CN213374732U - Central venous catheter extension tee joint with backflow prevention function - Google Patents
Central venous catheter extension tee joint with backflow prevention function Download PDFInfo
- Publication number
- CN213374732U CN213374732U CN202021672909.9U CN202021672909U CN213374732U CN 213374732 U CN213374732 U CN 213374732U CN 202021672909 U CN202021672909 U CN 202021672909U CN 213374732 U CN213374732 U CN 213374732U
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- Prior art keywords
- central venous
- joint
- venous catheter
- tee
- shell
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- Expired - Fee Related
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- 230000002265 prevention Effects 0.000 title claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 210000001503 joint Anatomy 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a central venous duct extension tee joint with backflow prevention, which comprises a connecting tee joint with a three-way valve, wherein one end of the connecting tee joint, which is used for connecting the central venous duct, is provided with a conical joint, a shell is vertically sleeved outside the conical joint, one end of the connecting tee joint, which is used for connecting a transfusion tube, is sleeved with a protective cap, and the other end of the connecting tee joint is provided with an extension tube; the vertical splint that are provided with in the casing, the splint symmetry is provided with two sets ofly, and is two sets of splint one end in opposite directions is concave to be equipped with arc wall and equal butt on the cone joint, and is two sets of the top and the equal vertical fixation in bottom of splint have a fixed plate, the one end and the shells inner wall slip butt that splint were kept away from to the fixed plate, the equal vertical push pedal that is provided with in both sides outside the casing. This central venous catheter extension tee bend with anti-return has anti-return, connects the advantage firm and convenient to operate, is worth promoting.
Description
Technical Field
The utility model belongs to the technical field of the medical tee bend of connecting, concretely relates to central venous catheter extension tee bend with anti-return.
Background
With the development of modern medicine, a central venous catheter is widely applied in hospitals, belongs to one of intravascular tubes, is placed in a large vein, and is used for large and rapid venous transfusion, establishment of a transfusion passage for critically ill patients and the like; at present, the following methods are mainly used for measuring the central venous pressure: one is to use a simple central venous manometry device for measurement, and the use is common; one is to measure the pressure by a transducer, and needs special instruments and has less application; the simple central vein manometry device which is widely applied at present is as follows: the infusion tube, the extension tube and the three-way switch are connected during pressure measurement, namely the devices are independent from each other, the extension tube and the tube cap are not integrated, the tube cap needs to be taken down during the measurement process, and in addition, a special central venous pressure ruler needs to be used for reading numerical values during the measurement.
However, the conventional three-way connection is not convenient and fast enough to connect with the central venous catheter, and is easy to slip off and cause blood backflow, so that further improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a central venous catheter extension tee bend with anti-return to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a central venous catheter extension tee joint with backflow prevention comprises a connecting tee joint provided with a tee joint, wherein a conical joint is arranged at one end of the connecting tee joint, which is used for connecting a central venous catheter, a shell is vertically sleeved outside the conical joint, a protective cap is sleeved at one end of the connecting tee joint, which is used for connecting a transfusion tube, and an extension tube is arranged at the other end of the connecting tee joint;
the vertical splint that are provided with in the casing, the splint symmetry is provided with two sets ofly, and is two sets of splint opposite end is concave to be equipped with arc wall and equal butt on the cone joint, and is two sets of the top and the equal vertical fixed plate in bottom of splint, the one end and the shells inner wall slip butt that splint were kept away from to the fixed plate, the equal vertical push pedal that is provided with in both sides outside the casing, the top and the equal level in bottom that the push pedal is close to casing one end are provided with the push-and-pull rod, the one end that the push pedal was kept away from to the push-and-pull rod passes casing lateral wall and adjacent fixed plate and another group in proper order the fixed plate is connected, and is two sets of the one end that splint kept away from each other is still.
Preferably, a pressing plate is vertically arranged in the protective cap, a second spring is perpendicularly welded to one end, far away from the connecting tee joint, of the pressing plate, the other end of the second spring is welded to the top wall of the protective cap, clamping plates are vertically arranged on the inner wall, close to one end of the connecting tee joint, of the protective cap, the clamping plates surround the protective cap and are provided with four groups, and flanges matched with the four groups of the clamping plates are arranged on the outer wall, connected with the tee joint, of one end of the protective cap.
Preferably, the connecting tee is used for connecting the inside valve that is provided with of one end of central venous catheter, the valve symmetry is provided with two sets ofly and all faces the one end of conical joint.
Preferably, a notch for inserting the central venous catheter is formed in one end, far away from the three-way valve, of the shell.
Preferably, the lateral sides of the pressure plate are in sliding abutting connection with the inner wall of the protective cap, and a sealing gasket is arranged on one end face, far away from the second spring, of the pressure plate.
The utility model discloses a technological effect and advantage: the central venous catheter extension tee joint with the backflow prevention function can quickly realize butt joint among a plurality of connecting tee joints and connection with a central venous catheter under the matching of the pressure plate, the clamping plate, the first spring, the push-pull rod and the flange, is stably connected, improves the protection effect under the matching of the protective cap, the second spring, the pressure plate, the sealing gasket and the clamping plate, and is simple and convenient to install; the effect of preventing blood from flowing back can be achieved by arranging the valve in one end of the connecting tee joint, which is used for connecting the central venous catheter. This central venous catheter extension tee bend with anti-return has anti-return, connects the advantage firm and convenient to operate, is worth promoting.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a side view of the housing of the present invention;
fig. 3 is a sectional view of the casing of the present invention
FIG. 4 is a cross-sectional view of the protective cap body of the present invention
FIG. 5 is a cross-sectional view of the connecting tee of the present invention
Fig. 6 is a schematic view of the flange structure of the present invention.
In the figure: the device comprises a connecting tee joint 1, a three-way valve 2, a conical joint 3, a shell 4, a protective cap 5, a notch 6, a push plate 7, a clamping plate 8, a first spring 9, a fixing plate 10, a push-pull rod 11, a pressing plate 12, a second spring 13, a clamping plate 14, a sealing gasket 15, a flange 16 and a valve 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a central venous duct extension tee joint with backflow prevention, as shown in figures 1-6, which comprises a connecting tee joint 1 provided with a tee joint valve 2, wherein one end of the connecting tee joint 1, which is used for connecting the central venous duct, is provided with a conical joint 3, a shell 4 is vertically sleeved outside the conical joint 3, one end of the connecting tee joint 1, which is used for connecting a transfusion tube, is sleeved with a protective cap 5, and the other end of the connecting tee joint 1 is provided with an extension tube;
vertically in the casing 4 be provided with splint 8, splint 8 symmetry is provided with two sets ofly, and is two sets of splint 8 one end in opposite directions is concave to be equipped with arc wall and equal butt on conical joint 3, and is two sets of splint 8's top and bottom all vertical fixation have fixed plate 10, splint 8's one end and 4 inner walls of casing slip butt are kept away from to fixed plate 10, the equal vertical push pedal 7 that is provided with in the outer both sides of casing 4, push pedal 7 is close to the top of 4 one ends of casing and the equal level in bottom and is provided with push-and-pull rod 11, the one end that push pedal 7 was kept away from to push-pull rod 11 passes 4 lateral walls of casing and adjacent fixed plate 10 and another in proper order fixed plate 10 is connected, and is two sets of the one end that splint 8 kept away from each other still horizontally welded has first spring 9, first spring.
Specifically, vertically be provided with clamp plate 12 in the helmet 5, the perpendicular welding of the one end that connects tee bend 1 is kept away from to clamp plate 12 has second spring 13, the other end and the 5 roof welding of helmet of second spring 13, vertically on the inner wall that helmet 5 is close to and connects tee bend 1 one end be provided with cardboard 14, cardboard 14 encircles helmet 5 and is provided with four groups, be provided with on the outer wall that connects tee bend 1 and connect helmet 5 one end with four groups flange 16 that cardboard 14 cooperation was used, through the cooperation of cardboard 14 and flange 16, and can reach the effect of the quick installation of helmet 5.
Specifically, the connection tee 1 is used for connecting the inside flap 17 that is provided with of one end of central venous catheter, flap 17 symmetry is provided with two sets ofly and all faces the one end of conical joint 3.
Specifically, the one end that three-way valve 2 was kept away from to casing 4 is seted up the notch 6 that supplies central ductus venosus to peg graft, should be provided with flange 16 on the outer wall of central ductus venosus and conical joint 3 link to cooperate splint 8 joint.
Specifically, the avris of clamp plate 12 all slides the butt on the inner wall of helmet 5, just clamp plate 12 is provided with sealed pad 15 on keeping away from the terminal surface of second spring 13 to improve the protection effect.
