CN204671170U - Blood collecting pen - Google Patents

Abstract

Propose a kind of blood collecting pen, comprising: blood collecting pen inner core, blood taking needle remains on blood collecting pen inner core; The cap for brush, the cap for brush comprises: head cap; Connecting cylinder, head cap is pivotally connected on connecting cylinder relative to connecting cylinder; Cap for brush inner core, be arranged in the space of head cap and connecting cylinder composition, and based on the rotation of head cap, described cap for brush inner core moves along described longitudinal centre line while rotating, described cap for brush inner core has the blocking surface limiting the blood taking needle injection degree of depth, wherein: window connecting cylinder being provided through its sidewall; Cap for brush inner core is provided with multiple numeral, the plurality of numeral represents that the relative of blood taking needle stings out the degree of depth successively, based on the rotation of cap for brush inner core, each numeral can be observed successively via described window, thus achieves for relatively stinging out comparatively clearly indicating of the degree of depth.

Description

Lancet

technical field

Embodiments of the utility model relate to the field of medical devices, in particular to a blood collection pen.

technical background

The blood collection pen in the prior art includes an inner core of the blood collection pen on which the blood collection needle is held; and a pen cap. The pen cap includes: a head cap; a connecting barrel, the head cap is rotatably connected to the connecting barrel relative to the connecting barrel; the pen cap inner core is installed in the space formed by the head cap and the connecting barrel, and based on the rotation of the head cap, the pen cap The inner core moves along the longitudinal centerline while rotating, and the cap inner core has a blocking surface that limits the shooting depth of the blood collection needle.

The relative piercing depth of the blood collection needle of the blood collection pen needs to be adjusted, which is generally indicated by the indicator marks and scales on the head cap and the outside of the connecting cylinder. However, it may be inconvenient for the user to see the scales when the scales are dense and the user has poor eyesight.

In addition, with the blood collection pen in the prior art, the user sometimes cannot conveniently determine whether the blood collection pen has been used or is in a state of waiting for blood collection.

Utility model content

An object of the present utility model is to provide an improved blood sampling pen, which can clearly show the indication of blood sampling depth.

Another object of the present utility model is to provide an improved blood collection pen, which can clearly show whether the blood collection pen has been used or is in a state of waiting for blood collection.

According to an embodiment of the present invention, a blood collection pen is proposed, which defines a longitudinal centerline. The blood collection pen includes: an inner core of the blood collection pen, on which the blood collection needle is held; a pen cap, and the pen cap includes: a head cap; The head cap is rotatably connected to the connecting barrel relative to the connecting barrel; the pen cap inner core is installed in the space formed by the head cap and the connecting barrel, and based on the rotation of the head cap, the pen cap inner core rotates along the The longitudinal center line moves, the inner core of the pen cap has a blocking surface that limits the injection depth of the blood collection needle, wherein: the connecting cylinder is provided with a window passing through its side wall; the inner core of the pen cap is provided with a plurality of numbers, The multiple numbers sequentially indicate the relative penetration depth of the blood collection needle, and each number can be observed sequentially through the window based on the rotation of the inner core of the cap.

Optionally, the plurality of numbers are arranged circumferentially on the outer wall of the cap inner core and are sequentially staggered by a predetermined distance along a direction where the longitudinal centerline is located.

Optionally, the inner core of the pen cap is made of transparent material.

Optionally, there is an indication area on the outside of the side wall of the inner core of the blood collection pen near the end of the pen cap; when the blood collection needle is not pierced, the indication area can be observed from the window through the transparent pen cap inner core, Or after the lancet is punctured, the indication area can be observed from the window through the transparent inner core of the pen cap.

Optionally, the first color area constitutes the indication area, and the color of the first color area is different from the color of other parts of the inner core of the lancing pen.

Optionally, the indication area includes characters or marks arranged outside the side wall of the inner core of the lancing pen.

Optionally, there is an indication area outside the side wall of the inner core of the blood collection pen near the end of the pen cap; another window is provided on the side wall of the connecting cylinder at a position different from the window; when the blood collection needle does not pierce The indication area can be observed from the additional window through the transparent pen cap inner core when it is pulled out, or after the blood collection needle is pierced, the indication area can be observed through the transparent pen cap inner core from the additional window observed.

Optionally, the first color area constitutes the indication area, and the color of the first color area is different from the color of other parts of the inner core of the lancing pen.

Optionally, the indication area includes characters or marks arranged outside the side wall of the inner core of the lancing pen.

