Portable ejection blood sampling pen

Abstract

The utility model relates to a blood sampling pen, in particular to a portable ejection blood sampling pen, which belongs to the technical field of medical treatment and comprises a pen tube, a telescopic tube is fixedly mounted on the inner upper surface of the pen tube, a support rod is slidably clamped in the telescopic tube, a support spring is fixedly mounted between the support rod and the pen tube, and a screw rod is fixedly mounted at the lower end of the support rod. The outer side of the screw rod is sleeved with a gear ring, a blood collection tube is installed at the lower end of the screw rod, an adjusting threaded groove is formed in the supporting rod, a through hole is formed in the upper end of the pen tube, an adjusting threaded rod is slidably clamped in the through hole, and the adjusting threaded rod penetrates through the through hole and is rotationally meshed with the adjusting threaded groove. The blood collection tube can be pushed to move back and forth, so that the device can quickly store the blood collection tube, the influence of a needle head in the device on the outside is reduced, and the safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to a portable ejection blood collection pen, belonging to the technical field of medical treatment. Background Art

[0002] When a doctor examines a patient's condition, medical staff need to take blood samples through veins or arteries for testing or related needs. This process is called blood sampling. An existing device is a blood sampling pen with an automatic ejection device (application number CN201920907608.0), including a pen barrel, a pen cap connected to the end of the pen barrel, a first spring installed on the left and right sides of the pen cap, an ejection button installed above the left and right side walls of the pen barrel, a second spring installed on the ejection button, a sliding groove is provided below the ejection button, a bayonet is connected to the inside of the sliding groove below the ejection button, a third spring is connected to the top of the inside of the pen cap, a fixing rod is connected to the top of the inside of the pen cap, and the bottom of the third spring is connected to The syringe has a rubber stopper installed at the bottom of the fixing rod, a clamping ring is provided on the outer wall of the syringe, a blood collection needle is connected to the bottom of the syringe, a pen head is installed at the bottom of the pen barrel, and a pinhole is provided at the bottom of the pen head. The utility model can make the operation of the blood collection pen simpler and improve the working efficiency through design, and has a wide range of applications. The above device can quickly push out the blood collection needle for blood collection. However, it is impossible to push the pushed blood collection needle back into the interior of the device, and the pillow exposed to the outside world is not only easy to pollute the external environment, but also easy to cause harm to the staff.

[0003] In view of this, the present utility model is proposed. Summary of the invention

[0004] The purpose of the utility model is to provide a portable ejection blood collection pen to solve the above problems. The gear ring can push the blood collection tube to move back and forth, thereby improving the control and storage effect of the device on the blood collection tube.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a portable ejection blood collection pen, comprising a pen tube, a telescopic tube is fixedly installed on the inner upper surface of the pen tube, a support rod is slidably clamped inside the telescopic tube, a support spring is fixedly installed between the support rod and the pen tube, a spiral rod is fixedly installed on the lower end of the support rod, a gear ring is sleeved on the outer side of the spiral rod, and a blood collection tube is installed on the lower end of the spiral rod.

[0006] Furthermore, in order to facilitate the adjustment of the extension distance of the blood collection tube, an adjustment thread groove is opened inside the support rod, and a through hole is opened at the upper end of the pen tube. An adjustment thread rod is slidably clamped inside the through hole, and the adjustment thread rod passes through the through hole and rotates and engages with the adjustment thread groove.

[0007] Furthermore, in order to facilitate the movement of the spiral rod, a positioning ring is fixedly installed on the inner side of the pen tube, and the gear ring is rotatably clamped in the interior of the positioning ring. A spiral hole is provided in the interior of the gear ring, and the spiral hole and the spiral rod are rotatably engaged with each other.

[0008] Furthermore, in order to facilitate the control of the position of the threaded rod, a connecting hole is opened on one side of the pen tube, a protective shell is provided on the outside of the connecting hole, an adjusting gear is rotatably installed inside the protective shell, the adjusting gear is meshed with the gear ring, and one side of the adjusting gear lacks some teeth.

[0009] Furthermore, in order to drive the adjusting gear to rotate, a mounting hole is opened at the center position of the upper surface of the protective shell, and an adjusting motor is fixedly installed on the upper surface of the protective shell. The output end of the adjusting motor passes through the mounting hole and is fixedly connected to the adjusting gear.

[0010] Furthermore, in order to facilitate the replacement of the blood collection tube, a slot is provided at the lower end of the spiral rod, a clamping block is fixedly installed at the upper end of the blood collection tube, the clamping block and the slot are slidably engaged with each other, and a collection port is provided at the lower end of the pen tube, and the position of the collection port corresponds to the position of the blood collection tube.

