CN212661817U - A new type of blood gas analysis lancet - Google Patents
A new type of blood gas analysis lancet Download PDFInfo
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- CN212661817U CN212661817U CN202020354489.3U CN202020354489U CN212661817U CN 212661817 U CN212661817 U CN 212661817U CN 202020354489 U CN202020354489 U CN 202020354489U CN 212661817 U CN212661817 U CN 212661817U
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- blood gas
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Abstract
本实用新型涉及医疗器械技术领域，且公开了一种新型血气分析采血针，包括乳头，所述乳头的左侧固定连接有针头，所述乳头的左侧且位于针头的外侧套装有针帽，所述乳头的外侧活动安装有卡扣，所述卡扣的右侧活动连接有采血保护套，所述乳头的右侧固定安装有内针，所述乳头的外侧且位于内针的外侧套装有橡胶套。当血气针筒插入血保护套中，橡胶套收到挤压并向左收缩，同时内针裸露出来并穿入血气针筒中，当穿刺成功，动脉血液由于自身压力自动喷射如血气针筒，当活塞向右侧拉动时，血气针筒内形成负压，可达到加速抽血的目的；血气标本采集结束后，旋动卡扣，取下血气针筒，这时橡胶套受自身弹力作用向右回弹复位，包裹内针，闭合状态，从而达到阻止血液喷出的目的。
The utility model relates to the technical field of medical devices, and discloses a novel blood gas analysis blood collection needle, comprising a nipple, a needle head is fixedly connected to the left side of the nipple, and a needle cap is sleeved on the left side of the nipple and located outside the needle head, The outer side of the nipple is movably installed with a buckle, the right side of the buckle is movably connected with a blood collection protective cover, the right side of the nipple is fixedly installed with an inner needle, and the outer side of the nipple and located on the outer side of the inner needle is sleeved with a protective sleeve. Rubber sleeve. When the blood gas needle is inserted into the blood protective sleeve, the rubber sleeve is squeezed and shrunk to the left, and the inner needle is exposed and penetrated into the blood gas needle. When the piston is pulled to the right, a negative pressure is formed in the blood gas syringe, which can achieve the purpose of accelerating blood drawing; after the collection of blood gas samples, turn the buckle to remove the blood gas syringe, and the rubber sleeve is affected by its own elastic force to the right Rebound reset, wrap the inner needle, and close the state, so as to achieve the purpose of preventing blood from ejecting.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically a novel blood gas analysis blood taking needle.
Background
Blood gas analysis of critical patients is an important clinical index, and the accuracy of results is crucial to clinical diagnosis. In order to ensure the accuracy of results, a special standard flow for arterial blood collection is established at present, and a special blood gas blood collection needle is required for sample collection. However, the blood gas needle can only collect a blood gas tube blood specimen after successful puncture. Many patients need to collect multitubular blood samples simultaneously, such as pre-transfusion examinations, blood routine, coagulation, blood culture, etc., which are important for clinical diagnosis as well as treatment. If a special blood-gas needle is used for puncture, the needle head needs to be pulled out after the blood-gas sample is collected, the puncture is carried out again, and other samples are collected after the puncture is successful. Excessive puncture aggravates the pain of the patient, is easy to cause dissatisfaction of the patient and even cause the contradiction of nursing, increases the workload for nurses, and increases the risk of infection for the patient. If the traditional blood and gas blood taking needle is used for puncturing and successfully collecting blood, the needle head is continuously kept in the original position, and only the needle cylinder is removed without blood spraying and splashing, so that other blood samples can be continuously collected.
SUMMERY OF THE UTILITY MODEL
In order to realize that above-mentioned artery blood gas analysis blood taking needle realizes a puncture, the purpose that the multitube was gathered and did not take place to reveal, the utility model provides a following technical scheme: the utility model provides a novel blood gas analysis blood taking needle, includes the nipple, nipple's left side fixedly connected with syringe needle, the outer side cover that nipple's left side and lie in the syringe needle is equipped with the needle cap, nipple's outside movable mounting has the buckle, the right side swing joint of buckle has the blood sampling protective sheath, nipple's right side fixed mounting has interior needle, the outer side cover that the nipple's outside and lie in interior needle is equipped with the rubber sleeve, the inboard of blood sampling protective sheath is pegged graft and is had the blood gas cylinder, the inside of blood gas cylinder is provided with the piston, the right side fixed mounting of piston has the piston shaft, the right side fixed mounting of piston shaft has the piston.
Preferably, the needle head and the inner needle are integrally formed, and the length of the needle head is one time of that of the inner needle.
Preferably, the diameter of the blood collection protective sleeve is larger than that of the blood gas syringe.
Preferably, the diameter of the piston is smaller than that of the blood gas syringe.
Preferably, the rubber sleeve on the outer side of the inner needle just wraps the inner needle.
As an optimization, the left side of the blood sampling protective sleeve is provided with a convex nozzle, the outer surface of the convex nozzle is provided with a thread groove, the convex nozzle is immersed into the inside of the buckle, and the buckle is in threaded connection with the convex nozzle.
Preferably, the length of the blood collection protective sleeve is smaller than that of the blood gas syringe.
The utility model has the advantages that: the blood-gas syringe is fixed in the blood protective sleeve through a spiral buckle, the rubber sleeve is extruded and contracts leftwards, the inner needle is exposed and penetrates into the blood-gas syringe, after the puncture is successful, arterial blood is injected into the blood-gas syringe due to the pressure of the arterial blood, and when the piston is pulled rightwards, negative pressure is formed in the blood-gas syringe, so that the purpose of accelerating blood drawing is achieved; after the collection of the blood and gas specimen is finished, the buckle is rotated, the blood and gas needle cylinder is taken down, the rubber sleeve rebounds and resets rightwards under the action of the elasticity of the rubber sleeve and wraps the inner needle, so that the closing purpose is achieved, and the blood is prevented from being sprayed out; when the blood routine, coagulation and other samples need to be continuously extracted, the inner needle with the rubber sleeve is directly inserted into the rubber plug of the blood collection tube, at the moment, the inner needle can penetrate out of the rubber sleeve again and enter the interior of the blood collection tube to form a passage, and the blood is sucked out by negative pressure in the blood collection tube; the rubber sleeve is extruded by the hemostix, and the side compression left, similar spring action finishes when taking a blood sample, removes after the hemostix, and the rubber sleeve is kick-backed right by self elastic action and resets, wraps up the inner needle to reach closed purpose and prevent the blood blowout, realize once puncture multitube blood sampling and blood does not have the purpose of revealing.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention after use;
FIG. 2 is a cross-sectional view of the structure of the present invention in use;
fig. 3 is an enlarged view of a structure at a in fig. 2 according to the present invention.
In the figure: 1-needle cap, 2-needle head, 3-nipple, 4-blood sampling protective sleeve, 5-buckle, 6-rubber sleeve, 7-inner needle, 8-blood gas syringe, 9-piston, 10-piston shaft and 11-piston handle.
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.
Referring to fig. 1-3, a novel blood gas analysis blood taking needle comprises a nipple 3, wherein a needle 2 is fixedly connected to the left side of the nipple 3, a needle cap 1 is sleeved on the left side of the nipple 3 and located on the outer side of the needle 2, a buckle 5 is movably installed on the outer side of the nipple 3, a blood taking protective sleeve 4 is movably connected to the right side of the buckle 5, a convex nozzle is arranged on the left side of the blood taking protective sleeve 4, a thread groove is formed in the outer surface of the convex nozzle, the convex nozzle is embedded into the buckle 5, the buckle 5 is in threaded connection with the convex nozzle, an inner needle 7 is fixedly installed on the right side of the nipple 3, the needle 2 and the inner needle 7 are integrally formed, the length of the needle 2 is one time that of the inner needle 7, a rubber sleeve 6 is sleeved on the outer side of the nipple 3 and located on the outer side of the inner needle 7, a blood gas, wherein the diameter of blood sampling protective sheath 4 is greater than the diameter of blood gas cylinder 8, wherein the length of blood sampling protective sheath 4 is less than the length of blood gas cylinder 8, wherein the inside of blood gas cylinder 8 is provided with piston 9, wherein the diameter of piston 9 is less than the diameter of blood gas cylinder 8, wherein the right side fixed mounting of piston 9 has piston shaft 10, wherein the right side fixed mounting of piston shaft 10 has piston handle 11, when piston 9 pulls to the right side, form the negative pressure in the blood gas cylinder 8 to reach the mesh of drawing blood with higher speed.
When the blood-gas syringe is used, the blood-gas syringe 8 is fixed in the blood protective sleeve 4, the rubber sleeve 6 is extruded and contracts leftwards, the inner needle 7 is exposed and penetrates into the blood-gas syringe 8, after the puncture is successful, arterial blood is automatically injected into the blood-gas syringe due to the pressure of the arterial blood, and when the piston 9 is pulled rightwards, negative pressure is formed in the blood-gas syringe 8, so that the purpose of accelerating blood drawing is achieved; after the collection of the blood and gas sample is finished, the buckle 5 and the blood and gas needle cylinder 8 are rotated, at the moment, the rubber sleeve 6 rebounds and resets rightwards under the action of self elasticity to wrap the inner needle 7, so that the closing purpose is achieved, and the arterial blood is prevented from being sprayed and flowing out; when the blood routine, coagulation and other samples need to be continuously extracted, the inner needle 7 with the rubber sleeve 6 is directly inserted into the rubber plug of the blood collection tube, at the moment, the inner needle 7 penetrates out of the rubber sleeve 6 and enters the interior of the blood collection tube to form a passage, and the negative pressure in the blood collection tube accelerates the blood suction; rubber sleeve 6 receives the hemostix extrusion, and the side compression left, similar spring action finishes when taking a blood sample, removes after the hemostix, and rubber sleeve 6 receives self elastic action to kick-back right and resets, and needle 7 in the parcel to reach closed purpose, realize once puncture multitube blood sampling and the purpose that blood was revealed.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020354489.3U CN212661817U (en) | 2020-03-19 | 2020-03-19 | A new type of blood gas analysis lancet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020354489.3U CN212661817U (en) | 2020-03-19 | 2020-03-19 | A new type of blood gas analysis lancet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212661817U true CN212661817U (en) | 2021-03-09 |
Family
ID=74811401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020354489.3U Expired - Fee Related CN212661817U (en) | 2020-03-19 | 2020-03-19 | A new type of blood gas analysis lancet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212661817U (en) |
-
2020
- 2020-03-19 CN CN202020354489.3U patent/CN212661817U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210309 |
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| CF01 | Termination of patent right due to non-payment of annual fee |