Side pressure type safe blood taking needle

Abstract

The invention relates to a side pressure type safety blood taking needle which comprises a shell. The needle core comprises a needle cap and a needle body part, a pressing piece is arranged on the shell, and the pressing piece is provided with a touch pressing part in an extending mode in the direction facing the interior of the shell; a first bulge extending outwards in the radial direction is arranged on the needle body part; the pressing piece is provided with a standby position and a pressing position; under the condition that the needle cap is not removed, the pressing piece is located at the standby position, and the touch pressing part abuts against the first protrusion to prevent pressing of the pressing piece. Under the condition that the needle cap is removed and the needle core moves in the emitting direction, the pressing piece is still located at the standby position, and the first protrusion is disengaged from abutting against the touch pressing part based on the movement of the needle core in the emitting direction; when the pressing piece is located at the pressing position, the needle core is suitable for being emitted in the emitting direction. According to the side pressure type safe blood taking needle, blood taking cannot be conducted when unlocking is not conducted, and the side pressure type safe blood taking needle is safer to use.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the field of blood collection needles, and in particular to a side-pressure type safety blood collection needle. Background Art

[0002] Currently, disposable safety blood collection needle products are mainly used in medical institutions such as hospitals or clinics for medical staff to collect blood from patients. According to the blood collection habit, some medical staff are used to the side-pressing method. For some side-pressing blood collection needles on the clinical market, they can be pressed arbitrarily before and after the use of the blood collection needle, and there is a risk of accidental firing. Summary of the Invention

[0003] To alleviate or solve at least one aspect or at least one point of the above problems, the present disclosure is proposed.

[0004] Embodiments of the present disclosure provide a side-pressure type safety blood collection needle, including:

[0005] A housing;

[0006] A needle core, including a needle cap and a needle body part,

[0007] A pressing member is provided on the housing, and a touch pressing part is extended in the direction towards the inside of the housing;

[0008] A first protrusion extending radially outwards is provided on the needle body part;

[0009] The pressing member has a standby position and a pressing position;

[0010] When the needle cap is not removed, the pressing member is in the standby position, and the touch pressing part abuts against the first protrusion to prevent the pressing of the pressing member;

[0011] When the needle cap is removed and the needle core moves in the firing direction, the pressing member is still in the standby position, and the first protrusion is separated from the abutment with the touch pressing part due to the movement of the needle core in the firing direction;

[0012] When the pressing member is in the pressing position, the needle core is adapted to be fired in the firing direction.

[0013] By applying the embodiments of the present disclosure, the blood collection needle can be realized that blood collection cannot be performed without unlocking, that is, in the initial state, blood collection cannot be performed when the needle cap is not removed; after the needle cap is removed, blood collection can be performed by pressing on the side, and it is safer to use. Brief Description of the Drawings

[0014] Figure 1 Schematic diagram of a side-pressing type safety blood collection needle according to an exemplary embodiment of the present disclosure;

[0015] Figure 2 ForFigure 1 Explosion schematic diagram of a side-press type safety blood collection needle;

[0016] Figure 3 is Figure 1 Stereoscopic schematic diagram of another perspective of the side-press type safety blood collection needle;

[0017] Figure 4 is Figure 1 Stereoscopic schematic diagram of the needle core in

[0018] Figure 5 is Figure 1 Another stereoscopic schematic diagram of the needle core in

[0019] Figure 6 is Figure 1 Stereoscopic schematic diagram of the upper shell in

[0020] Figure 7 is Figure 1 Stereoscopic schematic diagram of the lower shell in

[0021] Figure 8 State diagram of the side-press type safety blood collection needle after unscrewing the needle cap;

[0022] Figure 9 State diagram of the side-press type safety blood collection needle after pressing the button;

[0023] Figure 10 State diagram of the side-press type safety blood collection needle during blood collection after pressing the button;

[0024] Figure 11 State diagram of the side-press type safety blood collection needle after firing.

