US3807048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined irrigator, injector and evacuator
Assignee: Individual
•
Filing: 1972-01-03
•
Granted: 1974-04-30
•
Expires: 1992-01-03
Abstract
Abstract A dental irrigator and injector for utilization in root canal therapy designed to be operated by one hand and which has a plurality of uses, both dental and medical. The instrument includes a handgrip portion, a body which is capable of receiving a disposable syringe or carpule, and means for actuating the syringe or carpule to force fluids contained therein into a bore passing through the body. The opposed end of the body contains a barrel, with or without an extension, and a needle, all of which have coaxial communicating through bores so that the irrigating or injecting material may be forced out of the medicator dental ampule, commonly called a ''''carpule,'''' or syringe through the bores, and out through the needle. The handgrip portion also contains a through bore, valving means and means for attachment to a vacuum source so that by moving of the valving means, either the bore communicating with the syringe or carpule is opened and the bore leading to the vacuum source is closed or vice-versa depending upon the particular operation desired.
Inventors
- 👤 O Malmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:30
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/0208
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
204 words
A dental injection and evacuation instrument for use endontics with a vacuum source and a fluid-containing ampule having a self-contained plunger, comprising: A. an elongate body having 1. an ampule-receiving bore in one end of said body and 2. a through central bore interconnecting said ampule-receiving bore and the opposed end of said body; B. a handgrip 1. secured to said body 2. and having a through bore therein that interconnects with said through central bore of said body between said opposed end of said body and said ampule-receiving bore 3. and adapted to be connected to said vacuum source; C. valve means carried by said body and said handgrip and including an elongated body received in said handgrip and a valve resealably received on the inboard end of body and projecting into the point of interconnection of said central bore of said body and said bore of said handgrip for selectively closing off said bore in said handgrip and opening said bore in said body; and D. depressor means telescopically carried by onE end of said body for forcing fluid from said ampule into said through central bore in said body and having contact means adapted to contact the plunger of said ampule.
Claim 2
Dependent Claim
204 words
A dental injection and evacuation instrument for use endontics with a vacuum source and a fluid-containing ampule having a self-contained plunger, comprising: A. an elongate body having 1. an ampule-receiving bore in one end of said body and 2. a through central bore interconnecting said ampule-receiving bore and the opposed end of said body; B. a handgrip 1. secured to said body 2. and having a through bore therein that interconnects with said through central bore of said body between said opposed end of said body and said ampule-receiving bore 3. and adapted to be connected to said vacuum source; C. valve means carried by said body and said handgrip and including an elongated body received in said handgrip and a valve resealably received on the inboard end of body and projecting into the point of interconnection of said central bore of said body and said bore of said handgrip for selectively closing off said bore in said handgrip and opening said bore in said body; and D. depressor means telescopically carried by onE end of said body for forcing fluid from said ampule into said through central bore in said body and having contact means adapted to contact the plunger of said ampule.
Claim 3
Dependent Claim
27 words
and having a through bore therein that interconnects with said through central bore of said body between said opposed end of said body and said ampule-receiving bore
Claim 4
Dependent Claim
27 words
and having a through bore therein that interconnects with said through central bore of said body between said opposed end of said body and said ampule-receiving bore
Claim 5
Dependent Claim
18 words
a through central bore interconnecting said ampule-receiving bore and the opposed end of said body; B. a handgrip
Claim 6
Dependent Claim
18 words
a through central bore interconnecting said ampule-receiving bore and the opposed end of said body; B. a handgrip
Claim 7
Dependent Claim
10 words
a substantially closed end; and B. said contact means include
Claim 8
Dependent Claim
10 words
a substantially closed end; and B. said contact means include
Claim 9
Dependent Claim
10 words
The instrument of claim 1 wherein A. said sleeve has
Claim 10
Dependent Claim
10 words
a substantially closed end with a through bore therein and
Claim 11
Dependent Claim
10 words
a substantially closed end with a through bore therein and
Claim 12
Dependent Claim
27 words
and having a through bore therein that interconnects with said through central bore of said body between said opposed end of said body and said ampule-receiving bore
Claim 13
Dependent Claim
27 words
and having a through bore therein that interconnects with said through central bore of said body between said opposed end of said body and said ampule-receiving bore
Claim 14
Dependent Claim
18 words
a through central bore interconnecting said ampule-receiving bore and the opposed end of said body; B. a handgrip
Claim 15
Dependent Claim
18 words
a through central bore interconnecting said ampule-receiving bore and the opposed end of said body; B. a handgrip
Claim 16
Dependent Claim
81 words
and adapted to be connected to said vacuum source; C. valve means carried by said body and said handgrip and projecting into the point of interconnection of said central bore of said body and said bore of said handgrip for selectively closing off said bore in said handgrip and opening said bore in said body; and D. depressor means telescopically carried by one end of said body for forcing fluid from said ampule into said through central bore in said body.
Claim 17
Dependent Claim
81 words
and adapted to be connected to said vacuum source; C. valve means carried by said body and said handgrip and projecting into the point of interconnection of said central bore of said body and said bore of said handgrip for selectively closing off said bore in said handgrip and opening said bore in said body; and D. depressor means telescopically carried by one end of said body for forcing fluid from said ampule into said through central bore in said body.
Claim 18
Dependent Claim
42 words
a plunger having a. a cap releasably secured to said substantially closed end of said sleeve and b. a plunger rod projecting from said cap through said through bore of said closed end and adapted to contact one end of said ampule.
Claim 19
Dependent Claim
42 words
a plunger having a. a cap releasably secured to said substantially closed end of said sleeve and b. a plunger rod projecting from said cap through said through bore of said closed end and adapted to contact one end of said ampule.
Claim 20
Dependent Claim
113 words
and adapted to be connected to said vacuum source; C. valve means carried by said body and said handgrip and including an elongated body received in said handgrip and a valve resealably received on the inboard end of body and projecting into the point of interconnection of said central bore of said body and said bore of said handgrip for selectively closing off said bore in said handgrip and opening said bore in said body; and D. depressor means telescopically carried by onE end of said body for forcing fluid from said ampule into said through central bore in said body and having contact means adapted to contact the plunger of said ampule.
Claim 21
Dependent Claim
113 words
and adapted to be connected to said vacuum source; C. valve means carried by said body and said handgrip and including an elongated body received in said handgrip and a valve resealably received on the inboard end of body and projecting into the point of interconnection of said central bore of said body and said bore of said handgrip for selectively closing off said bore in said handgrip and opening said bore in said body; and D. depressor means telescopically carried by onE end of said body for forcing fluid from said ampule into said through central bore in said body and having contact means adapted to contact the plunger of said ampule.
Claim 22
Dependent Claim
39 words
The instrument of claim 1 further characterized by the presence of a needle releasably carried by said opposed end of said body and having a through central bore in coaxial alignment with said through central bore of said body.
Claim 23
Dependent Claim
41 words
The instrument of claim 1 further characterized by the presence of a barrel having one end releasably attached to said opposed end of said body and having a through bore in coaxial alignment with said through central bore of said body.
Claim 24
Dependent Claim
38 words
The instrument of claim 4 further characterized by the presence of a needle releasably attached to the opposed end of said barrel and having a through bore in coaxial alignment with said through central bore of said body.
Claim 25
Dependent Claim
41 words
The instrument of claim 4 further characterized by the presence of an extension barrel having one end releasably attached to the opposed end of said barrel and having a through bore in coaxial alignment with said central bore of said barrel.
Claim 26
Dependent Claim
39 words
The instrument of claim 6 further characterized by the presence of a needle releasably attached to the opposed end of said extension barrel and having a through bore in coaxial alignment with said through bore of said extension barrel.
Claim 27
Dependent Claim
22 words
A Dental injection and evacuation instrument for use with a vacuum source and a fluid-containing ampule, comprising; A. an elongate body having
Claim 28
Dependent Claim
22 words
A Dental injection and evacuation instrument for use with a vacuum source and a fluid-containing ampule, comprising; A. an elongate body having
Claim 29
Dependent Claim
34 words
The instrument of claim 8 further characterized by; A. said body of said valve means being rotatably received in said handgrip; B. an operating handle carried on the opposed projecting end of said body.
Claim 30
Dependent Claim
15 words
The instrument of claim 9 wherein said depressor means include A. a hollow sleeve having
Claim 31
Dependent Claim
30 words
The instrument of claim 10 further characterized by the presence of means disposed in said central bore of said body and adapted to puncture the opposed end of said ampule.
Claim 32
Dependent Claim
31 words
The instrument of claim 10 further characterized by the presence of locking means carried by said cap of said plunger and said sleeve for releasably interconnecting said plunger and said sleeve.
Claim 33
Dependent Claim
39 words
The instrument of claim 9 further characterized by the presence of a needle releasably carried by said opposed end of said body and having a through central bore in coaxial alignment with said through central bore of said body.
Claim 34
Dependent Claim
41 words
The instrument of claim 9 further characterized by the presence of a barrel having one end releasably atTached to said opposed end of said body and having a through bore in coaxial alignment with said through central bore of said body.
Claim 35
Dependent Claim
38 words
The instrument of claim 14 further characterized by the presence of a needle releasably attached to the opposed end of said barrel and having a through bore in coaxial alignment with said through central bore of said body.
Claim 36
Dependent Claim
41 words
The instrument of claim 14 further characterized by the presence of an extension barrel having one end releasably attached to the opposed end of said barrel and having a through bore in coaxial alignment with said central bore of said barrel.
Claim 37
Dependent Claim
39 words
The instrument of claim 16 further characterized by the presence of a needle releasably attached to the opposed end of said extension barrel and having a through bore in coaxial alignment with said through bore of said extension barrel.
Claim 38
Dependent Claim
34 words
The instrument of claim 1 further characterized by; A. said body of said valve means being rotatably received in said handgrip; B. An operating handle carried on the opposed projecting end of said body.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |