CN215273148U

CN215273148U - Ultrasonic scalpel handle and ultrasonic scalpel

Info

Publication number: CN215273148U
Application number: CN202121451124.3U
Authority: CN
Inventors: 张军
Original assignee: Ansukang Medical Suzhou Co ltd
Current assignee: Ansukang Medical Suzhou Co ltd
Priority date: 2021-03-03
Filing date: 2021-06-28
Publication date: 2021-12-24
Anticipated expiration: 2031-06-28
Also published as: CN215273147U; CN113349889A; CN113349889B

Abstract

The utility model discloses an supersound scalpel handle and supersound scalpel, wherein supersound scalpel handle includes handle shell and transducer subassembly, and transducer subassembly includes transducer casing and transducer, and sets up the electricity board at transducer casing rear portion connects and is equipped with the conductive part on the electricity board, the transducer with electricity is connected between the conductive part, the handle shell accept still to be provided with elasticity electrically conductive piece in the chamber, elasticity electrically conductive piece supports forward and leans on the rear end face of electricity board the transducer subassembly is relative the handle shell is around self axial lead pivoted in-process, elasticity electrically conductive piece all the time with the conductive part contacts and keeps the electricity to be connected. The ultrasonic scalpel handle is convenient to arrange the power line on the ultrasonic scalpel handle, and a series of problems caused by the fact that the power line is arranged behind the handle in the prior art are avoided, so that the ultrasonic scalpel handle is more convenient to use.

Description

Ultrasonic scalpel handle and ultrasonic scalpel

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an ultrasonic scalpel handle to and ultrasonic scalpel.

Background

The ultrasonic scalpel adopts ultrasonic energy to be used for hemostatic separation and tissue coagulation of soft tissues in various endoscopic surgeries and conventional surgeries. With the popularization of minimally invasive surgery, an ultrasonic surgical knife has become a conventional surgical instrument and is widely used.

At present, an ultrasonic knife system in the market mainly comprises a host with an ultrasonic generator, a handle, a cutter and a transducer, wherein the transducer needs to be connected with a power supply through a connecting power line to obtain a power source. The power cord is usually suspended behind the handle, on one hand, the power cord has certain weight in the process of operation, so that a doctor needs larger holding force when holding the handle, and hands are tired; on the other hand, in the operation process, the transducer rotates to drive the cutter to change direction, and the power line can rotate along with the cutter, so that the winding knotting phenomenon is formed, and the operation during the operation is influenced to a great extent.

Disclosure of Invention

The utility model aims at providing a novel ultrasonic scalpel handle to solve one or more problems of the prior art.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an ultrasonic scalpel handle comprises a handle shell and a transducer assembly, wherein the handle shell is provided with an accommodating cavity, the transducer assembly can be accommodated in the accommodating cavity in a rotating mode around the axis of the transducer assembly, the transducer assembly comprises a transducer shell and a transducer, the transducer shell is provided with a hollow cavity penetrating through the transducer shell in the front-back direction, at least the rear portion of the transducer is accommodated in the hollow cavity,

the energy converter assembly further comprises an electricity connecting plate arranged at the rear part of the energy converter shell, a conductive part is arranged on the electricity connecting plate, the energy converter and the conductive part are electrically connected, an elastic conductive piece is further arranged in the accommodating cavity of the handle shell and abuts against the rear end face of the electricity connecting plate forwards, and the energy converter assembly is opposite to the handle shell in the rotating process around the axis of the energy converter assembly, and the elastic conductive piece is always in contact with the conductive part to keep electrical connection.

Preferably, the conductive part comprises a first conductive part and a second conductive part which are arranged in an insulated manner, the transducer is provided with a first power connection lead and a second power connection lead, the first power connection lead is electrically connected with the first conductive part, and the second power connection lead is electrically connected with the second conductive part; the elastic conductive piece is provided with a first elastic conductive piece and a second elastic conductive piece which are mutually independent, the first elastic conductive piece is abutted against the first conductive part, and the second elastic conductive piece is abutted against the second conductive part.

Further, the first conductive part and the second conductive part are disc-shaped or annular with the axial lead of the transducer assembly as the rotation center.

Further, the power connection board comprises a board body, a first conductive sheet and a second conductive sheet, wherein the first conductive sheet and the second conductive sheet are fixedly arranged on the board body and made of metal materials, the first conductive sheet forms the first conductive part, the second conductive sheet forms the second conductive part, the first elastic conductive part abuts against the back side surface of the first conductive sheet, and the second elastic conductive part abuts against the back side surface of the second conductive sheet.

Furthermore, the second conducting strip is annular and is annularly arranged on the circumferential outer side of the first conducting strip, and the first conducting strip and the second conducting strip are arranged at intervals along the radial direction of the power connection plate.

In some embodiments, the plate body is provided with a first through hole and a second through hole penetrating along the thickness direction of the plate body, the first electrical connection lead is arranged in the first through hole in a penetrating manner and fixedly connected to the first conductive sheet, and the second electrical connection lead is arranged in the second through hole in a penetrating manner and fixedly connected to the second conductive sheet.

In some embodiments, the first elastic conductive member and the second elastic conductive member are elastic pieces made of metal materials, one end portion of the first elastic conductive member and one end portion of the second elastic conductive member are respectively and fixedly arranged in the handle housing, the other end portion of the first elastic conductive member is pressed against the first conductive portion, and the other end portion of the second elastic conductive member is pressed against the second conductive portion.

Preferably, the transducer comprises a horn shaft and a horn core which are sequentially arranged along the axial direction, the horn shaft is at least partially positioned outside the hollow cavity and at the front side of the transducer shell, and the horn core is fixedly accommodated in the hollow cavity.

Preferably, the handle of the ultrasonic scalpel further comprises a power supply connecting wire, one end of the power supply connecting wire is fixedly and electrically connected with the elastic conductive piece, and the other end of the power supply connecting wire penetrates out of the accommodating cavity from the lower part of the handle shell.

The utility model also aims to provide an ultrasonic scalpel with the handle.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an ultrasonic scalpel comprises the ultrasonic scalpel handle and a cutter, wherein the cutter is detachably mounted on the ultrasonic scalpel handle.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses an ultrasonic scalpel handle, wherein set firmly the transducer in the transducer casing and connect the electroplax and constitute the transducer subassembly in the rear portion setting, it is electrically conductive to embed at handle shell simultaneously to establish elasticity, make elasticity electrically conductive ground support to lean on to connect the electroplax to realize the electricity and connect, so, no matter how rotatory the transducer subassembly, be connected with elasticity electrically conductive if connecting wire such as power cord can not follow the rotation, this setting of power cord on the ultrasonic scalpel handle of not only being convenient for, a series of problems of bringing because of the power cord setting at the rear of handle among the prior art have still been avoided, make this ultrasonic scalpel handle's use convenience more.

Drawings

FIG. 1 is a schematic structural view of an ultrasonic scalpel system of the present invention;

FIG. 2 is a schematic structural view of the handle of the ultrasonic scalpel of the present invention;

FIG. 3 is an exploded view of the handle of the ultrasonic scalpel of the present invention;

FIG. 4 is a perspective view of the cutting tool of the present invention;

FIG. 5 is a schematic front view of the inner tube of the cutting tool of the present invention;

FIG. 6 is a schematic structural view of the middle knife, the connecting assembly and the driving mechanism of the present invention;

FIG. 7 is a schematic view of the internal structure of the middle cutter, the connecting assembly and the driving mechanism of the present invention; FIG. 7A is an enlarged view of portion P of FIG. 7;

FIG. 8 is a perspective view of a slide block of the drive mechanism of FIG. 6;

fig. 9 is a schematic view of the overall structure of the connector in the connecting assembly of the present invention; FIG. 9A is a longitudinal cut-away schematic view of FIG. 9;

FIG. 10 is a schematic view of the internal structure of the handle of the ultrasonic surgical blade, wherein the blade is not yet installed in the handle;

FIG. 11 is a schematic sectional view taken along line A1-A1 of FIG. 10;

FIG. 12 is a schematic view of the internal structure of an ultrasonic scalpel in which the blade is inserted into the handle of the ultrasonic scalpel and the outer tube has been connected to the transducer but the inner tube has not yet been connected;

FIG. 13 is a schematic sectional view taken along line A2-A2 of FIG. 12;

FIG. 14 is a schematic view of the internal structure of an ultrasonic scalpel in which the blade is attached to the handle of the ultrasonic scalpel;

FIG. 15 is a schematic sectional view taken along line A3-A3 of FIG. 14;

FIG. 16 is a schematic diagram of the overall structure of the transducer assembly of the present invention;

FIG. 17 is an exploded view of the transducer assembly of FIG. 16;

FIG. 18 is a front view of the transducer assembly of FIG. 16;

FIG. 19 is a sectional view taken along the line X-X in FIG. 18;

FIG. 20 is a left side view of the transducer assembly of FIG. 16;

FIG. 21 is a schematic view of a connection structure of a transducer assembly to a resilient conductive member;

fig. 22 is a schematic diagram of the arrangement structure of the internal circuit and the electronic components of the handle of the ultrasonic scalpel of the present invention.

Wherein: 1. an ultrasonic scalpel handle; 11. a handle housing; 11a, shell-left; 11a1, glue lid-left; 11b, shell-right; 11b1, glue lid-right; 11c, a top cover;

12. a transducer assembly; 121. a transducer housing; 121a, knurled teeth; 122. a transducer; 1221. a horn core; 1222. an amplitude variation rod shaft; 1223. a retainer ring; 123. a power connection plate; 123O, plate body; 123a, a first conductive sheet; 123b, a second conductive sheet; 123c, a first perforation; 123d, second perforations; 124. a connecting screw; 125. rubber pads, 126, rubber rings; 127. a front shield cover; 128. a rear seal ring; 129. a screw;

13. an elastic conductive member; 131. a first elastic conductive member; 132. a second elastic conductive member;

14. a drive mechanism; 141. a slider; 141a, a sleeve portion; 141b, a sliding part; 142. a third elastic member (wave spring); 143. adjusting the nut; 144. a second elastic member (spring); 145. a handle; 146. a pin shaft; 147. a hinge;

15. a connecting assembly; 151. a connector; 1511. a front sleeve; 1512. a limit retainer ring; 1513. a rear sleeve; 1514. a limiting ring; 1515. a through hole; 152. a ball cap; 152a, a sliding cylinder portion; 152b, a pushing part; 152c, a limiting cylinder part; 153. a ball bearing; 154. a first elastic member (spring);

16. a transducer restraint assembly; 161. a pressure lever; 161a, a pressure holding part; 162. a shaft; 163. a torsion spring;

17. a self-tightening assembly; 171. an outer ring; 172. an inner sleeve of the knob; 173. a spring plate;

181. a display screen; 182. a perspective window; 183. a function key; 184. a front key; 191. a circuit board; 192. a front key FPC group; 193. a horn; 194. a PCB group; 195. a transformer; 196. a socket; 197. a protective sleeve; 198. a power line;

2. a cutter; 21. an outer tube; 22. an inner tube; 221. a rear pipe body; 222. mounting a boss; 22a and a limiting surface; 22b, a tapered ramp; 22c, a kidney-shaped hole; 23. clamping jaws; 24. an outer tube end; 241. spline teeth; 25. a cutter bar; 251. a cutter head;

3. a power adapter; 31. a connecting wire; 4. a foot switch.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

For convenience of description, the relative position of the components in the ultrasonic scalpel is described, and the above and following descriptions about the front and rear directions are defined by referring to the direction observed by the operator when holding the ultrasonic scalpel for operation, wherein the position of the ultrasonic scalpel acting on the operation part is the front, and the position of the ultrasonic scalpel close to the human body is the rear.

Referring to fig. 1, the ultrasonic scalpel system comprises an ultrasonic scalpel, and a power adapter 3 for the function of the ultrasonic scalpel, and a foot switch 4 is optionally provided for controlling the operation of the ultrasonic scalpel, such as opening and closing, wherein the ultrasonic scalpel comprises an ultrasonic scalpel handle 1 and a cutter 2 detachably mounted on the ultrasonic scalpel handle 1.

Referring to fig. 4 and 5, the cutter 2 includes an inner tube 22, an outer tube 21 and a cutter bar 25, where the inner tube 22 is disposed in a lumen of the outer tube 21 in a manner of relatively sliding along the front-back direction, the inner tube 22 and the outer tube 21 are disposed coaxially, and a cutter limiting structure for limiting the relative sliding displacement of the inner tube 22 and the outer tube 21 along the axial direction is further disposed between the inner tube 22 and the outer tube 21, where the cutter limiting structure specifically includes a waist-shaped groove 22c disposed on the inner tube 22 and a limiting pin (not shown) fixed on the outer tube 21, and the limiting pin is inserted into the waist-shaped groove 22c in a sliding fit manner, so as to prevent the inner tube 22 from slipping out of position forwards or backwards with respect to the outer tube 21. The knife bar 25 is inserted into the lumen of the inner tube 22 in a manner that it can slide relatively along its length direction, and its rear portion is extended backward from the inner tube 22, and its front portion has a knife bar head 251. The cutter bar 25 and the outer tube 21 are connected through a limit pin to be kept relatively fixed, so that the cutter bar 25 and the outer tube 21 can keep synchronous movement, and the synchronous movement mainly comprises synchronous rotation and synchronous forward and backward movement relative to the inner tube 22.

The knife 2 further comprises a front jaw 23 rotatably disposed between the front portion of the inner tube 22 and the front portion of the outer tube 21, wherein the jaw 23 is driven to open or close relative to the knife head 251 during the relative sliding of the inner tube 22 relative to the outer tube 21 in the forward and backward directions, so as to clamp or stop bleeding of soft tissue of a surgical object.

An outer pipe joint 24 is fixedly arranged at the rear part of the outer pipe 21, a plurality of spline teeth 241 distributed at intervals along the circumferential direction are arranged on the outer pipe joint 24, and ribs of the spline teeth 241 extend along the front-back direction. The inner tube 22 includes an inner tube body 221 and a mounting boss 222 extending rearward from the inner tube body 221, the mounting boss 222 and the inner tube body 221 are substantially integrally formed, an outer diameter of the mounting boss 222 is larger than an outer diameter of the inner tube body 221, a limiting surface 22a is formed at a position where the mounting boss 222 and the inner tube body 221 are connected, the limiting surface 22a is a conical surface whose outer diameter gradually increases from front to rear, and an outer peripheral surface of the mounting boss 222 is a conical inclined surface 22b whose outer diameter gradually increases from rear to front.

Referring to the drawings, the ultrasonic scalpel handle 1 comprises a handle housing 11 and a transducer assembly 12, wherein the handle housing 11 comprises a left housing 11a and a right housing 11b which are fixedly connected and matched, and a top cover 11c which is arranged at the top and is provided with a containing cavity, and the transducer assembly 12 can be rotatably contained in the containing cavity around the axis line of the transducer assembly 12.

Referring to fig. 16 to 18, the transducer assembly 12 includes a transducer housing 121 and a transducer 122, the transducer housing 121 has a hollow cavity penetrating in the front-rear direction, the transducer 122 includes a horn shaft 1222 and a horn core 1221 sequentially arranged in the axial direction, the horn core 1221 is entirely accommodated in the hollow cavity of the transducer housing 121, and the front portion of the horn shaft 1222 extends out of the hollow cavity and is used for connecting with the cutter 2.

The transducer assembly 12 further includes a contact plate 123 disposed at the rear of the transducer housing 121, the contact plate 123 is provided with a conductive portion, and the transducer 122 is electrically connected to the conductive portion through a conductive wire. The accommodating cavity of the handle shell 11 is also provided with an elastic conductive piece 13, the elastic conductive piece 13 is abutted against the rear end face of the electricity-connecting plate 123 forwards, and in the process that the transducer assembly 12 rotates around the axis line of the transducer assembly 12 relative to the handle shell 11, the elastic conductive piece 13 is always in contact with the conductive part to keep electric connection.

Specifically, the conductive portions include a first conductive portion and a second conductive portion that are insulated from each other, the transducer 122 has two electrical connecting wires, a first electrical connecting wire and a second electrical connecting wire (not shown in the figure), the first electrical connecting wire is electrically connected to the first conductive portion, and the second electrical connecting wire is electrically connected to the second conductive portion. Elastic conductive member 13 also includes a first elastic conductive member 131 and a second elastic conductive member 132 which are independent and insulated from each other, the first elastic conductive member 131 abutting on the first conductive portion and the second elastic conductive member 132 abutting on the second conductive portion. The first and second conductive parts are disc-shaped or circular ring-shaped with the axial lead of the transducer assembly 12 as the rotation center, so that the first and second elastic

conductive parts

131 and 132 can respectively abut against the first and second conductive parts in the process of rotating the transducer assembly 12 around the own axial lead.

In this embodiment, the power connection plate 123 includes a plate body 123O, and a first conductive sheet 123a and a second conductive sheet 123b that are fixed on the plate body 123O and made of a metal material, wherein the first conductive sheet 123a is disc-shaped, the second conductive sheet 123b is annular and is circumferentially disposed outside the first conductive sheet 123a, and the first conductive sheet 123a and the second conductive sheet 123b are disposed at intervals along a radial direction of the power connection plate 123, that is, an outer peripheral wall of the first conductive sheet 123a and an inner peripheral wall of the second conductive sheet 123b have a certain distance in the radial direction of the power connection plate 123. The first conductive sheet 123a constitutes a first conductive portion, and the second conductive sheet 123b constitutes a second conductive portion.

The plate body 123O is provided with a first through hole 123c and a second through hole 123d penetrating along the thickness direction thereof, the first electrical connection wire is inserted into the first through hole 123c and fixed on the first conductive sheet 123a by welding to realize electrical connection, and the second electrical connection wire is inserted into the second through hole 123d and fixed on the second conductive sheet 123b by welding to realize electrical connection.

Referring to fig. 3 and 21, the first elastic conductive member 131 and the second elastic conductive member 132 are both elastic sheets made of metal materials, the lower end portion of the first elastic conductive member 131 and the lower end portion of the second elastic conductive member 132 are respectively and fixedly disposed in the handle housing 11, the upper end portion of the first elastic conductive member 131 forwardly presses against the rear side surface of the first conductive plate 123a, and the upper end portion of the second elastic conductive member 132 forwardly presses against the rear side surface of the second conductive plate 123 b.

So, only need to connect the two conductor wires of power cord and connect first elastic conduction piece 131 and second elastic conduction piece 132 respectively, then just can draw the power cord out from the lower part of handle shell 11 and insert the power, so, transducer subassembly 12 is around self axial lead pivoted in-process in handle shell 11, the power cord can not follow the rotation, just so avoided because of the power cord stretches out from the rear portion of handle shell 11 and bring if arm application of force great tired, a series of problems such as the power cord is knoed etc. well.

The front portion of the horn shaft 1222 of the transducer 122 is also fixedly provided with a coupling screw 124 for detachable coupling with the tool 2.

When the transducer assembly 12 is installed, as shown in fig. 16 and 17, the power receiving plate 123 is a disk shape and is fixed to the rear of the transducer housing 121 by a plurality of screws 129, and a rear sealing ring 128 is disposed between the power receiving plate 123 and the rear end surface of the transducer housing 121, so that the rear of the transducer housing 121 is sealed.