[0025] In the figure: 1. Blood collection needle;

[0026] 2. Upper shell, 2-1. Pressing member, 2-2. Supporting part, 2-2-1. Touching part, 2-2-2. Side blocking part, 2-2-3. First hook-shaped structure; 2-3. Third limiting step, 2-4, First limiting step, 2-5. First guiding groove, 2-6. First end limiting step, 2-7. First slot;

[0027] 3. Lower shell, 3-1. Fourth limiting step, 3-2. Second limiting step, 3-3. Second guiding groove, 3-4. Second end limiting step, 3-5. Second slot, 3-6. Second hook-shaped structure, sunken groove 3-7;

[0028] 4. Elastic member;

[0029] 5. Bottom cover, 5-1. First catch, 5-2. Second catch;

[0030] 6. Needle core, 6-1. Needle housing, 6-2. Blood collection needle body, 6-2-1. Needle tip, 6-2-2. Cylinder, 6-3. Needle cap, 6-3-1. First step, 6-4. Needle body part, 6-4-1. First protrusion, 6-4-2. Second protrusion, 6-4-3. Guide block, 6-4-4. Third protrusion, 6-4-5. Second step, 6-5. Connection part. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art based on this application belong to the scope of protection of the present disclosure.

[0032] According to an exemplary embodiment of the present disclosure, as Figures 1-11 shown, a side-press type safety blood collection needle 1 includes: a housing, an elastic member 4, a bottom cover 5, and a needle core 6.

[0033] In the present disclosure, by way of example, the housing includes an upper housing 2 and a lower housing 3. The upper housing 2, the lower housing 3, and the bottom cover 5 together form a receiving cavity, and the needle core 6 is installed in the receiving cavity.

[0034] The "upper", "lower", "front", and "rear" described in the present disclosure are a schematic description. As Figure 2 shown in, the directions of "upper", "lower", "front", and "rear" are shown.

[0035] According to an exemplary embodiment of the present disclosure, as Figure 4 and Figure 5 shown, the specific structure of the needle core 6 is shown. The needle core 6 includes: a needle housing 6-1 and a blood collection needle body 6-2. The blood collection needle body 6-2 is located inside the needle housing 6-1. Among them, the needle housing 6-1 includes a needle cap 6-3 and a needle body part 6-4. The needle cap 6-3 and the needle body part 6-4 are connected by a connection part 6-5.

[0036] The blood collection needle body 6-2 includes: a needle tip part 6-2-1 and a cylinder part 6-2-2;

[0037] The needle body part 6-4 includes: a first protrusion 6-4-1, a second protrusion 6-4-2, a guide block 6-4-3, and a third protrusion 6-4-4. The guide block 6-4-3 is formed with a second step 6-4-5;

[0038] The needle cap 6-3 is provided with a first step 6-3-1.

[0039] According to an exemplary embodiment of the present disclosure: as Figure 3 and Figure 6As shown, the specific structure of the upper housing 2 of the housing is shown. It includes: a pressing member 2-1, a supporting portion 2-2 located below the pressing surface of the pressing member 2-1, a third limiting step 2-3, a first limiting step 2-4, a first guiding groove 2-5, a first end limiting step 2-6, and a first slot 2-7;

[0040] Among them, the supporting portion 2-2 includes: a pressing portion 2-2-1, a side blocking portion 2-2-2, and a clamping structure located at the end of the side blocking portion 2-2-2;

[0041] Optionally, the clamping structure is a first hook-shaped structure 2-2-3.

[0042] According to an exemplary embodiment of the present disclosure: As Figure 3 and Figure 7 shown, the specific structure of the lower housing 3 of the housing is shown. It includes: a fourth limiting step 3-1, a second limiting step 3-2, a second guiding groove 3-3, a second end limiting step 3-4, a second slot 3-5, and a clamping and mating structure;

[0043] Optionally, the clamping and mating structure is a second hook-shaped structure 3-6.

[0044] Next, in conjunction with the attached Figures 1-11 description is made of the mating relationship between the components:

[0045] According to an exemplary embodiment of the present disclosure: As Figure 3 shown, a pressing member 2-1 is provided on the housing, and a pressing portion 2-2-1 extends in the direction towards the inside of the housing on the pressing member 2-1.

