US3760810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical ligating instrument of the endoscope type
Assignee: HOORN M VAN
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Filing: 1971-12-07
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Granted: 1973-09-25
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Expires: 1991-12-07
Abstract
Abstract A surgical instrument for ligating internal structures of a cavity in the human body, such as internal hemorrhoids, by means of at least one elastic cord comprises two tubes mounted for relative sliding movement one inside the other, the inner tube protruding at the front of the outer tube. A grip member is connected to one of said two tubes and has actuating means to produce a relative displacement of the outer tube forwardly relative to the inner tube. The outer tube and/or the inner tube has a greater length than the depth of the cavity up to the structure to be ligated, so that it constitutes an endoscope.
Inventors
- 👤 Hoorn M Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:24
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12009; A61B17/12013; A61B1/00; A61B1/31; A61B1/06; A61B1/07; A61B2017/12018
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
198 words
A surgical instrument for ligating internal structures such as hemorrhoids and the like within a cavity of the human body by the application of at least one elastic cord, said instrument comprising, in combination: a. an outer hollow tube having a forward end and a rearward end; b. an inner hollow tube having a forward end and a rearward end and coaxially and slidably received within the outer hollow tube wherein the length of at least one tube exceeds the depth of the body cavity up to the structure to be ligated, said rearward end of the inner tube being open; c. said inner tube further including means for passing illuminating light therethrough; d. means for retaining an elastic cord on the forward end of the inner tube while it protrudes beyond the forward end of the outer tube; e. handle means associated with the rear-ward ends of the outer and inner tubes; and f. means secured to the handle means for imparting a relative movement between the outer and inner tubes so that the elastic cord is caused to slide off of the forward end of the second tube and attach itself to the structure being ligated.
Claim 2
Dependent Claim
198 words
A surgical instrument for ligating internal structures such as hemorrhoids and the like within a cavity of the human body by the application of at least one elastic cord, said instrument comprising, in combination: a. an outer hollow tube having a forward end and a rearward end; b. an inner hollow tube having a forward end and a rearward end and coaxially and slidably received within the outer hollow tube wherein the length of at least one tube exceeds the depth of the body cavity up to the structure to be ligated, said rearward end of the inner tube being open; c. said inner tube further including means for passing illuminating light therethrough; d. means for retaining an elastic cord on the forward end of the inner tube while it protrudes beyond the forward end of the outer tube; e. handle means associated with the rear-ward ends of the outer and inner tubes; and f. means secured to the handle means for imparting a relative movement between the outer and inner tubes so that the elastic cord is caused to slide off of the forward end of the second tube and attach itself to the structure being ligated.
Claim 3
Dependent Claim
24 words
The instrument according to claim 1 wherein the means for producing the relative movement between the outer and inner tubes includes a trigger means.
Claim 4
Dependent Claim
44 words
The instrument according to claim 2 wherein the handle means includes a channel formed therein and a. the handle means is secured to the outer tube; and b. the trigger means is secured to the inner tube and is movably received within the channel.
Claim 5
Dependent Claim
39 words
The instrument according to claim 3 wherein the handle member includes: a. a recess; and b. a spring blade disposed within the recess for biasing the trigger means so that the inner tube is pushed in a forward direction.
Claim 6
Dependent Claim
82 words
The instrument according to claim 1 wherein the handle member is fixed to said outer tube and comprises a spring disposed between said inner and said outer tube to urge said inner tube in a rearward direction against an abutment so as to maintain the inner tube in a position wherein its forward end is located forwardly of the outer tube forward end, and where in said abutment is retractable against a spring force by a trigger mounted on said handle member.
Claim 7
Dependent Claim
72 words
The instrument according to claim 1 wherein the handle means is secured to the inner tube and includes: a. a pivotal lever; b. an actuation rod connected at its one end to the outer tube and disposed at its other end adjacent the pivotal lever; and c. spring means for biasing the other end of the rod against the pivotal lever so that the outer tube is urged in a rearward direction.
Claim 8
Dependent Claim
52 words
The instrument according to claim 1 wherein: a. the inner tube has a smaller length than the depth of said cavity up to the structure to be ligated; and b. the outer tube has a forward portion adapted to slidably receive the inner tube and a conical portion increasing in diameter rearwardly.
Claim 9
Dependent Claim
17 words
The instrument according to claim 1 wherein the handle means is detachably secured to the outer tube.
Claim 10
Dependent Claim
31 words
The instrument according to claim 8 wherein a. the handle means includes a groove; and b. the outer tube includes a longitudinal rib of dove-tail shape for engagement within the groove.
Claim 11
Dependent Claim
19 words
The instrument according to claim 9 wherein the groove is provided with a slit for receiving a trigger means.
Claim 12
Dependent Claim
30 words
The instrument of claim 1 including removable dilating means for facilitating the introduction of the associated tubes with the elastic cord into the cavity containing the structure to be ligated.
Claim 13
Dependent Claim
37 words
The instrument according to claim 1 wherein the inner tube is adapted to be closed at its rearward end by a transparent partition and that the interior of the inner tube is connectable to a vacuum pump.
Claim 14
Dependent Claim
45 words
The instrument according to claim 12 wherein the vacuum pump is connected by means of a flexible tube to a sleeve which is tightly secured to the rearward end of the inner tube and which is closed at its rearward extremity by a transparent partition.
Claim 15
Dependent Claim
45 words
The instrument according to claim 13 wherein the tubes include: a. a hollow projection inclined in a rearward direction with respect to the longitudinal axis of the tubes; and b. an illumination source associated with the hollow projection for illuminating the structure to be ligated.
Claim 16
Dependent Claim
36 words
The instrument according to claim 14 wherein both tubes have a length greater than the depth of said cavity up to the structure to be ligated and the hollow projection is formed on the outer tube.
Claim 17
Dependent Claim
40 words
The instrument according to claim 15 wherein the inner tube has a longitudinal slot located in the region of the hollow projection on the outer tube to permit propagation of light beams from said light source into the inner tube.
Claim 18
Dependent Claim
30 words
The instrument according to claim 15 wherein the inner tube is made of a transparent material to permit propagation of light beams from said light source into the inner tube.
Claim 19
Dependent Claim
38 words
The instrument according to claim 17 wherein the forward end of the transparent tube is formed by a sleeve disposed around the outer face of the transparent tube to prevent deposition of soiling substances on the transparent tube.
Claim 20
Dependent Claim
46 words
The instrument according to claim 14 wherein the hollow projection includes: a. a mass of bundled optical fibers disposed therein; b. a flexible tube forming an extension thereof; and c. an intense light source for transmitting light beams through the flexible tube and the optical fibers.
Claim 21
Dependent Claim
34 words
The instrument according to claim 1 further including a sleeve secured to the rearward end of the inner tube, said sleeve having a laterally extending hollow portion for connection to an intense light source.
Claim 22
Dependent Claim
63 words
The instrument according to claim 20 wherein a ring of transparent material is provided on the inner face of the sleeve to permit propagation of the light beams from said intense light source toward the forward end of the inner tube and wherein the ring is covered on its inner face by a metallic film for avoiding a parasitic diffusion of the light.
Claim 23
Dependent Claim
30 words
The instrument according to claim 21 wherein a mass of bundled optical fibers is disposed in said laterally extending hollow projection and is connected to said ring of transparent material.
Claim 24
Dependent Claim
82 words
The instrument according to claim 1 wherein the means for placing an elastic cord on the forward end of the inner tube includes: a. a forward conical-shaped portion; b. an intermediate cylindrical-shaped portion whose diameter is equal to the greatest diameter of the forward conical-shaped portion; c. a rearward cylindrical-shaped portion having a lesser diameter than and forming an extension of the intermediate cylindrical-shaped portion; d. a shoulder on said intermediate cylindrical-shaped portion for engaging the forward end of the inner tube.
Claim 25
Dependent Claim
73 words
The instrument of claim 11 wherein the means for facilitating the introduction of the associated tubes includes An obturator bar in sliding engagement with the inner tube and having: a. a greater length than the depth of said cavity up to the structure to be ligated; b. an ogival-shaped extremity protruding at the forward end of the inner tube; and c. a rear abutment for engaging the rearward end of the inner tube.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |