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    • 34. 发明申请
    • A SEMICONDUCTOR LASER
    • 半导体激光器
    • WO1997045903A2
    • 1997-12-04
    • PCT/GB1997001436
    • 1997-05-27
    • BRITISH TECHNOLOGY GROUP LTD.PARKER, Gregory, Jason
    • BRITISH TECHNOLOGY GROUP LTD.
    • H01S03/18
    • H01S5/18386H01S5/041H01S5/0425H01S5/18391H01S5/3009H01S5/32341
    • The invention is a semiconductor laser (10) having a 3-5 nitride material as a lasing medium. An example of such a 3-5 nitride material is Indium Gallium Nitride. The invention overcomes problems of existing short lived, broadband lasers in which it was not possible to reliably dope 3-5 nitrides, both p- and n- type and relies upon the phenomenon of a relatively large band gap (6.28 eV) which is present in an Aluminium Nitride buffer layer (18). The atomic lattice structure of Aluminium Nitride layer (18) and Indium Gallium Nitride (16) are such that lasing can be made to occur with an Indium Gallium Nitride layer (16) which is supported on a sapphire substrate (20). Use of Aluminium NItride avoids lattice mismatch. In a preferred embodiment Fresnel reflectors may be incorporated in an additional layer as holes or perforations (30).
    • 本发明是一种具有3-5个氮化物材料作为激光介质的半导体激光器(10)。 这种3-5氮化物材料的实例是氮化铟镓。 本发明克服现有的短寿命宽带激光器的问题,其中不可能可靠地掺杂3-5型氮化物,p-型和n-型,并且依赖于存在相对大的带隙(6.28eV)的现象 在氮化铝缓冲层(18)中。 氮化铝层(18)和氮化铟镓(16)的原子晶格结构使得可以使负载在蓝宝石衬底(20)上的氮化铟镓层(16)发生激光发射。 使用铝氮化物可避免晶格失配。 在优选实施例中,菲涅耳反射器可以作为孔或穿孔(30)并入另外的层中。
    • 35. 发明申请
    • METHOD OF AND APPARATUS FOR DETERMINING A PROPERTY OF A SAMPLE
    • 测定样品性质的方法和装置
    • WO1994002846A1
    • 1994-02-03
    • PCT/GB1993001544
    • 1993-07-22
    • BRITISH TECHNOLOGY GROUP LTD.LIU, YingABEL, Eric, WilliamBELCH, Jill, Janette, FredaTWEEDIE, Richard, John
    • BRITISH TECHNOLOGY GROUP LTD.
    • G01N33/48
    • G01N15/12G01N15/1218G01N15/1227
    • The invention provides an apparatus and method for determining a property of a sample, derived from a response obtained from the sample after an electrical pulse has been applied to it. In a preferred embodiment blood cells (224) are subjected to an electrical pulse (figure 3c), a response (figure 3d) is obtained using data retrieval means and a Fourier Transform is applied to the response. As the pulse (202) applied is of very short duration (ideally a Dirac pulse) the Fourier Transform yields information across a very broad bandwidth, typically several MHz, and accordingly a wide range of frequency response data is obtained. Certain cellular defects can be deduced from the transformed data. In a preferred embodiment detection means (204, 206) is provided to precisely detect the presence of a cell (224) as it passes through a particular region of an orifice (220). This is then used to trigger the pulse at a precisely controlled instant. This reduces the effect of random dispersion and can be adapted to ignore noise peaks which inevitably occur. The invention may be operated continuously and provides information across a bandwidth which is wider than was previously possible.
    • 本发明提供了一种用于确定样品性质的装置和方法,该装置和方法源自在对其施加电脉冲之后从样品获得的响应。 在优选实施例中,血细胞(224)经受电脉冲(图3c),使用数据检索装置获得响应(图3d),并且对响应应用傅里叶变换。 当施加的脉冲(202)的持续时间非常短(理想地是狄拉克脉冲)时,傅立叶变换通过非常宽的带宽(通常为几MHz)产生信息,因此获得宽范围的频率响应数据。 某些细胞缺陷可以从转化的数据中推导出来。 在优选实施例中,检测装置(204,206)被提供用于在细胞通过孔口(220)的特定区域时精确地检测细胞(224)的存在。 然后将其用于在精确控制的瞬间触发脉冲。 这减少了随机色散的影响,并且可以适应于忽略不可避免地发生的噪声峰值。 本发明可以连续地操作,并且跨越比以前更宽的带宽提供信息。
    • 36. 发明申请
    • MEDICAL DEVICES
    • 医疗设备
    • WO1994001037A1
    • 1994-01-20
    • PCT/GB1993001359
    • 1993-06-29
    • BRITISH TECHNOLOGY GROUP LTD.SKIDMORE, Robert
    • BRITISH TECHNOLOGY GROUP LTD.
    • A61B01/00
    • A61B8/06A61B1/00142A61B8/12A61B8/445A61B2090/0814
    • The present invention relates to a device to allow access of a medical sensor probe (3) to a selected location within a patient's body. A disposable elongated tubular sheath (2) is releasably attached at its closed distal end (10) to the wall of a blood vessel (1) during surgery. The sheath leads out of the patient's body and provides an access path through which a sensor probe, such as an ultrasound probe (3), can be introduced in order to allow monitoring of blood flow within the vessel. The probe can be easily removed and replaced without contamination. When monitoring is complete, the releasable attachment means (6, 7) are operated and the sheath can be pulled out of the patient's body without further surgery.