A retainer ring 1223 having an outer diameter larger than the outer diameter of either the horn shaft 1222 or the horn core 1221 is further provided on the transducer 122 at the location of the horn shaft 1222 or the horn core 1221, a rubber gasket 125, a rubber ring 126, and a front retainer cap 127 are further provided on the front portion of the transducer housing 121, and the front retainer cap 127 is fixedly fitted on the front portion of the transducer housing 121, and the rubber ring 126 and the rubber gasket 125 are compressed between the retainer ring 1223 and the front retainer cap 127, so that the front portion of the transducer housing 121 is also sealed. In this manner, the horn core 1221 is fixedly sealed within the transducer housing 121. The transducer assembly 12 is conveniently mounted as an integral component into the interior cavity of the handpiece housing 11.

The ultrasonic scalpel handle 1 further comprises a connecting assembly 15, the connecting assembly 15 is mainly used for realizing the detachable connection with an inner tube 22 in the scalpel 2, and the ultrasonic scalpel handle 1 further comprises a driving mechanism 14 used for driving the connecting assembly 15 to move forwards and backwards so as to enable the inner tube 22 to move forwards and backwards relative to the outer tube 21. See in particular fig. 3 to 15. Wherein:

the connection assembly 15 includes:

a connector 151, the axis of the connector 151 extending in the front-rear direction where its axis extends in line with the axis of the transducer 122. The connector 151 is provided with a hollow channel through which the inner pipe 22 of the cutter 2 can be slidably penetrated from front to back, a plurality of through holes 1515 are arranged on the circumferential side wall of the connector 151, and all the through holes 1515 are distributed at intervals along the circumferential direction and are communicated with the hollow channel of the connector 151;

the number of the balls 153 is the same as that of the through holes 1515, and in the embodiment, four balls 153 and four through holes 1515 are arranged;

the ball cap 152 is sleeved on the front part of the connector 151 in a manner that the ball cap 152 can relatively slide in the front-back direction, an abdicating channel is formed between the inner side peripheral wall of the ball cap 152 and the outer side peripheral wall of the connector 151 and is used for abdicating the balls 153 when moving outwards relative to the through hole 1515, and the ball cap 152 is further provided with a limiting structure which is used for limiting the balls 153 in the through hole 1515 and preventing the balls 153 from rolling or sliding in the abdicating channel;

a first elastic member 154, here embodied as a spring, the first elastic member 154 is disposed between the connector 151 and the ball cap 152 and is used to urge the ball cap 152 to move forward, so that the limiting structure limits the ball 153 in the through hole 1515,

as shown in fig. 6, 7 and 7A, the tool 2 is axially and relatively slidably inserted through the hollow passage of the connector 151 from front to back, the rear end of the tool holder 25 is fixedly connected to the horn shaft 1222 of the transducer 122 by means of screw connection, the balls 1515 are correspondingly inserted into the through holes 1515, at least part of each ball 1515 is located in the hollow passage of the connector 151, and the position-limiting surface 22a on the inner tube 22 is located behind the ball 1515. This allows the inner tube 22 to be mounted on the connector 151 and rotated relative to the connector 151, while allowing the inner tube 22 to be moved rearward relative to the outer tube 21 when the connector 151 is actuated rearward.

Specifically, referring to fig. 9 and 9A, the connector 151 has a front sleeve 1511 and a rear sleeve 1513 connected in an axial direction, a limit stop 1512 is formed at a position where the front sleeve 1511 is connected to the rear sleeve 1513, and an outer diameter of the limit stop 1512 is larger than an outer diameter of the front sleeve 1511 and an outer diameter of the rear sleeve 1513. The through hole 1515 is disposed at the front end of the front sleeve 1511, a limit ring 1514 is further formed in the inner cavity of the front sleeve 1511, the knife bar 25 is slidably inserted into the limit ring 1514, and the mounting boss 222 of the inner tube 22 is limited between the limit ring 1514 and the balls 1515 in the front-rear direction, so that after the inner tube 22 is mounted on the connector 151, the inner tube 22 is axially fixed to the connector 151, and thus, the connector 151 is driven to move back and forth to drive the inner tube 22 to move synchronously in the front-rear direction.

Referring to fig. 7 and 7A, the ball cap 152 has a sliding cylinder portion 152a, a pushing portion 152b and a limiting cylinder portion 152c which are connected in sequence from front to back, the inner diameter of the sliding cylinder portion 152a is larger than that of the limiting cylinder portion 152c, and the fixed leg portion 152b is in a tapered cylinder shape with the inner diameter gradually decreasing from front to back, wherein an abdicating channel is formed between the inner side peripheral wall of the sliding cylinder portion 152a and the outer side peripheral wall of the front sleeve 1511 of the connector 151, and the ball 153 can be partially accommodated in the abdicating channel; the inner peripheral wall of the restraining cylinder portion 152c forms the restraining structure, that is, when the restraining cylinder portion 152c corresponds to the through hole 1515, the distance between the inner peripheral wall of the restraining cylinder portion 152c and the outer peripheral wall of the front sleeve 1511 is smaller than the diameter of the ball 153, so that the ball 153 is restrained in the through hole 1515 and cannot move back and forth.

