Fixing device for membrane oxygenator
阅读说明:本技术 一种用于膜式氧合器的固定装置 (Fixing device for membrane oxygenator ) 是由 陈博 魏信鑫 林伟东 刘三强 刘付福江 于 2018-09-14 设计创作,主要内容包括:本发明公开了一种用于膜式氧合器的固定装置,其包括壳体、卡扣件及驱动件,壳体具有第一容置空间、位于第一容置空间上方的第二容置空间及缺口,卡扣件设置于第一容置空间内,卡扣件的一端具有从缺口凸出的卡勾,驱动件设置于第二容置空间内,驱动件通过导引孔连接卡扣件的导引沟槽。本发明的固定装置能单手操作,并能快速地安装于膜式氧合器或从膜式氧合器卸下,固定装置能设置于贮血库与连接架的连接处,不会妨碍引管与贮血库及氧合器的连接及贮血库的血液量刻度的读取。(The invention discloses a fixing device for a membrane oxygenator, which comprises a shell, a clamping piece and a driving piece, wherein the shell is provided with a first accommodating space, a second accommodating space and a notch, the second accommodating space and the notch are positioned above the first accommodating space, the clamping piece is arranged in the first accommodating space, one end of the clamping piece is provided with a clamping hook protruding from the notch, the driving piece is arranged in the second accommodating space, and the driving piece is connected with a guide groove of the clamping piece through a guide hole. The fixing device can be operated by one hand and can be quickly installed on or detached from the membrane oxygenator, and the fixing device can be arranged at the joint of the blood storage and the connecting frame, so that the connection of the guide tube with the blood storage and the oxygenator and the reading of the blood volume scale of the blood storage are not hindered.)
1. The fixing device for the membrane oxygenator is characterized by comprising a shell, a clamping piece and a driving piece, wherein the shell is provided with a first accommodating space, a second accommodating space and a notch, the second accommodating space and the notch are positioned above the first accommodating space, the clamping piece is arranged in the first accommodating space, one end of the clamping piece is provided with a clamping hook protruding from the notch, the driving piece is arranged in the second accommodating space, and the driving piece is connected with a guide groove of the clamping piece through a guide hole and used for controlling the position of the clamping hook.
2. The membrane oxygenator fixing device as in claim 1, wherein the fastener includes a first end portion, a second end portion and a supporting portion, the supporting portion is located between the first end portion and the second end portion, the supporting portion is pivotally connected to two opposite side walls of the first accommodating space, the hook is disposed on an end surface of the first end portion, a guiding block is disposed between the first end portion and the supporting portion, and the guiding block is provided with the guiding groove.
3. The membrane oxygenator fixing device as in claim 2, wherein the extending direction of the guiding groove is the same as the extending direction of the fastener, one end of the guiding groove near the support portion is lower than one end of the guiding groove near the hook, the guiding groove extends toward the surface of the guiding block facing the second accommodating space, an opening is formed on the surface of the guiding block facing the second accommodating space, and the periphery of the opening is provided with a chamfer.
4. The fixture for a membrane oxygenator as defined in claim 3 wherein the end of the guide channel adjacent to the snap has a recess and a stop ledge on the side wall where the guide channel joins the recess.
5. The membrane oxygenator fixture as recited in claim 2 wherein the second end portion has a positioning post on a surface thereof facing the second receiving space, and the housing has a positioning groove corresponding to the positioning post.
6. The fixture for a membrane oxygenator of claim 2, further comprising an elastic body disposed at the bottom of the first receiving space and corresponding to the second end.
7. The fixture for a membrane oxygenator as defined in claim 1 wherein the driver includes a driving block, a driving protrusion and a pushing protrusion, the driving protrusion is disposed on the driving block and passes through the guiding hole and connects with the guiding groove by a bump on the driving protrusion, the pushing protrusion is disposed on the driving block and is exposed from the opening of the housing.
8. The fixture for a membrane oxygenator of claim 7, wherein the driver further includes a pushing mechanism, the drive block having a receiving slot, the pushing mechanism being disposed within the receiving slot of the drive block and protruding from the notch.
9. The membrane oxygenator securing device of claim 8, wherein the pushing mechanism includes a pushing elastic body and a pushing block, the pushing elastic body is disposed in the receiving chamber, the pushing block is disposed in the receiving chamber, and one end of the pushing block abuts against the pushing elastic body.
10. The membrane oxygenator in claim 1 wherein the housing has two extensions, two of the extensions being opposite at the end of the housing having the notch, and wherein the opposite surfaces of the two extensions are each provided with a snap-fit protrusion.
Technical Field
The invention relates to the field of medical instruments, in particular to a fixing device for a membrane oxygenator.
