CN201871040U - Blood return preventing infusion tube - Google Patents
Blood return preventing infusion tube Download PDFInfo
- Publication number
- CN201871040U CN201871040U CN2010206404148U CN201020640414U CN201871040U CN 201871040 U CN201871040 U CN 201871040U CN 2010206404148 U CN2010206404148 U CN 2010206404148U CN 201020640414 U CN201020640414 U CN 201020640414U CN 201871040 U CN201871040 U CN 201871040U
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- Prior art keywords
- connecting rod
- tube
- closing cover
- dividing plate
- hole
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- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a blood return preventing infusion tube, belonging to the technical field of medical appliances. The blood return preventing infusion tube comprises a tube body, wherein a partition plate is arranged in the tube body; a through hole is arranged in the middle of the partition plate; a connecting rod is arranged in the through hole; a liquid channel is arranged between the outer wall of the connecting rod and the inner wall of the through hole; the upper end of the connecting rod is provided with a spherical connector; an enclosed cap is sleeved on the spherical connector; contact sealing is adopted between the lower surface of the enclosed cap and the upper surface of the partition plate; a floater is connected with the upper part of the enclosed cap; and the upper part of a filter is provided with an upward nipple-shaped bulge which is communicated with the filter. With the adoption of the structure, the blood return preventing infusion tube has the advantages that the tube can prevent the blood from flowing back, has simple structure and is safer and more reliable to use.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of non-blood returning transfusion tube.
Background technology
The traditional infusion pipe that uses in the clinical treatment (be Mo Feishi pipe) needs medical personnel constantly to observe liquid level in use, prevents that transfusion from finishing in the air admission tube for transfusion of back and backflow of blood, and this tube for transfusion has increased medical personnel's workload, and it is inconvenient to use.Chinese patent description CN2803405 discloses a kind of buoy type safe transfusion tube, utilize the sealing that contacts between closing cover lower surface and the pipe connections upper surface, after transfusion is finished, the lower surface of closing cover contacts the back and forms sealing with the upper surface of pipe connections, tube for transfusion is finished rear defence hemostasis liquid in transfusion and is refluxed, to improve the usage safety performance of tube for transfusion; This technical scheme also utilizes closing cover to be socketed on the ball-joint head of small end, and the automatic correction of gravity direction when realizing body generation small angle deflection is to guarantee sealing effectiveness.But in the technical scheme of this patent, float is positioned at the connector bottom, after transfusion is finished is to utilize the static pressure of liquid to prevent backflow of blood, this need hang up tube for transfusion in higher position usually, otherwise the blood pressure of human body can compress the air in the lower tube body equally, and backflow of blood takes place, the gas of hypomere tube for transfusion can not enter the patient vessel in the infusion process, therefore, be necessary above-mentioned technology is improved, to reach better safe effect.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and non-blood returning transfusion tube a kind of simple in structure, safe in utilization, reliable is provided.
This utility model comprises body, in body, be provided with dividing plate, be provided with through hole at the dividing plate middle part, connecting rod is arranged in through hole, between connecting rod outer wall and through-hole wall, leave fluid passage, the upper end of connecting rod is provided with ball-joint head, on ball-joint head, be with closing cover, contact sealing between the lower surface of closing cover and the upper surface of dividing plate, described closing cover top is connected with float, lower end at connecting rod is connected with weight, is provided with a papillary bulge that makes progress that communicates with filter on the top of filter.
Described inboard wall of tube body can be provided with a ring annular groove, and the neighboring of dividing plate is embedded in this annular groove and is tightly connected.
After this utility model adopts said structure, float is arranged on the top of sealing cap, the lower end of connecting rod is connected with weight, even like this after transfusion is finished, there is not air to retain in the lower tube body yet, directly utilize the absorption affinity between sealing cap and the dividing plate to realize sealing, thereby do not need tube for transfusion is hung up too high; And when tube for transfusion waves, also can guarantee sealing effectiveness, and preventing that blood from refluxing, the gas of hypomere tube for transfusion can not enter the patient vessel in the infusion process, uses safer, reliable.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment 1 non-blood returning transfusion tube;
Fig. 2 is the structural representation of this utility model embodiment 2 non-blood returning transfusion tubes;
Fig. 3 is one of user mode sketch map of this utility model non-blood returning transfusion tube;
Fig. 4 is one of user mode sketch map of this utility model non-blood returning transfusion tube.
Among the figure: body 1, upper tube body 1a, lower tube body 1b, annular groove 1c, dividing plate 2, through hole 2a, connecting rod 3, ball-joint 3a, closing cover 4, float 5, weight 6, shell 6a, steel ball 6b, liquid level L, papillary bulge 7, filter 8.
The specific embodiment
Below in conjunction with the embodiment in the accompanying drawing this utility model is described in further detail, but does not constitute any restriction of the present utility model.
Embodiment 1: as shown in Figure 1, non-blood returning transfusion tube of the present utility model comprises body 1, is provided with dividing plate 2 in body 1, and body 1 is made up of upper tube body 1a and lower tube body 1b, is tightly connected by dividing plate 2 between upper and lower body 1a, 1b; Be provided with through hole 2a at dividing plate 2 middle parts, connecting rod 3 is arranged in through hole 2a, leave fluid passage between connecting rod 3 outer walls and through hole 2a inwall, fluid passage is along axially extended many grooves of connecting rod 3 outer wall surface; The upper end of connecting rod 3 is provided with ball-joint 3a, on ball-joint 3a, be with closing cover 4, contact sealing between the upper surface of the lower surface of closing cover 4 and dividing plate 2, by ball-joint 3a is set, can make connecting rod 3 rotate the sealing property when deflecting between closing cover 4 and the dividing plate 2 with automatic correction body with respect to closing cover 4; Be connected with float 5 on closing cover 4 tops, float 5 is a hollow-core construction, adopts the medical silica-gel global formation with closing cover 4, and top seals by plug; Be connected with weight 6 in the lower end of connecting rod 3, this weight 6 is made up of shell 6a and the steel ball 6b that is placed in the shell 6a, like this can be when body 1 deflects, steel ball 6b can roll in shell 6a, combine with ball-joint 3a of connecting rod 3 upper ends, automatically revise gravity deflection,, guarantee the sealing effectiveness between closing cover 4 and the dividing plate to guarantee connecting rod 3 all the time vertically downward.
Embodiment 2: as shown in Figure 2, be another kind of non-blood returning transfusion tube of the present utility model, substantially the same manner as Example 1, difference is in the connected mode of the structure of body 1 and float 5 and closing cover 4, its middle tube body 1 is a monoblock type, and being provided with a ring annular groove 1c at the inwall of body 1, the neighboring of dividing plate 2 is embedded in this annular groove 1c and is tightly connected; And float 5 is a hollow ball, and socket connection between the closing cover 4.
As shown in Figure 3, state for this utility model normal infusion, liquid constantly enters from upper tube body 1a, make float 5 be positioned at liquid and generation buoyancy upwards, (gravity comprises the own wt of float 5 during greater than gravity when buoyancy, sealing cap 4, the weight of connecting rod 3 and weight 6, generally because the adsorption between closing cover 4 and the dividing plate 2, need push body 1 with hands when just beginning, so that closing cover 4 separates with dividing plate 2), closing cover 4 is moved up, thereby the lower surface of closing cover 5 and the upper surface of dividing plate 2 are disengaged, behind the transfusion liquid process upper tube body 1a, in fluid passage flows to lower tube body 1b and be full of lower tube body 1b, the liquid level L in the upper tube body 1a keeps stable simultaneously; Transfusion liquid continuously outflows from the lower end of lower tube body 1b and enters human body, realizes normal infusion.
As shown in Figure 4, after flow of liquid in the infusion bottle is intact, because upper tube body 1 does not have liquid make-up to enter, the liquid level L of upper tube body 1a constantly descends, and the buoyancy that produces to float 5 is during less than gravity, and closing cover 4 moves down under the effect of gravity, when the lower surface of closing cover 4 contacts with the upper surface of dividing plate 2, promptly form the contact sealing, liquid stops to flow out from lower tube body 1b lower end, and transfusion stops; Because the sealing function of closing cover 4, and, can prevent effectively that blood from refluxing because of not having air in the lower tube body 1b; And be socketed in because of closing cover 4 on ball-joint the 3a of connecting rod 3 upper ends, even body 1 deflects, weight 6 and connecting rod 3 have automatic correcting action, can guarantee sealing effectiveness between closing cover 4 and the dividing plate 2, use safer, reliable.
Claims (2)
1. non-blood returning transfusion tube, comprise body (1), in body (1), be provided with dividing plate (2), be provided with through hole (2a) at dividing plate (2) middle part, in through hole (2a), connecting rod is arranged, between connecting rod (3) outer wall and through hole (2a) inwall, leave fluid passage, the upper end of connecting rod (3) is provided with ball-joint head (3a), on ball-joint head (3a), be with closing cover (4), contact sealing between the lower surface of closing cover (4) and the upper surface of dividing plate (2), described closing cover (4) top is connected with float (5), be connected with weight (6) in the lower end of connecting rod (3), it is characterized in that: be provided with a papillary bulge that makes progress (7) that communicates with filter (8) on the top of filter (8).
2. a kind of non-blood returning transfusion tube according to claim 1 is characterized in that: described body (1) inwall is provided with a ring annular groove (1c), and the neighboring of dividing plate (2) is embedded in this annular groove (1c) and is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206404148U CN201871040U (en) | 2010-12-03 | 2010-12-03 | Blood return preventing infusion tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206404148U CN201871040U (en) | 2010-12-03 | 2010-12-03 | Blood return preventing infusion tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201871040U true CN201871040U (en) | 2011-06-22 |
Family
ID=44158975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206404148U Expired - Fee Related CN201871040U (en) | 2010-12-03 | 2010-12-03 | Blood return preventing infusion tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201871040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309788A (en) * | 2011-09-01 | 2012-01-11 | 金剑波 | Multifunctional safety infusion apparatus |
-
2010
- 2010-12-03 CN CN2010206404148U patent/CN201871040U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309788A (en) * | 2011-09-01 | 2012-01-11 | 金剑波 | Multifunctional safety infusion apparatus |
| CN102309788B (en) * | 2011-09-01 | 2012-11-28 | 金剑波 | Multifunctional safety infusion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20111203 |