阅读说明：本技术 一种ct引导下的穿刺辅助定位装置 (Puncture auxiliary positioning device under CT guide ) 是由 施国富 张光辉 王维杰 黄伟阳 丁锡富 朱挺 马璇 于 2020-06-18 设计创作，主要内容包括：本发明涉及一种CT引导下的穿刺辅助定位装置,其特征在于：包括固定带、位于固定带上方的面板、设于面板上的量角器以及进针导管,所述面板上设置有两个相互垂直的水平仪,所述固定带与面板之间通过多个长度可调的调节杆相连,所述进针导管与量角器配合相连以使进针导管一端可沿量角器的外侧圆周绕量角器的外侧圆周中心转动而实现进针导管倾斜角度变化。该装置能够提高穿刺角度的准确度,从而提高穿刺的效率和成功率。(The invention relates to a puncture auxiliary positioning device under the guidance of CT, which is characterized in that: including the fixed band, be located the panel of fixed band top, locate protractor and the needle insertion pipe on the panel, be provided with two mutually perpendicular's spirit level on the panel, link to each other through a plurality of adjustable length's regulation pole between fixed band and the panel, needle insertion pipe links to each other with the protractor cooperation so that needle insertion pipe one end can be followed the outside circumference of protractor and rotated around the outside circumference center of protractor and realize that needle insertion pipe inclination changes. The device can improve the accuracy of puncture angle to improve the efficiency and the success rate of puncture.)

1. The utility model provides a puncture auxiliary positioning device under CT guide which characterized in that: including the fixed band, be located the panel of fixed band top, locate protractor and the needle insertion pipe on the panel, be provided with two mutually perpendicular's spirit level on the panel, link to each other through a plurality of adjustable length's regulation pole between fixed band and the panel, needle insertion pipe links to each other with the protractor cooperation so that needle insertion pipe one end can be followed the outside circumference of protractor and rotated around the outside circumference center of protractor and realize that needle insertion pipe inclination changes.

2. The CT-guided puncture assisting positioning apparatus according to claim 1, wherein: the panel is rectangle, adjust the pole and have four and distribute in the four corners of panel, one of them spirit level and the long limit parallel arrangement of panel and the broadside parallel arrangement of another spirit level and panel.

3. The CT-guided puncture assisting positioning apparatus according to claim 2, wherein: the panel is provided with a sliding groove arranged along the long edge direction of the panel, a sliding strip capable of sliding in the sliding groove is clamped in the sliding groove, and the protractor is fixedly arranged on the sliding strip.

4. The CT-guided puncture assisting positioning apparatus according to claim 1, wherein: the device still includes the rectangle frame that the perpendicular to protractor set up, the arc wall that has on the protractor set up along the outside circumference of protractor, the one end of rectangle frame rotates with the outside circumference center of protractor and links to each other and the other end is spacing and can remove along the arc wall by the arc wall, the rectangle frame is kept away from protractor one side and is rotated and be connected with two dead levers that length equals, the needle inserting pipe both ends are rotated respectively and are connected at two dead lever lower extremes.

5. The CT-guided puncture assisting positioning device of claim 4, wherein: the outside circumference center of protractor is equipped with the through-hole, the limit that the rectangle frame corresponds the end outwards extends and stretches into in the through-hole, the limit that the rectangle frame is close to protractor one side is equipped with the slider, the slider card is established in the arc wall and can slide in the arc wall.

6. The CT-guided puncture assisting positioning apparatus according to claim 1, wherein: adjust the pole including setting up first threaded rod on the fixed band, set up the second threaded rod on the panel and with first threaded rod and the regulation section of thick bamboo of the free end threaded connection of second threaded rod, adjust a section of thick bamboo rotation in-process, first threaded rod and the relative regulation section of thick bamboo of second threaded rod advance in step or screw-out.

7. The CT-guided puncture assisting positioning apparatus according to claim 1, wherein: the fixed band including the upper strata that is used for setting up first threaded rod and the lower floor that can paste with patient's thorax skin, upper strata and lower floor are colluded the thread gluing through primary and secondary hair and are pasted fixedly.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a puncture auxiliary positioning device under the guidance of a CT (computed tomography).

Background

At present, the incidence rate of lung diseases is increasing, clinically common lung diseases comprise lung infection, lung benign tumor, lung malignant tumor and the like, and in order to determine the disease type and select a reasonable treatment scheme, percutaneous lung puncture is generally adopted clinically to assist diagnosis or treatment. At present, when medical staff perform lung aspiration biopsy operation under CT guidance, metal materials are firstly used as reference objects on the body surface of an aspiration target, and a puncture point, a puncture angle and a puncture depth are determined according to the relation between a lung focus and the metal materials on a scanned image through CT scanning, so that the puncture point and the puncture depth are easy to grasp according to CT, but the puncture angle can only be adjusted by personal experience, an operator can adjust the puncture angle by feeling in a free hand during needle insertion and a needle insertion process, and particularly when small or deep focuses are punctured, if the needle insertion angle is slightly deviated, the puncture needle needs to be retracted to adjust the needle insertion angle, then the puncture is performed again, and CT scanning is performed again to determine the accuracy of the needle insertion position. This easily causes puncture failure and increases the probability of complications during operation, and also increases the pain of the patient, so it is necessary to design a puncture auxiliary positioning device to improve the accuracy of the needle insertion angle.

Although the accuracy of the needle insertion angle is improved by using auxiliary positioning devices such as a protractor and the like clinically at present, the placing level of the protractor cannot be ensured in the operation, and the angle cannot correspond to the angle presented by the CT, so that the clinical use effect is not obviously improved.

Disclosure of Invention

The invention mainly aims to provide a puncture auxiliary positioning device under CT guidance, which can improve puncture precision, has a simple structure and is convenient to operate.

In order to realize the purpose, the invention adopts the technical scheme that: the utility model provides a puncture auxiliary positioning device under CT guide which characterized in that: including the fixed band, be located the panel of fixed band top, locate protractor and the needle insertion pipe on the panel, be provided with two mutually perpendicular's spirit level on the panel, link to each other through a plurality of adjustable length's regulation pole between fixed band and the panel, needle insertion pipe links to each other with the protractor cooperation so that needle insertion pipe one end can be followed the outside circumference of protractor and rotated around the outside circumference center of protractor and realize that needle insertion pipe inclination changes.

Furthermore, the panel is rectangular, the adjusting rods are provided with four and distributed at four corners of the panel, one of the gradienters is arranged in parallel with the long edge of the panel, and the other gradienter is arranged in parallel with the wide edge of the panel.

Furthermore, the panel is provided with a sliding groove arranged along the long side direction of the panel, a sliding strip capable of sliding in the sliding groove is clamped in the sliding groove, and the protractor is fixedly arranged on the sliding strip.

Furthermore, the device still includes the rectangle frame that the perpendicular to protractor set up, the arc wall that has the outside circumference along the protractor on the protractor set up, the one end of rectangle frame rotates with the outside circumference center of protractor and links to each other and the other end is spacing and can follow the arc wall and remove by the arc wall, the rectangle frame is kept away from protractor one side and is rotated and be connected with two dead levers that length equals, the needle inserting pipe both ends are rotated respectively and are connected at two dead lever lower extremes.

Furthermore, a through hole is formed in the center of the circumference of the outer side of the protractor, the edge of the corresponding end of the rectangular frame extends outwards and extends into the through hole, a sliding block is arranged on the edge of one side, close to the protractor, of the rectangular frame, and the sliding block is clamped in the arc-shaped groove and can slide in the arc-shaped groove.

Furthermore, adjust the pole including setting up first threaded rod on the fixed band, set up the second threaded rod on the panel and with first threaded rod and the second threaded rod free end threaded connection's an adjusting section of thick bamboo, adjust a section of thick bamboo rotation in-process, first threaded rod and second threaded rod adjust a section of thick bamboo relatively and screw in or screw out in step.

Further, the fixed band is including the upper strata that is used for setting up first threaded rod and the lower floor that can paste with patient's thorax skin, upper strata and lower floor are through primary and secondary hair hook thread gluing paste fixedly.

Compared with the prior art, the invention has the following advantages:

the panel can be adjusted to the horizontal position by arranging the two vertical gradienters on the panel and adjusting the four adjusting rods, so that an included angle formed by a path of the puncture needle reaching a target position through a puncture point and the panel is consistent with an included angle measured by CT scanning, the puncture needle can be guided to puncture rapidly and accurately, the accuracy and the success rate of puncture are improved, complications are reduced, and the pain of a patient is relieved while the convenience is brought to the clinical operation of medical workers; through setting up spout and draw runner, conveniently adjust the needle inserting pipe so that the needle inserting pipe aims at the puncture position, improved operating efficiency.

Drawings

Fig. 1 is a schematic overall structure diagram of an auxiliary positioning device according to the present application.

Fig. 2 is a schematic front view of the structure of fig. 1.

Fig. 3 is a right-view structural diagram of fig. 1.

Fig. 4 is a schematic top view of fig. 1.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.

Fig. 1 to 4 show that this kind of puncture auxiliary positioning device under CT guide, as shown in the figure, including fixed band 1, the panel 2 that is located fixed band 1 top, locate protractor 3 and the needle insertion pipe 4 on the panel 2, pjncture needle (not shown in the figure) passes needle insertion pipe 4 and punctures the sample, be provided with two mutually perpendicular's spirit levels 5 on the panel 2, link to each other through a plurality of adjustable length's regulation pole 6 between fixed band 1 and the panel 2, needle insertion pipe 4 links to each other with the cooperation of protractor 3 so that needle insertion pipe 4 one end can be followed the outside circumference of protractor 3 and rotated around the outside circumference center of protractor 3 and realize needle insertion pipe 4 inclination and change.

Specifically, the panel 2 is rectangular, the adjusting rods 6 are four and distributed at four corners of the panel 2, one of the gradienters 5 is arranged in parallel with the long side of the panel 2, and the other gradienter 5 is arranged in parallel with the wide side of the panel 2.

In order to adjust the position of the needle insertion catheter 4 to make the lower end of the needle insertion catheter align with the needle insertion position, the panel 2 is provided with a sliding groove 21 arranged along the long side direction of the panel 2, a sliding strip 22 capable of sliding in the sliding groove 21 is clamped in the sliding groove 21, the protractor 3 is fixedly arranged on the sliding strip 22, and meanwhile, in order to prevent the sliding strip 22 from slipping from the sliding groove 21, fixing clamps 23 capable of limiting the sliding strip 22 are arranged at two ends of the panel 2.

In this embodiment, the device still includes the rectangle frame 7 that perpendicular to protractor 3 set up, the arc wall 31 that sets up along the outside circumference of protractor 3 has on the protractor 3, the one end of rectangle frame 7 rotates with the outside circumference center of protractor 3 and links to each other and the other end is spacing by arc wall 31 and can move along arc wall 31, rectangle frame 7 keeps away from protractor 3 one side and rotates and be connected with the dead lever 8 that two lengths equal, it connects at two dead lever 8 lower extremes respectively to advance the needle pipe 4 both ends, and the corresponding side of dead lever 8, rectangle frame 7 and advance needle pipe 4 constitute parallelogram like this, advances the contained angle between needle pipe 4 and panel 2 and the contained angle between rectangle frame 7 and panel 2 keep unanimous for it is more convenient that the angle of advancing needle pipe 4 is adjusted.

Specifically, the outside circumference center of protractor 3 is equipped with through-hole 32, the limit that rectangle frame 7 corresponds the end outwards extends and stretches into in the through-hole, the limit that rectangle frame 7 is close to protractor 3 one side is equipped with slider 71, slider 71 card is established in arc wall 31 and can slide in arc wall 31, and in this embodiment, arc wall 31 is a logical groove that runs through, and slider 71 is a screw rod that sets up at rectangle frame 7 corresponding side, and the screw rod runs through arc wall 31 and screw rod free end cover and is equipped with stop nut. In this embodiment, the fixing rod 8 is provided with an adjustable length, and the length can be adjusted by matching a threaded rod with a sleeve, so that the height of the needle inserting catheter 4 can be adjusted conveniently, and the puncture needle can be aligned with the puncture position more conveniently.

In the using process, the sliding block 71 slides in the arc-shaped groove 31, the inclination angle of the rectangular frame 7 can be changed, the inclination angle of the needle inserting guide tube 4 can be changed along with the change of the inclination angle of the rectangular frame 7, namely, the included angle between the needle inserting guide tube 4 and the panel 2 is changed, and therefore the angle adjustment during the puncture of the puncture needle is realized. It should be noted that the angle adjustment range of the rectangular frame 7 is 0 to 90 degrees, and if the needle insertion angle exceeds 90 degrees, the fixing band 1 needs to be bound on the body of the patient in the other direction.

As a preferred embodiment, the adjusting rod 6 includes a first threaded rod 61 disposed on the fixing band 1, a second threaded rod 62 disposed on the panel 2, and an adjusting cylinder 63 in threaded connection with free ends of the first threaded rod 61 and the second threaded rod 62, and the first threaded rod 61 and the second threaded rod 62 synchronously screw in or screw out relative to the adjusting cylinder 63 during the rotation of the adjusting cylinder 63 through the matching arrangement of the first threaded rod 61 and the second threaded rod 62 with the thread direction on the adjusting cylinder 63.

In this embodiment, fixed band 1 includes the upper strata that is used for setting up first threaded rod 61 and the lower floor that can paste with patient's thorax skin, upper strata and lower floor are fixed through primary and secondary hair hook thread gluing. In the using process, the upper layer, the first screw 61, the panel 2, the protractor 3 and other components arranged on the upper layer can be recycled, the lower layer is an adhesive tape made of disposable medical soft materials, and after one patient uses the adhesive tape, the lower layer is replaced to be used by another patient.

The procedure for use of the device is described below in terms of lung puncture:

firstly, CT examination is carried out on a patient, a puncture position is determined, a marked line is made, a fixing band 1 is tied on the thorax of the patient, an inserting needle catheter 4 is aligned with the marked line, certainly, the inserting needle catheter 4 can be arranged to be abutted against the fixing band 1 in the horizontal direction, the inserting needle catheter 4 is naturally aligned with the marked line after the edge of the fixing band 1 is attached to the marked line, then an adjusting rod 6 is adjusted to enable bubbles of two gradienters 5 to be positioned in the middle of the gradienters 5 even if the gradienters 5 are horizontal, then a sliding slide bar 22 is slid to enable the lower end of the inserting needle catheter 4 to be aligned with the puncture position, then a sliding block 71 is slid to a specified angle position in an arc-shaped groove 31 according to a preset included angle measured by CT scanning, and finally, a. It should be noted that the device is not only suitable for lung puncture, but also can be used for puncture operations of other organs.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.