[0046] In an optional embodiment, a side blocking portion 2-2-2 also extends in the direction towards the inside of the housing on the pressing member 2-1.

[0047] The pressing portion 2-2-1 and the side blocking portion 2-2-2 together constitute the supporting portion 2-2 of the pressing member 2-1.

[0048] In an optional embodiment, the housing includes an upper housing 2 and a lower housing 3. Among them, the pressing member 2-1 is located on the upper housing 2 of the housing.

[0049] When the needle cap 6-3 is not removed, the pressing member 2-1 is in the standby position, and the pressing portion 2-2-1 abuts against the first protrusion 6-4-1 to prevent the pressing of the pressing member 2-1; at this time, the pressing portion 2-2-1 is located above the first protrusion 6-4-1, that is, the first protrusion 6-4-1 abuts against the pressing portion 2-2-1.

[0050] In the initial state, there is no contact between the side blocking portion 2-2-2 and the second protrusion 6-4-2, and there is a certain distance therebetween; after removing the needle cap 6-3, the needle core 6 moves forward in the firing direction until the side blocking portion 2-2-2 abuts against the second protrusion 6-4-2, causing the needle core 6 to stop moving. That is, after removing the needle cap 6-3, the needle core 6 moves forward. At this time, due to the existence of the side blocking portion 2-2-2, the side blocking portion 2-2-2 can block the second protrusion 6-4-2 from continuing to move forward. At this time, the pressing member 2-1 is still in the standby position, and the first protrusion 6-4-1 is separated from the contact with the pressing portion 2-2-1 due to the movement of the needle core 6 in the firing direction.

[0051] When the pressing member 2-1 is pressed, the side blocking portion 2-2-2 moves downward. At this time, the side blocking portion 2-2-2 releases the block on the second protrusion 6-4-2, that is, the side blocking portion 2-2-2 is separated from the contact with the second protrusion 6-4-2 due to the downward movement of the pressing member 2-1, enabling the needle core 6 to continue to move along the firing direction.

[0052] In one embodiment, the pressing portion 2-2-1 and the side blocking portion 2-2-2 are integrally formed, and the pressing portion 2-2-1 and the side blocking portion 2-2-2 are spaced apart in the firing direction of the blood collection needle.

[0053] In an alternative embodiment, there is a groove between the pressing portion 2-2-1 and the side blocking portion 2-2-2, and the pressing portion 2-2-1 and the side blocking portion 2-2-2 form a "U" shaped structure.

[0054] In one embodiment, the extending length of the side blocking portion 2-2-2 is greater than the extending length of the pressing portion 2-2-1.

[0055] As Figure 4 and Figure 5 shown, the needle core 6 is composed of a needle shell 6-1 and a blood collection needle body 6-2. The needle shell 6-1 includes a needle cap 6-3 and a needle body portion 6-4. The needle cap 6-3 and the needle body portion 6-4 are connected by a connecting portion 6-5, and the diameter of the connecting portion 6-5 is smaller than the diameter of the needle cap 6-3 near the connecting portion 6-5.

[0056] In one embodiment, at least one third protrusion 6-4-4 arranged circumferentially around the needle body portion 6-4 is provided at the rear end of the needle body portion 6-4. One end of the elastic member 4 is fixed to the rear end of the needle body portion 6-4 through the third protrusion 6-4-4 and is limited and fixed by the third protrusion 6-4-4.

[0057] In one embodiment, the third protrusions 6-4-4 can be multiple and can be evenly arranged around the needle body portion 6-4. The elastic member 4 can be a spring or other elastic and stretchable biasing components.

[0058] The blood collection needle body 6-2 is composed of a needle tip part 6-2-1 and a cylindrical part 6-2-2. Most of the needle tip part 6-2-1 is buried in the needle cap 6-3, and most of the cylindrical part 6-2-2 is buried in the needle body part 6-4.

[0059] The needle body part 6-4 is provided with a first protrusion 6-4-1 extending radially outward, a second protrusion 6-4-2 extending radially outward, and a guide block 6-4-3. In the radial direction, the radial outer edge of the first protrusion 6-4-1 is farther from the axis of the blood collection needle body than the radial outer edge of the second protrusion 6-4-2.