The working principle is as follows: when the central venous catheter extension tee joint with the backflow prevention function is used, the joint end of the central venous catheter is firstly sleeved on the conical joint 3, the push plates 7 on the two sides of the shell 4 are pressed simultaneously, the two groups of clamping plates 8 are driven to move away from each other under the conduction of the fixing plate 10 and the push-pull rod 11, when the joint end of the central venous catheter is completely sleeved on the conical joint 3, the two groups of push plates 7 are loosened, the two groups of clamping plates 8 are driven to abut against the central venous catheter under the action of the elastic force of the first spring 9, and the problem that the joint end of the central venous catheter falls off from the conical joint 3 in the using process can be effectively solved by arranging the flange 16 in advance at the joint end of the central venous catheter; meanwhile, the flange 16 is also arranged at one end of the connecting tee joint 1 provided with the protective cap 5, so that the quick butt joint among the connecting tee joints 1 can be realized in the manner; furthermore, when the protective cap 5 is sleeved, the protective cap 5 can be sleeved on the connecting tee joint 1 by enabling the four groups of clamping plates 14 at the front end of the protective cap 5 to be in cross butt joint with the flange 16 on the connecting tee joint, then the protective cap 5 can be installed by enabling the clamping plates 14 to be in clamping joint with the flange 16 through rotating the protective cap 5, meanwhile, the pressing plate 12 is pushed under the action of the elastic force of the second spring 13 to enable the sealing gasket 15 at the front end of the pressing plate 12 to be in sealing butt joint with the connecting tee joint 1, so that the protection effect is improved, and finally, the effect of preventing blood backflow can be achieved by arranging the valve 17 inside one end, used for being connected with the central venous catheter. This central venous catheter extension tee bend with anti-return has anti-return, connects the advantage firm and convenient to operate, is worth promoting.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a central venous catheter extension tee bend with anti-return, is including being equipped with connecting tee bend (1) of three-way valve (2), its characterized in that: a conical joint (3) is arranged at one end of the connecting tee joint (1) for connecting a central venous catheter, a shell (4) is vertically sleeved outside the conical joint (3), a protective cap (5) is sleeved at one end of the connecting tee joint (1) for connecting a transfusion tube, and an extension tube is arranged at the other end of the connecting tee joint (1);
the improved clamping device is characterized in that clamping plates (8) are vertically arranged in the shell (4), the clamping plates (8) are symmetrically arranged in two groups, one opposite ends of the clamping plates (8) are concavely provided with arc-shaped grooves and are abutted to the conical joints (3), fixing plates (10) are vertically fixed at the top ends and the bottom ends of the two groups of clamping plates (8), one ends, far away from the clamping plates (8), of the fixing plates (10) are abutted to the inner wall of the shell (4) in a sliding manner, push plates (7) are vertically arranged on the two outer sides of the shell (4), push rods (11) are horizontally arranged at the top and the bottom of one end, close to the shell (4), of each push plate (7), one ends, far away from the push plates (7), of the push rods (11) sequentially penetrate through the side wall of the shell (4) and the adjacent fixing plates (10) to be connected with the other group of the fixing plates (10), and first springs, the first springs (9) are arranged in parallel and are welded with the inner wall of the shell (4).
2. The central venous catheter extension tee with backflow prevention as claimed in claim 1, wherein: vertical clamp plate (12) that is provided with in helmet (5), the perpendicular welding of one end that connects tee bend (1) is kept away from in clamp plate (12) has second spring (13), the other end and helmet (5) roof welding of second spring (13), vertically on the inner wall that helmet (5) is close to and connects tee bend (1) one end be provided with cardboard (14), cardboard (14) encircle helmet (5) and are provided with four groups, be provided with on the outer wall of connecting tee bend (1) connection helmet (5) one end with four groups flange (16) that cardboard (14) cooperation was used.
3. The central venous catheter extension tee with backflow prevention as claimed in claim 1, wherein: the connecting tee joint (1) is used for connecting the inside valve (17) that is provided with of one end of central venous catheter, valve (17) symmetry is provided with two sets ofly and all towards the one end of conical joint (3).
4. The central venous catheter extension tee with backflow prevention as claimed in claim 1, wherein: and one end of the shell (4) far away from the three-way valve (2) is provided with a notch (6) for the insertion of the central venous catheter.
5. The central venous catheter extension tee with backflow prevention as claimed in claim 2, wherein: the avris of clamp plate (12) all slides the butt on the inner wall of helmet (5), just clamp plate (12) are kept away from and are provided with sealed pad (15) on the terminal surface of second spring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021672909.9U CN213374732U (en) | 2020-08-12 | 2020-08-12 | Central venous catheter extension tee joint with backflow prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021672909.9U CN213374732U (en) | 2020-08-12 | 2020-08-12 | Central venous catheter extension tee joint with backflow prevention function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213374732U true CN213374732U (en) | 2021-06-08 |
Family
ID=76204625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021672909.9U Expired - Fee Related CN213374732U (en) | 2020-08-12 | 2020-08-12 | Central venous catheter extension tee joint with backflow prevention function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213374732U (en) |
-
2020
- 2020-08-12 CN CN202021672909.9U patent/CN213374732U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210608 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |