CN211156088U

CN211156088U - Ultrasonic knife

Info

Publication number: CN211156088U
Application number: CN201921880949.XU
Authority: CN
Inventors: 罗惠君
Original assignee: Shanghai Shengzhe Medical Technology Co ltd
Current assignee: Shanghai Shengzhe Medical Technology Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-08-04
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses an ultrasonic knife, which belongs to the field of medical appliances and comprises a shell; the cutter bar assembly comprises a cutter head and a cutter bar; the energy converter assembly is connected with one end of the cutter bar and used for providing ultrasonic waves for the cutter head through the cutter bar; the handle assembly comprises a movable part and a driving part, wherein the movable part comprises a connecting sheet and a connecting rod which are connected, the connecting sheet is connected with one end of the driving part through a first rotating shaft, the connecting rod is connected with the other end of the driving part through a second rotating shaft, the driving part is connected with the cutter bar, and the driving part is configured to drive the movable part to drive the cutter head to clamp cell tissues to be treated when the driving part moves. The utility model discloses the use of pivot has been reduced for handle components's structure is simpler, and it is more convenient to make.

Description

Ultrasonic knife

Technical Field

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

Background

With the development of medical industry, ultrasonic knives have been widely used in clinical operations for cutting blood vessels, cell tissues, etc., and the cell tissues can be denatured and coagulated by the rapid vibration of a transducer in the ultrasonic knife, and at this time, the denatured cell tissues are cut to reduce the bleeding of the cell tissues. An ultrasonic blade generally includes a blade bar assembly, a handle assembly, and a transducer assembly.

In the prior art, a handle assembly at least comprises a handle, a monkey wrench, a connecting rod and a pull sleeve. The adjustable wrench comprises a Y-shaped connecting piece, one piece of the Y-shaped connecting piece is connected with the shell through a rotating shaft, the other piece of the Y-shaped connecting piece is connected with one end of a connecting rod through the rotating shaft, and the other end of the connecting rod is connected with the pulling sleeve through the rotating shaft.

It can be seen that the handle assembly in the prior art needs to be provided with three rotating shafts to realize corresponding functions, which results in a complicated structure of the handle assembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultrasonic scalpel has reduced the use of pivot for handle components's structure is simpler, and it is more convenient to make.

As the conception, the utility model adopts the technical proposal that:

an ultrasonic blade comprising:

a housing;

the cutter bar assembly comprises a cutter head and a cutter bar;

the energy converter assembly is connected with one end of the cutter bar and used for providing ultrasonic waves for the cutter head through the cutter bar;

the handle assembly comprises a movable part and a driving part, wherein the movable part comprises a connecting sheet and a connecting rod which are connected, the connecting sheet is connected with one end of the driving part through a first rotating shaft, the connecting rod is connected with the other end of the driving part through a second rotating shaft, the driving part is connected with the cutter bar, and the driving part is configured to drive the movable part to drive the cutter head to clamp cell tissues to be treated when the driving part moves.

Preferably, the connecting piece is bent, and the connecting rod is connected with the bent part of the connecting piece.

Preferably, the driving part comprises a clamping sleeve and a sliding sleeve which are connected;

the cutting ferrule is clamped at one end of the cutter bar, the connecting piece is connected with one end of the sliding sleeve through a first rotating shaft, and the connecting rod is connected with the other end of the sliding sleeve through a second rotating shaft.

Preferably, a waist-shaped hole is formed in the sliding sleeve, a first through hole is formed in one end of the connecting piece, and the first rotating shaft penetrates through the waist-shaped hole and the first through hole, so that the connecting piece can move or rotate relative to the sliding sleeve.

Preferably, the sliding sleeve is further provided with a second through hole, one end of the connecting rod is provided with a third through hole, and the second rotating shaft penetrates through the second through hole and the third through hole, so that the connecting rod can rotate relative to the sliding sleeve.

Preferably, one side of the sliding sleeve is provided with a groove;

the movable part is arranged such that when the movable part is pulled, part of the movable part can enter the recess.

Preferably, the driving part further comprises a spring, one end of the spring is connected to the other end of the sliding sleeve, and the other end of the spring abuts against the shell.

Preferably, the device also comprises an energy switch;

the energy switch is connected with the transducer assembly and used for controlling the starting or the closing of the transducer assembly.

Preferably, the connecting sheet is bent, and the energy switch is located in a space surrounded by the connecting sheet.

Preferably, the transducer assembly is fixed within the housing.

The beneficial effects of the utility model include at least:

the ultrasonic scalpel that this embodiment provided, movable part and drive division among the handle components realize the interlock of movable part and drive division through first pivot and second pivot, compare in prior art, have reduced the use of pivot for handle components's structure is simpler, and it is more convenient to make.

In addition, the cost of the rotating shaft is high, and the handle assembly in the embodiment reduces the use of the rotating shaft, so that the cost of the handle assembly is reduced, and the cost of the ultrasonic knife is further reduced.

Drawings

Fig. 1 is a schematic structural diagram of an ultrasonic scalpel according to an embodiment of the present invention;

fig. 2 is a schematic partial structural view of an ultrasonic blade according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a handle assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a driving portion according to an embodiment of the present invention.

In the figure:

10. a housing; 20. a cutter bar assembly; 21. a cutter head; 22. a cutter bar; 30. a transducer assembly; 41. a movable portion; 411. connecting sheets; 412. a connecting rod; 42. a drive section; 421. a card sleeve; 422. a sliding sleeve; 4221. a first side surface; 4222. a third side surface; 423. a spring; 424. a waist-shaped hole; 425. a second through hole; 426. a first groove; 427. a second groove; 43. a first rotating shaft; 44. a second rotating shaft; 45. a handle portion; 50. and (4) energy switching.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment provides an ultrasonic blade, as shown in fig. 1-4, comprising a housing 10, a blade bar assembly 20, a transducer assembly 30, and a handle assembly.

Wherein the tool bar assembly 20 comprises a tool bit 21 and a tool bar 22. The transducer assembly 30 is fixedly connected to one end of the cutter bar 22 for providing ultrasonic waves to the cutter head 21 through the cutter bar 22 so that the cutter head 21 can cut cellular tissues. The handle assembly includes a movable portion 41 and a driving portion 42. The movable portion 41 includes a connecting piece 411 and a connecting rod 412, the connecting piece 411 is rotatably and slidably connected to one end of the driving portion 42 via a first rotating shaft 43, and the connecting rod 412 is rotatably connected to the other end of the driving portion 42 via a second rotating shaft 44. The driving portion 42 is fixedly connected to the knife bar 22, and the driving portion 42 is configured such that when the movable portion 41 drives the driving portion 42 to move, the driving portion 42 can drive the knife head 21 to clamp the cell tissue to be treated.

When the movable portion 41 is pulled by an external force, the connecting piece 411 pushes the connecting rod 412 connected thereto to move, so that the connecting rod 412 rotates relative to the driving portion 42 through the second rotating shaft 44, and the connecting piece 411 and the connecting rod 412 drive the driving portion 42 to move simultaneously, so that the driving portion 42 can drive the tool bit 21 to clamp the cell tissue to be treated.

In summary, in the ultrasonic blade provided in this embodiment, the movable portion 41 and the driving portion 42 in the handle assembly are linked through the first rotating shaft 43 and the second rotating shaft 44, and compared with the prior art, the use of the rotating shafts is reduced, so that the handle assembly has a simpler structure and is more convenient to manufacture.

In this embodiment, please refer to fig. 3, the connecting piece 411 may be bent, and at this time, the connecting rod 412 is connected to the bent portion of the connecting piece 411. At this time, compared with the Y-shaped connecting sheet in the prior art, the occupied space can be reduced, the space required when the connecting sheet 411 moves can also be reduced, and the volume of the ultrasonic scalpel can be further reduced.

Specifically, the connecting piece 411 may have a first end, a bent portion and a second end, wherein the first end of the connecting piece 411 is used for being rotatably connected with one end of the driving portion 42, the bent portion of the connecting piece 411 is used for being fixedly connected with the connecting rod 412, and the second end of the connecting piece 411 is used for being fixedly connected with the adjustable wrench in the movable portion 41. Wherein the adjustable wrench is used for a user to grasp and move the connection piece 411 by the adjustable wrench.

In this embodiment, referring to fig. 3, the driving portion 42 may include a cutting sleeve 421 and a sliding sleeve 422, and as shown in fig. 3, the cutting sleeve 421 is fixedly connected to one end of the sliding sleeve 422. The cutting sleeve 421 is clamped at one end of the knife bar 22, the connecting piece 411 is rotatably connected with one end of the sliding sleeve 422 through the first rotating shaft 43, and the connecting rod 412 is rotatably connected with the other end of the sliding sleeve 422 through the second rotating shaft 44. One end of the knife bar 22 can be cylindrical, and at this time, the cutting sleeve 421 can be a hollow sleeve sleeved on the cylindrical side surface, so that the cutting sleeve 421 can be sleeved on one end of the knife bar 22 to drive the knife head 21 to clamp the cell tissue to be treated. The sliding sleeve 422 may be rectangular, and at this time, one side of one end of the sliding sleeve 422 is used for connecting with the ferrule 421, and the other side is used for connecting with the connecting piece 411. The other side is a side other than the one side among sides of one end of the sliding sleeve 422.

Further, as shown in fig. 4, a kidney-shaped hole 424 is formed on the sliding sleeve 422, a first through hole is formed at one end of the connecting piece 411, and at this time, the first rotating shaft 43 is inserted into the kidney-shaped hole 424 and the first through hole, so that the connecting piece 411 can move or rotate relative to the sliding sleeve 422.

For example, the sliding sleeve 422 may have a first side surface 4221, a second side surface, a third side surface 4222 and a fourth side surface, the first side surface 4221 being opposite to the second side surface, the third side surface 4222 being opposite to the fourth side surface. The first side surface 4221 and the second side surface of the sliding sleeve 422 may be provided with a slotted hole 424, and at this time, the first rotating shaft 43 sequentially penetrates the slotted hole 424 on the first side surface 4221, the first through hole and the slotted hole 424 on the second side surface, so as to rotatably connect the connecting piece 411 with the sliding sleeve 422. It should be noted that the kidney aperture 424 can be located on the first side surface 4221 and the second side surface near the end of the ferrule 421.

Optionally, both ends of the first rotating shaft 43 may be provided with a limiting groove, and when the first rotating shaft 43 is inserted into the sliding sleeve 422 and the connecting piece 411, the limiting groove may be clamped on the sliding sleeve 422 to limit the position of the first rotating shaft 43, so as to avoid the situation that the first rotating shaft 43 slides out of the waist-shaped hole 424 and the first through hole during the use of the ultrasonic scalpel.

Still further, the sliding sleeve 422 may further have a second through hole 425, and one end of the connecting rod 412 has a third through hole, at this time, the second rotating shaft 44 is disposed through the second through hole 425 and the third through hole, so that the connecting rod 412 can rotate relative to the sliding sleeve 422.

Specifically, the first side surface 4221 and the second side surface of the sliding sleeve 422 may be provided with a second through hole 425, and at this time, the second rotating shaft 44 sequentially penetrates the second through hole 425 on the first side surface 4221, the third through hole and the second through hole 425 on the second side surface, so as to rotatably connect the connecting rod 412 with the sliding sleeve 422. It should be noted that the second through hole 425 is located at one end of the first side surface 4221 and the second side surface far from the ferrule 421.

Optionally, two ends of the second rotating shaft 44 may be provided with a limiting groove, and when the second rotating shaft 44 is inserted into the sliding sleeve 422 and the connecting rod 412, the limiting groove may be clamped on the sliding sleeve 422 to limit the position of the second rotating shaft 44, so as to avoid the situation that the second rotating shaft 44 slides out of the second through hole 425 and the third through hole in the using process of the ultrasonic scalpel.

In this embodiment, referring to fig. 4, a groove is formed on one side of the sliding sleeve 422, and when the connecting piece 411 is configured to pull the movable portion 41, a portion of the connecting piece 411 can enter the groove. The space occupied by the movable part 41 during the movement is further reduced, so that the volume required by the ultrasonic knife is reduced, and the carrying of the ultrasonic knife is facilitated. It should be noted that one side of the sliding sleeve 422 may be the third side surface 4222 of the sliding sleeve 422.

Further, referring to fig. 3 and 4, the groove on one side of the sliding sleeve 422 may include a narrower first groove 426 and a wider second groove 427. The first groove 426 can accommodate the connecting piece 411 or the connecting rod 412, and the second groove 427 can accommodate the connecting piece 411, the connecting rod 412 and the part of the connecting piece 411 connected with the connecting rod 412 at the same time. Illustratively, when first shaft 43 is slid to one end of kidney hole 424 (e.g., the right end of kidney hole 424 in FIG. 3), as shown in FIG. 3, a portion of connecting piece 411 and a portion of connecting rod 412 are located within the recess, and a portion of connecting piece 411 connected to connecting rod 412 is located outside the recess. When the first rotating shaft 43 slides to the left side of the kidney-shaped hole 424, a part of the connecting piece 411 and a part of the link 412 are positioned in the first groove 426, and a part of the connecting piece 411 and a part of the link 412 are positioned in the second groove 427, so that the space in the sliding sleeve 422 can be effectively utilized.

In this embodiment, referring to fig. 3, the driving portion 42 may further include a spring 423. One end of the spring 423 is connected to the end of the sliding sleeve 422 far away from the cutting sleeve 421, and the other end of the spring 423 abuts against the housing 10. The spring 423 provides the driving portion 42 with an automatic return function. That is, when the user pulls the movable portion 41, the sliding sleeve 422 slides and enables the spring 423 to be in the compressing device, and when the user stops pulling the movable portion 41 and does not contact the movable portion 41, the sliding sleeve 422 can be reset under the elastic force of the spring 423, so that the handle assembly is more intelligent.

Further, the inner surface of the housing 10 may be provided with an abutting groove, and the other end of the spring 423 is located in the abutting groove and abuts against the bottom of the abutting groove.

