CN112370123A - Adjustable puncture template - Google Patents
Adjustable puncture template Download PDFInfo
- Publication number
- CN112370123A CN112370123A CN202011053229.3A CN202011053229A CN112370123A CN 112370123 A CN112370123 A CN 112370123A CN 202011053229 A CN202011053229 A CN 202011053229A CN 112370123 A CN112370123 A CN 112370123A
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- template
- rotating
- hole
- guide
- guide wheel
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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
- A61B17/3468—Trocars; Puncturing needles for implanting or removing devices, e.g. prostheses, implants, seeds, wires
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00547—Prostate
Abstract
The embodiment of the invention relates to an adjustable puncture template, which comprises a rotary template component and a template frame body, wherein the template frame body is provided with a through hole penetrating through the front surface and the rear surface of the template frame body; the rotating template assembly is arranged in the through hole and can rotate based on the central shaft of the rotating template assembly, and a guide hole for a puncture needle to pass through is formed in the rotating template assembly; the axial direction of the rotating template component is parallel to the axial direction of the through hole. The adjustable puncture template can flexibly adjust the puncture position, is suitable for the puncture requirements of different angles, enlarges the puncture range, and improves the efficiency and the puncture precision of the minimally invasive therapies such as puncture ablation, particle implantation and the like. The puncture template provided by the embodiment of the invention is particularly suitable for prostate biopsy or puncture therapy and tissue biopsy of other parts.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an 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.
In addition, because fixed interval keeps between the guiding hole of traditional manual puncture template, when the cloth needle position has special demand, can take place the condition that the cloth needle position does not have the guiding hole for manual puncture template with fixed interval guiding hole can not satisfy actual demand, influences the puncture precision.
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 an adjustable puncture template which comprises a rotary template component and a template frame body,
the template frame body is provided with a through hole penetrating through the front surface and the rear surface of the template frame body;
the rotating template assembly is arranged in the through hole and can rotate based on the central shaft, and a guide hole for a puncture needle to pass through is formed in the rotating template assembly;
the axial direction of the rotating template component is parallel to the axial direction of the through hole.
Further, the adjustable puncture template further comprises a rotating handle;
the rotating handle is detachably connected with the rotating template assembly, and the rotating handle drives the rotating template assembly to rotate when rotating.
Furthermore, a groove communicated with the through hole is formed in a partial area of the side wall of the template frame body along the circumferential direction, one end of the rotating handle penetrates through the groove to be connected with the rotating template assembly, and the other end of the rotating handle extends out of a partial side wall of the template frame body.
Further, the groove is formed in a first area of the side wall of the template frame in the circumferential direction.
Further, the rotating handle is provided on a front surface edge of the rotating template assembly.
Further, the through-hole is cylindric, rotatory template component is discoid, the through-hole with rotatory template component coaxial setting.
Furthermore, the puncture template also comprises a locking knob, and at least part of the rod wall of a knob rod of the locking knob is provided with threads;
a fixing hole communicated with the side wall of the through hole is formed in the side wall of the template frame body, and threads are arranged on at least part of the hole wall of the fixing hole;
the front end of the knob stem can abut against the side of the rotating die plate assembly when the locking knob is screwed into the fixing hole.
Furthermore, a groove is formed in the side wall of the through hole, an elastic bulge is arranged in the groove, and the elastic bulge can be abutted against the side wall of the rotating template assembly.
Furthermore, the elastic bulge is a herringbone spring piece, and two ends of the herringbone spring piece are fixed in the grooves;
the side wall of the rotary template component is provided with a plurality of positioning grooves corresponding to the elastic bulges, and the middle bulge part of the herringbone spring piece is propped against the positioning grooves.
Furthermore, positioning marked lines corresponding to the positioning grooves are at least partially arranged on the periphery of the front surface of the rotating template assembly and/or the front surface of the template frame body close to the periphery of the through hole.
Further, the rotating stencil assembly includes a rotating stencil assembly body and one or more guide wheels,
the guide wheel is rotatably arranged in the rotating template assembly main body, and the axis of the guide wheel is parallel to the plate surface of the rotating template assembly main body;
the guide wheel is provided with a plate-shaped main body and a rotating shaft, a first guide hole for the puncture needle to pass through is formed in the guide wheel, the axis of the first guide hole is perpendicular to the axis of the rotating shaft, and the axis direction of the first guide hole changes along with the rotation of the guide wheel.
Further, the rotating shaft is convexly arranged on the first side of the plate-shaped main body, and the first guide hole is formed in the rotating shaft in the radial direction;
guide flanges for the first guide holes to extend through are convexly arranged on two radial sides of the rotating shaft;
a rotating shaft limiting hole is also 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.
Further, the plate-shaped main body is in a circular plate shape, and the rotating shaft is arranged at the central position of the circular plate-shaped main body; alternatively, the first and second electrodes may be,
the guide wheel is arranged on a side wall wheel rim visible from the front side of the rotating formwork assembly main body, and at least part of the guide wheel is provided with first scale marks; and the front surface of the rotating template assembly main body is provided with mark scale marks corresponding to the first scale marks.
Further, the rotating template component main body comprises a front cover plate and a rear cover plate, the front cover plate and the rear cover plate are embedded in the through hole of the template frame body, and the one or more guide wheels are limited between the front cover plate and the rear cover plate.
Further, the guide flange is kept at a predetermined distance from the end of the rotating shaft;
guide wheel positioning grooves having a shape matching the rotation locus of the plate-like 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 opposed to each other,
an opening is formed in the guide wheel positioning groove, and the guide wheel limits a rotation angle through contact of the guide flange and the edge of the opening.
Further, still be equipped with a plurality of being parallel to each other on the rotatory template subassembly main part and run through the second guiding hole of rotatory template subassembly main part face, and/or, still be equipped with a plurality of third guiding holes that are parallel to each other on the template framework.
The invention has the beneficial effects that: the adjustable puncture template provided by the embodiment of the invention can flexibly adjust the puncture position, is suitable for the puncture requirements of different angles, expands the puncture range and improves the efficiency and puncture precision of minimally invasive therapies such as puncture ablation, particle implantation and the like. The puncture template provided by the embodiment of the invention can 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 perspective view of an adjustable puncture template according to a first embodiment of the invention;
FIG. 3 is a front view of an adjustable piercing template according to a first embodiment of the present invention;
FIG. 4 is a rear view of an adjustable piercing template according to a first embodiment of the present invention;
FIG. 5 is an exploded view of an adjustable puncture template according to a first embodiment of the present invention;
FIG. 6a is a perspective view of one side of a guide wheel of an adjustable puncture template according to a first embodiment of the present invention;
FIG. 6b is a perspective view of the other side of the guide wheel of the adjustable puncture template according to the first embodiment of the present invention;
FIG. 6c is a cross-sectional view of the guide wheel of the adjustable puncture template according to the first embodiment of the present invention;
FIG. 7 is an assembled view of two guide wheels of the adjustable puncture template according to the first embodiment of the present invention;
FIG. 8 is a perspective view of an adjustable puncture template according to a second embodiment of the invention;
FIG. 9 is a front view of an adjustable piercing template according to a second embodiment of the present invention;
FIG. 10 is a rear view of an adjustable piercing template according to a second embodiment of the present invention;
fig. 11 is an exploded view of an adjustable puncture template according to a 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.
A first embodiment of the present invention is directed to an adjustable puncture template, as shown in fig. 2-7, comprising a rotating template assembly 100 and a template frame 200. The template frame 200 is provided with a through hole 201 penetrating through the front surface and the rear surface thereof, the rotating template assembly 100 is disposed in the through hole 201, the rotating template assembly 100 can rotate based on a central shaft, the axial direction of the rotating template assembly 100 is parallel to the axial direction of the through hole 201, wherein the axial direction of the rotating template assembly 100 is the direction of the central shaft of the rotating template assembly 100. Guide holes for the puncture needles to pass through are provided on the rotating template assembly 100 and preferably on the template frame 200.
