CN111658097B - Puncture template with adjustable angle - Google Patents
Puncture template with adjustable angle Download PDFInfo
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- CN111658097B CN111658097B CN202010711998.1A CN202010711998A CN111658097B CN 111658097 B CN111658097 B CN 111658097B CN 202010711998 A CN202010711998 A CN 202010711998A CN 111658097 B CN111658097 B CN 111658097B
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- guide wheel
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- wheel
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- 230000000717 retained effect Effects 0.000 claims description 2
- 238000002679 ablation Methods 0.000 abstract description 5
- 238000002560 therapeutic procedure Methods 0.000 abstract description 5
- 238000002513 implantation Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 230000003902 lesion Effects 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 6
- 206010028980 Neoplasm Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010317 ablation therapy Methods 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 210000002307 prostate Anatomy 0.000 description 2
- 210000003689 pubic bone Anatomy 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0241—Pointed or sharp biopsy instruments for prostate
-
- 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
- A61B17/3468—Trocars; Puncturing needles for implanting or removing devices, e.g. prostheses, implants, seeds, wires
-
- 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
-
- 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
- A61B2017/3413—Needle locating or guiding means guided by ultrasound
Abstract
The invention relates to an angle-adjustable puncture template, which comprises a template main body and one or more guide wheels, wherein the guide wheels are rotatably arranged in the template main body; a first guide hole for the puncture needle to pass through is formed in the guide wheel; the axial direction of the first guide hole changes with the rotation of the guide wheel. The puncture template with the adjustable angle provided by the embodiment of the invention can adapt to puncture requirements of different angles by arranging the guide wheel, and the efficiency and puncture precision of minimally invasive therapies such as puncture ablation, particle implantation and the like are improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an angle-adjustable puncture template.
Background
Cancer is a major disease that endangers human health. The traditional cancer treatment method, the recently developed thermal ablation therapy characterized by minimally invasive ablation, and the ablation therapy such as particle implantation have certain limitations on clinical application due to the limitation of factors such as indications, contraindications, treatment side effects, thermal effects and the like. In recent years, with the continuous development of pulsed bioelectricity, electric field pulses have received wide attention with their non-thermal, minimally invasive biomedical utility, and are gradually applied to clinical treatment of tumors.
The minimally invasive therapy usually needs to be performed by a puncture needle reaching a lesion area in a human body, and the puncture needle usually needs to be positioned under the guidance of ultrasound or other medical imaging equipment in cooperation with a puncture template so as to reach an expected target position. The structure of a conventional manual puncture template 1000 is shown in fig. 1, a group of parallel guide holes 1002 with fixed intervals is arranged on a puncture template main body 1001, and when a doctor performs minimally invasive therapies such as puncture ablation or particle implantation, the doctor needs to perform positioning and guiding by combining the puncture template matched with an ultrasonic image according to the focus position of different patients under the guidance of the ultrasonic image, so that a puncture needle can accurately reach the focus position.
However, due to individual differences, part of the patient's focal area may be obscured by the pubic bone, for example when perineal prostate puncture ablation is performed. At this moment, the needle inserting angle of the part is not parallel to the needle inserting angles of other non-shielding parts, the puncture needle needs to be tilted upward or tilted downward by a certain angle, the traditional parallel guide hole puncture template cannot be simultaneously inserted into a plurality of puncture needles with different angles, and the traditional puncture template cannot improve the puncture precision but can prevent the puncture needle from tilting upward or tilting downward to enter a focus position shielded by pubis, so that the operation cannot be smoothly carried out.
Therefore, a puncture template capable of meeting different needle insertion angles is needed to solve the problem.
Disclosure of Invention
In order to solve the technical problem that the needle inserting angle of the puncture template is not adjustable, the invention provides the puncture template with the adjustable angle, which comprises a template main body and one or more guide wheels,
the guide wheel is rotatably arranged in the template main body;
a first guide hole for the puncture needle to pass through is formed in the guide wheel;
the axial direction of the first guide hole changes with the rotation of the guide wheel.
In one embodiment, the guide wheel has a plate-shaped body and a rotating shaft, and an axis of the first guide hole is perpendicular to an axis of the rotating shaft; the axis of the guide wheel is parallel to the plate surface of the template main body.
In one embodiment, the rotation shaft is protrudingly provided on the first side of the plate-shaped body, and the first guide hole is opened in a radial direction on the rotation shaft.
In one embodiment, guide flanges through which the first guide holes extend are further protrusively provided at both radial sides of the rotary shaft.
In one embodiment, a rotating shaft limiting hole is further formed in the plate-shaped main body;
the guide wheels are multiple and comprise at least one pair of guide wheels arranged side by side, the guide wheels comprise a first guide wheel and a second guide wheel,
the first guide wheel and the second guide wheel are arranged in a mode that first sides of the first guide wheel and the second guide wheel are opposite, a rotating shaft of the first guide wheel is inserted into a rotating shaft limiting hole of the second guide wheel, and a rotating shaft of the second guide wheel is inserted into a rotating shaft limiting hole of the first guide wheel, so that the first guide wheel and the second guide wheel limit rotating angles with each other.
