CN203971035U - A kind of medical injection chemicals dosing plant - Google Patents
A kind of medical injection chemicals dosing plant Download PDFInfo
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- CN203971035U CN203971035U CN201420334310.2U CN201420334310U CN203971035U CN 203971035 U CN203971035 U CN 203971035U CN 201420334310 U CN201420334310 U CN 201420334310U CN 203971035 U CN203971035 U CN 203971035U
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- syringe
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- needle
- piston cylinder
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- 238000010999 medical injection Methods 0.000 title claims abstract description 8
- 239000000126 substance Substances 0.000 title 1
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 abstract description 34
- 239000007788 liquid Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 10
- 238000005086 pumping Methods 0.000 abstract description 4
- 206010011409 Cross infection Diseases 0.000 abstract description 3
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 4
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
本实用新型涉及一种医用注射加药装置，针筒的尾部为封闭端，侧壁上开设有条形通孔，推拉装置包括活塞缸、活塞、U形连杆和推拉柄，活塞缸贴设在针筒外壁上，活塞缸的侧壁上对应条形通孔设置有通气孔，活塞缸内设置有活塞，活塞通过U形连杆与推拉柄连接。针头的侧壁上设置有通气管，通气管的开口端朝向针头座设置，且通气管靠近封闭端的侧壁上开设有进气孔，该进气孔和通气管的开口端处均设置有空气过滤膜。本实用新型的加药装置结构简单，使用方便，能有效地防止操作注射器时对药液的交叉感染，并且本加药装置的针头具有通气管，在抽药过程中能够维持药瓶内外的气压平衡，使加药操作更加省力，能提高加药的工作效率。
The utility model relates to a medical injection dosing device. The tail of the syringe is a closed end, and a strip-shaped through hole is opened on the side wall. The push-pull device includes a piston cylinder, a piston, a U-shaped connecting rod and a push-pull handle. On the outer wall of the syringe, a ventilation hole is provided on the side wall of the piston cylinder corresponding to the strip-shaped through hole, and a piston is arranged in the piston cylinder, and the piston is connected with the push-pull handle through a U-shaped connecting rod. The side wall of the needle is provided with a ventilation tube, the opening end of the ventilation tube is set towards the needle seat, and the side wall of the ventilation tube close to the closed end is provided with an air intake hole, and the air intake hole and the opening end of the ventilation tube are provided with air filter membrane. The dosing device of the utility model is simple in structure, easy to use, and can effectively prevent cross-infection of the liquid medicine when the syringe is operated, and the needle of the dosing device has a ventilation tube, which can maintain the air pressure inside and outside the medicine bottle during the medicine pumping process The balance makes the dosing operation more labor-saving and can improve the work efficiency of dosing.
Description
技术领域 technical field
本实用新型涉及医疗器械技术领域，具体涉及一种医用注射加药装置。 The utility model relates to the technical field of medical devices, in particular to a medical injection dosing device.
背景技术 Background technique
目前，医院中普遍使用的加药注射器为普通的注射器，是由针筒、活塞和推杆组成，医护人员在操作时通过推杆推拉活塞移动，实现抽吸药液、混合药液等操作，配药的过程为：将注射器插入药液瓶中抽取少量的药液；然后拔出注射器并插入药粉瓶中，把药液注入药粉瓶中，待药粉与药液完全溶解后，再抽出混合液注入输液瓶内。但在实际使用中发现，医护人员在进行抽吸药液、混合药液等操作时，手指会接触到推杆，存在药液被污染的可能，容易造成交叉传染。并且在上述配药过程中，由于药瓶为密封结构，因此操作时会产生一定的负压差，使操作很费力。 At present, the dosing syringe commonly used in hospitals is an ordinary syringe, which is composed of a syringe, a piston and a push rod. During operation, the medical staff pushes and pulls the piston through the push rod to move, so as to realize operations such as suctioning and mixing the liquid medicine. The process of dispensing medicine is: insert the syringe into the liquid medicine bottle to extract a small amount of medicine liquid; then pull out the syringe and insert it into the medicine powder bottle, inject the medicine liquid into the medicine powder bottle, and after the medicine powder and medicine liquid are completely dissolved, draw out the mixed solution and inject it into the medicine powder bottle. In the infusion bottle. However, in actual use, it has been found that when medical staff perform operations such as suctioning and mixing medicinal liquid, their fingers will touch the push rod, which may cause contamination of the medicinal liquid and easily cause cross-infection. And in the above-mentioned dispensing process, since the medicine bottle is a sealed structure, a certain negative pressure difference will be generated during operation, which makes the operation very laborious.
实用新型内容 Utility model content
本实用新型的目的是为解决上述技术问题的不足，提供一种医用注射加药装置。 The purpose of this utility model is to provide a medical injection dosing device to solve the above technical problems.
本实用新型为解决上述技术问题的不足，所采用的技术方案是：一种医用注射加药装置，包括针筒、针头、针头座和推拉装置，针头固定设置在针头座上，针筒通过头部与针头座配合连接； In order to solve the deficiencies of the above-mentioned technical problems, the utility model adopts a technical scheme as follows: a medical injection dosing device, including a syringe, a needle, a needle seat and a push-pull device, the needle is fixedly arranged on the needle seat, and the syringe passes through the head The part is connected with the needle seat;
所述针筒的尾部为封闭端，针筒靠近尾部的侧壁上沿圆周方向开设有条形通孔，所述的推拉装置包括活塞缸、活塞、U形连杆和推拉柄，活塞缸为一端开口的弧形壳体，活塞缸贴设在针筒靠近尾部的外壁上，且活塞缸的开口朝向针筒的头部方向设置，所述活塞缸靠近封闭端的侧壁上对应条形通孔的位置设置有通气孔，活塞缸和针筒之间通过条形通孔和通气孔实现连通，活塞缸内设置有活塞，活塞通过U形连杆与推拉柄连接，所述U形连杆的开口方向与活塞缸的开口方向相反，U形连杆的一端置于活塞缸内与活塞固定连接，U形连杆的另一端置于活塞缸外与推拉柄固定连接，所述活塞缸的外壁上沿针筒的轴向方向设置有两条导轨，推拉柄卡设在两条导轨上，推拉柄可沿导轨方向位移，所述针筒靠近头部端的侧壁上设置有挡板，且挡板与U形连杆之间设置有弹簧，弹簧一端固定在挡板上，弹簧另一端固定在U形连杆的横杆部分； The tail of the syringe is a closed end, and the side wall of the syringe near the tail is provided with a strip-shaped through hole along the circumferential direction. The push-pull device includes a piston cylinder, a piston, a U-shaped connecting rod and a push-pull handle, and the piston cylinder is An arc-shaped housing with one end open, the piston cylinder is attached to the outer wall of the syringe near the tail, and the opening of the piston cylinder is set towards the head of the syringe, and the side wall of the piston cylinder near the closed end corresponds to a strip-shaped through hole The position is provided with a vent hole, and the communication between the piston cylinder and the syringe is realized through the strip-shaped through hole and the vent hole. A piston is arranged in the piston cylinder, and the piston is connected with the push-pull handle through a U-shaped connecting rod. The opening direction is opposite to the opening direction of the piston cylinder. One end of the U-shaped connecting rod is placed inside the piston cylinder and fixedly connected with the piston. The other end of the U-shaped connecting rod is placed outside the piston cylinder and fixedly connected with the push-pull handle. The outer wall of the piston cylinder There are two guide rails arranged along the axial direction of the syringe, the push-pull handle is clamped on the two guide rails, the push-pull handle can be displaced along the direction of the guide rails, the side wall of the syringe near the head end is provided with a baffle, and the baffle A spring is arranged between the plate and the U-shaped connecting rod, one end of the spring is fixed on the baffle plate, and the other end of the spring is fixed on the cross bar of the U-shaped connecting rod;
所述针头的侧壁上设置有通气管，通气管为一端开口的圆筒状管体，通气管的另一端为封闭端，且该封闭端呈尖刺状，所述通气管的开口端朝向针头座设置，且通气管靠近封闭端的侧壁上开设有进气孔，该进气孔和通气管的开口端处均设置有空气过滤膜，所述针头上还套设有挡圈，挡圈设置在进气孔和通气管的开口端之间的位置。 The side wall of the needle is provided with a vent tube, the vent tube is a cylindrical tube with one end open, the other end of the vent tube is a closed end, and the closed end is spike-shaped, and the open end of the vent tube faces The needle seat is set, and the side wall of the ventilation tube close to the closed end is provided with an air inlet hole, the air inlet hole and the opening end of the ventilation tube are all provided with an air filter membrane, and the needle is also sleeved with a retaining ring, the retaining ring Set between the air intake hole and the open end of the snorkel.
所述针头座的材质为塑料。 The material of the needle base is plastic.
有益效果Beneficial effect
本实用新型的加药器能够避免操作人员在加药过程中手指触碰到会接触到药液的推杆和活塞，结构简单，使用方便，能有效地防止操作注射器时对药液的交叉感染，并且本加药装置的针头具有通气管，在抽药过程中能够维持药瓶内外的气压平衡，使加药操作更加省力，能提高加药的工作效率。 The dosing device of the utility model can prevent the operator from touching the push rod and the piston with the liquid medicine during the dosing process, has a simple structure, is convenient to use, and can effectively prevent cross-infection of the medicine liquid when operating the syringe , and the needle of the dosing device has a ventilation tube, which can maintain the air pressure balance inside and outside the medicine bottle during the medicine pumping process, so that the dosing operation is more labor-saving and the work efficiency of dosing can be improved.
附图说明 Description of drawings
图1为本实用新型的加药器的结构示意图； Fig. 1 is the structural representation of the dosing device of the utility model;
图2为本实用新型的加药器抽药时的结构示意图； Fig. 2 is the structural representation when the dosing device of the present utility model draws medicine;
图中标记： 1、针筒，2、针头，3、针头座，4、条形通孔，5、活塞缸，6、活塞，7、U形连杆，8、推拉柄，9、通气管，10、进气孔,11、挡圈，12、挡板，13、弹簧。 Marks in the figure: 1. Syringe, 2. Needle, 3. Needle holder, 4. Strip through hole, 5. Piston cylinder, 6. Piston, 7. U-shaped connecting rod, 8. Push-pull handle, 9. Breather tube , 10, air intake hole, 11, retaining ring, 12, baffle plate, 13, spring.
具体实施方式 Detailed ways
如图所示：一种医用注射加药装置，包括针筒1、针头2、针头座3和推拉装置，针头2固定设置在针头座3上，所述针头座3的材质为塑料。针筒1通过头部与针头座3配合连接。所述针筒1的尾部为封闭端，针筒1靠近尾部的侧壁上沿圆周方向开设有条形通孔4，所述的推拉装置包括活塞缸5、活塞6、U形连杆7和推拉柄8，活塞缸5为一端开口的弧形壳体，活塞缸5贴设在针筒1靠近尾部的外壁上，且活塞缸5的开口朝向针筒1的头部方向设置，所述活塞缸5靠近封闭端的侧壁上对应条形通孔4的位置设置有通气孔，活塞缸5和针筒1之间通过条形通孔4和通气孔实现连通，活塞缸5内设置有活塞6，活塞6通过U形连杆7与推拉柄8连接，所述U形连杆7的开口方向与活塞缸5的开口方向相反，U形连杆7的一端置于活塞缸5内与活塞6固定连接，U形连杆7的另一端置于活塞缸5外与推拉柄8固定连接，所述活塞缸5的外壁上沿针筒1的轴向方向设置有两条导轨，推拉柄8卡设在两条导轨上，推拉柄8可沿导轨方向位移，所述针筒1靠近头部端的侧壁上设置有挡板12，且挡板12与U形连杆7之间设置有弹簧13，弹簧13一端固定在挡板12上，弹簧13另一端固定在U形连杆7的横杆部分。 As shown in the figure: a medical injection dosing device, including a syringe 1, a needle 2, a needle holder 3 and a push-pull device, the needle 2 is fixedly arranged on the needle holder 3, and the material of the needle holder 3 is plastic. The syringe 1 is mated with the needle holder 3 through the head. The tail of the syringe 1 is a closed end, and the side wall of the syringe 1 near the tail is provided with a strip-shaped through hole 4 along the circumferential direction, and the push-pull device includes a piston cylinder 5, a piston 6, a U-shaped connecting rod 7 and The push-pull handle 8, the piston cylinder 5 is an arc-shaped housing with an open end, the piston cylinder 5 is attached to the outer wall of the syringe 1 near the tail, and the opening of the piston cylinder 5 is arranged towards the head of the syringe 1, the piston On the side wall of the cylinder 5 close to the closed end, a vent hole is provided at the position corresponding to the strip-shaped through hole 4, and the communication between the piston cylinder 5 and the syringe 1 is realized through the strip-shaped through hole 4 and the vent hole, and the piston cylinder 5 is provided with a piston 6 , the piston 6 is connected with the push-pull handle 8 through the U-shaped connecting rod 7, the opening direction of the U-shaped connecting rod 7 is opposite to the opening direction of the piston cylinder 5, and one end of the U-shaped connecting rod 7 is placed in the piston cylinder 5 to connect with the piston 6 Fixedly connected, the other end of the U-shaped connecting rod 7 is placed outside the piston cylinder 5 and fixedly connected with the push-pull handle 8. Two guide rails are arranged on the outer wall of the piston cylinder 5 along the axial direction of the needle cylinder 1, and the push-pull handle 8 is locked. Located on two guide rails, the push-pull handle 8 can be displaced along the direction of the guide rails, a baffle 12 is provided on the side wall of the syringe 1 close to the head end, and a spring 13 is provided between the baffle 12 and the U-shaped connecting rod 7 One end of the spring 13 is fixed on the baffle plate 12, and the other end of the spring 13 is fixed on the crossbar part of the U-shaped connecting rod 7.
所述针头2的侧壁上设置有通气管9，通气管9为一端开口的圆筒状管体，通气管9的另一端为封闭端，且该封闭端呈尖刺状，所述通气管9的开口端朝向针头座3设置，且通气管9靠近封闭端的侧壁上开设有进气孔10，该进气孔10和通气管9的开口端处均设置有空气过滤膜，所述针头2上还套设有挡圈11，挡圈11设置在进气孔10和通气管9的开口端之间的位置。 The side wall of the needle 2 is provided with a vent tube 9, the vent tube 9 is a cylindrical body with an open end, the other end of the vent tube 9 is a closed end, and the closed end is spike-shaped, and the vent tube 9 is a closed end. The open end of 9 is arranged toward the needle holder 3, and an air inlet 10 is provided on the side wall of the ventilation pipe 9 close to the closed end, and an air filter membrane is arranged at the opening end of the air inlet 10 and the ventilation pipe 9, and the needle 2 is also sleeved with a retaining ring 11, and the retaining ring 11 is arranged at a position between the air intake hole 10 and the opening end of the ventilation pipe 9.
本实用新型的加药器的使用过程如下：需要将药瓶里的药抽到针筒时，先将针头穿过药瓶的瓶塞，并将针头一直往里推，直到挡圈顶住瓶塞，然后推动推拉柄，使推拉柄向针头方向移动，推拉柄带动活塞向针头方向移动，使针筒内形成负压，从而可以通过针头将药瓶内的药液吸入针筒内，当需要将针筒内的药液挤出时，反向推动推拉柄（此时，在弹簧的弹力作用下，推动推拉柄会更加容易），使推拉柄向针头相反方向移动，对针筒内的药液形成正压，从而可以将药液压出，整个过程中药液不会接触活塞和连杆，能够避免药液污染，并且在抽药过程中，由于药瓶内形成负压，外界的空气会经过通气管的开口端和进气孔进入药瓶内，以维持药瓶内外的气压一致，使抽药的过程更加省力。 The usage process of the dosing device of the utility model is as follows: when the medicine in the medicine bottle needs to be pumped into the syringe, the needle is first passed through the bottle stopper of the medicine bottle, and the needle is pushed inward until the retaining ring withstands the bottle Then push the push-pull handle, so that the push-pull handle moves toward the needle head, and the push-pull handle drives the piston to move toward the needle head, so that a negative pressure is formed in the syringe, so that the liquid medicine in the medicine bottle can be sucked into the syringe through the needle. When extruding the liquid medicine in the syringe, push the push-pull handle in the opposite direction (at this time, under the elastic force of the spring, it will be easier to push the push-pull handle), so that the push-pull handle moves in the opposite direction to the needle, and the medicine in the syringe The liquid forms a positive pressure, so that the liquid medicine can be pumped out. During the whole process, the liquid medicine will not contact the piston and connecting rod, which can avoid the pollution of the liquid medicine. In addition, during the process of pumping medicine, due to the negative pressure in the medicine bottle, the outside air will It enters into the medicine bottle through the open end of the ventilation tube and the air inlet to maintain the same air pressure inside and outside the medicine bottle, so that the process of pumping medicine is more labor-saving.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334310.2U CN203971035U (en) | 2014-06-23 | 2014-06-23 | A kind of medical injection chemicals dosing plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334310.2U CN203971035U (en) | 2014-06-23 | 2014-06-23 | A kind of medical injection chemicals dosing plant |
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| CN203971035U true CN203971035U (en) | 2014-12-03 |
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| CN201420334310.2U Expired - Fee Related CN203971035U (en) | 2014-06-23 | 2014-06-23 | A kind of medical injection chemicals dosing plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056320A (en) * | 2014-06-23 | 2014-09-24 | 河南科技大学第一附属医院 | Medical injection dosing device |
| CN110812227A (en) * | 2019-12-07 | 2020-02-21 | 齐雪莲 | Non-hanging infusion set based on clinical care in medical science |
-
2014
- 2014-06-23 CN CN201420334310.2U patent/CN203971035U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056320A (en) * | 2014-06-23 | 2014-09-24 | 河南科技大学第一附属医院 | Medical injection dosing device |
| CN110812227A (en) * | 2019-12-07 | 2020-02-21 | 齐雪莲 | Non-hanging infusion set based on clinical care in medical science |
| CN110812227B (en) * | 2019-12-07 | 2022-04-05 | 张金梅 | A non-hanging infusion device based on clinical nursing in medicine |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150623 |
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| EXPY | Termination of patent right or utility model |