The aperture of the through hole 1515 is gradually decreased from the outside of the connector 151 to the inside in the radial direction, and the bottom diameter of the through hole 1515 is smaller than the diameter of the ball 1515, so that the ball 1515 does not fall from the through hole 1515 into the hollow cavity of the connector 151 completely, and at the same time, the ball 1515 can be at least partially located in the hollow cavity of the connector 151 when being placed in the through hole 1515 for cooperating with the inner tube 22 to form a limit for the forward movement of the inner tube 22.

As shown in fig. 3, 6, 7, 10, and 15, the drive mechanism 14 includes:

and a slider 141, the slider 141 being slidably provided on the handle case 11, the slider 141 being connected to the connector 151. Specifically, the slider 141 includes a sliding portion 141b and a sleeve portion 141a arranged in an L shape, wherein the sleeve portion 141a is fitted over the rear sleeve 1513 of the connector 151, and the sliding portion 141b extends in the front-rear direction and is slidably provided in the handle housing 11 in the front-rear direction;

a second elastic member 144, specifically a spring here, the second elastic member 144 being disposed between the handle housing 11 and the rear portion of the sliding portion 141b and serving to provide a force required for the forward movement of the slider 141;

a handle 145, which is rotatably disposed on the handle housing 11 around a pin 146, and an operation portion of which is located outside the receiving cavity of the handle housing 11 and a part of which is located in the receiving cavity of the handle housing 11;

a linkage assembly disposed between the handle 145 and the slider 141 and configured to drive the slider 141 back and forth when the handle 145 is rotated. Here, the linkage assembly is a mechanism including a hinge 147 to convert rotation of the actuating handle 145 into sliding of the slider 141.

The driving mechanism 14 further includes an adjustable adjusting nut 143 disposed at the rear of the connector 151, and a third elastic member 142 for urging the adjustable adjusting nut 143 and the sleeve portion 141a to move away from each other in the front-rear direction is disposed between the adjustable adjusting nut 143 and the sleeve portion 141a, where the third elastic member 142 is a wave spring sleeved on the rear sleeve 1513, and the sleeve portion 141a of the slider 141 is limited between the third elastic member 142 and a limit stop 1512. By rotating the adjustment nut 143, the wave spring can be pressed in different states, so that different amounts of force need to be applied to move the sleeve portion 141a backward relative to the connector 151.

Referring to fig. 3 and 6, the ultrasonic scalpel handle 1 is further provided with a transducer restraining assembly 16, the transducer restraining assembly 16 includes two sets which are arranged on the left side and the right side of the transducer assembly 12, each set includes a pressing rod 161 extending along the front-back direction, the front portion of the pressing rod 161 is rotatably arranged on the handle housing 11 through a shaft 162 extending along the up-down direction, the rear portion of the pressing rod 161 is provided with a pressing portion 161a, the pressing portion 161a is an arc-shaped piece, and the side surface of the pressing rod facing the transducer assembly 12 is provided with knurled teeth; a torsion spring 163 is sleeved on the shaft 162 for driving the pressing portion 161a to move away from the transducer assembly 12. The front portion of the transducer housing 121 of the transducer assembly 12 is also provided with a knurled teeth portion 121a having a ring of knurled teeth formed thereon that can mesh correspondingly with the knurled teeth on the pressure holding portion 161 a.

When the pressing portions 161a on the left and right sides move toward the transducer assembly 12 and press against the knurled teeth 121a, the transducer assembly 12 can be restricted in the circumferential direction by the engagement of the knurled teeth, so that the transducer assembly 12 is prevented from rotating. A rubber cover-left 11a1 is arranged on the casing-left 11a of the handle casing 11, a rubber cover-right 11b1 is arranged on the casing-right 11b, the rubber cover-left 11a1 corresponds to the position of the left pressing part 161a, and the rubber cover-right 11b1 corresponds to the position of the right pressing part 161a, so that during operation, two fingers of an operator respectively pinch and press the rubber cover-left 11a1 and the rubber cover-right 11b1 to deform the rubber cover-left 11a and the rubber cover-right 11b1, so that the pressing parts 161a on the two sides can be driven to synchronously move towards the transducer assembly 12, and the rotation of the transducer assembly 12 is restrained.

Referring to fig. 3 and 6, the ultrasonic scalpel handle 1 is further provided with a self-tightening assembly 17, the self-tightening assembly 17 comprises an outer ring 171, a knob inner sleeve 172, and a spring 173 disposed between an outer periphery of the knob inner sleeve 172 and an inner periphery of the outer ring 171, wherein a plurality of positioning grooves are disposed on an inner periphery of the outer ring 171, each positioning groove extending in a front-rear direction and being mainly used for being correspondingly matched with the outer tube adapter 24 at a rear portion of the outer tube 21 of the scalpel 2, when the outer tube adapter 24 is inserted into the outer ring 171, spline teeth 241 thereon are matched with the positioning grooves, so that the outer ring 171 and the outer tube 21 are circumferentially positioned and can rotate synchronously, thereby, when a user rotates the outer ring 171, the outer tube 21 of the scalpel 2 can be driven to rotate synchronously, the scalpel bar 25 rotates synchronously therewith, and accordingly, a fastening installation between the scalpel bar 25 and the transducer assembly 12 does not need to be achieved by means such as a torque wrench and the like from the outside, the operation is more convenient.

