CN111358541A - Using method of vector positioning puncture auxiliary device - Google Patents
Using method of vector positioning puncture auxiliary device Download PDFInfo
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- CN111358541A CN111358541A CN202010375421.8A CN202010375421A CN111358541A CN 111358541 A CN111358541 A CN 111358541A CN 202010375421 A CN202010375421 A CN 202010375421A CN 111358541 A CN111358541 A CN 111358541A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
- A61B2017/3407—Needle locating or guiding means using mechanical guide means including a base for support on the body
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Abstract
The invention belongs to the technical field of medical instruments, and relates to a use method of a vector positioning puncture auxiliary device, wherein the intercostal number is taken as a transverse axis, 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 longitudinal axes, scanning data are analyzed according to a chest CT scanning image, a maximum tangent plane image of a target point is taken, the intercostal number and the body surface mark line which are close to the maximum tangent plane image are determined, then the intercostal number is taken as a puncture intercostal number, the parallel distance between the puncture position of the maximum tangent plane image of the target point and the body surface mark line which is closest to the body surface mark line is measured, the body surface puncture point is determined, the center and the puncture point are connected on the maximum tangent plane image of the target point; the puncture precision is improved, the working strength of doctors is reduced, the radiation damage of doctors and patients is reduced, the operation is simple and easy, the safety and the reliability are realized, the universality is good, the operation and the popularization are convenient, and the application environment is friendly.
Description
The technical field is as follows:
the invention belongs to the technical field of medical instruments, and relates to a use method of a vector positioning puncture auxiliary device, in particular to a use method of a vector positioning fixed puncture device which takes intercostal numbers as a transverse axis and seven body surface mark lines as a longitudinal axis, and is particularly suitable for small-area target puncture positioning.
Background art:
before the lung nodule disease is treated by operation, a target point needs to be found first, then follow-up operation is carried out, and the accuracy of the determined target point directly influences the difficulty and the success rate of the follow-up operation process; at present, the common method for determining the 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 or not 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 transferred from a CT room to an operating room, and the process is relatively long in distance and long in transfer time, so that the puncture needle is easy to shift and fall off, and the risk is relatively high; the process of determining the target point is complicated, the positioning of the small-area target point is difficult to determine, the problem of large operation wound area is easy to cause, the success rate and the working efficiency of the operation are low, and complications such as bleeding, foreign matter residue and the like are easy to generate. Therefore, a use method of the vector positioning puncture auxiliary device is sought, the auxiliary fixing puncture device is adopted, and the body surface puncture point is positioned in an auxiliary mode, so that the efficiency is improved, and the working intensity of doctors is reduced. Meanwhile, the use method of the vector positioning puncture auxiliary device is adopted, and the vector positioning puncture auxiliary device is applied to medical teaching or used for medical students to practice operation.
The invention content is as follows:
the invention aims to overcome the defects in the prior art, and provides a using method of a vector positioning puncture auxiliary device, so that the problems of difficult handheld operation and low positioning accuracy are solved, the problems of long time interval and complicated process of puncture are solved, the problem of inaccurate positioning of small-area target points is solved, and the working intensity and radiation exposure of medical staff are reduced.
In order to achieve the purpose, the invention relates to a using method of a vector positioning puncture auxiliary device, which is realized by means of a positioning puncture fixing device of which the main body structure comprises a fixing 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 needle base, an inner core needle safety valve, an inner core needle and an inner core needle boosting end, and comprises the following steps of (1) determining a surface puncture point, a puncture angle and a puncture needle inserting depth, (2) positioning the puncture fixing device, adjusting the puncture needle position and angle, (3) pushing the puncture needle, and (4) removing the outer needle and the fixing device:
(1) determining the surface puncture point, the puncture angle and the needle insertion depth: taking the number between ribs as a horizontal axis, and respectively taking 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 as a vertical axis; analyzing scanning data according to the chest CT scanning image, taking a maximum section image of a target point, determining the number of intercostals and a body surface marking line which are close to the maximum section image, taking the number of intercostals as the number of puncture intercostals, and measuring the parallel distance between the puncture position of the maximum section image of the target point and the nearest body surface marking line so as to determine a theoretical puncture point of the body surface; connecting the target point center and a theoretical puncture point on the maximum tangent plane image of the target point, and determining a theoretical puncture angle; and measuring the distance between the body surface puncture point and the target point as the puncture needle insertion depth.
