TW201515637A - Disposable blood collecting lancet structure - Google Patents

Abstract

The present invention relates to a disposable blood collecting lancet structure mainly having a housing, a push button, an elastic member, a lancet, and a protective cover. The opening of the housing and the internal structure of the stopping part of the protective cover are used as a protective structure to make the lancet suspended in the housing. Said structure can suspend a positioning device of the lancet without contact with at least one positioning groove in the housing, such that the disposable blood collecting lancet structure of this invention can be prevented from triggering or structural damage due to accident. Before the protective cover has been removed, even the push button is pressed, the lancet can still remain not triggered so as to protect users against accidental piercing and preventing the damage of the disposable blood collecting lancet structure.

Description

Disposable lancet structure

The invention relates to a blood collection needle, in particular to a disposable blood collection needle structure.

With the rapid development of science and technology, people have higher requirements for the efficacy of various kinds of things. They are no longer required to be used as they used to be. With the humanized thinking mode, medical instruments have always been one of the important inventions. There are many different medical devices, blood collection needles, sphygmomanometers, thermometers, ear thermometers, etc. These medical devices can be used in a variety of physiological measurements or various medical uses, showing how important medical devices are to us. invention.

With the progress of the times, the evolution of medical devices is getting faster and faster. With the emergence of various medical methods, more and more medical devices are born with medical methods, and medical devices are used because of their demand and Convenience is constantly changing and improving. For example, when the temperature is measured at the initial temperature, it is used to view the red line rising position and the temperature mark on the thermometer. Further, the display panel directly tells you the temperature, and even has The ear thermometer can measure body temperature faster and more accurately, all because of the convenience of use and use.

Nowadays, for medical equipment, there is more demand and convenience for blood collection technology, and there are more different types and methods for blood sampling technology, such as blood collection pen, blood collection needle, blood collection tube, etc. The blood collection instruments currently used on the market are usually not forced-type throwers. It is possible that those used blood collection instruments will be accidentally taken again for blood collection, or after some illegal black heart medical units are disinfected. The same blood collection device is used again to collect blood, increasing the harm of repeated use, and the blood between the patients is easily infected with each other during the blood collection process, and there is a considerable safety hazard, and the disposable blood collection needle device in the current technology has The structure is often complicated, complicated in production, and relatively cost-effective. Such an appliance cannot be widely promoted and applied, and is not economically cost-effective. Such a blood collection needle device usually does not have a protection device, and the user often inadvertently triggers the The blood collection needle device causes a puncture wound by the blood collection needle, or is caused by a collision during transportation. Such accidents resulting in one-time blood collection needles appliance is activated and can not be used again, such a structure is not only dangerous and cause an accident because if disposable lancing device triggered, can also cause unnecessary cost consumption.

Therefore, the present invention further improves the above-mentioned shortcomings, and invents a disposable blood collection needle structure, which has a protective structure measure, and the user is not likely to be accidentally triggered to cause a needle puncture injury. Reducing the structure of the disposable lancet needle due to an accidental collision during transport causes the disposable lancet needle structure to be triggered, and can no longer be used. In addition, the component structure of the present invention is simplified, and the structure is easy to install. The disposable lancet structure is a novel and progressive invention without complicated assembly process and unnecessary cost consumption.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a disposable lancet structure having a protective structure that prevents accidental triggering or accidental triggering of the lancet.

A secondary object of the present invention is to provide a disposable lancet structure structure which is more convenient to assemble and reduce cost due to simplification of components.

For the purpose of achieving the above-mentioned main purpose, the disposable lancet structure mainly comprises a casing, a button, an elastic member, a needle body and a protective sleeve, the casing having a first opening at one end thereof, and One end has a second opening, and at least one positioning groove is disposed in the housing, the button is disposed on the first opening, one end of the elastic member is disposed in the button, and the needle is disposed on the shell In the body, one end of the needle body is disposed at the other end of the elastic member, and the other end of the needle body is coated with one end of a blood collection needle, and the other end of the blood collection needle is directed toward the second opening, and the needle body is At least one positioning device is disposed on the two sides, and the protective sleeve is disposed on the other end of the blood collection needle. The protective sleeve is provided with at least one blocking portion on one side thereof, and the blocking portion is disposed in the second opening. Wherein, the horizontal height of the blocking portion extending horizontally to the positioning device is greater than or equal to the vertical height of the blocking portion extending horizontally to both sides to the positioning groove.

Furthermore, the disposable lancet structure of the present invention mainly has the housing, the needle body and the protective sleeve, the elastic member, and the button, and the above-mentioned structures are sequentially stuck together, and the component of the present invention is simple. Easy to assemble in the assembly process.

