CN219250370U

CN219250370U - Puncture adjuster for CT guidance

Info

Publication number: CN219250370U
Application number: CN202320228972.0U
Authority: CN
Inventors: 潘耀华; 万肖蓬; 巩宜栋; 王东; 陈川
Original assignee: Guangzhou Welllead Medical Equipment Co ltd
Current assignee: Guangzhou Welllead Medical Equipment Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-06-27
Anticipated expiration: 2033-02-16

Abstract

The utility model discloses a puncture adjuster for CT guidance, which comprises a negative film, wherein a transverse sliding block is embedded on the negative film, a developing needle is arranged in the negative film, and the developing needle is positioned around the transverse sliding block; the transverse sliding block is detachably connected with a transverse angle indicating block, and one side of the transverse sliding block is provided with a transverse angle marking block; the universal ball rod penetrates through the transverse angle indicating block and then is connected with the transverse sliding block in a nested mode, and the universal ball rod is connected with a fixing knob in a threaded mode and used for fixing the puncture angle of the universal ball rod. The utility model has the advantages of accurate positioning, adjustable and controllable puncture angle, convenient operation and the like, improves the success rate of one puncture, and effectively reduces the probability of puncture complications and the radiation dose of patients in the puncture process.

Description

Puncture adjuster for CT guidance

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a puncture adjuster used under CT guidance.

Background

Currently, when a puncture doctor performs a puncture operation under CT guidance, the general position of a lesion is estimated by combining clinical, imaging, and pathology, and then biopsy sampling, drug injection treatment, and the like are performed on the tissue of the lesion. The puncture doctor usually needs to accurately judge the puncture point, the puncture path and the puncture angle so as to complete the puncture operation, but most puncture doctors usually rely on memory or contrast CT images to determine the puncture angle and the puncture path because of the failure of a CT machine to dynamically observe the puncture track of the puncture needle, the puncture angle and the puncture direction are easy to deviate in a freehand needle insertion mode, the success probability seriously depends on the skill and experience of the doctor, and the puncture is difficult to succeed in one time, the dosage of radiation of a patient is increased by repeated puncture, and the occurrence probability of puncture complications is increased by repeated needle insertion.

Therefore, in order to increase the probability of success of a puncture, reduce the dosage of X-ray radiation and the occurrence of puncture complications for patients, a product design for assisting in puncture positioning under CT guidance is proposed. For example, the utility model patent with the chinese bulletin number of CN203369960U discloses a CT guided puncture guide frame, which adjusts the puncture angle through two semi-ring guide rails, and fixes the puncture angle by adopting a knob manner, but the design does not have the auxiliary confirmation function of the needle insertion point, so that a lot of time is often required to be spent in determining the puncture point, the radiation dose of the patient is increased, and the puncture doctor is easy to be fatigued before the needle insertion; the utility model patent with the Chinese bulletin number of CN201239151Y discloses a CT guided puncture positioning frame, which can accurately grasp the angle of a puncture point through a directional marker post, so that an operator can more accurately position the puncture point during puncture, but the design angle is single in adjustment, the auxiliary effect on some complicated focus targets is very little, and a great amount of time is required to be consumed in confirming the puncture point; the utility model patent with the Chinese bulletin number of CN211511984U discloses a puncture guide under CT guidance, the patent proposes to consider the human body puncture part approximately as an xyz coordinate system, determine the coordinates (x, y and z) of a puncture target by moving the needle head of a targeting needle, rotate the angle of the targeting needle to enable the targeting needle to coincide with a puncture path, thereby accurately indicating the position and the puncture angle of the puncture target.

How to solve the problems is a technical problem to be solved.

Disclosure of Invention

The utility model aims to provide a puncture regulator for CT guidance, which has the advantages of accurate positioning, adjustable and controllable puncture angle, convenient operation and the like, improves the success rate of one puncture, and effectively reduces the probability of puncture complications and the radiation dose of a patient in the puncture process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the puncture regulator for CT guide includes one bottom sheet with transverse sliding block, and one developing structure inside the bottom sheet; the transverse sliding block is detachably connected with a transverse angle indicating block, and one side of the transverse sliding block is provided with a transverse angle marking block; the universal ball rod penetrates through the transverse angle indicating block and then is connected with the transverse sliding block in a nested mode, and the universal ball rod is connected with a fixing knob in a threaded mode and used for fixing the puncture angle of the universal ball rod.