In this embodiment, as shown in fig. 2, the handle assembly may further include a handle portion 45, and the handle portion 45 is connected to the adjustable wrench in the movable portion 41 and connected to the housing 10.

In the present embodiment, with continued reference to fig. 1, the ultrasonic blade further includes an energy switch 50. The power switch 50 is coupled to the transducer assembly 30 for controlling the activation or deactivation of the transducer assembly 30.

Further, the power switch 50 is fixed on the housing 10 by means of a snap-fit, so as to improve the flexibility of mounting the power switch 50.

When the ultrasonic blade includes an energy switch 50, as shown in fig. 2, the energy switch 50 may be located in the space surrounded by the connecting piece 411. That is, the energy switch 50 can be in clearance fit with the handle assembly, so that the free space formed by the connecting sheet 411 in the handle assembly is effectively utilized, and the volume of the ultrasonic scalpel is further reduced.

In the present embodiment, the transducer assembly 30 is fixed in the housing 10, which can reduce the number of times the transducer assembly 30 is disassembled compared to the prior art in which the transducer is located outside the housing 10, thereby reducing the possibility of instability due to abrasion of the transducer assembly 30. Wherein the transducer assembly 30 includes a transducer.

When the ultrasonic scalpel provided by the embodiment is used, a user can firstly stretch the scalpel into a body cavity, and then press the adjustable wrench, so that the connecting sheet 411 and the connecting rod 412 drive the sliding sleeve 422 to move, and further drive the cutting sleeve 421 to drive the cutting head 21 to clamp the cell tissue to be treated. Then, the energy switch is pressed to make the transducer vibrate rapidly and generate ultrasonic waves to mature and denature the cell tissue, and then the cell tissue is cut, so that the bleeding is prevented when the cell tissue is cut. When the tissue is severed, the pressing of the energy switch is stopped to terminate the vibration of the transducer, after which the cutting head 21 is removed from the cavity.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An ultrasonic blade, comprising:

a housing (10);

a cutter bar assembly (20) comprising a cutter head (21) and a cutter bar (22);

a transducer assembly (30) connected to one end of the cutter bar (22) for providing ultrasonic waves to the cutter head (21) through the cutter bar (22);

handle components, including movable part (41) and drive division (42), movable part (41) including connection piece (411) and connecting rod (412) of connecting, connection piece (411) through first pivot (43) with the one end of drive division (42) is connected, connecting rod (412) through second pivot (44) with the other end of drive division (42) is connected, drive division (42) with cutter arbor (22) are connected, just drive division (42) are configured into movable part (41) drive when drive division (42) remove, drive division (42) can drive tool bit (21) centre gripping is treated cell tissue.

2. The ultrasonic blade according to claim 1, wherein the connecting piece (411) is bent, and the connecting rod (412) is connected with the bent portion of the connecting piece (411).

3. The ultrasonic blade of claim 2, wherein the drive portion (42) comprises a connected ferrule (421) and a sliding sleeve (422);

the cutting sleeve (421) is clamped at one end of the cutter bar (22), the connecting piece (411) is connected with one end of the sliding sleeve (422) through the first rotating shaft (43), and the connecting rod (412) is connected with the other end of the sliding sleeve (422) through the second rotating shaft (44).

4. The ultrasonic scalpel according to claim 3, wherein the sliding sleeve (422) is provided with a waist-shaped hole (424), one end of the connecting piece (411) is provided with a first through hole, and the first rotating shaft (43) penetrates through the waist-shaped hole (424) and the first through hole so that the connecting piece (411) can move or rotate relative to the sliding sleeve (422).

5. The ultrasonic scalpel according to claim 3 or 4, wherein the sliding sleeve (422) is further provided with a second through hole (425), one end of the connecting rod (412) is provided with a third through hole, and the second rotating shaft (44) is arranged in the second through hole (425) and the third through hole in a penetrating manner, so that the connecting rod (412) can rotate relative to the sliding sleeve (422).

6. The ultrasonic blade of claim 3, wherein one side of the sliding sleeve (422) has a groove;

the movable part (41) is configured such that when the movable part (41) is pulled, a part of the movable part (41) can enter the recess.

7. The ultrasonic blade of claim 3, wherein the drive portion (42) further comprises a spring, one end of the spring being connected to the other end of the sliding sleeve (422), the other end of the spring abutting against the housing (10).

8. The ultrasonic blade of claim 1, further comprising an energy switch;

the energy switch is connected with the transducer assembly (30) and used for controlling the on or off of the transducer assembly (30).

9. The ultrasonic blade according to claim 8, wherein the connecting piece (411) is bent, and the energy switch is located in a space surrounded by the connecting piece (411).

10. The ultrasonic blade of claim 1, wherein the transducer assembly (30) is fixed within the housing (10).