CN222018392U - Ultrasonic knife with smoking function - Google Patents

Abstract

The utility model discloses an ultrasonic knife with a smoking function, which comprises a shell, a rotating button, an outer sleeve, an inner sleeve and a pulling piece, wherein the pulling piece is used for driving the inner sleeve to slide in the outer sleeve, a gap between the outer sleeve and the inner sleeve is a smoking channel, the rotating button is fixedly connected with the outer sleeve, a smoking cavity communicated with the smoking channel is arranged in the rotating button, a smoke discharging hose is communicated with the outside of the smoking cavity, the smoke discharging hose is externally connected with a negative pressure generating device, a switch for controlling the negative pressure generating device to start and stop is also arranged in the shell, and the pulling piece is provided with a trigger rod corresponding to the switch. According to the utility model, when the spanner is pressed to perform operation, the switch is synchronously triggered to smoke, the operation of starting the smoke button is not needed, the problem of inconvenient starting of the smoke sucking function of the ultrasonic knife with the smoke sucking function in the prior art is perfectly solved, the smoke sucking operation is not performed when the ultrasonic knife is only clamped, and the influence on the operation environment is avoided.

Description

Ultrasonic knife with smoking function

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an ultrasonic knife with a smoking function.

Background

The ultrasonic knife is a high-tech instrument commonly used for medical operation, mainly utilizes ultrasonic energy to realize the aim of cutting and coagulating tissues, has the advantages of high efficiency, accuracy, no blood, no pain, less heat damage and the like by converting high-frequency vibration into cutting energy, can realize non-contact cutting in operation, reduces damage and bleeding of tissues, can accurately cut tissues and coagulate bleeding points, and can carry out ablation treatment in operation, and can be used for many different types of operations including laparoscopic operation, neurosurgery operation, heart operation and the like.

The ultrasonic surgical knife can generate a large amount of heat to enable the operation part and surrounding liquid to be vaporized when the knife head oscillates and cuts blood coagulation tissues, so that the endoscope lens is seriously shielded, the operation efficiency is affected, a large amount of tissue liquid still exists at the operation part during operation, the liquid like blood needs to be sucked, the liquid enters the operation part like the abdominal cavity by using the integrated smoking device, and the operation part is not easy to clean and replace.

In the prior art, the smoking device aiming at the ultrasonic knife only needs to smoke in the operation process, and the conventional smoking device needs to be controlled to start and stop by a special switch, so that the operator brings great inconvenience in starting or stopping the smoking device.

Disclosure of utility model

The application provides an ultrasonic knife with a smoking function, which solves the technical problem that the smoking function of the ultrasonic knife with the smoking function is inconvenient to open in the prior art.

The utility model adopts the technical scheme that: the utility model provides an ultrasonic knife with smoking function, includes casing, rotary knob, outer tube, interior sleeve pipe and spanner, spanner is used for driving interior sleeve pipe slides in the outer tube, gap between outer tube and the interior sleeve pipe is the smoking passageway, rotary knob with fixed connection between the outer tube, and be equipped with in the rotary knob with the smoking cavity of smoking passageway intercommunication, the outdoor intercommunication of smoking cavity has the smoke exhaust hose, the external negative pressure generating device of smoke exhaust hose, still be equipped with in the casing and be used for controlling the switch that negative pressure generating device opened and stopped, spanner be equipped with the trigger lever that the switch corresponds.

Further, the rotary button is including locating rotatory joint piece in the casing, be equipped with annular draw-in groove in the casing, rotatory joint piece is equipped with the joint and is in the snap ring body in the annular draw-in groove, be equipped with in the rotatory joint piece the smoking cavity, the hose joint dish of intercommunication smoking cavity is equipped with outward to rotatory joint piece, the hose joint dish with the exhaust fume hose is connected, the hose joint dish with rotatory joint piece rotates to be connected.

Further, the hose connecting disc is annular, the hose connecting disc is sleeved on the outer side of the rotary clamping block, an annular cavity connected with the smoke discharging hose is arranged in the hose connecting disc, an annular opening is formed in the rotary clamping block, and the annular cavity corresponds to the annular opening.

Further, a pair of corresponding first mounting grooves and a pair of corresponding second mounting grooves are formed between the hose connecting disc and the rotary clamping block, balls are arranged in the first mounting grooves, and sealing rings are arranged in the second mounting grooves.

Further, the ultrasonic knife further comprises a sliding piece, the sliding piece can be arranged in the shell in a sliding mode in the axial direction of the inner sleeve, the sliding piece is fixed with the inner sleeve, and the pulling piece is in transmission connection with the sliding piece.

