CN112914556A

CN112914556A - Measuring scale

Info

Publication number: CN112914556A
Application number: CN201911238267.3A
Authority: CN
Inventors: 朱霖
Original assignee: Individual
Current assignee: Anhui Bainuojia Medical Technology Co Ltd; Zhu Lin
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2021-06-08

Abstract

The invention discloses a measuring scale, which relates to the technical field of medical appliances and comprises an operating handle component and a measuring head component, wherein the measuring head component consists of a measuring sheet, two driven wires respectively connected with the measuring sheet, a steering block capable of steering the driven wires and a cheek shaft penetrating through the steering block, and the operating handle component consists of an annular finger ring, a long core rod, a circular sliding block, a metal spiral hose, a fixing clamp and a steel cable. The driven wire is made of super elastic material, so that the bent wire material can still be in a straight line after the driven wire is bent for 90 degrees. The invention is matched with an endoscope for use, the diameter of a channel of a treatment instrument of the endoscope is usually about 3mm, moving parts are designed under the condition of the small diameter, and the invention is also reliable.

Description

Measuring scale

Technical Field

The invention relates to the field of medical instruments under an endoscope, in particular to a measuring scale.

Background

At present, most of the methods for measuring the diameter (or the distance, because some lumens have non-circular cross sections but are more circular, the term diameter is used hereinafter) of the human body lumen rely on image technology to estimate and calculate numerical values, but the images have scale, different tissue visualization abilities, and the images are usually obtained in one direction or two directions, the visualization ability of the upper mucosal layer added in the lumen is poor, which brings errors to the final result, takes time, and "eat rays", and is not accurate.

Endoscopes have been widely used in examination in departments such as the digestive tract, respiration, and urinary system. If the diameter of the cavity of the human body can be checked through the endoscope by using one instrument, the measurement can be carried out under the direct vision of the endoscope, the measurement is more intuitive, the measurement is not estimated but is closer to the reality, and the key is that the diameter of the cavity can be measured from different directions by rotating the measuring ruler.

The currently searched published patents, such as the structures disclosed in application numbers 201610200325.3 and 201420596758.1, are all patents in the direction of this application. But the invention provides another scheme, which is easier to realize.

Disclosure of Invention

The invention aims to: the defects of the prior art are overcome, and the measuring scale is provided.

The measuring scale comprises an operating handle component (2) and a measuring head component (1), wherein the measuring head component (1) consists of two measuring sheets (1-1 and 1-7) at two sides, two driven wires (1-2 and 1-6) respectively connected with the measuring sheets (1-1 and 1-7), two steering blocks (1-4 and 1-5) capable of steering the driven wires (1-2 and 1-6), and a cheek shaft (1-3) penetrating through the two steering blocks (1-4 and 1-5), the operating handle component (2) consists of an annular finger ring (2-6) at the tail part of the component, a long core rod (2-3) with a groove in the middle, a circular sliding block (2-4) sleeved on the long core rod (2-3), and a metal spiral hose (2-2) arranged on the long core rod (2-3), The measuring head component (1) is connected with the operating handle component (2) by connecting the free ends of two driven wires (1-2, 1-6) and the free end of the steel cable (2-1) through stainless steel capillary riveting, and the free ends of the metal spiral hose (2-2) are connected with holes formed at the tail parts of steering blocks (1-4 and 1-5) of the measuring head component (1). As shown in figures 1 and 2 of the drawings.

According to a further improvement scheme of the invention, the two driven wires (1-2 and 1-6) are made of super-elastic materials (such as nickel-titanium alloy wires), so that the bent wires can still be in a straight line after the driven wires are bent for 90 degrees.

According to a further improvement of the invention, the shape of the maximum projection profile of the two measuring sheets (1-1 and 1-7) on both sides of the measuring head component (1) can be square, circular or elliptical.

In a further improvement of the invention, a length scale with millimeter division is arranged on the long core rod (2-3) which is arranged on the operating handle component (2) and is slotted in the middle along the axial direction.

According to a further improvement of the invention, the outer surface of the metal spiral hose (2-2) on the operating handle part (2) can be coated with plastic.

According to a further improvement of the invention, the measuring sheets (1-1 and 1-7) are provided with grooves, and the turning blocks (1-4 and 1-5) are provided with corresponding bulges for positioning.

The invention has the beneficial effects that:

firstly, the operation handle component of the invention moves a circular sliding block (2-4) towards the direction of an annular finger ring (2-6), so that two measuring sheets (1-1 and 1-7) are close to two steering blocks (1-4 and 1-5), the head of the invention is inserted into an endoscope of a human body, under the condition of direct vision, the two measuring sheets (1-1 and 1-7) on a measuring head component (1) are opposite to a part to be measured, the circular sliding block (2-4) is moved towards the direction of the measuring head component (1) until the two measuring sheets (1-1 and 1-7) are contacted with the part to be measured, the scale on a long core rod (2-3) is used for calculating the moving distance value of the circular sliding block (2-4) on the long core rod (2-3), and the distance value is multiplied by two, the diameter of the steering blocks (1-4) is equal to the diameter of the cavity tube at the measured part. The diameter of the human body cavity is measured, the time is saved, the accuracy is realized, the measurement can be carried out in multiple directions, the manufacturing cost is low, and the application and popularization values are good.

The second and the second measuring sheets (1-1 and 1-7) are in contact with the epithelial mucosa of the human body cavity, the contact surface is large, and the phenomena of puncturing and puncturing the human body cavity can not occur.

The third and the second driven wires (1-2, 1-6) are made of super-elastic materials (such as nickel-titanium alloy wires) and are similar to the core materials of the spacecraft solar turning plate, so that the wire materials after turning by 90 degrees can still be straight, and the wire materials after turning can not be ideally drawn on a paper surface, and in fact, after being bent by a large angle, common materials can not necessarily rebound to be straight.

Fourthly, the outer surface of the metal spiral hose (2-2) can be coated with plastic so as to reduce errors caused by bending of the metal spiral hose (2-2) during use.

Description of the drawings:

FIG. 1 is a general schematic of the structure of the present invention;

FIG. 2 is a schematic view of the head according to the present invention;

fig. 3 is a schematic structural view of the turning block.

In the figure: 1-is a measurement head assembly comprising: 1-1 and 1-7 are measuring pieces, 1-2 and 1-6 are two driven wires, 1-4 and 1-5 are two turning blocks, and 1-3 is a cheek shaft; 2-is a lever member comprising: 2-6 is a ring-shaped finger ring, 2-5 is a fixing clip, 2-4 is a circular sliding block, 2-3 is a long core rod, 2-2 is a metal spiral hose, and 2-1 is a steel cable.

The specific implementation mode is as follows:

as can be seen from figure 2, two driven wires (1-2, 1-6) are respectively connected with two measuring sheets (1-1 and 1-7), the two driven wires (1-2, 1-6) are respectively put into grooves (shown in figure 3) bent by 90 degrees on two turning blocks according to the orientation shown in figure 2, the two turning blocks (1-4 and 1-5) provided with the driven wires (1-2, 1-6) and the measuring sheets (1-1 and 1-7) are combined together, a cheek shaft (1-3) is threaded, the two turning blocks (1-4 and 1-5) are fixed through welding or riveting, and then the head part (1) is assembled.

According to the figure 1, the annular finger ring (2-6) is sleeved on the long core rod (2-3) and is in place, the circular sliding block (2-4) sleeved on the long core rod (2-3) is used for installing the metal spiral hose (2-2) on the long core rod (2-3), the steel cable (2-1) penetrates through the inner cavity of the metal spiral hose (2-2), the steel cable (2-1) is connected to the circular sliding block (2-4) through the fixing clamp (2-5), and the assembly of the operating handle component (2) is completed.

Moving the circular sliding block (2-4) to a dead point towards the direction of the measuring head component (1), butting two driven wires (1-2, 1-6) at the tail part of the measuring head component (1) and the free end of a steel cable (2-1) on the operating handle component (2) together by using a stainless steel capillary riveting method; and then moving the circular sliding block (2-4) towards the direction of the annular finger ring (2-6) to enable the free end of the metal spiral hose (2-2) to enter the tail holes of the steering blocks (1-4 and 1-5) of the measuring head component (1), and connecting the free end of the metal spiral hose (2-2) with the tail parts of the steering blocks (1-4 and 1-5) of the measuring head component (1) by a welding method to finish the assembly of the product.

Claims

1. The measuring scale is characterized by comprising an operating handle component (2) and a measuring head component (1), wherein the measuring head component (1) consists of two measuring sheets (1-1 and 1-7) at two sides, two driven wires (1-2 and 1-6) respectively connected with the measuring sheets (1-1 and 1-7), two steering blocks (1-4 and 1-5) capable of steering the driven wires (1-2 and 1-6), and a cheek shaft (1-3) penetrating through the two steering blocks (1-4 and 1-5), the operating handle component (2) consists of an annular finger ring (2-6) at the tail part, a long core rod (2-3) with a groove in the middle part, a circular sliding block (2-4) sleeved on the long core rod (2-3), and a metal spiral hose (2-2) arranged on the long core rod (2-3), The steel cable (2-1) penetrates through the inner cavity of the metal spiral hose (2-2) and is connected to the circular sliding block (2-4) through a fixing clamp (2-5), the free ends of two driven wires (1-2, 1-6) and the free end of the steel cable (2-1) are connected together in a butt joint mode through a stainless steel capillary riveting method, and the free end of the metal spiral hose (2-2) is connected with a hole formed in the tail portion of a steering block (1-4 and 1-5) of the measuring head component (1).

2. The measuring ruler of claim 1, wherein said two driven wires (1-2, 1-6) are made of super elastic material (such as nitinol wire), which substantially ensures that the bent wire will be straight after the driven wires are bent 90 degrees.

3. The measuring rule according to claim 1, characterised in that said two measuring blades (1-1 and 1-7), the maximum projected external surface, may be square, circular or elliptical in shape.

4. The measuring rule according to claim 1, characterised in that on the long core rod (2-3) there is provided a length scale in millimetres along its axial direction.

5. The measuring ruler of claim 1, wherein said metal spiral hose (2-2) is overmolded.

6. The measuring rule as claimed in claim 1, characterised in that the measuring blades (1-1 and 1-7) are provided with grooves and the turning blocks (1-4 and 1-5) with corresponding projections.