The use method and the installation method of the ultrasonic scalpel of the utility model are briefly explained as follows:

when not in use, the ultrasonic-scalpel handle 1 and the blade 2 are separated from each other and stored independently of each other, as shown in fig. 10 and 11, in this case, the balls 153 are located in the through holes 1515 in the ultrasonic-scalpel handle 1 and correspond to the positions of the sliding tube portions 152a of the ball caps 152.

When the cutter 2 is installed, the left rubber cover 11a1 and the right rubber cover 11b1 are pinched to deform the rubber covers, so that the rotation of the transducer assembly 12 is restricted, and then the rear part of the cutter 2 is inserted backwards from the front part of the ultrasonic scalpel handle 1, so that the spline teeth on the outer tube 21 of the cutter 2 correspond to the positioning grooves in the outer ring 171; continued insertion of the tool 2 rearwardly until the rear of the tool shaft 25 contacts the front of the knife transducer assembly 12, rotates the tool 2 so that the rear of the tool shaft 25 is threadably connected to the horn shaft 1222 of the transducer 122.

In the process of moving the cutter 2 backwards, referring to fig. 12 and 13, the tapered inclined surface 22b of the mounting protrusion 222 of the inner tube 22 contacts the ball 153 first, the ball 153 is pushed to move upwards first to enter the abdicating channel, so that the inner tube 22 can move backwards, after the mounting protrusion 222 passes over the ball 153, the ball cap 152 moves forwards under the action of the first elastic member 154 and the second elastic member 144, the pushing portion 152b in the ball cap 152 acts on the ball 153, so that the ball 153 moves inwards towards the through hole 1515 until the position of the limiting cylinder portion 152c corresponds to the position of the through hole 1515, the ball 153 is limited in the through hole 1515, and a part of the ball 153 extends into the hollow cavity of the connector 151 and abuts against the limiting surface 22b on the front side of the mounting protrusion 222 to form a limiting position in front of the mounting protrusion 222, and the mounting of the inner tube 22 is completed. Finally, the outer ring 171 is rotated again so that the entire tool 2 rotates therewith, so that the threaded connection of the tool shank 25 to the horn shaft 1222 of the transducer 122 is more stable.

During the use of the ultrasonic scalpel, the user can dial the outer ring 171 to adjust the angle of the cutter 2; in the process of performing an operation, an operator holds the handle 145, the cutter 2 has two different working states in the process of driving the handle 145 to rotate, at the initial stage of rotation of the handle 145, the sliding block 141 moves backwards against the acting force of the second elastic part 144, the sliding block 141 simultaneously passes through the wave spring of the third elastic part 142 to the adjusting nut 143 to drive the connector 151 to move backwards, the ball 153 drives the inner tube 22 to move backwards relative to the outer tube 21, and the jaw 23 is driven to be in contact with the cutter bar head 251, so that the jaw closing operation is realized at this stage, and the operations such as clamping soft tissues can be realized at this stage; when the handle 145 is further rotated, the slider 141 continues to press the second elastic member 144, and the second elastic member 144 is compressed and forms a spring pressure, so that the inner tube 22 is further pulled backwards, and the jaws 23 are further closed to form a clamping force, which can be used for cutting and separating soft tissue and hemostasis operations. After the operation is completed, the components are reset by the elastic members by releasing the handle 145.

Referring to fig. 3 and 22, the ultrasonic scalpel handle 1 also has the following components or circuit arrangements: the top of the handle shell 11 is provided with a display screen 181 which is covered by a perspective window for displaying information to be indicated, and one side of the display screen 181 is provided with a function key 183; the top of the handle housing 11 is also provided with a PCB assembly 194, and the rear portion thereof is provided with a transformer 195, which is connected to the elastic conductive member 13 behind the transducer assembly 12 through a power line 198, and has a short wire path and low electromagnetic radiation. The lower portion of the handle housing 11 is provided with a socket 196 and a protective sleeve 197 for detachably connecting the connection line 31 of the power adapter 3. The handle of the handle shell 11 is provided with a circuit board 191, the front part of the handle is also provided with a front key 184, and the handle shell 11 is also provided with a horn 193 and a front key FPC group 192.

