CN108245230B

CN108245230B - Accurate piercing depth

Info

Publication number: CN108245230B
Application number: CN201810264517.XA
Authority: CN
Inventors: 万肖蓬; 瞿星辉
Original assignee: Guangzhou Welllead Medical Equipment Co ltd
Current assignee: Guangzhou Welllead Medical Equipment Co ltd
Priority date: 2018-03-28
Filing date: 2018-03-28
Publication date: 2024-03-22
Anticipated expiration: 2038-03-28
Also published as: CN108245230A

Abstract

The invention discloses an accurate puncture device which comprises a sheath tube and a obturator inserted into the sheath tube, wherein a sighting device is fixedly sleeved at the upper end of the sheath tube, a positioning ring is sleeved on the sheath tube in a sliding manner, a first developing sighting ring is arranged on the sighting device, a second developing sighting ring matched with the first developing sighting ring is arranged on the positioning ring, and the central connecting line of the first developing sighting ring and the second developing sighting ring coincides with the central line of the sheath tube. The accurate puncture scheme of the invention has the advantages of accurate puncture, high aiming speed, convenient adjustment, high failure rate and high operation efficiency, overcomes the problems of difficult puncture and high failure rate, shortens the operation time, improves the success rate of puncture, reduces the damage to patients caused by secondary puncture, reduces complications and is convenient and efficient to operate.

Description

Accurate piercing depth

Technical Field

The invention relates to the field of medical instruments, in particular to an accurate puncture device.

Background

In the known technical field, accurate puncture is always a difficult problem for a surgeon, and success or failure of the puncture directly determines success or failure of the operation. The success rate of the current operation puncture mainly depends on the experience of doctors, a longer learning curve is needed, the puncture inaccuracy can be caused by a little carelessness, the secondary puncture is needed, the damage is caused to the patient, and the complications can be caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the accurate puncture side device which is accurate in puncture, high in success rate of puncture, high in aiming speed and convenient to adjust.

In order to achieve the above purpose, the invention provides an accurate puncture device, which comprises a sheath tube and a obturator inserted into the sheath tube, wherein a sighting device is fixedly sleeved at the upper end of the sheath tube, a positioning ring is sleeved on the sheath tube in a sliding manner, a first developing sighting ring is arranged on the sighting device, a second developing sighting ring matched with the first developing sighting ring is arranged on the positioning ring, and the central connecting line of the first developing sighting ring and the second developing sighting ring coincides with the central line of the sheath tube.

Further, the diameters of the first developing aiming ring and the second developing aiming ring are the same; and at least one third developing aiming ring is further arranged on the aiming device, the third developing aiming ring and the first developing aiming ring are concentrically arranged, and the diameter of the third developing aiming ring is larger than that of the first developing aiming ring.

Further, the first developing aiming ring and the second developing aiming ring are metal rings capable of developing under X-ray.

As a further improvement, the upper end of the sheath tube is provided with a connector for inserting the locating obturator into the sheath tube.

Furthermore, the obturator is of a single-tube or double-tube structure, and the connector is provided with a single-cavity or double-cavity hollow structure for positioning the obturator.

Furthermore, the connector is integrally or detachably arranged at the upper end of the sheath tube.

As a further improvement, the tip of the obturator extends a length of 1-60mm beyond the sheath.

As a further development, the sight is provided with a handle for pressing.

Advantageous effects

Compared with the prior art, the accurate puncture device has the following beneficial effects: according to the accurate puncture scheme, the developing rings of the sighting device and the positioning ring are overlapped by utilizing the three-point first-line principle, the treatment position is aimed at simultaneously, and the puncture tool can be observed and finely adjusted dynamically, so that the treatment position and the developing rings of the sighting device and the positioning ring are ensured to be in the same straight line, the accurate puncture of the tip of the obturator is ensured, the sighting speed is high, the adjustment is convenient, the problems of difficult puncture and high failure rate are overcome, the operation time can be shortened, the success rate of puncture is improved, the damage to a patient caused by secondary puncture is reduced, complications are reduced, and the operation is efficient and convenient; and the positioning ring can slide, so that whether the treatment position coincides with the development ring of the sighting device and the development ring of the positioning ring is detected dynamically, and the accurate puncture of the tip of the obturator to the treatment position is effectively ensured.

Drawings

FIG. 1 is a schematic view of the structure of the precision puncturing device of the present invention;

FIG. 2 is a schematic view of the sight of the present invention;

FIG. 3 is a schematic view of the positioning ring in the present invention.

In the figure: 1. a sheath; 2. a obturator; 3. a sight; 4. a connector; 5. a positioning ring; 6. a first developing aiming ring; 7. a handle; 8. a second developing aiming ring; 9. and a third developing aiming ring.

Detailed Description

The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.

The specific embodiments of the present invention are as follows: as shown in fig. 1-3, an accurate puncture device comprises a sheath tube 1 and a obturator 2 inserted into the sheath tube 1, wherein a sighting device 3 is fixedly sleeved at the upper end of the sheath tube 1, a positioning ring 5 is sleeved on the sheath tube 1 in a sliding manner, a first developing sighting ring 6 is arranged on the sighting device 3, a second developing sighting ring 8 matched with the first developing sighting ring 6 is arranged on the positioning ring 5, and the central connecting line of the first developing sighting ring 6 and the second developing sighting ring 8 coincides with the central line of the sheath tube 1. According to the scheme, under X-ray, the first developing aiming ring 6 of the sighting device 3 is overlapped with the second developing aiming ring 8 of the positioning ring 5 by moving the positioning ring 5, the treatment position is aimed at simultaneously, three-point one line is formed, the positioning ring 5 is slid, a puncture tool is observed and finely adjusted under dynamic conditions, the treatment position is ensured to be still in the same line with the first developing aiming ring 6 of the sighting device 3 and the second developing aiming ring 8 of the positioning ring 5, finally the obturator 2 is accurately punctured to the treatment position, the accurate puncture of the tip of the obturator 2 is ensured by the three-point one-line principle, the aiming speed is high, the adjustment is convenient, the problems of difficult puncture and high failure rate are overcome, the operation time is shortened, the success rate of puncture is improved, the damage to a patient caused by secondary puncture is reduced, complications are reduced, and the operation is efficient and convenient; moreover, the positioning ring 5 can be slid and the treatment position is aimed, so that the treatment position is overlapped with the first developing aiming ring 6 of the sighting device 3 and the second developing aiming ring 8 of the positioning ring 5 under dynamic adjustment, a three-point line is formed, and the accurate puncture of the tip of the obturator 2 to the treatment position is effectively ensured.

In the present embodiment, the first developing aiming ring 6 and the second developing aiming ring 8 have the same diameter; at least one third developing aiming ring 9 is also arranged on the aiming device 3, the third developing aiming ring 9 and the first developing aiming ring 6 are concentrically arranged, and the diameter of the third developing aiming ring 9 is larger than that of the first developing aiming ring 6. The developing area is increased through the third developing aiming ring 9 on the sighting device 3, the larger third developing aiming ring 9 can be aligned with the treatment position during aiming, the treatment range is rapidly defined, the accurate treatment position can be rapidly found, and the aiming speed is increased.

In this embodiment, the positioning ring 5 can slide along the tube wall of the sheath tube 1, the sliding direction of the positioning ring 5 coincides with the center line of the sheath tube 1, so that the positioning ring 5 is ensured not to deviate in dynamic sliding, and the tip of the obturator 2 is ensured to accurately aim at the treatment position.

In this embodiment, the first developing aiming ring 6 and the second developing aiming ring 8 are metal rings that can be developed under X-rays, so that the distinction is convenient, and the outline of the developing part is significant.

In the embodiment, the upper end of the sheath tube 1 is provided with a connector 4 for inserting the obturator 2 into the sheath tube 1, keeping the obturator 2 fit with the sheath tube 1, the obturator 2 is of a single-tube or double-tube structure, and the connector 4 is provided with a single-cavity or double-cavity hollow structure for positioning the obturator 2, so that the obturator 2 is well fixed; the structure of the connector 4 can also be a multi-cavity hollow structure according to actual needs, and can adapt to the use requirements of the structures of the sheath tube 1 and the closer 2 with different types.

In this embodiment, connector 4 integral type or detachable set up in sheath 1's upper end, and connector 4 is with obturator 2 and sheath 1 firm in connection, guarantees obturator 2 and sheath 1 looks adaptation.

In the embodiment, the length of the tip of the obturator 2 extending out of the sheath 1 is 1-60mm, and the tips with different lengths can be selected to be assembled on the obturator 2 for puncture treatment, so that the puncture requirement is met, and the tip of the obturator 2 is of a detachable structure.

In this embodiment, the sight 3 is provided with a handle 7 for pressing, which is convenient for holding the device, is convenient for aiming operation, is convenient for stress, and helps to improve the accuracy of puncture.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.

Claims

1. The utility model provides an accurate piercing depth, includes sheath pipe (1) and inserts obturator (2) in sheath pipe (1), its characterized in that, sheath pipe (1) upper end fixed cover is equipped with sight (3), slip cover is equipped with holding ring (5) on sheath pipe (1), be equipped with first development aiming ring (6) on sight (3), be equipped with on holding ring (5) with first development aiming ring (6) matched with second development aiming ring (8), first development aiming ring (6) with the center line of second development aiming ring (8) with the central line coincidence of sheath pipe (1), first development aiming ring (6) and second development aiming ring (8) diameter are the same.

2. An accurate penetration device according to claim 1, characterized in that at least one third developing aiming ring (9) is further provided on the aiming device (3) and the third developing aiming ring (9) is arranged concentrically with the first developing aiming ring (6), the diameter of the third developing aiming ring (9) being larger than the diameter of the first developing aiming ring (6).

3. An accurate penetration device according to claim 1, characterized in that the first developing aiming ring (6) and the second developing aiming ring (8) are metal rings which are developable under X-rays.

4. A precision puncture device according to any of claims 1-3, characterized in that the upper end of the sheath (1) is provided with a connector (4) for inserting the positioning obturator (2) into the sheath (1).

5. An accurate puncturing device as claimed in claim 4, wherein the obturator (2) is of a single or double tube construction, and the connector (4) is provided with a single or double lumen hollow structure for locating the obturator (2).

6. The precise puncture device according to claim 4, wherein the connector (4) is integrally or detachably arranged at the upper end of the sheath tube (1).

7. A precision puncturing device as claimed in any of claims 1-3, wherein the tip of the obturator (2) extends over a length of 1-60mm from the sheath (1).

8. A precision puncturing device as claimed in any of the claims 1-3, wherein the sight (3) is provided with a handle (7) for pressing.