Specifically, in this embodiment, the through hole 201 is cylindrical, the rotating template assembly 100 is disc-shaped, and the through hole 201 and the rotating template assembly 100 are coaxially disposed, so that the through hole 201 and the rotating template assembly 100 have matched circular shapes, and the rotating template assembly 100 can freely rotate in the through hole 201 without an external structure. Preferably, the rotating die plate assembly 100 and the die plate frame 200 are fixed by the locking knob 105. Of course, the through hole 201 and the rotating template assembly 100 may have other shapes, and the shapes are not necessarily the same, as long as the rotating template assembly 100 can be supported on the through hole 201 to rotate. Further, it is preferable that the front surface of the template frame 200 is flush with the front surface of the rotating template assembly 100.
The rotating die plate assembly 100 includes a rotating die plate assembly body 101 and one or more guide wheels 102, the rotating die plate assembly body 101 preferably having a front cover plate 103 and a rear cover plate 104, the guide wheels 102 rotatably disposed in the rotating die plate assembly body 101. The guide wheel 102 is provided with a first guide hole 111 for passing the puncture needle, and the axial direction of the first guide hole 111 changes with the rotation of the guide wheel 102.
The structure of the guide wheel 102 of the preferred embodiment of the present invention is shown in fig. 6a to 6 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 stopper hole 113 is formed in the plate-like body 109 at the side of the shaft 110. In this embodiment, two side portions of the rotation shaft limiting hole 113 are symmetrically disposed opposite to the two guide flanges 112 on the rotation shaft 110, respectively, as shown in fig. 6 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. 7. 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. The first guide wheels and the second guide wheels are arranged in a staggered mode with the first sides of the first guide wheels and the second guide wheels opposite to each other, namely, one of the first guide wheels and the second guide wheels is not completely shielded by the other guide wheel in the arrangement direction of the first guide wheels and the second guide wheels. 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 plurality of guide wheels 102 are retained in the through hole 201 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 201 of the template frame body 200, and the two pairs of guide wheels 102 are limited between the front cover plate 103 and the rear cover plate 104. The front side surface of the front cover plate 103 is flush with the front surface of the rotating formwork assembly main body 101, and the rear side surface of the rear cover plate 104 is flush with the rear surface of the rotating formwork assembly main body 101. As shown in fig. 5, guide wheel positioning grooves 114 are 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 opposed, respectively, the guide wheel positioning grooves 114 having a shape matching the rotation locus of the plate-shaped body 109 of the guide wheel 102. Although only guide wheel positioning slots 114 on the front side of the rear cover plate are shown in FIG. 5, those skilled in the art will appreciate that the same guide wheel positioning slots 114 are also present on the rear side of the front cover plate 103. In this embodiment, the guide wheel positioning groove 114 has a shape corresponding to the disc-shaped plate-shaped body 109, and the corresponding guide wheel 102 is retained between the front cover plate 103 and the rear cover plate 104, and an opening 114a penetrating through the cover plate is provided in the guide wheel positioning groove 114, so that the axis of the first guide hole 111 of the guide wheel 102 can pass through the openings 114a on both sides. Because the rotating die plate assembly 100 adopts the rotating die plate assembly main body 101 with the front cover plate 103 and the rear cover plate 104, the front cover plate 103 and the rear cover plate 104 can conveniently position the guide wheels from the front side and the rear side, and the disassembly and the assembly and the maintenance are convenient. As shown in fig. 2 to 5, the axis of the guide wheel 102 is parallel to the plate surface of the rotating formwork assembly main body 101, so that the guide wheel 102 can be rotatably disposed on the rotating formwork assembly main body 101, and the first guide wheel can rotate along the rotating shaft 110 of the second guide wheel by taking its own rotating shaft as the center through its rotating shaft limiting hole 113; the second guide wheel uses the self rotating shaft as the center, and can rotate along 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 201/the opening 114a can be adjusted, and the adjustment of the puncture angle is realized.
As described above, as shown in fig. 6a, 6b, 6c and 7, 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. 6 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. In this way, when the arrangement shown in fig. 7 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 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, the rotating die plate assembly main body 101 is further provided with a plurality of second guide holes 108 which are parallel to each other and penetrate through the plate surface of the rotating die plate assembly main body 101, that is, the front cover plate 103 and the rear cover plate 104 are further correspondingly provided with 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, the plurality of second guide holes 108 are parallel to each other, and the second guide holes 108 are also used for allowing puncture needles to pass through.
On the side rim of the guide wheel 102 protruding from the front side of the front cover 103 (the front surface of the rotary die plate assembly body 101) to be visible, the first graduation mark 116 is at least partially provided, and on the front side surface of the front cover 103 of the rotary die plate assembly body 101, a marking graduation mark corresponding to the first graduation mark 116 is provided, so that the inclination angle of the first guide hole 111 is determined by observing the relative position between the first graduation mark 116 of the guide wheel 102 and the marking graduation mark on the front cover 103. As shown in fig. 2 and 3, when the first graduation mark 116 rotates one graduation, a preset angle (for example, 4 degrees) of rotation of the first guide hole 111 is marked. 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 103 is observed, so that the inclination angle of the puncture needle can be easily grasped.
Preferably, a groove 106 is formed on a side wall of the through hole 201, an elastic protrusion 107 is disposed in the groove 106, and the elastic protrusion 107 can abut against the side wall of the rotating die plate assembly 100.
In the present embodiment, the groove 106 is opened at the lower side of the through hole 201, the groove 16 is opposite to a part of the side wall of the rotating formwork assembly 100, as shown in fig. 2, 3 and 5, and the groove 16 is opposite to the side wall of the front cover plate 103 of the rotating formwork assembly 100. The elastic bulge 107 is a herringbone spring piece, and two ends of the herringbone spring piece are fixed in the bottom of the groove 16. A plurality of positioning grooves 115 are formed on the side wall of the rotating die plate assembly 100 corresponding to the elastic protrusions 107, and the middle protruding portion of the chevron spring plate abuts against the positioning grooves 115. When the rotary die plate assembly main body 101 is rotated, as the rotary die plate assembly main body 101 rotates in the through hole 201, the middle convex parts of the herringbone spring pieces can sequentially abut against the positioning grooves 115 and stay at preset positions, so that the position adjustment and positioning of the first guide hole 111 and the second guide hole 108 are realized by rotating the rotary die plate assembly main body 101.
Since the interval between the adjacent two positioning grooves 115 may be the same or different, the rotation angle of the rotary die plate assembly body 101 can be controlled by presetting the interval between the adjacent two positioning grooves 115, that is, when the middle convex portion of the chevron spring plate is scratched from one positioning groove 115 into the other positioning groove 115, the rotary die plate assembly 100 is rotated by a predetermined angle. Furthermore, a positioning mark line 117 corresponding to the positioning groove 115 can be at least partially disposed on the periphery of the front surface of the rotating template assembly 100 and/or on the front surface of the template frame 200 near the periphery of the through hole 201, corresponding to the rotation angle of the rotating template assembly 100 along the positioning groove 115, so that the user can clearly view and control the rotation position of the rotating template assembly 100.
