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Rotatable biopsy forceps device avoiding tearing

A technology of biopsy forceps and a rotating device, which is applied in the field of medical devices, can solve the problems of inconvenient operation of lasso, and achieve the effect of improving operation experience, good surgical experience, and avoiding tissue tearing

Pending Publication Date: 2019-08-16
WILSON INSTR SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent increases operational flexibility by rotating the lasso, but the lasso itself is inconvenient to operate

Method used

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  • Rotatable biopsy forceps device avoiding tearing
  • Rotatable biopsy forceps device avoiding tearing
  • Rotatable biopsy forceps device avoiding tearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment one: see figure 2 , Figure 4 , Figure 8 and Figure 9

[0033] The pliers assembly includes two mutually engaging first pliers 1, the second pliers 2, and a large cylindrical rivet 3 for fixing; the transmission assembly includes a connecting piece 4 connecting the first pliers 1 and the second pliers 2 Two pieces, a small pull rod 5 for fixing the connecting piece 4, a steel wire rope 7 welded in the inner hole of the small pull rod 5, a pull rod 11 connecting the steel wire rope 7 and a pull ring 12, a pull ring 12 fixing the pull rod, and the rotating assembly includes a connecting support frame 6 and The outer sheath tube 8 of the rotating device 10, the support frame 6 riveted with the first pliers head 1 and the second pliers head 2 through a large rivet 3, and the rotating device 10 that can rotate around the axis; the handle operation part includes a fixed pull rod 11 and the cover plate 9 of the rotating device 10, the annular pliers ring 13 t...

Embodiment 2

[0034] Embodiment two: see Figure 5

[0035] The present invention processing and assembling concrete steps are as follows:

[0036]1. When processing the pliers, the demoulding of the mold will cause certain unevenness on the opposite surfaces of the first pliers 1 and the second pliers 2 . In the present invention, there is an included angle of 1° between the first pliers 1 and the second pliers 2 after engagement, so that the engagement of the pliers will not be affected by the unevenness of the processed surface. It can avoid the rework of parts after processing, and reduce the scrap rate of parts when the pliers cannot be fully engaged after assembly.

[0037] 2. When the first pliers 1, the second pliers 2, and the support frame 6 are riveted and assembled with large rivets 3, the cutting edges of the first pliers 1 and the second pliers 2 are matched and positioned, and the first pliers The inner edge surface of the head 1 and the outer edge surface of the second cl...

Embodiment 3

[0039] The specific operation steps are as follows:

[0040] 1. The operating physician grasps the outer sheath tube 8 of the device with one hand, and the thumb of the other hand passes through the ring of the forceps handle 14, and clamps the forceps ring 13 with the index finger and middle finger. The closed first forceps head 1 and the second forceps head 2 are sent into the forceps channel, and then the outer sheath tube 8 is pushed forward to send the head end of the biopsy forceps into the suspicious lesion of the human body through the forceps channel of the endoscope.

[0041] 2. Through endoscopic image observation and endoscopic movement, align the tip of the biopsy forceps with the suspicious lesion tissue. The operating physician clamps the circular ring of the forceps handle 14 with his thumb, and clamps the forceps ring 13 with his forefinger and middle finger to apply force forward. The pull ring 12 fixed inside the clamp ring 13 moves accordingly, and the pul...

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Abstract

The invention relates to the technical field of medical devices, and in particular, relates to a rotatable biopsy forceps device avoiding tearing, wherein the device comprises a first forceps head anda second forceps head which can be meshed with each other. The device is characterized by also including a connecting piece for connecting the first forceps head and the second forceps head, a smallpull rod for fixing the connecting piece, a steel wire rope arranged in an inner hole of the small pull rod, a pull rod for connecting the steel wire rope with a pull ring, and the pull ring for fixing the pull rod. Compared with the prior art, the device has the advantages that two cutting edges of the forceps heads can move a distance after contacting, and compared with a fact that original biopsy forceps heads cannot continue to move after contacting, continuous movement of the cutting edges can ensure the complete removal of tissues and tissue tearing is avoided; through dialing a dial sheet on a rotating device, the rotating force is transmitted to an external sheath pipe by the rotating device, and a support frame is driven to rotate by the external sheath pipe immediately. Because the support frame and the forceps heads are riveted together, the forceps heads can be driven to rotate.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a rotatable biopsy forceps device capable of avoiding tearing. Background technique [0002] Diagnosis and treatment under endoscopy with biopsy forceps is a very common medical examination and treatment method at present. Enter the human body through the endoscope, locate the suspicious lesion position from the image, grab the suspicious lesion tissue, perform pathological biopsy and cytological examination on it, or directly extract the lesion tissue. It has the advantages of small wound, few surgical complications, and little impact on patients. However, at present, the biopsy forceps are sampled by the relative occlusal of the blade surfaces of the jaws during use, and high precision is required for the cooperation of the two jaws during the production and assembly process. However, the parts of the pliers are small, and slight processing errors will affect the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/06A61B10/04
CPCA61B10/06A61B10/04
Inventor 钱建洋黄新
Owner WILSON INSTR SHANGHAI
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