CN217331661U

CN217331661U - Specimen collector is cultivateed to central venous catheter point

Info

Publication number: CN217331661U
Application number: CN202220935473.0U
Authority: CN
Inventors: 黄晓鸣; 闾涵; 张霞; 唐茂婷
Original assignee: West China Second University Hospital of Sichuan University
Current assignee: West China Second University Hospital of Sichuan University
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-30
Anticipated expiration: 2032-04-21

Abstract

The utility model relates to a specimen collector technical field, especially a specimen collector is cultivateed to central venous catheter pointed end are cultivateed to pointed end. The collecting bottle comprises a collecting bottle and a bottle cap which are detachably connected, wherein a partition plate is arranged in the bottle cap and divides the bottle cap into an upper area and a lower area, the upper area is a shearing area, and the lower area is a connecting area; the top of the bottle cap is provided with a first through hole, the partition plate is provided with a second through hole, and the circle centers of the first through hole and the second through hole are overlapped under orthographic projection; the cutting area is further provided with a cutting assembly, and the cutting assembly is connected with the bottle cap in a sliding mode. By designing the bottle cap part of the collector into a design with a cutting function, the cut catheter tip can be conveniently collected in the bottle, and the whole process is safe and quick. The safety of operators is greatly guaranteed, and the sterility of the tip of the catheter can be guaranteed. The wrong judgment of the experimental culture result caused by the fact that the catheter is exposed in the air for a long time is avoided.

Description

Specimen collector is cultivateed to central venous catheter point

Technical Field

The utility model relates to a specimen collector technical field, especially a specimen collector is cultivateed to central venous catheter pointed end are cultivateed to pointed end.

Background

The Central Venous Catheter (CVC) and the peripherally inserted central venous Catheter (PICC) are venous passages commonly used in clinic, Catheter-Related Blood flow Infection (CRBSI) is a common complication of the central venous Catheter, and refers to bacteremia or mycosis of a patient with an intravascular Catheter or in a patient who pulls out the intravascular Catheter for 48h, and is accompanied by Infection manifestations such as fever, shiver or hypotension, and other clear Infection sources in the intravascular Catheter. When considering the catheter-related blood stream infection of a catheterized patient, the central venous catheter arranged by the patient needs to be pulled out firstly, and the catheter tip is taken and reserved as a specimen for bacterial culture. So as to clarify what bacterial infection causes and further have directional medication.

At present, no special catheter tip culture specimen collector exists clinically, and the common mode is to cut off the catheter tip by using sterile scissors or a blade and put the catheter tip into the sterile specimen collector for inspection. The scissors need to be disinfected in the whole process, the process is complicated, the disposable sterile blade is unsafe to use, and the user is often cut, so that the occupational exposure risk is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: aiming at the technical defects that the collection process of the catheter tip is more complicated and the occupational exposure risk of an operator is increased due to the fact that the problem of lack of a special catheter excision collection device in the prior art is solved, the central venous catheter tip culture specimen collector is provided.

In order to realize the purpose, the utility model discloses a technical scheme be:

a central venous catheter tip culture specimen collector comprises a collecting bottle and a bottle cap which are detachably connected, wherein a partition plate is arranged in the bottle cap and divides the bottle cap into an upper area and a lower area, the upper area is a shearing area, and the lower area is a connecting area; the top of the bottle cap is provided with a first through hole, the partition plate is provided with a second through hole, and the circle centers of the first through hole and the second through hole are overlapped under orthographic projection; the shearing area is further provided with a cutting assembly, and the cutting assembly is connected with the bottle cap in a sliding mode.

The technical scheme of the utility model provides a collect and cut in pipe point of an organic whole and cultivate sample collector, through designing the bottle lid part of collector into the design that has the cutting function, can be convenient collect the pipe point of cutting in sample collector, wherein, be provided with the divided division board between joining region and the shearing zone, can further guarantee in the collection operation process, the aseptic nature of receiving flask; meanwhile, the cutting device can be used for being matched with a cutting assembly, so that the cutting effect is better; the sliding structural design can realize the quick cutting operation of the tip end of the catheter in a more labor-saving operation mode, and the whole process is safe, simple and quick. The very big assurance operating personnel's safety, and can guarantee the aseptic nature of pipe point end, avoided the pipe to expose for a long time in the air, the invasion of other pollution sources that cause, and then the accurate judgement of influence experiment culture result.