[0011] Furthermore, in order to quickly fix and install the blood collection tube, a rubber clamp is fixedly installed on the inner side of the opening of the clamping slot, and a positioning groove is opened on the outer side of the lower end of the clamping block, and the positioning groove and the rubber clamp are slidably engaged with each other.

[0012] Furthermore, in order to improve the convenience of users in operating the device, an installation port is opened on one side of the pen tube, a convenient door is hingedly installed on one side of the installation port, operation buttons are embedded on both sides of the pen tube, and a battery is fixedly installed inside the upper end of the pen tube, and the battery and the adjustment motor are electrically connected to each other.

[0013] The technical effects and advantages of the utility model are as follows: the gear ring can push the blood collection tube to move back and forth, so that the device can quickly store the blood collection tube, reducing the influence of the needle in the device on the outside world and improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model;

[0016] Figure 3It is a structural schematic diagram of the adjusting gear part in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the blood collection tube part of the utility model;

[0018] In the figure: 1. pen tube; 101. positioning ring; 102. protective shell; 103. adjusting gear; 104. adjusting motor; 105. convenient door; 106. operating button; 107. battery; 2. telescopic tube; 3. support rod; 301. adjusting threaded rod; 4. supporting spring; 5. spiral rod; 501. rubber clamp; 6. gear ring; 7. blood collection tube; 701. block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 As shown, a portable ejection blood collection pen comprises a pen tube 1, a telescopic tube 2 is fixedly installed on the inner upper surface of the pen tube 1, a support rod 3 is slidably clamped inside the telescopic tube 2, a support spring 4 is fixedly installed between the support rod 3 and the pen tube 1, a spiral rod 5 is fixedly installed at the lower end of the support rod 3, a gear ring 6 is sleeved on the outer side of the spiral rod 5, and a blood collection tube 7 is installed at the lower end of the spiral rod 5.

[0021] As a technical optimization solution of the utility model, an adjusting thread groove is opened inside the support rod 3, and a through hole is opened at the upper end of the pen tube 1. An adjusting thread rod 301 is slidably clamped inside the through hole. The adjusting thread rod 301 passes through the through hole and rotates and engages with the adjusting thread groove to facilitate the adjustment of the extension distance of the blood collection tube 7.

[0022] As a technical optimization solution of the utility model, a positioning ring 101 is fixedly installed on the inner side of the pen tube 1, and the gear ring 6 is rotatably engaged with the inside of the positioning ring 101. A spiral hole is provided inside the gear ring 6, and the spiral hole and the spiral rod 5 are rotatably engaged with each other to facilitate pushing the spiral rod 5 to move.

[0023] As a technical optimization solution of the utility model, a connecting hole is opened on one side of the pen tube 1, and a protective shell 102 is arranged on the outside of the connecting hole. An adjusting gear 103 is rotatably installed inside the protective shell 102. The adjusting gear 103 is meshed with the gear ring 6. One side of the adjusting gear 103 lacks some teeth to facilitate the control of the position of the threaded rod.

[0024] As a technical optimization solution of the utility model, a mounting hole is opened at the center position of the upper surface of the protective shell 102, and an adjusting motor 104 is fixedly installed on the upper surface of the protective shell 102. The output end of the adjusting motor 104 passes through the mounting hole and is fixedly connected to the adjusting gear 103 to facilitate pushing the adjusting gear 103 to rotate.

[0025] As a technical optimization solution of the utility model, a card slot is provided at the lower end of the spiral rod 5, and a card block 701 is fixedly installed at the upper end of the blood collection tube 7. The card block 701 and the card slot are slidably engaged with each other. A collection port is provided at the lower end of the pen tube 1, and the position of the collection port corresponds to the position of the blood collection tube 7, so as to facilitate the replacement of the blood collection tube 7.

[0026] As a technical optimization solution of the utility model, a rubber clamp ring 501 is fixedly installed on the inner side of the opening of the clamping slot, and a positioning groove is opened on the outer side of the lower end of the clamping block 701. The positioning groove and the rubber clamp ring 501 are slidably engaged with each other to facilitate the rapid fixed installation of the blood collection tube 7.

[0027] As a technical optimization solution of the present invention, an installation opening is opened on one side of the pen tube 1, and a convenient door 105 is hingedly installed on one side of the installation opening. Operation buttons 106 are inlaid on both sides of the pen tube 1, and a battery 107 is fixedly installed inside the upper end of the pen tube 1. The battery 107 and the adjustment motor 104 are electrically connected to each other to improve the convenience of users in operating the device.

[0028] When the utility model is in use, the user fully charges the battery 107, opens the convenient door 105, slides the blood collection tube 7 to be used into the inside of the card slot through the card block 701, and slides and snaps the rubber card ring 501 and the positioning slot into each other to fix the position of the blood collection tube 7, closes the convenient door 105, rotates the adjusting threaded rod 301, and generates a spiral force between the adjusting threaded rod 301, the spiral force pushes one end of the adjusting threaded rod 301 to extend into the inside of the adjusting thread slot, and then the spiral force pushes the support rod 3 to retract into the inside of the telescopic tube 2, the contraction of the telescopic tube 2 drives the spiral rod 5 to rise, and the rising of the spiral rod 5 drives the blood collection tube 7 to rise, until the blood collection tube 7 rises to an appropriate position. The adjustment motor 104 is turned on by the operating button 106 on one side to drive the adjustment gear 103 to rotate. The rotation of the adjustment gear 103 drives the gear ring 6 to rotate. The rotation of the gear ring 6 drives a spiral force to be generated between the spiral hole and the spiral rod 5. The spiral force pushes the spiral rod 5 to rise. The structure here is similar to the structure in the toy in which a three-leaf flying disc is rotated on the outside of the spiral rod 5, so that the force pushes the three-leaf flying disc to rotate and fly upward, until the adjustment gear 103 is rotated to be about to disengage from the gear ring 6. The position of the gear ring 6 is fixed by the adjustment gear 103, and then the position of the blood collection tube 7 is fixed.

[0029] The collection port of the device is fitted with the position to be collected, and the adjustment motor 104 is turned on to drive the adjustment gear 103 to rotate and disengage from the gear ring 6. The support rod 3 moves downward rapidly under the elastic force of the support spring 4. The movement of the support rod 3 drives the spiral rod 5 to move, and the movement of the spiral rod 5 drives the blood collection tube 7 to move until the lower end of the blood collection tube 7 extends to an appropriate length, piercing the patient's skin for blood collection. At this time, the outer side of the adjustment threaded rod 301 is fitted with the outer surface of the pen tube 1.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A portable ejection blood collection device, comprising a pen tube (1), characterized in that: A telescopic tube (2) is fixedly mounted on the inner upper surface of the pen tube (1); a support rod (3) is slidably engaged inside the telescopic tube (2); a support spring (4) is fixedly mounted between the support rod (3) and the pen tube (1); a spiral rod (5) is fixedly mounted on the lower end of the support rod (3); a gear ring (6) is sleeved on the outer side of the spiral rod (5); and a blood collection tube (7) is mounted on the lower end of the spiral rod (5).

2. A portable ejection blood collection device according to claim 1, characterized in that: An adjusting thread groove is provided inside the support rod (3), a through hole is provided at the upper end of the pen tube (1), an adjusting thread rod (301) is slidably engaged inside the through hole, and the adjusting thread rod (301) passes through the through hole and rotatably engages with the adjusting thread groove.

3. A portable ejection blood collection device according to claim 1, characterized in that: A positioning ring (101) is fixedly mounted on the inner side of the pen tube (1); the gear ring (6) is rotatably engaged with the interior of the positioning ring (101); a spiral hole is provided inside the gear ring (6); the spiral hole and the spiral rod (5) are rotatably engaged with each other.

4. The portable ejection blood collection device according to claim 1, characterized in that: A connecting hole is provided on one side of the pen tube (1), a protective shell (102) is provided on the outside of the connecting hole, an adjusting gear (103) is rotatably mounted inside the protective shell (102), the adjusting gear (103) and the gear ring (6) are meshed with each other, and one side of the adjusting gear (103) lacks some teeth.

5. The portable ejection blood collection device according to claim 4, characterized in that: A mounting hole is provided at the center of the upper surface of the protective shell (102); an adjusting motor (104) is fixedly mounted on the upper surface of the protective shell (102); an output end of the adjusting motor (104) passes through the mounting hole and is fixedly connected to the adjusting gear (103).

6. The portable ejection blood collection device according to claim 1, characterized in that: A slot is provided at the lower end of the spiral rod (5); a clamping block (701) is fixedly mounted at the upper end of the blood sampling tube (7); the clamping block (701) and the slot are slidably engaged with each other; a collection port is provided at the lower end of the pen tube (1); the position of the collection port corresponds to the position of the blood sampling tube (7).

7. The portable ejection blood collection device according to claim 6, characterized in that: A rubber clamping ring (501) is fixedly installed on the inner side of the opening of the clamping slot, and a positioning groove is provided on the outer side of the lower end of the clamping block (701), and the positioning groove and the rubber clamping ring (501) are slidably engaged with each other.

8. The portable ejection blood collection device according to claim 5, characterized in that: A mounting opening is provided on one side of the pen tube (1), a convenient door (105) is hingedly mounted on one side of the mounting opening, operating buttons (106) are inlaid on both sides of the pen tube (1), a storage battery (107) is fixedly mounted inside the upper end of the pen tube (1), and the storage battery (107) and the regulating motor (104) are electrically connected to each other.

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