Background
Membrane oxygenators are medical devices commonly used in cardiac surgery, and are typically secured in use near a patient's bed by means of an external support. During use, the index determination needs to be performed by reading the scale on the transparent casing of the oxygenator. Meanwhile, more guide tubes are often inserted outside the oxygenator to exchange liquid. At present, most of fixing supports for fixing the membrane oxygenator are in a metal ring structure, and the membrane oxygenator is placed into a metal ring of the fixing support from the top to support and fix. When the membrane oxygenator is sleeved at the top and put into the metal ring for supporting and fixing, the membrane oxygenator is easy to pull, damage and difficult to take and place due to more guide pipes inserted outside the oxygenator. In addition, the existing membrane oxygenator fixes the bracket and the columnar structure near the hospital bed by a screwing bolt device similar to that on an iron stand, and the mode is complex to adjust and inconvenient to disassemble. The metal ring can block the scale on the transparent shell of the oxygenator, which causes data reading difficulty.
Disclosure of Invention
The invention provides a fixing device for a membrane oxygenator, which aims to solve the problems of complex operation and difficult data reading of a fixing bracket for fixing the membrane oxygenator.
In order to solve the technical problem, the invention is realized as follows:
the fixing device for the membrane oxygenator comprises a shell, a clamping piece and a driving piece, wherein the shell is provided with a first accommodating space, a second accommodating space and a notch, the second accommodating space is located above the first accommodating space, the clamping piece is arranged in the first accommodating space, one end of the clamping piece is provided with a clamping hook protruding from the notch, the driving piece is arranged in the second accommodating space, and the driving piece is connected with a guide groove of the clamping piece through a guide hole.
In the embodiment of the invention, the fixing device can be operated by one hand through the arrangement of the buckling piece and the driving piece, and the fixing device is connected to the membrane oxygenator to achieve the effect of one-key installation and detachment only by pushing the driving piece to drive the buckling piece to be buckled or separated from the fixing groove of the membrane oxygenator. The fixing device of the invention is connected with the connection part of the blood storage and the connecting frame of the membrane oxygenator, thus not hindering the reading of the blood volume scale of the blood storage and not influencing the connection of the drainage tube, the blood storage and the oxygenator.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a perspective view of a fixing device according to a first embodiment of the present invention.
Fig. 2 is a cross-sectional view taken along a line a-a' in fig. 1.
Fig. 3 is a cross-sectional view taken along line B-B' of fig. 1.
Fig. 4A is a state view of the fixing device according to the first embodiment of the present invention.
Fig. 4B is another state diagram of the fixing device according to the first embodiment of the present invention.
FIG. 5 is a schematic diagram of a membrane oxygenator of a first embodiment of the present invention.
Fig. 6 is a cross-sectional view of a fixing device according to a second embodiment of the present invention.
Fig. 7 is a perspective view of a fixing device according to a third embodiment of the present invention.
Fig. 8 is a cross-sectional view of a fixing device according to a third embodiment of the present invention.
Fig. 9A is a state view of the fixing device according to the third embodiment of the present invention.
Fig. 9B is another state diagram of the fixing device according to the third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1, 2 and 3, which are a perspective view of a fixing device according to a first embodiment of the present invention, a cross-sectional view along a-a 'in fig. 1, and a cross-sectional view along a B-B' in fig. 1; as shown in the drawings, the present embodiment provides a
The
The
Please refer to fig. 4A and 4B, which are diagrams illustrating a state of the fixing device according to the first embodiment of the present invention; as shown in the figure, when the
Referring to fig. 2 and fig. 3, the surface of the
Referring to fig. 1, the
Please refer to fig. 6, which is a cross-sectional view of a fixing device according to a second embodiment of the present invention; the second embodiment is substantially the same as the first embodiment, and the description of the same parts is omitted, and the differences will be mainly described below. As shown in the figure, the bottom of the first
Please refer to fig. 7 and 8, which are a perspective view and a cross-sectional view of a fixing device according to a third embodiment of the present invention; the third embodiment is substantially the same as the first embodiment, and the description of the same parts is omitted, and the differences will be mainly described below. As shown in the figure, the driving
In summary, the present invention provides a fixing device for a membrane oxygenator, which is operated by one hand through the arrangement of a locking member and a driving member, and the locking member is driven to be locked or disengaged from a fixing groove of the membrane oxygenator only by pushing the driving member, so that the fixing device is connected to the membrane oxygenator, thereby achieving a one-key installation effect. The fixing device of the invention is connected with the connection part of the blood storage and the connecting frame of the membrane oxygenator, thus not hindering the reading of the blood volume scale of the blood storage and not influencing the connection of the drainage tube, the blood storage and the oxygenator.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
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