Unlock instant, AI-driven research and patent intelligence for your innovation.

A slow-release positive pressure device for indwelling needles

An indwelling needle and slow-release technology, which is applied to needles and devices introduced into the body, etc., can solve the problems of easy formation of blocked tubes, limited sealing time, and inability to flow out the medicinal liquid.

Active Publication Date: 2017-12-22
LUOHE SHUGUANG HUIZHIKANG BIOTECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The disposable venous indwelling needles used clinically in clinical units of various medical institutions in China need to be sealed after the infusion to avoid clogging caused by blood coagulation in the tube. If the tube is not flushed before the next day's infusion, or the clot that has formed is flushed into the blood vessel, it is very easy to cause embolism in the blood vessel blocked during the blood circulation process. The patient brings great harm or even life-threatening. Although some patients are injected with anticoagulant drugs such as heparin sodium to prevent blood coagulation, and some patients who are allergic to anticoagulant drugs such as heparin sodium may also use normal saline to seal the tube. The tube time is limited, and it needs to be sealed many times. In addition, improper operation by nurses can easily cause tube blockage. Currently, there are technologies such as positive pressure joint devices on the market, and thin fiber drainage in the tube, which can only be used at that time. There is positive pressure, or because the clip is too tight, the pressure is too low, the liquid medicine cannot be released, and the liquid medicine will not flow out after a few minutes, and it is still easy to form a blocked tube. How to solve the problem of blood coagulation in the tube to prevent blood clots? Current problems to be solved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A slow-release positive pressure device for indwelling needles
  • A slow-release positive pressure device for indwelling needles
  • A slow-release positive pressure device for indwelling needles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 , figure 2 , image 3 Figure 4 and Figure 5 Shown, the present invention is made of protective cap (12), screw joint (1), front conduit (2), front tee (3), sustained release conduit (5), middle conduit (4), clip (6), rear Tee (7), rear conduit (8), tee seat (9), positive pressure joint (11) and liquid reservoir (10), the clip (6) is set on the middle conduit (4), and the slow-release conduit (5), the two ends of the middle conduit (4) are respectively connected with the double hole ends of the front tee (3) and the back tee (7), and the front conduit (2) is connected with the single hole and the front tee (3) respectively. The small end of the screw joint (1) is connected, the large end of the screw joint (1) is screwed to the protective cap (12), and the rear conduit (8) is connected to the single hole end of the rear tee (7) and the tee seat (9) respectively. The front part is connected, and the positive pressure joint (11) and the liquid rese...

Embodiment 2

[0035] Such as Figure 5 As shown, embodiment 2 of the present invention differs from embodiment 1 in that it consists of the needle assembly (16) of the Y-shaped indwelling needle, the catheter assembly (15) of the Y-type indwelling needle, the front catheter (2), and the front tee (3) , sustained-release catheter (5), middle catheter (4), clip (6), rear tee (7), rear catheter (8), tee seat (9), heparin cap (14) and reservoir (10 ), the clip (6) is set on the middle catheter (4), the two ends of the slow-release catheter (5) and the middle catheter (4) are respectively connected with the double-hole ends of the front and rear tees, and the front catheter (2) is respectively Connect with the single hole of the front tee (3) and the catheter assembly (15) branch pipe end of the Y-shaped indwelling needle, and the rear catheter (8) is connected with the single hole end of the rear tee (7) and the tee seat (9) respectively. The front part is connected, and the heparin cap (14) a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An indwelling needle sustained release positive pressure apparatus comprising a protective cap (12), a threaded connector (1), a front catheter (2), a front three-way tee (3), a sustained release catheter (5), an intermediate catheter (4), a clamp (6), a rear three-way tee (7), a rear catheter (8), a three-way tee base (9), a positive pressure connector (11), and a solution reservoir (10). The clamp (6) is sleeved onto the intermediate catheter (4). The sustained release catheter (5) and the intermediate catheter (4) are connected at either extremity respectively to the two-hole extremity of the front three-way tee (3) and that of the rear three-way tee (7). The other components are connected with each other. The indwelling needle sustained release positive pressure apparatus is provided with two catheters, one of which is the sustained release catheter (5) provided at the middle thereof with a micropore, while the other is the intermediate catheter (4) having a universal aperture. When the intermediate catheter (4) is clamped shut by the clamp (6), hydraulic pressure released by the positive pressure connector (11) and the solution reservoir (10) forms a pressure, a medicinal solution slowly flows out from the micropore of the sustained release catheter (5) into an indwelling needle catheter component (13 and 15) and then permeates into a blood vessel, thus effectively preventing thrombus formation. In addition, when infusion is required on the next day, normal infusion can be allowed simply by disinfecting a connecting part before connecting and by opening the clamp on the intermediate catheter.

Description

technical field [0001] The invention relates to a disposable medical device, in particular to a slow-release positive pressure device for an indwelling needle. Background technique [0002] The disposable venous indwelling needles used clinically in clinical units of various medical institutions in China need to be sealed after the infusion to avoid clogging caused by blood coagulation in the tube. If the tube is not flushed before the next day's infusion, or the clot that has formed is flushed into the blood vessel, it is very easy to cause embolism in the blood vessel blocked during the blood circulation process. The patient brings great harm or even life-threatening. Although some patients are injected with anticoagulant drugs such as heparin sodium to prevent blood coagulation, and some patients who are allergic to anticoagulant drugs such as heparin sodium may also use normal saline to seal the tube. The tube time is limited, and it needs to be sealed many times. In ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/158
CPCA61M5/158
Inventor 邹卫平邹浩然邱建芳
Owner LUOHE SHUGUANG HUIZHIKANG BIOTECH