CN211511994U - Auxiliary positioning and fixing device for pulmonary nodule puncture - Google Patents

Abstract

The utility model belongs to the technical field of medical instrument, a lung nodule puncture auxiliary positioning fixing device is related to, the major structure includes fixed baseplate, sagittal position mark line, coronal position scale mark line, rectangular hole, slide, spheroid through-hole, spherical angle fixer, pjncture needle fixed tube, angle fixer base, hollow outer needle base, inner core needle relief valve, inner core needle boosting end, sagittal position mark line is all provided with on two sides of the width direction of fixed baseplate, coronal position scale mark line is provided on one side of length direction, there is the slide of protrusion fixed baseplate long edge margin in both sides of rectangular hole, angle line is provided in the latitude direction of spheroid surface, the diameter of spherical recess and the spheroid external diameter interference fit of spherical angle fixer; the puncture precision is improved, the pain of a patient is relieved, the working strength of a doctor is reduced, the radiation damage of the doctor and the patient is reduced, the whole structure design is simple and ingenious, the principle is scientific, the puncture safety and the puncture reliability are safe and reliable, and the puncture safety and the puncture application environment are friendly.

Description

Auxiliary positioning and fixing device for pulmonary nodule puncture

The technical field is as follows:

the utility model belongs to the technical field of medical instrument, a lung nodule puncture assistance-localization real-time fixing device is related to, especially a puncture positioner with scale, adjustable and fixed needle tubing position and angle is particularly useful for the device of small area target spot puncture location.

Background art:

before the operation treatment of thoracic cavity diseases such as pulmonary nodules and the like, focus target points need to be found first, then the operation treatment is carried out, and the accuracy of the determined focus target points directly influences the difficulty and the success rate of the operation process; at present, the common method for determining the focus target point is to position a puncture needle under the guidance of CT or place a spring ring and the like, the body surface calibration puncture point and the puncture process are required to be carried out in a CT chamber, whether the puncture needle reaches the focus position is observed, if the puncture needle does not enter the focus area, the puncture correction is carried out on a patient according to the positions of the puncture needle and the focus area in the CT, the operation is repeated until the puncture needle enters the focus area, and then the subsequent operation is carried out; during this targeting procedure, both the physician and the patient are exposed to radiation, causing radiation damage; the puncture needle is manually held for operation, the puncture difficulty is high, the working strength of medical personnel is high, and the positioning accuracy is not high; after puncture, a patient with a metal puncture needle inserted into the patient needs to be transported to an operating room from a CT room, the process is long in distance and long in transportation time, the puncture needle is easy to shift and fall off, the risk is high, the patient is locally anesthetized, and pain is caused in the transportation process; the process of determining the target point is complicated, particularly the positioning of the small-area target point is not easy to determine, the problem of large operation wound area is easily caused, the success rate and the working efficiency of the operation are low, and complications such as bleeding, foreign matter residue and the like are easily generated; the current puncture operation is carried out after local anesthesia of a patient, and the patient is easy to be tense and fear, so that the puncture effect is influenced. Therefore, seek to design a pulmonary nodule puncture assistance-localization real-time fixing device, fixed pjncture needle, supplementary medical personnel carry out the puncture operation, improve the puncture accuracy of focus target point and the success rate of operation, improve efficiency of diagnosing, alleviate patient's misery, reduce doctor working strength.

The utility model has the following contents:

the utility model aims to overcome the shortcoming that prior art exists, the utility model provides a design lung nodule puncture assistance-localization real-time fixing device is proposed, it is difficult to solve handheld needle tubing puncture, the problem that the location accuracy is not high, it is long with operation time interval to solve the puncture, the loaded down with trivial details problem of process, it is big to solve the inaccurate problem that causes the operation wound area of small area target point location, the problem of operation failure, overcome the easy drawback that produces postoperative complication of current puncture method, reduce medical personnel working strength and radiation and expose, improve operation success rate and work efficiency.

