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Disposable scalpel with retractable blade

A scalpel and knife holder technology, used in medical science, surgery, etc., can solve problems such as handle separation

Inactive Publication Date: 2007-08-29
特雷沃尔·约翰·米尔顿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant considers that the two-part construction of the handle is undesirable for various reasons, not the least of which is the possibility that the handle may come apart

Method used

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  • Disposable scalpel with retractable blade
  • Disposable scalpel with retractable blade
  • Disposable scalpel with retractable blade

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] In the embodiment of the invention shown in the figures, the scalpel comprises: a single-piece injection molded plastic handle 1; a knife holder 2 that slides longitudinally within the plastic handle along a longitudinal cavity 3; A manually operated slide 4 which is combined with the knife holder to form the knife holder assembly in an assembled state; and a scalpel blade 5 fitted on the knife holder for use.

[0023] The handle has a longitudinally extending slot 6 extending along its operative top edge 7 from the front end 8 of the handle towards its rear end 9 and communicating with the interior of the chamber. An integral bridge 10 at the forward end of the top edge forms the annular open end 11 of the chamber and provides this end with dimensional stability to hold the tool holder securely in its operative position.

[0024] The knife holder is elongated and has a longitudinally extending protuberance 12 which is received in a cooperating recess 13 (see Figure 3) ...

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PUM

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Abstract

A scalpel is provided having a handle (1) with a longitudinally extending cavity (3) therein, a blade carrier (2) within the cavity and movable longitudinally relative to the handle between an operative position in which a blade carried thereby is exposed for use at an open end (8) of the cavity and an inoperative position in which a blade carried thereby is retracted within the cavity in the handle, and a manually operable slider (4) associated with the blade carrier and passing through a slot (6) in a wall of the handle at an edge (7) thereof, herein termed the top edge. The handle is moulded as a single piece moulding with an integral bridge (10) defining an endless open end (11) to the cavity through which the blade carrier is introduced into the cavity. The slider is formed as a separate part that snap fits to the blade carrier after its introduction through the open end of the cavity to form a blade carrier and slider assembly. 'Click stops' are provided in the operative and inoperative positions by tooth (19, 20) and notch (23) formations on the slider and slot. A final innermost permanently locked position is also preferably provided.

Description

technical field [0001] The present invention relates to a disposable scalpel having a retractable blade, and more particularly to such a disposable scalpel in which the blade is dissected relative to the support by moving the blade holder via a thumb-operable slide The knife handle moves between an extended operative position and a retracted inoperative position, and the slider is typically mounted to the knife holder through a slot through the handle wall. Background technique [0002] Disposable scalpels with retractable blades have been proposed and manufactured in many different ways. The various forms of scalpels used for existing purposes may be considered to fall into two categories: the first are those in which a slider operable by the thumb protrudes through the side wall of the scalpel handle, while the second are such A scalpel in which the slide protrudes through a slot in one edge of what can be considered the top edge of the scalpel handle. [0003] The first...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/32
Inventor 特雷沃尔·约翰·米尔顿罗伯特·杰勒德·霍尔曼
Owner 特雷沃尔·约翰·米尔顿