CN111150896A

CN111150896A - Medical puncture drainage equipment

Info

Publication number: CN111150896A
Application number: CN202010189374.8A
Authority: CN
Inventors: 国滨; 付瑞萍; 李金芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-05-15

Abstract

The invention relates to a medical puncture drainage device. The light detector is arranged at the tip of the drainage position, so that the liquid flow change at the drainage position can be observed in one step at the fastest speed, the liquid flow speed change at the drainage position can be responded immediately, then the drainage operation is adjusted, and the hysteresis of judging after observing the drained liquid is avoided; the soft needle is used for puncture, and the fixed rod is pulled out after puncture, so that injury caused by movement of limbs during puncture can be avoided; the invention is also provided with a special rotary switch which is matched with the drainage device for use and can prevent backflow.

Description

Medical puncture drainage equipment

Technical Field

The invention relates to the field of medical products, in particular to medical puncture drainage equipment.

Background

The puncture drainage is to puncture and place a drainage tube under the external mediated positioning, and drain accumulated liquid out, thereby avoiding complications such as organ dysfunction or infection and the like. The most common clinical methods are thoracocentesis drainage and abdominocentesis drainage. If more effusion exists in the chest cavity, the respiratory activity of the lung is affected, and the symptoms of atelectasis, chest distress, short breath and the like appear in severe cases to cause hypoxia. Can be used for puncture drainage to make effusion flow out and improve lung function. If more effusion such as inflammatory exudate or bile is accumulated in the abdominal cavity, puncturing and drainage can be performed to promote effusion to be discharged and control the state of an illness.

Application number 201810331399.X discloses a puncture drainage device, sets up and blocks the part, restricts the pjncture needle in the drainage tube, avoids the pjncture needle to wear out the drainage tube and causes the accident to connect gradually first check valve, negative pressure emergence part, second check valve at pjncture needle tail end, make drainage liquid one-way flow, avoid the drainage liquid backward flow to cause the wound infection. Still set up the stock solution part that is used for saving drainage liquid, can carry out the drainage to a small amount of drainage liquid, the liquid entering stock solution part storage that the drainage goes out need not to use other devices supplementary. However, the conventional puncture drainage device is generally manually controlled, and has a certain hysteresis property in determining the control of the negative pressure based on the amount of liquid flowing out when puncture drainage is performed.

Disclosure of Invention

In order to solve the above problems, a medical puncture drainage device is provided, which includes a puncture part, a drainage part and a detection control part;

the puncture part comprises a puncture needle, a fixed rod and a fixed seat; the puncture needle is connected with the fixed seat, and the fixed rod can penetrate through the fixed seat and be inserted into the puncture needle;

the drainage part comprises a drainage fixer, a drainage bag and an injector, the drainage fixer is provided with a rotary switch, and the rotary switch is used for communicating the drainage bag with the puncture needle or the drainage bag with the injector;

the detection control part comprises a detection controller and a computer, an optical fiber bundle is arranged in the puncture needle and is connected with the detection controller, and the detection controller is connected with the computer; providing a light source and a light detector in the detection controller, wherein the light source can provide incident light for the optical fiber bundle; the optical fiber bundle comprises an incident optical fiber and a reflecting optical fiber, wherein the incident light is transmitted to a reflector of the puncture needle head part through the incident optical fiber, then reflected into the reflecting optical fiber and finally transmitted to the light detector; a cavity is arranged among the incident optical fiber, the reflecting optical fiber and the reflector, and the liquid flowing state of the head of the puncture needle can be judged according to the intensity of light reflected in the reflecting optical fiber; the computer controls the drainage intensity of the drainage part, namely the negative pressure intensity in the drainage bag according to the collected light intensity of the light detector.