As the preferred technical scheme of the utility model, first through-hole with be provided with the stand pipe between the second through-hole, the one end of stand pipe with the inside fixed connection in bottle lid top, another tip of stand pipe with one section clearance has between the second through-hole. The in-process of the sample collector is cultivateed in being convenient for to stretch into to the setting of stand pipe on the one hand, lets in the receiving flask space below the second through hole along the stand pipe, and on the other hand, in order to facilitate the cutting of cutting assembly, the stand pipe plays certain supporting role, can make ductus venosus keep vertical downwards, can not shift and rock.

As a preferred embodiment of the present invention, the inner diameter of the first through hole is larger than the inner diameter of the second through hole, and the inner diameter of the second through hole is adapted to the outer diameter of the intravenous catheter.

As the utility model discloses a preferred scheme, cutting assembly includes drive division and cutting blade, the drive division include the catch bar and with catch bar sliding fit's spacing groove, the spacing groove is in the level sets up in the shearing zone, the catch bar is vertical set up in the spacing groove, the first end of catch bar stretches out to the spacing groove below, first end and cutting blade fixed connection, the catch bar can along the reciprocating sliding of horizontal direction of spacing groove.

As the utility model discloses a preferred technical scheme, the second end of catch bar stretches out to the spacing groove top, the second end is provided with the push pedal. When cutting, slide control of the cutting blade is realized by controlling the push rod to slide in the limit groove through the push plate.

As the preferable technical proposal of the utility model, the division plate is obliquely arranged, and the range of the inclination angle alpha is 10 degrees to 15 degrees.

As a preferred technical solution of the present invention, the cutting blade is disposed in an inclined manner, the inclined direction of the cutting blade is identical to the inclined direction of the partition plate, and the included angle β between the cutting blade and the partition plate is in a range of 15 ° to 30 °. The division board that the slope set up can make things convenient for cutting blade's smooth promotion more, and cutting blade slope sets up, and keeps certain contained angle with the division board, is that the pipe is more laborsaving at the in-process of cutting, and simultaneously, the in-process cutting effect that promotes the cutting of blade is better.

As an optimal technical scheme of the utility model, the spacing inslot still is provided with reset spring, reset spring sets up between catch bar and spacing groove. In the process of pushing the cutting blade to cut the catheter, the spring is in a compressed state, and after cutting is completed, the pushing block retracts to the original position under the acting force of the spring and leaves the position of the second through hole.

As an optimal technical scheme of the utility model, still be provided with rotating barrier in the shearing area, rotating barrier with the lateral wall swing joint of bottle lid. Rotating barrier has two states, opens and closes, and initial condition and sample are collected and are accomplished the back, rotating barrier is in the closed condition, at this moment, rotating barrier covers on the second through hole is square, the clearance between stand pipe and the second through hole promptly, the sample collecting in-process, rotating barrier is in the open condition, and rotating barrier is located the outer position of following of second through hole this moment.

As the preferred technical proposal of the utility model, the inner wall of the bottle cap positioned in the connecting area is provided with an internal thread, and the periphery of the bottle mouth of the collecting bottle is provided with an external thread; the bottle cap is in threaded connection with the collecting bottle.

As the preferable technical proposal of the utility model, the height of the connecting area is 0.8-1 cm. The height of the connecting area is set to be in the range, the cutting length of the central venous catheter is approximately 1cm, the height of the connecting area is designed to be 0.8-1cm in order to control the cutting length to be about 1cm, and therefore when the medical staff operates, the tip of the central venous catheter extending into the collecting bottle can be visually observed to just leak out of the head, and the push plate can be operated to cut.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the technical scheme of the utility model provides a collect and cut in the catheter tip of an organic whole and cultivate sample collector, through designing the bottle lid part of collector into the design that has the cutting function, can be convenient collect the catheter tip of cutting in sample collector, wherein, be provided with the divided division board between joining region and the shearing zone, can further guarantee in the collecting operation process, the aseptic nature of receiving flask; meanwhile, the cutting device can be used for being matched with a cutting assembly, so that the cutting effect is better; the sliding structural design can realize the quick cutting operation of the tip end of the catheter in a more labor-saving operation mode, and the whole process is safe, simple and quick. The very big assurance operating personnel's safety, and can guarantee the aseptic nature of pipe point end, avoided the pipe to expose for a long time in the air, the invasion of other pollution sources that cause, and then the accurate judgement of influence experiment culture result.

2. The cutting mode adopts the promotion formula, has certain angle between cutting blade and the division board, promotes the in-process of push pedal cutting central venous catheter, and the blade promotes along the decurrent slope of division board for the pipe cutting process is very laborsaving, and the cutting is sharper, and the process is finished in one go. After the cutting is finished, the reset spring in the limiting groove restores the push rod to the original position. The rotating baffle plate is not influenced to close the second through hole.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic cross-sectional view of the bottle cap of the present invention;

fig. 4 is a schematic structural view of the bottle cap of the present invention cooperating with an intravenous catheter;

FIG. 5 is a schematic cross-sectional view of the cutting assembly of the present invention;

icon: 100-venous catheters;

1-collecting bottle; 2-bottle cap; 21-shear zone, 22-connection zone, 3-divider plate; 4-a first through hole, 5-a second through hole, 6-a guide tube, 7-a cutting blade, 8-a push rod, 81-a first end part, 82-a second end part, 9-a limiting groove, 10-a push plate, 11-a return spring, 12-a rotating baffle and 121-a moving block.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

A central venous catheter tip culture specimen collector comprises a collecting bottle 1 and a bottle cap 2 which are detachably connected, wherein a partition plate 3 is arranged in the bottle cap 2, the bottle cap 2 is divided into an upper area and a lower area by the partition plate 3, the upper area is a shearing area 21, and the lower area is a connecting area 22; the inner wall of the bottle cap positioned in the connecting area 22 is provided with an internal thread, and the periphery of the bottle mouth of the collecting bottle 1 is provided with an external thread; the bottle cap 2 is in threaded connection with the collecting bottle 1; the height of the attachment zone 22 is 1 cm.

A first through hole 4 is formed in the top of the bottle cap 2, a second through hole 5 is formed in the partition plate 3, and the circle centers of the first through hole 4 and the second through hole 5 are overlapped under the orthographic projection; specifically, a guide tube 6 is arranged between the first through hole 4 and the second through hole 5, one end of the guide tube 6 is fixedly connected with the inside of the top of the bottle cap 2, and a gap is formed between the other end of the guide tube 6 and the second through hole 5. The setting up of stand pipe 6 is the in-process that is convenient for stretch into the cultivation sample collector on the one hand, lets in the space of receiving flask 1 below the second through hole 5 along stand pipe 6, and on the other hand, for the convenience of the cutting of cutting assembly, stand pipe 6 plays certain supporting role, can make ductus venosus 100 keep vertical downwards, can not shift and rock.

More specifically, the inner diameter of the first through hole 4 is larger than the inner diameter of the second through hole 5, and the inner diameter of the second through hole 5 is adapted to the outer diameter of the intravenous catheter 100. In this embodiment, the diameter of the first through hole 4 is 5-7 mm; the diameter of the second through hole 5 is 3-4 mm. The guide pipe 6 is a pipe body with gradually changed diameter, the diameter of the upper end part is consistent with that of the first through hole 4, and the diameter of the upper end part is consistent with that of the second through hole 5.

The cutting area 21 is further provided with a cutting assembly, and the cutting assembly is in sliding connection with the bottle cap 2. Specifically, the cutting assembly includes drive division and cutting blade 7, the drive division include catch bar 8 and with catch bar 8 sliding fit's spacing groove 9, spacing groove 9 is in the level sets up in shear zone 21, catch bar 8 vertical set up in spacing groove 9, the first end 81 of catch bar 8 stretches out to spacing groove 9 below, first end 81 and cutting blade 7 fixed connection, catch bar 8 can follow the reciprocating sliding of the horizontal direction of spacing groove 9.

The second end 82 of the push rod 8 extends out of the upper part of the limit groove 9, and the second end 82 is provided with a push plate 10. When cutting is carried out, the push plate 10 controls the push rod 8 to slide in the limit groove 9 so as to realize the sliding control of the cutting blade 7. More specifically, a return spring 11 is further arranged in the limiting groove 9, and the return spring 11 is arranged between the push rod 8 and the limiting groove 9. In the process of pushing the cutting blade 7 to cut the catheter, the return spring 11 is in a compressed state, and after cutting is completed, the push rod 8 retracts to the original position under the action of the return spring 11 and leaves the position of the second through hole 5.

