CN213284848U

CN213284848U - Central venous catheter tube sealing device

Info

Publication number: CN213284848U
Application number: CN202021422552.9U
Authority: CN
Inventors: 李蕊; 姜瑶
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-05-28
Anticipated expiration: 2030-07-17

Abstract

The utility model provides a central venous catheter seals pipe device relates to medical auxiliary assembly, has solved the technical problem that has syringe and venous catheter joint strength to hang down among the prior art. This central venous catheter seals pipe device includes: an intravenous catheter syringe, a connecting tube and a connector; the injection port, the connecting pipe and the connector of the intravenous catheter injector are in threaded connection, the connector is tubular, a connecting plug is arranged at one end of the connector close to the intravenous catheter, the intravenous catheter is sleeved outside the connecting plug, and the intravenous catheter is in interference fit with the connecting plug; the connecting plug is also externally provided with a clamping device for increasing the positive pressure between the venous catheter and the connecting plug. The utility model is used for strengthen the joint strength between syringe and the ductus venosus.

Description

Central venous catheter tube sealing device

Technical Field

The utility model belongs to the technical field of medical auxiliary assembly technique and specifically relates to a central venous catheter seals pipe device is related to.

Background

With the development of medical technology, the central venous catheter is more and more widely applied in clinic, but the accompanying pipeline care problem is increasingly prominent. The method is used for the treatment of the patients with central venous catheterization by timing catheter flushing or pulse type positive pressure catheter sealing when the treatment is finished so as to ensure the smooth pipeline, and is the most common nursing technical operation in clinic.

The traditional tube sealing method is to use a 10ML injector and 0.9% physiological saline 10ML, and pulse tube sealing. However, the joint of the top end of the 10ML syringe and the infusion joint is easy to be separated when the tube is sealed, so that the tube sealing liquid is sprayed outside and cannot play a good tube sealing role. This is particularly common with dual lumen PICC seals. Because two-chamber PICC will ensure that the pipeline is unobstructed, all need two-chamber pulse type pipe sealings simultaneously when infusion begins and infusion finishes. In the process of sealing the tube at the same time, the phenomenon that the joint of the injector and the pipeline is separated frequently occurs, so that the tube sealing liquid is sprayed on the body of a patient.

Disclosure of Invention

An object of the utility model is to provide a central venous catheter seals pipe device to there is the technical problem that syringe and venous catheter joint strength are low among the solution prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of central venous catheter seals pipe device, include: an intravenous catheter syringe, a connecting tube and a connector; an injection port of the intravenous catheter injector is provided with a first external thread, and one end of the connecting pipe is provided with a matched first internal thread; a second internal thread is arranged at the other end of the connecting pipe, and a matched second external thread is arranged at one end of the connector close to the intravenous catheter injector; the connector is tubular, a connecting plug is arranged at one end of the connector close to the venous catheter, the venous catheter is sleeved outside the connecting plug, and the venous catheter is in interference fit with the connecting plug; the connecting plug is also externally provided with a clamping device for increasing the positive pressure between the venous catheter and the connecting plug.

Preferably, the clamping means comprises a clamping bar and a clamping bolt; the number of the clamping strips is at least two, third external threads are arranged on the outer sides of the clamping strips, the extending direction of all the clamping strips is consistent with the extending direction of the connecting plug, and the clamping strips are uniformly distributed along the circumferential direction of the connecting plug; the clamping bolt is matched with the third external thread.

Preferably, the thickness of the clamping strip increases gradually in the length direction.

Preferably, one end of the clamping strip is fixedly connected with the connector.

Preferably, the thickness of the clamping bar at one end near the connector is less than the thickness at the distal end.

Preferably, the connector comprises a syringe connection sub-section and an intravenous catheter connection sub-section, removably connected therebetween, wherein the second external thread is provided at one end of the syringe connection sub-section and the connection plug is fixedly provided at one end of the intravenous catheter connection sub-section.

Preferably, a threaded connection is used between the syringe connection sub-section and the intravenous catheter connection sub-section.

Preferably, a fourth internal thread is arranged at one end of the syringe connecting subsection far away from the second external thread, and a matched fourth external thread is arranged at one end of the intravenous catheter connecting subsection far away from the connecting plug; the syringe is characterized in that a sealing insertion tube is further arranged on the syringe connecting part, one end of the sealing insertion tube is fixedly connected with the syringe connecting part, the central axis of the sealing insertion tube coincides with the central axis of the fourth internal thread, and the outer diameter of the sealing insertion tube is equal to the inner diameter of the syringe connecting part.

Preferably, the connector is further provided with a connecting sleeve which partially covers the syringe connecting branch and the venous catheter connecting branch.