10‧‧‧shell

110‧‧‧ first opening

120‧‧‧second opening

130‧‧‧ positioning slot

140‧‧‧First guiding slot

141‧‧‧Second guiding slot

150‧‧‧opening

151‧‧‧Bumps

152‧‧‧Army

160‧‧‧ 施力面

170‧‧‧Restricted holes

180‧‧‧ button block

190‧‧‧elastic block

20‧‧‧ button

210‧‧‧ accommodating slots

220‧‧‧First spring sleeve

230‧‧‧ Positioning parts

231‧‧‧ positioning bumps

240‧‧‧ Storage Department

250‧‧‧Extension

30‧‧‧ needle

310‧‧ ‧ blood collection needle

320‧‧‧ Positioning device

330‧‧‧Second spring sleeve

340‧‧‧ Guides

40‧‧‧ protective cover

410‧‧‧Block

420‧‧‧Rotating parts

50‧‧‧Flexible parts

H1‧‧‧The height of the blocking part extends horizontally to both sides to the vertical height of the positioning device

H2‧‧‧The horizontal height of the blocking part extending horizontally to both sides to the vertical height of the positioning groove

The first picture: it is a schematic diagram of the decomposition of the disposable blood collection needle structure;
The second picture: it is a schematic diagram of the internal section of the disposable blood collection needle structure;
The third figure: it is a schematic diagram of the functional structure of the barrier;
Figure 4A: It is a schematic diagram of the first flow of the disposable blood collection needle structure;
Figure 4B: It is a schematic diagram of the second flow of the disposable blood collection needle structure;
Figure 4C: It is a schematic diagram of the third process of the disposable blood collection needle structure;
Figure 5: It is a schematic diagram of the structure inside the shell of the casing;
Figure 6: It is a schematic diagram of the internal structure of the button;
Figure 7: It is a schematic view of the outer surface of the casing;
Figure 8A: It is a schematic diagram of the engagement of the casing and the button;
Figure 8B is a schematic view showing the engagement of another housing with a button; and the ninth diagram: it is a schematic diagram of the engagement of the limiting hole and the button of the housing.

In order to provide a better understanding and understanding of the features and the efficacies of the present invention, the preferred embodiment and the detailed description are as follows:

Referring to the first figure, a disposable lancet structure of the present invention mainly comprises a housing 10, a button 20, an elastic member 50, a needle body 30 and a protective sleeve 40, which is one end of the elastic member 50. The other end of the elastic member 50 is disposed at one end of the needle body 30, and the protective sleeve 40 is connected to the other end of the needle body 30, and the above structure is disposed in the casing 10. .

Referring to the second figure, the present invention mainly utilizes the housing 10 having a first opening 110 at one end and a second opening 120 at the other end, and at least one positioning slot 130 is disposed in the housing 10. The button 20 is disposed on the first opening 110. One end of the elastic member 50 is disposed in the button 20. The needle 30 is disposed in the housing 10. One end of the needle 30 is disposed on the elastic portion. The other end of the needle body 30 is covered with one end of a blood collection needle 310. The other end of the blood collection needle 310 faces the second opening 120, and at least two sides of the needle body 30 are provided with at least A positioning device 320 corresponding to the positioning slot 130 is sleeved on the other end of the blood collection needle 310 by using a protective sleeve 40. The protective sleeve 40 is provided with at least one blocking portion 410 on one side thereof, and the blocking portion 410 is disposed on the first portion. The two openings 120, wherein the vertical height H1 of the blocking portion 410 extending horizontally to the positioning device 320 is greater than or equal to the vertical height H2 of the blocking portion 410 extending horizontally to the positioning groove 130.

As described above, before the protective cover 40 is removed, the blocking portion 410 of the protective cover 40 mortgages the needle body 30, so that the needle body 30 is in a suspended state even if the button 20 is pressed. The needle body 30 is still not fired, making the disposable lancet structure of the present invention less susceptible to triggering or structural damage due to accidents.

Referring to the third figure, the second opening 120 of the present invention has a structural relationship with the protective sleeve 40. One end of the protective sleeve 40 is provided with a rotating member 420, and the rotating member 420 extends from the protective sleeve 40 to The second opening 120 is disposed outside the second opening 120. When the protective cover 40 is to be withdrawn, the blocking portion 410 of the second opening 120 is rotated to the second opening after the rotating member 420 is rotated by 90 degrees. The larger space of 120 allows the blocking portion 410 to be withdrawn from the second opening 120, thereby removing the structure of the protective cover 40 from the housing 10.

