一种造血干细胞采集手肘及导管固定装置
By designing adjustable lower and upper arm fixation components and a fixation device with pressure and heating functions, the problems of arm movement and catheter swaying in existing technologies have been solved, achieving a stable and comfortable hematopoietic stem cell collection process and improving collection efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
- Filing Date
- 2025-03-25
- Publication Date
- 2026-07-17
AI Technical Summary
The existing peripheral blood hematopoietic stem cell collection process is time-consuming, requiring the patient to maintain a fixed posture for an extended period, which can easily lead to arm movement or catheter swaying, affecting collection efficiency and comfort. Furthermore, the existing fixation devices cannot adapt to the differences in body structure and catheter fixation requirements of different patients.
A fixing device including a lower arm fixing component and an upper arm fixing component was designed. The lower arm support plate and the upper arm support plate are rotatably connected. It is equipped with a pressure component and a heating layer. The lower arm is attached to the conduit channel fixing strap through adhesive bonding to achieve stable fixation of the arm and the conduit. It can adapt to different posture habits of the subjects to be collected, and improves comfort and collection efficiency through pressure and heating layers.
It improves arm stability and comfort, prevents catheter displacement, ensures a smooth collection process, enhances collection efficiency and quality, adapts to the needs of different individuals, and reduces the risk of skin discomfort.
Smart Images
Figure CN224505445U_ABST
Abstract
Claims
1. A device for fixing the elbow and catheter during hematopoietic stem cell collection, characterized in that, include: The lower arm fixing assembly includes: Lower arm support plate (1); The lower arm fixing strap (3) is provided on the lower arm support plate (1) to fix the lower arm of the person to be collected. A conduit access fixing strap (2) is provided on the lower arm support plate (1). The conduit access fixing strap (2) is bonded to the lower arm fixing strap (3). The conduit access is fixed by placing it between the conduit access fixing strap (2) and the lower arm fixing strap (3). Upper arm fixation components include: The upper arm support plate (9) is rotatably connected to the lower arm support plate (1); An upper arm fixing strap (4) is provided on the upper arm support plate (9) to fix the upper arm of the person to be collected.
2. The collection elbow and catheter securement device of claim 1, wherein, The fixing device also includes a pressurizing assembly, which includes an airbag cuff (7) disposed on the upper arm support plate (9) and a pressurizing airbag (8) connected to the airbag cuff (7).
3. The collection elbow and catheter securement device of claim 1, wherein, The lower arm support plate (1) and the upper arm support plate (9) are both provided with a heating layer (6) on the side that contacts the subject to be collected.
4. The collection hand and catheter securement device of claim 3, wherein the hand and catheter securement device further comprises a strap. Both the lower arm support plate (1) and the upper arm support plate (9) are provided with ventilation holes.
5. The collection elbow and catheter securement device of claim 1, wherein, The lower arm support plate (1) and the upper arm support plate (9) are hinged together by a hinge located between them.
6. The collection hand and catheter securement device of claim 5, wherein the hand and catheter securement device further comprises a strap. The rotation range between the lower arm support plate (1) and the upper arm support plate (9) is 120° to 180°.
7. The collection hand and catheter securement device of claim 5, wherein the hand and catheter securement device further comprises a strap. The hinge includes a first hinge piece (10) provided on the lower arm support plate (1) and a second hinge piece (12) provided on the upper arm support plate (9), wherein the first hinge piece (10) and the second hinge piece (12) are hinged together. The first hinge piece (10) has multiple through holes spaced apart along the circumference and a limiting protrusion (11) at the end of the multiple through holes. The second hinge piece (12) has a semi-circular fixing groove (13) at one end and abuts against the limiting protrusion (11) at the other end. When the fixing groove (13) slides through the multiple through holes (14) in sequence, the rotation amplitude between the first hinge piece (10) and the second hinge piece is changed. When bolts pass through the fixing groove (13) and the through holes (14) in sequence, the positions of the first hinge piece (10) and the second hinge piece (12) are fixed.
8. The collection elbow and catheter securement device of claim 1, wherein, The lower arm fixing strap (3) includes a first lower arm fixing sub-strap (15) provided on one side of the lower arm support plate (1) and a second lower arm fixing sub-strap (16) provided on the other side of the lower arm support plate (1), and the two are bonded together.
9. A hematopoietic stem cell collection elbow and catheter fixation device according to claim 8, characterized in that, The catheter access fixation strap (2) is attached to the first lower arm fixation strap (15).
10. The collection elbow and catheter securement device of claim 1, wherein, The upper arm fixing strap (4) includes a first upper arm fixing sub-strap (17) located on one side of the upper arm support plate (9) and a second upper arm fixing sub-strap (18) located on the other side of the upper arm support plate (9), which are bonded together.