Preferably, the central axis of the connecting sleeve is superposed with the central axis of the injector connecting subsection and is in sliding connection with the injector connecting subsection, and the end part of the injector connecting subsection is provided with a limiting block to prevent the connecting sleeve from falling off the injector connecting subsection; the connecting sleeve is in threaded connection with the venous catheter connecting branch.

The utility model provides a central venous catheter seals pipe device, include: an intravenous catheter syringe, a connecting tube and a connector; the injection end of the intravenous catheter injector is provided with threads, the threaded connection mode is more stable, and the connection part of the intravenous catheter is provided with a clamping device to prevent the intravenous catheter from falling off; to sum up this central ductus venosus seals a tub device that uses the novel center ductus venosus that provides, the effectual joint strength who improves between syringe and the ductus venosus.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a central venous catheter tube sealing device provided by the present invention.

FIG. 1 shows a connecting pipe; 2. a connector; 21. an injector connection subsection; 22. a venous catheter connection subsection; 23. sealing the cannula; 24. connecting sleeves; 25. a connecting plug; 26. a clamping device; 261. a clamping bar; 262. and clamping the bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a central venous catheter seals pipe device, include: an intravenous catheter syringe, a connecting tube 1 and a connector 2; an injection port of the intravenous catheter injector is provided with a first external thread, and one end of the connecting pipe 1 is provided with a matched first internal thread; the other end of the connecting pipe 1 is provided with a second internal thread, and one end of the connector 2 close to the intravenous catheter injector is provided with a matched second external thread; the connector 2 is tubular, one end of the connector 2 close to the venous catheter is provided with a connecting plug 25, the venous catheter is sleeved outside the connecting plug 25, and the venous catheter is in interference fit with the connecting plug 25; the connector plug 25 is provided with a clamping device 26 to increase the positive pressure between the intravenous catheter and the connector plug 25.

In the embodiment 1, the targeted syringe, namely the intravenous catheter syringe, is adopted for intravenous catheter injection, wherein the connecting pipe 1 and the connector 2 are both made of hard plastics, and the strength of threaded connection is guaranteed.

As an alternative embodiment of the present invention, the clamping device 26 includes a clamping bar 261 and a clamping bolt 262; the number of the clamping strips 261 is at least two, third external threads are arranged on the outer sides of the clamping strips 261, the extending direction of all the clamping strips 261 is consistent with the extending direction of the connecting plug 25, and the clamping strips are uniformly distributed along the circumferential direction of the connecting plug 25; the clamping bolt 262 mates with the third external thread. The clamping bolt 262 is adopted to clamp the clamping strip 261, so that the advantages that a, the clamping bolt 262 and the clamping strip 261 are in threaded connection, and axial sliding cannot occur; b. the clamping bolt 262 has high firmness and strong radial constraint force on the clamping strip 261; c. the installation and the disassembly of a user are convenient.

As an alternative embodiment of the present invention, the thickness of the clamping strip 261 is gradually increased in the length direction, and the size of the positive pressure applied by the clamping strip 261 can be adjusted by adjusting the position of the clamping bolt 262.

As an alternative embodiment of the present invention, the one end of the clamping strip 261 is fixedly connected to the connector 2, and the clamping strip 261 is installed by a user with limited convenience.

As an optional embodiment of the present invention, the thickness of the clamping strip 261 close to the one end of the connector 2 is smaller than the thickness of the distal end, and the clamping bolt 262 is reserved in the thinner one end of the clamping strip 261 (wherein the thinner one end of the clamping strip 261 is fixedly connected to the body of the connector 2) before installation, so as to prevent the clamping bolt 262 from being lost, and facilitate placement.

Embodiment 2, when the production of the intravenous catheter injector is inconvenient, a soft rubber tube can be used instead of the hard coupling tube 1, and in addition, a clamping device 26 is additionally provided with the outside of the soft rubber tube to clamp the soft rubber tube, wherein the clamping device 26 comprises at least two clamping bolts 262.

As an alternative embodiment of the present invention, the connector 2 comprises a syringe connection sub-section 21 and an intravenous catheter connection sub-section 22, which are detachably connected, wherein the second external thread is disposed at one end of the syringe connection sub-section 21, and the connection plug 25 is fixedly disposed at one end of the intravenous catheter connection sub-section 22; by adopting the connector 2 which is sectional type detachable, two parts of the connector 2 can be respectively connected with the injector and the intravenous catheter, so that the connector 2 can be connected, and the use of medical personnel is more convenient.

As an alternative embodiment of the present invention, a threaded connection is used between the syringe connection sub-section 21 and the intravenous catheter connection sub-section 22.

