CN215129650U - Ultrasonic knife - Google Patents

Abstract

The utility model discloses an ultrasonic knife, which comprises a handle, an ultrasonic knife bar, a knife head, an aspirator head, a hard aspirating tube, a push-pull button, a connecting rod, a joint and a sliding tube, wherein one end of the ultrasonic knife bar is fixed on the handle, and the other end is fixed with the knife head; one end of the hard suction tube is fixedly connected with the head of the suction device, and the other end of the hard suction tube is connected with the joint through threads; the sliding tube is arranged on the ultrasonic cutter bar, the hard suction tube is arranged in the sliding tube, and the hard suction tube is connected with the sliding tube in a sliding manner; when the hard suction pipe slides to a first limit position along the slide pipe towards the tool bit direction, the suction head is positioned outside the slide pipe and above the tool bit; when the hard suction tube slides to a second limit position along the slide tube towards the handle, the suction head is positioned in the slide tube. The utility model discloses install ultrasonic knife and aspirator head together, form the efficiency of two unifications, avoid frequently sending out and switch ultrasonic knife and aspirator head.

Description

Ultrasonic knife

Technical Field

The utility model relates to an ultrasonic scalpel, which belongs to the technical field of medical instruments.

Background

With the advent of the minimally invasive age, laparoscopic surgery has taken a leading position in surgical operations, and certainly, the surgical level has taken a leading position, and suitable surgical instruments can also play a role with half the effort. The ultrasonic knife is the most commonly used operating instrument for the laparoscope of the urology surgery, but in the practical process, the ultrasonic knife is found to generate smoke and seepage when cutting tissues in the operation, the suction of the suction apparatus needs to be switched, the ultrasonic knife and the suction apparatus need to be switched frequently, and the operation time and the continuity of the operation are delayed.

Current chinese patent 201220499068.5 discloses a take supersound sword of aspirator, including handle portion and sword head portion, the sword head portion includes activity sword head and the sheath of cover on the activity sword head, the tail end and the handle portion of sheath are connected, handle portion be equipped with the tail end threaded connection of activity sword head be used for driving the transducer of activity sword head high frequency vibrations, the sheath includes inner sheath and the sheath of cover on the inner sheath, leave the clearance between inner sheath and the sheath and form and attract the passageway, the front end of sheath is provided with the drainage entry that is linked together with attracting the passageway, and the rear portion of sheath is provided with the drainage export that is linked together with attracting the passageway. The knife sheath is provided with a suction channel formed by an inner sheath and an outer sheath, so that surgical operation substances are sucked from an affected part to the outside of the body, and the visual field definition of the endoscope and the working efficiency of the ultrasonic knife head are improved. The suction channel is directly arranged on the sheath, which is inconvenient for cleaning the suction channel.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects existing in the prior art, the utility model provides an ultrasonic knife which does not need to be switched between an ultrasonic knife and an aspirator.

The technical scheme is as follows: in order to achieve the above object, the utility model adopts the following technical scheme:

an ultrasonic knife comprises a handle, an ultrasonic knife bar, a knife head, a suction head, a hard suction tube, a push-pull button, a connecting rod, a joint and a sliding tube, wherein one end of the ultrasonic knife bar is fixed on the handle, and the other end of the ultrasonic knife bar is fixed with the knife head; one end of the hard suction tube is fixedly connected with the head of the suction device, and the other end of the hard suction tube is connected with the joint through a connecting tube; the sliding tube is arranged on the ultrasonic cutter bar, the hard suction tube is arranged in the sliding tube, and the hard suction tube is connected with the sliding tube in a sliding manner; the suction head and the cutter head are positioned on the same side, and the joint and the handle are positioned on the same side; the sliding tube is provided with an L-shaped push-pull limiting hole, one end of the connecting rod is fixedly connected with the hard suction tube, the other end of the connecting rod extends out of the L-shaped push-pull limiting hole to be fixedly connected with a push-pull button, and the push-pull button is in sliding connection with the L-shaped push-pull limiting hole; when the push-pull button slides to a first limit position along the L-shaped push-pull limiting hole in the direction of the cutter head, the aspirator head is positioned outside the sliding tube and above the cutter head; when the push-pull button slides to a second limit position along the L-shaped push-pull limit hole in the direction of the handle, the aspirator head is positioned in the slide pipe.

Preferably: the hard suction tube comprises a connecting column and a reset pre-tightening spring, wherein one end of the connecting column is fixedly connected with the hard suction tube, the other end of the connecting column is connected with one end of the reset pre-tightening spring, and the other end of the reset pre-tightening spring is fixedly connected with the handle.

Preferably: the connecting rod is fixedly arranged on the connecting pipe.

Preferably: the joint is connected with a negative pressure device through a conduit.

Preferably: the conduit is a plastic hose.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses install ultrasonic knife and aspirator head together, form the efficiency of two unifications, avoid frequently taking place to switch ultrasonic knife and aspirator head, hinder the continuity of operation time and operation.

Drawings

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

Fig. 2 is a schematic structural view of a portion a in fig. 1.

Detailed Description

The invention will be further elucidated with reference to the drawings and specific embodiments, it being understood that these examples are intended to illustrate the invention only and are not intended to limit the scope of the invention, and that modifications to the various equivalent forms of the invention, which may occur to those skilled in the art after reading the present invention, fall within the scope of the invention as defined in the claims appended hereto.

An ultrasonic knife comprises a handle 11, an ultrasonic knife bar 12, a knife head 13, a suction head 21, a hard suction tube 22, a connector 24 and a sliding tube 3, wherein one end of the ultrasonic knife bar 12 is fixed on the handle 11 through threads, and the other end of the ultrasonic knife bar 12 is fixed with the knife head 13 through threads, so that the ultrasonic knife bar 12 and the handle 11 can be conveniently detached. And the ultrasonic knife bar 12 and the knife head 13 are convenient to detach, and the knife head 13 is convenient to replace. One end of the hard suction tube 22 is fixedly connected with the suction head 21, and the other end of the hard suction tube is connected with the joint 24 through threads, so that the joint 24 is convenient to disassemble, the hard suction tube 22 is generally made of stainless steel, and the hard suction tube 22 is communicated with the suction head 21. The sliding tube 3 is arranged on the ultrasonic knife bar 12, the sliding tube 3 is also made of stainless steel, the hard suction tube 22 is arranged in the sliding tube 3, the hard suction tube 22 is connected with the sliding tube 3 in a sliding mode, the difference between the outer diameter of the hard suction tube 22 and the inner diameter of the sliding tube 3 is 0.5-2mm, and the hard suction tube 22 can slide in the sliding tube 3 conveniently. As shown in fig. 1, the aspirator tip 21 is located on the same side as the cutter head 13, and the joint 24 is located on the same side as the handle 11. When the hard suction tube 22 slides along the slide tube 3 to the first limit position in the direction of the cutter head, the suction head 21 is positioned outside the slide tube 3 and above the cutter head. When the hard suction tube 22 slides along the slide tube 3 to the second limit position in the direction of the handle 11, the suction head 21 is positioned in the slide tube 3. The joint 24 is connected with the negative pressure device through a catheter, and as the joint 24, the hard suction tube 22 and the suction head 21 are sequentially communicated, after the negative pressure device is started, negative pressure is sequentially generated on the joint 24, the hard suction tube 22 and the suction head 21, when the suction head 21 faces to an area to be absorbed, smoke or liquid can be sucked through the suction head 21 and then sequentially enters a pollutant storage area of the negative pressure device through the hard suction tube 22 and the joint 24. The conduit is a plastic hose. After the joint 24 is removed, the suction unit head 21 and the hard suction tube 22 can be pulled out in the direction of the cutter head 13 along the slide tube 3, thereby facilitating the cleaning of the suction unit head 21 and the hard suction tube 22.

The device is also provided with a push-pull mechanism, the push-pull mechanism comprises a push-pull button 23 and a connecting rod, an L-shaped push-pull limiting hole 31 is formed in the sliding tube 3, one end of the connecting rod is fixedly connected with the hard suction tube 22, the other end of the connecting rod extends out of the L-shaped push-pull limiting hole 31 to be fixedly connected with the push-pull button 23, and the push-pull button 23 is in sliding connection with the L-shaped push-pull limiting hole 31; when the push-pull button 23 slides to a first limit position (the turning position of the L-shaped push-pull limit hole 31) along the L-shaped push-pull limit hole 31 in the direction of the cutter head, the aspirator head 21 is positioned outside the sliding tube 3 and above the cutter head; when the push-pull button 23 slides along the L-shaped push-pull limiting hole 31 to the second limit position along the direction of the handle 11, the aspirator head 21 is positioned in the slide tube 3, and the push-pull button 23 can facilitate the push-pull of the hard aspirator tube 22. Through the arrangement of the L-shaped push-pull limiting hole 31, when the push-pull button 23 is pushed, the stroke distance of the hard suction tube 22 is limited by the length of the L-shaped push-pull limiting hole 31, and further the sliding length of the hard suction tube 22 is limited, so that the distance that the suction head 21 extends out of the sliding tube 3 and the distance that the suction head retracts into the sliding tube 3 are limited. The distance that the suction unit head 21 extends out of the slide pipe 3 affects whether the suction unit head 21 can well suck the smoke and the exudate, and therefore, the length design of the L-shaped push-pull limiting hole 31 is extremely important. In addition, due to the special shape of the L-shaped push-pull limiting hole 31, the push-pull button 23 can be clamped at the corner of the L-shaped push-pull limiting hole 31, the push-pull button 23 is prevented from moving, and smoke and liquid are better absorbed.