[0060] In one embodiment, in the radial direction, the radial outer edge of the second protrusion 6-4-2 is closer to the axis of the blood collection needle body 6-2 than the inner wall surface of the side blocking part 2-2-2 to the axis of the blood collection needle body 6-2, and the radial outer edge of the second protrusion 6-4-2 is farther from the axis of the blood collection needle body 6-2 than the inner edge of the clamping structure 2-2-3 to the axis of the blood collection needle body 6-2.

[0061] So that after removing the needle cap 6-3 and before the pressing member 2-1 is pressed, the needle core 6 moves in the firing direction until the clamping structure of the side blocking part 2-2-2 abuts against the second protrusion 6-4-2. At this time, based on the abutment of the clamping structure and the second protrusion 6-4-2, the needle core 6 stops moving.

[0062] After the pressing member 2-1 is pressed, the side blocking part 2-2-2 moves downward with the pressing member 2-1, and the clamping structure 2-2-3 of the side blocking part 2-2-2 releases the contact blockage of the second protrusion 6-4-2, so that the second protrusion 6-4-2 can pass through the side blocking part 2-2-2, and thus the needle core 6 can continue to be fired forward.

[0063] In one embodiment, a third limiting step 2-3 and a fourth limiting step 3-1 are respectively arranged on the inner sides of the front ends of the upper shell 2 and the lower shell 3; a first limiting step 2-4 and a second limiting step 3-2 are respectively arranged on the inner sides of the rear ends of the upper shell 2 and the lower shell 3.

[0064] The first step 6-3-1 at the front end of the needle core 6 is limited by the third limiting step 2-3 and the fourth limiting step 3-1 on the inner sides of the front ends of the upper shell 2 and the lower shell 3, that is, the third limiting step 2-3 and the fourth limiting step 3-1 prevent the first step 6-3-1 from moving forward, so that the needle core 6 cannot be pulled out forward in the natural state.

[0065] The second step 6-4-5 at the rear end of the needle core 6 is limited by the first limiting step 2-4 and the second limiting step 3-2 on the inner sides of the rear ends of the upper shell 2 and the lower shell 3.

[0066] In one embodiment, the needle body portion 6-4 includes two oppositely arranged guiding blocks 6-4-3. A second step 6-4-5 is formed between the guiding blocks 6-4-3 and the main body of the needle body portion 6-4. The end faces of the second step 6-4-5 are respectively in contact with the end faces of the first limiting step 2-4 and the second limiting step 3-2.

[0067] The first limiting step 2-4 and the second limiting step 3-2 can prevent the guiding blocks 6-4-3 from moving backward, so that the needle core 6 cannot be pressed backward even in the natural state.

[0068] As Figure 6 and Figure 7 As shown, a first guiding groove 2-5 and a second guiding groove 3-3 are respectively arranged in the upper housing 2 and the lower housing 3. The two oppositely arranged guiding blocks 6-4-3 of the needle body portion 6-4 are respectively located in the first guiding groove 2-5 and the second guiding groove 3-3 in the upper and lower housings, and can move back and forth in the first guiding groove 2-5 and the second guiding groove 3-3 under the action of a spring.

[0069] The first limiting step 2-4 is located at the rear end of the first guiding groove 2-5, and the second limiting step 3-2 is located at the rear end of the second guiding groove 3-3.

[0070] In one embodiment, first end limiting steps 2-6 and second end limiting steps 3-4 are respectively arranged on the inner sides of the front ends of the upper housing 2 and the lower housing 3. The first end limiting step 2-6 is located at the front end of the first guiding groove 2-5, and the second end limiting step 3-4 is located at the front end of the second guiding groove 3-3. The first end limiting steps 2-6 and the second end limiting steps 3-4 are used to prevent the guiding blocks 6-4-3 from moving forward. That is, when the needle core 6 is fired forward, the first end limiting steps 2-6 and the second end limiting steps 3-4 can resist the guiding blocks 6-4-3, so that the needle body portion cannot continue to move forward.

