CN210071262U

CN210071262U - Keep somewhere needle pipe gas device that leaks hunting

Info

Publication number: CN210071262U
Application number: CN201920848000.5U
Authority: CN
Inventors: 许云龙; 潘晔
Original assignee: Jiangsu Yuyue Medical Equipment and Supply Co Ltd; Jiangsu Yuyue Information System Co Ltd; Suzhou Yuyue Medical Technology Co Ltd; Suzhou Medical Appliance Factory
Current assignee: Jiangsu Yuyue Medical Equipment and Supply Co Ltd; Jiangsu Yuyue Information System Co Ltd; Suzhou Yuyue Medical Technology Co Ltd; Suzhou Medical Appliance Factory
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-02-14
Anticipated expiration: 2029-06-06

Abstract

An indwelling needle catheter gas leak detection device comprises a detector and at least one gas leak detection structure communicated with the detector; each air leakage detection structure comprises two sealing heads used for sealing two ports of the indwelling needle catheter seat; each air leakage detection structure also comprises a pair of clamping blocks, so that the head of the indwelling needle catheter is clamped and sealed; the sealing head is provided with a detection hole which is communicated with an external air source through an air pipe; the device detects the pressure change of the filled gas in real time, thereby intuitively reflecting the sealing performance of the product.

Description

Keep somewhere needle pipe gas device that leaks hunting

Technical Field

The utility model relates to a detection device for medical instruments, in particular to an air leakage detection device for an indwelling needle catheter.

Background

For medical equipment products, particularly medical equipment acting on human bodies, the control of the secondary product rate is quite strict, and according to some requirements and laws and regulations related to the production of the medical equipment, medical equipment companies are required to strictly carry out one hundred percent of safety detection and quality control when producing important medical equipment parts.

The indwelling needle is a connector which is detained in a human body when infusion is carried out, and the indwelling needle generally comprises a catheter and a catheter seat which are assembled in a sealing way. Wherein, the catheter is kept in the human body during transfusion, and the catheter seat is used for connecting a liquid pipeline of a transfusion bottle/bag.

The indwelling needle is positioned on a human body, so the requirement on the safety of the indwelling needle is extremely strict, if the indwelling needle has a gas leakage detection phenomenon (mainly at the joint of the catheter and the catheter seat), the gas pressure balance at two ends of the catheter can be influenced, and the serious condition can cause large-area swelling of the skin at the infusion part, thereby generating the result which is difficult to estimate. How to detect the gas leakage of the indwelling needle becomes an important proposition which cannot be avoided in the production unit of the indwelling needle.

Disclosure of Invention

The utility model provides a keep somewhere needle catheter gas device that leaks hunting, the device can effectually will keep somewhere the connecting channel on the needle body airtight, through the detection hole on the device to keeping somewhere the interior input gas of needle catheter, come the change of real-time monitoring atmospheric pressure, surpass predetermined interval when the scope of the value of atmospheric pressure, then mean that should keep somewhere the needle product and have gas phenomenon that leaks hunting, prevent that the wastrel from going to the market.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an indwelling needle catheter gas leak detection device comprises a detector and at least one gas leak detection structure communicated with the detector;

each gas leakage detection structure comprises two sealing head parts, and the two sealing head parts are driven by a first driving mechanism to do linear reciprocating motion towards or away from the port of the catheter seat respectively so as to seal the two ports of the catheter seat of the indwelling needle;

each gas leakage detection structure also comprises a pair of clamping blocks, and the pair of clamping blocks are driven by a second driving mechanism to perform opening and closing actions so as to clamp and seal the head of the indwelling needle catheter;

the two sealing heads are matched with the pair of clamping blocks together to seal an internal air chamber of the indwelling needle;

at least one sealing head is provided with a detection hole which is communicated with a detector through an air pipe, and the sealing head is communicated with the inside of the catheter seat to form the communication of the detection hole and an internal air chamber of the indwelling needle.

The relevant content in the above technical solution is explained as follows:

1. in the above scheme, the two ports refer to two ports for accessing the liquid medicine, one of the two ports is a main liquid medicine access port called as a catheter hub large port, and the other large port of the catheter hub is arranged on the side part for facilitating the access of the other liquid medicine by an external extension line, and the port on the side part becomes a Y-shaped port of the catheter hub.

2. In the above scheme, the sealing of the sealing head to the two ports means that the outer periphery or the inner periphery of the port connected with the liquid medicine is sealed by air leakage, but the opening of the whole port is not completely sealed, so that the purpose of preventing the improper leakage of gas formed by gaps at the interface of the port and the external sealing head during the gas detection leakage detection from influencing the detection effect is achieved.

3. In the above scheme, the second driving mechanism is connected with the cylinder to acquire kinetic energy to perform opening and closing actions, namely, displacement in the opposite directions and displacement in the opposite directions, so that the effects of clamping and loosening the needle point of the catheter base are achieved.

The utility model discloses theory of operation and advantage as follows: the utility model discloses a pipe seat end cap and needle point sealing clamp will be whole keep somewhere the needle product and be in theoretical encapsulated situation, introduce the air supply of outside through trachea and inspection hole, and the rethread is to the detection of keeping somewhere the whole atmospheric pressure of needle product to the gas of product is surveyed to the change of atmospheric pressure and is leaked the state, can obtain a directly perceived and reliable conclusion.