The adjustable puncture template of the present embodiment further comprises a locking knob 105 to secure the rotating template assembly 100. The 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 of the locking knob 105 is provided with threads, and the optical axis is preferably arranged at the front end of the knob rod. A fixing hole 118 communicated with the side wall of the through hole 201 is formed in the side wall of the template frame body 200, and at least part of the hole wall of the fixing hole 118 is provided with a thread. The front end of the knob stem can abut against the side of the rotating die plate assembly 100 when the locking knob 105 is screwed into the fixing hole 118. In this embodiment, before puncturing, the position of the puncturing template needs to be adjusted, the rotating template assembly 100 is rotated to adjust the first guide hole 111 and the second guide hole 203 on the rotating template assembly 100 to proper positions, then the locking knob 105 is screwed, the front end of the knob rod of the locking knob 105 abuts against the side surface of the rotating template assembly 100 to fix the rotating template assembly 100, so that the problem of inaccurate puncturing positioning caused by slight rotation of the rotating template assembly 100 during subsequent puncturing can be avoided, and the stability and accuracy of puncturing can be ensured.
In this embodiment, an annular or semi-annular shoulder 119 is disposed along the sidewall of the through hole 201 of the template frame 200, the shoulder 119 surrounds the side of the rotating template assembly 100 having the front cover plate 103 and the rear cover plate 104, and the front cover plate 103 and the rear cover plate 104 are preferably fixed by screws. Thus, when the locking knob 105 is screwed into the fixing hole 118, the front end of the knob stem presses the stopper 119, and the rotary die plate assembly 100 is fixed by abutting the stopper 119 to the side of the rotary die plate assembly 100.
The puncture template further comprises a rotary handle 300, the rotary handle 300 is detachably connected with the rotary template assembly 100, and the rotary handle 300 drives the rotary template assembly 100 to rotate when rotating. In this embodiment, a groove 202 communicating with the through hole 201 is formed in a first region of the sidewall of the template frame 200 along the circumferential direction, one end of the rotary handle 300 passes through the groove 202 to be connected to the rotary template assembly 100, and the other end of the rotary handle 300 extends out of a part of the sidewall of the template frame 200. As shown in fig. 2, the groove 202 is opened in the first quadrant region, i.e., 0-90 degree region, of the sidewall of the template frame 200. Thus, when the rotating stencil assembly 100 is rotated by the rotating handle 300, the rotating handle 300 moves within the channel 14, which facilitates adjustment without interfering with puncturing. Those skilled in the art will appreciate that the groove 202 may be opened on other suitable areas of the sidewall circumference of the template frame 200, such as: 0-60 degree region, 45-135 degree region.
In addition, the template frame body 200 is further provided with a plurality of third guide holes 203 parallel to each other, the third guide holes 203 penetrate through the front surface and the rear surface of the template frame body 200, and two adjacent third guide holes have a preset distance, for example, the preset distance is 0.5 mm. The puncture needle can also be positioned through the third guide hole 203 to reach a desired target position under the guidance of the ultrasound or other medical imaging equipment. In this embodiment, when performing puncturing positioning, when the third guide hole 203 on the template frame 200 and the second guide hole 108 on the rotating template assembly 100 are used in cooperation, since the rotating template assembly 100 and the template frame 200 can rotate relatively, the pin point positions in the area of the rotating template assembly 100 are relatively increased, and meanwhile, multiple distance combinations of the second guide hole 108 and the third guide hole 203 are increased, so that puncturing requirements of different positions are met. For example, when two puncture needles are selected for puncturing, one of the puncture needles needs to be punctured through the second guide hole 108, the second puncture needle needs to be punctured through the third guide hole 203, and the second guide hole 108 is formed in the rotary template assembly 100, so that when the rotary template assembly 100 is rotated to adjust the puncturing position, the distance between the two puncture needles can be changed, and the puncture needle can meet the wider puncturing requirement. Further, when the guide wheel 102 is rotated such that the first guide hole 111 is parallel to 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, the second guide hole 108, and the third guide hole 203 at least at one rotational position of the rotary die plate assembly 100. Preferably, on the front surface edge of the template frame 200, coordinate values of 1, 2, 3 … … and A, B, C … … are marked corresponding to the plurality of third guide holes 203 parallel to each other for recording the puncturing position.
