CN209695399U - A kind of bias bone foramen sounder - Google Patents

Abstract

The utility model discloses a kind of bone foramen sounders, include bone foramen sounder handle, propeller and dipstick, and propeller is placed in sleeve, and propeller is an inner core-body, and dipstick is located therein.It is characterized in that propeller is eccentric structure, so that dipstick is in promote state and detection state respectively.Dipstick leading portion is L-type, and tail end is linear type and indicates scale, hand-holdable rotation.The utility model is safe and reliable, and bone hole interior tissue is avoided to be damaged, and measurement is rapid, accurate positioning.

Description

A kind of bias bone foramen sounder

Technical field

The utility model belongs to the field of medical instrument technology, is related to a kind of eccentric bone foramen sounder.

Background technique

Currently, fixation is the very common operation of bone surgery in reduction of the fracture screw, the length of screw is to pass through depth measurement Ruler measures.The probe and scale for the bone foramen sounder applied in clinic are to use screw connection, and probe tips are one small Right angle is probe.It when clinical depth measurement, is slightly exerted oneself with probe to the direction of hook, probe is the other side for turning to hook, is left The opposite side bone hole cortical bone to be tangled, probe is easier to slip when opposite side bone hole cortical bone is inclined-plane, is not easy accurately to measure bone Hole depth.Simultaneously as longer from sleeve tail portion to fracture distal side distance, the accurate diameter for measuring tubular bone is very difficult, and Result credibility is low, thus needs to improve present measuring system.

The Chinese patent of Publication No. CN 201578245U discloses a kind of bone foramen sounder, including handle, graduated scale, Probe body, wherein graduated scale activity are assemblied in handle, and handle one end is equipped with fixed detent, and the other end is equipped with knob, probe Body is connected to one section of graduated scale after passing through the movable span on knob, and the graduated scale other end extends to outside handle, and probe body includes Sleeve and probe.

The Chinese patent of Publication No. CN2719254Y discloses a kind of bone foramen sounder, includes bone foramen sounder hand Handle, probe body, graduated scale and probe, graduated scale are assemblied in bone hole detector handle in activity, bone foramen sounder handle and quarter Degree ruler is connected with knob thread, and probe body is a sleeve, and sleeve is provided with inner core-body, and the front end of inner core-body sets that there are two parallel Elastic slice probe hook.

Above-mentioned technical proposal is to be stuck in bone hole by the hook on probe by the way that probe is arranged in sleeve and realize survey Amount.The deficiency of this mode, which is to link up with, to be easy to damage bone hole interior tissue during positioning, and root when measurement Test depth is determined according to estimating, and positioning is inaccurate.

Summary of the invention

The utility model solves the problems, such as to be to provide a kind of eccentric bone foramen sounder, so that dipstick is in propulsion state respectively And detection state, avoid bone hole interior tissue from being damaged, easy to operate, measurement is accurate, as a result reliably.

The utility model is to be achieved through the following technical solutions:

A kind of bias bone foramen sounder, can freely push away in sleeve including sleeve and its interior propeller being arranged, propeller It draws；The dipstick of L-type is eccentrically set in propeller, and end of probe stretches out sleeve and propeller respectively.

It is equipped with rotatable eccentric wheel in the propeller, is provided with across the side of eccentric wheel and passes through for dipstick Through-hole.

There is handle in the propeller end.

The dipstick tail end indicates scale.

Compared with prior art, the utility model has the beneficial effect that

Bone foramen sounder provided by the utility model, by designing dipstick propeller eccentric structure, dipstick propeller In eccentric structure, it is soft to avoid fat, muscle etc. in detector when promoting state out of sleeve for dipstick point detection state and propulsion state Tissue reaches the bone hole distal side cortical bone that electric drill is drilled, and the tail portion for rotating dipstick at this time makes that state is promoted to become detecting state, surveys Deep ruler, which can determine, catches on bone hole cortex distal side.When sleeve tightly close to cortical bone nearside when, dipstick enters the depth of sleeve The length for subtracting sleeve is that the screw of exact length then can be used according to this data in the length of bone hole distance two sides cortex For interior fixation.

Bone foramen sounder provided by the utility model, safety and precise when use, avoids bone hole interior tissue from being damaged, and grasps Make simply, as a result reliably.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the dipstick structural schematic diagram that eccentric wheel is arranged；

Fig. 3 is the schematic diagram that novel eccentric dipstick detects state；

Fig. 4 is the schematic diagram that novel eccentric dipstick promotes state；

Fig. 5 is that sleeve protects lower electric drill to drill out bone hole；

Fig. 6 is that bathometer promotes state；

Fig. 7 is that bathometer detects state (accurately catching on bone hole distal side)；

Wherein, 1 is sleeve；2 be propeller；3 be dipstick；4 be nearside cortical bone；5 be distal side cortical bone, and 6 be electric drill, 7 be drill bit, and 8 be eccentric wheel.

Specific embodiment

Embodiment combination Figure of description further illustrate the present invention, but embodiment the present invention is not done it is any type of It limits.Unless stated otherwise, the method and apparatus that the utility model uses is the art conventional method and equipment.

Referring to Fig. 1-Fig. 7, a kind of bias bone foramen sounder exists including sleeve 1 and its interior propeller 2 being arranged, propeller 2 1 can freely push and pull in sleeve；The dipstick 3 of L-type is eccentrically set in propeller 2, and end of probe is stretched out sleeve 1 respectively and promoted Device 2.

Further, referring to fig. 2, rotatable eccentric wheel 8 is equipped in the propeller 2, across the side of eccentric wheel 8 It is provided with the through-hole passed through for dipstick 3.

Specifically, there is handle in 2 end of propeller.

3 tail end of dipstick indicates scale.

For the utility model when measuring bone hole depth, dipstick 3 avoids fat, muscle etc. by propeller 2 out of sleeve 1 Soft tissue reaches the bone hole distal side cortical bone 5 that electric drill is drilled, at this point, the tail portion of rotation dipstick 3 makes that state is promoted to become detecting State (shown in Fig. 6, Fig. 7), dipstick 3, which can determine, catches on bone hole cortex distal side.When sleeve 1 tightly close to cortical bone nearside when, The depth of dipstick 3 into sleeve 1 subtracts the length that the length of sleeve 1 is bone hole distance two sides cortex at this time, according to this number According to the screw that exact length then can be used is used for interior fixation.

Bone foramen sounder provided by the utility model, safety and precise when use, avoids bone hole interior tissue from being damaged, and grasps Make simply, as a result reliably.

Claims (4)

1. a kind of bias bone foramen sounder, which is characterized in that including sleeve (1) and its interior propeller (2) being arranged, propeller (2) (1) can freely push and pull in sleeve；The dipstick (3) of L-type is eccentrically set in propeller (2), and end of probe is stretched out respectively Sleeve (1) and propeller (2).

2. bias bone foramen sounder as described in claim 1, which is characterized in that being equipped in the propeller (2) can be rotated Eccentric wheel (8), pass through eccentric wheel (8) side be provided with the through-hole passed through for dipstick (3).

3. bias bone foramen sounder as described in claim 1, which is characterized in that there is handle in described propeller (2) end.

4. bias bone foramen sounder as described in claim 1, which is characterized in that described dipstick (3) tail end indicates scale.