CN213665128U

CN213665128U - Special direct measuring device for endoscope

Info

Publication number: CN213665128U
Application number: CN202022228884.XU
Authority: CN
Inventors: 彭志红; 代剑华; 彭贵勇; 陈瑶
Original assignee: First Affiliated Hospital of PLA Military Medical University
Current assignee: Nanfang Hospital; First Affiliated Hospital of PLA Military Medical University
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-07-13
Anticipated expiration: 2030-10-09

Abstract

The utility model provides a special direct measurement device of scope belongs to medical instrument technical field. It has solved current device and has adopted the single direction to measure to the pathological change and have the inaccurate problem of counterpointing. It includes the guide bar, fix the thumb handle in the guide bar rear end, the forefinger middle finger handle of slip cup joint on the guide bar and connect in the anterior sleeve pipe of guide bar, movable steel wire and fixed steel wire are worn to be equipped with in the sleeve pipe, the rear end of activity steel wire links firmly with forefinger middle finger handle, the rear end and the guide bar of fixed steel wire link firmly, the front end of activity steel wire is connected with first dipperstick, be equipped with first joint on the first dipperstick, be connected with the second dipperstick on the first joint, be equipped with the second joint on the second dipperstick, the front end and the second articulate of fixed steel wire. The utility model discloses can be under the endoscope the actual size of accurate measurement focus to there is selectable three direction to measure, improve the unsafe limitation of single direction counterpoint, measuring range is wide.

Description

Special direct measuring device for endoscope

Technical Field

The utility model belongs to the technical field of medical instrument, a special direct measurement device of scope is related to.

Background

With the rapid development of science and technology, the application field of endoscopes is more and more extensive, and the endoscopes can be used for diagnosis of diseases and more importantly, minimally invasive treatment of diseases. The actual size of the focus is measured under direct vision through an endoscope, and the method is very important for the diagnosis of diseases and the comparative analysis before and after treatment. The size of the focus seen on the endoscope display changes along with the change of the distance between the head end of the endoscope and the focus, and the closer the end of the inner lens is to the focus, the larger the focus display is; the farther the inner lens end is from the lesion, the smaller the lesion appears.

The size of the lesion sometimes directly affects the selection of a treatment scheme and the judgment of curative effect, and especially in the process of observing the curative effect of clinical treatment, the attention to the size of the lesion and the accurate record are very important. At present, the size of a lesion under an endoscope can only be estimated by experience or the size of an opening of a biopsy forceps is taken as reference, and the actual size of the lesion cannot be directly and accurately measured. If the diameter of the endoscope body is used as a reference object, the estimated size is inaccurate due to the difference of the distance under the vision. If the size of the opened gastroscope biopsy forceps is taken as a reference, the estimation value is not accurate because the position of the biopsy forceps cannot be completely parallel to the lesion, or the lesion is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a direct measuring device special for endoscope with accurate measurement.

The purpose of the utility model can be realized by the following technical proposal:

special direct measuring device of scope, including the guide bar, fix thumb handle, the slip of guide bar rear end and cup joint the forefinger middle finger handle on the guide bar and connect in the anterior sleeve pipe of guide bar, the intraductal movable steel wire and the fixed steel wire of wearing to be equipped with of cover, the rear end of movable steel wire links firmly with forefinger middle finger handle, the rear end and the guide bar of fixed steel wire link firmly, the front end of movable steel wire is connected with the first dipperstick of extending along its length direction, first dipperstick on be equipped with first joint, first joint on be connected with the second dipperstick, the second dipperstick on be equipped with the second joint, the front end and the second articulate of fixed steel wire.

The guide bar is hollow structure, and the forefinger-middle-finger handle stretches into the guide bar from the lateral part of guide bar, and the rear end of activity steel wire links firmly with the part that the forefinger-middle-finger handle stretches into in the guide bar. The rear end of the fixed steel wire is fixedly connected with the inner wall of the guide rod, and the fixedly connected point of the fixed steel wire and the inner part of the guide rod is positioned at the front part of the handle of the index finger and the middle finger. The rotation center line of first joint and second joint is parallel, and the second dipperstick can swing around the rotation center line of first joint, and the second dipperstick can swing around the rotation center line of second joint. When the handle of the index finger and the middle finger is pushed and pulled, the movable steel wire drives the first measuring scale to move back and forth, and the first measuring scale drives the second measuring scale to swing around the second joint, so that the second measuring scale can be unfolded and folded.

In the above direct measuring device for endoscope, the end of the first measuring scale far away from the movable steel wire is connected with the measuring steel wire, the other end of the measuring steel wire is connected with the end of the second measuring scale far away from the first joint, the measuring steel wire is provided with scales, and the measuring steel wire is straightened when the second measuring scale is in the unfolding state.

