CN210077821U

CN210077821U - Universal body surface angle guiding device for simple CT guided puncture

Info

Publication number: CN210077821U
Application number: CN201920681265.0U
Authority: CN
Inventors: 陈望; 叶萍; 徐高峰; 卢定友; 孙维高; 郭荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-02-18
Anticipated expiration: 2029-05-13

Abstract

A simple CT-guided universal body surface angle guider for puncture comprises a base, a fold telescopic tube and a puncture needle tube; the base is of a plate body structure; a puncture hole penetrating through the upper end and the lower end of the base is formed in the middle of the base; the lower end of the fold extension tube is fixed around the upper end of the puncture hole of the base; the lower end of the needle penetrating tube is fixed at the upper end of the fold telescopic tube; the needle penetrating tube, the fold telescopic tube and the puncture holes in the base are communicated from top to bottom in sequence. The puncture biopsy needle can quickly and accurately reach a focus target puncture point along the set angle and depth of the fold telescopic tube, so that the puncture needle can reach a target point at one time after invading a human body, thereby reducing the operation time and reducing the complications caused by repeated puncture.

Description

Universal body surface angle guiding device for simple CT guided puncture

Technical Field

The utility model relates to a puncture universal body surface angle guiding device under simple and easy CT guide.

Background

In recent years, with the popularization of CT (computer tomography) scanners, percutaneous CT guided needle biopsy has been widely used in clinical medical institutions at all levels due to its small trauma, precise positioning, and simple and quick operation. By means of the technology, cytological or histological biopsy or tissue culture can be carried out on target focus tissues to determine the etiology, and local treatment of the target focus can also be carried out by adopting different methods. In the actual operation process of the operation, how to improve the success rate of reaching the target focus at one time and puncture complications are always the focus of clinical research and improvement. In the operation, the puncture needle point and the puncture angle are the key points for ensuring the one-time success and reducing the complication. The selection of the needle insertion point can be accurately selected by researching the prior CT examination image before the operation and utilizing the body surface fence and the CT scanner laser positioning, but the needle insertion angle is mostly judged by the experience of an operator, particularly when the needle insertion angle is slightly deviated, the needle insertion initial angle is about to cause that the puncture cannot accurately reach the target puncture point (target point) of the set focus, the puncture needle needs to be withdrawn for re-puncture after readjustment, the repeated puncture is one of the very important factors for various complications, the complications comprise bleeding and infection, and even serious patients can die.

Disclosure of Invention

To the weak point of above-mentioned prior art, the utility model provides a problem do: provides a simple universal body surface angle guider for puncture under the guidance of CT with accurate needle insertion angle.

In order to solve the above problem, the utility model discloses the technical scheme who takes as follows:

a simple CT-guided universal body surface angle guider for puncture comprises a base, a fold telescopic tube and a puncture needle tube; the base is of a plate body structure; a puncture hole penetrating through the upper end and the lower end of the base is formed in the middle of the base; the lower end of the fold extension tube is fixed around the upper end of the puncture hole of the base; the lower end of the needle penetrating tube is fixed at the upper end of the fold telescopic tube; the needle penetrating tube, the fold telescopic tube and the puncture holes in the base are communicated from top to bottom in sequence.

Further, the device also comprises a locking mechanism; the locking mechanism comprises a lower moving column, a lower sleeve joint cylinder, a lower rotating shaft, an upper positioning column, an upper rotating shaft, an upper connecting column and an upper rotating telescopic screw rod; one side of the base is provided with a sliding groove; the lower end of the lower moving column is slidably clamped in the sliding groove of the base; the lower end of the lower sleeve connecting cylinder is rotatably connected with the upper end of the lower moving column through a lower rotating shaft; the upper end of the lower sleeve is provided with an internal thread groove; one end of the upper positioning column is fixed on one side of the outer part of the needle penetrating tube; the upper end of the upper connecting column is rotatably connected with the other end of the upper positioning column through an upper rotating shaft; a sliding cavity is arranged in the upper connecting column; the upper end of the upper rotary telescopic screw rod is provided with a rotary sliding clamping plate; the upper end of the upper rotary telescopic screw rod is rotationally and slidably clamped in a sliding cavity of the upper connecting column through a rotary sliding clamping plate; the lower end of the upper rotary telescopic screw rod penetrates out of the lower end of the upper connecting column and extends downwards; the lower end thread of the upper rotary telescopic screw rod is rotatably connected in the internal thread groove of the lower sleeve joint barrel.

