Blood sampling needle holder seat

Abstract

The utility model discloses a blood sampling needle holder seat, and relates to the field of blood sampling tools. The utility model provides the blood sampling needle holder seat capable of preventing the needle holder from shaking during blood sampling. The blood collection needle holder seat comprises a base, a blood collection tube seat and a moving mechanism; a needle holder groove is formed in the top of the base in the front-back direction, and the needle holder groove can limit the front-back and left-right movement of the placed needle holder; the moving mechanism is installed on the base and located below the needle holder groove. The blood collection tube seat is arranged behind the needle holder groove in the front-back direction and connected with the moving mechanism, a blood collection tube groove is formed in the top of the blood collection tube seat in the front-back direction, and the blood collection tube groove can limit front-back and left-right movement of the placed blood collection tube; when the needle holder and the blood collection tube are respectively placed in the needle holder groove and the blood collection tube groove, the needle holder and the blood collection tube are coaxially arranged; the moving mechanism can drive the blood collection tube seat to move back and forth, so that the blood collection tube seat and the carried blood collection tubes enter the needle holder.

Description

Technical Field

[0001] The utility model relates to the field of blood sampling tools, in particular to a blood sampling needle holder seat. Background Art

[0002] Common tools used in hospitals for blood collection include: Figure 1 As shown, there are a blood collection needle, a needle holder and a blood collection tube. The blood collection needle includes a needle at the front end, a blood collection tube connecting needle at the rear end and a blood catheter therebetween. The needle pierces the blood vessel, the needle holder is mounted on the blood collection tube connecting needle, there is negative pressure in the blood collection tube, the blood collection tube is inserted into the needle holder, and the blood collection tube connecting needle is inserted into the blood collection tube to achieve blood collection. The above-mentioned blood collection tools are often used to collect multiple tubes of blood. Multiple tubes of blood can be collected by connecting multiple blood collection tubes to the blood collection tube connecting needles in sequence.

[0003] As mentioned above, during the blood collection operation, the blood collection tube needs to be connected to the blood collection tube connecting needle, and the blood collection tube is unplugged after blood collection. The specific operation is to hold the needle holder with one hand and the blood collection tube with the other hand to insert and pull out. During this process, it is inevitable that the hand will shake, which will then cause the rear end of the blood collection needle to shake. Since the blood catheter of the blood collection needle is short, it may pull and cause the needle inserted into the blood vessel to shake, causing pain to the patient or even leading to blood collection failure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a blood sampling needle holder seat which can prevent the needle holder from shaking during blood sampling.

[0005] The technical solution adopted to solve the above problems is: the blood collection needle holder seat includes a base, a blood collection tube seat and a moving mechanism; the top of the base is provided with a needle holder groove arranged in the front-to-back direction, and the needle holder groove can limit the forward, backward, left and right movement of the inserted needle holder; the moving mechanism is installed on the base and is located below the needle holder groove; the blood collection tube seat is arranged behind the needle holder groove in the front-to-back direction and is connected to the moving mechanism, and the top of the blood collection tube seat is provided with a blood collection tube groove arranged in the front-to-back direction, and the blood collection tube groove can limit the forward, backward, left and right movement of the inserted blood collection tube; when the needle holder and the blood collection tube are respectively placed in the needle holder groove and the blood collection tube groove, the two are coaxially arranged; the moving mechanism can drive the blood collection tube seat to move forward and backward so that the blood collection tube seat and the blood collection tube carried by it enter the needle holder.

[0006] Furthermore, the moving mechanism comprises an electric telescopic rod, a guide rod and a slider, both of which are mounted on the base, the slider is sleeved on the guide rod and connected to the electric telescopic rod; and the blood collection tube seat is connected to the electric telescopic rod.

[0007] Furthermore, the depth of the needle holder groove is not less than the diameter of the needle holder, the needle holder groove includes a needle holder main body groove and a needle holder flange groove located behind the needle holder main body groove, the front wall of the needle holder groove has a needle holder front end joint passing groove extending downward from the top of the front wall of the needle holder groove, the rear wall of the needle holder groove has a blood collection tube passing hole, and the left and right side walls of the needle holder groove both have needle holder removal grooves.

[0008] Furthermore, the depth of the blood collection tube slot is not less than the diameter of the blood collection tube, the needle holder slot includes a blood collection tube main body slot and a tube cover slot located in front of the blood collection tube main body slot, a connecting needle passing hole is provided on the front wall of the blood collection tube slot, and blood collection tube removal slots are provided on the left and right side walls of the blood collection tube slot.

