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Skin surface indwelling instrument for guiding puncture

A skin surface and device technology, applied in the field of medical devices, can solve problems such as inability to guide, affect patient treatment, and inability to tunnel protection.

Inactive Publication Date: 2017-10-10
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the above-mentioned product can only ensure that the puncture tunnel is occupied in the interval of hemodialysis. Since it is taken out from the puncture tunnel during the puncture process, it cannot protect the immature tunnel during puncture. It also cannot guide the puncture process, which may destroy the formation of the original puncture tunnel, thereby affecting the treatment of patients.

Method used

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  • Skin surface indwelling instrument for guiding puncture
  • Skin surface indwelling instrument for guiding puncture
  • Skin surface indwelling instrument for guiding puncture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0218] figure 1 A schematic diagram of the split structure of the skin surface indwelling device for guiding puncture in Embodiment 1 of the present invention is shown.

[0219] figure 2 A top view of the structure of the indwelling instrument for guiding puncture in Embodiment 1 is further shown.

[0220] In order to further clearly show its structure, image 3 A side sectional view of the indwelling instrument for guiding puncture in Embodiment 1 is shown.

[0221] Such as figure 1 , figure 2 with image 3 As shown, in this embodiment, the skin surface indwelling instrument for guiding puncture according to the present invention includes: a support 11 made of PC material, an adhesive layer 12, and an indwelling tube body 13 made of polyurethane material and seals 141 and 142. Among them, the support 11 is in indirect contact with the skin surface through the adhesive layer 12 pasted on its bottom surface, thereby providing a stable support for the entire skin surfac...

Embodiment 2

[0253] Figure 18 with Figure 19 It shows the structure of the skin surface indwelling instrument for guiding puncture in the second embodiment of the present invention.

[0254] Such as Figure 18 with Figure 19 As shown, in this embodiment, the skin surface indwelling instrument indwelling tube for guiding puncture includes a mouse-shaped support 21 made of PC material and an indwelling tube fixedly connected with the support 21 . Wherein, the support 21 includes a separate supporting part 211 and a rear cover 212 , and the support 21 has an opening O and a cavity connected to the opening O for accommodating the indwelling tube. from Figure 19 It can be clearly seen that the opening O is in the shape of a wedge whose diameter gradually decreases from the outside to the inside, and the opening of this structure can guide the puncture needle entering the channel. In the indwelling state, the bottom surface of the holder 21 is in contact with the skin surface of the sub...

Embodiment 3

[0270] Figure 21 It shows the side view of the third embodiment of the indwelling instrument for guiding puncture according to the present invention.

[0271] Figure 22 It shows the top view of the third embodiment of the indwelling device for guiding puncture according to the present invention.

[0272] Figure 23 It shows the side sectional view of the indwelling device for guiding puncture in the third embodiment of the present invention.

[0273] Such as Figure 21 , Figure 22 with Figure 23 As shown, in this embodiment, the skin surface indwelling instrument for guiding puncture includes a support 31 made of PC material, an indwelling tube body 33 fixed in the support 31 and a sealing pin 44 . Wherein, the support has an opening 311 , the sealing pin 44 is inserted into the indwelling tube body 33 through the opening 311 , and its tail end protrudes from the distal end of the indwelling tube body 33 . from Figure 23 It can be seen from the figure that in orde...

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Abstract

The invention discloses a skin surface indwelling instrument for guiding puncture. The skin surface indwelling instrument comprises an indwelling tube body, a support base and a sealing part, wherein a channel extending along the length direction of the indwelling tube body basically is arranged in the indwelling tube body, the channel is used for guiding a puncture needle, the indwelling tube body is provided with a near end and a far end, the near end is located above the skin surface under the indwelling occupation state, and the far end is located below the skin surface under the indwelling occupation state; the bottom of the support base is provided with a bottom surface which is in direct or indirect contact with the skin surface, and the support base supports and fixes the indwelling pipe body; the sealing part is arranged to seal the channel. With the skin surface indwelling instrument for guiding puncture, the mature time of a puncture tunnel in the buttonhole puncture method can be shortened, and thus the puncture tunnel is established. Moreover, the skin surface indwelling instrument also can guide the puncture needle during puncturing, and protect the immature puncture tunnel.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical device for indwelling a skin surface. Background technique [0002] Patients with kidney disease generally need hemodialysis treatment at a frequency of 2 to 3 times a week. During hemodialysis, it is necessary to insert a dialysis needle or an indwelling needle into the human body, and the dialysis needle or indwelling needle needs to enter a blood vessel through the skin, thus causing great pain to patients receiving hemodialysis treatment. [0003] The currently used dialysis needle or indwelling needle insertion methods mainly include regional puncture method, rope ladder puncture method and buttonhole puncture method. [0004] Among them, the regional puncture method is a random puncture method within the range of available blood vessels. The advantage of the regional puncture method is that it is easy to operate and requires less skill for the operator. The disadvantage of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158
CPCA61M5/158A61M2005/1586A61M2005/1587A61M2205/0205A61M5/3287A61B17/3403A61M39/0247A61M1/3661A61M39/06A61M2205/0216A61M2039/066A61B2017/00951A61B2017/00889A61M2039/0646
Inventor 冯勇薛跃强宋健黄凯潘成瑞汤欣周键明袁振华张晶胡炜
Owner MEDTRONIC INC
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