In order to realize the above utility model purpose, the utility model relates to a pulmonary nodule puncture assistance-localization real-time fixing device's major structure includes: the puncture needle comprises a fixed base, a sagittal position mark line, a coronal position scale line, a long hole, a slideway, a sphere through hole, a spherical angle fixer, a puncture needle fixing tube, an angle fixer base, a hollow outer tube needle base, an inner core needle safety valve, an inner core needle and an inner core needle boosting end; the fixing base is of a rectangular structure made of medical soft plastic materials, the thickness of the fixing base is 1-3 mm, the length of the fixing base is 50-200 mm, the width of the fixing base is 20-30 mm, medical colloid is arranged on the back of the fixing base, and the fixing base can be smoothly bent naturally along with the physiological angle of a human body and is pasted on the chest skin of a patient; sagittal position mark lines are arranged on two sides of the fixing base in the width direction, one sagittal position mark line can be selected for use nearby as required, a coronal position scale line is arranged on one side of the fixing base in the length direction, and the scale line marking range is 0-200 mm; a long hole is arranged in the middle of the fixed base and parallel to the long edge, the long hole is a through hole, the length of the long hole is 45-145 mm, and the width of the long hole is 3-10 mm; the long edges of the two sides of the long hole are provided with slideways protruding out of the fixed base, the height of each slideway is 2-5 mm, the slideways and the fixed base are of an integrated structure and made of the same material, and the slideways can be naturally bent along with the physiological angle of a human body; the spherical angle fixer is of a spherical structure, the diameter of the spherical angle fixer is 4-15 mm, a spherical through hole with a central shaft passing through the spherical center is formed in the spherical body, the diameter of the spherical through hole is 1-3 mm, and an angle line is formed in the latitude direction of the outer surface of the spherical body by taking the central shaft of the spherical through hole as an axis; the outer diameter of a puncture needle fixing tube with the length of 20-50 mm is the same as the diameter of the sphere through hole, and the puncture needle fixing tube penetrates into the sphere through hole and is fixed on the spherical angle fixer; the angle fixer base is a cube which is clamped on the slide way and provided with a spherical groove, the diameter of the spherical groove is in interference fit with the outer diameter of a sphere of the spherical angle fixer, the spherical angle fixer can be rotated only by using large rotating force, when the spherical angle fixer rotates without force, the spherical angle fixer is fixed relative to the spherical groove, a through hole is formed in the center of the bottom of the spherical groove of the angle fixer base, part of the spherical angle fixer can penetrate through the diameter of the through hole, and the distance from the lower bottom end of the spherical outline of the spherical angle fixer to the lower bottom surface of the fixed base is 1-2 mm, so that a puncture needle can penetrate smoothly; the hollow outer tube needle is of a hollow tube structure made of hard medical transparent plastic materials, the tube body of the hollow outer tube needle is marked with scales so as to be convenient for confirming the puncture depth, the front end part of the hollow outer tube needle is of a needle point structure so as to be convenient for puncturing, the rear end part of the hollow outer tube needle is fixedly provided with a hollow outer tube needle base so as to be convenient for pushing the hollow outer tube needle to puncture, and the center of the hollow outer tube needle base is provided with a through hole which is communicated with an inner hole of; one end of an inner core needle arranged in the hollow outer tube needle is of a three-claw barb structure so as to be fixed in tissues, and the other end of the inner core needle is an inner core needle boosting end which is of a boss structure so as to be convenient for pushing the inner core needle to insert; an inner core needle safety valve which can be opened and buckled is arranged on the base of the hollow outer tube needle and is used for fixing the inner core needle and protecting an inner hole from being polluted, and two ends of the inner core needle safety valve are respectively buckled on a boss of the base of the hollow outer tube needle and a boss of the boosting end of the inner core needle so as to fix the hollow outer tube needle and the inner core needle together; the length of the inner core needle is longer than that of the hollow outer tube needle by the length of an inner core needle safety valve.