Referring to FIG. 4A together, the protective cover 40 is first pulled away from the housing 10, and the protective cover 40 is pulled away from the housing 10 by the rotating member 420 in the manner described in the preceding paragraph, due to the blocking portion 410. The elastic member 50 is not affected by the blocking portion 410 of the protective sleeve 40 being locked by the second opening 120, thereby pushing the needle body 30 forward until the two sides of the needle body 30 are pushed. The positioning device 320 is in contact with the positioning slots 130 fixed in the housing 10, and the protective sleeve 40 is smoothly removed by the resistance between the positioning slot 130 and the positioning device 320.

Referring to FIG. 4B, the button 20 is pressed into the housing 10, and the two sides of the button 20 are extended downwards to provide a positioning elastic member 230. The positioning elastic member 230 is used before use. The positioning elastic member 230 is elastically configured to perform a moderate pressing change, so that the positioning elastic member 230 is disengaged from the opening 150, after the button 20 is pressed. After the positioning elastic member 230 is disengaged from the opening 150, the positioning elastic member 230 is received by the inner side wall of the housing 10, and the positioning elastic member 230 is received in the receiving portion 240 corresponding to the positioning elastic member 230. The two-side positioning elastic member 230 further extends downward to form an extending portion 250, wherein the extending portion 250 matches the structure of the positioning groove 130, and when the button 20 is pressed inwardly by the elastic member 50 by pressure, the button When the extension portion 250 is pressed against the positioning groove 130, the extension portion 250 simultaneously fixes the original contact with the positioning groove 130. The device 320 squeezes the positioning slots 130 to disengage the positioning devices 320 of the needle 30 The positioning groove 130 is unrestricted by the externally applied pressure and the reaction force generated by the compression of the spring, and the blood collecting needle 310 that pushes the needle body 30 is instantaneously injected to the second opening 120. The blood collecting needle 310 is emitted. There is a moment in time to exit the second opening 120.

Referring to FIG. 4C, when the blood collection needle 310 of the needle body 30 is emitted from the second opening 120, the internal space of the housing 10 is more and more as it goes toward the second opening 120. The positioning device 320 on both sides of the needle body 30 is pressed by the inner casings of the casing 10 adjacent to the second opening 120. Since the positioning devices 320 are pressed, they are also resisted to both sides. Applying a force, and the inner casings on both sides of the second opening 120 are narrower toward the second opening 120 and wider toward the casing 10, thereby generating a force for pushing the needle 30 into the casing. The needle body 30 is also slowly squeezed back into the casing.

As described above, the present invention has a protective structure. The blocking portion 410 of the protective cover 40 is locked to the second opening 120, so that the needle 30 is not projected forward by the elastic member 50. And the needle body 30 is utilized because the vertical height H1 of the blocking portion 410 extending horizontally to the positioning device 320 is greater than or equal to the horizontal height H2 of the blocking portion 410 extending horizontally to the positioning groove 130. The blocking portion 410 of the protective cover 40 assumes a suspended state, and when the protective structure is unwound by the rotating member 420 of the protective cover 40, the needle body 30 is pushed forward to the two sides of the needle body 30. The positioning device 320 is in contact with the positioning slots 130 of the housing 10, so that the needle body 30 is in a state to be fired, and the disposable lancet structure of the present invention is not easily triggered by the protective structure to cause accidental injury or It is unnecessary to consume. In a preferred embodiment, the needle body 30 and the protective cover 40 can be integrally formed.

Furthermore, in the disposable blood collection needle structure of the present invention, after the blood collection needle 310 is used, the blood collection needle 310 automatically retracts the inside of the housing 10, but the positioning devices 320 on both sides of the needle body 30 cannot return to the The positioning slots 130 of the housing 10 are positioned to avoid accidental injury to the needle tip of the blood collection needle 310, and after use, the button 20 is pressed into the housing 10 and does not pop out again. In the casing 10, the button 20 cannot be reused. Therefore, this structure can no longer be used after use, and is a disposable consumable to prevent the possibility of being reused.