Further, the ultrasonic knife further comprises a connecting sleeve, the connecting sleeve is fixedly sleeved on the inner sleeve, and the outer side of the connecting sleeve is connected with the sliding piece.

Further, an annular groove is formed in the outer side of the connecting sleeve and concentric with the inner sleeve, and the sliding piece is provided with a latch which is arranged in the annular groove.

Further, the spanner comprises a fixing part and a connecting part, the fixing part is hinged and fixed with the inside of the shell, the ultrasonic knife further comprises a telescopic rod, one end of the telescopic rod is hinged with the connecting part, and the other end of the telescopic rod is hinged with the sliding part.

Further, a spring is sleeved on the trigger rod, and the spring is abutted with the switch.

The ultrasonic blade further comprises: the ultrasonic driving system comprises a rectifying and filtering circuit, an inverter, a transformer, a transducer, an ultrasonic cutter bar, a PWM driving circuit and a voltage and current detection feedback circuit, wherein the input end of the rectifying and filtering circuit is connected with a power supply, the input end of the inverter is connected with the rectifying and filtering circuit, the input end of the transformer is connected with the inverter, the input end of the transducer is connected with the transformer, the ultrasonic cutter bar is electrically connected with the transducer, the PWM driving circuit is connected with the input end of the inverter, the input end of the PWM driving circuit is connected with the voltage and current detection feedback circuit, and the input end of the voltage and current detection feedback circuit is also electrically connected with the transducer; the negative pressure generation control circuit comprises a photoelectric coupler and a switch which are connected in series, wherein a light emitting diode of the photoelectric coupler is arranged in the voltage and current detection feedback circuit, a photosensitive tube of the photoelectric coupler is connected in series with the switch, the photosensitive tube and the switch are arranged on an input circuit of the negative pressure generation device, and when the photosensitive tube and the switch are opened, the negative pressure control circuit controls the negative pressure generation device to be opened.

Compared with the prior art, the utility model has the advantages that the trigger rod is arranged on the pulling piece, the operation is carried out by pressing the pulling piece, and the switch is synchronously triggered to smoke without executing the operation of starting the smoking button, so that the problem of inconvenient starting of the smoking function of the ultrasonic knife with the smoking function in the prior art is perfectly solved; meanwhile, by arranging the negative pressure generation control circuit, when cutting is not needed and clamping is carried out by only pressing the wrenching piece, the negative pressure generation control circuit is in a closed state and can not be opened, so that the clamping function of the ultrasonic knife can be reserved, the actual use requirement of the ultrasonic knife is greatly facilitated, and the problem that the smoking function of the ultrasonic knife with the smoking function is inconvenient to open in the prior art is perfectly solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of an ultrasonic blade of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A;

FIG. 3 is a schematic view of the hose coupling and swivel joint block portion of the present utility model;

fig. 4 is a block diagram of the control system of the ultrasonic blade of the present utility model.

1. A housing; 11. an annular clamping groove; 2. a rotation knob; 21. a smoking chamber; 22. rotating the clamping block; 23. a clamp ring body; 24. an annular opening; 3. an outer sleeve; 31. a smoking port; 4. an inner sleeve; 5. a spanner; 51. a trigger lever; 52. a fixing part; 53. a connection part; 54. a telescopic rod; 55. a spring; 6. a smoking pathway; 7. a smoke discharging hose; 8. a switch; 9. a hose receiving plate; 91. an annular chamber; 10. a ball; 12. a seal ring; 13. a slider; 14. connecting sleeves; 141. an annular groove; 131. and (5) clamping teeth.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The utility model provides an ultrasonic knife with a smoking function, which is shown in the accompanying drawings 1 and 2, and comprises a shell 1, a rotary knob 2, an outer sleeve 3, an inner sleeve 4 and a spanner 5.

In the utility model, the spanner 5 is used for driving the inner sleeve 4 to slide in the outer sleeve 3, a gap is formed between the outer sleeve 3 and the inner sleeve 4, the gap is used as a smoking channel 6, and a smoking port 31 is arranged on one side of the outer sleeve 3 close to the cutter head. In addition, fixed connection between knob 2 and the outer tube 3 is equipped with in the knob 2 with the smoking cavity 21 of smoking passageway 6 intercommunication, through this smoking cavity 21, smog and flue gas can further convey to smoke discharging hose 7, and smoke discharging hose 7 links to each other with smoking cavity 21 outside to connect negative pressure generating device, this negative pressure generating device helps to produce the negative pressure, makes smog and flue gas can be taken out smoothly.

