CN212415904U

CN212415904U - Ventriculoscope fixer

Info

Publication number: CN212415904U
Application number: CN202020429458.XU
Authority: CN
Inventors: 彭楷文; 彭惠平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2021-01-29
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a cranium base ventriculoscope fixer, a serial communication port, it includes the fixer expansion pipe, the latch bolt, tight hoop, be equipped with multi-disc expansion claw at fixer expansion pipe tip, tight hoop sets up in the fixer expansion pipe and with the cooperation of expansion claw activity roof pressure, the tip of latch bolt inserts the expansion pipe to with tight hoop roof pressure fit, compress tightly hoop tightening ventriculoscope through the latch bolt top, and make the outside expansion of expansion claw at fixer expansion pipe tip, fix ventriculoscope in patient's skull bone window. The utility model discloses simple structure, operation convenient to use.

Description

Ventriculoscope fixer

Technical Field

The utility model relates to the technical field of medical equipment, more specifically relate to a cranium base ventriculoscope fixer.

Background

Ventriculoscopes are medical instruments used for examination and surgery in the ventriculo-ventricular cavity. The existing ventriculoscope is usually fixed by a mechanical arm or a pneumatic arm type fixing frame, and has the defects of large volume, troublesome installation and inconvenient adjustment and use.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provide an instrument which can fix a ventriculoscope in a skull bone hole of a patient, not only can adjust and fix the depth of the ventriculoscope inserted into the skull bone window, but also can adjust and fix the angle of the ventriculoscope inserted into the skull bone window.

The utility model discloses an adopt following technical solution to realize above-mentioned purpose: a skull-based ventriculoscope fixator is characterized by comprising a fixator expansion tube, a locking bolt and a tightening ring, wherein a plurality of expansion claws are arranged at the end part of the fixator expansion tube, the tightening ring is arranged in the fixator expansion tube and movably matched with the expansion claws in a jacking manner, the end part of the locking bolt is inserted into the expansion tube and is in press fit with the tightening ring, the tightening ring is pressed by the locking bolt to fix a ventriculoscope, and the expansion claws at the end part of the fixator expansion tube are linked to expand radially to fix the ventriculoscope in a skull window of a patient.

As a further explanation of the above scheme, the tightening ring is ellipsoidal, and is provided with a plurality of bidirectional telescopic slots for facilitating tightening.

Furthermore, the upper part of the expansion pipe of the fixer is provided with an internal thread hole for accommodating a locking bolt, and the locking bolt is rotationally matched with the internal thread hole.

Furthermore, the inner side of the locking bolt is provided with an external thread matched with the internal thread of the expansion pipe; the lower part of the locking bolt is provided with an inner conical end which is in press fit with the top of the tightening ring.

Furthermore, the lower part of the expansion pipe of the fixer is provided with expansion claws, the lower end parts of the expansion claws are provided with inner conical bosses, and the number of the expansion claws is 4-8.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:

the utility model discloses a be equipped with 4-8 expansion claws at expansion pipe tip, set up the lock ring of an appearance ellipsoid form in the expansion claw, the lock ring is equipped with the two-way flexible groove of the lock ring of being convenient for, in operation, under the effect of fitting pin, the lock ring both can fix the ventriculoscope that passes wherein, and simultaneously, make the radial expansion of expansion claw of expansion pipe tip again, reach the purpose of fixing the ventriculoscope in patient's skull window, both adjustable, the depth that fixed ventriculoscope inserted skull window, but also adjustable, the angle that fixed ventriculoscope inserted skull window, think about ingeniously, simple structure, convenient operation, low in manufacturing cost.

Drawings

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

Description of reference numerals: 1. a fixer expanding tube 1-1, an internal thread hole 1-2, an expanding claw

2. 2-1 parts of locking bolts, 2-2 parts of external threads, 3 parts of inner conical ends and a hoop.

Detailed Description

The technical solution is described in detail with reference to specific embodiments below.

As shown in figure 1, the utility model relates to a craniofacial ventriculoscope fixer, it includes fixer expansion tube 1, latch bolt 2, lock hoop ring 3, be equipped with 4-8 slice internal cone expansion claws 1-2 at fixer expansion tube tip, lock hoop ring sets up in fixer expansion tube 1 and with expansion claw activity roof pressure cooperation, the tip of latch bolt inserts the expansion tube to with the press fit of lock hoop ring roof, fix the ventriculoscope through latch bolt 2 roof pressure lock hoop ring, and through the radial component of the interior conical surface conduction of lock hoop expansion claw 1-2, make the expansion claw 1-2 linkage of fixer expansion tube tip toward radial expansion, fix the ventriculoscope in patient's skull window. The shape of the tightening ring is ellipsoid, and the tightening ring is provided with a bidirectional telescopic groove convenient for tightening. The expansion claw 1-2 of the expansion pipe of the fixator is provided with a cavity for accommodating the clamping ring, and the end part of the expansion claw 1-2 is in an inner conical shape. The upper part of the expansion pipe of the fixer is provided with an internal thread hole 1-1 for accommodating a locking bolt, and the locking bolt 2 is rotationally matched with the internal thread hole of the expansion pipe 1. The lower part of the locking bolt 2 is provided with an inner conical end 2-2 which is in abutting fit with the tightening ring 3.

When the cranio-based ventriculoscope fixer works, the end part of the expansion pipe of the fixer is inserted into a skull hole drilled in advance, the locking bolt is screwed down by rotation, the tightening ring fixes the cranio-based ventriculoscope, the expansion claw at the end part of the expansion pipe is linked to expand radially, and the ventriculoscope is fixed in a skull window of a patient.

Compared with the prior art, the utility model, both adjustable, the depth of fixed ventriculoscope insertion skull window, adjustable, the angle of fixed ventriculoscope insertion skull window again thinks about ingeniously, simple structure, convenient operation, low in manufacturing cost.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A ventriculoscope fixer is characterized by comprising a fixer expansion pipe, a locking bolt and a tightening ring, wherein a plurality of expansion claws are arranged at the end part of the fixer expansion pipe, the tightening ring is arranged in the fixer expansion pipe and movably matched with the expansion claws in a jacking manner, the end part of the locking bolt is inserted into the expansion pipe and is in press fit with the tightening ring, the ventriculoscope is fixed by jacking the tightening ring through the locking bolt, and the expansion claws at the end part of the fixer expansion pipe are radially expanded.

2. The ventriculoscope holder of claim 1, wherein the tightening ring is ellipsoidal in shape and is provided with a bidirectional telescopic slot for facilitating tightening.

3. The ventriculoscope holder of claim 1, wherein the upper portion of the holder expansion tube is provided with an internally threaded hole for receiving a locking bolt, the locking bolt being rotatably engaged with the internally threaded hole.

4. The ventriculoscope holder of claim 3, wherein the locking bolt is provided with external threads on the inside that mate with the internal threads of the dilation tube.

5. The ventriculoscope holder of claim 4, wherein the lower portion of the locking bolt is provided with an internally tapered tip which is press-fitted to the top of the tightening ring.

6. The ventriculoscope holder of claim 1, wherein the holder expansion claw ends are provided as internally tapered bosses.

7. The ventriculoscope holder of claim 1, wherein the number of expansion claws of the expansion tube is 4-8.