CN220002535U

CN220002535U - Blood irradiation device

Info

Publication number: CN220002535U
Application number: CN202321107633.3U
Authority: CN
Inventors: 王震; 唐昊; 伍正彬
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-11-14
Anticipated expiration: 2033-05-10

Abstract

The utility model provides a blood irradiation device, which comprises a base, a bearing table, a rotating mechanism, a limiting mechanism and a radiation source, wherein the bearing table is rotatably arranged on the base; the rotating mechanism drives the bearing table to rotate; the limiting mechanism comprises a plurality of limiting pieces and a bevel gear ring, the bevel gear ring is coaxially arranged on the outer side of the bearing table, and the limiting pieces comprise rotating shafts, thread pieces and bevel gears; the bearing table is provided with long grooves which correspond to the limiting pieces one by one, the limiting pieces are arranged in the long grooves, the rotating shaft is rotatably connected with the bearing table, an extension line of the rotating shaft penetrates through the circle center of the bearing table, the thread pieces are coaxially arranged on the rotating shaft, and the thread pieces extend to the upper end of the bearing table; the bevel gear is coaxially fixed on the rotating shaft and meshed with the bevel gear ring; the radiation source is fixedly arranged above the center of the bearing table. The bevel gear drives the thread piece to rotate through the bevel gear and the rotating shaft, and the rotating thread piece applies a component force to the blood bag inwards so as to ensure that the blood bag is always positioned in a certain range below the irradiation source.

Description

Blood irradiation device

Technical Field

The utility model relates to the technical field of blood irradiation, in particular to a blood irradiation device.

Background

The blood irradiation means that after the blood is subjected to X-ray or gamma-ray irradiation treatment, lymphocytes with immune functions in the blood are inactivated, and the functional activity of other cells is maintained. When such allogeneic blood or blood components containing a large amount of immunocompetent lymphocytes are infused into immunocompromised patients, the occurrence of transfusion-related graft versus host disease (TA-GVHD) can be caused, which can seriously lead to death of the patients. The T lymphocytes with immunological activity in the blood can be effectively inactivated by adopting rays to irradiate the blood or the blood products, and the TA-GVHD can be effectively prevented by infusing the blood or the blood components irradiated by the rays, so that the blood transfusion is safer. The blood irradiation instrument irradiates blood and blood products by controlling the radiation dose by using an X-ray device or a gamma-ray radiation source according to the prevention mechanism of TA-GVHD, and is special equipment for irradiating blood.

However, the X-ray type blood irradiation instrument has the defects of low X-ray energy and uneven single-source irradiation, and is difficult to meet the requirement on the radiation uniformity in the standard of the blood irradiation instrument (national standard requires the non-uniformity of the irradiation of the blood irradiation instrument to be less than 20%). The energy of X-ray generated by common X-ray source is generally below 200keV, and it is easy to be absorbed by shallow blood in the process of irradiating blood or product, so that the number of X-ray reaching deep is reduced rapidly. Whereas the isotope radioactive sources assembled in radioactive-source blood irradiation apparatus are typically Cs-137 and Co-60, which emit gamma photons of energy of 662keV, 1.17MeV and 1.33MeV, respectively. The energy of the gamma photons is far higher than that of the X photons, the linear attenuation coefficient of the gamma photons in blood or products is far smaller than that of the X photons, and therefore the irradiation uniformity of a single source of the gamma photons is far better than that of an X light source.

In order to overcome the defects of the existing single-source irradiation X-ray type blood irradiation instrument, the patent with publication number of CN204972435U discloses a single-source X-ray type blood irradiation device which is applied to the technical field of the blood irradiation instrument and comprises the following components: the device comprises a frame and an X-ray tube arranged on the frame, wherein a blood bag container is arranged below the X-ray tube and consists of a bottom plate, an outer wall and an inner wall which are arranged on the bottom plate, an annular blood bag containing cavity is formed between the outer wall and the inner wall in a surrounding mode, the blood bag containing cavity is used for containing blood bags to be irradiated, the bottom plate of the blood bag container is movably arranged on the frame through a driving shaft, and the driving shaft is connected with an output shaft of a rotating motor through a transmission piece. The rotary motor is adopted to enable the blood bag bearing container to rotate, so that blood or blood products in the blood bag are forced to flow, and the positions of the blood or blood products in each local area are exchanged, so that the irradiation uniformity of the blood or blood products is improved.

However, during the rotation of the carrying container, the container on the carrying container is influenced by centrifugal force to move to the outer side of the rotation center line, so that the blood bag is forced to gradually move away from the X-ray tube in rotation, the irradiation effect of the X-ray tube on the blood bag is reduced, and the time for irradiating the blood is prolonged.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model mainly solves the technical problems as follows: under the action of centrifugal force, the blood bag is forced to gradually move away from the X-ray tube in rotation, so that the irradiation effect of the X-ray tube on the blood bag is reduced, and the time for irradiating the blood is prolonged.

In order to solve the technical problems, the utility model adopts the following technical scheme: a blood irradiation device comprising:

a base;

the bearing table is rotatably arranged on the base;

the rotating mechanism drives the bearing table to rotate;

the limiting mechanism comprises a plurality of limiting pieces and a bevel gear ring, the bevel gear ring is coaxially arranged on the outer side of the bearing table, the bevel gear ring is fixedly arranged on the base, the plurality of limiting pieces are distributed around the circle center of the bearing table, and the limiting pieces comprise a rotating shaft, a thread piece and a bevel gear; the bearing table is provided with long grooves, the long grooves correspond to the limiting pieces one by one, the limiting pieces are arranged in the long grooves, the rotating shaft is rotatably connected with the bearing table, an extension line of the rotating shaft penetrates through the circle center of the bearing table, the thread pieces are coaxially arranged on the rotating shaft, and the thread pieces extend to the upper end of the bearing table; the bevel gear is coaxially fixed on the rotating shaft, and is meshed with the bevel gear ring; a kind of electronic device with high-pressure air-conditioning system

The radiation source is fixedly arranged above the center of the bearing table.

According to the utility model, the bearing table drives the rotating shaft to revolve, so that the bevel gear moves on the bevel gear ring, the bevel gear ring drives the bevel gear to rotate, the bevel gear drives the rotating shaft to rotate, the rotating shaft drives the thread piece to rotate, when the blood bag on the bearing table moves outwards under the action of centrifugal force, the blood bag moves onto the thread piece, and the rotating thread piece exerts a component force on the blood bag inwards, so that the blood bag is limited to continuously move outwards, the blood bag can be effectively prevented from being gradually far away from the radiation source in the center, and the blood bag is ensured to be always in a certain range below the radiation source.

Preferably, a plurality of the limiting pieces are circularly arrayed by taking the axis of the bearing table as the circle center. Thus, the pushing force can be uniformly applied to the blood bag on the bearing table from all directions.

Preferably, the rotation mechanism includes a drive shaft and a motor; one end of the driving shaft is fixedly and coaxially arranged on the bearing table and positioned below the bearing table; the motor drives the driving shaft to rotate. The motor drives the bearing table to rotate through the driving shaft so as to shake blood in the blood bag.

Preferably, a plurality of triangular reinforcing pieces are fixedly arranged at one end, close to the bearing table, of the driving shaft, and the triangular reinforcing pieces are circularly arrayed by taking the axis of the driving shaft as the circle center; and the triangular reinforcing piece is fixedly connected with the bearing table. The driving shaft and the bearing table are connected through a plurality of triangular reinforcing pieces, so that stability between the driving shaft and the bearing table is improved.

Preferably, a side check ring is fixedly arranged on the outer edge of the bearing table. The blood bag can be effectively prevented from falling to the outer side of the bearing table through the side check ring.

