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CN-121971086-A - A composite functional oversleeve for assisting blood sampling of blood cell separation machine

CN121971086ACN 121971086 ACN121971086 ACN 121971086ACN-121971086-A

Abstract

The invention discloses a composite functional oversleeve for assisting blood sampling of a blood cell separator, which relates to the technical field of medical auxiliary appliances, and one of core factors influencing blood sampling speed is blood flow of peripheral veins, wherein the blood flow is influenced by vascular conditions, limb temperature, vasomotor state and the like. The tourniquet has uncontrollable compression force, long-term use of the tourniquet has the risk of nerve injury, the hot water bag has uncontrollable temperature, is easy to scald or cool quickly, cannot maintain constant temperature, has irregular fist making action, is easy to fatigue of patients, and cannot provide continuous and stable blood flow promoting effect. The invention provides a composite functional oversleeve for assisting blood sampling of a blood cell separator, which comprises an oversleeve, wherein the oversleeve comprises a compression assembly, a main body heating assembly and a tail end flow promoting assembly which are sequentially connected, a puncture window is arranged on the main body heating assembly, the functions of pressurization, heat preservation and passive holding are integrated, the blood flow state and the compression pressure of limbs are sensed in real time, and the oversleeve is intelligently regulated and matched with the blood sampling flow of the blood cell separator.

Inventors

  • ZHAO NA
  • LONG ZHIGUO
  • PAN CHUNMEI

Assignees

  • 上海市浦东医院（复旦大学附属浦东医院）

Dates

Publication Date
20260505
Application Date
20260120

Claims (10)

  1. 1. The multifunctional oversleeve for assisting blood sampling of a blood cell separator comprises an oversleeve and is characterized by comprising a pressing assembly (1), a main body heating assembly (2) and a tail end flow promoting assembly (3) which are sequentially connected, wherein a puncture window is arranged on the main body heating assembly (2).
  2. 2. The composite functional sleeve for assisting blood sampling of a blood cell separator according to claim 1, wherein the compression assembly (1) comprises a connecting belt (101), magic tapes (102) are arranged on two sides of the connecting belt (101), a pressure sensor is arranged on the inner side of the connecting belt (101), and the width of the connecting belt (101) is 1.5-2cm.
  3. 3. The composite functional sleeve for assisting blood sampling of a blood cell separator according to claim 2, wherein the main body heating component (2) comprises a surrounding cloth (201) connected with a connecting belt (101), magic tapes (102) are arranged on two sides of the surrounding cloth (201), and two grooves (202) are symmetrically arranged in the middle section of the surrounding cloth (201).
  4. 4. A multifunctional sleeve for assisting blood collection from a blood cell separator according to claim 3, wherein the main body warming assembly (2) comprises a heating system.
  5. 5. A complex functional cuff for assisting in the collection of blood from a blood cell separator according to claim 4 wherein the heating system comprises a temperature sensor, a control unit (203) and a power cord.
  6. 6. The multifunctional sleeve for assisting blood sampling of a blood cell separator according to claim 5, wherein the surrounding cloth (201) is provided with a plurality of layers from inside to outside, namely a skin-friendly layer (201-1), a heating layer (201-2) and a heat preservation layer (201-3) in sequence, and the temperature sensor is positioned between the heating layer (201-2) and the skin-friendly layer (201-1).
  7. 7. A complex functional cuff for assisting in the blood collection of a blood cell separator according to claim 6, wherein the main body warming assembly (2) further comprises a blood flow monitoring unit disposed inside the wrapping cloth (201), the blood flow monitoring unit being in communication with the control unit (203).
  8. 8. A multifunctional sleeve for assisting blood sampling of a blood cell separator according to claim 7, wherein the terminal flow promoting assembly (3) comprises a hand support plate (304) connected with a wrapping cloth (201), a flexible block (301) is arranged on the hand support plate (304), and the flexible block (301) is connected with the hand support plate (304) through constraint belts (305) on two sides.
  9. 9. The composite functional sleeve for assisting blood sampling of a blood cell separator according to claim 8, wherein the hand support plate (304) is further provided with a micro air pump (302) and a flexible driving bag (303), the flexible driving bag (303) is arranged between the flexible block (301) and the hand support plate (304), and the micro air pump (302) is connected with the flexible driving bag (303) and is communicated with the interior of the flexible driving bag.
  10. 10. A complex function cuff for assisting in the collection of blood from a blood cell separator according to claim 9 wherein the flexible block (301) is provided with an alarm and the control unit (203) is communicatively coupled to the alarm.

Description

A composite functional oversleeve for assisting blood sampling of blood cell separation machine Technical Field The invention relates to the technical field of medical auxiliary appliances, in particular to a composite functional oversleeve for assisting a blood cell separator to collect blood. Background Blood cell separation (CYTAPHERESIS) is an important treatment and collection technology in modern medical treatment and is widely applied to the fields of single blood collection platelets, plasma exchange, peripheral blood mononuclear cell collection, white blood cell removal, stem cell collection and the like. The current main blood cell separator (such as COM. TEC of OPTIA, fresenius of Terumo BCT) adopts a centrifugal separation principle, and the working flow of the blood cell separator is that blood is led out through a peripheral great vein such as a median vein of an elbow and the like, enters the separator for centrifugation, and after target components are separated, the rest blood components are returned to a patient. The efficiency and patient comfort of this process is highly dependent on the speed of blood collection. The too slow blood sampling speed can directly lead to the extension of the whole collection process time, which not only reduces the utilization efficiency of medical equipment and the working efficiency of medical staff, but also brings a plurality of bad experiences to patients, such as fatigue and anxiety caused by long-time forced lying in bed, numbness and stiffness caused by long-time keeping of the blood sampling side limbs in a fixed posture, and the occurrence probability of anticoagulant reaction (such as citrate reaction) is increased due to the extension of the duration time. One of the central factors affecting the blood collection rate is the blood flow in the peripheral veins. The blood flow is affected by factors such as vascular conditions, limb temperature, vasomotor status, etc. In clinical practice, operators often employ some physical method to temporarily increase blood flow, such as: (1) The tourniquet is bound at the proximal end of the arm at the blood collection side, namely, by pressing veins, the return flow of venous blood is slowed down, and the distal veins are inflated and expanded, so that puncture is facilitated, and the initial blood flow is increased. (2) The local hot compress is to warm the blood taking limb with a hot water bag or a hot towel, relax local blood vessel by using the principle of thermal expansion and contraction, reduce blood viscosity, and increase blood flow velocity. (3) The patient is instructed to make a fist intermittently by contracting muscles to squeeze blood vessels and simulate the action of a pump to promote blood flow. However, there is currently a lack of an integrated, standardized specialized apparatus to safely, effectively, and consistently implement the above-described methods. The traditional tourniquet has obvious defects that the compression force of the traditional tourniquet is uncontrollable, the risk of nerve injury exists when the tourniquet is used for a long time, the comfort level of a patient is poor, the temperature of a hot water bag is uncontrollable, scalding is easy to occur or the tourniquet is cooled quickly, the constant optimal temperature cannot be maintained, the fist making action is irregular, the patient is easy to fatigue, and the continuous and stable blood flow promoting effect cannot be provided. Disclosure of Invention Aiming at the problems, the invention aims to provide the composite functional oversleeve for assisting the blood sampling of the blood cell separator, which can integrate the functions of pressurization, heat preservation and passive holding, introduce an intelligent feedback and cooperative control mechanism, integrate a blood flow monitoring module and a pressure sensing unit, sense the blood flow state and the compression pressure of limbs in real time, realize active intelligent regulation, further realize data sharing with the blood cell separator, realize real-time regulation, realize perfect matching, safely, efficiently and comfortably promote the blood sampling speed and optimize the whole acquisition experience. The main idea of the technical scheme adopted by the invention is that a pressing component with adjustable pressure, a main body heating component and a terminal flow promoting component are sequentially arranged from a near-core end to a far-core end by designing a sectional type oversleeve; the compression assembly is arranged at the position of the upper arm of the patient, which is close to the elbow joint, and comprises a connecting belt, wherein the inner side of the connecting belt is provided with a pressure sensing unit, two ends of the connecting belt are connected through velcro on two sides to realize stepless regulation of surrounding limbs, so that medical staff can accurately adjust the tightness according to individual condi