Further, the negative film comprises a negative film base block, a glue paste protective film and a glue paste used for being fixed on a human body, one surface of the glue paste is adhered to the negative film base block in a fit way, the other surface of the glue paste is adhered to the glue paste protective film, and the developing structure is arranged in the negative film base block.

Further, the transverse sliding block comprises a sliding rail and a sliding block, wherein the sliding rail consists of two transverse monorails, and two ends of the sliding rail are embedded into the bottom plate base block; the universal ball arm comprises a sliding block, and is characterized in that a round groove is formed in the middle of the sliding block, the universal ball arm penetrates through the transverse angle indicating block and then is connected with the round groove in a nested mode, buckles are arranged on two sides of the bottom of the sliding block and are used for being matched and connected with the single rail in a buckle mode, arched transverse angle adjusting guide rails are correspondingly arranged at the upper ends of the buckles and are used for guiding transverse angle adjustment, and the transverse angle indicating block is detachably connected to the transverse angle adjusting guide rails.

Further, the universal ball rod comprises a ball head, a rod body and a longitudinal angle indicating piece, wherein the ball head is movably embedded in the circular groove and can rotate, the rod body penetrates through the ball head after penetrating through the transverse angle indicating block, the rod body is of a hollow structure, and the rod body is internally provided with a puncture needle or an artifact needle; the two sides of the rod body are provided with the longitudinal angle indicating sheets, and one end of the rod body, which is far away from the ball head, is provided with external threads which are connected with the internal threads of the fixed knob in a matching way.

Further, longitudinal angle marks are arranged on the two lateral sides of the lateral angle indication block, angle scales are arranged on the longitudinal angle marks, and the longitudinal angle marks are used for displaying the longitudinal angle scales; the longitudinal angle indicating sheet is used for indicating the angle scale above the longitudinal angle mark to display the longitudinal angle; a square groove which can enable the rod body to pass through and is provided with a space for adjusting the transverse angle and the longitudinal angle is arranged in the middle of the transverse angle indication block; and nesting grooves which are used for nesting and matching with the transverse angle adjusting guide rail to adjust angles are formed in the two longitudinal ends of the transverse angle indicating block, wherein a pointer is further arranged above the nesting grooves which are close to one end of the transverse angle indicating block, and the pointer is used for indicating angle scales on the transverse angle indicating block.

Further, the transverse angle mark block is arranged on one side of the sliding block, symmetrical transverse angle marks are arranged on the surface of the transverse angle mark block, and the pointer is used for indicating the angle scale above the transverse angle marks to display the transverse angle.

Furthermore, scale marks are arranged on the peripheral edges of the upper surface of the negative film base block, and the negative film base block is made of a silica gel material.

Further, the developing structure is composed of a plurality of developing needles, wherein the developing needles are arranged and distributed at two ends and two sides of the sliding rail in a longitudinal and transverse symmetrical mode; or the developing structure is a developing grid, the developing grid is partially hollowed out corresponding to the sliding rail, and the grids of the developing grid are respectively arranged around the sliding rail.

Further, an anti-falling buckle is arranged in the fixed knob; and the stroke of the sliding block sliding transversely along the monorail is not less than 3cm, and the sliding block is used for adjusting the position of the axle center of the universal ball arm so as to find the optimal needle insertion point.

Due to the adoption of the structure, the utility model has the following beneficial effects:

the utility model relates to a puncture adjuster for CT guidance, which comprises a negative film, wherein a transverse sliding block is embedded on the negative film, a developing needle is arranged in the negative film, and the developing needle is positioned around the transverse sliding block; the transverse sliding block is detachably connected with a transverse angle indicating block, and one side of the transverse sliding block is provided with a transverse angle marking block; the universal ball rod penetrates through the transverse angle indicating block and then is connected with the transverse sliding block in a nested mode, and the universal ball rod is connected with a fixing knob in a threaded mode and used for fixing the puncture angle of the universal ball rod. When in use, firstly, the human body is scanned by CT to determine the approximate needle insertion position; then, the puncture adjuster is contacted with the skin of a patient and then CT scanning is carried out again, whether the optimal puncture point exists between the developing points of the developing needle of the image picture or not is observed, if the optimal puncture point is positioned outside the developing points, the position of the puncture adjuster is adjusted to carry out CT scanning again so as to ensure that the optimal puncture point is positioned in the developing points; then, the transverse sliding block is adjusted to find the optimal needle insertion point, the universal ball rod is adjusted, the transverse puncture angle and the longitudinal puncture angle are confirmed through the transverse angle indicating block and the transverse angle marking block, and then the fixing knob is screwed to apply pressure to the transverse angle indicating block to fix the needle insertion angle; finally, after confirming the needle insertion angle and the optimal puncture point through CT scanning, puncturing is started according to the depth of the focus of the CT image. The utility model has the advantages of accurate positioning, adjustable and controllable puncture angle, convenient operation and the like, improves the success rate of one puncture, and effectively reduces the probability of puncture complications and the radiation dose of patients in the puncture process.

The utility model will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the utility model.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a longitudinal (vertical rail direction) cross-sectional view of the puncture adjuster of the present utility model;

FIG. 3 is a transverse (rail-wise) cross-sectional view of the puncture adjuster of the present utility model;

FIG. 4 is an exploded view of the structure of the present utility model;

fig. 5 is a schematic view of a developing structure according to the present utility model.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the puncture adjuster for CT guidance provided by the present utility model includes a negative 1, wherein a lateral sliding block 2 is embedded in the negative 1, and a developing structure 7 is installed in the negative 1; the transverse sliding block 2 is detachably connected with a transverse angle indicating block 5, and one side of the transverse sliding block 2 is provided with a transverse angle marking block 6; the universal ball rod 3 passes through the transverse angle indicating block 5 and then is connected with the transverse sliding block 2 in a nested mode, the universal ball rod 3 is connected with a fixing knob 4 in a threaded mode, and the fixing knob 4 is used for fixing the puncture angle of the universal ball rod 3.

Preferably, the negative 1 comprises a negative base block 11, a glue paste protecting film 13 and a glue paste 12 for fixing on a human body, one surface of the glue paste 12 is adhered to the negative base block 11 in a fit manner, the other surface of the glue paste 12 is adhered to the glue paste protecting film 13, and the developing structure 7 is arranged in the negative base block 11.

Preferably, the transverse sliding block 2 comprises a sliding rail 21 and a sliding block 22, wherein the sliding rail 21 is composed of two transverse single rails 211, and two ends of the sliding rail 21 are embedded in the bottom plate base block 11; the utility model discloses a universal ball arm, including slider 22, horizontal angle indication piece 5, slider 22 centre is equipped with circular slot 221, universal ball arm 3 pass behind the horizontal angle indication piece 5 with circular slot 221 nest connection, slider 22 bottom both sides all are equipped with buckle 222, buckle 222 be used for with single track 211 is connected with the form cooperation of buckle, and buckle 222 upper end corresponds and is equipped with arched horizontal angle adjustment guide rail 223, horizontal angle adjustment guide rail 223 is used for guiding horizontal angle adjustment, and horizontal angle indication piece 5 detachable connect in on the horizontal angle adjustment guide rail 223.

Preferably, the universal ball rod 3 includes a ball head 31, a rod body 32 and a longitudinal angle indicator 33, the ball head 31 is movably embedded in the circular groove 221 and can rotate, the rod body 32 penetrates through the ball head 31 after penetrating through the transverse angle indicator 5, the rod body 32 is of a hollow structure, and the rod body 32 is internally used for passing through a puncture needle or an artifact needle; the two sides of the rod body 32 are provided with the longitudinal angle indicating pieces 33, and one end of the rod body 32 far away from the ball head 31 is provided with external threads which are in fit connection with the internal threads of the fixed knob 4.

Preferably, longitudinal angle marks 51 are arranged on two lateral sides of the lateral angle indicating block 5, angle scales are arranged on the longitudinal angle marks 51, and the longitudinal angle marks 51 are used for displaying the longitudinal angle scales; the longitudinal angle indicating sheet 33 is used for indicating the angle scale on the longitudinal angle mark 51 to display the longitudinal angle; a square groove 54 which can enable the rod body 32 to pass through and is provided with a transverse angle adjusting space is arranged in the middle of the transverse angle indicating block 5; and nesting grooves 52 which are used for nesting and matching with the transverse angle adjusting guide rails 223 to adjust angles are formed in the two longitudinal ends of the transverse angle indicating block 5, wherein a pointer 53 is further arranged above the nesting grooves 52 near one end of the transverse angle indicating block 6, and the pointer 53 is used for indicating angle scales on the transverse angle indicating block 6.

Preferably, the lateral angle marking block 6 is arranged on one side of the sliding block 22, the surface of the lateral angle marking block 6 is provided with symmetrical lateral angle marks 61, and the pointer 53 is used for indicating the angle scale above the lateral angle marks 61 to display the lateral angle.

Preferably, scale marks are arranged on the peripheral edge of the upper surface of the negative film base block 11, and the negative film base block 11 is made of a silica gel material.

Preferably, the developing structure 7 is formed by a plurality of developing needles, wherein the developing needles are arranged and distributed at two ends and two sides of the sliding rail 21 in a vertically and horizontally symmetrical manner; or, the developing structure 7 is a developing grid, the developing grid is partially hollowed out corresponding to the sliding rail 21, and the grids of the developing grid are respectively around the sliding rail 21.

Preferably, the single-sided transverse angle adjustment of the rod body 32 is not less than 75 ° and the single-sided longitudinal angle adjustment is not less than 45 °.

Preferably, an anti-falling buckle is arranged in the fixed knob 4; and the sliding travel of the sliding block 22 along the single rail 211 is not less than 3cm, so as to adjust the axial position of the universal ball rod 3 to find the optimal needle insertion point.

When the utility model is particularly used, the approximate needle insertion position is determined by CT scanning of the human body; then tearing off the puncture regulator adhesive protective film 13, adhering the puncture regulator adhesive protective film to the skin of a human body through the adhesive 12, confirming that the adhesive is firm, then performing CT scanning again, observing whether the optimal puncture point exists between the development points of the image picture development needle 7, if the optimal puncture point is located outside the development points, adjusting the position of an instrument, and performing CT scanning again to ensure that the optimal puncture point is located inside the development points; then the adjusting slide block 22 finds out a proper needle inserting point, adjusts the universal ball rod 3, confirms the transverse puncture angle and the longitudinal puncture angle through the longitudinal angle mark 51 and the transverse angle mark 61, and then applies pressure to the transverse angle indicating block 5 to fix the needle inserting angle by screwing the fixing knob 4; finally, after confirming the needle insertion angle and the optimal puncture point through CT scanning, puncturing is started according to the depth of the focus of the CT image. The utility model has the advantages of accurate positioning, adjustable and controllable puncture angle, convenient operation and the like, improves the success rate of one puncture, and effectively reduces the probability of puncture complications and the radiation dose of patients in the puncture process.

The transverse direction is the direction of the instrument slide rail, and the longitudinal direction is the direction of the vertical slide rail.

The preferred embodiments of the present utility model have been described above. It is to be understood that the utility model is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model or modifications to equivalent embodiments without departing from the scope of the technical solution of the present utility model, using the methods and technical contents disclosed above, without affecting the essential content of the present utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A puncture regulator for CT guidance, comprising a bottom plate (1), characterized in that: the negative film (1) is embedded with a transverse sliding block (2), and a developing structure (7) is arranged in the negative film (1); the transverse sliding block (2) is detachably connected with a transverse angle indicating block (5), and one side of the transverse sliding block (2) is provided with a transverse angle marking block (6); the universal ball rod (3) passes through the transverse angle indicating block (5) and then is connected with the transverse sliding block (2) in a nested mode, the universal ball rod (3) is connected with the fixing knob (4) in a threaded mode, and the fixing knob (4) is used for fixing the puncture angle of the universal ball rod (3).

2. A puncture adjuster for CT guidance as set forth in claim 1, wherein: the negative film (1) comprises a negative film base block (11), a glue paste protective film (13) and a glue paste (12) used for being fixed on a human body, one surface of the glue paste (12) is adhered to the negative film base block (11) in a fit manner, the other surface of the glue paste (12) is adhered to the glue paste protective film (13), and the developing structure (7) is arranged in the negative film base block (11).

3. A puncture adjuster for CT guidance as set forth in claim 2, wherein: the transverse sliding block (2) comprises a sliding rail (21) and a sliding block (22), the sliding rail (21) is composed of two transverse single rails (211), and two ends of the sliding rail (21) are embedded into the negative film base block (11); the utility model discloses a universal ball arm, including slider (22), horizontal angle indicating block (5), universal ball arm (3), buckle (222) are equipped with in the middle of slider (22), universal ball arm (3) pass behind horizontal angle indicating block (5) with circular slot (221) nest connection, slider (22) bottom both sides all are equipped with buckle (222), buckle (222) be used for with monorail (211) are connected with the form cooperation of buckle, and buckle (222) upper end corresponds and is equipped with arched horizontal angle adjusting guide rail (223), and horizontal angle indicating block (5) detachable connect in on horizontal angle adjusting guide rail (223).

4. A puncture adjuster for CT guidance as set forth in claim 3, wherein: the universal ball rod (3) comprises a ball head (31), a rod body (32) and a longitudinal angle indicating piece (33), wherein the ball head (31) is movably embedded in the round groove (221) and can rotate, the rod body (32) penetrates through the ball head (31) after penetrating through the transverse angle indicating block (5), the rod body (32) is internally of a hollow structure, and the rod body (32) is internally provided with a puncture needle or an artifact needle; the two sides of the rod body (32) are provided with the longitudinal angle indicating sheets (33), and one end of the rod body (32) far away from the ball head (31) is provided with external threads which are matched and connected with the internal threads of the fixed knob (4).

5. A puncture adjuster for CT guidance as set forth in claim 4, wherein: longitudinal angle marks (51) are arranged on the two lateral sides of the lateral angle indicating block (5), angle scales are arranged on the longitudinal angle marks (51), and the longitudinal angle marks (51) are used for displaying the longitudinal angle scales; the longitudinal angle indicating sheet (33) is used for indicating an angle scale on the longitudinal angle mark (51) to display a longitudinal angle; a square groove (54) which can enable the rod body (32) to pass through and is provided with a transverse angle space and a longitudinal angle space to be adjusted is arranged in the middle of the transverse angle indicating block (5); and nesting grooves (52) which are used for nesting and matching with the transverse angle adjusting guide rails (223) to adjust angles are formed in the two longitudinal ends of the transverse angle indicating block (5), a pointer (53) is further arranged above the nesting grooves (52) which are close to one end of the transverse angle identifying block (6), and the pointer (53) is used for indicating angle scales on the transverse angle identifying block (6).

6. A puncture adjuster for CT guidance as set forth in claim 5, wherein: the transverse angle marking block (6) is arranged on one side of the sliding block (22), symmetrical transverse angle marks (61) are arranged on the surface of the transverse angle marking block (6), and the pointer (53) is used for indicating angle scales on the transverse angle marks (61) to display transverse angles.

7. A puncture adjuster for CT guidance as set forth in claim 3, wherein: scale marks are arranged on the peripheral edges of the upper surface of the negative film base block (11), and the negative film base block (11) is made of silica gel materials.

8. A puncture adjuster for CT guidance as set forth in claim 7, wherein: the developing structure (7) is composed of a plurality of developing needles, wherein the developing needles are arranged at two ends and two sides of the sliding rail (21) in a vertically and horizontally symmetrical way; or the developing structure (7) is a developing grid, the part of the developing grid corresponding to the sliding rail (21) is hollowed out, and the grids of the developing grid are respectively arranged around the sliding rail (21).

9. A puncture adjuster for CT guidance as set forth in claim 4, wherein:

an anti-falling buckle is arranged in the fixed knob (4); and the sliding stroke of the sliding block (22) along the single rail (211) is not less than 3cm, and the sliding block is used for adjusting the position of the axle center of the universal ball rod (3) to find the optimal needle inserting point.