends of the upper driving wire and the lower driving wire respectively pass through the through holes at the upper and lower sides of the bending block to be connected with the rotary wrench, the upper driving wire passes over the rotary wrench and then extends to the lower part of the rotary shaft to be fixedly connected with the rotary shaft, the lower driving wire extends to the lower part of the rotating shaft of the rotating wrench and is fixedly connected with the rotating shaft, and the rotating wrench is pushed towards the upper part or the lower part to drive the bending assembly to bend.

3. The single-hand operated bipolar radio frequency surgical knife head according to claim 1, wherein the cable is divided into an upper cable and a lower cable, the knife head has two poles, the front end of the upper cable passes through the inner sleeve and the through hole at the upper side of the bending block and then is connected with one pole of the knife head, the front end of the lower cable passes through the inner sleeve and the through hole at the lower side of the bending block and then is connected with the other pole of the knife head, and the upper cable and the lower cable are respectively connected with an external radio frequency motor through cables.

4. The tool bit of claim 1, wherein the cable is a drive wire, the cable is divided into an upper cable and a lower cable, the tool bit has two poles, the front end of the upper cable passes through the inner sleeve and the through hole on the upper side of the bending block and then is connected with one pole of the tool bit, the front end of the lower cable passes through the inner sleeve and the through hole on the lower side of the bending block and then is connected with the other pole of the tool bit, the rear end of the upper cable bypasses the upper part of the rotating shaft of the rotary wrench and then extends to the lower part of the rotating shaft and is fixedly connected with the rotating shaft, the rear end of the lower cable extends to the lower part of the rotating shaft of the rotary wrench and is fixedly connected with the rotating shaft, and the upper cable and the lower cable are respectively connected with an external radio frequency motor through cables.

5. The tool bit of claim 2, wherein the upper drive wire and the lower drive wire are fixed to the shaft of the rotary wrench via a first screw.

6. The tool bit for one-handed operation and bipolar radio frequency surgery according to claim 1 or 4, wherein the rotating shaft of the rotating wrench is a disk rotating shaft, a wrench housing is sleeved outside the disk rotating shaft, the disk rotating shaft is fixedly connected with the wrench housing, and the disk rotating shaft is rotatably connected with the gun rod portion.

7. The single-handed bipolar radio frequency surgical blade of claim 3 or 4, wherein said upper cable and said lower cable are fixed to a rotating shaft of said rotary wrench by a first screw, and said inner sleeve is fixed to the inside of said gun shaft by a second screw.

8. The scalpel head of claim 1, wherein the outer sleeve of the shaft portion is covered with a silicone ring, the silicone ring is fixed to the shaft portion, and the outer sleeve is guaranteed to slide stably under the damping effect between the silicone ring and the outer sleeve.

9. The single-hand operated bipolar radio frequency surgical knife head according to claim 1, wherein the slide holes are formed in the left and right side surfaces of the rear side of the gun rod portion, the rear end of the outer sleeve is provided with a driving seat, the left and right sides of the driving seat are respectively provided with a driving post, the slide block is provided with an insertion hole, and the slide block is inserted into the driving post through the insertion hole to realize connection between the slide block and the driving post.

10. The single-hand operated bipolar radio frequency surgical knife head according to claim 9, wherein the slide block is fixedly connected with a slide plate for shielding the slide hole, the slide plate on the front and rear sides of the slide block is symmetrically fixed with a limiting block at the upper and lower sides thereof, the limiting block is L-shaped, one end of the L-shaped limiting block is connected with the slide plate, the other end of the L-shaped limiting block is clamped in a bar-shaped clamping groove formed in the gun rod portion and is limited by the L-shaped limiting block to slide back and forth, and the two ends of the slide plate are respectively bent towards the gun rod portion, so that the slide plate is connected with the gun rod portion and then pressed on the outer wall of the gun rod portion.

Images