Blood vessel flowmeter probe

Abstract

The utility model discloses a blood vessel flowmeter probe which comprises a lower sealing seat, an L-shaped reflecting plate is arranged on one side edge of the lower sealing seat, a plastic blocking strip is arranged on one side, opposite to the L-shaped reflecting plate, of the lower sealing seat, the plastic blocking strip is fixedly connected with the lower sealing seat through a screw, a square groove is formed in the lower sealing seat, piezoelectric ceramic is arranged in the square groove, and the piezoelectric ceramic is arranged in the square groove. The upper sealing cover is arranged above the lower sealing seat, the piezoelectric ceramic is welded with the wire harness, the wire harness penetrates through one side of the lower sealing seat, the split type piezoelectric ceramic piece packaging structure is adopted, assembling is simple, the advantages of large-batch production efficiency and cost are very obvious, and therefore the blood vessel flowmeter can be used as a disposable consumable when the blood vessel flowmeter is applied to the medical field.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a blood vessel flow meter probe. Background Art

[0002] Vascular anastomosis or technology is a widely used technology in surgical operations, commonly seen in coronary artery bypass grafting, intracranial vascular bypass grafting, and other operations. The operation process is to connect the broken ends of the blood vessels into a complete blood vessel by suturing, or to sew the vascular patch to the rupture of the blood vessel to achieve the purpose of repairing the damage. During the operation, the blood vessels need to be quality controlled, that is, the blood flow in the anastomosed or repaired blood vessels is measured. If the blood flow reaches the expected value, it means that the operation is successful; the vascular flow measurement method currently widely used for surgical quality control is to measure the vascular flow through an ultrasonic flow probe. The specific method is: by calculating the time required for ultrasound to pass through the flowing blood, the difference in the ultrasound transit time along the blood flow direction and the reverse blood flow direction, the parameters related to blood flow are obtained.

[0003] Existing vascular flow probes all use a fully encapsulated integrated potting process, which results in a complex packaging process for the probes during production, a long production cycle, and high costs. Utility Model Content

[0004] The purpose of the utility model is to provide a blood vessel flow meter probe to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vascular flow meter probe, comprising a lower sealing seat, an L-shaped reflective plate is provided on one side of the lower sealing seat, a plastic baffle is provided on the side of the lower sealing seat opposite to the L-shaped reflective plate, the plastic baffle is fixedly connected to the lower sealing seat by screws, a square groove is provided inside the lower sealing seat, piezoelectric ceramics are provided inside the square groove, an upper sealing cover is provided above the lower sealing seat, the piezoelectric ceramics are welded to a wiring harness, and the wiring harness passes through one side of the lower sealing seat.

[0006] Preferably, the L-shaped reflective plate is connected to the lower sealing seat by glue.

[0007] Preferably, the piezoelectric ceramic is connected to the thin wires in the wiring harness by laser soldering, and the piezoelectric ceramic is connected to the lower sealing seat by glue.

[0008] Preferably, a through hole is provided at the bottom of the plastic baffle, and the wiring harness passes through the through hole.

[0009] Compared with the prior art, the beneficial effects of the utility model are: through the split piezoelectric ceramic sheet packaging structure, the assembly is simple, and the efficiency and cost advantages in mass production are very obvious. In this way, the vascular flow meter can be used as a disposable consumable in the medical field. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0012] Figure 3 This is a sliced ​​view of the utility model.

[0013] In the figure: 1. L-shaped reflector; 2. upper cover; 3. piezoelectric ceramic; 4. lower cover; 5. screws; 6. plastic stopper; 7. wiring harness. DETAILED DESCRIPTION

[0014] 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. 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.