Further, the sliding cavity is of a cylindrical cavity structure; the rotary sliding clamping plate is of a circular structure.

Furthermore, the base is a rectangular plate with the length and the width of 3cm respectively.

Furthermore, the puncture hole in the middle of the base is of a circular structure; the diameter of the puncture hole is 3 mm.

Furthermore, the fold telescopic pipe is of a circular pipe structure; the length of the fold telescopic pipe is 5 mm; the minimum diameter of the corrugated telescopic pipe is 5 mm.

Furthermore, the needle penetrating tube is of a circular tube structure; the length of the needle penetrating tube is 12 mm; the inner diameter of the needle penetrating tube is 3 mm.

The beneficial effects of the utility model

1. The utility model discloses a be fixed in set body surface puncture point department with the base through medical sticky tape, put into the needle-threading pipe with the ordinary syringe needle that the anesthesia was used in, utilize the flexible universal regulatory function of fold, adjustment syringe needle direction, thereby utilize the path direction of measuring the syringe needle and can produce under the CT scan with the radial artifact of needle insertion direction unanimity judge whether the navigation tube direction is unanimous with set focus target, and can carry out the fine setting of cross axle and the arbitrary direction of axis of ordinates, confirm the distance of the pathogenic kitchen target point of direction after-measuring through the body surface. The puncture biopsy needle can quickly and accurately reach a focus target puncture point along the set angle and depth of the fold telescopic tube, so that the puncture needle can reach a target point at one time after invading a human body, thereby reducing the operation time and reducing the complications caused by repeated puncture.

2. The utility model adds a locking mechanism, and the rotation of the upper rotary telescopic screw rod is matched with the rotation and the movement of the lower sleeve; make the lower extreme screw thread swivelling joint of last rotation telescopic screw in the internal thread groove of cup jointing a section of thick bamboo down, stabilized the utility model discloses a structure.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the utility model on the surface of human body.

Fig. 3 is a schematic structural view of fig. 1 with a locking mechanism added.

Fig. 4 is a schematic view of fig. 2 with a locking mechanism added.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, a simple CT-guided universal body surface angle guiding device for puncture comprises a base 1, a fold telescopic tube 2 and a needle-threading tube 3; the base 1 is of a plate body structure; a puncture hole 11 penetrating through the upper end and the lower end of the base 1 is formed in the middle of the base; the lower end of the fold extension tube 2 is fixed around the upper end of the puncture hole of the base; the lower end of the needle threading tube 3 is fixed at the upper end of the fold telescopic tube 2; the needle threading tube 3, the fold telescopic tube 2 and the puncture holes 11 on the base 1 are communicated from top to bottom in sequence. Further, the base 1 is a rectangular plate with a length and a width of 3 cm. Further, the puncture hole 11 in the middle of the base 1 is of a circular structure; the diameter of the puncture hole 11 is 3 mm. Further, the corrugated telescopic pipe 2 is of a circular pipe structure; the length of the corrugated expansion pipe 2 is 5 mm; the minimum diameter of the corrugated expansion pipe 2 is 5 mm. Further, the needle tube 3 is a circular tube structure; the length of the needle tube 3 is 12 mm; the inner diameter of the needle tube 3 is 3 mm.

Example 2

As shown in fig. 3 and 4, the present embodiment refers to embodiment 1 except that a lock mechanism 7 is added; the locking mechanism 7 comprises a lower moving column 71, a lower sleeve 73, a lower rotating shaft 72, an upper positioning column 74, an upper rotating shaft 75, an upper connecting column 76 and an upper rotating telescopic screw 77; one side of the base 1 is provided with a sliding groove 12; the lower end of the lower moving column 71 is slidably clamped in the sliding groove 12 of the base 1; the lower end of the lower sleeve connecting cylinder 73 is rotatably connected with the upper end of the lower moving column 71 through a lower rotating shaft 72; the upper end of the lower sleeve joint cylinder 73 is provided with an internal thread groove 731; one end of the upper positioning column 74 is fixed at one side of the outer part of the needle penetrating tube 3; the upper end of the upper connecting column 76 is rotatably connected to the other end of the upper positioning column 74 through an upper rotating shaft 75; a sliding cavity 761 is arranged in the upper connecting column 76; the upper end of the upper rotary telescopic screw rod 77 is provided with a rotary sliding clamping plate 771; the upper end of the upper rotary telescopic screw rod 77 is rotationally and slidably clamped in the sliding cavity 761 of the upper connecting column 76 through a rotary sliding clamping plate 771; the lower end of the upper rotary telescopic screw 77 penetrates out of the lower end of the upper connecting column 76 and extends downwards; the lower end thread of the upper rotary telescopic screw 77 is rotatably connected in the internal thread groove 731 of the lower sleeve 73. Further, the sliding cavity 761 has a cylindrical cavity structure; the rotary sliding engagement plate 771 has a circular structure.