The measuring steel wire has flexibility and is evenly provided with scales along the length direction. When the second measuring scale is folded, the bending of the steel wire is measured; when the second dipperstick expandes, measure the steel wire and be flare-outed, constitute triangle-shaped by first dipperstick, second dipperstick and measurement steel wire promptly, measure the steel wire and can prescribe a limit to the biggest contained angle between first dipperstick and the second dipperstick. The accessible is located the first dipperstick of equidirectional not, second dipperstick and measures the size of steel wire to pathological change and measures, improves the inaccurate limitation of single direction counterpoint.

In foretell special direct measurement device of scope, first dipperstick keep away from the one end of activity steel wire and articulate and have the third dipperstick, the one end that first joint was kept away from to the second dipperstick articulates and has the fourth dipperstick, the length of third dipperstick and fourth dipperstick is the same, the one end that the second dipperstick was kept away from to the one end that first dipperstick was kept away from to the third dipperstick and the fourth dipperstick is articulated, and the third dipperstick is located same straight line with the fourth dipperstick when the second dipperstick is in the expansion state.

Set up the scale on third dipperstick and fourth dipperstick, when third dipperstick and fourth dipperstick are located same straight line, the scale is along the holistic length direction who comprises third dipperstick and fourth dipperstick evenly setting. The rotation center line of the third measuring scale rotating around the first measuring scale, the rotation center line of the fourth measuring scale rotating around the second measuring scale, and the rotation center line of the third measuring scale rotating around the fourth measuring scale are respectively parallel to the rotation center line of the first joint. The folding process is the same as that when the measuring steel wire is arranged.

In the above direct measuring device for endoscope, the length of the first measuring scale is equal to the length of the second measuring scale, and when the second measuring scale is in the unfolded state, the included angle between the first measuring scale and the second measuring scale is 90 °. Namely, the triangle formed by the first measuring scale, the second measuring scale and the measuring steel wire (or the whole formed by the third measuring scale and the fourth measuring scale) is an isosceles right triangle.

In the above direct measuring device for endoscope, the guide rod is provided with a first annular clamping groove, a second annular clamping groove positioned in the front part of the first annular clamping groove and two longitudinal grooves used for communicating the first annular clamping groove and the second annular clamping groove, the two longitudinal grooves are symmetrically arranged, and the rear end of the sleeve is provided with two jaws symmetrically arranged.

The longitudinal groove extends along the length direction of the guide rod, the clamping jaw is positioned in the first annular clamping groove/the second annular clamping groove when the sleeve does not need to be moved, the sleeve is rotated by a certain angle (such as 90 degrees) until the clamping jaw is arranged opposite to the longitudinal groove when the sleeve needs to be moved, and then the clamping jaw enters the longitudinal groove and moves along the longitudinal groove.

In the direct measuring device special for endoscope, the clapboard for cutting the movable steel wire and the fixed steel wire is arranged in the sleeve.

Compared with the prior art, the special direct measuring device for the endoscope has the advantages that: the actual size of the focus can be accurately measured under an endoscope, and the focus can be measured in three selectable directions, so that the limitation of inaccurate alignment in a single direction is improved, and the measurement range is wide; the partition plate can prevent the fixed steel wire and the movable steel wire from being mutually wound; the operation is simple.

Drawings

FIG. 1 is a longitudinal sectional view of a measuring device in a first state according to one embodiment.

FIG. 2 is a longitudinal sectional view of the measuring device in a second state according to the first embodiment.

FIG. 3 is a longitudinal sectional view of the measuring device in a third state according to the first embodiment.

FIG. 4 is a transverse cross-sectional view of a guide bar according to one embodiment.

FIG. 5 is a transverse cross-sectional view of a cannula according to one embodiment.

FIG. 6 is a longitudinal sectional view of the measuring apparatus according to the second embodiment.

In the figure, 1, a guide rod; 2. a thumb handle; 3. a forefinger-middle-finger handle; 4. a sleeve; 5. a movable steel wire; 6. fixing the steel wire; 7. a first measuring scale; 8. a first joint; 9. a second measuring scale; 10. a second joint; 11. measuring a steel wire; 12. a third measuring scale; 13. a fourth measuring scale; 14. a first ring-shaped card slot; 15. A second annular card slot; 16. a longitudinal slot; 17. a claw; 18. a separator.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

The direct measuring device special for endoscope shown in fig. 1 comprises a guide rod 1, a thumb handle 2 fixed at the rear end of the guide rod 1, a forefinger and middle finger handle 3 slidably sleeved on the guide rod 1, and a sleeve 4 connected to the front part of the guide rod 1, wherein a movable steel wire 5 and a fixed steel wire 6 penetrate through the sleeve 4, and a partition plate 18 used for dividing the movable steel wire 5 and the fixed steel wire 6 is arranged in the sleeve 4 as shown in fig. 5. The guide rod 1 is of a hollow structure, the index finger and middle finger handle 3 extends into the guide rod 1 from the side part of the guide rod 1, and the rear end of the movable steel wire 5 is fixedly connected with the part of the index finger and middle finger handle 3 extending into the guide rod 1. As shown in figure 1, the rear end of the movable steel wire 5 is fixedly connected with the index finger and middle finger handle 3, the rear end of the fixed steel wire 6 is fixedly connected with the inner wall of the guide rod 1, and the fixedly connected point of the fixed steel wire and the inner part of the guide rod 1 is positioned at the front part of the index finger and middle finger handle 3.

As shown in fig. 1, the guide rod 1 has a first ring slot 14, a second ring slot 15 located at the front of the first ring slot 14, and two longitudinal grooves 16 for communicating the first ring slot 14 with the second ring slot 15, the two longitudinal grooves 16 are symmetrically arranged as shown in fig. 4, and the rear end of the sleeve 4 has two symmetrically arranged claws 17 as shown in fig. 5. Wherein the longitudinal slot 16 extends along the length direction of the guide bar 1, the claws 17 are located in the first ring groove 14/the second ring groove 15 when the sleeve 4 is not required to be moved, when the sleeve 4 is required to be moved, the sleeve 4 is rotated by 90 degrees until the claws 17 are opposite to the longitudinal slot 16, then the claws 17 enter the longitudinal slot 16 and move along the longitudinal slot 16, and the sleeve 4 is reversely rotated by 90 degrees after moving in place.

As shown in fig. 1, the front end of the movable steel wire 5 is connected with a first measuring scale 7 extending along the length direction thereof, the first measuring scale 7 is provided with a first joint 8, the first joint 8 is connected with a second measuring scale 9, the second measuring scale 9 is provided with a second joint 10, and the front end of the fixed steel wire 6 is connected with the second joint 10. The first joint 8 is parallel to the rotation center line of the second joint 10, the second measuring scale 9 can swing around the rotation center line of the first joint 8, and the second measuring scale 9 can swing around the rotation center line of the second joint 10. When the handle 3 of the index finger and the middle finger is pushed and pulled, the movable steel wire 5 drives the first measuring scale 7 to move back and forth, the first measuring scale 7 drives the second measuring scale 9 to swing around the second joint 10, and the second measuring scale 9 can be unfolded and folded.

As shown in fig. 1, one end of the first measuring scale 7, which is far away from the movable steel wire 5, is connected with a measuring steel wire 11, the other end of the measuring steel wire 11 is connected with one end of the second measuring scale 9, which is far away from the first joint 8, the measuring steel wire 11 is provided with scales, and the measuring steel wire 11 is straightened when the second measuring scale 9 is in the unfolding state. The measuring steel wire 11 has flexibility and is evenly provided with scales along the length direction. When the second measuring scale 9 is folded, the bending of the steel wire 11 is measured; when second dipperstick 9 expandes, measure steel wire 11 and be straightened, constitute triangle-shaped by first dipperstick 7, second dipperstick 9 and measurement steel wire 11 promptly, measure steel wire 11 and can prescribe a limit to the biggest contained angle between first dipperstick 7 and the second dipperstick 9. The accessible is located the first dipperstick 7 of equidirectional, second dipperstick 9 and measures steel wire 11 and measure the size of pathological change, improves the inaccurate limitation of single orientation counterpoint.

In this embodiment, the length of the first measuring scale 7 is equal to the length of the second measuring scale 9, and when the second measuring scale 9 is in the unfolded state, the included angle between the first measuring scale 7 and the second measuring scale 9 is 90 °. Namely, the triangle formed by the first measuring scale 7, the second measuring scale 9 and the measuring steel wire 11 is an isosceles right triangle.

When the device is used, the forefinger and middle finger handle 3 is pulled back, the movable steel wire 5 pulls the first measuring scale 7 to move backwards, the sleeve 4 is pushed to the second annular clamping groove 15 from the first annular clamping groove 14 along the longitudinal groove 16, the sleeve 4 is rotated by 90 degrees, the clamping jaw 17 is inserted into the second annular clamping groove 15, and as shown in fig. 3, the first measuring scale 7, the second measuring scale 9 and the measuring steel wire 11 are positioned in the sleeve 4, so that the inner wall of a pipeline can be protected when the inner diameter biopsy pipeline is inserted; the device is inserted into the endoscope biopsy channel by 3cm to 4cm beyond the front end of the endoscope, the sleeve 4 is rotated by 90 degrees and pulled to the first annular clamping groove 14 along the longitudinal groove 16, the sleeve 4 is rotated by 90 degrees to enable the clamping jaws 17 to be inserted into the first annular clamping groove 14, and the structure is shown in figure 2; then push forefinger middle finger handle 3 forward, make activity steel wire 5 drive first dipperstick 7 forward motion, measurement steel wire 11 is straightened gradually, until first dipperstick 7, second dipperstick 9 and measurement steel wire 11 constitute isosceles right triangle, and its state is shown in fig. 1.

The accessible is located the first dipperstick 7 of equidirectional not, the actual size of second dipperstick 9 and measurement steel wire 11 measurement pathological change, and it is high to measure the accuracy, and application scope is wide.

Example two

The structural principle of this embodiment is the same basically as the structural principle of embodiment one, the difference lies in, as shown in fig. 6, the one end that activity steel wire 5 was kept away from to first dipperstick 7 articulates there is third dipperstick 12, the one end that first joint 8 was kept away from to second dipperstick 9 articulates there is fourth dipperstick 13, third dipperstick 12 is the same with the length of fourth dipperstick 13, the one end that first dipperstick 7 was kept away from to third dipperstick 12 is articulated with the one end that second dipperstick 9 was kept away from to fourth dipperstick 13, third dipperstick 12 is located same straight line with fourth dipperstick 13 when second dipperstick 9 is in the expansion state. Set up the scale on third dipperstick 12 and fourth dipperstick 13, when third dipperstick 12 is located same straight line with fourth dipperstick 13, the scale is along the even setting of holistic length direction who comprises third dipperstick 12 and fourth dipperstick 13. The rotation center line of the third measuring scale 12 around the first measuring scale 7, the rotation center line of the fourth measuring scale 13 around the second measuring scale 9, and the rotation center line of the third measuring scale 12 around the fourth measuring scale 13 are parallel to the rotation center line of the first joint 8, respectively. The folding process is the same as that of the first embodiment.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A special direct measuring device for an endoscope comprises a guide rod (1), a thumb handle (2) fixed at the rear end of the guide rod (1), a forefinger middle finger handle (3) slidably sleeved on the guide rod (1) and a sleeve (4) connected to the front part of the guide rod (1), wherein a movable steel wire (5) and a fixed steel wire (6) are arranged in the sleeve (4) in a penetrating manner, the rear end of the movable steel wire (5) is fixedly connected with the forefinger middle finger handle (3), the rear end of the fixed steel wire (6) is fixedly connected with the guide rod (1), the special direct measuring device is characterized in that the front end of the movable steel wire (5) is connected with a first measuring scale (7) extending along the length direction of the movable steel wire, the first measuring scale (7) is provided with a first joint (8), the first joint (8) is connected with a second measuring scale (9), the second measuring scale (9) is provided with a second joint (10), the front end of the fixing steel wire (6) is connected with a second joint (10).

2. The direct measuring device for endoscope, according to claim 1, characterized in that the end of the first measuring ruler (7) far away from the movable steel wire (5) is connected with a measuring steel wire (11), the other end of the measuring steel wire (11) is connected with the end of the second measuring ruler (9) far away from the first joint (8), the measuring steel wire (11) is provided with scales, when the second measuring ruler (9) is in the unfolding state, the measuring steel wire (11) is straightened.

3. The special direct measuring device of scope of claim 1, characterized in that, the one end that first dipperstick (7) kept away from movable steel wire (5) articulate has third dipperstick (12), the one end that first joint (8) was kept away from in second dipperstick (9) articulates has fourth dipperstick (13), third dipperstick (12) are the same with the length of fourth dipperstick (13), the one end that first dipperstick (7) was kept away from in third dipperstick (12) articulates with the one end that second dipperstick (9) was kept away from in fourth dipperstick (13), third dipperstick (12) and fourth dipperstick (13) are located same straight line when second dipperstick (9) is in the expansion state.

4. An endoscope specific direct measurement arrangement according to claim 2 or 3, characterized in that the length of the first measuring ruler (7) is equal to the length of the second measuring ruler (9), the angle between the first measuring ruler (7) and the second measuring ruler (9) being 90 ° when the second measuring ruler (9) is in the unfolded state.

5. An endoscope dedicated direct measurement device according to claim 1, 2 or 3, characterized in that the guide rod (1) is provided therein with a first annular clamping groove (14), a second annular clamping groove (15) located at the front part of the first annular clamping groove (14), and two longitudinal grooves (16) for communicating the first annular clamping groove (14) with the second annular clamping groove (15), the two longitudinal grooves (16) are symmetrically arranged, and the rear end of the sleeve (4) is provided with two symmetrically arranged clamping claws (17).

6. An endoscope-specific direct measurement arrangement according to claim 1 or 2 or 3, characterized in that a partition (18) for dividing the movable wire (5) and the stationary wire (6) is provided in the sleeve (4).