CN211534708U

CN211534708U - Three-dimensional space puncture guide instrument

Info

Publication number: CN211534708U
Application number: CN201922425795.1U
Authority: CN
Inventors: 郝登荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-09-22
Anticipated expiration: 2029-12-28

Abstract

A three-dimensional space puncture guide instrument comprises a base, a sliding device, a supporting device, a first protractor, a second protractor, a puncture guide kit and a shaft-shaped connecting rod; the sliding device is fixedly arranged on the base, one end of the supporting device is connected with the sliding device, and the other end of the supporting device is coaxially connected with the shaft-shaped connecting rod; a first protractor is arranged on the shaft-shaped connecting rod close to the supporting device, and the axis of the shaft-shaped connecting rod is perpendicular to the circle center of the first protractor; the end part of the shaft-shaped connecting rod is connected with a second protractor, and the first protractor and the second protractor are vertical in space; and a puncture guide sleeve is vertically fixed on the round mandrel of the second protractor. The puncture instrument replaces manual visual inspection and bare-handed puncture, reduces human factors, improves puncture precision and success rate, and enlarges puncture range. The portable scanner has small volume, is easy to carry, is fixed on the scanning bed, has fixed spatial position relation with the scanning bed, and has the cost within the affordable range. Is particularly suitable for beginners with insufficient puncture experience.

Description

Three-dimensional space puncture guide instrument

Technical Field

The utility model belongs to the technical field of the puncture appearance, in particular to three-dimensional space puncture guide appearance.

Background

With the popularization and application of CT devices in hospital diagnosis and treatment, CT-guided location puncture diagnosis and treatment are increasing, and since CT has the advantages of high resolution and the like, interventional biopsy and treatment thereof have been widely applied clinically. When the image examination finds that the pathological diagnosis of the tumor in the lung needs to be definite, the puncture biopsy under the guidance of CT is often needed, the operation of moving hands is more in the past, and the puncture is usually carried out according to the cross section angle given by the CT scan. When ribs or scapulae shield or need to avoid blood vessels or female mammary glands, the puncture point is determined and then the difficulty for bare-handed puncture is caused by the angle problem on the cross section and the sagittal plane. In addition, the traditional free-hand puncture method is characterized in that a needle inserting route and depth are drawn on a screen after CT scanning, a puncture person performs puncture by visual inspection with a free hand, the puncture person is required to have rich experience, the puncture person withdraws from a machine room after needle inserting, scanning verification is unsuccessful, the needle inserting angle and depth need to be adjusted, multiple operations are often needed, and damage is aggravated. At present, the domestic and foreign utility model develops various guide devices, namely an advanced Pinpoint laser inter-frame type guide device and a puncture guide frame. The Pinpoint laser guide frame type guide device is expensive, the required CT equipment configuration is high, the device is difficult to popularize in primary hospitals in China, and the puncture frame reported in China is a two-dimensional technology, and only the needle insertion angle and the needle insertion depth can be marked on the cross section of a human body, so that the application is limited. The domestic report CN203576600U patent can achieve the effect of three-dimensional puncture, but the volume is huge, the carrying is inconvenient, the device is independent of a CT scanning bed, the integral positioning is complex, in addition, the guide component of the device is firstly fixed on the skin during puncture, and the displacement of the puncture point on the body surface is easy to cause the change of the whole puncture path due to the looseness of the skin.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three-dimensional space puncture guide appearance to solve above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a three-dimensional space puncture guide instrument comprises a base, a sliding device, a supporting device, a first protractor, a second protractor, a puncture guide kit and a shaft-shaped connecting rod; the sliding device is fixedly arranged on the base, one end of the supporting device is connected with the sliding device, and the other end of the supporting device is coaxially connected with the shaft-shaped connecting rod; a first protractor is arranged on the shaft-shaped connecting rod close to the supporting device, and the axis of the shaft-shaped connecting rod is perpendicular to the circle center of the first protractor; the end part of the shaft-shaped connecting rod is connected with a second protractor, and the first protractor and the second protractor are vertical in space; and a puncture guide sleeve is vertically fixed on the round mandrel of the second protractor.

Further, the puncture guide kit comprises an infrared light source and a puncture guide hole; the infrared light source is arranged at the top end of the second protractor, and two puncture guide holes are vertically arranged at the bottom end of the second protractor.

Furthermore, the sliding device comprises a sliding chute and a sliding block, the sliding chute is fixedly arranged on the base, the base is fixed on the CT scanning bed, the sliding block is arranged in the sliding chute, and the supporting device is vertically fixed on the sliding block.

Further, the supporting device comprises a vertical support, an arc-shaped support and a horizontal support; one end vertical fixation of vertical support is on the slider, and the arc support is connected to the other end of vertical support, and arc leg joint horizontal stand, vertical support and horizontal stand are telescopic bracket, and vertical support and horizontal stand are in coplanar and mutually perpendicular.

Furthermore, the vertical support and the horizontal support are both two tubes sleeved together, and a locking knob is arranged on the outer tube.

Furthermore, a pointer is arranged on the first protractor, and the pointer is attached to the surface of the first protractor and can rotate or be fixed along with the shaft-shaped connecting rod; the puncture guide suite is vertically fixed on the second protractor round mandrel, a pointer is arranged on the shaft and is attached to the front surface of the second protractor, and the pointer is parallel to the axis of the puncture guide suite and can rotate or be fixed with the second protractor round mandrel along with the puncture guide suite.

Furthermore, the shaft-shaped connecting rod is a Z-shaped rod.

Compared with the prior art, the utility model discloses there is following technological effect:

the utility model discloses utilize with CT scanning coronal plane vertically and the rotation of two protractors of mutually perpendicular, realize the three-dimensional space puncture, it can follow the Z axle removal to be on a parallel with CT scanning cross section on the scanning bed, the support of can disassembling, inboard fixed mounting is the protractor mutually perpendicular with it, and pass through the indirect axle form of protractor dot and connect rotatable "Z" type axis pole outside section, axis rotation that axis motion pole accessible outside section and horizontal stand passed first protractor dot is rotatory, it is fixed, the axis motion pole outside sets up the protractor pointer in protractor fixed surface, set up the arc recess rotatory along with the pointer between semi-circular skeleton in the middle of the protractor and the pointer, set up locking knob (second protractor sets up equally on the recess). The static pointer points to the first protractor 90, and the static plane formed by the "Z" -shaped rotatable shaft moving rod is parallel to the coronal plane, and the outer side of the static plane is fixedly connected with the protractor which is vertical to the first protractor and is vertical to the scanning coronal plane in the original position. The second protractor is perpendicular to the rotary shaft through a dot device, a pointer of the protractor is fixedly arranged on the rotary shaft, the pointer points to 90 in a static state, and the puncture guiding sleeve is fixedly arranged in front of the second protractor. The guide sleeve is provided with two puncture guide holes and a light source, wherein light rays penetrate through the center line of the guide holes in a static state, and the light source line and the first rotation axis are in the same plane and are parallel to the pointer of the second protractor. The light rays of the guide kit are adjusted to point on a YZ plane and/or an XY plane by rotating the Z-shaped axial rod and/or the second protractor round mandrel, the puncture direction is changed into three dimensions, the puncture in a three-dimensional space is guided, and the puncture guide hole is arranged for fixing the puncture needle.

The puncture instrument replaces manual visual inspection and bare-handed puncture, reduces human factors, improves puncture precision and success rate, and enlarges puncture range. The portable scanner has small volume, is easy to carry, is fixed on the scanning bed, has fixed spatial position relation with the scanning bed, and has the cost within the affordable range. Is particularly suitable for beginners with insufficient puncture experience.

Drawings

FIG. 1 is a view of the structure of the present invention;

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to fig. 1, a three-dimensional space puncture guiding instrument includes a base, a sliding device, a supporting device, a first protractor 51, a second protractor 52, a puncture guiding kit 7 and a shaft-shaped connecting rod 6; the sliding device is fixedly arranged on the base, one end of the supporting device is connected with the sliding device, and the other end of the supporting device is coaxially connected with the shaft-shaped connecting rod 6; a first protractor 51 is arranged on the shaft-shaped connecting rod 6 close to the supporting device, and the axis of the shaft-shaped connecting rod 6 is perpendicular to the circle center of the first protractor 51; the end of the shaft-shaped connecting rod 6 is connected with a second protractor 52, and the first protractor 51 and the second protractor 52 are vertical in space; the second protractor 52 vertically fixes the puncture guide suite 7 on the round mandrel.

The puncture guide kit 7 comprises an infrared light source 8 and a puncture guide hole 9; the infrared light source 8 is arranged at the top end of the second protractor 52, and two puncture guide holes 9 are vertically arranged at the bottom end of the second protractor 52.

The sliding device comprises a sliding chute 1 and a sliding block, the sliding chute 1 is fixedly arranged on a base, the base is fixed on the CT scanning bed, the sliding block is arranged in the sliding chute 1, and the supporting device is vertically fixed on the sliding block.

The supporting device comprises a vertical bracket 2, an arc bracket 4 and a horizontal bracket 3; vertical support 2's one end vertical fixation is on the slider, and arc support 4 is connected to vertical support 2's the other end, and horizontal stand 3 is connected to arc support 4, and vertical support 2 and horizontal stand 3 are the telescopic bracket, and vertical support 2 and horizontal stand 3 are just mutually perpendicular in the coplanar.

The vertical support 2 and the horizontal support 3 are both two tubes sleeved together, and the outer tube is provided with a locking knob 10.

The shaft-shaped connecting rod 6 where the first protractor 51 is located is provided with a pointer 11, and the pointer is attached to the surface of the first protractor 51 and can rotate or be fixed along with the shaft-shaped connecting rod 6; the puncture guide kit 7 is vertically fixed on the round spindle of the second protractor 52, and a pointer is arranged on the spindle and attached to the front surface of the second protractor 52, the pointer is parallel to the axis of the puncture guide kit 7, and can rotate or be fixed with the round spindle of the second protractor 52 along with the puncture guide kit 7.

The shaft-shaped connecting rod 6 is a Z-shaped rod.

A guiding method of a three-dimensional space puncture guiding instrument comprises the following steps:

step 1, before a certain focus is determined to be punctured, evaluating a body surface needle insertion area through an image;

step 2, before puncture positioning, a body surface positioner is arranged in a body surface region to be punctured, CT scanning is carried out for the first time, and parameters of a body surface puncture point, a puncture path and depth are formulated by an image post-processing platform according to the position of a target focus point; if the target focus and the body surface positioning point are on the same cross section, the included angle between the puncture path and the sagittal plane of the scanning plane is measured, the degree of a pointer on the puncture guide kit on the second protractor 52 is only required to be adjusted, and the CT machine with the infrared ray and the body surface positioner is utilized according to the scanning depth to mark the puncture point on the body surface; if the puncture path crosses a plurality of cross sections, namely the body surface positioning point and the target focus point are not in the same cross section, the cross section is rotated in a way of taking a line which is parallel to the scanning coronal plane and takes the body surface point to be punctured as the center of a circle as an axis to be vertical to the scanning sagittal plane, so that the body surface point to be punctured and the target focus point are in the same plane, the puncture path is designed, the rotation angle of the cross section is recorded, the included angle between the puncture path and the sagittal plane is recorded, the degree of a pointer on the axial connecting rod at the first protractor is adjusted according to the rotation angle of the cross section, the degree of a pointer on the puncture guide kit at the second protract;

step 3, after disinfection, towel paving and local anesthesia, fixing the puncture frame with the adjusted degrees on the sliding chute through the vertical support, and enabling the infrared point of the puncture guide kit to coincide with the puncture point through the expansion of the vertical support 2 and the horizontal support 3 and the sliding of the vertical support 2 on the sliding chute 1; placing the puncture needle in two puncture guide holes 9 of the puncture guide suite, and using the puncture needle to enter a final puncture stage; the puncture needle is fixed to be gone on along puncture guide external member direction of leading in whole puncture process.

Example (b):

the scanning bed comprises a base and is characterized in that the base is divided into two parts, one part of the base is fixed in an arc-shaped groove of a scanning bed, the outer side of the base is fixedly connected with a sliding groove 1, the sliding groove 1 is easy to disassemble, the base of the sliding groove 1 is provided with the base shape according to the appearance of the scanning bed, the base and the sliding groove can be stably matched, the length of the sliding groove 1 is 10-20cm, the sliding groove or the sliding rail is arranged on the surface of the sliding groove, the vertical support 2 is connected with the sliding groove 1, and the sliding groove can be realized through a precise sliding block and. The vertical support 2 is telescopic, the length is 18-30cm, a fixing knob is arranged on the outer side of the vertical support, the section of the vertical support is noncircular, the section of the arc support 4 is the same as the upper end of the vertical support 2, the arc support and the vertical support can be connected by a sleeve, the horizontal support 3 is the same as the vertical support 2 in shape and is about 5-8cm long, a locking knob is arranged on the outer end of the horizontal support, a protractor is welded on the inner end of the horizontal support, the sections of the vertical support 2, the arc support 4 and the horizontal support 3 are regular noncircular, the diameter of a gap tangent circle of an inner diameter is set to be 1.6-2.0cm, the radius of the protractor is 4-6cm, the protractor is hollowed, two arc surface frameworks are 0.5-1cm wide, the outer side of a shaft-shaped connecting rod 6 is connected with the horizontal support 3 through a bearing device, a pointer is fixedly welded on the, the far end of the angle gauge reaches the outer edge of the inner arc surface framework of the angle gauge, the arc lines of the angle gauge and the inner arc surface framework are consistent, an inverted U-shaped device which has the same width as the near section of the pointer, the same length as the width of the inner arc surface and is embedded on the concave surface of the pointer at the near section is arranged, the bottom end of the device is consistent with the outer edge of the inner arc surface, a temporary fixing knob is arranged behind the device, and a circular rotating knob is fixedly arranged on the shaft-shaped. The pointer, fixed knob and rotary knob arrangement is equally applicable to the second protractor. The shaft-shaped connecting rod 6 is Z-shaped, the length of a steering section is 1.5-3cm, the total length of a straight line is 5-10cm, and the length ratio of the inner section to the outer section is 1: 2-1:3, the outer diameter of the shaft-shaped connecting rod 6 is 0.8mm-10mm, the inner side end of the shaft-shaped connecting rod is welded to a second protractor dot, the second protractor is perpendicular to a plane formed by a Z shape of the shaft-shaped connecting rod 6, the two protractors are guaranteed to be mutually perpendicular in space, meanwhile, a central shaft vertically penetrates through the second protractor dot and a welded outer side section of the shaft-shaped connecting rod 6, the shaft is connected with the second protractor through a bearing device, the diameter of the shaft is 0.5-0.8cm, a puncture guide sleeve 7 is fixed to the shaft in a perpendicular mode through a triangular sleeve, a pointer is arranged on the shaft in front of the second protractor and attached to the surface of the second protractor, and the pointer is parallel to the axis of the puncture guide sleeve 7 and can rotate and be fixed with the puncture guide. The puncture guide kit 7 consists of a main rod with the length of about 5cm-7cm and the outer diameter of 1mm, two guide puncture holes fixed on the main rod and an infrared light source. The inner diameter of the puncture hole is according to the outer diameter of a conventional puncture needle 8G-16G on the market at present, the distance between two holes is 3-5cm, the lowest hole is located at the lowest part of a main rod of a puncture guide external member 7, the central connecting line of the lowest hole is located on the same plane with the outer side section of a shaft-shaped connecting rod 6 and the axis of a horizontal support 3, an infrared light source is arranged at the top end of the puncture guide external member 7, light is smaller than the inner diameter of the puncture hole, the light of the light is coincident with the central lines of two puncture guide holes, the light source can be set to be rotatable and detachable, and the whole. In order to reduce the weight of the whole puncture frame, the two protractors are hollowed out, and the whole fittings can be made of materials with strong rigidity, low density, wear resistance and strong mechanical property, such as pps, pom and the like. On one hand, the self weight is reduced, and on the other hand, the scanning bed can scan in and out along with the scanning bed without influencing the normal CT scanning effect. The bearings are pom plastic bearings (the specific selection and material are theoretically possible at present, and the practical application condition of the device is to be further described by data).

In this example: 1. the sliding block and the sliding groove or the sliding rail in the sliding groove 1 and the vertical support 2 can be integrally fixed on the sliding groove 1, and the vertical support 2 is connected with the sliding block through a sleeve at an angle of 3 or 4.

2. The other mode is that vertical support 2, arc support 4 and horizontal stand 3 can the integration preparation, guarantee that arc support 4 can for 90 degrees arcs.

3. The puncture guide kit can weld the light source on the central shaft behind the second protractor, but the puncture guide kit must be higher than the puncture guide hole, and the requirements are consistent with the above.

4. A second circular rotation knob may be provided on the back side of the protractor.

5. The two protractors can be fixed knobs provided with scales, and the rotatable knobs of the original protractors are marked to replace pointers.

Claims

1. The three-dimensional space puncture guide instrument is characterized by comprising a base, a sliding device, a supporting device, a first protractor (51), a second protractor (52), a puncture guide kit (7) and a shaft-shaped connecting rod (6); the sliding device is fixedly arranged on the base, one end of the supporting device is connected with the sliding device, and the other end of the supporting device is coaxially connected with the shaft-shaped connecting rod (6); a first protractor (51) is arranged on the shaft-shaped connecting rod (6) close to the supporting device, and the axis of the shaft-shaped connecting rod (6) is vertical to the circle center of the first protractor (51); the end part of the shaft-shaped connecting rod (6) is connected with a second protractor (52), and the first protractor (51) and the second protractor (52) are vertical in space; the second protractor (52) is vertically fixed with the puncture guide suite (7) on the round mandrel.

2. The three-dimensional space puncture guide instrument according to claim 1, wherein the puncture guide kit (7) comprises an infrared light source (8) and a puncture guide hole (9); the infrared light source (8) is arranged at the top end of the second protractor (52), and two puncture guide holes (9) are vertically arranged at the bottom end of the second protractor (52).

3. The three-dimensional space puncture guide instrument according to claim 1, wherein the sliding device comprises a sliding chute (1) and a sliding block, the sliding chute (1) is fixedly arranged on a base, the base is fixed on the CT scanning bed, the sliding block is arranged in the sliding chute (1), and the supporting device is vertically fixed on the sliding block.

4. The three-dimensional space puncture guide instrument according to claim 3, wherein the supporting device comprises a vertical bracket (2), an arc-shaped bracket (4) and a horizontal bracket (3); one end vertical fixation of vertical support (2) is on the slider, and arc support (4) are connected to the other end of vertical support (2), and horizontal stand (3) are connected in arc support (4), and vertical support (2) and horizontal stand (3) are telescopic bracket, and vertical support (2) and horizontal stand (3) are in the coplanar and mutually perpendicular.

5. The three-dimensional space puncture guide instrument according to claim 4, characterized in that the vertical support (2) and the horizontal support (3) are two tubes sleeved together, and the outer tube is provided with a locking knob (10).

6. The three-dimensional space puncture guide instrument according to claim 2, characterized in that the shaft-shaped connecting rod (6) where the first protractor (51) is located is provided with a pointer (11), and the pointer is attached to the surface of the first protractor (51) and can rotate or be fixed with the shaft-shaped connecting rod (6); the puncture guide suite (7) is vertically fixed on the round mandrel of the second protractor (52), a pointer is arranged on the shaft and attached to the front surface of the second protractor (52), the pointer is parallel to the axis of the puncture guide suite (7), and the pointer can rotate or be fixed with the round mandrel of the second protractor (52) along with the puncture guide suite (7).

7. The three-dimensional space puncture guide apparatus according to claim 1, wherein the shaft-like connecting rod (6) is a Z-shaped rod.