The puncture needle is a soft needle and comprises a soft needle outer tube, an optical fiber tube and a needle head part, wherein the soft needle outer tube is made of a silica gel material, and the diameter of the soft needle outer tube is the same as that of the needle head part;

the optical fiber tube is arranged in the soft needle outer tube and is arranged close to the soft needle outer tube, the optical fiber tube is composed of an optical fiber bundle, and the interior of the optical fiber tube is hollow;

the needle head part comprises a sharp point and is made of metal materials, the needle head part is connected to one end of the soft needle outer tube, and the needle head part is of a solid structure; an opening and a cavity are arranged at the joint of the needle head part and the soft needle outer tube, so that the drainage liquid can enter the opening and flow into the optical fiber tube;

the cavity of the needle head part is provided with a reflecting surface which can reflect the light of the incident optical fiber to the reflecting optical fiber, and when liquid exists in the cavity, the light received by the reflecting optical fiber is changed due to the change of the refractive index;

the fixing seat is connected with the other end of the soft needle outer tube, the optical fiber tube is dispersed into single optical fibers and penetrates through the outer wall of the fixing seat to be connected to the detection control part, and liquid in the optical fiber tube flows into the fixing seat; the other end of the fixed seat is provided with a connector which can be connected with a drainage fixer;

the fixing rod can be inserted into the optical fiber tube from the hole of the connector and reaches the needle head part of the puncture needle, so that hardness is provided for the puncture needle when puncture is carried out.

One end of the drainage fixer can be connected into the connecting head of the fixed seat under the condition that the fixed rod is pulled out, so that liquid in the fixed seat enters the drainage fixer; the syringe is connected to the other end of the drainage fixer, and the drainage bag is connected to the side surface of the drainage fixer;

a rotary switch is arranged on the drainage bag, the diameter of the rotary switch is the same as that of the drainage fixer, and liquid in the fixing seat can enter the drainage bag by rotating the rotary switch to a first position; rotating the rotary switch to the second position causes the fluid in the drainage bag to enter the syringe.

The drainage bag is provided with a negative pressure controller, and the computer is connected with the drainage bag and controls the negative pressure of the negative pressure controller.

Has the advantages that:

the optical detector is arranged at the tip of the drainage position, so that the liquid flow change at the drainage position can be observed in one step at the fastest speed, the liquid flow speed change at the drainage position can be responded immediately, then the drainage operation is adjusted, and the hysteresis of judging after observing the drained liquid is avoided;

in addition, the invention uses the soft needle to puncture, and the fixed rod is pulled out after puncture, so that the injury caused by the movement of limbs during puncture can be avoided; the invention is also provided with a special rotary switch which is matched with the drainage device for use and can prevent backflow.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosed subject matter, are incorporated in and constitute a part of this specification. The drawings illustrate the implementations of the disclosed subject matter and, together with the detailed description, serve to explain the principles of implementations of the disclosed subject matter. No attempt is made to show structural details of the disclosed subject matter in more detail than is necessary for a fundamental understanding of the disclosed subject matter and various modes of practicing the same.

FIG. 1 is a schematic view of various components of the present invention;

FIG. 2 is a schematic view of the connection of the components of the present invention in various operating states;

fig. 3 is a schematic view of the rotary switch and the puncture needle of the present invention.

Detailed Description

The advantages, features and methods of accomplishing the same will become apparent from the drawings and the detailed description that follows.

Example (b):

a medical puncture drainage device comprises a puncture part, a drainage part and a detection control part;

the puncture part comprises a puncture needle 11, a fixed rod 12 and a fixed seat 13; the puncture needle 11 is connected with the fixed seat 13, and the fixed rod 12 can penetrate through the fixed seat 13 and be inserted into the puncture needle 11;

the drainage part comprises a drainage fixer 14, a drainage bag 15 and an injector 16, the drainage fixer 14 is provided with a rotary switch 17, and the rotary switch 17 is used for communicating the drainage bag 15 with the puncture needle 11 or the drainage bag 15 with the injector 16;

the detection control part comprises a detection controller 18 and a computer 19, an optical fiber bundle is arranged in the puncture needle 11 and is connected with the detection controller 18, and the detection controller 18 is connected with the computer 19; providing a light source and a light detector within detection controller 18, the light source being capable of providing incident light to the fiber optic bundle; the optical fiber bundle comprises an incident optical fiber and a reflecting optical fiber, and the incident light is transmitted to the reflector at the head of the puncture needle 11 through the incident optical fiber, then reflected into the reflecting optical fiber and finally transmitted to the light detector; a cavity is arranged among the incident optical fiber, the reflecting optical fiber and the reflector, and the liquid flowing state of the head of the puncture needle 11 can be judged according to the intensity of light reflected in the reflecting optical fiber; the computer 19 controls the drainage intensity of the drainage portion, i.e., the intensity of the negative pressure in the drainage bag 15, based on the collected light intensity of the photodetector.