[0015] Please refer to 1-3, an embodiment of the utility model provided: a blood vessel flow meter probe, including a lower sealing seat 4, an L-shaped reflector 1 is provided on one side of the lower sealing seat 4, a plastic baffle 6 is provided on the side of the lower sealing seat 4 opposite to the L-shaped reflector 1, and the plastic baffle 6 is fixedly connected to the lower sealing seat 4 by screws 5, a square groove is provided inside the lower sealing seat 4, a piezoelectric ceramic 3 is provided inside the square groove, an upper sealing cover 2 is provided above the lower sealing seat 4, a wire harness 7 is welded to the piezoelectric ceramic 3, and the wire harness 7 runs through one side of the lower sealing seat 4, and the L-shaped reflector 1 is installed on the protruding cylinder on the back of the lower sealing seat 4 and bonded to the lower sealing seat 4 with glue. The piezoelectric ceramic 3 and the thin wires in the wiring harness 4 are welded together by laser soldering. The piezoelectric ceramic 3 (including the welding thin wire) is installed in the square groove on the upper part of the lower sealing seat 4 and bonded with glue. The upper sealing cover 2 is installed on the upper part of the piezoelectric ceramic 3 and contacts the edge of the square groove on the upper part of the lower sealing seat 4, and then bonded with glue to form a split package for the piezoelectric ceramic. The wiring harness 7 passes through the circular hole at the lower part of the lower sealing seat 4. The specific assembly steps are as follows:

[0016] The first step is to pass one end of the wire harness 7 through the lower sealing seat 4 and weld it to the piezoelectric ceramic 3;

[0017] Step 2: After welding, the piezoelectric ceramic 3 and one side of the upper cover 2 are fixed on the lower cover seat 4;

[0018] The third step is to fix the L-shaped reflective plate 1 and the plastic baffle 6 on the lower sealing seat 4.

[0019] The L-shaped reflector 1 is connected to the lower sealing seat 4 by glue, the piezoelectric ceramic 3 is connected to the thin wire in the wiring harness 7 by laser soldering, the piezoelectric ceramic 3 is connected to the lower sealing seat 4 by glue, a through hole is provided at the bottom position of the plastic baffle 6, the wiring harness 7 passes through the through hole, the screw 5 is installed in the hole on the front side of the lower sealing seat 4 and is bonded with glue, the plastic baffle 6 is vertically installed in the vertical groove on the front side of the lower sealing seat 4, the hole in the middle can make the nut of the screw 5 pass through and then the plastic baffle 6 is simply fixed on the lower sealing seat 4, so as to block the blood vessels that are easy to detach; the wiring harness 7 passes through the hole at the bottom of the plastic baffle 6 and is hung on the wiring harness 7, so that when the measured blood vessel needs to be released, the upper part of the plastic baffle 6 can be gently pulled to detach it from the nut of the screw 5 and the vertical groove on the front side of the lower sealing seat 4, and the plastic baffle 6 will not completely detach from the flow meter probe and will never be lost.

[0020] Working principle: When in use, place the blood vessel to be measured between the L-shaped reflective plate 1 and the plastic baffle 6, and gently pull the upper part of the plastic baffle 6 to disengage the upper part of the plastic baffle 6 from the nut of the screw 5 and the vertical groove on the front of the lower sealing seat 4. The plastic baffle 6 will not completely detach from the flow meter probe. The elasticity of the plastic baffle 6 itself is used to return to its original position to relatively fix the blood vessel to be measured, thereby realizing the measurement of blood vessel flow. The overall device connects the blood vessel flow meter probe through the piezoelectric ceramic 3 and the fine wire in the wiring harness 7 to realize a split structure. During production, the components can be produced separately and then assembled, which simplifies assembly and improves production efficiency.

Claims

1. A blood vessel flow meter probe, comprising a lower sealing seat (4), characterized in that: An L-shaped reflective plate (1) is provided on one side of the lower sealing seat (4), a plastic baffle (6) is provided on the side of the lower sealing seat (4) opposite to the L-shaped reflective plate (1), the plastic baffle (6) is fixedly connected to the lower sealing seat (4) by means of screws (5), a square groove is provided inside the lower sealing seat (4), a piezoelectric ceramic (3) is provided inside the square groove, an upper sealing cover (2) is provided above the lower sealing seat (4), a wiring harness (7) is welded to the piezoelectric ceramic (3), and the wiring harness (7) passes through one side of the lower sealing seat (4).

2. A blood vessel flow meter probe according to claim 1, characterized in that: The L-shaped reflective plate (1) is connected to the lower sealing seat (4) by glue.

3. A blood vessel flow meter probe according to claim 1, characterized in that: The piezoelectric ceramic (3) is connected to the thin wires in the wiring harness (7) by laser soldering, and the piezoelectric ceramic (3) is connected to the lower sealing seat (4) by glue.

4. A blood vessel flow meter probe according to claim 1, characterized in that: A through hole is provided at the bottom of the plastic baffle (6), and the wiring harness (7) passes through the through hole.

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