Drawings

FIG. 1 is a schematic view of the device of the present invention with a positioning seat;

FIG. 2 is a schematic view of the positioning seat for dismounting the device of the present invention;

figure 3 is the utility model discloses a gas leak detection structure.

In the above drawings: 1. a detector; 2. an air tube; 3. a sealing head; 4. a first drive mechanism; 5. a detection hole; 6. a clamping portion; 7. positioning seats; 8. a catheter hub; 9. a conduit.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): referring to the attached drawings 1-3, an air leakage detection device of an indwelling needle catheter 9 comprises a detection station, wherein the detection station comprises a detector 1 and four air leakage detection structures communicated with the detector 1.

A positioning seat 7 is arranged on a device in a form of a bracket in the air leakage detection device, the positioning seat 7 corresponds to the working parts of all stations one by one, and the positioning seat 7 is used for fixing the remaining needle and limiting the freedom degree of the remaining needle during air leakage detection.

In actual mill, the device can install additional on the assembly line, and positioning seat 7 can install additional on rotating the platform, through the step-by-step rotation of rotating the platform, comes the efficient detection of leaking hunting of carrying on.

Each gas leakage detection structure comprises two sealing head parts 3, the two sealing head parts 3 are driven by a first driving mechanism 4 to do linear reciprocating motion towards/away from the port of the catheter seat 8 respectively, and then the two ports of the indwelling needle catheter seat 8 are sealed; the two sealing heads 3 are matched with the pair of clamping blocks 6 together to seal an internal air chamber of the indwelling needle;

the two ports refer to the two ports for accessing the liquid medicine arranged on the catheter seat 8 of the indwelling needle, one is a main liquid medicine access port which is called as a large port of the catheter seat, the other port of the catheter seat is arranged on the side part for externally connecting an extension line to facilitate the access of the other liquid medicine, and the port on the side part becomes a Y-shaped port of the catheter seat.

The sealing refers to sealing the outer periphery or the inner periphery of the port for accessing the liquid medicine by air leakage, but not completely sealing the opening of the whole port, and the purpose of the sealing is to prevent the improper leakage of gas formed by a gap at the interface of the port and the external sealing head part from influencing the detection effect during the gas leakage detection.

Each gas leakage detection structure also comprises a pair of clamping blocks 6, and the pair of clamping blocks 6 are driven by a second driving mechanism to open and close so as to clamp and seal the head of an indwelling needle catheter 9; the clamping part on the indwelling needle can be cut off by the subsequent process, so that the problem of deformation of the clamping part after clamping is not needed to be worried about.

In addition, the opposite surface of the clamping part can be made of materials which are similar to rubber materials, have low hardness and certain softness.

The sealed head part 3 is provided with a detection hole 5, the detection hole 5 can be selectively arranged on the sealed head part 3 at the large port of the catheter seat 8 or on the sealed head part 3 at the Y-shaped port of the catheter seat, and the detection hole 5 is communicated with the detector 1 through the air pipe 2; the detector 1 is internally provided with an air suction device which can introduce an external air source, and the air source is filled into a catheter 9 of the remaining needle through an air pipe 2 to detect the air leakage of the product.

Through presetting test pressure and time of giving gas in the detector, resetting the allowable value of leakage, comparing the preset value with the value detected by the detector in real time, when the preset value is exceeded or is lower than the preset value, indicating that the product has flaws, finding defective products in time and preventing gas from entering market circulation.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an it leaks hunting device to keep somewhere needle pipe gas which characterized in that: the gas leakage detection device comprises a detector (1) and at least one gas leakage detection structure communicated with the detector (1);

each gas leakage detection structure comprises two sealing head parts (3), the two sealing head parts (3) are driven by a first driving mechanism (4) to do linear reciprocating motion towards or away from the port of the catheter seat (8) respectively, and then two ports of the catheter seat (8) of the indwelling needle are sealed;

each gas leakage detection structure also comprises a pair of clamping blocks (6), and the pair of clamping blocks (6) are driven by a second driving mechanism to open and close so as to clamp and seal the head of the indwelling needle catheter (9);

the two sealing heads (3) are matched with the pair of clamping blocks (6) together to seal an internal air chamber of the indwelling needle;

at least one sealing head part (3) is provided with a detection hole (5), the detection hole (5) is communicated with the detector (1) through an air pipe (2), and the sealing head part (3) is communicated with the inside of the catheter seat (8) to form the communication of the detection hole (5) and an internal air chamber of the indwelling needle.

2. The indwelling needle catheter air leak detection device of claim 1, wherein: the detector (1) is provided with a display device for displaying the measured air pressure value or/and the air pressure change value.

3. The indwelling needle catheter air leak detection device of claim 1, wherein: the detector (1) is provided with an air suction device which can introduce an external air source.

4. The indwelling needle catheter air leak detection device of claim 1, wherein: the opposite surfaces of the clamping blocks are made of rubber.