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Ultrasonic surgical instrument

A surgical instrument, ultrasonic technology, applied in medical science, surgery, etc., can solve problems such as inability to achieve good results, achieve the effect of achieving convenience, improving accuracy, and preventing axial and lateral slippage

Active Publication Date: 2021-12-21
青岛健新医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tissue pad has improved grip on structures such as fascia and blood vessels with greater toughness and strength. However, when facing soft tissue parts, it is still unavoidable that the tissue falls off and slips during the closing process of the jaws.
In addition, because the contact area between the improved tissue pad and the cutter head is approximately linear contact, good results are often not achieved in hemostasis operations.
[0005] In order to solve the above problems, those skilled in the art have also explored forming the side of the cutter head into an arc-shaped structure, but it still cannot achieve good results in the hemostasis operation.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0031] see Figure 1-5 , where like reference numbers indicate like elements, Figure 1-5 A first embodiment of the ultrasonic surgical instrument of the present disclosure is shown.

[0032] The ultrasonic surgical instrument forceps head includes a sleeve assembly, a cutting head 100 , a jaw 200 and a tissue pad 300 . Wherein the sleeve assembly at least includes an inner tube 400 and an outer tube 500, wherein the inner tube 400 is installed inside the outer tube 500 and can move relative to the axial direction, and the cutter head 100 is located in the inner tube 400 and can move relative to the inner tube 400. The axial ultrasonic vibration of the inner tube 400, the jaws 200 are respectively hinged on the front ends of the outer tube 500 and the inner tube 400, when the trigger (not shown) of the handle of the ultrasonic surgical instrument is pressed, the inner tube 400 will move backward and drive the forceps Port 200 is closed. The tissue pad 300 is mounted on the up...

no. 2 approach

[0045] Figure 6-7 A second embodiment of the ultrasonic surgical instrument of the present disclosure is shown. The second embodiment is different from the first embodiment in that, on the basis of the design of the tissue pad in the first embodiment, the shape of the first surface of the tissue pad perpendicular to the axial direction of the cutter head 100 is modified. Further improvements.

[0046] Figure 6 is a top view of the ultrasonic surgical instrument, combined with Figure 6 In the axial direction of the cutter head, from near to far relative to the inner tube 400, three different positions A-A, B-B, and C-C are selected to intercept the section of the relevant tissue pad to further illustrate the design of the tissue pad.

[0047] Such as Figure 7 As shown, at the positions A-A, B-B, and C-C, the first surface of the tissue pad can be arranged as a plane, and it can be seen from its cross-sectional view that they all present a straight line shape.

[0048] ...

no. 3 approach

[0052] Figure 8 A third embodiment of the ultrasonic surgical instrument of the present disclosure is shown. The difference between the third embodiment and the second embodiment is that, on the basis of the design of the tissue pad in the second embodiment, the cross-section of the tissue pad along the axis perpendicular to the cutting head The morphology of the intersecting lines in Part 1, Part 2, and Part 3 has been further improved.

[0053] Refer to the second embodiment corresponding to Figure 6 A top view of the ultrasonic surgical instrument shown, combined with Figure 6 On the axial direction a1 of the cutter head 100, three different positions A-A, B-B, and C-C are selected from near to far relative to the cannula assembly to intercept the section of the relevant tissue pad to further illustrate the design of the tissue pad .

[0054] as a transform, such as Figure 8 As shown, at the positions A-A, B-B, and C-C, the cross section of the tissue pad 300 along...

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Abstract

The invention provides an ultrasonic surgical instrument. The ultrasonic surgical instrument comprises a cannula assembly, a cutter head, a jaw, and a tissue pad; the tissue pad has a first surface and a second surface opposite the first surface; the first surface of the tissue pad faces the cutter head; the first surface of the tissue pad is in a non-planar design and is provided with a first part, a second part and a third part from far to near relative to the cannula assembly in the axial direction of the cutter head; and the average thickness of the second part is minimum. The content disclosed by the invention is helpful for realizing one of the following effects that a better tissue guiding effect is achieved, the situation that tissues fall off in the operation to influence the progress of the operation is avoided, and misoperation in the operation is avoided.

Description

technical field [0001] The present disclosure relates to an ultrasonic medical instrument, and more particularly, to an ultrasonic surgical instrument. Background technique [0002] With the development of medical technology, surgical operations are becoming more and more diversified. Ultrasonic surgical instruments are often used in surgical operations to cut and coagulate various tissues. Since ultrasonic surgical instruments convert electrical energy into mechanical energy, and integrate cutting, coagulation, grasping, and separation, and have the advantages of fast cutting speed, good hemostasis effect, and simple operation, they are increasingly used in various In endoscopic surgery, such as laparoscopy, prostatectomy, cystoscopy, hysteroscopy and other operations. [0003] In the prior art, an ultrasonic surgical instrument usually includes main parts such as a host, a transducer connected to the host, an operating handle, and a cutter head assembly connected to the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/32
CPCA61B17/320068A61B17/320092A61B2017/320074A61B2017/320072A61B2017/320094
Inventor 冯庆宇毛胜尧田浚宸江志鸿
Owner 青岛健新医疗科技有限公司
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