(2) Fix a position piercing depth, adjust puncture needle position and angle: aligning a sagittal position mark line of the positioning puncture device with the closest body surface mark line, aligning a coronal position scale line with the closest intercostal number, adhering the positioning puncture device on the surface of the body surface, sliding the position of the angle fixer base, and stopping sliding when the distance from the center of the angle fixer base relative to the sagittal position mark line reaches the parallel distance between the maximum tangent plane image puncture position of the target point and the closest body surface mark line; and rotating the spherical angle fixer, and stopping rotating the spherical angle fixer when the applicable angle is exposed at the upper end face of the angle fixer base.
(3) Pushing the needle to insert: the hollow outer tube needle with the inner core needle penetrates through the puncture needle fixing tube and is close to the surface of a body surface, the scale mark numerical value of the hollow outer tube needle is recorded, the hollow outer tube needle base and the inner core needle safety valve are pressed and pushed along the puncture needle fixing tube, when the puncture needle inserting depth of the hollow outer tube needle reaches the distance between the measured body surface puncture point and the target point, the needle inserting 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 surface layer, and when the inner core needle boosting end contacts the hollow outer tube needle base, the pushing is stopped.
(4) Removing the external tube needle and the fixing device: the boosting end of the inner core needle is cut off, the hollow outer tube needle is drawn out, and the positioning puncture fixing device is taken down.
Preferably, the vector positioning puncture auxiliary device is applicable to accurate positioning of the target point within 15 mm.
The application method of the vector positioning puncture auxiliary device is realized by means of a positioning puncture fixing device, and the main structure of the device comprises the following steps: 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, and medical colloid is arranged on the back surface of the fixing base and can be flatly and naturally bent along with the angle of the sticking surface and stuck on the sticking surface; 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 strip 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 bending angle of the sticking surface; 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 made of metal materials, 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, 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 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.
Compared with the prior art, the invention accurately determines the positioning point and the puncture angle, fixes the puncture needle, reduces the operation difficulty, saves the time and improves the efficiency; the puncture accuracy is improved, and the working strength of doctors is reduced; reducing radiation damage to the physician; the method is simple and easy to operate, safe, reliable, good in universality, convenient to operate and popularize and environment-friendly in application.
Description of the drawings:
fig. 1 is a schematic view of the overall structure of an auxiliary positioning device used in the present invention.
Fig. 2 is a schematic cross-sectional view of the auxiliary positioning device used in the present invention at the position of a spherical angle holder.
FIG. 3 is a schematic diagram of the structure of the hollow outer needle and the hollow inner needle of the auxiliary positioning device used in the present invention.
The specific implementation mode is as follows:
the invention is further illustrated by the following specific examples in combination with the accompanying drawings.
Example 1:
the application method of the vector positioning puncture auxiliary device related to the embodiment is realized by the positioning puncture fixing device of which the main structure comprises a fixing base 1, a sagittal position mark line 2, a coronal position scale mark 3, a long hole 4, a slide way 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, and comprises the following steps of (1) determining a surface puncture point, a puncture angle and a puncture needle depth, (2) positioning the puncture fixing device, adjusting the puncture needle position and angle, (3) pushing the puncture needle, and (4) removing the outer needle and the fixing device:
(1) determining the surface puncture point, the puncture angle and the needle insertion depth: taking the number between ribs as a horizontal axis, and respectively taking 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 as a vertical axis; analyzing scanning data according to the chest CT scanning image, taking a maximum section image of a target point, determining the number of intercostals and a body surface marking line which are close to the maximum section image, taking the number of intercostals as the number of puncture intercostals, and measuring the parallel distance between the puncture position of the maximum section image of the target point and the nearest body surface marking line so as to determine a theoretical puncture point of the body surface; connecting the target point center and a theoretical puncture point on the maximum tangent plane image of the target point, and determining a theoretical puncture angle; and measuring the distance between the body surface puncture point and the target point as the puncture needle insertion depth.
(2) Fix a position piercing depth, adjust puncture needle position and angle: aligning a sagittal plane mark line 2 of the positioning puncture device with the nearest body surface mark line, aligning a coronal plane scale line 3 with the nearest intercostal number, adhering the positioning puncture device on the surface of the body surface, 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 mark line 2 reaches the parallel distance between the maximum tangent plane image puncture position of a target spot and the nearest body surface mark line; the spherical angle fixer 7 is rotated, and when an applicable angle is exposed at the upper end face of the angle fixer base 9, the rotation of the spherical angle fixer 7 is stopped.
(3) Pushing the needle to insert: the hollow outer needle 10 with the inner core needle 13 penetrates through the puncture needle fixing tube 8 and is close to the surface of a body surface, 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, when the puncture needle inserting depth of the hollow outer needle 10 reaches the distance between a measured body surface puncture point and a target point, the needle inserting is stopped, the inner core needle safety valve 12 is taken down, the inner core needle boosting end 14 is pushed, the inner core needle 13 is pushed into the surface layer, and when the inner core needle boosting end 14 contacts the hollow outer needle base 11, the pushing is stopped.
(4) Removing the external tube needle and the fixing device: the inner core needle boosting end 14 is cut off, the hollow outer tube needle 10 is drawn out, and the positioning puncture fixing device is taken down.
Preferably, the vector positioning puncture auxiliary device is applicable to accurate positioning of the target point within 15 mm.
The application method of the vector positioning puncture auxiliary device is realized by means of a positioning puncture fixing device, and the main structure of the device comprises the following steps: 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 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, and medical colloid is arranged on the back surface of the fixing base 1 and can be flatly naturally bent along with the angle of the pasting surface and pasted on the pasting surface; 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 strip 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 bending angle of the sticking surface; 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, 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, 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. The device is light and convenient, disposable, and the scale mark enables the operation repeatability to be high.
Example 2:
the operation steps of the using method of the vector positioning puncture auxiliary device related to this embodiment are the same as those of embodiment 1, and the inner core needle 13 of the positioning puncture device for realizing this method is made of an absorbable PGA medical material, so that it is avoided that residues are left in tissues to affect the operation success.
Example 3:
the operation steps of the using method of the vector positioning puncture auxiliary device related to the embodiment are the same as those of the embodiment 1, and the using method of the auxiliary device is used for medical teaching or medical learning exercise, and is operated on a dead human body or animal body, or is used for practice operation on a teaching prop, so that the operation level of medical staff is improved.
Example 4:
the application method of the vector positioning puncture auxiliary device related to the embodiment comprises the operation steps as in embodiment 2, when the height of a dead human body or a human body prop is below 1.5m, the width of the fixing base of the positioning puncture fixing device is selected to be 20mm, when the height of the dead human body or the human body prop is above 1.8m, the width of the selected fixing base is 30mm, and when the height of the dead human body or the human body prop of a patient is between 1.5 and 1.8m, the width of the selected fixing base is 25 mm.
Example 5:
the using method of the vector positioning puncture auxiliary device related to the embodiment has the same operation steps as the embodiment 1, and the method is suitable for accurately positioning the small lung nodule with the target point within 15 mm.
Claims (1)
1. The use method of the vector positioning puncture auxiliary device is characterized in that the method is realized by means of a positioning puncture fixing device of which the main body structure comprises a fixing base, a sagittal position mark line, a coronal position scale mark, a long hole, a slide way, a sphere through hole, a spherical angle fixer, a puncture needle fixing tube, an angle fixer base, a hollow outer needle base, an inner core needle safety valve, an inner core needle and an inner core needle boosting end, and comprises the following steps of (1) determining a surface puncture point, a puncture angle and a puncture needle inserting depth, (2) positioning the puncture fixing device, adjusting the puncture needle position and angle, (3) pushing the puncture needle, and (4) removing the outer needle and the fixing device:
(1) determining the surface puncture point, the puncture angle and the needle insertion depth: taking the number between ribs as a horizontal axis, and respectively taking 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 as a vertical axis; analyzing scanning data according to the chest CT scanning image, taking a maximum section image of a target point, determining the number of intercostals and a body surface marking line which are close to the maximum section image, taking the number of intercostals as the number of puncture intercostals, and measuring the parallel distance between the puncture position of the maximum section image of the target point and the nearest body surface marking line so as to determine a theoretical puncture point of the body surface; connecting the target point center and a theoretical puncture point on the maximum tangent plane image of the target point, and determining a theoretical puncture angle; and measuring the distance between the body surface puncture point and the target point as the puncture needle insertion depth.