According to another embodiment of the present invention, a blood collection pen is proposed, which defines a longitudinal centerline, and the blood collection pen includes: an inner core of the blood collection pen, on which the blood collection needle is held; a pen cap, and the pen cap includes: a head cap the connecting cylinder, the head cap is rotatably connected to the connecting cylinder relative to the connecting cylinder; the pen cap inner core is installed in the space formed by the head cap and the connecting cylinder, and based on the rotation of the head cap, the pen cap inner core rotates at the same time Move along the longitudinal centerline, wherein: the connecting cylinder is provided with a window passing through its side wall; the inner core of the pen cap is made of transparent material; the side wall of the end of the blood collection pen inner core close to the cap There is an indication area on the outside; when the blood collection needle is not pierced, the indication area can be observed from the window through the transparent pen cap inner core, or after the blood collection needle is pierced, the indication area can be seen through the transparent pen cap inner core can be observed from the window.

In the utility model, by setting a window on the connecting cylinder and a plurality of numbers indicating the relative piercing depth on the inner core of the pen cap, and the numbers can be seen through the windows in turn, thereby realizing a relatively clear understanding of the relative piercing depth instruct.

In the utility model, by setting a window on the connecting cylinder, setting the inner core of the pen cap to be transparent, and setting an indication area outside the side wall near the end of the pen cap on the inner core of the blood sampling pen, it can help to determine whether the blood sampling pen has executed Blood collection operation or blood collection needle pricking operation.

Description of drawings

Fig. 1 is a state diagram of a blood collection pen in an embodiment of the present invention.

Fig. 2 is a state diagram of the blood collection pen in Fig. 1 after blood collection is completed.

Fig. 3 is a schematic diagram of the head cap of the pen cap of the blood collection pen in Fig. 1;

Fig. 4 is a schematic diagram of the inner core of the pen cap of the blood collection pen in Fig. 1;

Fig. 5 is a schematic diagram of an angle of the pen cap inner core in Fig. 4;

Fig. 6 is a schematic diagram of the connecting cylinder of the pen cap of the blood collection pen in Fig. 1;

Figure 7 shows a schematic diagram of the inner core of the pen cap being arranged on the connecting barrel;

Fig. 8 shows a schematic diagram of the movement of the inner core of the pen cap along the axial or longitudinal axis of the blood collection pen;

Fig. 9 shows a schematic diagram of the inner core of the blood collection pen according to an embodiment of the present invention;

Fig. 10 is a partially enlarged schematic diagram of the inner core of the blood collection pen in Fig. 9;

Fig. 11 is a schematic diagram of a guide sleeve of a blood collection pen according to an embodiment of the present invention:

Fig. 12 is a schematic diagram of placing the inner core of the blood collection pen in Fig. 9 in the guide sleeve in Fig. 11;

Fig. 13 is a schematic diagram of the firing key of the blood collection pen according to an embodiment of the present invention.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following descriptions of the embodiments of the utility model with reference to the accompanying drawings are intended to explain the overall utility model concept of the utility model, and should not be construed as a limitation of the utility model.

As shown in Figure 1-13, the blood collection pen according to one embodiment of the present invention includes:

The inner core 10 of the blood collection pen, the blood collection needle (not shown) is kept on the inner core of the blood collection pen, in FIG. 9, it is installed on the left side of the inner core 10 of the blood collection pen;

The pen cap, the pen cap includes: a head cap 20; a connecting barrel 30, the head cap 20 is rotatably connected to the connecting barrel 30 relative to the connecting barrel 30; the pen cap inner core 40 is installed in the space formed by the head cap 20 and the connecting barrel 30, And based on the rotation of the head cap 20, the pen cap inner core 40, for example, rotates as shown in FIG. 7 and at the same time moves along the direction of the longitudinal centerline of the blood collection pen, for example, as shown in FIG. The blocking surface 41,

in:

The connecting cylinder 30 is provided with a window 31 passing through its side wall;

The pen cap inner core 40 is provided with a plurality of numbers. In FIG. Rotation, each number can be observed through the window 31 in turn.

It should be pointed out that when the numbers represent relative pricking depths, they represent different degrees of pricking depths.

As shown in FIG. 7 , for example, after the head cap 20 is rotated, the number 3 on the pen cap core 40 is exposed from the window 31 .

The following is a brief description of the relative stabbing depth adjustment operation.

As shown in Figure 3, an annular groove 21 is arranged in the head cap 20, and as shown in Figure 6, one end of the connecting cylinder 30 is provided with a rib 32, and the rib 32 cooperates with the annular groove 21, so that the head cap 20 It is rotatably fitted on the connection cylinder 30 .

As shown in FIG. 3 , the head cap 20 is set on the convex rib 22 (only one is shown in the figure), and the inner core 40 of the pen cap is provided with a groove 42 (only one is shown in the figure). When assembled into the head cap 20, the convex ribs 22 cooperate with the grooves 42 respectively, so that when the head cap 20 rotates, the pen cap core 40 also rotates.

As shown in Figure 5, the pen cap inner core 40 is provided with an obliquely arranged guide groove 43, as shown in Figure 6, the inner wall of the connecting cylinder 30 is provided with, for example, a circular protrusion 33, and the pen cap inner core 40 is arranged on the connecting cylinder 30, as shown in FIG. 8, the protrusion 33 is located in the guide groove 43. The width of the guide groove 43 is slightly larger than the diameter of the protrusion 33 , so that two side walls of the guide groove 43 contact the protrusion 33 substantially simultaneously. In this way, when the pen cap inner core 40 rotates, since the position of the protrusion 33 remains unchanged, the protrusion 33 will exert a force on the upper side wall or the lower side wall of the guide groove 43 in FIG. Move in the up and down direction in order to adjust the position of the blocking surface 41 and adjust the relative thrusting depth.

It should be pointed out that the matching structure between the head cap and the inner core of the pen cap to realize the rotation of the inner core of the pen cap with the head cap is not limited to the structure proposed in the embodiment, but any other known structure can be adopted. The matching structure is not limited.

It should be pointed out that the matching structure between the connecting cylinder and the inner core of the cap to realize the axial movement of the inner core of the cap is not limited to the structure proposed in the embodiment, but any other known structure can be adopted. The matching structure is also not limited.

It should also be pointed out that the matching structure between the connecting cylinder and the head cap to realize the rotation of the head cap relative to the connecting cylinder is not limited to the structure proposed in the embodiment, but any other known structure can be adopted. The matching structure is also not limited.

As shown in FIG. 4 , the plurality of numbers are arranged circumferentially on the outer wall of the inner core of the cap and are sequentially staggered by a predetermined distance along a direction where the longitudinal centerline is located. In this way, the size of the window 31 can be designed to only display the size of a number.

Although not shown, multiple numbers may also be arranged circumferentially without being staggered in the direction of the longitudinal axis. Thus, the size of the window 31 needs to be large enough so that when the cap inner core is displaced axially, the numbers are still clearly visible in the window.

The cap inner core 40 can be made of transparent material.

As shown in FIG. 9 , there is an indication area 11 on the outside of the side wall of the inner core 10 of the blood collection pen near the end of the pen cap. When the blood collection needle is not pierced, the indication area 11 can be observed through the window 31 through the transparent pen cap inner core 40, or after the blood collection needle is pierced, the indication area 11 can be observed through the transparent pen cap inner core through the window 31 .

For example, in Fig. 1, when the blood sampling operation has not been performed, the color of the indication area 11 is shown in the window 31, while in Fig. The other areas of the lancing device inner core 10 are shown in the window 31 .

The indication area 11 may be expressed in a color different from that of other parts of the inner core 10 of the lancing device.

Optionally, although not shown, the indication area may also use characters or marks, such as O, X and other characters, or *, - and other marks.

In the illustrated embodiment, only one window is provided on the connecting cylinder, through which the color of the inner core 10 of the blood collection pen and the number on the inner core of the cap can be seen.

However, although not shown, another window may also be provided on the connecting barrel, and this window is dedicated to displaying the above-mentioned indication area.

The piercing operation of the blood collection needle will be described below.

As shown in FIGS. 9-10 , the inner core 10 of the blood collection pen is provided with a first joint surface 12 , and the first joint surface is provided on the end surface of the elastic arm 13 . As shown in FIG. 11 , the guide sleeve 50 is provided with a second joint surface 51 , and the second joint surface is provided on a side wall of an opening 52 on the guide sleeve 50 . As shown in FIG. 12 , when the blood collection needle is not fired, the first joint surface 12 is engaged with the second joint surface 51 , and the engagement prevents the inner core 10 of the blood collection pen from moving toward the left in FIG. 12 . At this time, the indication area 11 on the inner core 10 of the blood collection pen in FIG. 9 can be seen from the window as shown in FIG. 1 .

And once the firing key 60 in Fig. 13 is pressed, so that the protrusion 61 of the firing key 60 presses the elastic arm 13, the engagement between the first joint surface 12 and the second joint surface 51 is disengaged, so that the inner core 10 of the blood collection pen is in the spring It is ejected under the action of elastic force. At this time, the indication area 11 on the inner core 10 of the blood collection pen in FIG. 9 cannot be seen from the window as shown in FIG. 2 .

It should be pointed out that the cooperation structure between the inner core of the blood collection pen and the guide sleeve is not limited to the structure proposed in the embodiment, but any other known structure can be adopted, and the present invention does not limit the cooperation structure.

The utility model also provides a blood collection pen that only indicates to the user whether the blood collection operation has been performed, and the blood collection pen includes:

The inner core of the blood collection pen, and the blood collection needle is kept on the inner core of the blood collection pen;

The pen cap, the pen cap includes: head cap; connecting cylinder, the head cap is rotatably connected to the connecting cylinder relative to the connecting cylinder; the pen cap inner core is installed in the space formed by the head cap and the connecting cylinder, and based on the rotation of the head cap, the The inner core of the pen cap rotates while moving along the longitudinal centerline,

in:

The connecting cylinder is provided with a window passing through its side wall;

The inner core of the pen cap is made of transparent material;

There is an indication area on the outside of the side wall of the inner core of the blood collection pen near the end of the pen cap;

When the blood collection needle is not pierced, the indication area can be observed from the window through the transparent pen cap inner core, or after the blood collection needle is pierced, the indication area can be seen from the window through the transparent pen cap inner core be observed.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that these embodiments can be changed without departing from the principle and spirit of the present invention. The scope is defined by the claims appended hereto and their equivalents.

Claims (10)

1. a blood collecting pen, limit longitudinal centre line, described blood collecting pen comprises:

Blood collecting pen inner core, blood taking needle remains on blood collecting pen inner core;

The cap for brush, the cap for brush comprises: head cap; Connecting cylinder, head cap is pivotally connected on connecting cylinder relative to connecting cylinder; Cap for brush inner core, is arranged in the space of head cap and connecting cylinder composition, and based on the rotation of head cap, described cap for brush inner core moves along described longitudinal centre line while rotating, and described cap for brush inner core has the blocking surface limiting the blood taking needle injection degree of depth,

It is characterized in that:

Described connecting cylinder is provided through the window of its sidewall;

Described cap for brush inner core is provided with multiple numeral, and the plurality of numeral represents that the relative of blood taking needle stings out the degree of depth successively, and based on the rotation of cap for brush inner core, each numeral can be observed successively via described window.

2. blood collecting pen according to claim 1, is characterized in that:

Described multiple numeral circumferentially and along the direction at described longitudinal centre line place staggers successively preset distance on the lateral wall of cap for brush inner core.

3. blood collecting pen according to claim 1 and 2, is characterized in that:

Described cap for brush inner core is made up of transparent material.

4. blood collecting pen according to claim 3, is characterized in that:

The sidewall outside of one end of the close cap for brush of described blood collecting pen inner core has indicating area;

When blood taking needle does not sting out, described indicating area can be observed from described window by transparent cap for brush inner core, or after blood-taking needle goes out, described indicating area can be observed from described window by transparent cap for brush inner core.

5. blood collecting pen according to claim 4, is characterized in that:

First color region forms described indicating area, and the color of this first color region is different from the color of other parts of blood collecting pen inner core.

6. blood collecting pen according to claim 4, is characterized in that:

Described indicating area comprises character or the labelling of the sidewall outside being arranged on blood collecting pen inner core.

7. blood collecting pen according to claim 3, is characterized in that:

The sidewall outside of one end of the close cap for brush of described blood collecting pen inner core has indicating area;

The sidewall of described connecting cylinder is provided with other window in the position being different from described window:

When blood taking needle does not sting out, described indicating area can be observed from described other window by transparent cap for brush inner core, or after blood-taking needle goes out, described indicating area can be observed from described other window by transparent cap for brush inner core.

8. blood collecting pen according to claim 7, is characterized in that:

First color region forms described indicating area, and the color of this first color region is different from the color of other parts of blood collecting pen inner core.

9. blood collecting pen according to claim 7, is characterized in that:

Described indicating area comprises character or the labelling of the sidewall outside being arranged on blood collecting pen inner core.

10. a blood collecting pen, limit longitudinal centre line, described blood collecting pen comprises:

Blood collecting pen inner core, blood taking needle remains on blood collecting pen inner core;

The cap for brush, the cap for brush comprises: head cap; Connecting cylinder, head cap is pivotally connected on connecting cylinder relative to connecting cylinder; Cap for brush inner core, is arranged in the space of head cap and connecting cylinder composition, and based on the rotation of head cap, described cap for brush inner core moves along described longitudinal centre line while rotating,

It is characterized in that:

Described connecting cylinder is provided through the window of its sidewall;

Described cap for brush inner core is made up of transparent material;

The sidewall outside of one end of the close cap for brush of described blood collecting pen inner core has indicating area;

When blood taking needle does not sting out, described indicating area can be observed from described window by transparent cap for brush inner core, or after blood-taking needle goes out, described indicating area can be observed from described window by transparent cap for brush inner core.