A medical parathyroid tissue syringe

Abstract

The present invention relates to the technical field of medical equipment, and it relates to a medical parathyroid tissue syringe, which includes a syringe, a piston, a motor, a blade and a driving mechanism; The inner wall is circumferentially sealed, and the push-pull rod is used to drive the plug body to move axially along the inner wall of the injection barrel; one end of the plug body is provided with a receiving groove; the bottom surface of the receiving groove is provided with a through hole; the motor includes a body and a On the motor shaft, one end of the motor shaft is used to pass through the through hole and connect with the blade; the driving mechanism is used to drive the body to move relative to the plug body, so as to drive the blade to extend or retract into the accommodation groove; and when retracting into the accommodation groove , the blade is in sealing fit with the groove wall of the accommodating groove in the circumferential direction. According to the technical solution of the present invention, when injecting the parathyroid homogenate, the piston can be pushed to the bottom of the injection cylinder, thereby reducing the residue of the parathyroid homogenate in the injection cylinder.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical parathyroid tissue syringe. Background technique [0002] The parathyroid glands are located near the thyroid gland, generally there are two pairs of upper and lower, located behind the lateral lobes of the thyroid gland, sometimes hidden in the thyroid parenchyma, which can secrete parathyroid hormone. Among them, the abnormal secretion of parathyroid hormone will cause the abnormal ratio of calcium and phosphorus in the blood. Therefore, the determination of parathyroid hormone has important clinical value for early prediction of the occurrence of calcemia after total thyroidectomy. In previous experiments or detection steps, it was often necessary to use a homogenizer to crush the parathyroid glands. [0003] Such as figure 1 As shown, there is an existing tissue breaker, which includes a syringe 10 and a breaker 20. The syringe 10 includes a syringe 11 and...

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Problems solved by technology

[0004] The above-mentioned tissue breaker has at least the following defects in use: since the blade 23 is arranged in the injection chamber, the blade 23 will hinder the advancement of the rubber stopper 12, so that the rubber stopper 12 cannot be pushed to the bottom of the injection cylinder 11, resulting in partial injection during injection. The crushed parathyroid homogenate will remain in the syringe 11, which will affect the measurement accuracy of the experiment, so it is urgent to improve this situation

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