When a lesion region is treated by puncturing using the adjustable puncturing template of the present embodiment, one or more puncturing needles may be selectively inserted into the first guide hole 111, the second guide hole 108, and/or the third guide hole 203 according to a lesion status. Before puncturing, the direction of the axis of the first guide hole 111 passing through the through hole 201 is first adjusted by rotating the guide wheel 102, then the rotary template assembly 100 is rotated to a predetermined position by operating the rotary handle 300, the locking knob is tightened for locking, and then the puncture needle is inserted into the guide hole for puncturing.
Therefore, the adjustable puncture template of the first embodiment of the invention can flexibly adjust the puncture position, adapt to the puncture requirements of different angles, expand the puncture range and improve the efficiency and puncture precision of minimally invasive therapies such as puncture ablation, particle implantation and the like. The puncture template provided by the embodiment of the invention is particularly suitable for prostate biopsy or puncture therapy and tissue biopsy of other parts.
In a second embodiment of the present invention, as shown in fig. 8 to 11, in contrast to the adjustable puncture template of the first embodiment, the rotary handle 300 of the adjustable puncture template of the present embodiment is disposed on the front surface edge of the rotary template assembly 100, and the rotary handle 300 is preferably rod-shaped, and has one end connected to the front surface edge of the rotary template assembly 100. The adjustable puncture template of the embodiment has a simpler structure and is convenient to disassemble and maintain because the side wall of the template frame body 200 does not need to be provided with the groove 202 along the circumferential direction.
Other structures of the adjustable puncture template of the second embodiment of the invention are the same as those of the first embodiment, and are not described herein again.
It should be noted that, although the guide wheels 102 illustrated in the first and second embodiments are provided in two pairs, those skilled in the art will understand that only one pair of guide wheels 102 may be provided on the template main body 101. More simply, one or more guide wheels 102 can be independently arranged on the template main body 101 and respectively 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 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 (16)
1. An adjustable puncture template is characterized by comprising a rotary template component and a template frame body,
the template frame body is provided with a through hole penetrating through the front surface and the rear surface of the template frame body;
the rotating template assembly is arranged in the through hole and can rotate based on the central shaft of the rotating template assembly, and a guide hole for a puncture needle to pass through is formed in the rotating template assembly;
the axial direction of the rotating template component is parallel to the axial direction of the through hole.
2. The adjustable puncture template of claim 1, further comprising a rotating handle;
the rotating handle is detachably connected with the rotating template assembly, and the rotating handle drives the rotating template assembly to rotate when rotating.
3. The adjustable puncture template of claim 2, wherein a portion of the sidewall of the template frame along the circumferential direction is formed with a groove communicating with the through hole, one end of the rotation handle passes through the groove to connect with the rotation template assembly, and the other end of the rotation handle extends out of a portion of the sidewall of the template frame.
4. The adjustable puncture template of claim 3, wherein the groove opens onto a first region of the template frame sidewall perimeter.
5. The adjustable puncture template of claim 2, wherein the rotation handle is disposed on a front surface edge of the rotation template assembly.
6. The adjustable puncture template of any one of claims 1-5, wherein the through-hole is cylindrical and the rotating template assembly is disc-shaped, the through-hole being coaxially disposed with the rotating template assembly.
7. The adjustable puncture template of claim 6,
the puncture template also comprises a locking knob, and at least part of the rod wall of a knob rod of the locking knob is provided with threads;
a fixing hole communicated with the side wall of the through hole is formed in the side wall of the template frame body, and threads are arranged on at least part of the hole wall of the fixing hole;
the front end of the knob stem can abut against the side of the rotating die plate assembly when the locking knob is screwed into the fixing hole.
8. The adjustable puncture template of claim 6, wherein a groove is formed in a side wall of the through hole, and an elastic protrusion is disposed in the groove, the elastic protrusion being capable of abutting against a side wall of the rotating template assembly.
9. The adjustable piercing template of claim 8, wherein the resilient protrusions are chevron shaped spring blades, both ends of the chevron shaped spring blades being secured in the recesses;
the side wall of the rotary template component is provided with a plurality of positioning grooves corresponding to the elastic bulges, and the middle bulge part of the herringbone spring piece is propped against the positioning grooves.
