CN211561569U - Heparin cap - Google Patents
Heparin cap Download PDFInfo
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- CN211561569U CN211561569U CN201921974326.9U CN201921974326U CN211561569U CN 211561569 U CN211561569 U CN 211561569U CN 201921974326 U CN201921974326 U CN 201921974326U CN 211561569 U CN211561569 U CN 211561569U
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- liquid medicine
- elastic cuff
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- heparin cap
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Abstract
The utility model relates to a medical appliance, in particular to a heparin cap, which comprises a body, wherein a channel is arranged in the body, a medicine injection port communicated with a channel inlet is arranged above the body, and a connecting piece communicated with a channel outlet is arranged below the body; a cavity is formed between the outer wall of the channel and the inner wall of the body, and an elastic cuff is arranged in the cavity; a layer of baffle plate is arranged in the channel, a one-way liquid medicine inlet assembly communicated with the elastic cuff is arranged on the channel wall above the baffle plate, and a one-way liquid medicine outlet communicated with the elastic cuff is arranged on the channel wall below the baffle plate. The heparin cap can ensure that the indwelling needle which is not in use in the body of a patient is always in a smooth state by additionally arranging the elastic cuff and the related fittings, and can be used at any time.
Description
Technical Field
The utility model relates to a medical instrument especially relates to a heparin cap.
Background
The heparin cap is matched with the arteriovenous indwelling needle, and can be used for transfusion and medicine injection by repeated puncture. The heparin cap can also be used for sealing the interfaces of various indwelling catheters, and the heparin cap can be used for injecting heparin liquid to prevent blood backflow and anticoagulation. However, the probability of blocking the indwelling needle is high, and if the blocked indwelling needle is forcibly dredged, the problems of thromboembolism, pain, and the like may be caused, and the patient may feel uncomfortable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel heparin cap, it can ensure to be idle in patient's internal needle of keeping somewhere always to be in unobstructed state through addding elasticity cover bag and relevant accessory, can use at any time.
In order to achieve the above object, the utility model adopts the following technical scheme:
a heparin cap comprises a body, wherein a channel is arranged in the body, a drug injection port communicated with an inlet of the channel is arranged above the body, and a connecting piece communicated with an outlet of the channel is arranged below the body; a cavity is formed between the outer wall of the channel and the inner wall of the body, and an elastic cuff is arranged in the cavity; a layer of baffle plate is arranged in the channel, a one-way liquid medicine inlet assembly communicated with the elastic cuff is arranged on the channel wall above the baffle plate, and a one-way liquid medicine outlet communicated with the elastic cuff is arranged on the channel wall below the baffle plate.
Preferably, a reducing part is arranged at the joint of the channel and the connecting piece, and the minimum flow area of the reducing part is set to be 0.5-0.8 times of the flow area of the channel.
As a preferable scheme, the elastic cuff is in an ellipsoid shape with upper and lower openings after being inflated, and the upper and lower openings are respectively fixed on the outer walls of the upper and lower ends of the channel.
Preferably, the one-way liquid medicine outlet is an inclined slit arranged on the channel.
Specifically, the one-way liquid medicine inlet assembly comprises a liquid medicine inlet and a one-way baffle; the liquid medicine inlet is arranged on the channel, and the edge of the liquid medicine inlet is inclined, so that the flow area of the liquid medicine inlet is gradually enlarged from the inside of the channel to the outside of the channel; one-way baffle structure and liquid medicine entry phase-match, and its top and passageway outer wall rotate to be connected, and one-way baffle receives passageway internal pressure to rotate the back and can advance the medicine to elastic cuff, and one-way baffle card is gone into the liquid medicine entry behind the elastic cuff internal pressure and is locked, avoids the interior liquid medicine of elastic cuff to flow out.
As a preferred scheme, the medicine injection port is in snap connection or threaded connection with the body.
Preferably, the medicine injection port is made of rubber which can be penetrated by a needle tube.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses when using, pour into suitable anti-freezing medicine such as the heparin sodium of dilution into from the injection mouth through the cylinder in the elasticity cover bag, the anti-freezing medicine in with the cover bag slowly flows to keeping somewhere in the needle through one-way liquid medicine export through the power of contracting of cover bag, can slowly trickling liquid and anticoagulant with the needle of keeping somewhere of idle state, reduces the jam of keeping somewhere the needle.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the utility model in a use state.
Fig. 3 is a schematic view of the closing-opening structure of the one-way liquid medicine inlet assembly of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-body, 2-channel, 3-medicine injection port, 4-connecting piece, 5-elastic cuff, 6-baffle, 7-one-way liquid medicine inlet component, 8-one-way liquid medicine outlet, 9-one-way baffle and 10-reducing part.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
The embodiment aims to provide the heparin cap which can ensure that the indwelling needle is always in a unblocked state. Referring to fig. 1-3, the heparin cap comprises a cylindrical body 1, a channel 2 is arranged in the body, a drug injection port 3 communicated with an inlet of the channel is arranged above the body, a connecting piece 4 communicated with an outlet of the channel is arranged below the body, and an elastic cuff 5 is arranged in the body. Wherein, injection mouth 3 is similar with the injection mouth structure of current needle of keeping somewhere, for the rubber that the needle tubing can pierce through repeatedly, moreover, be buckle connection or threaded connection between injection mouth 3 and the body. The connecting piece 4 is cylindrical and is mainly used for being connected with an indwelling needle to fix a heparin cap.