The utility model discloses a use as follows: according to the preparation before the operation, a puncture needle inserting point is determined, and the central puncture hole 11 of the base 1 is placed at the puncture needle inserting point which is sterilized and locally anesthetized and is fixed by using a medical adhesive plaster. The needle 4 used for local anesthesia is placed in the needle penetrating tube 3, and the folding telescopic tube 2 is rotationally adjusted to determine the approximate needle inserting direction for CT scanning. And (3) measuring the direction of the needle head 4 and the generated radiation artifact consistent with the direction of the needle head 4 to carry out deep extension, determining that the puncture angle is correct, and measuring the distance between the body surface and the focus target point 6. The needle head 4 in the puncture needle tube 3 is taken out, and puncture is performed in the direction of the bellows 2 by a puncture needle or a cutting needle at a depth measured in advance. And (3) scanning again to confirm that the puncture needle or the cutting needle is at the focus set target point 6, then sucking cells or cutting tissues, and obtaining focus cells or tissue components for further pathological examination or etiological culture. The guide device is made of plastic material, and can be manufactured by one-step molding, the cost is low, and the use method is simple and easy.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A simple universal body surface angle guider for puncture under the guidance of CT is characterized by comprising a base, a fold telescopic tube and a puncture needle tube; the base is of a plate body structure; a puncture hole penetrating through the upper end and the lower end of the base is formed in the middle of the base; the lower end of the fold extension tube is fixed around the upper end of the puncture hole of the base; the lower end of the needle penetrating tube is fixed at the upper end of the fold telescopic tube; the needle penetrating tube, the fold telescopic tube and the puncture holes in the base are communicated from top to bottom in sequence.

2. The simple CT guided puncture universal body surface angle guide of claim 1, further comprising a locking mechanism; the locking mechanism comprises a lower moving column, a lower sleeve joint cylinder, a lower rotating shaft, an upper positioning column, an upper rotating shaft, an upper connecting column and an upper rotating telescopic screw rod; one side of the base is provided with a sliding groove; the lower end of the lower moving column is slidably clamped in the sliding groove of the base; the lower end of the lower sleeve connecting cylinder is rotatably connected with the upper end of the lower moving column through a lower rotating shaft; the upper end of the lower sleeve is provided with an internal thread groove; one end of the upper positioning column is fixed on one side of the outer part of the needle penetrating tube; the upper end of the upper connecting column is rotatably connected with the other end of the upper positioning column through an upper rotating shaft; a sliding cavity is arranged in the upper connecting column; the upper end of the upper rotary telescopic screw rod is provided with a rotary sliding clamping plate; the upper end of the upper rotary telescopic screw rod is rotationally and slidably clamped in a sliding cavity of the upper connecting column through a rotary sliding clamping plate; the lower end of the upper rotary telescopic screw rod penetrates out of the lower end of the upper connecting column and extends downwards; the lower end thread of the upper rotary telescopic screw rod is rotatably connected in the internal thread groove of the lower sleeve joint barrel.

3. The simple CT-guided universal body surface angle introducer for puncture according to claim 2, wherein the sliding cavity is a cylindrical cavity structure; the rotary sliding clamping plate is of a circular structure.

4. The simple CT-guided universal body surface angle introducer for puncture according to claim 1, wherein the base is a rectangular plate with a length and a width of 3cm each.

5. The simple CT-guided universal body surface angle introducer for puncture under guidance of a patient according to claim 1, wherein the puncture hole in the middle of the base is of a circular structure; the diameter of the puncture hole is 3 mm.

6. The simple CT-guided universal body surface angle introducer for puncture according to claim 1, wherein the corrugated telescopic tube has a circular tube structure; the length of the fold telescopic pipe is 5 mm; the minimum diameter of the corrugated telescopic pipe is 5 mm.

7. The simple CT-guided universal body surface angle introducer for puncture according to claim 1, wherein the puncture needle tube has a circular tube structure; the length of the needle penetrating tube is 12 mm; the inner diameter of the needle penetrating tube is 3 mm.