US4666433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gastrostomy feeding device
Assignee: Avcarb Material Solutions Inc
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Filing: 1985-10-22
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Granted: 1987-05-19
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Expires: 2005-10-22
Abstract
Abstract A device is disclosed for supplying food and medication to a patient, and for drainage and/or decompression, the device being inserted through a stoma and into the patient's stomach. The device is secured in place by an inflatable balloon or a mushroom tip within the stomach, and by an adjustable ring on the abdominal wall. The adjustable ring also prevents ingestion of the device into the stomach. During use, the ring can be retracted to permit cleaning of the stoma area. The ring can be perforated and ribbed to provide improved ventilation of the stoma area during use. The device can be used with conventional surgically formed procedures, and is replaceable at considerably longer intervals than present devices. Servicing of the device can be made at home, rather than at a hospital.
Inventors
- 👤 Stephen K. Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:59
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0015; A61J15/0026; A61J15/003; A61J15/0034; A61J15/0038; A61J15/0042; A61J15/0053; A61J15/0061; A61J15/0069; A61M; A61M25/00; A61M25/01; A61M25/02; A61M2025/0213; A61M2025/0233; Y; Y10; Y10S; Y10S128/00; Y10S128/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
308 words
A gastrostomy catheter device for feeding into a patient's stomach, comprising: a. an elongate feeding tube, including an outer extension from the patient's stomach, the tube having a feeding inlet end mounted on the outer extension and an outlet end positioned within the patient's stomach; b. an expandable mushroom tip positioned at the outlet end of the tube; c. a closure plug for the feeding inlet and secured to the feeding tube by an integral band; and, d. a locking ring positioned medially along the outer extension of the tube, and sized to frictionally engage the tube, and slidably mounted therealong, and adjustable solely by frictional engagement with the tube to accommodate to the size of the wearer, the locking ring providing a plurality of perforations and spaced ridges to enable air circulation between the locking ring and patient's body; whereby, i. when the mushroom tip is contracted, the feeding tube may be inserted through a stoma and into the patient's stomach; ii. when the mushroom tip is expanded, it will secure the device within the patient's stomach and form a seal adjacent the stoma; iii. securement of the ring to the tube being provided solely by frictional engagement therebetween, to secure the device within the patient's body and to prevent undesirable movement of the ring along the tube, whether in the dry state or when lubricated by body fluids, the locking ring being manually adjustable along the tube to accommodate to the size of the patient, and the mushroom tip and ring both functioning to maintain the device in place in the patient; iv. retraction of the ring being entirely against the force of frictional engagement to enable the stoma and adjacent areas to be cleaned; and, v. when the mushroom tip is contracted, retraction of the ring enables the device to be removed from the patient.
Claim 2
Dependent Claim
308 words
A gastrostomy catheter device for feeding into a patient's stomach, comprising: a. an elongate feeding tube, including an outer extension from the patient's stomach, the tube having a feeding inlet end mounted on the outer extension and an outlet end positioned within the patient's stomach; b. an expandable mushroom tip positioned at the outlet end of the tube; c. a closure plug for the feeding inlet and secured to the feeding tube by an integral band; and, d. a locking ring positioned medially along the outer extension of the tube, and sized to frictionally engage the tube, and slidably mounted therealong, and adjustable solely by frictional engagement with the tube to accommodate to the size of the wearer, the locking ring providing a plurality of perforations and spaced ridges to enable air circulation between the locking ring and patient's body; whereby, i. when the mushroom tip is contracted, the feeding tube may be inserted through a stoma and into the patient's stomach; ii. when the mushroom tip is expanded, it will secure the device within the patient's stomach and form a seal adjacent the stoma; iii. securement of the ring to the tube being provided solely by frictional engagement therebetween, to secure the device within the patient's body and to prevent undesirable movement of the ring along the tube, whether in the dry state or when lubricated by body fluids, the locking ring being manually adjustable along the tube to accommodate to the size of the patient, and the mushroom tip and ring both functioning to maintain the device in place in the patient; iv. retraction of the ring being entirely against the force of frictional engagement to enable the stoma and adjacent areas to be cleaned; and, v. when the mushroom tip is contracted, retraction of the ring enables the device to be removed from the patient.
Claim 3
Dependent Claim
15 words
The catheter of claim 1, constructed of a medical grade silicone elastomer, and the like.