10. The adjustable puncture template of claim 9, wherein positioning markings corresponding to the positioning grooves are provided at least partially on the periphery of the front surface of the rotating template assembly and/or on the front surface of the template frame near the periphery of the through-hole.
11. The adjustable puncture template of claim 1, wherein the rotating template assembly comprises a rotating template assembly body and one or more guide wheels,
the guide wheel is rotatably arranged in the rotating template assembly main body, and the axis of the guide wheel is parallel to the plate surface of the rotating template assembly main body;
the guide wheel is provided with a plate-shaped main body and a rotating shaft, a first guide hole for the puncture needle to pass through is formed in the guide wheel, the axis of the first guide hole is perpendicular to the axis of the rotating shaft, and the axis direction of the first guide hole changes along with the rotation of the guide wheel.
12. The adjustable puncture template of claim 11, wherein the shaft is convexly disposed on a first side of the plate-like body, the first guide hole being radially opened on the shaft;
guide flanges for the first guide holes to extend through are convexly arranged on two radial sides of the rotating shaft;
a rotating shaft limiting hole is also 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.
13. The adjustable puncture template of claim 12, wherein the plate-shaped body has a circular plate shape, and the rotation shaft is provided at a central position of the circular plate-shaped body; alternatively, the first and second electrodes may be,
the guide wheel is arranged on a side wall wheel rim visible from the front side of the rotating formwork assembly main body, and at least part of the guide wheel is provided with first scale marks; and the front surface of the rotating template assembly main body is provided with mark scale marks corresponding to the first scale marks.
14. The adjustable puncture template of claim 12, wherein the rotating template assembly body comprises a front cover plate and a back cover plate, the front cover plate and the back cover plate being embedded in the through-hole of the template frame body to retain the one or more guide wheels between the front cover plate and the back cover plate.
15. The adjustable puncture template of claim 14,
the guide flange is kept at a preset distance from the end part of the rotating shaft;
guide wheel positioning grooves having a shape matching the rotation locus of the plate-like 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 opposed to each other,
an opening is formed in the guide wheel positioning groove, and the guide wheel limits a rotation angle through contact of the guide flange and the edge of the opening.
16. The adjustable puncture template of claim 11, wherein the rotating template assembly body further comprises a plurality of second guide holes parallel to each other and penetrating the plate surface of the rotating template assembly body, and/or the template frame further comprises a plurality of third guide holes parallel to each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011053229.3A CN112370123A (en) | 2020-09-29 | 2020-09-29 | Adjustable puncture template |
| CN202122316174.7U CN215874883U (en) | 2020-09-29 | 2021-09-24 | Adjustable puncture template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011053229.3A CN112370123A (en) | 2020-09-29 | 2020-09-29 | Adjustable puncture template |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112370123A true CN112370123A (en) | 2021-02-19 |
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ID=74580890
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011053229.3A Pending CN112370123A (en) | 2020-09-29 | 2020-09-29 | Adjustable puncture template |
| CN202122316174.7U Active CN215874883U (en) | 2020-09-29 | 2021-09-24 | Adjustable puncture template |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122316174.7U Active CN215874883U (en) | 2020-09-29 | 2021-09-24 | Adjustable puncture template |
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| Country | Link |
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| CN (2) | CN112370123A (en) |
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| CN113244518A (en) * | 2021-07-06 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template based on multi-point positioning |
| CN113925603A (en) * | 2021-12-16 | 2022-01-14 | 北京微刀医疗科技有限公司 | Telescopic electroporation ablation needle cloth needle device and electroporation ablation device |
| WO2022016902A1 (en) * | 2020-07-22 | 2022-01-27 | 上海睿刀医疗科技有限公司 | Angle-adjustable puncture template |
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|---|---|
| CN215874883U (en) | 2022-02-22 |
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Application publication date: 20210219 |