In one embodiment, the plate-shaped body has a circular plate shape, and the rotation shaft is disposed at a central position of the circular plate-shaped body.
In one embodiment, the guide wheel is arranged on a side rim visible from the front side of the template body, and is at least partially provided with a first scale mark; and the front surface of the template main body is provided with mark scale marks corresponding to the first scale marks.
In one embodiment, the template body is provided with a through hole penetrating through the front surface and the rear surface thereof;
the template main part includes front shroud and back shroud, the front shroud with the back shroud inlays to be established in the through-hole of template main part, will one or more leading wheels are spacing front shroud with between the back shroud.
In one embodiment, guide wheel positioning grooves having a shape matching a rotation locus of the plate-shaped body of the guide wheel are provided on the rear side of the front cover plate and the front side of the rear cover plate, respectively, which are opposite to each other, and an opening is provided in the guide wheel positioning groove, and the guide wheel defines a rotation angle by contact of the guide flange with an edge of the opening.
In one embodiment, the guide flange is held at a predetermined distance from the end of the rotation shaft.
In one embodiment, the angularly adjustable puncture template further comprises a guide wheel locking knob, wherein at least a part of the rod wall of a knob rod of the guide wheel locking knob is provided with threads;
a second fixing hole communicated with the surface of the plate-shaped main body of the corresponding guide wheel is formed in the side wall of the template main body, and threads are arranged on at least part of the hole wall of the second fixing hole;
when the guide wheel locking knob is screwed into the second fixing hole, the front end of the knob stem can abut against the plate-like body surface of the corresponding guide wheel.
In one embodiment, the front cover plate and the rear cover plate are provided with a plurality of second guide holes which are parallel to each other and penetrate through the front cover plate and the rear cover plate.
In one embodiment, the template body is provided with a through hole penetrating through the front surface and the rear surface thereof, and the through hole has a shape corresponding to the one or more guide wheels to limit the one or more guide wheels in the through hole.
In one embodiment, the angularly adjustable puncture template further comprises a guide wheel positioning shaft;
guide wheel positioning holes are also formed in the plate-shaped main bodies of the first guide wheel and the second guide wheel;
the first guide wheels and the second guide wheels are arranged in a staggered mode in a mode that the first sides of the first guide wheels and the second guide wheels are opposite, so that guide wheel positioning holes of the first guide wheels and guide wheel positioning holes of the second guide wheels are not shielded by the guide wheels on the opposite sides in the arrangement direction of the first guide wheels and the second guide wheels;
a third fixing hole communicated with the guide wheel positioning hole of the first guide wheel and a fourth fixing hole communicated with the guide wheel positioning hole of the second guide wheel are formed in the side wall of the template main body;
the first guide wheel positioning shaft is inserted into the third fixing hole and penetrates through the guide wheel positioning hole of the first guide wheel, and the second guide wheel positioning shaft is inserted into the fourth fixing hole and penetrates through the guide wheel positioning hole of the second guide wheel.
In one embodiment, the rotating shaft limiting hole and the guide wheel positioning hole are oppositely arranged on two sides of the rotating shaft.
The invention has the beneficial effects that: the puncture template with the adjustable angle provided by the embodiment of the invention can adapt to puncture requirements of different angles by arranging the guide wheel, and improves the efficiency and puncture precision of minimally invasive therapies such as puncture ablation, particle implantation and the like. Furthermore, the puncture angle can be quickly adjusted through the scale marks on the puncture template. The puncture template provided by the embodiment of the invention can also be applied to prostate biopsy or puncture therapy and tissue biopsy of other parts.
Drawings
FIG. 1 is a schematic view of a prior art piercing template;
FIG. 2 is a front view of an angularly adjustable piercing template according to a first embodiment of the present invention;
FIG. 3 is a rear elevational view of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 4 is an exploded view of an angularly adjustable piercing template according to a first embodiment of the present invention;
FIG. 5a is a perspective view of one side of the guide wheel of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 5b is a perspective view of the other side of the guide wheel of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 5c is a cross-sectional view of the guide wheel of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 6 is an assembled view of two guide wheels of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 7a is a front view of the back cover plate of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 7b is a rear elevational view of the front cover plate of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 8 is a perspective view of the template body of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 9 is a cross-sectional view through the thickness of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 10 is an enlarged partial view of the front cover plate of the angularly adjustable piercing template on its template body according to the first embodiment of the present invention;
FIG. 11 is a view showing a state of use of the angularly adjustable piercing template according to the first embodiment of the present invention;
FIG. 12 is a front view of an angularly adjustable piercing template according to a second embodiment of the present invention;
FIG. 13 is a rear elevational view of an angularly adjustable piercing template according to a second embodiment of the present invention;
FIG. 14 is an exploded view of an angularly adjustable piercing template according to a second embodiment of the present invention;
FIG. 15a is a front view of one side of the axis of rotation of the guide wheel of the angularly adjustable piercing template according to the second embodiment of the present invention;
FIG. 15b is a perspective view of one side of the guide wheel of the angularly adjustable piercing template according to the second embodiment of the present invention;
FIG. 15c is another side elevational view of the guide wheel of the angularly adjustable piercing template according to the second embodiment of the present invention;
FIG. 15d is a cross-sectional view of the guide wheel of the angularly adjustable piercing template according to the second embodiment of the present invention;
FIG. 16 is a cross-sectional view through the thickness of an angularly adjustable piercing template according to a second embodiment of the present invention;
FIG. 17a is an elevational view of the assembled guide wheel assembly of the angularly adjustable piercing template according to the second embodiment of the present invention;
FIG. 17b is a perspective view of the assembled structure of the guide wheel assembly of the angularly adjustable piercing template according to the second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. Those skilled in the art will appreciate that the present invention is not limited to the drawings and the following examples.
As used herein, the term "include" and its various variants are to be understood as open-ended terms, which mean "including, but not limited to. The term "based on" and the like may be understood as "based at least on". The terms "first", "second", "third", etc. are used merely to distinguish different features and have no essential meaning. The terms "left", "right", "middle" and the like are used only to indicate a positional relationship between relative objects.
The embodiment of the invention provides an angle-adjustable puncture template, which comprises a template main body 101 and one or more guide wheels 102, wherein the guide wheels 102 are rotatably arranged in the template main body 101; the guide wheel 102 is provided with a first guide hole 111 for the puncture needle to pass through; the axial direction of the first guide hole 111 changes with the rotation of the guide wheel 102.
Specifically, in the first embodiment of the present invention, as shown in fig. 2 to 11, the angularly adjustable puncture template 100 includes a template body 101 having a front cover plate 103 and a rear cover plate 104, a guide wheel 102, a cover plate locking knob 105, and a guide wheel locking knob 106.
A through hole 107 is provided on the template body 101 through the front and rear surfaces thereof. The template main body 101 is further provided with a plurality of second guide holes 108, the second guide holes 108 penetrate through the front surface and the rear surface of the template main body 101, and the plurality of second guide holes 108 are parallel to each other and have a preset distance, for example, the distance between the guide holes is 0.5 mm. The puncture needle can be positioned through the second guiding hole 108 under the guidance of the ultrasound or other medical imaging equipment to reach the desired target position, which is also the guiding method adopted in the prior art. Further, on the front surface edge of the template body 101, coordinate values are marked corresponding to the plurality of second guide holes 108 parallel to each other for recording the puncture position.
The structure of the guide wheel 102 of the preferred embodiment of the present invention is shown in fig. 5a to 5 c. The guide wheel 102 has a plate-shaped body 109 and a rotation shaft 110 provided to protrude on a first side of the plate-shaped body 109, and an axis of the first guide hole 111 is perpendicular to an axis of the rotation shaft 110. In the present embodiment, the plate-shaped body 109 is preferably in a circular plate shape, and the rotation shaft 110 is disposed at a central position of the circular plate-shaped body 109. The first guide hole 111 is formed in the protruding rotating shaft 110 along the radial direction of the rotating shaft 110, and the first guide hole 111 is a straight hole. Guide flanges 112 through which the first guide holes 111 extend are further protrudingly provided at both sides in a radial direction of the rotation shaft 110, and the guide flanges 112 are maintained at a predetermined distance from the end 110a of the rotation shaft 110. A shaft limiting hole 113 is formed in the plate-shaped main body 109 at the side of the shaft 110, and in this embodiment, two side portions of the shaft limiting hole 113 are symmetrically disposed opposite to the two guide flanges 112 on the shaft 110, as shown in fig. 5 a.
In this embodiment, the guide wheels 102 are plural, and include two pairs of guide wheels arranged side by side, each pair of guide wheels includes a first guide wheel and a second guide wheel, as shown in fig. 6. The first guide wheel and the second guide wheel are arranged in a mode that the first sides of the first guide wheel and the second guide wheel are opposite, the rotating shaft 110 of the first guide wheel is inserted into the rotating shaft limiting hole 113 of the second guide wheel, and the rotating shaft 110 of the second guide wheel is inserted into the rotating shaft limiting hole 113 of the first guide wheel, so that the first guide wheel and the second guide wheel can limit a rotating angle with each other. To facilitate subsequent use of the guide wheel locking knob 106 to restrain the guide wheel 102, the first guide wheel and the second guide wheel are staggered with their first sides facing each other, i.e., one of the first guide wheel and the second guide wheel is not completely covered by the other in the arrangement direction of the first guide wheel and the second guide wheel. The rotation amplitude of the first guide wheel and the second guide wheel can be limited by changing the size of the rotating shaft limiting hole 113. In the case that the guide flanges 112 forming part of the first guide holes 111 are protrudingly provided at both sides in the radial direction of the rotating shaft 110, all or part of the portion of the rotating shaft 110 higher than the guide flanges 112 is inserted into the opposite shaft stopper hole 113. In the scheme of this embodiment, first leading wheel sets up with second leading wheel with its relative mode of first side is crisscross, spacing each other, and the structure is more compact.