After the ultrasonic scalpel handle 1 is connected with the power adapter 3 and then is connected with the power of the power adapter 3, the front button 184 and the function button 183 are activated to check the system status, the horn 193 of the front button 184 is activated to emit an activation prompt tone, the function button 183 is pressed, the handle NFC communicates with the cutter NFC chip, the tool is subjected to code recognition, the output power is matched according to the code of the tool, after the communication matching is completed (after the tool is installed, a main control chip in a handle successfully handshakes with a tool NFC chip to establish communication, and various tool bit information in the NFC chip is read, including but not limited to product ID, used times, tool bit working power, tool bit working frequency and the like, after the information is successfully read and is effective, the main control chip in the handle judges that the tool bit is an effective tool bit, the matching program is considered to be completed, and the system can enter a standby mode to wait for exciting work.), and the system can be used for performing surgical operation. The operator may select the operational mode, which is viewable on the display screen 181, via the function keys 183. When the system is in failure, the horn 193 will send out alarm prompt tone, and the display screen 181 will prompt fault code.

When soft tissue is treated, the front button 184 is activated, electricity of the power board is transmitted to the ceramic wafer of the amplitude rod shaft 1222 of the transducer 122 through the control board, the ceramic wafer generates high-frequency ultrasonic vibration, the ultrasonic vibration is amplified and transmitted to the cutter bar 25 through the amplitude rod shaft 1222, so as to realize the cutting of the tissue, (the upper button of the front button 184 is a high-power button mainly used for cutting the tissue, the lower button is a low-power button mainly used for blood vessel occlusion), when the tissue is cut off or the blood vessel occlusion, the activation of the front button 184 is stopped, the handle 145 is released, the clamp 23 is reset and opened, and the closing and opening cycle is completed. The above process is repeated for a plurality of times to complete the operation (there is also the case of activating the front button 184 to cut without closing the clamp 23, which is not separately described).

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. An ultrasonic scalpel handle comprising a handle housing and a transducer assembly, the handle housing having an accommodating cavity in which the transducer assembly is rotatably accommodated about its axial center line, the ultrasonic scalpel handle comprising: the transducer assembly comprises a transducer shell and a transducer, wherein the transducer shell is provided with a hollow cavity which penetrates through the transducer shell along the front-back direction, at least the rear part of the transducer is accommodated in the hollow cavity,

2. The ultrasonic surgical blade handle of claim 1, wherein: the transducer comprises a first power connection lead and a second power connection lead, the first power connection lead is electrically connected with the first conductive part, and the second power connection lead is electrically connected with the second conductive part;

the elastic conductive piece is provided with a first elastic conductive piece and a second elastic conductive piece which are mutually independent, the first elastic conductive piece is abutted against the first conductive part, and the second elastic conductive piece is abutted against the second conductive part.

3. The ultrasonic surgical blade handle of claim 2, wherein: the first conductive part and the second conductive part are disc-shaped or circular ring-shaped with the axial lead of the transducer assembly as a rotation center.

4. The ultrasonic surgical blade handle of claim 2, wherein: the power connection plate comprises a plate body, a first conducting plate and a second conducting plate, wherein the first conducting plate and the second conducting plate are fixedly arranged on the plate body and made of metal materials, the first conducting plate forms the first conducting part, the second conducting plate forms the second conducting part, the first elastic conducting piece abuts against the back side face of the first conducting plate, and the second elastic conducting piece abuts against the back side face of the second conducting plate.

5. The ultrasonic surgical blade handle of claim 4, wherein: the second conducting strip is annular and is annularly arranged on the circumferential outer side of the first conducting strip, and the first conducting strip and the second conducting strip are arranged at intervals along the radial direction of the power connection plate.

6. The ultrasonic surgical blade handle of claim 4, wherein: the plate body is provided with a first through hole and a second through hole which penetrate through the plate body along the thickness direction of the plate body, the first electric connecting lead is arranged in the first through hole in a penetrating mode and fixedly connected to the first conductive sheet, and the second electric connecting lead is arranged in the second through hole in a penetrating mode and fixedly connected to the second conductive sheet.

7. The ultrasonic surgical blade handle of claim 2, wherein: the first elastic conductive piece and the second elastic conductive piece are elastic pieces made of metal materials, one end part of the first elastic conductive piece and one end part of the second elastic conductive piece are respectively and fixedly arranged in the handle shell, the other end part of the first elastic conductive piece is forwards pressed on the first conductive part, and the other end part of the second elastic conductive piece is forwards pressed on the second conductive part.

8. The ultrasonic surgical blade handle of claim 1, wherein: the transducer comprises a horn shaft and a horn core which are sequentially arranged along the axial direction, the horn shaft is at least partially positioned outside the hollow cavity and positioned on the front side of the transducer shell, and the horn core is fixedly accommodated in the hollow cavity.

9. The ultrasonic surgical blade handle of any one of claims 1 to 8, wherein: the ultrasonic scalpel handle further comprises a power supply connecting wire, one end of the power supply connecting wire is electrically connected with the elastic conductive piece fixedly, and the other end of the power supply connecting wire penetrates out of the accommodating cavity from the lower portion of the handle shell.

10. An ultrasonic surgical blade characterized in that: comprising an ultrasonic-surgical-blade handle according to any one of claims 1 to 9, and a cutter detachably mounted on the ultrasonic-surgical-blade handle.