In the scheme of this embodiment, the partition plate 3 is obliquely arranged, and the range of the inclination angle α is 15 °; the cutting blade 7 is also arranged in an inclined mode, the inclined direction of the cutting blade 7 is consistent with the inclined direction of the partition plate 3, and the included angle beta between the cutting blade 7 and the partition plate 3 is 20 degrees. Division board 3 that the slope set up can more make things convenient for cutting blade 7's smooth promotion, and cutting blade 7 slope sets up, and keeps certain contained angle with division board 3, is that the pipe is more laborsaving at the in-process of cutting, and simultaneously, the in-process cutting effect that promotes cutting blade 7 cutting is better.

A rotary baffle 12 is further arranged in the shearing area 21, and the rotary baffle 12 is movably connected with the side wall of the bottle cap 2. Rotating barrier 12 has two states, opens and closes, and initial condition and sample collection completion back, rotating barrier 12 is in the closed condition, and at this moment, rotating barrier 12 covers on second through hole 5 is square, the clearance between stand pipe 6 and the second through hole 5 promptly, and in the sample collection process, rotating barrier 12 is in the open condition, and rotating barrier 12 is located the outer position of following of second through hole 5 this moment. The end part of the rotating baffle plate 12 connected with the side wall of the bottle cap is provided with a moving block 121, and the moving block 121 is connected with the side wall in a sliding mode.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A central venous catheter tip culture specimen collector comprises a collecting bottle (1) and a bottle cap (2) which are detachably connected, and is characterized in that a partition plate (3) is arranged in the bottle cap (2), the bottle cap (2) is divided into an upper area and a lower area by the partition plate (3), the upper area is a shearing area (21), and the lower area is a connecting area (22); the top of the bottle cap (2) is provided with a first through hole (4), the partition plate (3) is provided with a second through hole (5), and the circle centers of the first through hole (4) and the second through hole (5) are overlapped under orthographic projection; the cutting area (21) is further provided with a cutting assembly, and the cutting assembly is connected with the bottle cap (2) in a sliding mode.

2. The central venous catheter tip culture specimen collector as claimed in claim 1, characterized in that a guide tube (6) is arranged between the first through hole (4) and the second through hole (5), one end of the guide tube (6) is fixedly connected with the inside of the top of the bottle cap (2), and a gap is arranged between the other end of the guide tube (6) and the second through hole (5).

3. The central venous catheter tip culture specimen collector as claimed in claim 2, characterized in that the inner diameter of the first through hole (4) is larger than the inner diameter of the second through hole (5), and the inner diameter of the second through hole (5) is adapted to the outer diameter of the venous catheter.

4. The central venous catheter tip culture specimen collector of claim 1, characterized in that the cutting assembly comprises a driving part and a cutting blade (7), the driving part comprises a push rod (8) and a limit groove (9) matched with the push rod (8) in a sliding manner, the limit groove (9) is horizontally arranged in the cutting area (21), the push rod (8) is vertically arranged in the limit groove (9), a first end part (81) of the push rod (8) extends out below the limit groove (9), the first end part (81) is fixedly connected with the cutting blade (7), and the push rod (8) can slide back and forth along the horizontal direction of the limit groove (9).

5. Central venous catheter tip culture specimen collector as claimed in claim 4, characterized in that the second end (82) of the push rod (8) protrudes above the limiting groove (9), the second end (82) being provided with a push plate (10).

6. The central venous catheter tip culture specimen collector as claimed in claim 5, characterized in that the divider plate (3) and the cutting blade (7) are both obliquely arranged; the inclination angle of the partition plate (3) is alpha, and the alpha ranges from 10 degrees to 15 degrees; the inclination direction of the cutting blade (7) is consistent with that of the separation plate (3), and the included angle between the cutting blade (7) and the separation plate (3) is beta, wherein the beta ranges from 15 degrees to 30 degrees.

7. The central venous catheter tip culture specimen collector as claimed in claim 5, characterized in that a return spring (11) is further arranged in the limiting groove (9), and the return spring (11) is arranged between the push rod (8) and the limiting groove (9).

8. The central venous catheter tip culture specimen collector of claim 1, characterized in that a rotating baffle (12) is further arranged in the cutting area (21), and the rotating baffle (12) is movably connected with the side wall of the bottle cap (2).

9. The central venous catheter tip culture specimen collector is characterized in that an inner thread is arranged on the inner wall of a bottle cap of the connecting area (22), and an outer thread is arranged on the periphery of a bottle opening of the collecting bottle (1); the bottle cap (2) is in threaded connection with the collecting bottle (1).

10. Central venous catheter tip culture specimen collector as claimed in claim 1, characterized in that the height of the connection area (22) is 0.8-1 cm.