Claim 4
Dependent Claim
20 words
The catheter of claim 2, in which the spaced ridges of the locking ring are arranged concentrically of the ring.
Claim 5
Dependent Claim
20 words
The catheter device of claim 1, in which the locking ring defines spaced ridges directed radially outwards from the ring.
Claim 6
Independent Claim
81 words
A method for gastrostomy feeding, comprising: a. inserting a gastrostomy tube though a stoma and into a patient's stomach; and, b. supplying food through the tube to the patient's stomach, the said tube comprising: 1. an elongate feeding tube, including an outer extension from the patient's stomach, the tube having a feeding inlet end mounted on the outer extension and an outlet end positioned within the patient's stomach; 2. an expandable mushroom tip positioned at the outlet end of the tube;
Claim 7
Independent Claim
81 words
A method for gastrostomy feeding, comprising: a. inserting a gastrostomy tube though a stoma and into a patient's stomach; and, b. supplying food through the tube to the patient's stomach, the said tube comprising: 1. an elongate feeding tube, including an outer extension from the patient's stomach, the tube having a feeding inlet end mounted on the outer extension and an outlet end positioned within the patient's stomach; 2. an expandable mushroom tip positioned at the outlet end of the tube;
Claim 8
Dependent Claim
249 words
a closure plug for the feeding inlet and secured to the feeding tube by an integral band; and, 4. a locking ring positioned medially along the outer extension of the tube, and sized to frictionally engage the tube, and slidably mounted therealong, and adjustable solely by frictional engagement with the tube to accommodate to the size of the wearer, the locking ring providing a plurality of perforations and spaced ridges to enable air circulation between the locking ring and patient's body; whereby, i. when the mushroom tip is contracted, the feeding tube may be inserted through a stoma and into the patient's stomach; ii. when the mushroom tip is expanded, it will secure the device within the patient's stomach and form a seal adjacent the stoma; iii. securement of the ring to the tube being provided solely by frictional engagement therebetween, to secure the device within the patient's body and to prevent undesirable movement of the ring along the tube, whether in the dry state or when lubricated by body fluids, the locking ring being manually adjustable along the tube to accommodate to the size of the patient, and the mushroom tip and ring both functioning to maintain the device in place in the patient; iv. retraction of the ring being entirely against the force of frictional engagement to enable the stoma and adjacent areas to be cleaned; and, v. when the mushroom tip is contracted, retraction of the ring enables the device to tbe removed from the patient.
Claim 9
Dependent Claim
249 words
a closure plug for the feeding inlet and secured to the feeding tube by an integral band; and, 4. a locking ring positioned medially along the outer extension of the tube, and sized to frictionally engage the tube, and slidably mounted therealong, and adjustable solely by frictional engagement with the tube to accommodate to the size of the wearer, the locking ring providing a plurality of perforations and spaced ridges to enable air circulation between the locking ring and patient's body; whereby, i. when the mushroom tip is contracted, the feeding tube may be inserted through a stoma and into the patient's stomach; ii. when the mushroom tip is expanded, it will secure the device within the patient's stomach and form a seal adjacent the stoma; iii. securement of the ring to the tube being provided solely by frictional engagement therebetween, to secure the device within the patient's body and to prevent undesirable movement of the ring along the tube, whether in the dry state or when lubricated by body fluids, the locking ring being manually adjustable along the tube to accommodate to the size of the patient, and the mushroom tip and ring both functioning to maintain the device in place in the patient; iv. retraction of the ring being entirely against the force of frictional engagement to enable the stoma and adjacent areas to be cleaned; and, v. when the mushroom tip is contracted, retraction of the ring enables the device to tbe removed from the patient.
Claim 10
Dependent Claim
23 words
The method of claim 5, in which the tube and locking ring are constructed of a medical grade silicon elastomer, and the like.
Claim 11
Dependent Claim
20 words
The method of claim 5, in which the spaced ridges of the locking ring are arranged concentrically of the ring.
Claim 12
Dependent Claim
19 words
The method of claim 5, in which the locking ring defines spaced ridges directed radially outwards from the ring.
References Cited (Backward Citations)
US3149868A
Cited
US3253594A
Cited
US3915171A
Cited
US4089337A
Cited
US4114625A
Cited
US4393873A
Cited
US4392855A
Cited
US4543089A
Cited
US4516968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |