Detachable cap-type adjusting head of lancing device

Abstract

A detachable cap-type adjusting head of a lancing device comprises an inner adjusting core with a head in a sleeve structure. An adjusting cap similar to an outer sleeve structure is sleeved on the sleeve structure. The outer sleeve is connected with the sleeve through a spiral structure and a rotary positioning structure. The spiral structure is composed of a spiral groove and a protrusion matching with each other. One of the spiral groove and the protrusion is disposed on the inner edge of the outer sleeve. The other of the spiral groove and the protrusion is disposed on the outer edge of the sleeve. The detachable cap-type adjusting head is characterized in that a straight groove parallel with an axis of the adjusting head is disposed corresponding to the spiral groove, and one end of the straight groove is communicated with the spiral groove. When the protrusion is located at the joint of the spiral groove and the straight groove, the protrusion can slide along the straight groove by axially pulling the adjusting cap, the adjusting cap can be pulled off to clean residual blood inside the adjusting head, and the adjusting cap can be fitted on after cleaning. Accordingly, the adjusting cap at the front of the adjusting head is attachable.

Description

technical field

[0001] The invention relates to a needle depth adjustment head of a medical blood collection pen, in particular to a detachable cap type adjustment head. The adjusting cap of the adjusting head can be detached so as to clean up the blood remaining inside the adjusting head. Background technique

[0002] The blood collection pen is a medical blood collection device. Usually, the blood collection pen is used together with the blood collection needle. The blood collection needle is equivalent to a bullet. For safety, it is a one-time use product, while the blood collection pen is equivalent to a pistol and can be reused many times.

[0003] The adjustment head is a needle depth adjustment structure on the head of the blood collection pen. When in use, it can be rotated to control the depth of the needle for different blood collection objects (such as adults and children), so as to adapt to different objects and achieve the best blood collection effect. Chinese ...

Examples

Embodiment

[0023] Example: a detachable cap-type adjusting head of a blood collection pen

[0024] like Figure 1~8 As shown, the adjustment head is composed of adjustment cap 2, elastic ring 3, adjustment inner core 1 and adjustment ring 4 (see figure 2 ). Wherein, the head of the adjustment inner core 1 is a sleeve structure, and the front end of the sleeve is provided with an A outlet pinhole 5 (see Figure 4 and Figure 6 ), set an adjusting cap 2 on the sleeve (see Figure 4 ), the adjustment cap 2 is a sleeve structure relative to the sleeve of the adjustment inner core 1, and the front end of the sleeve is provided with a B-out pinhole 6 corresponding to the A-out pinhole 5, and the B-out pinhole 6 is located at the A-out pinhole 5 in front of (the front refers to the direction pointed by the needle tip of the disposable blood collection needle 11, see Figure 4 ). The outer sleeve of the adjusting cap 2 is connected to the casing of the adjusting inner core 1 through a hel...

technical field

[0001] The invention relates to a needle depth adjustment head of a medical blood collection pen, in particular to a detachable cap type adjustment head. The adjusting cap of the adjusting head can be detached so as to clean up the blood remaining inside the adjusting head. Background technique

[0002] The blood collection pen is a medical blood collection device. Usually, the blood collection pen is used together with the blood collection needle. The blood collection needle is equivalent to a bullet. For safety, it is a one-time use product, while the blood collection pen is equivalent to a pistol and can be reused many times.

[0003] The adjustment head is a needle depth adjustment structure on the head of the blood collection pen. When in use, it can be rotated to control the depth of the needle for different blood collection objects (such as adults and children), so as to adapt to different objects and achieve the best blood collection effect. Chinese ...

Examples

Embodiment

[0023] Example: a detachable cap-type adjusting head of a blood collection pen

[0024] like Figure 1~8 As shown, the adjustment head is composed of adjustment cap 2, elastic ring 3, adjustment inner core 1 and adjustment ring 4 (see figure 2 ). Wherein, the head of the adjustment inner core 1 is a sleeve structure, and the front end of the sleeve is provided with an A outlet pinhole 5 (see Figure 4 and Figure 6 ), set an adjusting cap 2 on the sleeve (see Figure 4 ), the adjustment cap 2 is a sleeve structure relative to the sleeve of the adjustment inner core 1, and the front end of the sleeve is provided with a B-out pinhole 6 corresponding to the A-out pinhole 5, and the B-out pinhole 6 is located at the A-out pinhole 5 in front of (the front refers to the direction pointed by the needle tip of the disposable blood collection needle 11, see Figure 4 ). The outer sleeve of the adjusting cap 2 is connected to the casing of the adjusting inner core 1 through a hel...

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