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CN-224220143-U - Prevent loose blood sampling needle holder of port

CN224220143UCN 224220143 UCN224220143 UCN 224220143UCN-224220143-U

Abstract

The utility model discloses a blood sampling needle holder capable of preventing port from loosening, which relates to the technical field of medical appliances and comprises a cylinder body, wherein the bottom of the cylinder body is fixedly connected with an extension seat, the upper end fixedly connected with of barrel links up the seat, the upper end fixedly connected with of linking seat is used for installing the grip slipper of blood taking needle, just the diameter at grip slipper top is less than the diameter of grip slipper bottom. According to the utility model, through the expansion groove and the positioning blocks, the blood taking needle is inserted into the clamping seat from one side of the positioning blocks, the conical nut sleeved on the clamping seat is rotated, so that the top of the clamping seat is gradually tightened, and finally, the outer walls of the blood taking needle are simultaneously clamped and fixed by the positioning blocks, and the clamping force formed between the positioning blocks at the end parts can be flexibly controlled along with the adjustment of the positions of the conical nut, thereby effectively avoiding the phenomena of loose ports and the like, improving the installation stability of the blood taking needle, and avoiding the blood taking needle from shifting or shaking in the puncturing process so as to influence the blood taking efficiency.

Inventors

  • YAN CHANGHAI

Assignees

  • 渊隆（上海）生物科技有限公司

Dates

Publication Date
20260512
Application Date
20250115

Claims (6)

  1. 1. The utility model provides a prevent loose blood sampling needle holder of port, includes barrel (1), its characterized in that, the bottom fixedly connected with of barrel (1) extends seat (11), the upper end fixedly connected with of barrel (1) links up seat (12), the upper end fixedly connected with of linking seat (12) is used for installing clamping seat (3) of blood sampling needle, just the diameter at clamping seat (3) top is less than the diameter of clamping seat (3) bottom, be provided with external screw thread (31) on the lateral wall of clamping seat (3); The clamping seat (3) is provided with a conical nut (5) in a sleeved mode on a threaded portion corresponding to the external thread (31), the diameter of the top of the conical nut (5) is smaller than that of the bottom of the conical nut (5), the conical nut (5) is cooperated with the clamping seat (3) to realize rapid disassembly of the blood taking needle, the top of the conical nut (5) is fixedly connected with an assembly plate (52), and the bottom of the conical nut (5) is fixedly connected with a reinforcing plate (53).
  2. 2. The port-relaxation-preventing blood sampling needle holder according to claim 1, wherein an annular seat (2) is fixedly connected to the inner top of the cylinder (1), and the diameter of the annular seat (2) is equal to the diameter of a through groove formed in the top of the cylinder (1); The bottom of annular seat (2) fixedly connected with limiting plate (21), the diameter of limiting plate (21) is less than the diameter of annular seat (2).
  3. 3. The port-slack-preventing lancet holder according to claim 1, wherein a thread groove (51) is formed in an inner wall of the cone nut (5), and the thread groove (51) has a size corresponding to that of the external thread (31).
  4. 4. The port-relaxation-preventing blood sampling needle holder according to claim 1, wherein the clamping seat (3) is provided with partition plates in a separated mode through a plurality of expansion grooves (32) formed in the circumferential direction, and the tops of the partition plates are provided with spherical pads (33).
  5. 5. The port-relaxation-preventing blood sampling needle holder of claim 4, wherein the tops of the partition plates are fixedly connected with positioning blocks (4) respectively, and the positioning blocks (4) are vertically arranged relative to the cylinder body (1).
  6. 6. The port-slack-preventing lancet holder according to claim 5, wherein a plurality of adhesive tapes (41) are provided on the side walls of the positioning block (4), respectively.

Description

Prevent loose blood sampling needle holder of port Technical Field The utility model relates to the technical field of medical equipment, in particular to a blood sampling needle holder capable of preventing port from loosening. Background The blood taking needle holder is a medical instrument playing a key role in the blood taking process, is generally made of medical materials such as plastics, is provided with a device capable of fixing a blood taking needle, and generally comprises a needle seat fixing part, the needle seat of the blood taking needle can be firmly clamped by the needle seat fixing part, so that the blood taking needle can not shake easily in the use process, the vein can be accurately penetrated, when a medical staff holds the blood taking needle holder and punctures the blood taking needle into the vein, the other end of the blood taking needle is connected with the blood taking tube, and blood flows into the blood taking tube by utilizing the blood pressure of the vein and the negative pressure in the blood taking tube. In clinical blood inspection of medical treatment project, blood sampling needle holder can be frequently used, with inserting and extracting the blood taking needle many times, can produce certain wearing and tearing to the port to lead to current port clamping structure to lose its original clamping force gradually, can't be closely fixed after inserting, appear not hard up phenomenon easily, lead to taking place to shift or rock at puncture in-process blood taking needle, increased the risk of puncture failure, and can lead to blood taking needle and heparin tube's connection not closely, blood can leak from the junction when the blood sampling, pollute the blood sampling environment, influence the efficiency of blood sampling. In view of the above, the present application provides a blood sampling needle holder capable of preventing port from loosening. Disclosure of utility model The utility model aims to solve the defects in the prior art and provides a blood sampling needle holder capable of preventing port from loosening. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a prevent loose blood sampling needle holder of port, includes the barrel, the bottom fixedly connected with extension seat of barrel, the upper end fixedly connected with of barrel links up the seat, the upper end fixedly connected with of linking seat is used for installing the grip block of blood taking needle, just the diameter at grip block top is less than the diameter at grip block bottom, be provided with the external screw thread on the lateral wall of grip block; the clamping seat is provided with a conical nut in a sleeved mode on a threaded portion corresponding to the external threads, the diameter of the top of the conical nut is smaller than that of the bottom of the conical nut, the conical nut cooperates with the clamping seat to achieve rapid disassembly of the blood taking needle, the top of the conical nut is fixedly connected with an assembly plate, and the bottom of the conical nut is fixedly connected with a reinforcing plate. As a further preferable mode of the technical scheme, the inner top of the cylinder is fixedly connected with an annular seat, and the diameter of the annular seat is equal to the diameter of a through groove formed in the top of the cylinder; The bottom fixedly connected with limiting plate of annular seat, the diameter of limiting plate is less than the diameter of annular seat, through the limiting plate that sets up, when placing the blood taking needle in to the barrel, makes blood taking needle one end needle file and limiting plate lateral wall contact, can accomplish the location to the blood taking needle fast to make extend to the outside blood taking needle head of barrel keep suitable length. As the further preferred of this technical scheme, the screw thread groove has been seted up on the inner wall of cone nut, just the size of screw thread groove is corresponding with the size of external screw thread, through the interlock between external screw thread and the screw thread groove, can provide the auto-lock nature between grip slipper and cone nut, avoid moving in the in-process cone nut that uses, further, if need use the blood taking needle of same specification in the clinical blood inspection project of medical treatment, can slightly twist cone nut, cone nut passes through shorter stroke, the locating piece contact of drive tip is spacing to the blood taking needle, can accomplish the change with the blood taking needle fast, the simple operation just uses manpower sparingly, improve blood taking efficiency. As the further preferred of this technical scheme, the grip slipper separates through a plurality of expansion grooves that circumference offered and is provided with the partition board, the top of partition board all is provided with spherical