The puncture needle 11 is a soft needle and comprises a soft needle outer tube 20, an optical fiber tube 21 and a needle head part 22, wherein the soft needle outer tube 20 is made of a silica gel material, and the diameter of the soft needle outer tube is the same as that of the needle head part 22;

the optical fiber tube 21 is arranged in the soft needle outer tube 20 and is arranged close to the soft needle outer tube 20, the optical fiber tube 21 is composed of optical fiber bundles, and the interior of the optical fiber tube is hollow;

the needle head part 22 comprises a sharp point and is made of metal material, the needle head part 22 is connected to one end of the soft needle outer tube 20, and the needle head part 22 is of a solid structure; an opening 23 and a cavity 24 are arranged at the joint of the needle head part 22 and the soft needle outer tube 20, so that the drained liquid can enter the opening and flow into the fiber tube 21;

the cavity 24 of the tip section 22 is a reflecting surface, which can reflect the light incident on the optical fiber to the reflecting optical fiber, and when there is liquid in the cavity, the light received by the reflecting optical fiber changes due to the change of the refractive index;

the fixed seat 13 is connected with the other end of the soft needle outer tube 20, the optical fiber tube 21 is dispersed into single optical fibers and penetrates through the outer wall of the fixed seat 13 to be connected to the detection control part, and liquid in the optical fiber tube 21 flows into the fixed seat 13; the other end of the fixed seat 13 is provided with a connector which can be connected with a drainage fixer 14;

the fixing rod 12 can be inserted into the optical fiber tube 21 from the hole of the connector and reach the tip portion 22 of the puncture needle 11, so as to provide rigidity to the puncture needle 11 when the puncture is performed.

One end of the drainage fixer 14 can be connected to the connecting head of the fixed seat 13 under the condition that the fixed rod 12 is pulled out, so that the liquid in the fixed seat 13 enters the drainage fixer 14; a syringe 16 is connected to the other end of the drainage holder 14, and a drainage bag 15 is connected to the side of the drainage holder 14;

a rotary switch 17 is arranged on the drainage tube, the diameter of the rotary switch 17 is the same as that of the drainage fixer 14, and the liquid in the fixed seat 13 can enter the drainage bag 15 by rotating the rotary switch 17 to a first position; rotation of the rotary switch 17 to the second position causes fluid in the drainage bag 15 to enter the syringe 16.

The drainage bag 15 is provided with a negative pressure controller, and the computer 19 is connected with the drainage bag 15 to control the negative pressure of the negative pressure controller.

The structure of the rotary switch is as follows:

the rotary switch is composed of a circular sheet with a hole, the circular sheet can coaxially rotate with the drainage fixer, and the hole on the circular sheet is connected to the drainage bag; two pipelines which are not coaxial are arranged in the drainage controller, the first pipeline is connected to the injector, and the first pipeline is connected to the fixed seat; the circular sheet is arranged between the two pipelines, and when the circular sheet rotates, the hole on the circular sheet can rotate to be coaxial with the first pipeline, so that the connection between the first pipeline and the drainage bag is opened; or the hole can be rotated to be coaxial with the second pipeline, so that the connection between the second pipeline and the drainage bag is opened;

when drainage is performed, the computer controls according to the light intensity detected by the light detector, if the light intensity is stable and the liquid in the drainage bag flows into the drainage bag stably, the puncture position is indicated to have more liquid, and drainage can be continued; if the light intensity is very severely changed, the liquid supply at the puncture position is insufficient, and the negative pressure of the drainage bag is reduced or directly closed; the process can be operated manually by observing the light intensity or directly set into an electronic program for automation.

When the drainage is stopped, the rotary switch is rotated so as to close the drainage, and then the liquid in the drainage bag is pumped out by the syringe.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A medical puncture drainage device comprises a puncture part, a drainage part and a detection control part; the method is characterized in that:

the puncture part comprises a puncture needle (11), a fixed rod (12) and a fixed seat (13); the puncture needle (11) is connected with the fixed seat (13), and the fixed rod (12) can penetrate through the fixed seat (13) and be inserted into the puncture needle (11);

the drainage part comprises a drainage fixer (14), a drainage bag (15) and an injector (16), the drainage fixer (14) is provided with a rotary switch (17), and the rotary switch (17) is used for communicating the drainage bag (15) with the puncture needle (11) or the drainage bag (15) with the injector (16);

the detection control part comprises a detection controller (18) and a computer (19), an optical fiber bundle is arranged in the puncture needle (11), the optical fiber bundle is connected with the detection controller (18), and the detection controller (18) is connected with the computer (19); providing a light source and a light detector within a detection controller (18), the light source being capable of providing incident light to the fiber optic bundle; the optical fiber bundle comprises an incident optical fiber and a reflecting optical fiber, and the incident light is transmitted to a reflector at the head of the puncture needle (11) through the incident optical fiber, then reflected into the reflecting optical fiber and finally transmitted to the light detector; a cavity is arranged among the incident optical fiber, the reflecting optical fiber and the reflector, and the liquid flowing state of the head of the puncture needle (11) can be judged according to the intensity of light reflected in the reflecting optical fiber; the computer (19) controls the drainage intensity of the drainage part, namely the negative pressure intensity in the drainage bag (15), according to the collected light intensity of the light detector.

2. The medical puncture drainage apparatus according to claim 1, wherein:

the puncture needle (11) is a soft needle and comprises a soft needle outer tube (20), an optical fiber tube (21) and a needle head part (22), wherein the soft needle outer tube (20) is made of silica gel material, and the diameter of the soft needle outer tube is the same as that of the needle head part (22);

the optical fiber tube (21) is arranged in the soft needle outer tube (20) and is arranged close to the soft needle outer tube (20), the optical fiber tube (21) is composed of optical fiber bundles, and the interior of the optical fiber tube is hollow;

the needle head part (22) comprises a sharp point and is made of metal materials, the needle head part (22) is connected to one end of the soft needle outer tube (20), and the needle head part (22) is of a solid structure; an opening (23) and a cavity (24) are arranged at the joint of the needle head part (22) and the soft needle outer tube (20), so that the drained liquid can enter the opening and flow into the optical fiber tube (21);

the cavity (24) of the needle head part (22) is internally provided with a reflecting surface which can reflect the light of the incident optical fiber to the reflecting optical fiber, and when liquid exists in the cavity, the light received by the reflecting optical fiber is changed due to the change of the refractive index;

the fixed seat (13) is connected with the other end of the soft needle outer tube (20), the optical fiber tube (21) is dispersed into a single optical fiber and penetrates through the outer wall of the fixed seat (13) to be connected to the detection control part, and liquid in the optical fiber tube (21) flows into the fixed seat (13); the other end of the fixed seat (13) is provided with a connector which can be connected with a drainage fixer (14);

the fixing rod (12) can be inserted into the optical fiber tube (21) from the hole of the connector and reaches the needle head part (22) of the puncture needle (11), so that the rigidity is provided for the puncture needle (11) when the puncture is carried out.

3. The medical puncture drainage apparatus according to claim 2, wherein:

one end of the drainage fixer (14) can be connected into the connecting head of the fixed seat (13) under the condition that the fixed rod (12) is pulled out, so that the liquid in the fixed seat (13) enters the drainage fixer (14); the syringe (16) is connected to the other end of the drainage fixer (14), and the drainage bag (15) is connected to the side surface of the drainage fixer (14);

a rotary switch (17) is arranged on the drainage bag, the diameter of the rotary switch (17) is the same as that of the drainage fixer (14), and the liquid in the fixed seat (13) can enter the drainage bag (15) by rotating the rotary switch (17) to a first position; rotation of the rotary switch (17) to the second position causes fluid in the drainage bag (15) to enter the syringe (16).

4. The medical puncture drainage apparatus according to claim 3, wherein:

the drainage bag (15) is provided with a negative pressure controller, and the computer (19) is connected with the drainage bag (15) to control the negative pressure of the negative pressure controller.