1. Process for preparing high purity low molecular weight heparins with average molecular weight of between 2000 and 10000 daltons by the stages of forming an intermediate heparin benzethonium salt, from this latter a water soluble heparin ester, and of subjecting said ester to depolymerisation with bases to form said low molecular weight heparins, characterised in that at least said stage of heparin benzethonium salt formation is carried out on an inert adsorbent solid matrix of filtering material, or filter-aid, said low molecular weight heparins being finally subjected to a purification stage by reducing the impurities present with borohydride.
2. Process as claimed in claim 1, wherein the stages of forming an intermediate heparin benzethonium salt, from this latter a water soluble heparin ester, and of subjecting said ester to depolymerisation with bases to form said low molecular weight heparins are conducted on an inert adsorbent solid matrix of filtering material, or filter-aid.
3. Process as claimed in claim 1, wherein said filtering material, or filter-aid, is chosen from coadjuvants used in polymer filtration, diatomaceous earth, perlite, Europerl 500, Diacel CFS.
4. Process as claimed in claim 1, wherein the stage of forming a water soluble ester of heparin is conducted with a degree of esterification of said ester of less that 9.5%.
5. Process as claimed in claim 1, wherein the stage of reducing with borohydride is conducted with NaBH4 in water at pH 8.2 to 8.6.
6. Process as claimed in claim 1, wherein said low molecular weight heparin is enoxaparin with a dermatan sulfate impurity of less than 0.04%, said stages comprising isolating heparin benzethonium salt on filter-aid, forming heparin benzyl ester sodium salt on filter-aid, hydrolysis of the benzyl ester supported on filter-aid, isolating enoxaparin with removal of said filter-aid and purifying the enoxaparin thus obtained by reacting with borohydride.
7. Process as claimed in claim 4, wherein said low molecular weight heparin is enoxaparin with a dermatan sulfate impurity of less than 0.04%, said stages comprising isolating heparin benzethonium salt on filter-aid, forming heparin benzyl ester sodium salt on filter-aid with a degree of esterification of said ester of less than 9.5%, hydrolysis of the benzyl ester supported on filter-aid, isolating enoxaparin with removal of said filter-aid and purifying the enoxaparin thus obtained by reacting with borohydride.
8. Process as claimed in claim 6 wherein said low molecular weight heparin is enoxaparin with an average molecular weight of between 3500 and 5500 daltons.
9. Process as claimed in claim 7 wherein said low molecular weight heparin is enoxaparin with an average molecular weight of between 3500 and 5500 daltons.
10. Process as claimed in claim 8 wherein said low molecular weight heparin is enoxaparin with fractions of molecular weight less than 2000 daltons between 12% and 20% and fractions of molecular weight within the range 2000 to 8000 daltons between 68% and 88%.
11. Process as claimed in claim 9 wherein said low molecular weight heparin is enoxaparin with fractions of molecular weight less than 2000 daltons between 12% and 20% and fractions of molecular weight within the range 2000 to 8000 daltons between 68% and 88%.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An information processing apparatus comprising:
a reception unit that receives multiple captured images that are captured with a capture device in parallel from an external apparatus to which the capture device that captures an object is connected;
a detection unit that detects a priority image from among the multiple captured images being received by the reception unit, the priority image having priority information that specifies the priority image to be preferentially displayed on a display device;
a controller that controls the reception unit to stop receiving other captured images which are not detected by the detection unit and to receive first image data that corresponds to the priority image detected by the detection unit and controls the display device to display the first image data corresponding to the priority image on the display device when the priority image is detected by the detection unit; and
a requesting unit that requests a second image data based on priority information while receiving the first image data.
2. The information processing apparatus according to claim 1, wherein the detection unit detects the priority image with the priority information from header information of each of the multiple captured images received by the reception unit.
3. The information processing apparatus according to claim 1, wherein the controller controls the display device to display selection information to choose whether or not a user stops updating an image displayed on the display device to the priority image when the reception unit receives the priority image.
4. The information processing apparatus according to claim 1, further comprising a setting unit that sets an identifier of at least one of the captured images,
wherein the requesting unit requests the second image based on the identifier.
5. The information processing apparatus according to claim 1, wherein the controller controls the reception unit to receive the second image data if the priority information of the second image data identified the second image data as a priority image and to stop receiving the first image data.
6. A remote indication system comprising:
a first information processing apparatus including
a first reception unit that receives multiple captured image from a capture device that captures an object, and
an addition unit that adds priority information that specifies a priority image displayed preferentially on a display device to one or more of the multiple captured image received by the first reception unit; and
a second information processing apparatus including
a second reception unit that is connected to the first information processing apparatus via a communication medium, and receives the multiple captured image in parallel from the first information processing apparatus,
a detection unit that detects the priority image from the multiple captured images received by the second reception unit in accordance with the priority information,
a controller that controls the second reception unit to stop receiving other captured images which are not detected by the detection unit and to receive first image data that corresponds to the priority image detected by the detection unit and controls the display device to display the first image data that corresponds to the priority image on the display device when the priority image is detected by the detection unit; and
a requesting unit that requests second image data based on priority information while receiving the first image data.
7. The remote indication system according to claim 6, wherein the addition unit adds the priority information to a captured image selected by the first information processing apparatus or the second information processing apparatus.
8. The information processing apparatus according to claim 6, wherein the detection unit detects the priority image with the priority information from header information of each of the multiple captured images received by the second reception unit.
9. The information processing apparatus according to claim 6, wherein the controller controls the display device to display selection information to choose whether or not a user stops updating an image displayed on the display device to the priority image when the second reception unit receives the priority image.
10. The information processing apparatus according to claim 6, further comprising a setting unit that sets an identifier of at least one of the captured images,
wherein the requesting unit requests the second image based on the identifier.
11. The information processing apparatus according to claim 6, wherein the controller controls the second reception unit to receive the second image data if the priority information of the second image data identified the second image data as a priority image and to stop receiving the first image data.
12. A recording medium causing a computer to execute a process, the process comprising:
receiving multiple captured images by a capture device in parallel from an external apparatus to which the capture device that captures an object is connected;
detecting a priority image from among the multiple captured images being received, the priority image having priority information that specifies the priority image to be preferentially displayed on a display device;
stopping receiving other captured images not assigned the priority information, and receiving first image data that corresponds to the priority image with the priority information to display the first image data that corresponds to the priority image on the display device when the priority image is detected; and
requesting second image data based on priority information while receiving the first image data.
13. An information processing apparatus comprising:
a setting unit that sets an identifier of a captured image which is captured by a capture device as an identifier of a receiving image and updates the identifier;
a requesting unit that requests an external apparatus to which the capture device that captures an object is connected to send a captured image in accordance with the identifier;
a receiving unit that receives the captured image which is requested to be sent; and
a detection unit that detects a priority tag which is included in header information of the captured image received by the receiving unit,
wherein the receiving unit receives a second image if the second image has a priority tag and stops receiving a first captured image which is currently being received if the first captured image does not have a priority tag,
the received second captured image is displayed on a display device, and
the setting unit updates the identifier of the receiving image when the detection unit does not detect a priority tag in a captured image.