Preferably, the radiation source is fixedly mounted above the center of the bearing table through a bracket. The radiation source is fixed by a bracket.

Compared with the prior art, the utility model has at least the following advantages:

1. can ensure that the blood bag is always positioned in a certain range below the irradiation source. According to the utility model, the bearing table drives the rotating shaft to revolve, so that the bevel gear moves on the bevel gear ring, the bevel gear ring drives the bevel gear to rotate, the bevel gear drives the rotating shaft to rotate, the rotating shaft drives the thread piece to rotate, when the blood bag on the bearing table moves outwards under the action of centrifugal force, the blood bag moves onto the thread piece, and the rotating thread piece exerts a component force on the blood bag inwards, so that the blood bag is limited to continuously move outwards, the blood bag can be effectively prevented from being gradually far away from the radiation source in the center, and the blood bag is ensured to be always in a certain range below the radiation source.

2. Can improve the uniformity of irradiation of blood or blood products. In the utility model, the radiation source can be an X-ray tube, the blood bag to be irradiated is placed on the bearing table, then the radiation source is opened and the rotating mechanism is controlled to act, and the rotating mechanism drives the bearing table to rotate, so that the blood in the blood bag placed on the bearing table shakes, and the blood or blood products in each local area are subjected to position exchange, thereby improving the irradiation uniformity of the blood or blood products.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

Fig. 1 is a perspective view of a blood irradiation device according to an embodiment of the present utility model.

Fig. 2 is a top view of a limiting mechanism according to an embodiment of the present utility model.

Fig. 3 is a perspective view of a limiter according to an embodiment of the present utility model.

Fig. 4 is a perspective view of a rotating mechanism according to an embodiment of the present utility model.

Reference numerals: the device comprises a base, a bearing table, a long groove, a rotating mechanism, a driving shaft, a motor, a triangular reinforcement, a limiting mechanism, a conical gear ring, a rotating shaft, a screw thread piece, a bevel gear, a side retainer ring and a bracket, wherein the base is a base, the bearing table is a bearing table, the long groove is a bearing table, the rotating mechanism is a bearing table, the motor is a motor, the triangular reinforcement is a motor, the limiting mechanism is a motor, the bevel gear is a conical gear ring, the rotating shaft is a rotating shaft, the screw thread piece is a rotating shaft, the bevel gear is a rotating shaft, the screw thread piece is a threaded piece, the bevel gear is a bevel gear, the side retainer ring is a rotating shaft, and the side.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

In the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-3, embodiments provided by the present utility model: a blood irradiation device comprising: the device comprises a base 1, a bearing table 2, a rotating mechanism 3, a limiting mechanism 4 and a radiation source, wherein the bearing table 2 is rotatably arranged on the base 1; the rotating mechanism 3 drives the bearing table 2 to rotate; the limiting mechanism 4 comprises a plurality of limiting pieces and a conical tooth ring 41, the conical tooth ring 41 is coaxially arranged on the outer side of the bearing table 2, the conical tooth ring 41 is fixedly arranged on the base 1, the plurality of limiting pieces are distributed around the circle center of the bearing table 2, and further the plurality of limiting pieces are circularly arrayed by taking the axis of the bearing table 2 as the circle center; so that the pushing force can be uniformly applied to the blood bag on the bearing table 2 from all directions; the limiter comprises a rotating shaft 42, a thread piece 43 and a bevel gear 44; the bearing table 2 is provided with long grooves 21, the long grooves 21 are in one-to-one correspondence with limiting pieces, the limiting pieces are arranged in the long grooves 21, the rotating shaft 42 is rotatably connected with the bearing table 2, an extension line of the rotating shaft 42 penetrates through the circle center of the bearing table 2, the thread pieces 43 are coaxially arranged on the rotating shaft 42, and the thread pieces 43 extend to the upper end of the bearing table 2; bevel gear 44 is coaxially fixed to rotary shaft 42, and bevel gear 44 meshes with bevel gear ring 41; the radiation source is fixedly arranged above the center of the bearing table 2.

In specific implementation, the radiation source can be an X-ray tube, the blood bag to be irradiated is placed on the bearing table 2, then the radiation source is turned on and the rotating mechanism 3 is controlled to act, the rotating mechanism 3 drives the bearing table 2 to rotate, so that blood in the blood bag placed on the bearing table 2 shakes, and the blood or blood products in each local area are subjected to position exchange, so that the irradiation uniformity of the blood or blood products is improved. Simultaneously, plummer 2 drives pivot 42 revolution for bevel gear 44 moves on awl ring gear 41, and awl ring gear 41 drives bevel gear 44 rotation, thereby bevel gear 44 drives pivot 42 rotation, and pivot 42 drives screw thread piece 43 rotation, and when the blood bag on plummer 2 outwards removes under the effect of centrifugal force, the blood bag removes to screw thread piece 43, and a component is inwards exerted to the blood bag to the screw thread piece 43 of rotation, thereby restriction blood bag continuously outwards removes, can effectually prevent the radiation source that the blood bag kept away from the center gradually, in order to ensure that the blood bag is in the certain scope of radiation source below all the time.

Referring to fig. 1-4, in other embodiments, the rotation mechanism 3 includes a drive shaft 31 and a motor 32; one end of the driving shaft 31 is fixedly and coaxially arranged on the bearing table 2 and is positioned below the bearing table 2; the motor 32 rotates the driving shaft 31. In specific implementation, the motor 32 drives the bearing table 2 to rotate through the driving shaft 31 so as to shake blood in the blood bag.

Referring to fig. 1-4, in other embodiments, a plurality of triangular reinforcing members 33 are fixedly mounted at one end of the driving shaft 31 near the carrying platform 2, and the plurality of triangular reinforcing members 33 are circularly arrayed with the axis of the driving shaft 31 as the center of a circle; and the triangular reinforcement 33 is fixedly connected with the carrying platform 2. The driving shaft 31 and the loading table 2 are connected by a plurality of triangular stiffeners 33 to improve stability between the driving shaft 31 and the loading table 2.

Referring to fig. 1-4, in other embodiments, the outer edge of the carrying platform 2 is fixedly provided with a side retainer ring 5. The blood bag can be effectively prevented from falling to the outer side of the bearing table 2 through the side check ring 5.

Referring to fig. 1, in a further embodiment, the radiation source is fixedly mounted above the centre of the carrier 2 by means of a bracket 6. The radiation source is fixed through a bracket 6; specifically, the cross section of the bracket 6 is inverted L-shaped.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims

1. A blood irradiation device, comprising:

a base;

the bearing table is rotatably arranged on the base;

the rotating mechanism drives the bearing table to rotate;

The radiation source is fixedly arranged above the center of the bearing table.

2. A blood irradiation device according to claim 1 wherein a plurality of the restriction members are circularly arrayed with the axis of the carrying table as the center of a circle.

3. A blood irradiation device according to claim 1 wherein the rotation mechanism includes a drive shaft and a motor; one end of the driving shaft is fixedly and coaxially arranged on the bearing table and positioned below the bearing table; the motor drives the driving shaft to rotate.

4. A blood irradiation device according to claim 3, wherein a plurality of triangular reinforcing members are fixedly mounted at one end of the driving shaft close to the carrying table, and the triangular reinforcing members are circularly arrayed with the axis of the driving shaft as the center of a circle; and the triangular reinforcing piece is fixedly connected with the bearing table.

5. A blood irradiation device according to claim 1 wherein the outer edge of the carrying platform is fixedly provided with side collars.

6. A blood irradiation device according to claim 1 wherein the radiation source is fixedly mounted above the centre of the carrier by a bracket.