A kind of hematology bone marrow puncture needle

Abstract

The invention belongs to the technical field of puncture needles, and especially relates a department bone marrow puncture needle, which comprises a needle handle and a needle body below the needle handle, and a connecting block is integrally formed on the lower surface of the needle handle. The inside of the connecting block is screwed by a sleeve, a connecting rod is welded at two sides of the connecting block, a positioning ring is arranged outside the needle body, and the inner surface of the positioning ring is in contact with the surface of the needle body. a rotating block is welded attwo sides of the positioning ring, and a linkage rod is arranged between the rotating block and the connecting rod. During usage, in the process of using the needle handle and the needle body to puncture the patient, the positioning ring is arranged outside the needle body, when the needle body is inserted into the human body, the positioning ring gradually moves up under the blockage of the humanskin surface, during the process, the inner surface of the positioning ring is in contact with the surface of the needle body, and the positioning ring has a certain limit effect on the position of the needle body that is about to enter the interior of the patient.

Description

technical field [0001] The invention belongs to the technical field of puncture needles, in particular to a hematology bone marrow puncture needle. Background technique [0002] The Department of Hematology is a branch of internal medicine that mainly treats the problems of the hematopoietic system. The Department of Hematology can also provide professional services and carry out a number of technical tests for many non-blood diseases. Puncture is a common diagnostic technique for collecting bone marrow fluid. Clinically, bone marrow aspiration is also commonly used for blood cell morphology examination, and can also be used for hematopoietic stem cell collection, culture, cytogenetic analysis, and pathogenic biology inspection. During this process, Generally, a hematology bone marrow puncture needle is used to carry out the corresponding surgical operation. However, in the process of using the existing hematology bone marrow puncture needle, due to the long length of the ne...

AI Technical Summary

Problems solved by technology

[0002] The Department of Hematology is a branch of internal medicine that mainly treats the problems of the hematopoietic system. The Department of Hematology can also provide professional services and carry out a number of technical tests for many non-blood diseases. Puncture is a common diagnostic technique for collecting bone marrow fluid. Clinically, bone marrow aspiration is also commonly used for blood cell morphology examination, and can also be used for hematopoietic stem cell collection, culture, cytogenetic analysis, and pathogenic biology inspection. During this process, Generally, a hematology bone marrow puncture needle is used to carry out the corresponding surgical operation. However, in the process of using the existing hematology bone marrow puncture needle, due to the long length of the needle itself, it passes through the patient's epidermis to the internal bone marrow. During the puncture process, there is no good stable member for the needle body, so that the needle body of the bone marrow puncture needle in the department of hematology does not have good stability when it is used. To a certain extent, the operation efficiency is reduced, and the existing needle body and the needle handle are mostly integrated components, without more adjustability, and it is impossible to make certain adjustments to the needle body according to the actual situation of the patient. The adjustment of the existing hematology bone marrow puncture needle has certain limitations in use

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