As an alternative embodiment of the present invention, the end of the syringe connection subsection 21 away from the second external thread is provided with a fourth internal thread, and the end of the intravenous catheter connection subsection 22 away from the connection plug 25 is provided with a matching fourth external thread; the syringe connecting branch 21 is further provided with a sealing insertion tube 23, one end of the sealing insertion tube 23 is fixedly connected with the syringe connecting branch 21, the central axis of the sealing insertion tube 23 is overlapped with the central axis of the fourth internal thread, and the outer diameter of the sealing insertion tube 23 is equal to the inner diameter of the syringe connecting branch.

As an alternative embodiment of the present invention, the connector 2 is further provided with a connecting sleeve 24, which partially covers the syringe connecting section 21 and the intravenous line connecting section 22.

Embodiment 3, the outside of the syringe connection branch 21 and the iv line connection branch 22 may be provided with external threads, and the connection sleeve 24 may be provided with internal threads matching with the two (the same or different types of external threads may be used for the syringe connection branch 21 and the iv line connection branch 22, the same external threads are used for the convenience of production and processing, and the different types of external threads are used for reducing the interference between the two during the installation process).

As an optional embodiment of the present invention, the central axis of the connecting sleeve 24 coincides with the central axis of the syringe connecting subsection 21, and the two are slidably connected, and the end of the syringe connecting subsection 21 is provided with a limiting block to prevent the connecting sleeve 24 from coming off the syringe connecting subsection 21; the connecting sleeve 24 is in threaded connection with the venous catheter connection subsection 22; the connecting sleeve 24 can freely rotate in the circumferential direction relative to the syringe connecting subsection 21, and when the syringe connecting subsection 21 and the intravenous catheter connecting subsection 22 are combined, the positions of the syringe connecting subsection 21 and the intravenous catheter connecting subsection 22 can be kept still, so that the mounting of medical staff is facilitated.

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

Claims

1. A central venous catheter tubing sealing device, comprising: an intravenous catheter syringe, a connecting tube and a connector;

an injection port of the intravenous catheter injector is provided with a first external thread, and one end of the connecting pipe is provided with a matched first internal thread; a second internal thread is arranged at the other end of the connecting pipe, and a matched second external thread is arranged at one end of the connector close to the intravenous catheter injector;

the connector is tubular, a connecting plug is arranged at one end of the connector close to the venous catheter, the venous catheter is sleeved outside the connecting plug, and the venous catheter is in interference fit with the connecting plug; the connecting plug is also externally provided with a clamping device for increasing the positive pressure between the venous catheter and the connecting plug.

2. The central venous catheter tubing closure device of claim 1, wherein the clamping means comprises a clamping bar and a clamping bolt; the number of the clamping strips is at least two, third external threads are arranged on the outer sides of the clamping strips, the extending direction of all the clamping strips is consistent with the extending direction of the connecting plug, and the clamping strips are uniformly distributed along the circumferential direction of the connecting plug; the clamping bolt is matched with the third external thread.

3. The central venous catheter tubing closure of claim 2, wherein the thickness of the clamping strip increases gradually in the length direction.

4. The central venous catheter tubing closure device of claim 3, wherein one end of the clamping strip is fixedly connected to the connector.

5. The central venous catheter tubing closure of claim 4, wherein the clamping strip has a thickness at an end proximate the connector that is less than a thickness at a distal end.

6. The central catheter tubing closure of claim 1, wherein the connector comprises a syringe connection section and an iv line connection section removably connected therebetween, wherein the second external thread is disposed at one end of the syringe connection section and the connector plug is fixedly disposed at one end of the iv line connection section.

7. The central venous catheter tubing closure of claim 6 wherein the threaded connection between the syringe connection sub and the venous catheter connection sub.

8. The central venous catheter tubing closure of claim 7 wherein the end of the syringe connection subsection distal to the second external thread is provided with a fourth internal thread and the end of the venous catheter connection subsection distal to the connection plug is provided with a matching fourth external thread; the syringe is characterized in that a sealing insertion tube is further arranged on the syringe connecting part, one end of the sealing insertion tube is fixedly connected with the syringe connecting part, the central axis of the sealing insertion tube coincides with the central axis of the fourth internal thread, and the outer diameter of the sealing insertion tube is equal to the inner diameter of the syringe connecting part.

9. The central venous catheter tubing sealing device of claim 6 wherein the connector is further provided with a nipple partially covering the syringe connection and venous catheter connection sections.

10. The central venous catheter tube sealing device as claimed in claim 9, wherein the central axis of the connecting sleeve coincides with the central axis of the syringe connecting sub-section, the connecting sleeve and the syringe connecting sub-section are slidably connected, and a limiting block is arranged at the end of the syringe connecting sub-section to prevent the connecting sleeve from falling off the syringe connecting sub-section; the connecting sleeve is in threaded connection with the venous catheter connecting branch.