In this embodiment, a cavity is formed between the outer wall of the channel 2 and the inner wall of the body 1, and the elastic cuff is located in the cavity. The elastic cuff is a contractible capsule-like structure, is filled with gas or liquid and is in an ellipsoid shape with upper and lower openings, the upper and lower openings are respectively fixed on the outer walls of the upper and lower ends of the channel 2, and the elastic cuff is contracted and attached on the outer wall of the channel 2 when not filled. This embodiment is further modified to allow the elastic cuff to function. Firstly, a layer of baffle plate 6 is arranged in the channel 2, then a one-way liquid medicine inlet assembly 7 communicated with the elastic cuff is arranged on the channel wall above the baffle plate, and a one-way liquid medicine outlet 8 communicated with the elastic cuff is arranged on the channel wall below the baffle plate. So, can make the anticoagulant liquid medicine that the injection mouth was injected into can be through one-way inflow elasticity of one-way liquid medicine entry subassembly cuff and can not palirrhea, and after injecting anticoagulant liquid medicine, because the slight pressure effect of elasticity cuff makes the anticoagulant liquid medicine in the elasticity cuff flow out to 2 lower parts of passageway through one-way liquid medicine export, then the needle is kept somewhere in rethread connecting piece entering, reaches the unblocked purpose of needle of keeping somewhere.
The one-way liquid medicine outlet 8 is an inclined slit arranged on the channel 2, and the flow area of the slit can be set according to specific conditions. The one-way liquid medicine inlet assembly 7 comprises a liquid medicine inlet and a one-way baffle 9; the liquid medicine inlet is arranged on the channel 2, and the edge of the liquid medicine inlet is inclined, so that the flow area of the liquid medicine inlet is gradually enlarged from the inside of the channel to the outside of the channel; the structure of the one-way baffle 9 is matched with the liquid medicine inlet, the upper part of the one-way baffle is rotationally connected with the outer wall of the channel, the one-way baffle can feed medicine into the elastic cuff after being rotated by the pressure in the channel, and the one-way baffle is clamped into the liquid medicine inlet to be locked after being pressed by the pressure in the elastic cuff, so that the liquid medicine in the elastic cuff is prevented from flowing out.
In addition, a reducing part 10 is arranged at the joint of the channel 2 and the connecting piece 4, and the minimum flow area of the reducing part is set to be 0.5-0.8 times of the flow area of the channel. Therefore, on one hand, the flow rate of the anticoagulant liquid medicine can be adjusted, and on the other hand, the elastic cuff is convenient to mount.
Claims (7)
1. A heparin cap comprises a body (1), and is characterized in that a channel (2) is arranged in the body, a drug injection port (3) communicated with an inlet of the channel is arranged above the body, and a connecting piece (4) communicated with an outlet of the channel is arranged below the body; a cavity is arranged between the outer wall of the channel (2) and the inner wall of the body (1), and an elastic cuff (5) is arranged in the cavity; a layer of baffle plate (6) is arranged in the channel (2), a one-way liquid medicine inlet assembly (7) communicated with the elastic cuff is arranged on the channel wall above the baffle plate, and a one-way liquid medicine outlet (8) communicated with the elastic cuff is arranged on the channel wall below the baffle plate.
2. Heparin cap according to claim 1, wherein the connection between the channel (2) and the connector (4) is provided with a reduced portion (10), the minimum flow area of which is set to be 0.5-0.8 times the flow area of the channel.
3. The heparin cap according to claim 1, wherein the elastic cuff (5) is in an ellipsoid shape with upper and lower openings after being inflated, and the upper and lower openings are respectively fixed on the outer walls of the upper and lower ends of the channel (2).
4. Heparin cap according to claim 1, wherein the one-way medical fluid outlet (8) is an inclined slit provided on the channel (2).
5. Heparin cap according to claim 1, wherein the one-way medical fluid inlet assembly (7) comprises a medical fluid inlet and a one-way baffle (9); the liquid medicine inlet is arranged on the channel (2), and the edge of the liquid medicine inlet is inclined, so that the flow area of the liquid medicine inlet is gradually enlarged from the inside of the channel to the outside of the channel; one-way baffle (9) structure and liquid medicine entry phase-match, and its top and passageway outer wall rotate to be connected, and one-way baffle receives passageway internal pressure to rotate the back and can advance the medicine in to elastic cuff, and one-way baffle blocks into liquid medicine entry lock after receiving elastic cuff internal pressure and dies, avoids the interior liquid medicine of elastic cuff to flow out.
6. Heparin cap according to claim 1, wherein the drug injection port (3) is snap-fit or screw-threaded with the body.
7. Heparin cap according to claim 1, characterized in that the injection opening (3) is rubber permeable to the needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921974326.9U CN211561569U (en) | 2019-11-15 | 2019-11-15 | Heparin cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921974326.9U CN211561569U (en) | 2019-11-15 | 2019-11-15 | Heparin cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211561569U true CN211561569U (en) | 2020-09-25 |
Family
ID=72530762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921974326.9U Active CN211561569U (en) | 2019-11-15 | 2019-11-15 | Heparin cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211561569U (en) |
-
2019
- 2019-11-15 CN CN201921974326.9U patent/CN211561569U/en active Active
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| GR01 | Patent grant | ||
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