    • 本发明涉及一种允许医疗传感器探头(3)进入患者体内所选位置的装置。 在手术期间,一次性细长管状护套(2)在其封闭的远端(10)可释放地附接到血管(1)的壁。 护套从患者体内引出并提供通路,通过该通道可以引入传感器探针,例如超声波探头(3),以便监测血管内的血流。 探头可以轻松拆卸和更换而不会污染。 当监视完成时,可释放的附接装置(6,7)被操作,并且护套可以被拉出患者的身体而无需进一步手术。
    • 39. 发明申请
    • PHARMACEUTICAL COMPOSITIONS
    • 药物组合物
    • WO1993012137A1
    • 1993-06-24
    • PCT/GB1992002335
    • 1992-12-16
    • KIRK, Beryl, Dorothy +lfBRITISH TECHNOLOGY GROUP LTD.COOMBES, Raoul, Charles, Dalmedo, Stuart
    • KIRK, Beryl, Dorothy +lfBRITISH TECHNOLOGY GROUP LTD.KIRK, David, Neville +di
    • C07J17/00
    • C07J1/0096C07J1/0059C07J17/005C07J21/008C07J41/0072C07J41/0088
    • Compounds of formula (I) in which the dotted line indicates the optional presence of a double bond joining the 6 and 7 positions, A is a divalent group having a chain of at least four atoms joining the oxy group and the group BX, which group A is an aliphatic hydrocarbon group or such a group in which there is replacement by one or more groups selected from formula (1) and phenylene, wherein R is hydrogen or an alkyl group and R' and R'' are the same or different alkyl groups, of one or more carbon atoms, excluding (a) replacement of that carbon atom attached to the group B, (b) replacement of both of any two carbon atoms which are joined either directly or through a single further carbon atom, and, except in the case of the replacement groups (2) and (3), (c) replacement of that carbon atom attached to the oxy group; (B) is selected from formula (4), -COO- and -OCO-, wherein R or each R separately is hydrogen or an alkyl group, X is a sugar residue and Y is hydrogen or an alkyl, alkenyl or alkynyl group, the compound (I) optionally being in the form of a physiologically acceptable ester and/or of a physiologically acceptable salt where appropriate are of value in therapy, for example in the treatment of breast cancer.
    • 其中虚线表示任选存在连接6和7位的双键的式(I)化合物,A是具有至少四个连接氧基的原子的链和BX族的二价基团,该基团 A是脂族烃基或其中由一个或多个选自式(1)和亚苯基的基团取代的基团,其中R是氢或烷基,R'和R“是相同或不同的烷基 不包括(a)取代连接到基团B上的碳原子的基团,(b)直接或通过单个另外的碳原子连接的任意两个碳原子的两个, 除了替代基团(2)和(3),(c)替代连接到氧基上的碳原子; (B)选自式(4),-COO-和-OCO-,其中R或每个R分别是氢或烷基,X是糖残基,Y是氢或烷基,烯基或炔基, 化合物(I)任选呈生理学上可接受的酯和/或生理学上可接受的盐的形式,在适当的情况下在治疗中具有价值,例如在乳腺癌的治疗中。
    • 40. 发明申请
    • ACOUSTIC NON-DESTRUCTIVE TESTING
    • 声音非破坏性测试
    • WO1993011528A1
    • 1993-06-10
    • PCT/GB1992002253
    • 1992-12-04
    • BRITISH TECHNOLOGY GROUP LTD.TURNER, Charles, William
    • BRITISH TECHNOLOGY GROUP LTD.
    • G10K11/02
    • B06B1/0681G10K11/24
    • An acoustic probe comprising a piezoelectric ceramic transducer element energisable to emit ultrasonic signals in a first direction and in a second direction opposite to the first, and mountable on a sample to be tested so as to transmit thereto signals emitted in the said first direction, is further provided, according to the invention, with a rod-shaped acoustic waveguide having one end coupled to the transducer element to receive signals emitted by the transducer element in the said second direction and to transmit them along the waveguide, with lossy cladding material acoustically coupled to the surface of the waveguide at least at a part thereof remote from its one end, and with coupling means surrounding and mechanically secured and acoustically coupled to the ceramic element and the said one end of the waveguide, the coupling means having a surface adapted to be secured to the sample to be tested and to transmit thereto signals emitted by the transducer element.
    • 一种声探针,包括能够在第一方向和与第一方向相反的第二方向上发射超声波信号的压电陶瓷换能器元件,并且可安装在待测试的样品上以便向其发射沿所述第一方向发射的信号, 根据本发明,还提供了一种棒形声波导,其具有一端耦合到换能器元件,以接收由换能器元件沿所述第二方向发射的信号,并沿着波导传输它们,声纳耦合的有损包层材料 至少在远离其一端的一部分处的波导的表面,并且耦合装置围绕并机械地固定和声耦合到陶瓷元件和波导的所述一端,耦合装置具有适于 被固定到要测试的样本上并向其发送由换能器元件发射的信号。