The hard suction tube is characterized by further comprising a reset pre-tightening mechanism, the reset pre-tightening mechanism comprises a connecting column 26 and a reset pre-tightening spring 27, one end of the connecting column 26 is fixedly connected with the hard suction tube 22, the other end of the connecting column is connected with one end of the reset pre-tightening spring 27, and the other end of the reset pre-tightening spring 27 is fixedly connected with the handle 11. When the push-pull button 23 moves towards the cutter head, the reset pre-tightening spring 27 is stretched, when the push-pull button 23 is clamped at the corner of the L-shaped push-pull limiting hole 31, the elastic force applied to the hard suction tube 22 by the reset pre-tightening spring 27 better clamps the push-pull button 23 at the corner of the L-shaped push-pull limiting hole 31, and the push-pull button 23 is prevented from sliding out from the corner of the L-shaped push-pull limiting hole 31 when the handle moves or overturns. When the suction is not needed, the push-pull button 23 is pulled out to the corner of the L-shaped push-pull limiting hole 31, the hard suction tube 22 is pulled back by the elastic force of the return pre-tightening spring 27, and the suction head 21 is pulled into the slide tube 3.

The connecting rod is fixedly arranged on the connecting pipe 25, so that the acting force of the push-pull button 23 directly acts on the connecting pipe 25, and the phenomenon that the acting force of the push-pull button 23 acts on the joint 24 or the hard suction pipe 22 to damage the joint 24 or the hard suction pipe 22 is avoided.

When the suction device is used, the push-pull button 23 is pulled towards the handle 11, so that the hard suction tube 22 is driven to slide in the sliding tube 3, and the movement of the hard suction tube 22 drives the movement of the suction device head 21. When the push-pull button 23 is pushed and pulled to the leftmost end (end near the handle 11) of the L-shaped push-pull restriction hole 31, it is restricted, and the suction head 21 is located at the second limit position, and at this time, the suction head 21 is located inside the slide pipe 3. When the suction head 21 is used, the push-pull button 23 is pulled in the direction of the cutter head 13, and the hard suction tube 22 is further driven to slide in the slide tube 3, and the movement of the hard suction tube 22 drives the movement of the suction head 21. When the push-pull button 23 is pushed and pulled to the rightmost end (the end close to the cutter head 13 and the turning part of the L-shaped push-pull limiting hole 31) of the L-shaped push-pull limiting hole 31, the position is limited, the suction head 21 is positioned at the first limit position, the suction head 21 is positioned outside the sliding tube 3 and above the cutter head 13, at the moment, the negative pressure device is started, the negative pressure device works to generate negative pressure, and then negative pressure is generated in the pipeline of the catheter, the hard suction tube 22 and the suction head 21. Then, the ultrasonic device is started to drive the cutter head 13 to work, and when smoke and seepage are generated, the smoke and the seepage are sucked away through the negative pressure action of the suction head 21, so that the switching of the ultrasonic knife and the suction head is avoided.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (5)

1. An ultrasonic blade, characterized by: the suction device comprises a handle (11), an ultrasonic cutter bar (12), a cutter head (13), a suction head (21), a hard suction tube (22), a push-pull button (23), a connecting rod, a joint (24) and a sliding tube (3), wherein one end of the ultrasonic cutter bar (12) is fixed on the handle (11), and the other end of the ultrasonic cutter bar is fixed with the cutter head (13); one end of the hard suction tube (22) is fixedly connected with the suction device head (21), and the other end of the hard suction tube is connected with the joint (24) through a connecting tube (25); the sliding tube (3) is arranged on the ultrasonic knife bar (12), the hard suction tube (22) is arranged in the sliding tube (3), and the hard suction tube (22) is connected with the sliding tube (3) in a sliding manner; the suction head (21) and the cutter head (13) are positioned on the same side, and the joint (24) and the handle (11) are positioned on the same side; an L-shaped push-pull limiting hole (31) is formed in the sliding tube (3), one end of the connecting rod is fixedly connected with the hard suction tube (22), the other end of the connecting rod extends out of the L-shaped push-pull limiting hole (31) to be fixedly connected with a push-pull button (23), and the push-pull button (23) is connected with the L-shaped push-pull limiting hole (31) in a sliding mode; when the push-pull button (23) slides to a first limit position along the L-shaped push-pull limiting hole (31) in the direction of the cutter head, the aspirator head (21) is positioned outside the sliding pipe (3) and above the cutter head; when the push-pull button (23) slides to a second limit position along the L-shaped push-pull limiting hole (31) towards the handle (11), the suction device head (21) is positioned in the sliding pipe (3).

2. The ultrasonic blade of claim 1, wherein: the hard suction tube comprises a connecting column (26) and a reset pre-tightening spring (27), wherein one end of the connecting column (26) is fixedly connected with the hard suction tube (22), the other end of the connecting column is connected with one end of the reset pre-tightening spring (27), and the other end of the reset pre-tightening spring (27) is fixedly connected with a handle (11).

3. The ultrasonic blade of claim 2, wherein: the connecting rod is fixedly arranged on the connecting pipe (25).

4. The ultrasonic blade of claim 3, wherein: the joint (24) is connected with a negative pressure device through a conduit.

5. The ultrasonic blade of claim 4, wherein: the conduit is a plastic hose.

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