CA3229262A1 - Prosthetic having interchangeable internal cartridges - Google Patents
Prosthetic having interchangeable internal cartridges Download PDFInfo
- Publication number
- CA3229262A1 CA3229262A1 CA3229262A CA3229262A CA3229262A1 CA 3229262 A1 CA3229262 A1 CA 3229262A1 CA 3229262 A CA3229262 A CA 3229262A CA 3229262 A CA3229262 A CA 3229262A CA 3229262 A1 CA3229262 A1 CA 3229262A1
- Authority
- CA
- Canada
- Prior art keywords
- support member
- finger
- housing
- terminal device
- cable
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000002747 voluntary effect Effects 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/54—Artificial arms or hands or parts thereof
- A61F2/58—Elbows; Wrists ; Other joints; Hands
- A61F2/583—Hands; Wrist joints
- A61F2/588—Hands having holding devices shaped differently from human fingers, e.g. claws, hooks, tubes
Abstract
A voluntary dosing and locking prosthetic terminal device (1) having complex internal mechanisms configured into interchangeable cartridges (10) that provide end users with the capability of servicing the prosthetic on their own.
Description
CA031/9/61101401.13 =
PROSTHETIC HAVING
INTERCHANGEABLE INTERNAL CARTRIDGES
FIELD WM'. INVENTION
'This invention relates to prosthetics and more particularly a voluntary closing and S locking prosthetic hand/hook, also referred to as a terminal device, having complex internal mechanisms configured into interchangeable cartridges that provide end users with the capability of servicing the prosthetic on their own.
BACKGROUND OF THE INVENTION.
A prosthetic hand /hook, also known as a terminal device, is an artificial device that replaces a missing body part and is intended to restore the normal functions of the missing body part. For example, a body powered split hook prosthetic terminal device replaces the grasping and holding functions of a missing hand. Body powered or cable operated hooks work by attaching a harness and cable around an opposite shoulder of the damaged amt.
The user may then actuate the opening and/or closing of the split hook. by moving his or her opposite shoulder.
Two types of body-powered prosthetic split hooks exist, voluntary opening "pull to open" and voluntary closing "pull to dose." Virtually all "split hook"
prostheses operate .with a voluntary opening type system. Users of voluntary opening systems rely on simple designs that employ elastic bands for gripping force while users of voluntary closing systems rely on the user to apply tension for gripping force. A. voluntary closing terminal device can be designed to lock closed allowing the user to hold an object without constant force input. The locking voluntary closing system is a superior prosthetic terminal device, CA031/9/61101401.13 but is not widely used due to a large upfront initial cost and more importantly the cost of maintenance When a locking system on a user's voluntary closing device =fails, the user normally must ship the prosthetic to a professional Who can repair the internal parts. This is an expensive endeavor and leaves the user without. his or her. prosthetic for a period of days or weeks, Therefore, a need exists for a prosthetic hook having complex internal mechanisms configured into interchangeable cartridges that provide end users with the capability of servicing the prosthetic on their own.
The relevant prior art includes the following references:
Patent No. Inventor Issue/Publication Date (U.S. Patent. References)
PROSTHETIC HAVING
INTERCHANGEABLE INTERNAL CARTRIDGES
FIELD WM'. INVENTION
'This invention relates to prosthetics and more particularly a voluntary closing and S locking prosthetic hand/hook, also referred to as a terminal device, having complex internal mechanisms configured into interchangeable cartridges that provide end users with the capability of servicing the prosthetic on their own.
BACKGROUND OF THE INVENTION.
A prosthetic hand /hook, also known as a terminal device, is an artificial device that replaces a missing body part and is intended to restore the normal functions of the missing body part. For example, a body powered split hook prosthetic terminal device replaces the grasping and holding functions of a missing hand. Body powered or cable operated hooks work by attaching a harness and cable around an opposite shoulder of the damaged amt.
The user may then actuate the opening and/or closing of the split hook. by moving his or her opposite shoulder.
Two types of body-powered prosthetic split hooks exist, voluntary opening "pull to open" and voluntary closing "pull to dose." Virtually all "split hook"
prostheses operate .with a voluntary opening type system. Users of voluntary opening systems rely on simple designs that employ elastic bands for gripping force while users of voluntary closing systems rely on the user to apply tension for gripping force. A. voluntary closing terminal device can be designed to lock closed allowing the user to hold an object without constant force input. The locking voluntary closing system is a superior prosthetic terminal device, CA031/9/61101401.13 but is not widely used due to a large upfront initial cost and more importantly the cost of maintenance When a locking system on a user's voluntary closing device =fails, the user normally must ship the prosthetic to a professional Who can repair the internal parts. This is an expensive endeavor and leaves the user without. his or her. prosthetic for a period of days or weeks, Therefore, a need exists for a prosthetic hook having complex internal mechanisms configured into interchangeable cartridges that provide end users with the capability of servicing the prosthetic on their own.
The relevant prior art includes the following references:
Patent No. Inventor Issue/Publication Date (U.S. Patent. References)
2,706,296 Fletcher et aL 04-194955 2,364,313 Pecorella 12-5-2044 2,528,322 Syverud et al. 10-31-1950 2,540,375 Motifs 02-06-1951 8,900,327 Bends et al. 12-02-2014 2,545,542 Fletcher 03-204951
3,413,658 Becker 12-03-1.968 FR828, 272 Nove 02-07-1938 CA031/9/61101401.13 SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a .prosthetic hook having complex internal mechanisms configured into interchangeable cartrid,ges that provide end users with the capability of servicing the. prosthetic terminal device on their own. =
The present invention fulfills the above and other objects by providing a voluntary closing and locking system split hook. prosthetic terminal device wherein the normally complex internal mechanisms have been replaced with interchangeable component cartridges that are easily interchangeable using one hand. The configuration of the interchangeable component cartridges allows for an added benefit of centering a cable support arm on the housing, thereby making the prosthetic terminal device capable of being used on a right arm or a left arm.
The above and other objects, features and advantages of the present invention should become even more readily apparent to those skilled in the art upon a reading of the following detailed description in conjunction with the drawings wherein there is shown and described illustrative embodiments of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following detailed description, reference will be made to the attached drawings in which:
MG. 1. is a top perspective view of a split hook prosthetic terminal device of the present invention;
CA031/9/61101401.13 FIG. 2 is a top perspective view of an open housing of the split hook.
prosthetic terminal device of the present invention wherein the cartridge has been removed from the housing;
FIG. 3 is a top perspective view of a cartridge of a split hook prosthetic terminal device of the present invention; and FIG. 4 is a top perspective view of a cartridge inserted into a housing of a split hook prosthetic terminal device of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
For purposes of describing the preferred embodiment, the terminology used in reference to the numbered accessories in the drawings is as follows:
1. split hook prosthetic terminal device, generally 2. housing 3. base
The primary object of the present invention is to provide a .prosthetic hook having complex internal mechanisms configured into interchangeable cartrid,ges that provide end users with the capability of servicing the. prosthetic terminal device on their own. =
The present invention fulfills the above and other objects by providing a voluntary closing and locking system split hook. prosthetic terminal device wherein the normally complex internal mechanisms have been replaced with interchangeable component cartridges that are easily interchangeable using one hand. The configuration of the interchangeable component cartridges allows for an added benefit of centering a cable support arm on the housing, thereby making the prosthetic terminal device capable of being used on a right arm or a left arm.
The above and other objects, features and advantages of the present invention should become even more readily apparent to those skilled in the art upon a reading of the following detailed description in conjunction with the drawings wherein there is shown and described illustrative embodiments of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following detailed description, reference will be made to the attached drawings in which:
MG. 1. is a top perspective view of a split hook prosthetic terminal device of the present invention;
CA031/9/61101401.13 FIG. 2 is a top perspective view of an open housing of the split hook.
prosthetic terminal device of the present invention wherein the cartridge has been removed from the housing;
FIG. 3 is a top perspective view of a cartridge of a split hook prosthetic terminal device of the present invention; and FIG. 4 is a top perspective view of a cartridge inserted into a housing of a split hook prosthetic terminal device of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
For purposes of describing the preferred embodiment, the terminology used in reference to the numbered accessories in the drawings is as follows:
1. split hook prosthetic terminal device, generally 2. housing 3. base
4. cover
5. stud
6. first finger
7. second finger
8, split hook
9. keyed socket connection points
10. cable support arm member
11. top edge of housing
12. bottom edge of housing CA031/9/61101401.13
13. circular-shaped recess
14. shall:
is. constant force spring 16, cable arm support member 17. second finger support member 18. engagement means 19. cartridge 20. first lever 21, second lever 22. locking mechanism 23. friction bar 24. friction pad 25. semi-circular locking cam 26, pin With reference to FIG. 1, a top view of a split hook prosthetic terminal device 1 of the present invention is illustrated. The split hook prosthetic terminal device 1 comprises a housing 2 having a base 3 and a cover 4. A stud 5 for mounting the split hook prosthetic terminal device 1 extends from a proximal end of the base 3, a first finger 6 and a. second .finger 7 that form the split hook. 8 extend from a distal end of the base 3.
The stud 5 is preferably molded into the base and/or integrated therein so the stud 5 and the base 3 form a single unit. The fingers 6 and 7 preferably have keyed socket connection points 9 with the housing 2 and second finger support member 17 to allow the fingers 6, 7 to be rotated.
CA031/9/61101401.13 A cable support arm 10 extends from the cable arm support member 16 and is centered between a top edge 11 of the cover 4 and a bottom edge 12 of the base 3. The centered position of the cable support arm 10 allows the split hook prosthetic terminal device 1 to be ambidextrous and worn on the right or left arm. This is in contrast to a conventional voluntary closing split hook design, which have off set cable support arms, thereby limiting each device to a right-handed device or a left-handed device.
With reference to FIG. 2, a top perspective view of an open housing 2 of the split hook prosthetic terminal device 1 of the present invention wherein a cartridge 19 has been removed from the housing 2 is illustrated.
An internal portion of the base 3 of the housing 2 forms a circular-shaped recess 13 having a shaft 14 centered therein. The shaft 14 supports a constant force spring 15, such as a flat spiral. spring or torsion spring. A cable arm support member 16 is supported by the shaft 14 within the circular-shaped recess 13 above the constant force spring 1.5. The cable arm support member 16 supports cable support arm 10 as illustrated in FIG. 1. The cable arm support member 16 and a second finger support member 17 are the support carrier for the cartridge 19. The second finger support member 17 supports the second finger 7 which is capable of being actuated by engaging the cable support arm 10 when the cartridge 19 is inserted, as illustrated in FIG. 1.
The cable arm support member 16 and the second finger support member 17 are each rotational around the shaft 14, thereby allowing each to rotate and actuate the second finger 7 when the cable support arm 10 is actuated.
CA031/9/61101401.13 One or more engagement means 18, such as a mirrored profile, channels, slots, ridges, tabs and so forth are located on an interior surface of the cable arm support member 16 and the second finger support member 17.
With reference to FIG. 3, a top perspective view of a cartridge 19 of a split hook .. prosthetic terminal device 1. of the present invention is illustrated. The cartridge 19 comprises a first lever 20 and second lever 21, each attached to a II-shaped locking mechanism 22 that is slidably attached to a curved friction bar 23. The U-shaped locking mechanism 22 consists of a friction pad 24 and a semi-circular locking cam 25.
The semi-.
circular locking cam 25 pivots on pin 26, and engages curved friction bar to actuate locking the device in a closed position. The components of the cartridge 19 assist in maintaining the split hook 8 in a locked and grasping position after the cable support arm 10 has been actuated to close the split hook 8.
One or more engagement means 1.8, such as a mirrored profile, channels, slots, ridges, tabs and so forth, are located on an exterior surface of the first lever 20 and second is lever 21. to engage the cable arm support member 16 and the second finger support member 17.
With reference to FIG. 4, a top perspective view of a cartridge 19 inserted into the cable arm support member 1.6 and second finger support member 17 of a split hook prosthetic terminal device 1 of the present invention is illustrated. One or more engagement means 18, such as a mirrored profile, channels, slots, ridges, tabs and so forth are located on an exterior surface of the first lever 20 and an exterior surface of the second lever 21 to engage one or more engagement means 1.8 located on interior surfaces of the cable arm CA031/9/61101401.13 support member 16 and the second finger support member 17. The cartridge 1.9 and components thereof work to maintain said cable arm support member 16 and said second finger support member 17 in temporarily locked positions to grasp objects.
it is k) be understood that while a preferred embodiment a the invention is illustrated, it is not to be limited to .the specific form or arrangement of parts herein described and shown. It will be apparent to those skilled in the art that various changes may be made without departing from the scope of the invention and the invention is not to be considered limited to what is shown and described in. the specification and drawings.
1.0
is. constant force spring 16, cable arm support member 17. second finger support member 18. engagement means 19. cartridge 20. first lever 21, second lever 22. locking mechanism 23. friction bar 24. friction pad 25. semi-circular locking cam 26, pin With reference to FIG. 1, a top view of a split hook prosthetic terminal device 1 of the present invention is illustrated. The split hook prosthetic terminal device 1 comprises a housing 2 having a base 3 and a cover 4. A stud 5 for mounting the split hook prosthetic terminal device 1 extends from a proximal end of the base 3, a first finger 6 and a. second .finger 7 that form the split hook. 8 extend from a distal end of the base 3.
The stud 5 is preferably molded into the base and/or integrated therein so the stud 5 and the base 3 form a single unit. The fingers 6 and 7 preferably have keyed socket connection points 9 with the housing 2 and second finger support member 17 to allow the fingers 6, 7 to be rotated.
CA031/9/61101401.13 A cable support arm 10 extends from the cable arm support member 16 and is centered between a top edge 11 of the cover 4 and a bottom edge 12 of the base 3. The centered position of the cable support arm 10 allows the split hook prosthetic terminal device 1 to be ambidextrous and worn on the right or left arm. This is in contrast to a conventional voluntary closing split hook design, which have off set cable support arms, thereby limiting each device to a right-handed device or a left-handed device.
With reference to FIG. 2, a top perspective view of an open housing 2 of the split hook prosthetic terminal device 1 of the present invention wherein a cartridge 19 has been removed from the housing 2 is illustrated.
An internal portion of the base 3 of the housing 2 forms a circular-shaped recess 13 having a shaft 14 centered therein. The shaft 14 supports a constant force spring 15, such as a flat spiral. spring or torsion spring. A cable arm support member 16 is supported by the shaft 14 within the circular-shaped recess 13 above the constant force spring 1.5. The cable arm support member 16 supports cable support arm 10 as illustrated in FIG. 1. The cable arm support member 16 and a second finger support member 17 are the support carrier for the cartridge 19. The second finger support member 17 supports the second finger 7 which is capable of being actuated by engaging the cable support arm 10 when the cartridge 19 is inserted, as illustrated in FIG. 1.
The cable arm support member 16 and the second finger support member 17 are each rotational around the shaft 14, thereby allowing each to rotate and actuate the second finger 7 when the cable support arm 10 is actuated.
CA031/9/61101401.13 One or more engagement means 18, such as a mirrored profile, channels, slots, ridges, tabs and so forth are located on an interior surface of the cable arm support member 16 and the second finger support member 17.
With reference to FIG. 3, a top perspective view of a cartridge 19 of a split hook .. prosthetic terminal device 1. of the present invention is illustrated. The cartridge 19 comprises a first lever 20 and second lever 21, each attached to a II-shaped locking mechanism 22 that is slidably attached to a curved friction bar 23. The U-shaped locking mechanism 22 consists of a friction pad 24 and a semi-circular locking cam 25.
The semi-.
circular locking cam 25 pivots on pin 26, and engages curved friction bar to actuate locking the device in a closed position. The components of the cartridge 19 assist in maintaining the split hook 8 in a locked and grasping position after the cable support arm 10 has been actuated to close the split hook 8.
One or more engagement means 1.8, such as a mirrored profile, channels, slots, ridges, tabs and so forth, are located on an exterior surface of the first lever 20 and second is lever 21. to engage the cable arm support member 16 and the second finger support member 17.
With reference to FIG. 4, a top perspective view of a cartridge 19 inserted into the cable arm support member 1.6 and second finger support member 17 of a split hook prosthetic terminal device 1 of the present invention is illustrated. One or more engagement means 18, such as a mirrored profile, channels, slots, ridges, tabs and so forth are located on an exterior surface of the first lever 20 and an exterior surface of the second lever 21 to engage one or more engagement means 1.8 located on interior surfaces of the cable arm CA031/9/61101401.13 support member 16 and the second finger support member 17. The cartridge 1.9 and components thereof work to maintain said cable arm support member 16 and said second finger support member 17 in temporarily locked positions to grasp objects.
it is k) be understood that while a preferred embodiment a the invention is illustrated, it is not to be limited to .the specific form or arrangement of parts herein described and shown. It will be apparent to those skilled in the art that various changes may be made without departing from the scope of the invention and the invention is not to be considered limited to what is shown and described in. the specification and drawings.
1.0
Claims
CA031/9/61101401.13 PCT/US2021/045961Having thus described my invention, I claim:
I.. A split hook prosthetic terminal device comprising:
a housing having a base and a cover;
a stud for mounting the split hook prosthetic terminal device extending from a proximal end of said housing;
a first finger and a second finger extending from a distal end of said housing and forming a split hook;
a cable support arm extending from said housing;
o an internal portion of said housing forming a circular-shaped recess having a shaft centered therein;
said shaft and circular-shaped recess supporting a constant force spring below a cable arm support member and a second finger support member;
a cartridge that is insertable into said cable arra support member and second I S finger support member; and said cartridge .having at least two components that work to maintain said cab.le arm support member and said second finger support member in temporarily locked positions.
20 2. The split hook prosthetic terminal device of claim 1 further wherein:
said cartridge comprim a. first lever and second lever each attached to a tj-shaped mechanism that is slidably attached to a curved friction bar.
CA031/9/61101401.13 3. The split hook prosthetic terminal device of claim I further comprising:
at least one engagement means located on an interior surface of the first finger support member;
at least one engagement means located on an interior surface of the smond.
finger support member; and at least one engagement means located on an oderior surtke of the cartridge that engages the cable ann support member and the second linger support member.
4. The split hook prosthetic terminal device of claim 2 further comprising:
at least one engagerrient means located on an interior surfitce of the cable arm support: member;
at least one mgagement means located on an interior surface of the second finger support mentber; and at least one engagement means located on an exterior surface of the cartridge that engages the cable arm support member and the second finger support member.
5. 'The split hook.prosthetic terminal device of claim 1 further wherein:
said cable ann support member is centered between a top edge of the cover and a bottom edge of the base.
CA031/9161101401.13 6. A split hook prosthetic terminal device comprising:
a housing having a base and a cover;
a stud for mounting the split hook. prosthetic terminal device extending from a proximal end of said housing;
a first finger and a second finger extending from a distal end of said housing and forming a split hook;
a cable support arm extending from said housing;
an internal portion of said housing forming a circular-shaped recess .having a to shaft centered therein;
said shaft and circular-shaped recess supporting a constant force spring below a cable arm support member and a second finger support member;
a cadridge that is insertable into said circular-shaped recess;
said cartridge .having at least two components that work to maintain said cable arm support member and said second finger support merriber in temporarily locked positions; and said cartridge comprises a first lever and second lever each attaChed to a shaped locking mechanism that is slidably attached to a curved friction bar.
=
7. The split hook. prosthetic terminal device of claim 6 flutter comprising:
at least one engagement means located on an interior surface of the cable arm support member;
CA031/9/61101401.13 at least one engagement means located on an interior =thee of the second finger support. member; and at least one etigagement means located on an exterior surface of the carttidge that engages the cable arm support mmber and the second finger support member, S. The split hook prosthetic terminal device of claim 6 further wherein:
said cable arm support member is centered between a top edge of the cover and.
a bottom edge of the base, 9. A split hook prosthetic. terminal device comprising:
a housing having a base and a cover;
a stud for 'limiting the split hook prosthetic terminal device extending from a proximal end of said housing;
a first finger and a second finger extending from a distal end of said housing and forming a split hook;
a cable support arm member extending from said housing;
an internal portion of said housing finning a circular-shaped mcess having a shalt centered therein;
said sbaft and circular-shaped recess supporting a constant force spring below a cable arm support member and a second finger support member;
a cartridge that -is insertable into said circular-shaped recess;
CA031/9/61101401.13 said cartridge having at least two components that work to maintain said cable arm support member and said second finger support member in temporarily locked positions;
said cartridge comprises a. first lever and second lever each attached to a shaped locking me.thanism that is slidably attached to a curved friction bar;
at least one engagement means located on an interior surface of the ca.ble arm support member;
at least one engagement means located on an interior surface of the second finger support member; and lO at least one engagement means located on an exterior surface of the.
cartrklge that engages the cable arm support member and the second finger support mernber.
O. The split hook prosthetic terminal device of claim 9 further svherein;
said cable arm support member is eentered between a top edge of the cover and a bottom edge of the base.
=
I.. A split hook prosthetic terminal device comprising:
a housing having a base and a cover;
a stud for mounting the split hook prosthetic terminal device extending from a proximal end of said housing;
a first finger and a second finger extending from a distal end of said housing and forming a split hook;
a cable support arm extending from said housing;
o an internal portion of said housing forming a circular-shaped recess having a shaft centered therein;
said shaft and circular-shaped recess supporting a constant force spring below a cable arm support member and a second finger support member;
a cartridge that is insertable into said cable arra support member and second I S finger support member; and said cartridge .having at least two components that work to maintain said cab.le arm support member and said second finger support member in temporarily locked positions.
20 2. The split hook prosthetic terminal device of claim 1 further wherein:
said cartridge comprim a. first lever and second lever each attached to a tj-shaped mechanism that is slidably attached to a curved friction bar.
CA031/9/61101401.13 3. The split hook prosthetic terminal device of claim I further comprising:
at least one engagement means located on an interior surface of the first finger support member;
at least one engagement means located on an interior surface of the smond.
finger support member; and at least one engagement means located on an oderior surtke of the cartridge that engages the cable ann support member and the second linger support member.
4. The split hook prosthetic terminal device of claim 2 further comprising:
at least one engagerrient means located on an interior surfitce of the cable arm support: member;
at least one mgagement means located on an interior surface of the second finger support mentber; and at least one engagement means located on an exterior surface of the cartridge that engages the cable arm support member and the second finger support member.
5. 'The split hook.prosthetic terminal device of claim 1 further wherein:
said cable ann support member is centered between a top edge of the cover and a bottom edge of the base.
CA031/9161101401.13 6. A split hook prosthetic terminal device comprising:
a housing having a base and a cover;
a stud for mounting the split hook. prosthetic terminal device extending from a proximal end of said housing;
a first finger and a second finger extending from a distal end of said housing and forming a split hook;
a cable support arm extending from said housing;
an internal portion of said housing forming a circular-shaped recess .having a to shaft centered therein;
said shaft and circular-shaped recess supporting a constant force spring below a cable arm support member and a second finger support member;
a cadridge that is insertable into said circular-shaped recess;
said cartridge .having at least two components that work to maintain said cable arm support member and said second finger support merriber in temporarily locked positions; and said cartridge comprises a first lever and second lever each attaChed to a shaped locking mechanism that is slidably attached to a curved friction bar.
=
7. The split hook. prosthetic terminal device of claim 6 flutter comprising:
at least one engagement means located on an interior surface of the cable arm support member;
CA031/9/61101401.13 at least one engagement means located on an interior =thee of the second finger support. member; and at least one etigagement means located on an exterior surface of the carttidge that engages the cable arm support mmber and the second finger support member, S. The split hook prosthetic terminal device of claim 6 further wherein:
said cable arm support member is centered between a top edge of the cover and.
a bottom edge of the base, 9. A split hook prosthetic. terminal device comprising:
a housing having a base and a cover;
a stud for 'limiting the split hook prosthetic terminal device extending from a proximal end of said housing;
a first finger and a second finger extending from a distal end of said housing and forming a split hook;
a cable support arm member extending from said housing;
an internal portion of said housing finning a circular-shaped mcess having a shalt centered therein;
said sbaft and circular-shaped recess supporting a constant force spring below a cable arm support member and a second finger support member;
a cartridge that -is insertable into said circular-shaped recess;
CA031/9/61101401.13 said cartridge having at least two components that work to maintain said cable arm support member and said second finger support member in temporarily locked positions;
said cartridge comprises a. first lever and second lever each attached to a shaped locking me.thanism that is slidably attached to a curved friction bar;
at least one engagement means located on an interior surface of the ca.ble arm support member;
at least one engagement means located on an interior surface of the second finger support member; and lO at least one engagement means located on an exterior surface of the.
cartrklge that engages the cable arm support member and the second finger support mernber.
O. The split hook prosthetic terminal device of claim 9 further svherein;
said cable arm support member is eentered between a top edge of the cover and a bottom edge of the base.
=
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2021/045961 WO2023018421A1 (en) | 2021-08-13 | 2021-08-13 | Prosthetic having interchangeable internal cartridges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3229262A1 true CA3229262A1 (en) | 2023-02-16 |
Family
ID=85200866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3229262A Pending CA3229262A1 (en) | 2021-08-13 | 2021-08-13 | Prosthetic having interchangeable internal cartridges |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA3229262A1 (en) |
| WO (1) | WO2023018421A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2528322A (en) * | 1947-12-08 | 1950-10-31 | Annar F Syverud | Artificial hand |
| DE102007035965B4 (en) * | 2007-07-30 | 2016-08-11 | Otto Bock Healthcare Products Gmbh | Prosthetic gripping unit |
| US9861499B2 (en) * | 2012-09-18 | 2018-01-09 | Rehabilitation Institute Of Chicago | Gripping device with switchable opening modes |
| US9474631B2 (en) * | 2013-07-22 | 2016-10-25 | Invisible Hand Enterprises, Llc | Gripping device with switchable prehension modes |
| DE102015116133B3 (en) * | 2015-09-24 | 2017-01-19 | Otto Bock Healthcare Products Gmbh | prosthetic device |
| US10292839B2 (en) * | 2016-01-21 | 2019-05-21 | Invisible Hand Enterprises, Llc | Gripping device with switchable prehension modes |
-
2021
- 2021-08-13 WO PCT/US2021/045961 patent/WO2023018421A1/en active Application Filing
- 2021-08-13 CA CA3229262A patent/CA3229262A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023018421A1 (en) | 2023-02-16 |
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