[0009] Furthermore, the blood collection needle holder seat includes an electronic control device, which includes two control buttons, namely a forward button and a retract button; when the forward button is pressed, the electronic control device controls the electric telescopic rod to shorten, so that the blood collection tube enters the needle holder; when the retract button is pressed, the electronic control device controls the electric telescopic rod to extend, so that the blood collection tube exits the needle holder.

[0010] Furthermore, the blood collection needle holder seat includes an electronic control device, which includes a control button. When the control button is pressed, the electronic control device controls the electric telescopic rod to shorten, so that the blood collection tube enters the needle holder, and controls the electric telescopic rod to extend five seconds after the blood collection tube moves forward to the limit position, so that the blood collection tube exits the needle holder.

[0011] The beneficial effect of the utility model is that the utility model can automatically insert and remove blood collection tubes. When inserting and removing blood collection tubes, the only manual operation is to put the blood collection tubes into and take them out of the blood collection tube slots. When manually putting the blood collection tubes into and taking them out of the blood collection tube slots, one-handed operation is sufficient, and the blood collection needle holder seat is only subject to slight external force, and the blood collection needle holder seat will not move without manual support; when the blood collection tubes are automatically inserted and removed, the blood collection needle holder seat is not subject to external force and will not move. Therefore, the utility model can avoid the movement of the needle holder when inserting and removing blood collection tubes, thereby avoiding shaking of the blood collection needle, causing pain to the patient and blood collection failure; and because of the reduction in manual operations, the blood collection operation is also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a diagram of existing blood collection tools;

[0013] Figure 2 is a front view of the blood collection needle holder;

[0014] Figure 3 is a top view of a blood collection needle holder seat;

[0015] Figure 4 This is a diagram of the blood collection needle holder in use (the blood collection tube is not inserted into the needle holder);

[0016] Figure 5 This is a diagram showing the use status of the blood collection needle holder (the blood collection tube is inserted into the needle holder);

[0017] Marked in the figure are: base 1, needle holder slot 11, needle holder main body slot 111, needle holder flange slot 112, needle holder front end joint through slot 12, needle holder removal slot 13, blood collection tube through hole 14, moving mechanism 2, electric telescopic rod 21, guide rod 22, slider 23, blood collection tube seat 3, blood collection tube slot 31, blood collection tube main body slot 311, tube cover slot 312, connecting needle through hole 32, blood collection tube removal slot 33, electric control device 4, control button 41, needle holder 5, puncture needle 6, blood collection tube 7. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] like Figure 2 and Figure 3 As shown, the blood collection needle holder seat includes a base 1, a blood collection tube seat 3 and a moving mechanism 2; the top of the base 1 is provided with a needle holder slot 11 arranged in the front-to-back direction, and the needle holder slot 11 can limit the inserted needle holder 5 from moving forward, backward, left and right; the moving mechanism 2 is installed on the base 1 and is located below the needle holder slot 11; the blood collection tube seat 3 is arranged behind the needle holder slot 11 in the front-to-back direction and is connected to the moving mechanism 2, and the top of the blood collection tube seat 3 is provided with a blood collection tube slot 31 arranged in the front-to-back direction, and the blood collection tube slot 31 can limit the inserted blood collection tube 7 from moving forward, backward, left and right; when the needle holder 5 and the blood collection tube 7 are respectively placed in the needle holder slot 11 and the blood collection tube slot 31, the two are coaxially arranged; the moving mechanism 2 can drive the blood collection tube seat 3 to move forward and backward so that the blood collection tube seat 3 and the blood collection tube 7 carried by it enter the needle holder 5.

[0020] When drawing blood, Figure 4 As shown, the needle holder 5 is placed in the needle holder slot 11, and the blood collection tube 7 is placed in the blood collection tube slot 31; then Figure 5 As shown, the moving mechanism 2 drives the blood collection tube seat 3 to move forward, drives the blood collection tube 7 to enter the needle holder 5, and inserts the blood collection tube connecting needle into the blood collection tube 7 to achieve blood collection; then the moving mechanism 2 drives the blood collection tube seat 3 to move out of the needle holder 5. Then the blood collection tube 7 is taken out to complete the blood collection of one blood collection tube 7.

[0021] The utility model can automatically insert and remove the blood collection tube 7. When inserting and removing the blood collection tube 7, the manual operation is only to put the blood collection tube 7 into and take it out of the blood collection tube slot 31. When manually inserting and removing the blood collection tube 7 into and out of the blood collection tube slot 31, one-handed operation is sufficient, and the blood collection needle holder seat is only subjected to slight external force and will not move; when the blood collection tube 7 is automatically inserted and removed, the blood collection needle holder seat is not subjected to external force and will not move. Therefore, the utility model can avoid the needle holder 5 from moving when the blood collection tube 7 is inserted and removed, thereby avoiding the shaking of the blood collection needle, causing pain to the patient and blood collection failure; and because the manual operation is reduced, the blood collection operation is also convenient.

[0022] The specific structure of the moving mechanism 2 can be: the moving mechanism 2 includes an electric telescopic rod 21, a guide rod 22 and a slider 23, the electric telescopic rod 21 and the guide rod 22 are both mounted on the base 1, the slider 23 is sleeved on the guide rod 22 and connected to the electric telescopic rod 21; the blood collection tube seat 3 is connected to the slider 23. The electric telescopic rod 21 is extended and retracted to drive the slider 23 to move, and then drive the blood collection tube seat 3 to move, so as to drive the blood collection tube 7 to move.

[0023] Since human hands are not involved in fixing the needle holder 5 and the blood collection tube 7 , the needle holder slot 11 and the blood collection tube slot 31 should fix the needle holder 5 and the blood collection tube 7 more reliably.

[0024] The preferred needle holder groove 11 is specifically as follows: the depth of the needle holder groove 11 is not less than the diameter of the needle holder 5, the needle holder groove 11 includes a needle holder main body groove 111 and a needle holder flange groove 112 located behind the needle holder main body groove 111, the front wall of the needle holder groove 11 has a needle holder front end joint through groove 12 extending downward from the top of the front wall of the needle holder groove 11, the rear wall of the needle holder groove 11 has a blood collection tube through hole 14, and the left and right side walls of the needle holder groove 11 have needle holder removal grooves 13.

[0025] The depth of the needle holder groove 11 is not less than the diameter of the needle holder 5. The needle holder 5 is located in the entirety of the needle holder groove 11, which can better fix the needle holder 5. The needle holder front end connector through groove 12 is used for the blood collection needle connector at the front end of the needle holder 5 to pass through, and the blood collection tube through hole 14 is used for the blood collection tube 7 to pass through. The needle holder 5 can be removed by inserting a finger into the needle holder removal groove 13.

[0026] The preferred blood collection tube slot 31 is specifically as follows: the depth of the blood collection tube slot 31 is not less than the diameter of the blood collection tube 7, the needle holder slot 11 includes a blood collection tube main body slot 311 and a tube cover slot 312 located in front of the blood collection tube main body slot 311, a connecting needle through hole 32 is provided on the front wall of the blood collection tube slot 31, and blood collection tube removal slots 33 are provided on the left and right side walls of the blood collection tube slot 31.

[0027] The depth of the blood collection tube groove 31 is not less than the diameter of the blood collection tube 7. The blood collection tube 7 is located in the blood collection tube groove 31 as a whole, which can better fix the blood collection tube 7. The connecting needle hole 32 is used for the blood collection tube connecting needle to pass through. The blood collection tube can be taken out by inserting a finger into the blood collection tube removal groove 33.

[0028] The blood collection needle holder seat needs to be powered by electricity, which can be powered by plugging in; and a simple electric control device 4 needs to be set up, and the specific electric control device 4 includes two control buttons 41, and the two control buttons 41 are a forward button and a backward button respectively; when the forward button is pressed, the electric control device 4 controls the electric telescopic rod 21 to shorten, so that the blood collection tube 7 enters the needle holder 5; when the backward button is pressed, the electric control device 4 controls the electric telescopic rod 21 to extend, so that the blood collection tube 7 exits the needle holder 5.

[0029] After the blood collection tube 7 is loaded into the blood collection tube slot 31, the forward button is pressed, and the electric control device 4 controls the electric telescopic rod 21 to shorten, so that the blood collection tube 7 enters the needle holder 5. After a few seconds, the blood enters the blood collection tube 7 completely, and the retract button is pressed, and the control device 4 controls the electric telescopic rod 21 to extend, so that the blood collection tube 7 exits the needle holder 5.

[0030] The electric control device 4 may also adopt the following structure: the electric control device 4 includes a control button 41; when the control button 41 is pressed, the electric control device 4 controls the electric telescopic rod 21 to shorten, so that the blood collection tube 7 enters the needle holder 5, and controls the electric telescopic rod 21 to extend five seconds after the blood collection tube 7 moves forward to the limit position, so that the blood collection tube 7 exits the needle holder 5.

[0031] When the blood collection tube 7 moves forward to the limit position, the blood collection tube connecting needle pierces the blood collection tube 7. The time for blood to enter the blood collection tube under the action of the negative pressure in the blood collection tube 7 generally does not exceed five seconds. Therefore, five seconds after the blood collection tube 7 moves forward to the limit position, the electric telescopic rod 21 is controlled to extend so that the blood collection tube 7 withdraws from the needle holder 5.

Claims

1. A blood collection needle holder, characterized in that: The invention comprises a base (1), a blood collection tube seat (3) and a moving mechanism (2); the top of the base (1) is provided with a needle holder slot (11) arranged in the front-to-back direction, and the needle holder slot (11) can limit the inserted needle holder (5) from moving forward, backward, left and right; the moving mechanism (2) is installed on the base (1) and is located below the needle holder slot (11); the blood collection tube seat (3) is arranged behind the needle holder slot (11) in the front-to-back direction and is connected to the moving mechanism (2); the top of the blood collection tube seat (3) is provided with a blood collection tube slot (31) arranged in the front-to-back direction, and the blood collection tube slot (31) can limit the inserted blood collection tube (7) from moving forward, backward, left and right; when the needle holder (5) and the blood collection tube (7) are respectively placed in the needle holder slot (11) and the blood collection tube slot (31), the two are coaxially arranged; the moving mechanism (2) can drive the blood collection tube seat (3) to move forward and backward so that the blood collection tube seat (3) and the blood collection tube (7) carried by it enter the needle holder (5).

2. The blood collection needle holder according to claim 1, characterized in that: The moving mechanism (2) comprises an electric telescopic rod (21), a guide rod (22) and a slider (23); the electric telescopic rod (21) and the guide rod (22) are both mounted on the base (1); the slider (23) is sleeved on the guide rod (22) and connected to the electric telescopic rod (21); and the blood collection tube holder (3) is connected to the electric telescopic rod (21).

3. The blood collection needle holder according to claim 2, characterized in that: The depth of the needle holder groove (11) is not less than the diameter of the needle holder (5). The needle holder groove (11) comprises a needle holder main body groove (111) and a needle holder flange groove (112) located behind the needle holder main body groove (111). The front wall of the needle holder groove (11) is provided with a needle holder front end joint passing groove (12) extending downward from the top of the front wall of the needle holder groove (11). The rear wall of the needle holder groove (11) is provided with a blood collection tube passing hole (14). The left and right side walls of the needle holder groove (11) are provided with needle holder removal grooves (13).

4. The blood collection needle holder according to claim 3, characterized in that: The depth of the blood collection tube groove (31) is not less than the diameter of the blood collection tube (7), the needle holder groove (11) comprises a blood collection tube main body groove (311) and a tube cover groove (312) located in front of the blood collection tube main body groove (311), the front wall of the blood collection tube groove (31) is provided with a connecting needle through hole (32), and the left and right side walls of the blood collection tube groove (31) are both provided with blood collection tube removal grooves (33).

5. The blood collection needle holder according to claim 4, characterized in that: The device comprises an electric control device (4), wherein the electric control device (4) comprises two control buttons (41), wherein the two control buttons (41) are respectively a forward button and a retract button; when the forward button is pressed, the electric control device (4) controls the electric telescopic rod (21) to shorten, so that the blood collection tube (7) enters the needle holder (5); when the retract button is pressed, the electric control device (4) controls the electric telescopic rod (21) to extend, so that the blood collection tube (7) exits the needle holder (5).

6. The blood collection needle holder according to claim 4, characterized in that: The invention comprises an electric control device (4), wherein the electric control device (4) comprises a control button (41); when the control button (41) is pressed, the electric control device (4) controls the electric telescopic rod (21) to shorten, so that the blood collection tube (7) enters the needle holder (5); and controls the electric telescopic rod (21) to extend, five seconds after the blood collection tube (7) advances to the limit position, so that the blood collection tube (7) exits the needle holder (5).

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