NZ760845B2 - Lamb castration clamp and apparatus - Google Patents
Lamb castration clamp and apparatus Download PDFInfo
- Publication number
- NZ760845B2 NZ760845B2 NZ760845A NZ76084518A NZ760845B2 NZ 760845 B2 NZ760845 B2 NZ 760845B2 NZ 760845 A NZ760845 A NZ 760845A NZ 76084518 A NZ76084518 A NZ 76084518A NZ 760845 B2 NZ760845 B2 NZ 760845B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- jaws
- lamb
- clamp
- inner contact
- castration
- Prior art date
Links
- 235000019687 Lamb Nutrition 0.000 title claims abstract 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract 7
- 210000004706 scrotum Anatomy 0.000 claims abstract 7
- 210000005036 nerve Anatomy 0.000 claims abstract 4
- 230000017531 blood circulation Effects 0.000 claims abstract 2
- 230000000694 effects Effects 0.000 claims abstract 2
- 210000000929 nociceptor Anatomy 0.000 claims abstract 2
- 108091008700 nociceptors Proteins 0.000 claims abstract 2
- 210000004267 spermatic cord Anatomy 0.000 claims abstract 2
- 238000005755 formation reaction Methods 0.000 claims 6
- 230000000295 complement effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
- A61B17/1227—Spring clips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/128—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for applying or removing clamps or clips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
- A61D1/06—Castrating appliances
Abstract
lamb castration clamp (100, 200, 300) comprises a pair of jaws (102, 104, 202, 204). Each jaw comprises an inner contact surface (110, 310) and an outer engagement formation (112, 212) configured for engagement by clamping pliers for compressive force to be applied to the jaws by the clamping pliers. The inner contact surfaces have a length of 50-70 mm and a width of 0.2-2 mm and are configured to engage each other along their entire length. The clamp includes a hinge apparatus (106) connecting proximal ends of the jaws such that the opposing contact surfaces are in alignment and the jaws are movable by a compressive force from an open position, in which the jaws are spaced apart to receive the neck of the scrotum of a lamb, to a closed position, in which the jaws are close together so that the opposing aligned contact surfaces crushingly clamp the spermatic cords and nerves in the neck of the scrotum so as to stop blood flow to the scrotum and block conduction of nociceptor activity by the nerves. The clamp also includes a retaining element (108) configured to retain the jaws in the closed position.
Claims (8)
1. A lamb castration clamp (100, 200, 300) comprising: a pair of jaws (102, 104, 202, 204, 302, 304), each jaw comprising an inner contact surface (110, 310) and an outer engagement formation (112, 212) configured for engagement by clamping pliers for compressive force to be applied to the jaws by the clamping pliers, wherein each of the inner contact surfaces has a length of 50-70 mm and a width of 0.2-2 mm and are configured to engage each other along their entire length; hinge apparatus (106) connecting proximal ends of the jaws such that the opposing inner contact surfaces are in alignment and the jaws are movable by a compressive force from an open position, in which the jaws are spaced apart to receive the neck of the scrotum of a lamb, to a closed position, in which the jaws are close together so that the opposing aligned inner contact surfaces crushingly clamp the spermatic cords and nerves in the neck of the scrotum so as to stop blood flow to the scrotum and block conduction of nociceptor activity by the nerves; and a retaining element (108) configured to retain the jaws in the closed position.
2. A lamb castration clamp as claimed in claim 1, wherein each of the inner contact surfaces (110) have a width of 0.2-0.5 mm.
3. A lamb castration clamp as claimed in claim 1, wherein each of the inner contact surfaces (110) have a width of 0.5-2mm and the engagement formations define engagement slots (114, 214) for receiving complementary engagement formations provided at the distal ends of the jaws of clamping pliers.
4. A lamb castration clamp as claimed in any of claims 1 to 3, wherein the hinge apparatus(106) comprises a hinge barrel mounted in hinge socket and an elastically deformable retaining element configured to generally retain the hinge barrel within the hinge socket, while allowing movement of the hinge barrel within the hinge socket.
5. A lamb castration clamp as claimed in any preceding claim , wherein the retaining element and/or the elastically deformable retaining element comprises at least one elastically deformable ring (108).
6. A lamb castration clamp as claimed in any preceding claim, further comprising a pair of guide arms (120) provided on one jaw such that the inner contact surface of said jaw is located generally between the guide arms, the guide arms are configured to align the inner contact surfaces of the jaws in the closed position and to help gather and retain the tissues of the neck of the scrotum as the jaws are closed.
7. A lamb castration clamp as claimed in any preceding claim, wherein at least the jaws are formed from a biodegradable material.
8. Lamb castration apparatus comprising: double-lever, over-centre clamping pliers having an over-centre toggle, the clamping pliers comprising plier jaws and operating handles, the plier jaws being movable between an open position and a closed position by the operating handles; and a lamb castration clamp as claimed in any one of claims 1 to 7, wherein the plier jaws comprise engagement formations at their distal ends, the engagement formations configured to engage the engagement formations of the lamb castration clamp such that the jaws of the lamb castration clamp are moveable from the open position to the closed position by a compressive force applied by the plier jaws moving from the open position to the closed position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1712080.9A GB201712080D0 (en) | 2017-07-27 | 2017-07-27 | Lamb castration apparatus |
| PCT/GB2018/052110 WO2019021006A1 (en) | 2017-07-27 | 2018-07-26 | Lamb castration clamp and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ760845A NZ760845A (en) | 2024-08-30 |
| NZ760845B2 true NZ760845B2 (en) | 2024-12-03 |
Family
ID=
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