Closed venous blood sampling indwelling needle
By using rubber sleeves and rubber pads in the intravenous indwelling needles, and keeping the heparin cap clean and dry through the isolation structure, the needle seat hardness and heparin cap cleaning problems are solved, improving patient comfort and the service life of the equipment.
Patent Information
- Application Number
- CN202420999968.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The needle holder of the existing intravenous indwelling needle is relatively hard, and the patient's limbs are uncomfortable after long-term squeeze, and the heparin cap is difficult to keep clean and dry, which affects the service life.
A closed intravenous blood collection needle is designed, using a rubber sleeve and rubber pad to flexible contact with the patient's skin, and keep the heparin cap clean and dry through an isolation structure and protective components.
It improves the comfort of patients during blood collection and the stability of the needle holder, prevents the needle from harming medical staff, and extends the service life of the heparin cap.
Smart Images
Figure CN222549855U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of venous indwelling needles, and more specifically, particularly relates to a closed venous blood sampling indwelling needle. Background Art
[0002] The intravenous indwelling needle is composed of a stainless steel core, a soft outer sleeve and a plastic needle seat; during puncture, the outer sleeve and the needle core are inserted into the blood vessel together, and when the sleeve is inserted into the blood vessel, the needle core is pulled out; the intravenous indwelling needle is a tool for infusion and blood collection.
[0003] When using an existing intravenous catheter, the catheter is directly fixed to the patient's limb with medical tape. Since the needle seat of the catheter is made of plastic, it has a high hardness. Therefore, the hard needle seat will squeeze the patient's limb for a long time, causing the patient to feel uncomfortable. In addition, the heparin cap of the current catheter is usually directly exposed to the outside. Therefore, during the patient's use, the heparin cap may not be kept clean and dry, which may affect the service life of the heparin cap. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a closed venous blood collection indwelling needle to solve the problem proposed in the above background technology that the needle seat with a high hardness squeezes the patient's limbs for a long time, causing the patient to feel uncomfortable; and the heparin cap cannot be kept clean and dry, affecting the service life of the heparin cap.
[0005] The utility model discloses a closed venous blood collection indwelling needle, which is achieved by the following specific technical means:
[0006] A closed venous blood sampling indwelling needle comprises a needle seat; a needle is fixedly arranged inside the end of the needle seat, and a fixing tube is fixedly arranged inside one side of the needle seat in an inclined structure, and the fixing tube is communicated with the needle through the needle seat; a connecting hose is fixedly arranged inside the fixing tube, and a stopper clamp is movably arranged outside the connecting hose, and a positive pressure joint is fixedly arranged outside the end of the connecting hose; a fixing ring is fixedly arranged outside the needle seat;
[0007] An auxiliary component is fixedly arranged on the outer side of the needle seat, and a protective component is fixedly arranged on one side of the positive pressure joint; a connecting structure is fixedly arranged on the outer side of the positive pressure joint, and an isolation structure is fixedly arranged on the inner side of the connecting structure; the auxiliary component includes: a rubber sleeve; the rubber sleeve is placed on the outer side of the needle seat, and the outer side of the rubber sleeve is in contact with the outer side of the fixing ring, and the rubber sleeve is arranged in a T shape.
[0008] In at least some embodiments, a side tube is fixedly provided on one side of the positive pressure connector, and a cap is fixedly provided on the end of the side tube through a threaded connection; a threaded ring is fixedly provided on the end of the positive pressure connector, and a heparin cap is fixedly provided on the outer side of the threaded ring through a threaded connection.
[0009] In at least some embodiments, the auxiliary component also includes: a rubber pad and an auxiliary groove; the rubber pad is fixedly arranged at the bottom of the rubber sleeve, and the bottom of the rubber pad is arranged as a bevel structure; the auxiliary groove is opened inside the bottom side of the rubber pad, and the auxiliary groove is opened in a straight line.
[0010] In at least some embodiments, the protective assembly includes: a connecting strip, a fixed tube and a rubber tube; the connecting strip is fixedly arranged on the outside of the positive pressure joint; the fixed tube is fixedly arranged on the outside of the connecting strip; the rubber tube is fixedly arranged inside the fixed tube, and a needle is movably arranged inside the rubber tube.
[0011] In at least some embodiments, the connection structure includes: a connecting ring, an elastic sheet and a locking block; the connecting ring is fixedly arranged on the outside of the positive pressure joint; the elastic sheet is fixedly arranged on the outside of the connecting ring, and the elastic sheets are arranged in a ring array; the locking block is fixedly arranged on the inside of the elastic sheet, and the inner side of one end of the locking block is arranged as a bevel structure.
[0012] In at least some embodiments, the isolation structure includes: an isolation tube and a locking hole; the isolation tube is movably arranged on the outside of the connecting ring, and the isolation tube is located on the outside of the heparin cap; the locking holes are opened in a circular array inside the isolation tube, and a locking block is slidably arranged inside the locking holes.
[0013] In at least some embodiments, the isolation structure further includes: an isolation pad; the isolation pad is fixedly disposed inside the isolation tube, and the outer side of the isolation pad is in contact with the end of the heparin cap; the isolation pad is made of latex material, and the isolation pad has a certain degree of elasticity.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. In the utility model, by providing a rubber sleeve and a rubber pad, the needle seat can be in flexible contact with the patient's skin, ensuring the patient's comfort during blood collection; at the same time, the use of linear auxiliary grooves can enable the rubber pad to bend freely better, which is conducive to making the rubber pad highly fit the patient's skin, ensuring the stability of the needle seat when fixed; and can ensure air circulation on the patient's skin surface.
[0016] 2. In the present invention, by providing a rubber tube, the needle can be inserted into the rubber tube before or after use; this helps prevent the needle from causing harm to medical staff and ensures the practicality of the indwelling needle.
[0017] 3. In the utility model, by providing an elastic sheet, a locking block and a bevel structure at the end thereof, the locking block can automatically slide into the locking hole; it is beneficial to fix, install and disassemble the isolation tube; it is beneficial to isolate the heparin cap from the outside world after use; it can keep the heparin cap clean and dry, which is beneficial to avoid friction stimulation of the heparin cap; and it ensures the service life of the heparin cap. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0019] Figure 2 It is a schematic diagram of the disassembled structure of the positive pressure connector and the heparin cap of the utility model.
[0020] Figure 3 It is a schematic diagram of the overall structure of the auxiliary components of the utility model.
[0021] Figure 4 It is a schematic diagram of the overall structure of the protective component of the utility model.
[0022] Figure 5 It is an overall structural schematic diagram of the connection structure of the utility model.
[0023] Figure 6 It is a schematic cross-sectional structure diagram of the isolation cylinder of the utility model.
[0024] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:
[0025] 1. needle seat; 101. needle; 102. fixing tube; 103. connecting hose; 104. stop clamp; 105. positive pressure connector; 106. side tube; 107. cap; 108. threaded ring; 109. heparin cap; 1010. fixing ring;
[0026] 2. Auxiliary components; 201. Rubber sleeve; 202. Rubber pad; 203. Auxiliary groove;
[0027] 3. Protective assembly; 301. Connecting strip; 302. Fixing tube; 303. Rubber tube;
[0028] 4. Connecting structure; 401. Connecting ring; 402. Elastic sheet; 403. Locking block;
[0029] 5. Isolation structure; 501. Isolation cylinder; 502. Isolation pad; 503. Locking hole. DETAILED DESCRIPTION
[0030] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.
