CN205458717U - Disposable vacuum hemostix that does not have collection needle - Google Patents

Abstract

The disposable vacuum blood collection device without collection needle provided by the utility model includes two types, type A and type B, which are respectively composed of a connecting tube sheath, a collecting connecting tube, a fixed ring, a needle seat, a puncture needle, a capsule membrane cover, and a test tube cover. barrel composition. The utility model has a reasonable design, changes the collection needle into a collection connection tube, improves the nurses' skills in the blood collection process, simplifies the work flow, improves the clinical utilization rate of vacuum blood collection, and avoids blood loss and secondary pollution in the blood collection process , reduce the suffering of patients, and improve the accuracy and safety of blood collection. The destruction of red blood cells can be avoided during blood collection, the quality of blood collection can be guaranteed, and the occurrence of needle stick injuries can be completely avoided. In a word, the use of the utility model vacuum blood collection device has more advantages for patients with indwelling catheters and hemodialysis patients, which not only reduces the pain of patients, but also ensures the quality of blood collection, and simplifies the operation process of nurses.

Description

Disposable vacuum blood collection device without collection needle

technical field

The utility model belongs to the class of medical instruments and relates to a disposable vacuum blood sampling device without a collection needle.

Background technique

Any blood test must first collect a blood sample and then test it. At present, the clinical blood collection method in the hospital has two disposable products, a syringe and a vacuum blood collection needle, for blood collection. After using a syringe to collect blood, the blood needs to be divided into test tubes, which is very inconvenient and may cause damage to red blood cells and increase the chance of secondary pollution. Therefore, this method of blood collection is basically not used in clinical practice; blood collection can be done with a vacuum blood collection needle. It is more convenient to directly pierce the test tube from the puncture needle, especially in collecting multiple tubes of blood, so this method is widely used.

The disadvantages of the current one-time use of venous blood sample collection needles are: the clinical use is relatively limited, and the collection needle can only be directly inserted into the patient's blood vessel for blood collection. Blood collection before treatment, if use vacuum blood collection needle just can not take blood from catheter or internal fistula puncture needle, need find another blood vessel to collect blood, also just increase patient's misery.

Contents of the invention

The purpose of this utility model is to provide a simple and safe one-time needle-free vacuum blood collection device, which mainly solves the limitations of clinical use in the prior art and can not alleviate the pain of patients with vascular access and the needle-stick injuries of nurses, etc. The problem.

The disposable vacuum blood sampling device provided by the utility model includes two types: A type and B type.

Type A vacuum blood collection device without collection needle, which is composed of connecting tube sheath, collection connecting tube, fixed ring, needle seat, puncture needle, capsule membrane cover, and test tube sleeve. The capsule membrane cover is placed outside the puncture needle and inserted into the test tube sleeve The test tube sleeve is used as a needle holder. The tail end of the puncture needle is connected to the needle seat, and passes through the needle seat to connect with the collection connection tube. The fixing ring is placed outside the collection connection tube. The opening diameter of the sheath is larger than the diameter of the test tube sleeve, and it plays a role of protection and sealing after being fitted together. After the whole is sealed, it is sterilized with ethylene oxide.

Type B vacuum blood collection device without collection needle is composed of B-type connecting tube sheath, B-type collection connecting tube, B-type fixing ring, B-type needle seat, B-type puncture needle, B-type capsule membrane envelope, and puncture needle sheath. The B-type capsule membrane sleeve is placed outside the B-type puncture needle. The end of the B-type puncture needle is connected to the B-type needle seat, and passes through the B-type needle seat to connect with the B-type collection connection tube. The B-type fixed ring is placed on the B-type collection connection tube. In addition, the B-type fixing ring is threaded to play a fastening role. The opening diameter of the B-type connecting tube sheath is larger than the diameter of the puncture needle sheath, and it plays a role of protection and sealing after being fitted together. After the whole is sealed, it is sterilized with ethylene oxide.

The beneficial effects of the utility model are: (1) the collection needle is changed to a collection connection tube, which improves the nurse's technique in the blood collection process, simplifies the work flow, and improves the clinical utilization rate of vacuum blood collection. (2) A threaded fixing ring outside the collection connection tube is added to avoid blood loss and secondary pollution caused by the disconnection of the connection during the blood collection process. (3) The design of the utility model is reasonable, and the collection needle is changed into a collection connection pipe, and the threaded fixing ring outside the collection connection pipe, the collection connection pipe sheath and the test tube sleeve are added. Hemodialysis patients can reduce patient suffering. (4) The utility model draws blood directly into the test tube when the hemodialysis patient is on the machine, which improves the accuracy of the nurse's blood collection, thereby making it easier and safer. (5) The utility model avoids the destruction of red blood cells during blood collection and ensures the quality of blood collection. (6) The utility model is a vacuum blood collection device without a collection needle with a needle holder, which can completely avoid the occurrence of needle stick injuries. In a word, the use of the utility model vacuum blood collection device has more advantages for patients with indwelling catheters and hemodialysis patients, which not only reduces the pain of patients, but also ensures the quality of blood collection, and simplifies the operation process of nurses.

Description of drawings

Fig. 1 is a schematic diagram of the structure of a type A disposable vacuum blood collection device without a collection needle.

Fig. 2 is a schematic structural diagram of a B-type disposable vacuum blood collection device without a collection needle.

detailed description

The utility model is further described in conjunction with the accompanying drawings and embodiments.

Example 1

Referring to Fig. 1, the utility model A-type disposable vacuum blood collection device without collection needle is composed of a connecting tube sheath 1, a collection connecting tube 2, a fixed ring 3, a needle seat 4, a puncture needle 5, a capsule membrane envelope 6, and a test tube sleeve 7, the capsule membrane cover 6 is set outside the puncture needle 5, inserted into the test tube sleeve 7, the test tube sleeve 7 is used as a needle holder, the tail end of the puncture needle 5 is connected to the needle base 4, and passes through the needle base 4 and the collection connection tube 2 Connection, the fixed ring 3 is set outside the collection connecting pipe 2, and the fixed ring 3 is threaded to play a fastening role. The opening diameter of the connecting tube sheath 1 is larger than the diameter of the test tube sleeve 7, and it plays a role of protection and sealing after being fitted together. After the whole is sealed, it is sterilized with ethylene oxide.

Example 2 Use of Type A Disposable Vacuum Blood Collector Without Collection Needle

When using a type A disposable vacuum blood collection device without collection needle for hemodialysis patients, before the start of hemodialysis treatment, the nurse must first puncture the arteriovenous fistula to establish vascular access or use a deep vein indwelling catheter, if the patient with arteriovenous fistula punctures blood After the puncture is successful, remove the connecting tube sheath 1 of the A-type disposable vacuum blood collection device without collection needle, then connect the collection connecting tube 2 with the puncture needle 5 and fix it with the fixing ring 3, and then open the arteriovenous fistula The clip of the puncture needle, push the test tube containing blood into the end of the test tube sleeve 7, puncture the capsule membrane 6 outside the puncture needle for blood collection, pull out the test tube when the blood flow stops, and carry out the other test tubes according to the previous steps as required .

Because the inside of the capsule membrane is a puncture needle, when the test tube is pushed into the puncture needle, the capsule membrane will be punctured, blood will flow into the test tube, and when the test tube is pulled out, the capsule membrane will return to wrap around the puncture needle. It not only reduces the pain of the patient, but also ensures the quality of blood collection, and simplifies the operation process of the nurse.

Example 3

Referring to Fig. 2, the utility model B-type disposable vacuum blood collection device without collection needle is composed of B-type connecting tube sheath 8, B-type collecting connecting tube 9, B-type fixing ring 10, B-type needle holder 11, and B-type puncture needle 12. A type B capsule membrane cover 13 and a puncture needle sheath 14 are formed. The B type capsule membrane cover 13 is set outside the B type puncture needle 12. The tail end of the B type puncture needle 12 is connected to the B type needle seat 11 and passes through the B type needle. The needle seat 11 is connected to the B-type collection connecting pipe 9, and the B-type fixing ring 10 is set outside the B-type collection connecting pipe 9. The B-type fixing ring 10 is threaded to play a fastening role. The opening of the B-type connecting pipe sheath 8 The diameter is greater than the diameter of the puncture needle sheath 14, and plays a role of protection and sealing after sheathing. After the whole is sealed, it is sterilized with ethylene oxide.

Example 4 Use of Type B Disposable Vacuum Blood Collector Without Collection Needle

When using the B-type disposable vacuum blood collection device without collection needle of the utility model for hemodialysis patients, before the hemodialysis treatment starts, the nurse must first puncture the arteriovenous fistula to establish a vascular access or use a deep vein indwelling catheter, if the arteriovenous fistula puncture After taking blood from the patient, after the puncture is successful, remove the B-type puncture needle protective cover 14, install the original vacuum blood collection device with a needle holder, and then remove the B-type connecting tube sheath 8, and connect the B-type collection connecting tube 9 with the The internal fistula puncture needle is connected and the B-type fixing ring 10 is screwed and fixed, then the clip of the internal fistula puncture needle is opened, the test tube for containing blood is pushed into the end of the needle holder, and the B-type puncture needle outside the B-type puncture needle 12 is punctured. Capsule membrane envelope 14 carries out blood sampling, pulls out test tube when blood flow stops, and other test tubes are carried out according to previous steps as required.

Because the inside of the capsule membrane is a puncture needle, when the test tube is pushed into the puncture needle, the capsule membrane will be punctured, blood will flow into the test tube, and when the test tube is pulled out, the capsule membrane will return to wrap around the puncture needle. It not only reduces the pain of the patient, but also ensures the quality of blood collection, and simplifies the operation process of the nurse.

Claims (2)

1. the disposable vacuum blood collector without gathering pin, it is characterised in that be made up of A type and Type B, wherein A type is without gathering pin Vacuum blood collector, by connecting tube sheath (1), gather connecting tube (2), ring for fixing (3), needle stand (4), puncture needle (5), Capsule membrane big envelope (6), test tube sleeve (7) is constituted, and capsule membrane big envelope (6) is placed on puncture needle (5) outward, inserts test tube sleeve (7), test tube sleeve (7) is as needle holder, and puncture needle (5) tail end connects needle stand (4), and through needle stand (4) and collection Connecting tube (2) connects, and ring for fixing (3) is placed on collection connecting tube (2) outward, and ring for fixing (3) is threaded, connecting tube sheath (1) opening diameter is more than test tube sleeve (7) diameter；Type B without gather pin vacuum blood collector, by Type B connecting tube sheath (8), Type B gathers connecting tube (9), Type B ring for fixing (10), Type B needle stand (11), Type B puncture needle (12), Type B capsule membrane big envelope (13), puncture needle sheath (14) constitute, Type B capsule membrane big envelope (13) is placed on Type B puncture needle (12) outward, Type B puncture Pin (12) tail end connects Type B needle stand (11), and is connected through Type B needle stand (11) with Type B collection connecting tube (9), B Type ring for fixing (10) is placed on Type B and gathers connecting tube (9) outward, and Type B ring for fixing (10) is threaded, Type B connecting tube sheath (8) Opening diameter more than puncture needle sheath (14) diameter.

The disposable vacuum blood collector without gathering pin the most according to claim 1, it is characterised in that A type and Type B are overall Ethylene oxide sterilizing is used after sealing.