In the present embodiment, the guide wheel 102 is limited in the through hole 107 by the front cover plate 103 and the rear cover plate 104. The front cover plate 103 and the rear cover plate 104 are embedded in the through hole 107 of the template main body 101, and two pairs of guide wheels are limited between the front cover plate 103 and the rear cover plate 104. The front surface of the front cover plate 103 is flush with the front surface of the die plate main body 101, and the rear surface of the rear cover plate 104 is flush with the rear surface of the die plate main body 101. As shown in fig. 4, 7a and 7b, guide wheel positioning grooves 114 are respectively provided on the rear side of the front cover plate 103 and the front side of the rear cover plate where the front cover plate 103 and the rear cover plate 104 are opposite to each other, the guide wheel positioning grooves 114 have a shape matching the rotation trajectory of the plate-shaped body 109 of the guide wheel 102, in the present embodiment, the guide wheel positioning grooves 114 have a shape corresponding to the disc-shaped plate-shaped body 109, the corresponding guide wheel 102 is retained between the front cover plate 103 and the rear cover plate 104, and cover plate penetrating openings 114a are provided in the positioning grooves 114, so that the axis of the first guide hole 111 on the guide wheel 102 can pass through the openings 114a on both sides. As shown in fig. 4 and 9, the axis of the guide wheel 102 is parallel to the plate surface of the formwork main body 101, so that the guide wheel 102 can be rotatably disposed on the formwork main body 101, and the first guide wheel can rotate around the rotating shaft 110 of the second guide wheel through the rotating shaft limiting hole 113 thereof, centering on the rotating shaft of the first guide wheel; the second guide wheel uses the self rotating shaft as the center, and can rotate around the rotating shaft 110 of the first guide wheel through the rotating shaft limiting hole 113, so that the direction of the axis of the first guide hole 111 of the first guide wheel and the axis of the first guide hole 111 of the second guide wheel penetrating through the through hole 103/the guide wheel positioning groove 114 can be adjusted, and the adjustment of the puncture angle is realized.
As described above, the guide flanges 112 through which the first guide holes 111 extend are further protrudingly provided at both sides in the radial direction of the rotation shaft 110, and the guide flanges 112 are maintained at a predetermined distance from the end 110a of the rotation shaft 110; two side portions of the rotation shaft limiting hole 113 are symmetrically arranged opposite to the two guide flanges 112 on the rotation shaft 110, respectively, that is, an axial symmetry line of the rotation shaft limiting hole 113 is perpendicular to an axis of the first guide hole, as shown in fig. 5 a. In the case of limiting the guide wheel 102 using the front cover plate 103 and the rear cover plate 104, the rear side surface of the front cover plate 103 and the front side surface of the rear cover plate 104 are spaced apart from the rotation shaft 110 of the guide wheel 102 by a predetermined distance, respectively, so that the guide wheel 102 can define a rotation angle by the guide flanges 112 on both sides of the rotation shaft 110 contacting the rear side surface of the front cover plate 103 and the front side surface of the rear cover plate 104, respectively, and particularly contacting the edges of the opening 114 a. Thus, when the arrangement shown in fig. 6 is performed, the problem that the contact limit between the rotating shaft limiting holes 113 of the two guide wheels 102 and the corresponding rotating shaft 110 is limited and the mutual interference influence is caused can be avoided, and due to the arrangement of the guide flanges 112, the length of the first guide hole 111 is increased, so that the longer puncture needle rod part is accommodated in the first guide hole 111, the puncture needle 119 is not easy to generate offset in the first guide hole 111, and the positioning precision of puncture can be improved. Therefore, the guide flange 112 of the present embodiment increases the length of the first guide hole 111 to facilitate fixing the puncture needle, and also defines the rotation angle of the guide wheel to improve the positioning accuracy.
In addition, a plurality of second guide holes 108 which are parallel to each other and penetrate through the front cover plate 103 and the rear cover plate 104 are correspondingly arranged on the front cover plate 103 and the rear cover plate 104, and the second guide holes 108 are parallel to each other. When the guide wheel 102 is rotated such that the first guide hole 111 is parallel to the second guide hole 108 and the second guide hole 108, adjacent guide holes have a predetermined interval therebetween in the guide hole array constituted by the first guide hole 111 and the second guide hole 108.
The guide wheel 102 is provided with a first scale mark 116 at least partially on a side rim visible from the front side of the front cover plate 103 (the front surface of the template body) based on the guide wheel positioning groove 114, and a marking scale mark is provided on the front side surface of the front cover plate 103 of the template body 101 corresponding to the first scale mark 116, so that the inclination angle of the first guide hole 111 is determined by observing the relative position between the first scale mark 116 of the guide wheel 102 and the marking scale mark on the front cover plate, for example: when the first scale line 116 rotates by one scale, it indicates that the rotation angle of the first guide hole 111 is 4 degrees. In this way, when the puncture positioning is performed, the relative position between the first graduation mark 116 and the marking graduation mark on the front cover plate is observed, so that the inclination angle of the puncture needle can be easily grasped.
In order to make the structure of the angle-adjustable puncturing template of the present embodiment more stable, the angle-adjustable puncturing template of the present embodiment further includes a cover plate locking knob 105, and the front cover plate 103 and the rear cover plate 104 are respectively fixed by using two cover plate locking knobs 105, as shown in fig. 4, 8 and 9. A first fixing hole 117 communicated with the side wall of the front cover plate 103 and/or the rear cover plate 104 is formed in the side wall of the template main body 101, and at least part of the hole wall of the first fixing hole 117 is provided with a thread. The cover plate locking knob 105 comprises a handle and a knob rod, the handle is connected to the rear end of the knob rod, at least part of the rod wall of the knob rod is provided with threads, and the optical axis is preferably arranged at the front end of the knob rod. The cover locking knob 105 is screwed into the first fixing hole 117 so that the front end of the knob stem can abut against the side wall surface of the front cover 103 or the rear cover 104, or a blind hole on the side wall of the front cover 103 or the rear cover 104, to fix the front cover 103 or the rear cover 104. The front cover plate 103 and the rear cover plate 104 are fixed by using the cover plate locking knob 105, so that the puncture template with the adjustable angle of the embodiment is convenient to disassemble and assemble and is convenient to clean.
In order to fix the axial direction of the first guiding hole 111 on the guiding wheel 102, the angle-adjustable puncture template of the present embodiment further includes a guiding wheel locking knob 106, and the guiding wheel 102 is limited by the guiding wheel locking knob 106, as shown in fig. 4, 8 and 9. A second fixing hole 118 communicated with the surface of the plate-shaped main body of the corresponding guide wheel 102 is formed in the side wall of the template main body 101, and at least part of the hole wall of the second fixing hole 118 is provided with threads. The guide wheel locking knob 106 comprises a handle and a knob rod, the handle is connected to the rear end of the knob rod, at least part of the rod wall of the knob rod is provided with threads, and the optical axis is preferably arranged at the front end of the knob rod. The guide wheel locking knob 106 is screwed into the second fixing hole 118, and the guide wheel locking knob 106 is screwed after the puncture is completed, so that the front end of the knob rod can be abutted to the surface of the plate-shaped main body of the corresponding guide wheel 102, the guide wheel 102 is limited to rotate through friction force, the locking purpose is achieved, and the corresponding guide wheel 102 is fixed.
When a lesion region is treated by puncturing using the angularly adjustable puncturing template of the present embodiment, one or more puncturing needles are selectively inserted into the first guide hole 111 and/or the second guide hole 108 according to a lesion state. For the puncture needle 119 inserted into the first guide hole 111, the limit of the guide wheel locking knob 106 on the guide wheel 102 is released, the guide wheel 102 is driven to rotate by moving the handle of the puncture needle 119 up and down, as shown in fig. 11, the direction of the axis of the first guide hole 111 passing through the through hole 107 is adjusted, the puncture needle in the first guide hole 111 can obliquely enter a desired lesion position, and then the guide wheel locking knob 106 is screwed to fix the guide wheel 102, so that the puncture is completed.
It should be noted that, although the two pairs of guide wheels 102 are provided in the above embodiment, and the puncture angles of the four puncture needles can be adjusted respectively, it can be understood by those skilled in the art that only one pair of guide wheels 102 may be provided on the template main body 101, and since two first guide holes 111 with adjustable angles are included, the puncture angles of only two adjacent puncture needles can be adjusted.
Of course, it is simpler to arrange a guide wheel 102 on the template body 101, and to arrange the guide wheel on the template body 1 in a single rotatable manner, so as to achieve the purpose of adjusting the puncture angles of different numbers of puncture needles. In this case, the plate-like body 109 does not need to be provided with the rotation shaft stopper hole 113.
In a second embodiment of the present invention, as shown in fig. 12 to 17b, the angularly adjustable puncture template 100 includes a template body 101, a guide wheel 102, and a guide wheel positioning shaft 115.
The structure of the guide wheel 102 of the preferred embodiment of the present invention is shown in fig. 15a to 15 c. The guide wheel 102 has a plate-shaped body 109 and a rotation shaft 110 provided to protrude on a first side of the plate-shaped body 109, and an axis of the first guide hole 111 is perpendicular to an axis of the rotation shaft 110. In the present embodiment, the plate-shaped body 109 is preferably in a circular plate shape, and the rotation shaft 110 is disposed at a central position of the circular plate-shaped body 109. A first guide hole 111 through which a puncture needle passes is formed in the rotation shaft 110 near the plate-like body 109 along the radial direction of the rotation shaft 110, and the first guide hole 111 is a straight hole. A rotating shaft limiting hole 113 and a guide wheel positioning hole 120 are formed in the plate-shaped main body 109 at the side of the rotating shaft 110, and preferably, the rotating shaft limiting hole 113 and the guide wheel positioning hole 120 are formed at two sides of the rotating shaft 110 in an opposite manner.
In this embodiment, the guide wheels 102 are plural, and include two pairs of guide wheels arranged side by side, each pair of guide wheels including a first guide wheel and a second guide wheel, as shown in fig. 14, 16, 17a and 17 b. The first guide wheel and the second guide wheel are disposed in such a manner that the first sides thereof are opposite to each other, the rotating shaft 110 of the first guide wheel is inserted into the rotating shaft limiting hole 113 of the second guide wheel, and the rotating shaft 110 of the second guide wheel is inserted into the rotating shaft limiting hole 113 of the first guide wheel, so that the first guide wheel and the second guide wheel can define a rotation angle with each other, which is the same as the first embodiment. The rotation amplitude of the first guide wheel and the second guide wheel can be limited by changing the size of the rotating shaft limiting hole 113. It should be understood by those skilled in the art that the first guide hole 111 provided on the rotation shaft 110 cannot be inserted into the rotation shaft stopper hole 113 of the opposite guide wheel.
For the convenience of subsequently using the guide wheel positioning shaft 115 to limit the position of the guide wheel 102, the first guide wheel and the second guide wheel are staggered in a manner that the first sides of the first guide wheel and the second guide wheel are opposite, so that the guide wheel positioning hole 120 of the first guide wheel and the guide wheel positioning hole 120 of the second guide wheel are not shielded by the opposite guide wheel in the arrangement direction of the first guide wheel and the second guide wheel. In the scheme of this embodiment, first leading wheel sets up with second leading wheel with its relative mode of first side is crisscross, spacing each other, and the structure is more compact.
The template body 101 is provided with a through hole 107 penetrating through the front surface and the rear surface thereof, the through hole 107 is a guide wheel limiting hole having a shape corresponding to the guide wheel structure, and the guide wheel structure is limited in the through hole 107 so that the axis of the first guide hole 111 of the guide wheel 102 can pass through the through hole 107. As shown in fig. 14 and 16, the axis of the guide wheel 102 is parallel to the plate surface of the die plate main body 101.
In the position limiting method of the present embodiment, as shown in fig. 14 to 17b, a third fixing hole connected to the guide wheel positioning hole 120 of the first guide wheel and a fourth fixing hole connected to the guide wheel positioning hole 120 of the second guide wheel are formed in the side wall of the die plate main body 101. The first guide wheel alignment shaft 115 is inserted into the third fixing hole and passes through the guide wheel alignment hole 120 of the first guide wheel, and the second guide wheel alignment shaft 115 is inserted into the fourth fixing hole and passes through the guide wheel alignment hole 120 of the second guide wheel.
Therefore, the first guide wheel and the second guide wheel are fixed by the structure of the guide wheel positioning shaft 115 and the guide wheel positioning hole 120 in addition to the structure of the rotation shaft 110 and the rotation shaft limiting hole 113, so that the guide wheel 102 can be rotatably arranged on the template main body 101. The first guide wheel takes a self rotating shaft as a center and can rotate around the rotating shaft 110 of the second guide wheel through a rotating shaft limiting hole 113; the second guide wheel uses the self rotating shaft as the center, and can rotate around the rotating shaft 110 of the first guide wheel through the rotating shaft limiting hole 113, so that the direction of the axis of the first guide hole 111 of the first guide wheel and the axis of the first guide hole 111 of the second guide wheel penetrating through the through hole 107 can be adjusted, and the adjustment of the puncture angle is realized. In the embodiment including the guide wheel positioning shaft 115 and the guide wheel positioning shaft 120, it is preferable that the rotation of the first guide wheel and/or the second guide wheel is limited by limiting between the guide wheel positioning shaft 115 and the guide wheel positioning shaft 120.
As in the first embodiment, the template main body 101 is further provided with a plurality of second guide holes, and on the front surface edge of the template main body 101, marks corresponding to the plurality of second guide holes parallel to each other are marked with coordinate values for recording the puncture position. When the guide wheel 102 is rotated such that the first guide hole 111 is parallel to the second guide hole, adjacent guide holes have a predetermined interval therebetween in the guide hole array constituted by the first guide hole 111 and the second guide hole.
The guide wheel 102 is provided with first graduation marks 116 at least partially on a side rim visible from the front side of the template body 101 based on the through hole 107, and marking graduation marks are provided on the front surface of the template body 101 corresponding to the first graduation marks 116, so that the inclination angle of the first guide hole 111 is determined by observing the relative position between the first graduation marks 116 of the guide wheel 102 and the marking graduation marks on the front surface of the template body 101.
When a lesion region is treated by puncturing using the angularly adjustable puncturing template of the present embodiment, one or more puncturing needles are selectively inserted into the first guide hole 111 and the second guide hole 108 according to a lesion state. For the puncture needle inserted into the first guide hole 111, the guide wheel 102 is driven to rotate by moving the handle of the puncture needle up and down, and the direction of the axis of the first guide hole 111 passing through the through hole 107 is adjusted, so that the puncture needle in the first guide hole 111 can obliquely enter the expected lesion position, and the puncture is finished.
It should be noted that, although the guide wheels 102 in the above-described embodiment are provided in two pairs, it is understood by those skilled in the art that only one pair of guide wheels 102 may be provided on the die plate main body 101. More simply, one or more guide wheels 102 can be arranged on the template main body 101 and can be independently and rotatably arranged on the template main body 1, and the aim of adjusting the puncture angles of different numbers of puncture needles can also be achieved. In this case, the plate-like body 109 does not need to be provided with the rotation shaft stopper hole 113.
Compared with the first embodiment, the technical scheme of the second embodiment reduces the number of parts and reduces the product cost.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. The puncture template with the adjustable angle is characterized by comprising a template main body and one or more guide wheels, wherein the guide wheels are rotatably arranged in the template main body; the guide wheel is provided with a plate-shaped main body and a rotating shaft, the rotating shaft is convexly arranged on the first side of the plate-shaped main body, a first guide hole for the puncture needle to pass through is formed in the guide wheel, and the first guide hole is formed in the rotating shaft in the radial direction; the axial direction of the first guide hole changes with the rotation of the guide wheel.
2. The adjustable angle puncture template of claim 1, wherein the axis of the first guide hole is perpendicular to the axis of the rotation shaft; the axis of the guide wheel is parallel to the plate surface of the template main body.
3. The adjustable angle puncture template of claim 2, wherein guide flanges through which the first guide holes extend are further protrusively provided on both radial sides of the rotation shaft.
4. The angle-adjustable puncture template as claimed in claim 3, wherein a shaft-limiting hole is further formed in the plate-shaped main body; the leading wheel is a plurality of, including at least a pair of leading wheel that sets up side by side, a pair of leading wheel includes first leading wheel and second leading wheel, first leading wheel with the second leading wheel sets up with its first side relative mode, the pivot of first leading wheel is inserted in the spacing hole of pivot of second leading wheel, the pivot of second leading wheel is inserted in the spacing hole of pivot of first leading wheel, make first leading wheel with the second leading wheel is injectd turned angle each other.
5. The adjustable angle puncture template of claim 4, wherein the plate-shaped body has a circular plate shape, and the rotation shaft is disposed at a central position of the circular plate-shaped body.
6. The adjustable angle puncture template of claim 4, wherein the guide wheel is provided with a first graduation mark at least partially on a side rim visible from the front side of the template body; and the front surface of the template main body is provided with mark scale marks corresponding to the first scale marks.
7. The adjustable angle piercing template of any one of claims 4-6, wherein the template body is provided with through holes through its front and rear surfaces; the template main part includes front shroud and back shroud, the front shroud with the back shroud inlays to be established in the through-hole of template main part, will one or more leading wheels are spacing front shroud with between the back shroud.
8. The angularly adjustable puncture template of claim 7, wherein guide wheel positioning grooves having a shape matching the rotation locus of the plate-like body of the guide wheel are provided on the opposite rear side of the front cover plate and the front side of the rear cover plate, respectively, the guide wheel positioning grooves having openings therein, the guide wheel defining the rotation angle by the contact of the guide flanges with the edges of the openings.
9. The adjustable angle piercing template of claim 8, wherein the guide flange is maintained a predetermined distance from the end of the shaft.
10. The adjustable angle piercing template of claim 7, wherein: the puncture template with the adjustable angle also comprises a guide wheel locking knob, and at least part of the rod wall of a knob rod of the guide wheel locking knob is provided with threads; a second fixing hole communicated with the surface of the plate-shaped main body of the corresponding guide wheel is formed in the side wall of the template main body, and threads are arranged on at least part of the hole wall of the second fixing hole;
when the guide wheel locking knob is screwed into the second fixing hole, the front end of the knob stem can abut against the plate-like body surface of the corresponding guide wheel.
11. The adjustable angle puncture template of claim 7, wherein the front cover plate and the back cover plate are provided with a plurality of second guiding holes which are parallel to each other and penetrate through the front cover plate and the back cover plate.
12. The adjustable angle puncture template of any one of claims 4-6, wherein the template body is provided with a through hole extending through the front and rear surfaces thereof, the through hole having a shape corresponding to the one or more guide wheels, and the one or more guide wheels are retained in the through hole.
13. The adjustable angle piercing template of claim 12, further comprising a guide wheel positioning shaft; guide wheel positioning holes are also formed in the plate-shaped main bodies of the first guide wheel and the second guide wheel; the first guide wheels and the second guide wheels are arranged in a staggered mode in a mode that the first sides of the first guide wheels and the second guide wheels are opposite, so that guide wheel positioning holes of the first guide wheels and guide wheel positioning holes of the second guide wheels are not shielded by the guide wheels on the opposite sides in the arrangement direction of the first guide wheels and the second guide wheels; a third fixing hole communicated with the guide wheel positioning hole of the first guide wheel and a fourth fixing hole communicated with the guide wheel positioning hole of the second guide wheel are formed in the side wall of the template main body; the first guide wheel positioning shaft is inserted into the third fixing hole and penetrates through the guide wheel positioning hole of the first guide wheel, and the second guide wheel positioning shaft is inserted into the fourth fixing hole and penetrates through the guide wheel positioning hole of the second guide wheel.
14. The adjustable angle puncture template of claim 13, wherein the shaft limiting hole and the guide wheel positioning hole are oppositely disposed on two sides of the shaft.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711998.1A CN111658097B (en) | 2020-07-22 | 2020-07-22 | Puncture template with adjustable angle |
| PCT/CN2021/084413 WO2022016902A1 (en) | 2020-07-22 | 2021-03-31 | Angle-adjustable puncture template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711998.1A CN111658097B (en) | 2020-07-22 | 2020-07-22 | Puncture template with adjustable angle |
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| Publication Number | Publication Date |
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| CN111658097A CN111658097A (en) | 2020-09-15 |
| CN111658097B true CN111658097B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010711998.1A Active CN111658097B (en) | 2020-07-22 | 2020-07-22 | Puncture template with adjustable angle |
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| Country | Link |
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| CN (1) | CN111658097B (en) |
| WO (1) | WO2022016902A1 (en) |
Families Citing this family (2)
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|---|---|---|---|---|
| CN111658097B (en) * | 2020-07-22 | 2021-05-25 | 上海睿刀医疗科技有限公司 | Puncture template with adjustable angle |
| CN112370123A (en) * | 2020-09-29 | 2021-02-19 | 上海睿刀医疗科技有限公司 | Adjustable puncture template |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207545168U (en) * | 2017-03-10 | 2018-06-29 | 河北省沧州中西医结合医院 | A kind of angle adjustable puncture needle fixer |
| CN209826905U (en) * | 2019-03-06 | 2019-12-24 | 中国人民解放军北部战区总医院 | Ultrasonic probe puncture frame convenient to adjust puncture angle |
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| US5030223A (en) * | 1989-06-30 | 1991-07-09 | Iowa State University Research Foundation, Inc. | Head mounted stereotaxic apparatus |
| US5053042A (en) * | 1990-01-16 | 1991-10-01 | Bidwell Clifford D | Biopsy needle guide for use with CT scanner |
| US5196019A (en) * | 1991-10-04 | 1993-03-23 | Dlp, Inc. | Goniometer for needle placement |
| CN209236315U (en) * | 2018-02-11 | 2019-08-13 | 苏州融准医疗科技有限公司 | A kind of targeting guiding puncture system based on Multimodal medical image information |
| US11707259B2 (en) * | 2018-10-19 | 2023-07-25 | Canon U.S.A., Inc. | Wireless needle guidance using encoder sensor and encoder scale to achieve positional sensing between movable components |
| CN210871928U (en) * | 2019-07-16 | 2020-06-30 | 首都医科大学附属北京友谊医院 | Adjustable prostate puncture template |
| CN110664465B (en) * | 2019-08-30 | 2022-02-11 | 重庆医科大学附属永川医院 | Unilateral percutaneous puncture centrum guider |
| CN211674612U (en) * | 2020-02-19 | 2020-10-16 | 上海睿刀医疗科技有限公司 | Puncture guiding device |
| CN111658097B (en) * | 2020-07-22 | 2021-05-25 | 上海睿刀医疗科技有限公司 | Puncture template with adjustable angle |
| CN112370123A (en) * | 2020-09-29 | 2021-02-19 | 上海睿刀医疗科技有限公司 | Adjustable puncture template |
-
2020
- 2020-07-22 CN CN202010711998.1A patent/CN111658097B/en active Active
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2021
- 2021-03-31 WO PCT/CN2021/084413 patent/WO2022016902A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207545168U (en) * | 2017-03-10 | 2018-06-29 | 河北省沧州中西医结合医院 | A kind of angle adjustable puncture needle fixer |
| CN209826905U (en) * | 2019-03-06 | 2019-12-24 | 中国人民解放军北部战区总医院 | Ultrasonic probe puncture frame convenient to adjust puncture angle |
Also Published As
| Publication number | Publication date |
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| CN111658097A (en) | 2020-09-15 |
| WO2022016902A1 (en) | 2022-01-27 |
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