Further, the rotary knob 2 includes a rotary clamping block 22 disposed in the housing 1, an annular clamping groove 11 is disposed in the housing 1, and the rotary clamping block 22 is provided with a clamping ring body 23, which is clamped with the annular clamping groove 11, so that the rotary clamping block 22 can rotate in the housing 1 and keep stable. Inside rotatory joint piece 22, be equipped with smoking cavity 21, aim at providing a space of connecting smoking passageway 6, the rotatory joint piece 22 outside is equipped with hose nipple 9 for with smoking cavity 21 intercommunication and external exhaust hose 7, be rotatory connection between hose nipple 9 and the rotatory joint piece 22, when rotatory joint piece 22 is rotatory like this, hose nipple 9 can not rotate thereupon, keeps the connected state.

Specifically, the hose connection plate 9 is of an annular structure, and is sleeved on the outer side of the rotary clamping block 22, an annular chamber 91 is arranged in the hose connection plate 9 and is connected with the smoke discharging hose 7, an annular opening 24 is further formed in the rotary clamping block 22 and corresponds to the annular chamber 91 in the hose connection plate 9, and the annular chamber 91, the smoke discharging chamber 21 and the smoke discharging hose 7 in the hose connection plate 9 are connected through the annular opening 24.

The above improvement further expands the structure of the swivel knob 2, enabling communication with the smoking chamber 21 and the smoke evacuation hose 7. Thus, through the operation of the rotary knob 2, the smoke and the fume can be smoothly extracted, and the more efficient and convenient smoking function is realized.

Further, as shown in fig. 2 and 3, a pair of corresponding first mounting grooves and a pair of corresponding second mounting grooves are provided between the hose reel 9 and the rotary clamping block 22, the first mounting grooves are provided with balls 10 therein, the second mounting grooves are provided with sealing rings 12 therein, the balls 10 are provided in the first mounting grooves, and the purpose of the balls 10 is to provide support and smooth rotary motion, and the balls 10 roll in the first mounting grooves in the rotary clamping block 22, so that motion friction and resistance are reduced, and the hose reel 9 can be in seamless rotary connection with the rotary clamping block 22. The second mounting groove is internally provided with a sealing ring 12 for ensuring the sealing of the joint between the hose connecting disc 9 and the rotary clamping block 22, and the sealing ring 12 has the function of preventing smoke and fume from leaking from the joint between the hose connecting disc 9 and the rotary clamping block 22 and ensuring the normal operation of the smoke sucking function. The connection and sealing properties between the hose nipple 9 and the swivel joint block 22 are further optimized by the ball 10 being added in the first mounting groove and the sealing ring 12 in the second mounting groove. The structural design ensures the normal operation of the smoking function and improves the reliability and performance stability of the product.

The ultrasonic knife further comprises a connecting sleeve 14, a sliding piece 13 and a telescopic rod 54, wherein the connecting sleeve 14 is fixedly sleeved on the inner sleeve 4, an annular groove 141 is formed in the outer side of the connecting sleeve, the connecting sleeve is concentric with the inner sleeve 4, the sliding piece 13 is provided with a latch 131, the latch 131 is positioned in the annular groove 141 of the connecting sleeve 14 to clamp the sliding piece 13 on the connecting sleeve 14, the sliding piece 13 and the connecting sleeve 14 can be connected with each other to drive the connecting sleeve 14 to slide, the inner sleeve 4 is driven to slide, the inner sleeve 4 and the outer sleeve 3 slide relatively to generate a shearing effect, and meanwhile, normal rotation of the connecting sleeve 14 is guaranteed (the connecting sleeve 14 needs to rotate along with the inner sleeve and the outer sleeve at any time to adjust positions in the use process of the ultrasonic knife).

The spanner 5 comprises a fixing part 52 and a connecting part 53, the fixing part 52 is hinged and fixed with the inside of the shell 1, the connecting part 53 is hinged with one end of a telescopic rod 54, and the other end of the telescopic rod 54 is hinged with the sliding part 13, so that when the spanner 5 is pressed, the spanner 5 rotates by taking the fixing part 52 as a fulcrum, the sliding part 13 is driven to slide backwards through the telescopic rod 54, and the inner sleeve 4 is driven to slide inwards to perform operation.

The shell 1 is also internally provided with a switch 8 for controlling the start and stop of the negative pressure generating device, the switch 8 is used for controlling the running state of the negative pressure generating device, the operation of the negative pressure generating device can be started or stopped, the corresponding trigger rod 51 corresponding to the switch 8 is arranged on the pulling piece 5, the trigger rod 51 is sleeved with a spring 55, the spring 55 is contacted with the switch 8, the trigger rod 51 is contacted with the switch 8 through the spring 55, when the pulling piece 5 is pressed, the trigger rod 51 moves towards the switch 8 along with being driven, the spring 55 can apply force to the switch 8, the trigger rod 51 is known to be completely abutted with the switch 8, the switch 8 is smoothly opened, and the negative pressure generating device is opened and smoking work is performed.

Further, in order to better control the start and stop of the negative pressure generating device, the utility model further provides a group of negative pressure generating control circuits on the ultrasonic knife system, referring to fig. 4, the working principle of the negative pressure generating control circuits is described below, the ultrasonic knife comprises an ultrasonic driving system, the ultrasonic driving system is the prior art, the ultrasonic driving system is not described in detail in the embodiment, only basic modules are described, for those skilled in the art, the basic modules of the ultrasonic driving system are all common general knowledge in the prior art, wherein the basic modules of the ultrasonic driving system comprise a rectifying and filtering circuit, an inverter, a transformer, a transducer, an ultrasonic knife bar, a PWM driving circuit and a voltage and current detection feedback circuit, the input end of the rectifying and filtering circuit is connected to a power supply for converting alternating current provided by the power supply into direct current, the input end of the inverter is connected with the rectifying and filtering circuit, the inverter is responsible for converting direct current into alternating current signals, the input end of the transformer is connected with the inverter, the transformer is used for adjusting voltage and current, the input end of the transducer is connected with the transformer, the ultrasonic cutter bar is electrically connected with the transducer, the transducer converts electric energy into ultrasonic energy and transmits the ultrasonic energy to the ultrasonic cutter bar, the ultrasonic cutter bar is electrically connected with the transducer, the ultrasonic cutter bar is a tool for cutting or vibrating, the ultrasonic energy provided by the transducer works, the PWM driving circuit is connected with the input end of the inverter, the PWM driving circuit controls the frequency and the duty ratio of alternating current signals output by the inverter according to control signals, the input end of the PWM driving circuit is connected with the voltage and current detection feedback circuit, the circuit is used for detecting the voltage and the current signals so as to feed back to the PWM driving circuit for control, the input end of the voltage and current detection feedback circuit is also connected with the transducer so as to monitor the working state and performance of the transducer in real time.

The negative pressure generation control circuit comprises a photoelectric coupler and a switch which are connected in series, wherein a light emitting diode of the photoelectric coupler is arranged on a voltage current detection feedback circuit, a photosensitive tube of the photoelectric coupler is connected with the switch in series, the photosensitive tube and the switch are arranged on an input circuit of the negative pressure generation device, when the photosensitive tube and the switch are both opened, the negative pressure generation device is controlled to be opened, whether an ultrasonic driving system is started to operate or not is sensed through the photoelectric coupler, when the ultrasonic driving system is electrified to operate, an ultrasonic cutter bar cuts, and current is generated in the ultrasonic driving system at the moment, the light emitting diode of the photoelectric coupler is synchronously lightened, the photosensitive tube is conducted at the moment, and meanwhile, the switch is pressed to be closed, so that the negative pressure generation device is opened by a working power supply to provide negative pressure, smoking work is carried out while cutting, and the design has the advantages that: when cutting is not needed, namely, the ultrasonic drive system does not supply power to the ultrasonic cutter bar, the photosensitive tube is not conducted, the negative pressure generation control circuit is in a closed state, the trigger rod 51 synchronously triggers the switch 8 even if the spanner 5 is pressed, the negative pressure generation control circuit is not opened, so that the clamping function of the ultrasonic cutter can be reserved, smoking is not carried out when the ultrasonic cutter is only clamped, and the influence on the operation environment is avoided.

In summary, the utility model provides a novel ultrasonic knife with a smoking function, which is characterized in that a trigger rod is arranged on a pulling piece, and a switch is synchronously triggered to smoke when the pulling piece is pressed to perform operation, so that the operation of starting a smoking button is not needed, and the problem of inconvenient starting of the smoking function of the ultrasonic knife with the smoking function in the prior art is perfectly solved; meanwhile, by arranging the negative pressure generation control circuit, when cutting is not needed and clamping is carried out by only pressing the wrenching piece, the negative pressure generation control circuit is in a closed state and can not be opened, so that the clamping function of the ultrasonic knife can be reserved, the actual use requirement of the ultrasonic knife is greatly facilitated, and the problem that the smoking function of the ultrasonic knife with the smoking function is inconvenient to open in the prior art is perfectly solved.

The foregoing description of the preferred embodiment of the utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (10)

1. The utility model provides an ultrasonic knife with smoking function, its characterized in that includes casing (1), rotatory button (2), outer tube (3), interior sleeve pipe (4) and spanner (5), spanner (5) are used for driving interior sleeve pipe (4) are in slip in outer tube (3), gap between outer tube (3) and interior sleeve pipe (4) is smoking passageway (6), rotatory button (2) with fixed connection between outer tube (3), and be equipped with in rotatory button (2) with smoking cavity (21) of smoking passageway (6) intercommunication, smoking cavity (21) external intercommunication has smoke discharging hose (7), smoke discharging hose (7) external negative pressure generating device, still be equipped with in casing (1) be used for controlling switch (8) that negative pressure generating device started and stopped, spanner (5) be equipped with trigger lever (51) that switch (8) correspond.

2. The ultrasonic knife according to claim 1, characterized in that the rotary knob (2) comprises a rotary clamping block (22) arranged in the shell (1), an annular clamping groove (11) is formed in the shell (1), the rotary clamping block (22) is provided with a clamping ring body (23) clamped in the annular clamping groove (11), the rotary clamping block (22) is internally provided with the smoking chamber (21), a hose clamping disc (9) communicated with the smoking chamber (21) is arranged outside the rotary clamping block (22), the hose clamping disc (9) is connected with the smoke discharging hose (7), and the hose clamping disc (9) is rotationally connected with the rotary clamping block (22).

3. The ultrasonic knife according to claim 2, characterized in that the hose connection disc (9) is annular, the hose connection disc (9) is sleeved outside the rotary clamping block (22), an annular cavity (91) connected with the smoke discharging hose (7) is arranged in the hose connection disc (9), an annular opening (24) is formed in the rotary clamping block (22), and the annular cavity (91) corresponds to the annular opening (24).

4. An ultrasonic blade according to claim 3, wherein a pair of corresponding first mounting grooves and a pair of corresponding second mounting grooves are provided between the hose nipple (9) and the rotary clamping block (22), the first mounting grooves are provided with balls (10), and the second mounting grooves are provided with sealing rings (12).

5. Ultrasonic blade according to claim 1, characterized in that the ultrasonic blade further comprises a slide (13), which slide (13) is slidably arranged in the housing (1) in the axial direction of the inner sleeve (4), which slide (13) is fixed to the inner sleeve (4), and which spanner (5) is in driving connection with the slide (13).

6. Ultrasonic blade according to claim 5, characterized in that it further comprises a connecting sleeve (14), said connecting sleeve (14) being fixedly sleeved on said inner sleeve (4), the outside of said connecting sleeve (14) being connected with said slider (13).

7. Ultrasonic blade according to claim 6, characterized in that the outer side of the connecting sleeve (14) is provided with an annular groove (141), the annular groove (141) being concentric with the inner sleeve (4), the slider (13) being provided with a tooth (131), the tooth (131) being placed in the annular groove (141).

8. The ultrasonic blade according to claim 5, wherein the pulling member (5) comprises a fixing portion (52) and a connecting portion (53), the fixing portion (52) is hinged and fixed with the inside of the housing (1), the ultrasonic blade further comprises a telescopic rod (54), one end of the telescopic rod (54) is hinged with the connecting portion (53), and the other end of the telescopic rod (54) is hinged with the sliding member (13).

9. Ultrasonic blade according to claim 1, characterized in that the trigger lever (51) is provided with a spring (55), which spring (55) abuts against the switch (8).

10. The ultrasonic blade of claim 1, the ultrasonic knife is characterized by further comprising:

The ultrasonic driving system comprises a rectifying and filtering circuit, an inverter, a transformer, a transducer, an ultrasonic cutter bar, a PWM driving circuit and a voltage and current detection feedback circuit, wherein the input end of the rectifying and filtering circuit is connected with a power supply, the input end of the inverter is connected with the rectifying and filtering circuit, the input end of the transformer is connected with the inverter, the input end of the transducer is connected with the transformer, the ultrasonic cutter bar is electrically connected with the transducer, the PWM driving circuit is connected with the input end of the inverter, the input end of the PWM driving circuit is connected with the voltage and current detection feedback circuit, and the input end of the voltage and current detection feedback circuit is also electrically connected with the transducer;

The negative pressure generation control circuit comprises a photoelectric coupler and a switch which are connected in series, wherein a light emitting diode of the photoelectric coupler is arranged in the voltage and current detection feedback circuit, a photosensitive tube of the photoelectric coupler is connected in series with the switch, the photosensitive tube and the switch are arranged on an input circuit of the negative pressure generation device, and when the photosensitive tube and the switch are opened, the negative pressure generation control circuit controls the negative pressure generation device to be opened.