CN112353468A

CN112353468A - Puncture guide

Info

Publication number: CN112353468A
Application number: CN202011356682.1A
Authority: CN
Inventors: 姜新华; 朱瑜; 王沁; 王宝中; 邢甲佳; 顾伟; 苏杨
Original assignee: Suzhou Leapmed Healthcare Corp
Current assignee: Suzhou Leapmed Healthcare Corp
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-02-12

Abstract

The invention provides a puncture guide, comprising: a front half main body, the front half main body has a plurality of front guide holes; a rear half main body, the rear half main body has a plurality of rear guide holes corresponding to the front guide holes; The front half main body and the rear half main body are fixedly connected, wherein when the front half main body and the rear half main body are connected, the front guide hole and the rear guide hole form a puncture guide channel. The puncture guide helps to improve the accuracy and convenience of transperineal prostate puncture biopsy.

Description

Puncture guide

Technical Field

The invention relates to the technical field of medical instruments, in particular to a puncture guide for transperineal puncture biopsy under ultrasonic guidance.

Background

The prostate aspiration biopsy is a minimally invasive procedure for obtaining prostate tissue from the prostate by using a puncture needle, and is the most fundamental examination method for determining prostate cancer, i.e. the so-called "gold standard" in medicine.

The specific operation of the prostate puncture biopsy is as follows: under the guidance of B ultrasonic, a doctor puts a special needle biopsy needle into the prostate through perineum or rectum, and reserves part of prostate tissue for pathological examination. In the transperineal puncture protocol, the number of puncture needles is classified into 6-needle puncture biopsy, 10-needle puncture biopsy, 12-needle puncture biopsy, 13-needle puncture biopsy, and the like. The multi-needle position profile for these four protocols can be seen in fig. 1. In this standard 12 needle biopsy, six points are taken on each of the different planes on either side of the prostate for aspiration.

The prior art often has the problem that the sampling position or direction of multi-needle puncture is not ideal, thereby causing the serious consequence of inaccurate diagnosis.

Disclosure of Invention

In view of the above, the present invention provides a puncture guide for transperineal prostate puncture biopsy, which is used to realize multiple sampling of prostate gland and improve accuracy and convenience of transperineal prostate puncture biopsy operation.

The puncture guide of the embodiment of the present invention includes: a front half body having a plurality of front guide holes; a rear half body having a plurality of rear guide holes corresponding to the plurality of front guide holes; the connecting structure is used for fixedly connecting the front half main body and the rear half main body, wherein when the front half main body is connected with the rear half main body, the front guide holes and the rear guide holes form a plurality of puncture guide channels.

Optionally, the front half body and/or the rear half body is/are in the shape of a cover.

Optionally, the rear half body further comprises a plurality of guide short cylinders correspondingly connected with the plurality of rear guide holes.

Optionally, the connecting structure is a snap.

Optionally, the method further comprises: a pin disposed on a side of the penetration guide.

Optionally, the front guide holes and the rear guide holes are uniformly distributed.

Optionally, the front guide holes and the rear guide holes are distributed in a rectangular array.

Optionally, the row-column spacing of the rectangular array is 2mm to 10mm, and the aperture of the front guide hole and the aperture of the rear guide hole are 0.5mm to 4.0 mm.

Optionally, the front guide hole is a bell mouth.

Optionally, the method further comprises: and marking the number of the guide hole.

According to the technical scheme of the invention, the puncture direction of the puncture needle is limited by forming the puncture guide hole by butting the front guide hole and the rear guide hole, so that the puncture guide of the prostate is realized, and the accuracy and the convenience of the transperineal prostate puncture biopsy operation are improved.

Drawings

The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:

FIG. 1 is a schematic view of a transperineal multiple needle puncture protocol for the prostate;

FIG. 2 is a schematic structural view of a puncture guide according to an embodiment of the present invention in an exploded state;

FIG. 3 is a schematic view of the assembled state of the puncture guide according to the embodiment of the present invention;

fig. 4 is an axial sectional view of a front pilot hole according to an embodiment of the present invention.

Wherein, 1-the anterior half body; 11-front pilot hole; 2-the second half body; 21-rear guide hole; 22-a guide short cylinder; 3-buckling; 4-pins; 5-guide hole numbering mark.

Detailed Description

Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

To achieve the above object, the present invention provides a puncture guide, comprising: a front half body 1, a rear half body 2 and a connecting structure 3. Wherein the front half body 1 has a plurality of front guide holes 11. The rear half body 2 has a plurality of rear guide holes 21 corresponding to the plurality of front guide holes 11. The connecting structure 3 is used for fixedly connecting the front half body 1 and the rear half body 2. When the front half body 1 is connected to the rear half body 2, the plurality of front guide holes 11 and the plurality of rear guide holes 21 form a plurality of puncture guide passages. According to the technical scheme of the invention, the puncture direction of the puncture needle is limited by using the front guide hole and the rear guide hole to determine a line at two points, so that the puncture guide of the prostate is realized, and the accuracy and the convenience of the transperineal prostate puncture biopsy operation are improved.

In the embodiment of the present invention, the front half body 1 and/or the rear half body 2 may be in a cover shape, that is, include four sidewalls and enclose a rectangular parallelepiped, and have a bottom surface perpendicular to the four sidewalls, and the whole body forms a cover shape. The design of lid form compares in the design of solid block, saves the material more to the finished product is lighter.

Since it is sometimes difficult to align the needle after passing through the front guide hole 11 to the opposite rear guide hole 21 during the needle insertion process, in the embodiment of the present invention, the rear half body 2 may further include a plurality of guide short cylinders 22 corresponding to the plurality of rear guide holes 21. When the front half body 1 and the rear half body 2 are coupled, the plurality of guide short cylinders 22 are located between the plurality of front guide holes 11 and the plurality of rear guide holes 21. The puncture guide of this embodiment can guide the puncture needle more accurately.

In an embodiment of the present invention, the connection structure 3 may be a snap. The connecting structure 3 may also be in other forms, such as ultrasonic welding or glue bonding to connect the front half body 1 and the rear half body 2 together, so that the plurality of front guide holes 11 and the plurality of rear guide holes 21 are stably butted.

In the embodiment of the present invention, the method may further include: and the pin 3 is arranged on the side surface of the puncture guide. The pin 3 may be used for fixation, for example, to fix the puncture guide to other medical instruments such as a stepper.

In an embodiment of the present invention, the front pilot holes 11 and the rear pilot holes 21 may be non-uniformly distributed. Specifically, the front guiding holes 11 may be non-uniformly distributed on the front half body 1, for example, 6, 10, 12 or 13 front guiding holes 11 arranged in a specific array may be correspondingly arranged on the front half body 1 with reference to the puncturing scheme shown in fig. 1. Since the rear pilot holes 21 need to be aligned with the front pilot holes 11 at two points, the rear pilot holes 21 are also designed to be non-uniformly distributed on the rear half body 2. The penetration guide of this embodiment is easy to position into the needle, but is somewhat less versatile.

In an embodiment of the present invention, the front pilot holes 11 and the rear pilot holes 21 may be uniformly distributed. The puncture guide with evenly distributed guide holes can provide basic positioning of a plurality of hole positions without limitation, and has the advantage of good universality.

In the embodiment of the present invention, the front guide holes 11 and the rear guide holes 21 are distributed in a rectangular array, such as a 13 × 13 array shown in the figure. The rectangular array is the most common array form, is easy to establish connection with a two-dimensional coordinate system, and has the advantages of simplicity and easiness in operation.

In an embodiment of the invention, the rectangular array has a row-column pitch of 2mm to 10mm, for example an alternative row-column pitch of 5 mm. This means that there are hundreds of needle inserting positions on the puncture guide with smaller size, and any position of the prostate needing puncture can be covered completely without blind area. The aperture of the front guide hole and the rear guide hole is 0.5mm to 4.0mm, for example, the aperture of the front guide hole and the aperture of the rear guide hole can be selected to be 1.3mm and 1.6mm, so as to adapt to puncture needles with different specifications.

In an embodiment of the present invention, the puncture guide further comprises: the pilot hole is numbered 5. As shown in fig. 3, the front half body 1 has arabic numerals and english letters, i.e., a pilot hole number mark 5, printed on the surface thereof. The design can enable medical personnel to more conveniently record the position of the puncture needle.

In the embodiment of the present invention, as shown in fig. 4, the front guide hole 11 is a bell mouth. The design can ensure that the puncture needle inserting process is smoother.

The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A puncture guide is characterized in that, comprises:

a front half main body, the front half main body has a plurality of front guide holes;

a rear half main body, the rear half main body has a plurality of rear guide holes corresponding to the plurality of front guide holes;

a connecting structure for fixedly connecting the front half body and the rear half body,

Wherein, when the front half main body is connected with the rear half main body, the plurality of front guide holes and the plurality of rear guide holes form a plurality of puncture guide channels.

2 . The puncture guide according to claim 1 , wherein the front half main body and/or the rear half main body is in the shape of a cover. 3 .

3. The puncture guide of claim 1, wherein

The rear half body further includes a plurality of guide short cylinders correspondingly connected with the plurality of rear guide holes.

4. The puncture guide according to claim 1, wherein the connecting structure is a buckle.

5 . The puncture guide according to claim 1 , further comprising: pins, wherein the pins are arranged on the side of the puncture guide. 6 .

6 . The puncture guide according to claim 1 , wherein the front guide holes and the rear guide holes are evenly distributed. 7 .

7 . The puncture guide according to claim 6 , wherein the front guide holes and the rear guide holes are distributed in a rectangular array. 8 .

8 . The puncture guide according to claim 7 , wherein the row and column spacing of the rectangular array is 2 mm to 10 mm, and the diameters of the front guide holes and the rear guide holes are 0.5 mm to 4.0 mm. 9 .

9 . The puncture guide according to claim 1 , wherein the front guide hole is a bell mouth. 10 .

10 . The puncture guide according to claim 1 , further comprising: a guide hole number mark. 11 .