[0031] Embodiment 1:
[0032] As attached Figure 1 To Attachment Figure 6 As shown:
[0033] The utility model provides a closed venous blood sampling indwelling needle, comprising a needle seat 1; a needle 101 is fixedly arranged inside the end of the needle seat 1, and a fixed tube 102 is fixedly arranged inside one side of the needle seat 1 in an inclined structure, and the fixed tube 102 is communicated with the needle 101 through the needle seat 1; a connecting hose 103 is fixedly arranged inside the fixed tube 102, and a stopper clamp 104 is movably arranged on the outside of the connecting hose 103, and a positive pressure joint 105 is fixedly arranged on the outside of the end of the connecting hose 103; a fixing ring 1010 is fixedly arranged on the outside of the needle seat 1;
[0034] In the embodiment of the present disclosure, an auxiliary component 2 is fixedly provided on the outer side of the needle seat 1, and a protective component 3 is fixedly provided on one side of the positive pressure joint 105; a connecting structure 4 is fixedly provided on the outer side of the positive pressure joint 105, and an isolation structure 5 is fixedly provided on the inner side of the connecting structure 4; the auxiliary component 2 includes: a rubber sleeve 201, a rubber pad 202 and an auxiliary groove 203; the rubber sleeve 201 is sleeved on the outer side of the needle seat 1, and the outer side of the rubber sleeve 201 is in contact with the outer side of the fixing ring 1010, and the rubber sleeve 201 is set in a T shape; the rubber pad 202 is fixedly provided at the bottom of the rubber sleeve 201, and the bottom of the rubber pad 202 is set as a bevel structure; the auxiliary groove 203 is opened inside the bottom side of the rubber pad 202, and the auxiliary groove 2 03 are arranged in a straight line; a side tube 106 is fixedly provided on one side of the positive pressure joint 105, and a cap 107 is fixedly provided on the end of the side tube 106 through a threaded connection; a threaded ring 108 is fixedly provided on the end of the positive pressure joint 105, and a heparin cap 109 is threadedly provided on the outer side of the threaded ring 108; its specific functions are: by providing a rubber sleeve 201 and a rubber pad 202, the needle seat 1 can be flexibly contacted with the patient's skin, thereby ensuring the patient's comfort during blood collection; at the same time, by utilizing the linearly arranged auxiliary grooves 203, the rubber pad 202 can be better bent freely, which is beneficial for the rubber pad 202 to be highly fitted with the patient's skin, thereby ensuring the stability of the needle seat 1 when fixed.
[0035] Embodiment 2:
[0036] As attached Figure 2 With attached Figure 3 As shown: on the basis of embodiment 1, the protection component 3 includes: a connecting strip 301, a fixed tube 302 and a rubber tube 303; the connecting strip 301 is fixedly arranged on the outside of the positive pressure joint 105; the fixed tube 302 is fixedly arranged on the outside of the connecting strip 301; the rubber tube 303 is fixedly arranged inside the fixed tube 302, and the needle 101 is movably arranged inside the rubber tube 303, and the inner diameter of the rubber tube 303 is smaller than the outer diameter of the needle 101; its specific function is: by providing the rubber tube 303, the needle 101 can be inserted into the rubber tube 303 before or after use; it is helpful to prevent the needle 101 from causing harm to medical staff.
[0037] Embodiment three:
[0038] As attached Figure 1 , Attachment Figure 5 With attached Figure 6 As shown: on the basis of the first and second embodiments, the connection structure 4 comprises: a connection ring 401, an elastic sheet 402 and a locking block 403; the connection ring 401 is fixedly arranged on the outside of the positive pressure joint 105; the elastic sheet 402 is fixedly arranged on the outside of the connection ring 401, and the elastic sheet 402 is arranged in a ring array; the locking block 403 is fixedly arranged on the inside of the elastic sheet 402, and the inner side of one end of the locking block 403 is arranged as a bevel structure; the isolation structure 5 comprises: an isolation cylinder 501, an isolation pad 502 and a locking hole 503; the isolation cylinder 501 is movably arranged on the outside of the connection ring 401, and the isolation cylinder 501 is located on the outside of the heparin cap 109; the locking hole 50 3 is arranged in an annular array inside the isolation cylinder 501, and a locking block 403 is slidably arranged inside the locking hole 503; the isolation pad 502 is fixedly arranged inside the isolation cylinder 501, and the outer side of the isolation pad 502 is in contact with the end of the heparin cap 109; the isolation pad 502 is set to a latex material, and the isolation pad 502 has a certain elasticity; its specific functions are: by providing the elastic sheet 402 and the locking block 403 and the bevel structure at the end thereof, the locking block 403 can automatically slide into the locking hole 503; it is conducive to the fixed installation and disassembly of the isolation cylinder 501; it is conducive to isolating the heparin cap 109 from the outside after the heparin cap 109 is used.
[0039] The specific usage and function of this embodiment are as follows:
[0040] In the utility model, when in use, the needle 101 is pulled out from the rubber tube 303, and then the needle 101 is inserted into the vein, so that the bottom of the rubber pad 202 fits the patient's skin, and the rubber pad 202 uses the linear auxiliary groove 203 to highly fit the patient's skin; the rubber pad 202 uses the bottom tilting structure to make the needle seat 1 tilted, and then the needle seat 1 is adhered to the patient's limbs with medical tape; the tilted needle seat 1 can prevent the tail of the needle 101 from tilting; then the blood collection needle is inserted into the heparin cap 109 to collect blood; when the blood is collected When finished, slide the isolation tube 501 to the outside of the connecting ring 401, so that the isolation tube 501 squeezes the locking block 403, and the locking block 403 bends the elastic sheet 402 through the end bevel structure; when the outside of the isolation tube 501 fits with the outside of the connecting ring 401, the elastic sheet 402 uses its own elastic force to drive the locking block 403 to slide into the locking hole 503, so that the isolation tube 501 isolates the heparin cap 109; the isolation pad 502 is used to isolate the end of the heparin cap 109; the flow-stop clamp 104 can be used to control the flow of the connecting hose 103.
Claims
1. A closed venous blood collection indwelling needle, characterized in that: include: A needle seat (1); a needle (101) is fixedly arranged inside the end of the needle seat (1), and a fixing tube (102) is fixedly arranged inside one side of the needle seat (1) in an inclined structure, and the fixing tube (102) is communicated with the needle (101) through the needle seat (1); a connecting hose (103) is fixedly arranged inside the fixing tube (102), and a stopper clamp (104) is movably arranged outside the connecting hose (103), and a positive pressure joint (105) is fixedly arranged outside the end of the connecting hose (103); a fixing ring (1010) is fixedly arranged outside the needle seat (1); An auxiliary component (2) is fixedly arranged on the outside of the needle seat (1), and a protective component (3) is fixedly arranged on one side of the positive pressure joint (105); a connecting structure (4) is fixedly arranged on the outside of the positive pressure joint (105), and an isolation structure (5) is fixedly arranged on the inside of the connecting structure (4); the auxiliary component (2) comprises: a rubber sleeve (201); the rubber sleeve (201) is sleeved on the outside of the needle seat (1), and the outside of the rubber sleeve (201) is in contact with the outside of the fixing ring (1010), and the rubber sleeve (201) is arranged in a T shape.
2. The closed venous blood sampling indwelling needle according to claim 1, characterized in that: A side tube (106) is fixedly provided on one side of the positive pressure joint (105), and a cap (107) is fixedly provided on the end of the side tube (106) via a threaded connection; a threaded ring (108) is fixedly provided on the end of the positive pressure joint (105), and a heparin cap (109) is fixedly provided on the outside of the threaded ring (108) via a threaded connection.
3. The closed venous blood sampling indwelling needle according to claim 1, characterized in that: The auxiliary component (2) further comprises: a rubber pad (202) and an auxiliary groove (203); the rubber pad (202) is fixedly arranged at the bottom of the rubber sleeve (201), and the bottom of the rubber pad (202) is arranged as a bevel structure; the auxiliary groove (203) is opened inside the bottom side of the rubber pad (202), and the auxiliary groove (203) is opened in a straight line arrangement.
4. The closed venous blood sampling indwelling needle according to claim 1, characterized in that: The protection component (3) comprises: a connecting strip (301), a fixing tube (302) and a rubber tube (303); the connecting strip (301) is fixedly arranged on the outside of the positive pressure joint (105); the fixing tube (302) is fixedly arranged on the outside of the connecting strip (301); the rubber tube (303) is fixedly arranged inside the fixing tube (302), and a needle (101) is movably arranged inside the rubber tube (303).
5. The closed venous blood sampling indwelling needle according to claim 2, characterized in that: The connection structure (4) comprises: a connection ring (401), an elastic sheet (402) and a locking block (403); the connection ring (401) is fixedly arranged on the outside of the positive pressure joint (105); the elastic sheet (402) is fixedly arranged on the outside of the connection ring (401), and the elastic sheets (402) are arranged in a ring array; the locking block (403) is fixedly arranged on the inside of the elastic sheet (402), and the inside of one end of the locking block (403) is arranged as a bevel structure.
6. The closed venous blood sampling indwelling needle according to claim 5, characterized in that: The isolation structure (5) comprises: an isolation cylinder (501) and a locking hole (503); the isolation cylinder (501) is movably arranged outside the connecting ring (401), and the isolation cylinder (501) is located outside the heparin cap (109); the locking holes (503) are arranged in an annular array inside the isolation cylinder (501), and a locking block (403) is slidably arranged inside the locking holes (503).
7. The closed venous blood collection indwelling needle according to claim 6, characterized in that: The isolation structure (5) further comprises: an isolation pad (502); the isolation pad (502) is fixedly arranged inside the isolation tube (501), and the outer side of the isolation pad (502) is in contact with the end of the heparin cap (109); the isolation pad (502) is made of latex material, and the isolation pad (502) has a certain elasticity.