When the utility model is used, the number between ribs is taken as the horizontal axis, and seven body surface mark lines of the body surface sternum line, the clavicle midline, the anterior axillary line, the axillary midline, the posterior axillary line, the scapula line and the posterior median line are taken as the longitudinal axis; analyzing scanning data according to a chest CT scanning image, taking a maximum section image of a focus target point of a pulmonary nodule, determining the intercostal number and a body surface mark line which are close to the maximum section image, and then measuring the parallel distance between the puncture position of the maximum section image of the focus target point and the body surface mark line which is closest to the maximum section image by taking the intercostal number as the puncture intercostal number to determine a body surface puncture point; determining a puncture angle on the maximum section image of the focus target point, and measuring the distance between the body surface puncture point and the target point as the puncture needle insertion depth; aligning the sagittal position marking line of the device with the closest body surface marking line, aligning the coronal position scale line of the device with the closest intercostal number, adhering the device on the chest body surface of a patient, sliding the position of the angle fixer base, and stopping sliding when the distance between the center of the angle fixer base and the sagittal position marking line reaches the parallel distance between the maximum section image puncture position of the focus target point and the closest body surface marking line; rotating the spherical angle fixer, and stopping rotating the spherical angle fixer when an applicable angle is exposed at the upper end face of the angle fixer base; the hollow outer needle with the inner core needle penetrates through the puncture needle fixing tube and is in contact with the skin surface of a patient, the scale mark numerical value of the hollow outer needle is recorded, the base of the hollow outer needle and the safety valve of the inner core needle are pressed and pushed along the puncture needle fixing tube, and when the puncture depth of the hollow outer needle reaches the measured distance between the body surface puncture point and the target point, the needle insertion is stopped; the inner core needle safety valve is taken down, the inner core needle boosting end is pushed, the inner core needle is pushed into the body, when the inner core needle boosting end contacts the base of the hollow outer tube needle, the pushing is stopped, the inner core needle boosting end is cut off, the hollow outer tube needle is pulled out, the inner core needle is remained in the body of a patient, the puncture is completed, and the next operation is carried out.

Compared with the prior art, the utility model can accurately determine the positioning point and the puncture angle, fix the puncture needle, reduce the operation difficulty, reduce the operation time of the whole operation and improve the diagnosis and treatment efficiency; the puncture precision is improved, the puncture accuracy of focus target points and the success rate of operations are improved, the pain of a patient is relieved, and the working intensity of a doctor is reduced; complications are reduced, radiation damage of doctors and patients is reduced, and the risk of puncture is reduced; the device has the advantages of simple and ingenious overall structural design, scientific principle, safety, reliability, good universality, convenient operation and popularization and environment-friendly application.

Description of the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the cross-sectional structure of the spherical angle fixer according to the present invention.

Fig. 3 is a schematic view of the structural principle of the hollow outer tube needle and the inner core needle of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example 1:

the pulmonary nodule puncture auxiliary positioning fixing device that this embodiment relates to, its major structure includes: the puncture needle comprises a fixed base 1, a sagittal position mark line 2, a coronal position scale line 3, a long hole 4, a slideway 5, a sphere through hole 6, a spherical angle fixer 7, a puncture needle fixing tube 8, an angle fixer base 9, a hollow outer needle 10, a hollow outer needle base 11, an inner core needle safety valve 12, an inner core needle 13 and an inner core needle boosting end 14; the fixing base 1 is a rectangular structure made of medical soft plastic materials, the thickness is 1-3 mm, the length is 50-200 mm, the width is 20-30 mm, and medical colloid is arranged on the back of the fixing base 1 and can be smoothly and naturally bent along with the physiological angle of a human body and adhered to the chest skin of a patient; sagittal position mark lines 2 are arranged on two sides of the fixed base 1 in the width direction, one sagittal position mark line 2 can be selected for use nearby as required, a coronal position scale line 3 is arranged on one side of the fixed base in the length direction, and the scale line marking range is 0-200 mm; a long-strip hole 4 is arranged in parallel with the long edge at the midpoint of the fixed base 1, the long-strip hole 4 is a through hole, the length is 45-145 mm, and the width is 3-10 mm; the long edges of the two sides of the long hole 4 are provided with slideways 5 protruding out of the fixed base 1, the height of each slideway 5 is 2-5 mm, the slideways 5 and the fixed base 1 are of an integral structure and made of the same material, and the slideways can be naturally bent along with the physiological angle of a human body; the spherical angle fixer 7 is of a spherical structure, the diameter of the spherical angle fixer is 4-15 mm, a spherical through hole 6 with a central shaft passing through the spherical center is arranged on the spherical body, the diameter of the spherical through hole 6 is 1-3 mm, and an angle line is arranged on the outer surface of the spherical body in the latitude direction with the central shaft of the spherical through hole 6 as the axis; the outer diameter of the puncture needle fixing tube 8 with the length of 20-50 mm is the same as the diameter of the sphere through hole 6, and the puncture needle fixing tube 8 penetrates into the sphere through hole 6 and is fixed on the spherical angle fixer 7; the angle fixer base 9 is a cube with a spherical groove clamped on the slideway 5, the diameter of the spherical groove is in interference fit with the outer diameter of a sphere of the spherical angle fixer 7, the spherical angle fixer 7 can be rotated only by using large rotation force, the spherical angle fixer 7 is fixed relative to the spherical groove when the spherical angle fixer rotates without force, a through hole is arranged at the center of the bottom of the spherical groove of the angle fixer base 9, the diameter of the through hole can enable a part of the spherical angle fixer 7 to pass through, and the distance from the lower bottom end of the spherical outline of the spherical angle fixer 7 to the lower bottom surface of the fixed base 1 is 1-2 mm, so that a puncture needle can puncture smoothly; the hollow outer tube needle 10 is of a hollow tube structure made of hard medical transparent plastic materials, scales are marked on the tube body of the hollow outer tube needle 10 to facilitate the confirmation of the puncture depth, the front end part of the hollow outer tube needle 10 is of a needle point structure made of metal materials to facilitate puncture, a hollow outer tube needle base 11 is fixedly arranged at the rear end part of the hollow outer tube needle 10 to facilitate the pushing of the hollow outer tube needle 10 for puncture, and a through hole is formed in the center of the hollow outer tube needle base 11 and communicated with an inner hole of the hollow outer tube needle 10; one end of an inner core needle 13 arranged in the hollow outer tube needle 10 is of a three-claw barb structure so as to be fixed in tissues, and the other end of the inner core needle 13 is an inner core needle boosting end 14 which is of a boss structure so as to be convenient for pressing and pushing the inner core needle 13 to insert; an inner core needle safety valve 12 which can be opened and buckled is arranged on a hollow outer tube needle base 11 and used for fixing an inner core needle and protecting an inner hole from being polluted, and two ends of the inner core needle safety valve 12 are buckled on a boss of the hollow outer tube needle base 11 and a boss of an inner core needle boosting end 14 respectively to fix a hollow outer tube needle 10 and an inner core needle 13 together; the length of the inner core needle 13 is longer than the length of the hollow outer needle 10 by the length of an inner core needle safety valve 12. The spherical angle fixer 7 and the angle fixer base 9 are made of metal materials or made of the same material as the fixed base 1. Preferably, the material of the fixed base 1 is medical PP plastic. The angle line marked on the outer surface of the sphere is from zero to 90 degrees, and when the puncture needle fixing tube 8 is in a vertical state, the contact line between the upper end face of the angle fixer base 9 and the outer surface of the sphere is a zero angle line.

