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MarketScreener Homepage  >  Equities  >  SHENZHEN STOCK EXCHANGE  >  Shenzhen Mindray Bio-Medl Elctrnc Co Ltd    300760   CNE100003G67

SHENZHEN MINDRAY BIO-MEDL ELCTRNC CO LTD

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Researchers Submit Patent Application, “Sample Rack Moving Mechanism, Sample Rack Conveying Device And Sample Analyzing Equipment”, for Approval (USPTO 20190227089): Shenzhen Mindray Bio-Medical Electronics Co. Ltd.

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08/14/2019 | 05:14pm EDT

2019 AUG 14 (NewsRx) -- By a News Reporter-Staff News Editor at China Business Day -- From Washington, D.C., NewsRx journalists report that a patent application by the inventors SHE, Fating (Shenzhen, China); ZHANG, Leping (Shenzhen, China), filed on April 1, 2019, was made available online on July 25, 2019.

The patent’s assignee is Shenzhen Mindray Bio-Medical Electronics Co. Ltd. (Shenzhen, People’s Republic of China).

News editors obtained the following quote from the background information supplied by the inventors: “Sample tubes are usually adopted to collect samples of blood and body fluid to be analyzed in medical equipments. The sample tubes are generally inserted into a sample rack, such that one sample rack can store a plurality of sample tubes, thus facilitating movement and storage of the sample tubes while improving testing efficiency. Many medical equipments adopt a combination of the sample rack and the sample tubes. The sample rack with the inserted sample tubes is directly conveyed into the equipments for sample analysis, thereby enabling simple and convenient operation of such equipments. Although various equipments have different ways of conveying the sample rack inside it, the purpose is to convey the sample rack by means of a moving shaft, such that each sample in the sample tube in the sample rack can be analyzed. It is required that, during the period of conveying, each sample tube can accurately reach the testing places without tilting, rolling or damaging.

“At present, there are two main solutions of conveying the sample rack by the medical equipment: one is to move the sample rack up and down, and the other is to translate the sample rack in a guide groove. The latter solution requires the sample rack to move back and forth, where a positioning pin can be protruded to be inserted into a positioning hole in the sample rack and the sample rack can be driven to move by another shaft or other shafts. The translation solution requires a positioning hole disposed in the sample rack, and this leads to a high requirement on the location accuracy of the positioning hole. However, since manufacturing tolerance may affect the positioning accuracy of a moving shaft, the positioning pin, when being protruded, is likely to be pressed against the sample rack, rather than being successfully inserted into the positioning hole. In this case, the moving shaft may be stuck, or the sample rack may be tilted to cause splashed liquids.

“Considering a power part of the moving shaft, a motor as a power source may be used to drive the moving mechanism when the medical equipments are electrically controlled. The motor can be a rotary motor, in which case rotary movement is required to be converted into linear movement. A motor which is capable of moving linearly may lead to a special structure, a high cost and a large size. On the other hand, the rotary motor requires an intermediate transmission mechanism, thus increasing equipment manufacturing cost and occupation space. Therefore, there are high design requirements on the structure of the intermediate mechanism, the size of the occupation space and the transmission accuracy.”

As a supplement to the background information on this patent application, NewsRx correspondents also obtained the inventors’ summary information for this patent application: “This disclosure provides a sample rack moving mechanism having a simple and compact structure, enabling accurate and reliable transmission, and capable of avoiding tilting of sample tubes and splashing of liquids.

“In one aspect, a sample rack moving mechanism may be provided, where the sample rack moving mechanism may cooperate with a storing section loaded with one or more sample racks, and is capable of removing the sample racks loaded with one or more sample containers from a holding position on the storing section and/or returning the sample racks loaded with the one or more sample containers to the storing section. The sample rack moving mechanism may include a first drive element, a cam, a cam follower, a second drive element, a guide groove and a support element. The cam may include a curve contour and be driven by the first drive element. The cam follower may cooperate with the cam and follow along the curve contour of the cam. The guide groove may correspond to a position of the storing section, so as to move the sample racks from the holding position to the guide groove. Here, a length direction of the guide groove and a movement direction of the sample racks disposed on the storing section may be substantially along a same direction, and a bottom plane of the guide groove may be of a substantially same height as a support plane of the storing section for placing the sample racks. The support element may be fixed on the cam follower and driven by the cam follower to move upward and downward, so as to be detachably connected with the sample racks. The support element is capable of driving, through connection with the second drive element, the sample racks to substantially horizontally move between the storing section and the guide groove.

“In another aspect, a sample rack conveying device may be provided. The sample rack conveying device may include a storing section, the above-described sample rack moving mechanism and a conveying member, where the conveying member is capable of conveying the guide groove and one of the sample racks on the guide groove along a direction substantially perpendicular to the length direction of the guide groove.

“In yet another aspect, a sample analyzing equipment can be provided, where the sample analyzing equipment can include the above-described sample conveying device.”

The claims supplied by the inventors are:

“1. A sample rack moving mechanism for moving a sample rack capable of holding one or more sample containers, wherein the sample rack moving mechanism comprises: a first drive element; a second drive element; a support element that is capable of being driven by the first drive element to move substantially vertically, so that the support element is capable of being attached or detached from the sample rack, and is capable of being driven by the second drive element to move substantially horizontally, so that the sample rack can be moved horizontally together with the support element; and a guide groove for holding and guiding the sample rack, wherein a length direction of the guide groove is the same as the substantially horizontal moving direction of the support element, wherein the support element is capable of driving the sample rack to substantially horizontally move along the guide groove.

“2. The sample rack moving mechanism according to claim 1, wherein the sample rack moving mechanism comprises: a cam that comprises a curved contour and is fixedly connected to the first drive element, wherein the cam is capable of being driven by the first drive element to rotate; a cam follower that cooperates with the cam and moves along the curved contour of the cam; wherein the support element is fixedly connected to the cam follower and is capable of being driven by the cam follower to move vertically, so that the support element is capable of being attached to or detached from the sample rack.

“3. The sample rack moving mechanism according to claim 2, wherein the first drive element is a first rotary motor, the cam is a disk-shaped component and is eccentrically disposed on an output shaft of the first rotary motor, wherein the cam is driven to rotate by the first rotary motor; the cam comprises a cam groove, wherein the cam follower is inserted within the cam groove and is slidable within the cam groove.

“4. The sample rack moving mechanism according to claim 3, wherein the cam comprises a kidney-shaped outer contour and the cam groove is an arc-shaped groove penetrating through the disk-shaped component along an axial direction and is located adjacent to the kidney-shaped outer contour of the cam.

“5. The sample rack moving mechanism according to claim 2, further comprising a support base for supporting the sample rack moving mechanism, wherein the second drive element is a second rotary motor fixed at one end of the support base and the support element is driven indirectly via a transmission by the second rotary motor; wherein the transmission mechanism comprises a first driving wheel disposed on an output shaft of the second rotary motor, and a first driven wheel fixed at an opposite end of the support base; wherein a transmission belt is connected between the first driving wheel and the first driven wheel, and is connected with the support element; and wherein a second guide rail is disposed in parallel with a transmission direction of the transmission belt, and a length direction of the second guide rail is substantially same as the horizontally moving direction of the support element, and the support element together with the cam and the cam follower are guided along the second guide rail, such that the sample rack attached to the support element is capable of being moved into or out of the guide groove.

“6. The sample rack moving mechanism according to claim 1, wherein the support element is a fork-shaped element is capable of substantially horizontally moving the sample rack; and the fork-shaped element comprises an opening, in which the sample rack is to be held.

“7. The sample rack moving mechanism according to claim 6, wherein the fork-shaped element comprises two claws respectively provided at two sides of the opening, and the sample rack is to be held between the two claws in the opening.

“8. The sample rack moving mechanism according to claim 1, wherein the first drive element is a first rotary motor that is fixed on a first mounting plate, a first guide rail is disposed on the first mounting plate, and the support element is guided along the first guide rail to move vertically so as to be attached to or detached from the sample rack.

“9. The sample rack moving mechanism according to claim 8, wherein an optical coupler is disposed on the first mounting plate, and a light blocking plate capable of cooperating with the optical coupler is disposed on the support element, wherein the light blocking plate is used to trigger the optical coupler to control the first rotary motor to be turned on or off

“10. A sample rack conveying device, comprising: a storing mechanism capable of being loaded with one or more sample racks, each sample rack capable of being loaded with one or more containers; a sample rack moving mechanism supported by a support base and configured to remove a sample rack on the storing mechanism from its holding position and/or return a sample rack to the storing mechanism, wherein the sample rack moving mechanism comprises: a first drive element; a second drive element; a support element that is capable of being driven by the first drive element to move substantially vertically, so that the support element is capable of being attached or detached from the sample rack, and is capable of being driven by the second drive element to move substantially horizontally, so that the sample rack can be moved horizontally together with the support element; and a guide groove for holding and guiding the sample rack, wherein a length direction of the guide groove is the same as the substantially horizontal moving direction of the support element, wherein the support element is capable of driving the sample rack to substantially horizontally move along the guide groove; and a conveying member capable of conveying the support base for supporting the guide groove along a direction substantially perpendicular to the length direction of the guide groove.

“11. The sample rack conveying device according to claim 10, wherein the sample rack moving mechanism comprises: a cam that comprises a curved contour and is fixedly connected to the first drive element, wherein the cam is capable of being driven by the first drive element to rotate; a cam follower that cooperates with the cam and moves along the curved contour of the cam; wherein the support element is fixedly connected to the cam follower and is capable of being driven by the cam follower to move vertically, so that the support element is capable of being attached to or detached from the sample rack.

“12. The sample rack conveying device according to claim 10, wherein a bottom plane of the guide groove and a support plane of the storing mechanism are located on a substantially same horizontal plane.

“13. The sample rack conveying device according to claim 10, wherein the conveying member comprises a third drive element and a third guide rail, and the support base for supporting the guide groove is driven by the third drive element to move along the third guide rail, so as to convey the sample rack held in the guide groove to or from a testing mechanism.

“14. The sample rack conveying device according to claim 10, wherein the storing mechanism comprises a through slot, the support element is capable of being inserted into the through slot, such that the support element is capable of being attached to a bottom of a sample rack via the through slot.

“15. The sample rack conveying device according to claim 10, wherein the one or more sample racks are arranged parallelly along a direction substantially perpendicular to the length direction of the guide groove on the storing mechanism, a transmission rack is disposed on one side of the storing mechanism along the direction substantially perpendicular to the length direction of the guide groove, wherein the transmission rack are provided with one or more tooth slots, an amount of which equals to that of the sample racks arranged on the storing mechanism, and a sensor is disposed at one end of the transmission rack and provides a sensing signal for controlling a movement of the storing mechanism.

“16. The sample rack conveying device according to claim 12, wherein the first drive element is a first rotary motor, the cam is a disk-shaped component and is eccentrically disposed on an output shaft of the first rotary motor, wherein the cam is driven to rotate by the first rotary motor; the cam comprises a cam groove, wherein the cam follower is inserted within the cam groove and is slidable within the cam groove.

“17. The sample rack conveying device according to claim 10, wherein the second drive element is a second rotary motor fixed at one end of a support base of the sample rack moving mechanism and the support element is driven indirectly via a transmission by the second rotary motor; wherein the transmission mechanism comprises a first driving wheel disposed on an output shaft of the second rotary motor, and a first driven wheel is fixed at an opposite end of the support base; wherein a transmission belt is connected between the first driving wheel and the first driven wheel, and is connected with the support element; and wherein a second guide rail is disposed in parallel with a transmission direction of the transmission belt, and a length direction of the second guide rail is substantially same as the horizontally moving direction of the support element, and the support element together with the cam and the cam follower are guided along the second guide rail, such that the sample rack attached to the support element is capable of being moved into or out of the guide groove.

“18. The sample rack conveying device according to claim 10, wherein the support element is a fork-shaped element is capable of substantially horizontally moving the sample rack; and the fork-shaped element comprises an opening, in which the sample rack is to be held.

“19. The sample rack conveying device according to claim 10, wherein the first drive element is a first rotary motor that is fixed on a first mounting plate, a first guide rail is disposed on the first mounting plate, and the support element is guided along the first guide rail to move vertically so as to be attached to or detached from the sample rack.

“20. A sample analyzing equipment for conveying a sample rack capable of being loaded one or more sample containers holding a sample, testing and analyzing the sample, the equipment comprising: a testing mechanism for testing the sample; and a sample rack conveying device according to claim 10, wherein the sample rack conveying device is configured to convey the sample rack from the storing mechanism to the testing mechanism for testing and return the sample rack from the testing mechanism to the storing mechanism after testing.”

For additional information on this patent application, see: SHE, Fating; ZHANG, Leping. Sample Rack Moving Mechanism, Sample Rack Conveying Device And Sample Analyzing Equipment. Filed April 1, 2019 and posted July 25, 2019. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220190227089%22.PGNR.&OS=DN/20190227089&RS=DN/20190227089

(Our reports deliver fact-based news of research and discoveries from around the world.)

Copyright © 2019 NewsRx LLC, China Business Day, source Geographic Newsletters

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Sales 2019 16 786 M
EBIT 2019 5 253 M
Net income 2019 4 617 M
Finance 2019 13 524 M
Yield 2019 0,51%
P/E ratio 2019 43,9x
P/E ratio 2020 35,9x
EV / Sales2019 11,3x
EV / Sales2020 9,14x
Capitalization 202 B
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