[0071] In one embodiment, the end of the side blocking portion 2-2-2 has a first hook-shaped structure 2-2-3 facing the inside of the housing, and the lower housing 3 is provided with a second hook-shaped structure 3-6.

[0072] After the needle core 6 is fired and returns, at this time, the pressing member 2-1 has been released. Then, the first hook-shaped structure 2-2-3 hooks the second hook-shaped structure 3-6 to prevent the pressing member 2-1 from being pressed again. That is, after blood collection is completed and the needle core 6 returns to the housing, due to the engagement and clamping of the first hook-shaped structure 2-2-3 and the second hook-shaped structure 3-6, the blood collection needle cannot be pressed for blood collection a second time after being fired for blood collection.

[0073] In one embodiment, a sunken groove 3-7 is provided in the lower housing 3 of the housing, so that the side blocking portion 2-2-2 can move downward after the pressing member 2-1 is pressed until it enters the sunken groove 3-7.

[0074] Wherein, the second hook-shaped structure 3-6 is disposed adjacent to the sunken groove 3-7, and the hook of the second hook-shaped structure 3-6 is bent toward the direction of the sunken groove 3-7.

[0075] In one embodiment, the hook of the first hook-shaped structure 2-2-3 faces the inside of the housing, and the hook of the second hook-shaped structure 3-6 faces the firing direction of the needle core 6.

[0076] In one embodiment, the bottom cover 5 has two first engaging hooks 5-1 arranged oppositely, and the rear ends of the upper housing 2 and the lower housing 3 are respectively provided with a first slot 2-7 and a second slot 3-5, and the two first engaging hooks 5-1 are respectively fixed in the first slot 2-7 and the second slot 3-5.

[0077] In one embodiment, the bottom cover 5 is further provided with a second engaging hook 5-2, and the other end of the elastic member 4 is fixedly connected to the second engaging hook 5-2 of the bottom cover 5. In the initial state, the elastic member 4 is in a compressed state.

[0078] In one embodiment, the first engaging hook 5-1 is an outer engaging hook on the bottom cover 5, and the second engaging hook 5-2 is an inner engaging hook 5-2 on the bottom cover 5.

[0079] In one embodiment, the upper housing 2 and the lower housing 3 are connected and fixed together by a hole-column matching structure.

[0080] Combined Figures 1-11 Describe the working principle of the side-pressing type safety blood collection needle of the present disclosure:

[0081] In the initial state, when the needle cap 6-3 is not removed, the touch pressing portion 2-2-1 of the side-pressing type safety blood collection needle of the present disclosure is located above the first protrusion 6-4-1 of the needle core 6, and the first protrusion 6-4-1 abuts against the touch pressing portion 2-2-1, so that the pressing member 2-1 cannot be pressed downward.

[0082] Such as Figure 8As shown, after rotating the needle cap 6-3, the needle shell 6-1 breaks at the connecting part 6-5, the needle cap 6-3 detaches from the needle body part 6-4, and the tip part 6-2-1 of the blood collection needle body 6-2 is exposed; at this time, the first step 6-3-1 at the front end of the needle core 6 is released from the restriction of the third limit step 2-3 of the upper shell 2 and the fourth limit step 3-1 of the lower shell 3. Under the compressive elastic force of the elastic member 4, the needle body part 6-4 pops forward by a certain distance. At this time, the first protrusion 6-4-1 of the needle body part 6-4 disengages from the abutment of the touch part 2-2-1 of the upper shell 2 and is no longer located below the touch part 2-2-1. The needle body part 6-4 moves forward until the second protrusion 6-4-2 of the needle body part 6-4 contacts the side blocking part 2-2-2, and then the needle body part 6-4 stops ejecting outward.

[0083] After that, as Figure 9 and Figure 10 shown, press the front end of the shell tightly against the blood collection site, and press down the pressing member 2-1 of the upper shell 2. At this time, the pressing member 2-1 drives the side blocking part 2-2-2 to move downward together. When it moves downward until the side blocking part 2-2-2 no longer contacts the second protrusion 6-4-2 of the needle body part 6-4, then under the compressive elastic force of the elastic member 4, the needle body part 6-4 continues to eject forward.

[0084] When the upper and lower guiding blocks 6-4-3 of the needle body part 6-4 touch the first end limit step 2-6 of the upper shell 2 and the second end limit step 3-4 of the lower shell 3, the needle body part 6-4 stops popping out. During this popping process, the exposed needle tip 6-2-1 will pierce the blood collection site. At this time, the elastic member 4 is in a stretched state.

[0085] As Figure 11 shown, under the pulling force of the elastic member 4, the needle body part 6-4 retracts into the shell along the reverse direction of the ejection direction. Since the needle tip 6-2-1 is lower than the hole surface formed by the front end of the shell, that is, after the needle body part 6-4 returns to the shell, the needle tip 6-2-1 is inside the shell and does not expose the needle outlet at the front end of the shell, which can prevent the needle tip 6-2-1 from injuring medical staff.

[0086] After the pressing member 2-1 is pressed and the needle body part 6-4 pops out, release the pressing member 2-1. At this time, the first hook-shaped structure 2-2-3 of the upper shell 2 will hook on the second hook-shaped structure 3-6 of the lower shell 3 to ensure that the pressing member 2-1 cannot be pressed again.

[0087] Due to the side-pressing type safety blood collection needle of the present disclosure, it is realized that blood collection cannot be performed without unlocking, that is, when the needle cap is not removed, and secondary pressing for blood collection cannot be performed after triggering blood collection, which is safer in use.

[0088] Based on the above, the present disclosure proposes the following technical solutions:

[0089] 1. A side-pressure safety blood collection needle, comprising:

[0090] A housing;

[0091] A needle core, including a needle cap and a needle body portion,

[0092] wherein:

[0093] A pressing member is provided on the housing, and a contact pressing portion is extended in the direction towards the interior of the housing;

[0094] A first protrusion extending radially outwards is provided on the needle body portion;

[0095] The pressing member has a standby position and a pressing position;

[0096] When the needle cap is not removed, the pressing member is in the standby position, and the contact pressing portion abuts against the first protrusion to prevent the pressing of the pressing member;

[0097] When the needle cap is removed and the needle core moves in the firing direction, the pressing member is still in the standby position, and the first protrusion is disengaged from the contact with the contact pressing portion due to the movement of the needle core in the firing direction;

[0098] When the pressing member is in the pressing position, the needle core is adapted to be fired in the firing direction.

[0099] 2. The side-pressure safety blood collection needle according to claim 1, wherein:

[0100] A side blocking portion is extended in the direction towards the interior of the housing on the pressing member, and a second protrusion extending radially outwards is provided on the needle body portion;

[0101] When the needle cap is removed and the needle core moves in the firing direction until the side blocking portion abuts against the second protrusion, at this time, the pressing member is still in the standby position;

[0102] When the pressing member is in the pressing position, the side blocking portion is disengaged from the contact with the second protrusion due to the downward movement of the pressing member to allow the needle core to continue to be fired in the firing direction.

[0103] 3. The side-pressure safety blood collection needle according to claim 2, wherein:

[0104] The end of the side blocking portion has a clamping structure towards the interior of the housing, and a clamping cooperation structure is also provided on the housing;

[0105] The pressing member also has a post-pressing position,

[0106] When the pressing member is in the post-pressing position, the clamping structure is adapted to be clamped with the clamping cooperation structure to prevent the pressing member from being pressed again.

[0107] 4. The side-pressure safety blood collection needle according to claim 3, wherein:

[0108] In the radial direction, the distance between the radially outer edge of the second protrusion and the axis of the blood collection needle body is less than the distance between the inner wall surface of the side blocking portion and the axis of the blood collection needle body, and

[0109] the distance between the radially outer edge of the second protrusion and the axis of the blood collection needle body is greater than the distance between the inner edge of the clamping structure and the axis of the blood collection needle body.

