CN2652328Y - Riston type arterial hemostix - Google Patents
Riston type arterial hemostix Download PDFInfo
- Publication number
- CN2652328Y CN2652328Y CN 200320105215 CN200320105215U CN2652328Y CN 2652328 Y CN2652328 Y CN 2652328Y CN 200320105215 CN200320105215 CN 200320105215 CN 200320105215 U CN200320105215 U CN 200320105215U CN 2652328 Y CN2652328 Y CN 2652328Y
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- China
- Prior art keywords
- piston
- utility
- blood
- hemostix
- connecting rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to a piston type arterial hemostix which belongs to a medical appliance. The utility model aims at solving the problem that when the existing piston type arterial hemostix accomplishes the operation of hemostix, parts of the blood of a hemostix specimen overflows from a vent-hole on the piston. The utility model comprises a syringe needle (14), a needle tube (13), a piston (11) and a piston rod (3), wherein the piston rod (3) is successively composed of a valve head (8), a connecting bar (4), a core bar (2) and a pressing hand (1). The utility model is characterized in that the valve head (8) contacts a valve cavity (9) of the piston (11) by a convex rib (7), and the connecting bar (4) contacts the rear vent-hole (6) of the valve cavity (9) by a groove (5) arranged on the side of the connecting bar (4); a heparin slice (12) is arranged in the needle tube (13).
Description
Technical field:
This utility model is to belong to medical apparatus and instruments.
Background technology:
The arterial blood drawing device is by arterial pressure blood to be entered in the hemostix automatically.But must be provided with the exhaust passage, blood is entered.External at present existing arterial blood drawing device of all kinds, its exhaust structure is had nothing in common with each other.The inwall at needle tubing that has is provided with vertical exhaust groove, because exhaust groove is the fixed position, so can only quantitatively take a blood sample.The piston center hole exhaust mode is arranged in addition, embed the porous material parts in piston center hole front end or hole, air is discharged through the porous gap of porous material, after blood touches porous material, its gap is closed, blocking-up aerofluxus and blood flow, but the manufacturing complexity of porous material.Also have a kind of arterial blood drawing device, for example the patent No. is 95232943.3 piston type arterial blood drawing device, just can overcome the shortcoming of said apparatus, have can arbitrarily quantitatively take a blood sample, characteristic of simple structure; But when having taken a blood sample, the specimen of being taken a blood sample also can be overflowed from the steam vent on the piston.
The utility model content:
This utility model solves present piston type arterial blood drawing device exactly when having adopted blood, the problem that the part blood of the specimen of being taken a blood sample overflows from the steam vent on the piston, provide a kind of when having adopted blood, the piston type arterial blood drawing device that can not overflowed from piston by the blood specimen adopted.
This utility model adopts following technical scheme: this utility model comprises syringe needle, needle tubing, piston, piston rod, piston rod is with valve head, connecting rod, core bar, forms successively by hands, its structural feature is that valve head contacts with the valve pocket of convex tendon with piston, and connecting rod contacts with the groove of the side final vacuum hole with valve pocket; Be provided with the heparin sheet in the needle tubing.
The beneficial effects of the utility model:
Because valve head of the present utility model contacts with the valve pocket of convex tendon with piston, connecting rod contacts with the groove of the side final vacuum hole with valve pocket, and aerofluxus is unimpeded, and blood enters needle tubing automatically; After having adopted blood, after piston rod promoted forward, the groove on the connecting rod was sealed, guarantees that by piston blood specimen is not excessive.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
This utility model comprises syringe needle 14, needle tubing 13, piston 11, piston rod 3, piston rod 3 is with valve head 8, connecting rod 4, core bar 2, presses hands 1 and form successively, valve head 8 contacts with the valve pocket 9 of convex tendon 7 with piston 11, and connecting rod 4 contacts with the groove 5 of the side final vacuum hole 6 with valve pocket 9; Be provided with heparin sheet 12 in the needle tubing 13.
Convex tendon 7 can be provided with 2-4, and is symmetrically distributed; The side groove 5 of connecting rod 4 can be provided with 2-3, also is symmetrically distributed.
The back segment of connecting rod 4 also can be cone-shaped.
Below in conjunction with a description of drawings course of action of the present utility model:
During use, by piston rod 3 by hands 1 piston 11 is pulled back into the precalculated position, blood collection needles 14 is thrust tremulous pulse, blood enters in the needle tubing 13; Simultaneously, the gas in the needle tubing 13 is discharged with the gap of the valve pocket 9 of piston 11, the side groove 5 of connecting rod 4 by the convex tendon 7 of valve head 8; After blood sampling volume reaches requirement, mention blood collection needles 14, piston rod 3 is promoted forward by hands 1 by piston rod 3, when promptly the valve head 8 of piston rod 3 was sealed front-seat pore 10, final vacuum hole 6 also was closed, and blood is not excessive; Continue to promote forward piston rod 3, the blood in the needle tubing 13 is discharged by the front end of needle tubing 13, for usefulness such as checks.
Claims (4)
1. a piston type arterial blood drawing device comprises syringe needle (14), needle tubing (13), piston (11), piston rod (3), piston rod (3) is with valve head (8), connecting rod (4), core bar (2), presses hands (1) and form successively, it is characterized in that valve head (8) contacts with the valve pocket (9) of the same piston of convex tendon (7) (11), connecting rod (4) contacts with the final vacuum hole (6) of the same valve pocket of groove (5) (9) of side; Be provided with heparin sheet (12) in the needle tubing (13).
2. a kind of piston type arterial blood drawing device according to claim 1 is characterized in that convex tendon 7 is provided with 2-4, and is symmetrically distributed.
3. a kind of piston type arterial blood drawing device according to claim 1 is characterized in that the side groove 5 of connecting rod 4 is provided with 2-3, is symmetrically distributed.
4. a kind of piston type arterial blood drawing device according to claim 1 is characterized in that the back segment of connecting rod 4 is cone-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320105215 CN2652328Y (en) | 2003-11-13 | 2003-11-13 | Riston type arterial hemostix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320105215 CN2652328Y (en) | 2003-11-13 | 2003-11-13 | Riston type arterial hemostix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2652328Y true CN2652328Y (en) | 2004-11-03 |
Family
ID=34341158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320105215 Expired - Fee Related CN2652328Y (en) | 2003-11-13 | 2003-11-13 | Riston type arterial hemostix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2652328Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813576A (en) * | 2019-03-25 | 2019-05-28 | 中国动物卫生与流行病学中心 | Prepared by a kind of perlsucht stimulation supernatant uses hemostix |
-
2003
- 2003-11-13 CN CN 200320105215 patent/CN2652328Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813576A (en) * | 2019-03-25 | 2019-05-28 | 中国动物卫生与流行病学中心 | Prepared by a kind of perlsucht stimulation supernatant uses hemostix |
| CN109813576B (en) * | 2019-03-25 | 2021-04-02 | 中国动物卫生与流行病学中心 | Blood collector for preparing bovine tuberculosis stimulating supernatant |
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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: 20041103 Termination date: 20111113 |