The first guiding slot 140 is disposed in the housing 10 corresponding to the first guiding slot 140. The first guiding slot 140 is disposed on the housing 30. The guide member 340 is disposed along the first guiding slot 140 to move the needle 30 along the first guiding slot 140 in the housing 10 to the second opening. 120 moves, the structure restricts the left and right shaking of the needle body 30 to reduce the pain of the user, and the notch provided with the second guiding groove 141 is provided for the button 20, and the notch of the second guiding groove 141 The button has a movement space for restricting the button 20 so that the button 20 does not cause a biasing force. In addition, a button blocking block 180 is connected to the other end of the slot of the second guiding slot 141, which is a raised block. When the button 20 is pressed, it can only be pressed against the button blocking block 180 and then stopped, and can no longer be pressed into the housing 10, which prevents the button 20 from pressing down the needle tip of the lancet 310. The introduction causes accidental injury, and further, each of the first guiding grooves 140 is provided with an elastic a blocking block 190, when the elastic member 50 pushes the needle 30 into the second opening 120 along the first guiding groove 140, the maximum elastic expansion amount of the elastic member 50 is limited to the elastic blocking block. Stopping at 190 prevents the reaction force of the elastic member 50 from being excessively separated from the structure.

As shown in the first and sixth figures, the button 20 is further provided with a receiving slot 210 for arranging the elastic member 50. The elastic member 50 is a spring structure, and is further disposed in the receiving slot 210. a first spring sleeve 220, one end of the elastic member 50 is sleeved on the first spring sleeve 220, and the diameter of the first spring sleeve 220 is slightly larger than the inner diameter of the elastic member 50, The second spring sleeve 330 is further disposed at one end of the needle body 30, and the other end of the elastic member 50 is sleeved on the second spring sleeve 330. The diameter of the second spring sleeve 330 is slightly larger than the inner diameter of the elastic member 50 for engaging the elastic member 50, and when the blood collection needle 310 of the needle 30 projects the second opening After the 120, the second spring sleeve 330 of the needle body 30 is locked at one end of the elastic member 50, and the needle body 30 is subjected to the elongation of the elastic member 50, and the elastic member 50 is restored to one of the original states. Pulling back the force helps the blood collection needle 310 to retract inside the housing 30.

Referring to FIG. 7 , the present invention provides at least one force applying surface 160 on the outer side of the first opening 110 of the casing 10 , which is more convenient to use, and presses the button 20 with a thumb. The housing 10 is sandwiched between the index finger and the middle finger, and the index finger and the middle finger are clamped to the force applying surfaces 160 to facilitate pressing the button 20 and simultaneously applying a force.

Please refer to FIG. 4A, FIG. 8A and FIG. 8B together, the housing 10 and the button 20 are engaged with each other, and the fourth A diagram further extends at least one side of the button 20 on both sides of the button 20. The positioning elastic member 230 is corresponding to the at least one opening 150 disposed on the two sides of the casing 10, and the positioning elastic member 230 is disposed in the opening 150; The positioning member 230 is corresponding to the at least one protrusion 151 disposed on the two sides of the housing 10, and the positioning elastic member 230 is disposed under the protrusion 151; The positioning protrusions 231 are disposed on the two sides of the housing 10, and the positioning protrusions 231 are disposed under the elastic member 152. The above structures are fixed by the fastening structure. 20 is between the housing 10.

The ninth embodiment of the present invention further includes a limiting hole 170 disposed under the opening 150 of the housing 10. The limiting hole 170 is disposed corresponding to the positioning elastic member 230. When the extending portion 250 pressed to the two sides of the button 20 is in contact with the positioning groove 130, the positioning elastic member 230 can be appropriately elastically changed to make the positioning elastic member 230 recover from the receiving portion 240. The original state structure is further inserted into the limiting hole 170. The structure is to limit the position of the button 20 to ensure that the button 20 cannot be pulled out and pressed again, and the blood collecting needle 310 cannot be reused. Referring to FIG. 8A and FIG. 8B, another bump 151 (not shown) is disposed under the bump 151 and another elastic member 152 is disposed under the elastic member 152. (not shown) to ensure that the button 20 cannot be used again.

In the foregoing embodiments, it is known that the present invention is a simple device structure, and the assembly is simplified and convenient. Referring to the first figure, the present invention firstly sets the protective cover 40 on the needle body 30 or directly provides an integrated structure. The formed body pin 30 and the protective sleeve 40 are inserted into the housing 10 from the first opening 110, and the blocking portion 410 is engaged with the second opening 120. The one end of the elastic member 50 is aligned with the needle body 30, and the other end of the elastic member 50 is placed in the accommodating space 210 of the button 20, and the button 20 is finally attached to the first An opening 110 completes the assembly of the disposable lancet structure of the present invention.

In summary, the present invention is a disposable blood collection needle structure comprising a housing 10, a button 20, an elastic member 50, a needle body 30 and a protective sleeve 40, which are mainly blocked by the protective sleeve 40. The portion 410 is disposed in the second opening 120, so that the needle body 30 is in a suspended state as a protection structure. The structure of the disposable blood collection needle of the present invention is not easily triggered by the above structure, thereby causing accidental injury or not. If necessary, the elastic member 50 is stretched by the elastic force generated by the compression rebound of the elastic member 50, and then the blood collection needle 310 of the needle body 30 is ejected, and then the elasticity of the elastic member 50 or the positioning device 30 is used. The lancet 310 is pulled back to recover the elastic member 50 in the housing 10 to prevent the needle of the lancet 310 from being accidentally injured, and the button 20 is used to trigger the compression rebound of the elastic member 50, and the trigger cannot be used again. The elastic member compresses and rebounds to ensure that the present invention is a disposable consumable structure, thereby eliminating the possibility of being reused, and the structure of the present invention is simple and uncomplicated, the assembly is simplified and convenient, and the use is easier.

Therefore, the present invention is a novelty, progressive and available for industrial use. It should be in accordance with the patent application requirements of the Chinese Patent Law. It is undoubtedly the invention patent application, and the Prayer Council will grant the patent as soon as possible. .

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that the shapes, structures, features, and spirits described in the claims of the present invention are equal. Variations and modifications are intended to be included within the scope of the invention.

10‧‧‧shell

110‧‧‧ first opening

120‧‧‧second opening

150‧‧‧opening

160‧‧‧ 施力面

170‧‧‧Restricted holes

20‧‧‧ button

210‧‧‧ accommodating slots

220‧‧‧First spring sleeve

230‧‧‧ Positioning parts

30‧‧‧ needle

310‧‧ ‧ blood collection needle

320‧‧‧ Positioning device

330‧‧‧Second spring sleeve

340‧‧‧ Guides

40‧‧‧ protective cover

410‧‧‧Block

420‧‧‧Rotating parts

50‧‧‧Flexible parts

Claims (16)

A disposable lancet structure comprising:
a housing having a first opening at one end and a second opening at the other end and at least one positioning slot in the housing;
a button disposed in the first opening;
An elastic member having one end disposed in the button;
a needle body disposed in the housing, one end of the needle body is disposed at the other end of the elastic member, and the other end of the needle body is covered with one end of a blood collection needle, and the other end of the blood collection needle is oriented toward the first a second opening, wherein at least one positioning device is disposed on the two sides of the needle body, and a protective sleeve is disposed on the other end of the blood collecting needle, and the protective sleeve is provided with at least one blocking portion on one side thereof. The blocking portion is disposed in the second opening; wherein the vertical height of the blocking portion extending horizontally to the positioning device is greater than or equal to a vertical height of the blocking portion extending to both sides to a vertical height of the positioning groove. The disposable lancet structure of claim 1, wherein the button is further provided with a receiving groove for receiving the elastic member. The disposable lancet structure of claim 2, wherein the accommodating groove is further provided with a first spring sleeve, the second end of the needle body is provided with a second spring sleeve, the first spring sleeve and the first spring sleeve The diameter of the second spring sleeve is slightly larger than the inner diameter of the elastic member. In the disposable lancet structure of claim 1, the two sides of the button further extend an extension portion to match the positioning groove. In the disposable lancet structure of claim 1, the two sides of the button further extend at least one positioning elastic member corresponding to at least one opening disposed on two sides of the housing. The disposable lancet structure of claim 5, wherein the two sides of the button are further provided with a receiving portion for receiving the positioning elastic member. In the disposable lancet structure of claim 1, the two sides of the button further extend at least one positioning elastic member corresponding to at least one protrusion disposed on two sides of the housing. In the disposable lancet structure of claim 1, the two sides of the button further extend at least one positioning protrusion corresponding to at least one elastic member disposed on both sides of the housing. The disposable lancet structure of claim 1, wherein the protective sleeve extends to the second opening and is further provided with a rotating member. The disposable lancet structure of claim 1, wherein the side of the housing adjacent to the second opening is narrower toward the second opening and wider toward the inside of the housing. The disposable lancet structure of claim 1, wherein one side of the needle body is further provided with at least one guiding member corresponding to a first guiding groove disposed in the housing. The disposable lancet structure of claim 11, wherein a spring member blocking block is further disposed on both sides of the first guiding groove. The disposable lancet structure of claim 1, wherein a second guiding groove is further disposed in the housing to limit the movement space of the button. The disposable lancet structure of claim 13, wherein a further button blocking block is disposed in the housing to connect the second guiding slot. The disposable lancet structure of claim 1, wherein the needle body is integrally formed with the protective sleeve. The disposable lancet structure of claim 1, wherein the housing is further provided with at least one force applying surface adjacent to a side of the first opening.