Patents by Inventor Kwok Wai Chiu

Kwok Wai Chiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8647348
    Abstract: A circumcision clamp for aiding the removal of the foreskin of an adult, human, male penis. A top clamp and a bottom clamp for circumcision each has: 1) a curved interior brace, placed between the foreskin and the penis shaft; and 2) a curved exterior brace, which aligns over the interior brace and compresses the foreskin against the interior brace. The curved interior brace preferably has a greater depth than the exterior brace, which greater depth forms a distal overhang or shelf for protecting the penis shaft during operation. By simultaneously employing a top clamp and a bottom clamp during circumcision, an entire band or collar of foreskin along the desired path of incision and suturing can be securely held in place and clamped, thus helping the operator or surgeon trim and suture the foreskin quickly and precisely.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: February 11, 2014
    Inventors: Kwok Wai Chiu, Hongtao Qiu
  • Patent number: 7987530
    Abstract: A sitz bath helps patients suffering from hemorrhoids and other conditions to void their bowels. A flushing sitz bath utilizes an attached liquid filling tube, integrated water distribution channel and valve, a swing check valve, and a content-emptying flapper valve. This device helps to increase the efficiency of filling the sitz bath basin with the preferred liquid, as well as increasing the ease and cleanliness of the subsequent emptying of the basin contents by minimizing bodily strain and mess.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: August 2, 2011
    Inventors: Kwok Wai Chiu, Ralph Gardner, Timothy Chiu
  • Publication number: 20100199419
    Abstract: A sitz bath helps patients suffering from hemorrhoids and other conditions to void their bowels. A flushing sitz bath utilizes an attached liquid filling tube, integrated water distribution channel and valve, a swing check valve, and a content-emptying flapper valve. This device helps to increase the efficiency of filling the sitz bath basin with the preferred liquid, as well as increasing the ease and cleanliness of the subsequent emptying of the basin contents by minimizing bodily strain and mess.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 12, 2010
    Inventors: Kwok Wai Chiu, Ralph Gardner, Timothy Chiu
  • Publication number: 20090105608
    Abstract: A spoon-shaped skin biopsy instrument is used in the removal of superficial skin samples and skin abnormalities for subsequent laboratory analysis. The spoon-shaped skin biopsy instrument is comprised of a pair of spoon-shaped cutting edges, which surround the desired skin sample, a crossed-members apparatus with finger loops, and a pivot point that connects the crossed members. This present invention maximizes surgical efficiency and handling and minimizes operation time.
    Type: Application
    Filed: October 21, 2007
    Publication date: April 23, 2009
    Inventors: Kwok Wai Chiu, Lawrence Chiu, Timothy Chiu, Kwok Hung Chung
  • Publication number: 20090018467
    Abstract: A punch biopsy apparatus for removing all or a portion of a suspect dermal growth. A punch biopsy apparatus has: a hollow cylinder body; a coring blade at the base of the hollow cylinder body; at least one scooping blade pivotally secured by an axle and a pair of pivot seats within the cylinder body, where each scooping blade is semicircular, a longitudinally-moveable plunger secured within the hollow cylinder, where the plunger has at least one plunger leg for contacting each scooping blade, and each plunger leg transfers longitudinal plunger movement to its respective scooping blade, thereby causing rotational scooping-blade movement. This device helps minimize bleeding and minimize damage to the biopsy sample being retrieved.
    Type: Application
    Filed: September 21, 2008
    Publication date: January 15, 2009
    Inventors: KWOK WAI CHIU, Timothy Chiu, William S. Wang
  • Patent number: 7442170
    Abstract: A punch biopsy apparatus for removing all or a portion of a suspect dermal growth. A punch biopsy apparatus has: a hollow cylinder body; a coring blade at the base of the hollow cylinder body; and a scooping blade assembly installed through a pair of installation channels and pivotally secured by a pair of pivot seats, where the scooping blade assembly comprises a semicircular scooping blade having actuating levers attached at each end via essentially rectangular connectors. This device helps minimize bleeding and minimize damage to the biopsy sample being retrieved.
    Type: Grant
    Filed: June 25, 2006
    Date of Patent: October 28, 2008
    Inventors: Kwok Wai Chiu, Hongtao Qiu
  • Publication number: 20080172085
    Abstract: An elliptical excision clamp helps in the removal of superficial lesions and abnormalities as well as the subsequent suturing of said removal of lesions. An elliptical excision clamp utilizes a pair of half-elliptical shaped clamp jaws curved at an appropriate ratio for the target surgical area, a number of suture hole and slot pairs on the clamp jaws used to facilitate suturing, a crossed members array with finger loops, and a pivot point pin used to connect said crossed members. This device helps minimize bleeding and operation time, and maximizes surgical efficiency and wound management.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 17, 2008
    Inventors: Kwok Wai Chiu, Timothy Chiu, Kwok Hung Chung
  • Publication number: 20080039740
    Abstract: A punch biopsy apparatus for removing all or a portion of a suspect dermal growth. A punch biopsy apparatus has: a hallow cylinder body; a coring blade at the base of the hallow cylinder body; and a scooping blade assembly installed through a pair of installation channels and pivotally secured by a pair of pivot seats, where the scooping blade assembly comprises a semicircular scooping blade having actuating levers attached at each end via essentially rectangular connectors. This device helps minimize bleeding and minimize damage to the biopsy sample being retrieved.
    Type: Application
    Filed: June 25, 2006
    Publication date: February 14, 2008
    Inventors: Kwok Wai Chiu, Hongtao Qiu
  • Publication number: 20060229663
    Abstract: A hemostasis device for controlling bleeding during a surgery is provided. The hemostasis device includes a first portion, which has a close structure, an adjusting device connected with the first portion, and a second portion connected with the adjusting device. The first portion is affixed to the patient to surround the surgical area, and a user adjusts the adjusting device to move the second portion to stress the patient to control bleeding during the surgery.
    Type: Application
    Filed: April 11, 2005
    Publication date: October 12, 2006
    Inventors: Kwok-Wai Chiu, Lee-Ting Chiu
  • Publication number: 20060219753
    Abstract: A stapler apparatus and a method to perform a surgical operation (circumcision preferred) using the same are provided. The stapler apparatus includes: a staple nail with two legs, a hammer for striking the staple nail, a staple plate for bending the two legs, a knife for cutting a portion of the patient, a member and a pry device. The member has a first end and a second end, with the member being connected with the knife at the first end. The pry device is disposed between the first end and the second end. When a force is applied to the second end of the member, the knife moves to separate the portion into a first part and a second part, and simultaneously, the force is also applied to the hammer to strike the staple nail to approximate a cut on the second part to reduce bleeding.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 5, 2006
    Inventors: Kwok-Wai Chiu, Timothy Chiu