(2) Fix a position piercing depth, adjust puncture needle position and angle: aligning a sagittal position mark line of the positioning puncture device with the closest body surface mark line, aligning a coronal position scale line with the closest intercostal number, adhering the positioning puncture device on the surface of the body surface, sliding the position of the angle fixer base, and stopping sliding when the distance from the center of the angle fixer base relative to the sagittal position mark line reaches the parallel distance between the maximum tangent plane image puncture position of the target point and the closest body surface mark line; and rotating the spherical angle fixer, and stopping rotating the spherical angle fixer when the applicable angle is exposed at the upper end face of the angle fixer base.
(3) Pushing the needle to insert: the hollow outer tube needle with the inner core needle penetrates through the puncture needle fixing tube and is close to the surface of a body surface, the scale mark numerical value of the hollow outer tube needle is recorded, the hollow outer tube needle base and the inner core needle safety valve are pressed and pushed along the puncture needle fixing tube, when the puncture needle inserting depth of the hollow outer tube needle reaches the distance between the measured body surface puncture point and the target point, the needle inserting 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 surface layer, and when the inner core needle boosting end contacts the hollow outer tube needle base, the pushing is stopped.
(4) Removing the external tube needle and the fixing device: the boosting end of the inner core needle is cut off, the hollow outer tube needle is drawn out, and the positioning puncture fixing device is taken down.
The application method of the vector positioning puncture auxiliary device is realized by a positioning puncture fixing device, and the main structure of the device comprises the following steps: 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, and medical colloid is arranged on the back surface of the fixing base and can be flatly and naturally bent along with the angle of the sticking surface and stuck on the sticking surface; 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 strip 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 bending angle of the sticking surface; 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 clamped on the slide rail 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, the diameter of the through hole can enable a part of the spherical angle fixer to penetrate through, 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; 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 made of metal materials, 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, 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 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.
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| CN209269834U (en) * | 2018-10-10 | 2019-08-20 | 上海契斯特医疗科技公司 | Positioning device is used in a kind of puncture |
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| CN2435052Y (en) * | 2000-03-03 | 2001-06-20 | 朱富国 | Magnetic resonance x-ray double-location leading hepatic portal vein and hepatic duct puncture device |
| CN2522037Y (en) * | 2002-02-23 | 2002-11-27 | 黄建文 | Pucture trocar |
| CN201668514U (en) * | 2010-05-29 | 2010-12-15 | 崔双友 | Held craniocerebral puncture positioning guide apparatus |
| CN104546134A (en) * | 2014-03-11 | 2015-04-29 | 尚鸣异 | Image-guided puncture device |
| US20170086813A1 (en) * | 2015-09-29 | 2017-03-30 | Ethicon Endo-Surgery, Llc | Positioning device for use with surgical instruments |
| CN206792465U (en) * | 2016-12-30 | 2017-12-26 | 崔智飞 | Ultrasound intervention operation sting device |
| CN106994035A (en) * | 2017-05-12 | 2017-08-01 | 德阳市人民医院 | Three-dimensional centrum puncture angle position indicator |
| CN209004147U (en) * | 2018-09-12 | 2019-06-21 | 唐海涛 | Hepatopathy section abdominocentesis auxiliary device |
| CN209269834U (en) * | 2018-10-10 | 2019-08-20 | 上海契斯特医疗科技公司 | Positioning device is used in a kind of puncture |
| CN109602482A (en) * | 2018-12-24 | 2019-04-12 | 莆田学院附属医院（莆田市第二医院） | 3D printing foramen intervertebrale lens target puncture percutaneous surgical guide |
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Application publication date: 20200703 |