[0110] 5. The side-pressure safety blood collection needle according to claim 3, wherein:

[0111] The clamping structure is a first hook-shaped structure, and the hook of the first hook-shaped structure faces the direction of the blood collection needle body; the clamping and matching structure is a second hook-shaped structure, and the hook of the second hook-shaped structure faces the firing direction;

[0112] The first hook-shaped structure and the second hook-shaped structure are adapted to be clamped to prevent the pressing member from being pressed again.

[0113] 6. The side-pressure safety blood collection needle according to claim 3, wherein:

[0114] A sunken groove is provided in the shell so that the side blocking portion can move downward after the pressing member is pressed.

[0115] 7. The side-pressure safety blood collection needle according to claim 2, wherein:

[0116] In the radial direction, the distance between the radially outer edge of the first protrusion and the axis of the blood collection needle body is greater than the distance between the radially outer edge of the second protrusion and the axis of the blood collection needle body.

[0117] 8. The side-pressure safety blood collection needle according to claim 2, wherein:

[0118] The extending length of the side blocking portion is greater than the extending length of the touch pressing portion.

[0119] 9. The side-pressure safety blood collection needle according to claim 2, wherein:

[0120] The touch pressing portion and the side blocking portion are integrally formed, and the touch pressing portion and the side blocking portion are spaced apart in the firing direction of the blood collection needle, or a groove is provided between the touch pressing portion and the side blocking portion.

[0121] 10. The side-pressure safety blood collection needle according to any one of claims 1-9, wherein:

[0122] The needle body portion further includes two oppositely arranged guide blocks, and a first guide groove and a second guide groove are respectively provided in the shell;

[0123] The two guiding blocks are adapted to move along the first guiding groove and the second guiding groove in the emission direction.

[0124] 11. The side-pressing type safety blood collection needle according to claim 10, wherein:

[0125] One end of the first guiding groove has a first limiting step, and one end of the second guiding groove has a second limiting step;

[0126] The first limiting step and the second limiting step are used to prevent the guiding block from moving backward.

[0127] 12. The side-pressing type safety blood collection needle according to claim 11, wherein:

[0128] A first end limiting step and a second end limiting step are respectively arranged in the shell;

[0129] The first end limiting step and the second end limiting step are respectively located at the front ends of the first guiding groove and the second guiding groove, and are used to prevent the guiding block from moving forward.

[0130] 13. The side-pressing type safety blood collection needle according to claim 1, wherein:

[0131] The needle cap has two first steps arranged oppositely, and a third limiting step and a fourth limiting step are respectively arranged at the front end of the shell;

[0132] The third limiting step and the fourth limiting step are respectively used to prevent the two first steps from moving forward.

[0133] 14. The side-pressing type safety blood collection needle according to claim 3, wherein:

[0134] The shell includes an upper shell and a lower shell, and the upper shell and the lower shell are fixedly connected through a hole-column matching structure;

[0135] The pressing member is arranged on the upper shell, and the clamping matching structure is arranged on the lower shell.

[0136] It should be noted that the above technical solutions can be combined arbitrarily under logical circumstances, and all are within the protection scope of the present disclosure. In this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0137] Each embodiment in this specification is described in a related manner. For the same and similar parts between the embodiments, reference can be made to each other, and the differences between each embodiment and other embodiments are emphasized.

[0138] Although the embodiments of the present disclosure have been shown and described, for those of ordinary skill in the art, it can be understood that these embodiments can be changed and combined with elements without departing from the principle and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A side-pressing type safety blood collection needle, comprising: a housing; a needle core, including a needle cap and a needle body part, wherein: a pressing member is provided on the housing, and a pressing part extends in the direction towards the inside of the housing; a first protrusion extending radially outwards is provided on the needle body part; the pressing member has a standby position and a pressing position; when the needle cap is not removed, the pressing member is in the standby position, and the pressing part abuts against the first protrusion to prevent the pressing of the pressing member; when the needle cap is removed so that the needle core moves in the firing direction, the pressing member is still in the standby position, and the first protrusion is disengaged from the abutment with the pressing part based on the movement of the needle core in the firing direction; when the pressing member is in the pressing position, the needle core is adapted to be fired in the firing direction.

