CA1313097C - Means and structure for prevention of cross contamination during use of dental camera - Google Patents
Means and structure for prevention of cross contamination during use of dental cameraInfo
- Publication number
- CA1313097C CA1313097C CA000579042A CA579042A CA1313097C CA 1313097 C CA1313097 C CA 1313097C CA 000579042 A CA000579042 A CA 000579042A CA 579042 A CA579042 A CA 579042A CA 1313097 C CA1313097 C CA 1313097C
- Authority
- CA
- Canada
- Prior art keywords
- sheath
- dental
- camera
- dental camera
- handle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00091—Nozzles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00142—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with means for preventing contamination, e.g. by using a sanitary sheath
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
- A61B1/127—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements with means for preventing fogging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
- A61B1/247—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth with means for viewing areas outside the direct line of sight, e.g. dentists' mirrors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
Abstract
MEANS AND STRUCTURE FOR PREVENTION OF
CROSS CONTAMINATION DURING USE
OF DENTAL CAMERA
ABSTRACT OF THE INVENTION
A sheath is provided which prevents the dental camera itself from coming into contact with the patient, while allowing the dental camera to function properly. Such sheaths are dispensed on a perforated role, either end to end, or side to side. Alternative-ly, each sheath is individually packaged in a tear away casing, allowing the sheath to remain sterile, yet being readily accessible for use.
CROSS CONTAMINATION DURING USE
OF DENTAL CAMERA
ABSTRACT OF THE INVENTION
A sheath is provided which prevents the dental camera itself from coming into contact with the patient, while allowing the dental camera to function properly. Such sheaths are dispensed on a perforated role, either end to end, or side to side. Alternative-ly, each sheath is individually packaged in a tear away casing, allowing the sheath to remain sterile, yet being readily accessible for use.
Description
-` , 1313097 ~EANS AND STRUCTU~E FOR PREVENTION OF
CROSS CONTAHINATION DURING USE
- OF DENTAL CAMERA
This Invention relates to a method and struc-ture ror the prevention of cros~ contamination during u~e of dental camera~.
For year~, dentist~ have used dental mirrors for in~ertion in a dental pat~ent's mouth ror rerlect-ing imagés of areas within the patient ' mouth for viewing by the denti~t. Thi~ technique works, although it has several di~advantage~. First, it is often dlf~icult to hold the dental mirror in an appropriate position in order to reflect the de~ired image.
Secondly, it i3 more difricult to en~ure that proper lighting i available to the area within the mouth to be re~lected by the dental mirror. An eYen greater dlsadvantage i~ that it i3 ~ery dif~icult to use such prior art dental mirror~ in a ~ituation where a dentist wishe~ to di~cu~ certain regions within the mouth with other people, be it the patient, colleagues, dental aqsistants, or 3tud~n~s in a teaching institution.
More recently, an electronic video dental camera haa been taught, ~or example in U.S. Patent No.47274l6is~ued 2/23/88 on an invention entitled "Electronic Vldeo Dental Camsra" (Serial No.
022,171). ~hen u~ing dental tools, including ~uch a .~ , 2 13130~7 dental camera, it i9 nece3sary to pre~ent to the patient at least a completely clean surface and, under certain condition~, a 3terile surface. Thi3 is even more seriou~ than might be generally realized, since often even minor dental procedure~ result in ~o~e degree of bleeding and there~ore there i~ a danger of transmi~ion of Hepatiti~ B and AIDS, ~or example, if such a dental camera i9 not ~terillzed between dental procedures among patient~. In the in~tance o~ a dental camera, such cleaning or ~terilization mu~t be of not only of the camera head, but the handle and a quitable length of cable, as well.
One prior art technique for sterilizing or cleaning medical in3trument~ i~ the ~ubmer~ion of the in~trument in a liquid bath containing a suitable sterilizing or di~infecting agent, ~uch as Sporicidin~trade mark) Oftentime~, liquid sterilization takes an inordinant amount of time, thereby not allowing a par-ticular piece of medical equipment to be readily reused on another patient. A common solution to thi~ problem i~ the acqui~ition o~ numerous piece~ o~ the Yame type of equipment, thereby allowing use o~ one ln~trument while others are being qterilized. For example, it i~
quite common for a typical dentist'q of~ice to have numerou~ dental mirror~, and numerou~ dental picks of ~he ~ame type, in order ror one ~et of dental lnqtru-ment~ to be in u~e on a patlent, while others are bein~
~terilized.
However, this pre~ent~ a more aignirican~
problem when the device to be ~terilized i~ more com-plex and expen-~ive. Thu~, prior art ~terilization procedure for complex and expenaive piece~ of equip-ment leave much to be desired.
.
.
In accordance with the teachings of this invention, a novel technique is provided for, In effect, provlding a sterile dental camera. In accord-ance with the teachingq of thi~ invention, a sheath i3 provided which prevent3 the dental camera it~el~ from coming into contact with the patient, while allowing the dental camera to function properly. In one embodi-ment of thi3 invention, quch ~heaths are dispensed on a perforated roll, either end to end, or qide to side.
In another embodiment of thiQ invention, each 3heath i~
individually packaged in a tear away ca3ing, allowing the sheath to remain ~terile, yet being readily acce~-sible for use.
The invention is illustrated in the drawings, in which:
Fig. 1a through 1d illu3trate embodiment3 o~ a sheath ~uitable ~or covering a dental camera, such 3heath~ being conQtructed in accordance with the teach-ing~ o~ thi~ invention;
Fig. 1e shows a dental camera modified to include lnsuf~lation-aspiration channel~ ~or use in accordance with a ~heath co~3tructed in accordance with the teaching~ of thiQ inYention;
Fig. 1~ i~ a diagram of another sheath con-~tructad in accordance with the teaching Or this in~ention which includes a fluid channel ror providing ~luid to the face of the dental camera;
Figs. 2a and 2b depict embodimentq of dental 3heath~ of ~hi~ lnvention whereln the dental qheath3 are provided in perrorated relationqhip to each other;
and Fig. 2c depicts another embodi~ent of a mean~
for packaging a dental ~heath con~tructed in accordance wlth the teaching~ of thi3 invention.
4 1 3 1 30q7 Fig. la i~ a drawing depicting one embod1ment Or a dental ~heath con~tructed ln accordance with the teachings of thi~ inventlon. As shown in FLg. 1a, dental sheath 11a 3erves to cover dental camera 10 and, if deqired, a selected length of cable 12 protruding ~rom the proximal end of dental camera 10. In one embodi~ent of this invention, ~heath 1la 3erve~ to cover approximately 6 to 12 inche~ of cable 12. In the embodiment of Fig. 1a, ~heath 11a include~ window 13 which serves to cover the len~ portion of the dental camera head 10-1 such that sheath 11a does not ~ignifi-cantly impede the tran~mi~ion of light to and from the camera head 10-1 of dental camera 10. In this e~bodi-ment, ~he~th 1la i~ manufactured with, for example, a flexible rubber or plastic material, such a~ polyethyl-ene or latex and window 13 i9 rormed of, ~or example, clear acrylic. If desired, an ela~tic band, clip, or 3imilar structure 16 i~ used in this or the ~ollowing embodiments to ~ecure the open end o~ sheath 11a to dental camera 10 or cable 12.
Fig. 1b shows an alternative embodiment of a dental sheath con~tructed in accordance with the teach-inB~ O~ thi3 invention. Dental ~heath 1lb i9 formed of a thin material, uch as mylar or clear polyethylene, which lf de~ired fit3 rather loo~ely over dental camera 10 and a desired leng~h of cable 12. Use~ ln con~unc-tion wlth dental ~hea~h 1lb ~ a fastening mean~ 15, which might compri~e an elastic band, clip, or ~imilar 3tructure, which ~erve~ to tighten and rlatten dental sheath llb, at least over camera head 10-1. In this manner, u~ing suitable material to fabricate ~heath 1lb or at least that portion of ~heath 116 whlch i~ placed over the lens of camera head 10-1, when tightened and ~lattened, becomes substantially tran~parent, thereby providing good tran3mi~3ivlty or light to and rrOm the len~ of Gamera head 10-1.
. .
1 3 1 30q7 Another embodiment of a dental ~heath con-structed in accordance with the teaching3 of this invention is shown in Fig. 1c. In Fig. 1c, dental sheath 11c i5 a rather loo~ely fitting ~heath for covering dental camera 10 and if desired a portion of cable 12. Operating in conjunction with sheath 11c is ~hoe 13 which 3erves to cover camera head 10-1 while providing a substantially transparent cover above the lens of camera head 10-1. Shoe 13 can be placed on camera head 10-1 either before or after sheath 11c is placed on dental camera 10.
Shown in Fig. 1d i~ an alternative embodiment of a sheath constructed in accordance with the teach-ings of this invention. As ~hown in Fig. ld, sheath 1ld is originally a rather loosely fitting sheath which iq then shrunk around the distal end of dental camera 10 so as to provide a tight fit on camera head 10-1, thereby providing a substantially transparent covering for camera head 10-1. If de3ired, polyethylene is u3ed to form dental sheath 11d or at lea~t that portion of dental heath 1ld which i9 to be shrunk upon the appli-cation of heat.
Fig. 1e 3hows an embodiment of a dental camera 10 constructed in accordance with the teaching~ of thi3 invention which includes one or more openings 14a and 14b to one or more insufflation-a3piration channel~
(not ~hown) located within dental camera 10. Opening3 14a and 14b may be located at any convenient location on dental camera 10 and 3er~e to provide a desired pre~3ure for use in conJunction with a sheath as taught by thi3 invention. For example, openings 14a and 14b can ~erve to provide either or both a ~light pressure to moderately inflate a dental qheath as it i3 being placed on or removed from dental camera 10, and a ~light vacuum in order to cau3e the dental 3heath to properly adhere to dental camera 10, thereby preventing the 3heath from slidins off the dental camera in use, and al~o for providing a tisht flt o~ the ~heath around camera head 10-1 thereby to provide a 3ub~tantially transparent ~it. If desired, the proximal end o~ the sheath can be held with a ~uitable mean~, ~uch a~ an elastic band, tie fastener, or twi~t tie, or a similar structure ~abricated in tha sheath it~elf, in order to properly ~eal the open end of the sheath in order to allow the pre~sure provided by the in~ufrlation-aspiration channel to work to its utmo~t advantage.
Fig. 1f ~hows another embodiment of a dental ~heath con~tructed in accordance with the teachingq of thi~ invention in which dental ~heath 11~ includes fluid channel ~O having an opening 21b for receiving fluid and an opening 21a for providing thi~ ~luid on the portion of dental sheath 11f which coYers lens 19 of camera head 10-1. This fluid ~erve~ to minimize de~ogging and ~erves to clean~e the area above the camera len~, thereby permitting the appropriate trans-mi~Lon o~ light to and from the camera head.
Alternative methods for minimizing fogging are available in accordance wLth the teaching3 of thi3 in~ention. For example, using 3uitable material~ for the construction of the sheath it~elf, or the portion of the ~heath which covers the camera head, will in it~elf minimize fogging ~ince the surf ce of appropri-at~ material will rapidly as ume ambient tempera-ture. Alternatively, a portion of the dental camera sh~ath which co~ers the camera head can be 3prayed or dipped in a 3terile silicon compound in order to inhibit conden~tion and thereby prevent fogging.
Other ~uch 3terile compound~ can be u~ed a~ well.
Flg. 2a depict~ oneembodiment of the construc-tion of dental sheaths in accordance with the teaching~
o~ this invention for handy di~pensing. As 3hown in Fig. 2a, a quantity of dental ~heaths are proYided Ln a roll or ranrold arrangement, for example, wi~h indivi-dual dental camera sheath~ Ln roll 31 being ~oined to ad~acent sheath~ vla perforationq 32. Thus, a user need only tear off an individual dental sheath 30 ~rom roll 31 when it is desired to be u~ed, much in the same way a3 a paper towel i3 torn from a roll o~ paper towel If de~ired, an end portion 33 can be di~carded after being torn by perforations holding it to dental sheath 34. End portion 33 3erve~ to allow a rectangu-lar ~tock to be u~ed to ~orm roll 31. h~ shown in Fig.
2a, dental camera sheath 30 includes opening 34 for entry of the dental camera. Dental camera sheath 30 would preferably have a length L within the range of 1 to 48 inche3 and a width W in the range of approxi-mately 0.1 to 3 inche~.
Fig. 2b depict~ another convenient method for dispensing dental camera ~heaths in accordance with the teaching~ of this invention. In Fig. 2b, a long tube-like material 40 i3 machined in order to have perfora-tions 41 for separating longitudinally ~paced adjacent dental ~heath~. Preferably, simultaneously with the rormation Or per~oratlons 41, one end of a dental ~heath i~ ~ealed in order to provide a dental sheath having only one opening.
Figure 2c depict3 an alternative method ~or packaging dental sheaths. Figure 2c ~how~ a dental sheath package 50 including body portion 54 and fold-able rlaps 51a and 51b. ~n U9e, foldable rlap~ 51a and ~lb are opened slightly, thereby expo~ing opening 53 of dental camera shea~h 58. The dental camera can be in erted into openlng 53 at this time, ir desired, allowing the insertion to be per~ormed without requir-ing any phy~ical contact with the exterior of the dental aheath ltself, 3ince lt is ~till protected by package body 54. Once the dental camera i3 inserted, ~lap3 51a and 51b are pulled and body ~4 i3 3plit along lt~ ~eam~ and peelq away from dental camera ~heath 58. This embodiment ha~ the advantage of providing a ~terile, indlvidually packaged dental ~heath which is readily available for use.
,. 13130q7 The invention now being fully de~cribed, it will be apparent to one of ordlnary skill in the art that many change~ and modification~ can be made thereto without departing from the ~pirit or scope of the appended claims.
; ~
CROSS CONTAHINATION DURING USE
- OF DENTAL CAMERA
This Invention relates to a method and struc-ture ror the prevention of cros~ contamination during u~e of dental camera~.
For year~, dentist~ have used dental mirrors for in~ertion in a dental pat~ent's mouth ror rerlect-ing imagés of areas within the patient ' mouth for viewing by the denti~t. Thi~ technique works, although it has several di~advantage~. First, it is often dlf~icult to hold the dental mirror in an appropriate position in order to reflect the de~ired image.
Secondly, it i3 more difricult to en~ure that proper lighting i available to the area within the mouth to be re~lected by the dental mirror. An eYen greater dlsadvantage i~ that it i3 ~ery dif~icult to use such prior art dental mirror~ in a ~ituation where a dentist wishe~ to di~cu~ certain regions within the mouth with other people, be it the patient, colleagues, dental aqsistants, or 3tud~n~s in a teaching institution.
More recently, an electronic video dental camera haa been taught, ~or example in U.S. Patent No.47274l6is~ued 2/23/88 on an invention entitled "Electronic Vldeo Dental Camsra" (Serial No.
022,171). ~hen u~ing dental tools, including ~uch a .~ , 2 13130~7 dental camera, it i9 nece3sary to pre~ent to the patient at least a completely clean surface and, under certain condition~, a 3terile surface. Thi3 is even more seriou~ than might be generally realized, since often even minor dental procedure~ result in ~o~e degree of bleeding and there~ore there i~ a danger of transmi~ion of Hepatiti~ B and AIDS, ~or example, if such a dental camera i9 not ~terillzed between dental procedures among patient~. In the in~tance o~ a dental camera, such cleaning or ~terilization mu~t be of not only of the camera head, but the handle and a quitable length of cable, as well.
One prior art technique for sterilizing or cleaning medical in3trument~ i~ the ~ubmer~ion of the in~trument in a liquid bath containing a suitable sterilizing or di~infecting agent, ~uch as Sporicidin~trade mark) Oftentime~, liquid sterilization takes an inordinant amount of time, thereby not allowing a par-ticular piece of medical equipment to be readily reused on another patient. A common solution to thi~ problem i~ the acqui~ition o~ numerous piece~ o~ the Yame type of equipment, thereby allowing use o~ one ln~trument while others are being qterilized. For example, it i~
quite common for a typical dentist'q of~ice to have numerou~ dental mirror~, and numerou~ dental picks of ~he ~ame type, in order ror one ~et of dental lnqtru-ment~ to be in u~e on a patlent, while others are bein~
~terilized.
However, this pre~ent~ a more aignirican~
problem when the device to be ~terilized i~ more com-plex and expen-~ive. Thu~, prior art ~terilization procedure for complex and expenaive piece~ of equip-ment leave much to be desired.
.
.
In accordance with the teachings of this invention, a novel technique is provided for, In effect, provlding a sterile dental camera. In accord-ance with the teachingq of thi~ invention, a sheath i3 provided which prevent3 the dental camera it~el~ from coming into contact with the patient, while allowing the dental camera to function properly. In one embodi-ment of thi3 invention, quch ~heaths are dispensed on a perforated roll, either end to end, or qide to side.
In another embodiment of thiQ invention, each 3heath i~
individually packaged in a tear away ca3ing, allowing the sheath to remain ~terile, yet being readily acce~-sible for use.
The invention is illustrated in the drawings, in which:
Fig. 1a through 1d illu3trate embodiment3 o~ a sheath ~uitable ~or covering a dental camera, such 3heath~ being conQtructed in accordance with the teach-ing~ o~ thi~ invention;
Fig. 1e shows a dental camera modified to include lnsuf~lation-aspiration channel~ ~or use in accordance with a ~heath co~3tructed in accordance with the teaching~ of thiQ inYention;
Fig. 1~ i~ a diagram of another sheath con-~tructad in accordance with the teaching Or this in~ention which includes a fluid channel ror providing ~luid to the face of the dental camera;
Figs. 2a and 2b depict embodimentq of dental 3heath~ of ~hi~ lnvention whereln the dental qheath3 are provided in perrorated relationqhip to each other;
and Fig. 2c depicts another embodi~ent of a mean~
for packaging a dental ~heath con~tructed in accordance wlth the teaching~ of thi3 invention.
4 1 3 1 30q7 Fig. la i~ a drawing depicting one embod1ment Or a dental ~heath con~tructed ln accordance with the teachings of thi~ inventlon. As shown in FLg. 1a, dental sheath 11a 3erves to cover dental camera 10 and, if deqired, a selected length of cable 12 protruding ~rom the proximal end of dental camera 10. In one embodi~ent of this invention, ~heath 1la 3erve~ to cover approximately 6 to 12 inche~ of cable 12. In the embodiment of Fig. 1a, ~heath 11a include~ window 13 which serves to cover the len~ portion of the dental camera head 10-1 such that sheath 11a does not ~ignifi-cantly impede the tran~mi~ion of light to and from the camera head 10-1 of dental camera 10. In this e~bodi-ment, ~he~th 1la i~ manufactured with, for example, a flexible rubber or plastic material, such a~ polyethyl-ene or latex and window 13 i9 rormed of, ~or example, clear acrylic. If desired, an ela~tic band, clip, or 3imilar structure 16 i~ used in this or the ~ollowing embodiments to ~ecure the open end o~ sheath 11a to dental camera 10 or cable 12.
Fig. 1b shows an alternative embodiment of a dental sheath con~tructed in accordance with the teach-inB~ O~ thi3 invention. Dental ~heath 1lb i9 formed of a thin material, uch as mylar or clear polyethylene, which lf de~ired fit3 rather loo~ely over dental camera 10 and a desired leng~h of cable 12. Use~ ln con~unc-tion wlth dental ~hea~h 1lb ~ a fastening mean~ 15, which might compri~e an elastic band, clip, or ~imilar 3tructure, which ~erve~ to tighten and rlatten dental sheath llb, at least over camera head 10-1. In this manner, u~ing suitable material to fabricate ~heath 1lb or at least that portion of ~heath 116 whlch i~ placed over the lens of camera head 10-1, when tightened and ~lattened, becomes substantially tran~parent, thereby providing good tran3mi~3ivlty or light to and rrOm the len~ of Gamera head 10-1.
. .
1 3 1 30q7 Another embodiment of a dental ~heath con-structed in accordance with the teaching3 of this invention is shown in Fig. 1c. In Fig. 1c, dental sheath 11c i5 a rather loo~ely fitting ~heath for covering dental camera 10 and if desired a portion of cable 12. Operating in conjunction with sheath 11c is ~hoe 13 which 3erves to cover camera head 10-1 while providing a substantially transparent cover above the lens of camera head 10-1. Shoe 13 can be placed on camera head 10-1 either before or after sheath 11c is placed on dental camera 10.
Shown in Fig. 1d i~ an alternative embodiment of a sheath constructed in accordance with the teach-ings of this invention. As ~hown in Fig. ld, sheath 1ld is originally a rather loosely fitting sheath which iq then shrunk around the distal end of dental camera 10 so as to provide a tight fit on camera head 10-1, thereby providing a substantially transparent covering for camera head 10-1. If de3ired, polyethylene is u3ed to form dental sheath 11d or at lea~t that portion of dental heath 1ld which i9 to be shrunk upon the appli-cation of heat.
Fig. 1e 3hows an embodiment of a dental camera 10 constructed in accordance with the teaching~ of thi3 invention which includes one or more openings 14a and 14b to one or more insufflation-a3piration channel~
(not ~hown) located within dental camera 10. Opening3 14a and 14b may be located at any convenient location on dental camera 10 and 3er~e to provide a desired pre~3ure for use in conJunction with a sheath as taught by thi3 invention. For example, openings 14a and 14b can ~erve to provide either or both a ~light pressure to moderately inflate a dental qheath as it i3 being placed on or removed from dental camera 10, and a ~light vacuum in order to cau3e the dental 3heath to properly adhere to dental camera 10, thereby preventing the 3heath from slidins off the dental camera in use, and al~o for providing a tisht flt o~ the ~heath around camera head 10-1 thereby to provide a 3ub~tantially transparent ~it. If desired, the proximal end o~ the sheath can be held with a ~uitable mean~, ~uch a~ an elastic band, tie fastener, or twi~t tie, or a similar structure ~abricated in tha sheath it~elf, in order to properly ~eal the open end of the sheath in order to allow the pre~sure provided by the in~ufrlation-aspiration channel to work to its utmo~t advantage.
Fig. 1f ~hows another embodiment of a dental ~heath con~tructed in accordance with the teachingq of thi~ invention in which dental ~heath 11~ includes fluid channel ~O having an opening 21b for receiving fluid and an opening 21a for providing thi~ ~luid on the portion of dental sheath 11f which coYers lens 19 of camera head 10-1. This fluid ~erve~ to minimize de~ogging and ~erves to clean~e the area above the camera len~, thereby permitting the appropriate trans-mi~Lon o~ light to and from the camera head.
Alternative methods for minimizing fogging are available in accordance wLth the teaching3 of thi3 in~ention. For example, using 3uitable material~ for the construction of the sheath it~elf, or the portion of the ~heath which covers the camera head, will in it~elf minimize fogging ~ince the surf ce of appropri-at~ material will rapidly as ume ambient tempera-ture. Alternatively, a portion of the dental camera sh~ath which co~ers the camera head can be 3prayed or dipped in a 3terile silicon compound in order to inhibit conden~tion and thereby prevent fogging.
Other ~uch 3terile compound~ can be u~ed a~ well.
Flg. 2a depict~ oneembodiment of the construc-tion of dental sheaths in accordance with the teaching~
o~ this invention for handy di~pensing. As 3hown in Fig. 2a, a quantity of dental ~heaths are proYided Ln a roll or ranrold arrangement, for example, wi~h indivi-dual dental camera sheath~ Ln roll 31 being ~oined to ad~acent sheath~ vla perforationq 32. Thus, a user need only tear off an individual dental sheath 30 ~rom roll 31 when it is desired to be u~ed, much in the same way a3 a paper towel i3 torn from a roll o~ paper towel If de~ired, an end portion 33 can be di~carded after being torn by perforations holding it to dental sheath 34. End portion 33 3erve~ to allow a rectangu-lar ~tock to be u~ed to ~orm roll 31. h~ shown in Fig.
2a, dental camera sheath 30 includes opening 34 for entry of the dental camera. Dental camera sheath 30 would preferably have a length L within the range of 1 to 48 inche3 and a width W in the range of approxi-mately 0.1 to 3 inche~.
Fig. 2b depict~ another convenient method for dispensing dental camera ~heaths in accordance with the teaching~ of this invention. In Fig. 2b, a long tube-like material 40 i3 machined in order to have perfora-tions 41 for separating longitudinally ~paced adjacent dental ~heath~. Preferably, simultaneously with the rormation Or per~oratlons 41, one end of a dental ~heath i~ ~ealed in order to provide a dental sheath having only one opening.
Figure 2c depict3 an alternative method ~or packaging dental sheaths. Figure 2c ~how~ a dental sheath package 50 including body portion 54 and fold-able rlaps 51a and 51b. ~n U9e, foldable rlap~ 51a and ~lb are opened slightly, thereby expo~ing opening 53 of dental camera shea~h 58. The dental camera can be in erted into openlng 53 at this time, ir desired, allowing the insertion to be per~ormed without requir-ing any phy~ical contact with the exterior of the dental aheath ltself, 3ince lt is ~till protected by package body 54. Once the dental camera i3 inserted, ~lap3 51a and 51b are pulled and body ~4 i3 3plit along lt~ ~eam~ and peelq away from dental camera ~heath 58. This embodiment ha~ the advantage of providing a ~terile, indlvidually packaged dental ~heath which is readily available for use.
,. 13130q7 The invention now being fully de~cribed, it will be apparent to one of ordlnary skill in the art that many change~ and modification~ can be made thereto without departing from the ~pirit or scope of the appended claims.
; ~
Claims (20)
1. A dental camera sheath comprising:
an opening at a first end for entry and exit of a dental camera, a handle, and a camera head including means for receiving an image located at the distal end of said handle, said camera head being formed such that said camera is placed at an angle from the axis of said handle so as to enable viewing of substantially all areas inside the mouth including the distal aspects of the teeth;
a distal end portion adapted to cover said camera head of said dental camera; and a window portion of said distal portion, said window portion being substantially transparent over said means for receiving an image.
an opening at a first end for entry and exit of a dental camera, a handle, and a camera head including means for receiving an image located at the distal end of said handle, said camera head being formed such that said camera is placed at an angle from the axis of said handle so as to enable viewing of substantially all areas inside the mouth including the distal aspects of the teeth;
a distal end portion adapted to cover said camera head of said dental camera; and a window portion of said distal portion, said window portion being substantially transparent over said means for receiving an image.
2. A dental camera sheath as in Claim 1 wherein said window portion comprises optically transparent material.
3. A dental camera sheath as in Claim 1 wherein that portion other than said window portion comprises flexible rubber or plastic material.
4. A dental camera sheath as in Claim 1 which further comprises means for fixing said distal portion in tight, bonding relation to said camera head.
5. A dental camera sheath as in Claim 4 wherein said means for fixing comprises an elastic band or clip.
6. A dental camera sheath as in Claim 1 which further comprises means for fixing said first end.
7. A dental camera sheath as in Claim 6 wherein said means for fixing comprises an elastic band or clip.
8. A dental camera sheath as in Claim 1 which further comprises a shoe for covering said distal portion, thereby holding said distal portion in tight, bonding relation to said camera head.
9. A dental camera sheath as in Claim 8 wherein said shoe is substantially transparent above said means for receiving an image.
10. A dental camera sheath as in Claim 9 wherein said shoe comprises optically transparent material.
11. A dental camera sheath as in Claim 1 wherein said distal portion is capable of being shrunk-fit to said camera head.
12. A dental camera sheath as in Claim 11 wherein said distal portion is shrunk by the application of heat.
13. A dental camera sheath as in Claim 1 which further comprises a fluid channel for directing fluid to or from said window portion.
14. A dental camera for use in displaying an image from inside the mouth of a monitor comprising an electronic video endoscope having a shape like a dental mirror, said endoscope comprising:
a handle;
a camera head including means for receiving an image located at the distal end of said handle, said camera head being formed such that said means for receiving an image is placed at an angle from the axis of said handle so as to enable viewing of substantially all areas inside the mouth, including the distal aspects of the teeth; and a sheath covering said handle and camera head said sheath being substantially transparent over said means for receiving an image.
a handle;
a camera head including means for receiving an image located at the distal end of said handle, said camera head being formed such that said means for receiving an image is placed at an angle from the axis of said handle so as to enable viewing of substantially all areas inside the mouth, including the distal aspects of the teeth; and a sheath covering said handle and camera head said sheath being substantially transparent over said means for receiving an image.
15. A dental camera as in Claim 14 which further includes an insufflation/aspiration channel having at least one opening on a surface of said handle and camera head.
16. A dental camera as in Claim 15 wherein said sheath is drawn to said handle and camera head in response to a vacuum applied to said channel.
17. A dental camera as in Claim 15 wherein said sheath is pushed away from said handle and camera head in response to a positive pressure applied to said channel.
18. Means for dispensing dental camera sheaths as in Claim 1 comprising:
a plurality of said dental camera sheaths, each joined in a perforated relation along a longitudinal edge to an adjacent one of said dental camera sheaths.
a plurality of said dental camera sheaths, each joined in a perforated relation along a longitudinal edge to an adjacent one of said dental camera sheaths.
19. Means for dispensing dental camera sheaths as in Claim 1 comprising:
a plurality of said dental sheaths joined end to end in a perforated relation.
a plurality of said dental sheaths joined end to end in a perforated relation.
20. A dental camera sheath as in Claim 1 further comprising packaging means housing said sheath in a sterile environment, said packaging means including two mating portions for enclosing said sheath within, each of said portions for enclosing said sheath within, each of said portions including a foldable flap for grasping and peeling apart said mating portions, thereby removing said sheath from said packaging means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/103,833 US4757381A (en) | 1987-03-05 | 1987-10-01 | Means and structure for prevention of cross contamination during use of dental camera |
| US103,833 | 1987-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1313097C true CA1313097C (en) | 1993-01-26 |
Family
ID=22297250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000579042A Expired - Fee Related CA1313097C (en) | 1987-10-01 | 1988-09-30 | Means and structure for prevention of cross contamination during use of dental camera |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4757381A (en) |
| EP (1) | EP0310515A1 (en) |
| JP (1) | JP2674601B2 (en) |
| AU (1) | AU617361B2 (en) |
| BR (1) | BR8805060A (en) |
| CA (1) | CA1313097C (en) |
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1987
- 1987-10-01 US US07/103,833 patent/US4757381A/en not_active Expired - Lifetime
-
1988
- 1988-09-23 AU AU22762/88A patent/AU617361B2/en not_active Ceased
- 1988-09-29 EP EP88402466A patent/EP0310515A1/en not_active Withdrawn
- 1988-09-30 BR BR8805060A patent/BR8805060A/en unknown
- 1988-09-30 CA CA000579042A patent/CA1313097C/en not_active Expired - Fee Related
- 1988-10-01 JP JP63245898A patent/JP2674601B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4757381A (en) | 1988-07-12 |
| BR8805060A (en) | 1989-05-09 |
| JPH021264A (en) | 1990-01-05 |
| EP0310515A1 (en) | 1989-04-05 |
| AU2276288A (en) | 1989-04-06 |
| AU617361B2 (en) | 1991-11-28 |
| JP2674601B2 (en) | 1997-11-12 |
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| Date | Code | Title | Description |
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| MKLA | Lapsed |