When the device is used, the intercostal numbers are taken as the horizontal axis, and seven body surface mark lines of a body surface sternum line, a clavicle midline, an axillary anterior line, an axillary midline, an axillary posterior line, a scapula line and a posterior median line are taken as the vertical axis; analyzing scanning data according to a chest CT scanning image, taking a maximum section image of a focus target point of a pulmonary nodule, determining the intercostal number and a body surface mark line which are close to the maximum section image, and then measuring the parallel distance between the puncture position of the maximum section image of the focus target point and the body surface mark line which is closest to the maximum section image by taking the intercostal number as the puncture intercostal number to determine a body surface puncture point; determining a puncture angle on the maximum section image of the focus target point, and measuring the distance between the body surface puncture point and the target point as the puncture needle insertion depth; aligning the sagittal plane marking line 2 of the device with the nearest body surface marking line, aligning the coronal plane scale line 3 of the device with the nearest intercostal number, adhering the device on the chest body surface of a patient, sliding the position of an angle fixer base 9, and stopping sliding when the distance between the center of the angle fixer base 9 and the sagittal plane marking line 2 reaches the parallel distance between the maximum section image puncture position of a focus target point and the nearest body surface marking line; rotating the spherical angle fixer 7, and stopping rotating the spherical angle fixer 7 when an applicable angle is exposed at the upper end face of the angle fixer base 9; the hollow outer needle 10 with the inner core needle 13 penetrates through the puncture needle fixing tube 8 and contacts with the skin surface of a patient, the scale mark numerical value of the hollow outer needle 10 is recorded, the hollow outer needle base 11 and the inner core needle safety valve 12 are pressed and pushed along the puncture needle fixing tube 8, and when the puncture depth of the hollow outer needle 10 reaches the distance between the measured body surface puncture point and the target point, the needle insertion is stopped; taking down the safety valve 12 of the inner core needle, pushing the boosting end 14 of the inner core needle, pushing the inner core needle 13 into the body, stopping pushing when the boosting end 14 of the inner core needle contacts the base 11 of the hollow outer tube needle, cutting off the boosting end 14 of the inner core needle, drawing out the hollow outer tube needle 10, simultaneously leaving the inner core needle 13 in the body of the patient, completing puncture, and entering the next operation. The device is particularly suitable for accurate positioning of thoracic cavity puncture with focus target points within 15 mm. Preferably, when puncture is performed in operation, puncture is performed in a general anesthesia state of a patient; when puncturing and drawing liquid, puncturing is carried out on a patient in a general anesthesia state or a local anesthesia state. Preferably, the width of the selected fixing base 1 is 20mm when the height of the patient is below 1.5m, the width of the selected fixing base 1 is 30mm when the height of the patient is above 1.8m, and the width of the selected fixing base 1 is 25mm when the height of the patient is between 1.5-1.8 m.