2. The side-pressing type safety blood collection needle according to claim 1, wherein: a side blocking part extends in the direction towards the inside of the housing on the pressing member, and a second protrusion extending radially outwards is provided on the needle body part; when the needle cap is removed so that the needle core moves in the firing direction until the side blocking part abuts against the second protrusion, at this time, the pressing member is still in the standby position; when the pressing member is in the pressing position, the side blocking part is disengaged from the abutment with the second protrusion based on the downward movement of the pressing member to allow the needle core to continue to be fired in the firing direction.

3. The side-pressing type safety blood collection needle according to claim 2, wherein: the end of the side blocking part has a clamping structure facing towards the inside of the housing, and a clamping cooperation structure is also provided on the housing; the pressing member also has a post-pressing position, when the pressing member is in the post-pressing position, the clamping structure is adapted to be clamped with the clamping cooperation structure to prevent the pressing member from being pressed again.

4. The side-pressing type safety blood collection needle according to claim 3, wherein: in the radial direction, the distance between the radially outer edge of the second protrusion and the axis of the blood collection needle body is less than the distance between the inner wall surface of the side blocking part and the axis of the blood collection needle body, and the distance between the radially outer edge of the second protrusion and the axis of the blood collection needle body is greater than the distance between the inner edge of the clamping structure and the axis of the blood collection needle body.

5. The side-pressing type safety blood collection needle according to claim 3, wherein: the clamping structure is a first hook-shaped structure, and the hook of the first hook-shaped structure faces towards the direction of the blood collection needle body; the clamping cooperation structure is a second hook-shaped structure, and the hook of the second hook-shaped structure faces towards the firing direction; the first hook-shaped structure and the second hook-shaped structure are adapted to be clamped to prevent the pressing member from being pressed again.

6. The side-pressing type safety blood collection needle according to claim 3, wherein: a sinking groove is provided inside the housing so that the side blocking part can move downwards after the pressing member is pressed.

7. The side-pressing type safety blood collection needle according to claim 2, wherein: in the radial direction, the distance between the radially outer edge of the first protrusion and the axis of the blood collection needle body is greater than the distance between the radially outer edge of the second protrusion and the axis of the blood collection needle body.

8. The side-pressing type safety blood collection needle according to claim 2, wherein: the extending length of the side blocking part is greater than the extending length of the pressing part.

9. The side-pressing type safety blood collection needle according to claim 2, wherein: the pressing part and the side blocking part are integrally formed, and the pressing part and the side blocking part are spaced apart in the emission direction of the blood collection needle, or a groove is provided between the pressing part and the side blocking part.

10. The side-pressing type safety blood collection needle according to any one of claims 1-9, wherein: the needle body part further includes two guiding blocks arranged oppositely, and a first guiding groove and a second guiding groove are respectively arranged in the shell; the two guiding blocks are adapted to move along the first guiding groove and the second guiding groove in the emission direction.

11. The side-pressing type safety blood collection needle according to claim 10, wherein: one end of the first guiding groove has a first limiting step, and one end of the second guiding groove has a second limiting step; the first limiting step and the second limiting step are used to prevent the guiding block from moving backward.

12. The side-pressing type safety blood collection needle according to claim 11, wherein: a first end limiting step and a second end limiting step are respectively arranged in the shell; the first end limiting step and the second end limiting step are respectively located at the front ends of the first guiding groove and the second guiding groove, and are used to prevent the guiding block from moving forward.

13. The side-pressing type safety blood collection needle according to claim 1, wherein: the needle cap has two first steps arranged oppositely, and a third limiting step and a fourth limiting step are respectively arranged at the front end of the shell; the third limiting step and the fourth limiting step are respectively used to prevent the two first steps from moving forward.

14. The side-pressing type safety blood collection needle according to claim 3, wherein: the shell includes an upper shell and a lower shell, and the upper shell and the lower shell are fixedly connected through a hole-column matching structure; the pressing member is arranged on the upper shell, and the clamping and matching structure is arranged on the lower shell.

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