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Combined type microscopic trephine

A combined and ring saw technology, which is applied in the field of surgical instruments, can solve problems such as intraoperative damage, and achieve the effects of reducing damage, improving precision, and reducing disturbance

Active Publication Date: 2021-11-12
舟山顾鹤传骨伤医院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The large sleeve and the small sleeve in the scheme generate relative feed through threads, and when the small sleeve is ring sawed, the large sleeve also needs to rotate correspondingly, and the rotation of the large sleeve may interfere with the The body tissues of the subject undergo relative friction, causing unnecessary intraoperative damage

Method used

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  • Combined type microscopic trephine
  • Combined type microscopic trephine
  • Combined type microscopic trephine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A combined endoscopic formula trephine, such as figure 1 Shown, including large and small sleeve 2 sleeve 1, the sleeve 2 inserted in the small sleeve 1 large.

[0044] A large end portion of the sleeve having a first turning the handle 3, a first large rotation of the sleeve 1 at one end remote from the handle 3 having an arcuate wedge opening 5, the end portion of the sleeve 2 having the smaller second knob 4, a small sleeve 2 remote from the handle end of the second rotation 4 having a plurality of annular serrations 6 arranged. An outer diameter smaller than the inner diameter of the sleeve 2 of the sleeve 1 is large, the first knob and the second knob 4 3 functions to both limit, the limit position between the sleeve 2 and the large socket for the first 1 hour bottom two turn the handle 4 abuts against the top of the first knob 3, the bottom of the sleeve 2 in this case slightly beyond the bottom of the small sleeve 1 is large. 6 along the circumferential serrations smal...

Embodiment 2

[0050] In the present embodiment, on the basis of Example 1 also has the following characteristics:

[0051] like image 3 , The latching pin 8 also has a guide wedge 15, smaller wedge 16 has a mating sleeve, with the wedge guide 16 and wedge 15 with the drive pin 8 is moved to the latching position of the small sleeve 2 2. The structure is for further one-hand operation, the sleeve 2 is relatively large when the small down sleeve 1, with the guide surface of the wedge wedge wedge wedge surface 16 of the fitting 15, a relatively large radial sleeve 1 driving force direction, the push switch arm 9 beyond the equilibrium position, so that the switch arm 9 to enter from the open state to the closed state, the latching pin 10 eight pairs of locking ring groove. In use, the switching from the extended position to the retracted position, only the switching state of the switching arm 9 to the open state, it will automatically switch and select switch state as needed; is switched to the ex...

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Abstract

The invention discloses a combined type microscopic trephine and aims to overcome the defect in the prior art that multi-end matching is needed when a large sleeve and a small sleeve are switched. The combined type microscopic trephine comprises a large sleeve and a small sleeve, wherein the small sleeve is inserted into the large sleeve, a first rotating handle is arranged at the end part of the large sleeve, a second rotating handle is arranged at the end part of the small sleeve, an arc-shaped wedge opening is formed in one end of the large sleeve, sawteeth are arranged at the end, away from the second rotating handle, of the small sleeve, a locating assembly is arranged between the large sleeve and the small sleeve, the locating assembly comprises a reset spring between the large sleeve and the small sleeve, a clamping pin, a switch arm, a plurality of annular grooves and an elastic piece. The clamping pin slides along a radial direction of the large sleeve and is clamped into a clamping groove to locate the small sleeve, the switch arm is hinged to the first rotating handle, one end of the switch arm is hinged to the clamping pin, and the other end of the switch arm is provided with a switch handle. According to the combined type microscopic trephine, single-handed switching can be achieved, disturbance to microscopic trephine sleeves is reduced, injury to an operated person is reduced, and the operation precision is improved.

Description

Technical field [0001] The present invention relates to surgical instruments, and more particularly, it relates to a combined endoscopic formula trephine. Background technique [0002] Now generally require microscopic trephine sleeve with large and small sleeve, the sleeve needs to be converted in the surgery, a small sleeve after completion small sleeve inserted into the large and needs to be pulled out of the sleeve again, the above step more complicated, it will extend the operation time and energy consumption of the treatments doctors. [0003] Chinese Patent Publication No. CN201922389360.6, may be entitled to an improved pressure limiting depth foraminal mirror visual trephine, the application discloses an improved depth stop may be pressurized foramen visible mirror ring saw comprising a base, a top of the base insert having an outer sleeve trephine, the trephine lower chamber outer sleeve screwed with microscopic trephine, the trephine microscope connecting the bottom fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/14
CPCA61B17/147
Inventor 顾霄鹏
Owner 舟山顾鹤传骨伤医院有限公司
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