Example 2:

the main structure of the device for assisting in positioning and fixing pulmonary nodule puncture according to the present embodiment is the same as that of embodiment 1, the inner core needle 13 is made of PGA medical material which can be absorbed by human body, and if residues are left in the body after an operation, the residues can be absorbed by the human body, thereby preventing the residues left in the body from affecting the recovery of patients or causing other diseases.

Claims (2)

1. A pulmonary nodule puncture auxiliary positioning fixing device is characterized in that a main body structure comprises a fixing base, a sagittal marker line, a coronal scale line, a long hole, a slideway, a sphere through hole, a spherical angle fixer, a puncture needle fixing tube, an angle fixer base, a hollow outer tube needle base, an inner core needle safety valve, an inner core needle and an inner core needle boosting end, wherein the fixing base is of a rectangular body structure made of medical soft plastic materials, the thickness of the fixing base is 1-3 mm, the length of the fixing base is 50-200 mm, the width of the fixing base is 20-30 mm, and the back of the fixing base is provided with medical colloid; sagittal position mark lines are arranged on two sides of the fixed base in the width direction, coronal position scale lines are arranged on one side of the fixed base in the length direction, and the scale line marking range is 0-200 mm; a long hole is arranged in the middle of the fixed base and parallel to the long edge, the long hole is a through hole, the length of the long hole is 45-145 mm, and the width of the long hole is 3-10 mm; the long edges of the two sides of the long hole are provided with slideways protruding out of the fixed base, the height of each slideway is 2-5 mm, the slideways and the fixed base are of an integrated structure and made of the same material, and the slideways can be naturally bent along with the physiological angle of a human body; the spherical angle fixer is of a spherical structure, the diameter of the spherical angle fixer is 4-15 mm, a spherical through hole with a central shaft passing through the spherical center is formed in the spherical body, the diameter of the spherical through hole is 1-3 mm, and an angle line is formed in the latitude direction of the outer surface of the spherical body by taking the central shaft of the spherical through hole as an axis; the outer diameter of a puncture needle fixing tube with the length of 20-50 mm is the same as the diameter of the sphere through hole, and the puncture needle fixing tube penetrates into the sphere through hole and is fixed on the spherical angle fixer; the angle fixer base is a cube which is clamped on the slide way and is provided with a spherical groove, the diameter of the spherical groove is in interference fit with the outer diameter of a sphere of the spherical angle fixer, a through hole is formed in the center of the bottom of the spherical groove of the angle fixer base, and the distance from the lower bottom end of the spherical outer contour of the spherical angle fixer to the lower bottom surface of the fixed base is 1-2 mm; the hollow outer tube needle is of a hollow tube structure made of hard medical transparent plastic materials, the tube body of the hollow outer tube needle is marked with scales, the front end part of the hollow outer tube needle is of a needle point structure, the rear end part of the hollow outer tube needle is fixedly provided with a hollow outer tube needle base, and the center of the hollow outer tube needle base is provided with a through hole communicated with an inner hole of the hollow outer tube needle; one end of an inner core needle arranged in the hollow outer tube needle is of a three-claw barb structure, and the other end of the inner core needle is an inner core needle boosting end of a boss structure; an inner core needle safety valve which can be opened and buckled is arranged on the hollow outer tube needle base, and two ends of the inner core needle safety valve are buckled on a boss of the hollow outer tube needle base and a boss of the inner core needle boosting end respectively to fix the hollow outer tube needle and the inner core needle together; the length of the inner core needle is longer than that of the hollow outer tube needle by the length of an inner core needle safety valve.

2. The device of claim 1, wherein the spherical angle fixer and the angle fixer base are made of metal or made of the same material as a fixing base made of medical PP plastic; the angle line marked on the outer surface of the sphere is from zero to 90 degrees, and when the puncture needle fixing tube is in a vertical state, the contact line between the upper end surface of the angle fixer base and the outer surface of the sphere is a zero angle line.

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