Universal handle for medical instruments

• US 5,993,470 A
• Filed: 12/23/1994
• Issued: 11/30/1999
• Est. Priority Date: 09/15/1992
• Status: Expired due to Fees

• Current Assignee: Inbae Yoon
• Original Assignee: Inbae Yoon
• Inventors: Yoon, InBae
• Primary Examiner(s): Tucker, Guy V.
• Application Number:
  US08/362,223
• Time in Patent Office: 1,803 Days
• Field of Search: 128/751, 128/752, 128/753, 128/754, 604/95, 604/158, 604/162, 604/163, 604/164, 604/165, 604/170, 604/272, 604/274, 604/280, 604/169, 606/167, 606/171, 606/185, 606/1
• US Class Current: 606/185
• CPC Class Codes: A61B 17/3474 Insufflating needles, e.g. Veress needles
• CPC Class Codes: A61B 17/3496 Protecting sleeves or inner probes; Retractable tips for protecting body piercing guide needles A61M25/0612
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable
• CPC Class Codes: A61M 25/0612 Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
• CPC Class Codes: A61M 5/3232 Semi-automatic needle retraction, i.e. in which triggering of the needle retraction requires a deliberate action by the user, e.g. manual release of spring-biased retraction means

Abstract

A universal handle for medical instruments includes a first member movably disposed within a housing for detachably mounting a first medical instrument, a bias member for moving the first member toward a retracted or extended position near one end of the housing, a locking mechanism for engaging the first member in the retracted or extended position to prevent the bias member from moving the first member into the retracted or extended position, and a releasing mechanism including an operating member movable in response to a reduction in force acting on a component of the handle for triggering release of the locking mechanism to permit the bias member to move the first member to the retracted or extended position. A second member for detachably mounting a second medical instrument can be held stationary relative to the housing or can be movably disposed within the housing between extended and retracted positions. Opposite ends of the universal handle can be configured to provide at least one of a retracting and a protruding function as desired.

Claims

1. A universal handle for medical instruments comprising

a housing having a proximal end and a distal end;

a first mounting member disposed within said housing for detachably mounting a first medical instrument, said first mounting member being movable with the first medical instrument relative to said housing between an extended position proximate said distal end of said housing and a retracted position proximate said proximal end of said housing;

retracting means for moving said first mounting member proximally relative to said housing with the first medical instrument from said extended position to said retracted position;

locking means for engaging said first mounting member in said extended position to prevent said retracting means from moving said first mounting member into said retracted position; and

releasing means including an operating member movable distally in response to a reduction in force acting on a component of said handle for triggering release of said locking means to permit said retracting means to move said first mounting member proximally relative to said housing with the first medical instrument from said extended position to said retracted position.

2. A universal handle as recited in claim 1 and further comprising means for detachably mounting a second medical instrument on said housing.

3. A universal handle as recited in claim 2 wherein said means for detachably mounting a second medical instrument includes a pair of opposed jaws extending from a distal end of said housing.

4. A universal handle as recited in claim 3 wherein said jaws are pivotally attached to said housing and biased toward one another.

5. A universal handle as recited in claim 4 wherein said opposed jaws define a bore in axial alignment with an opening formed at said distal end of said housing to permit passage of the first medical instrument while preventing proximal movement of the second medical instrument.

6. A universal handle as recited in claim 5 wherein said opposed jaws are configured to engage a proximal end of the second medical instrument.

7. A universal handle as recited in claim 6 wherein said opposed jaws define an annular recess therebetween for receiving the proximal end of the second medical instrument.

8. A universal handle as recited in claim 2 wherein said first mounting member is configured to mount a penetrating member and said means for detachably mounting a second medical instrument is configured to mount a cannula.

9. A universal handle as recited in claim 1 wherein said first mounting member includes a distal end configured to mate with a proximal end of the first medical instrument.

10. A universal handle as recited in claim 9 wherein said distal end of said first mounting member includes a nub configured to be frictionally received within a recess formed in the proximal end of the first medical instrument.

11. A universal handle as recited in claim 9 wherein said distal end of said first mounting member is threaded to engage threads formed at the proximal end of the first medical instrument.

12. A universal handle as recited in claim 9 wherein said distal end of said first mounting member includes detents for engaging mating detent structure at the proximal end of the first medical instrument.

13. A universal handle as recited in claim 1 wherein said locking means permits a predetermined amount of proximal movement of said first mounting member away from said extended position in response to a proximal force acting on a distal end of said first mounting member and further comprising bias means for biasing said first mounting member distally toward said extended position.

14. A universal handle as recited in claim 13 and further comprising a rail member disposed within said housing and having forward and rearward walls, said rail member being movable within said housing between an extended position proximate said distal end of said housing and a retracted position proximate said proximal end of said housing, wherein said first mounting member includes a cylindrical body extending distally through an opening in said forward wall of said rail member and a flange disposed at a proximal end of said cylindrical body between said forward and rearward rail member walls and wherein said locking means engages said rail member to lock said first mounting member.

15. A universal handle as recited in claim 14 wherein said bias means includes a spring biasing said flange distally toward said forward wall of said rail member.

16. A universal handle as recited in claim 15 and further comprising a knob coupled with said first mounting member for manually moving said first mounting member distally from said retracted position to said extended position.

17. A universal handle as recited in claim 16 wherein said operating member is formed by said flange.

18. A universal handle for medical instruments comprising

a housing having proximal and distal ends;

a first mounting member disposed within said housing for detachably mounting a first medical instrument, said first mounting member being movable with the first medical instrument relative to said housing between a retracted position proximate said proximal end of said housing and an extended protruding position proximate said distal end of said housing;

extending means for moving said first mounting member distally relative to said housing with the first medical instrument from said retracted position to said extended protruding position;

locking means for engaging said first mounting member in said retracted position to prevent said extending means from moving said first mounting member into said extended position; and

releasing means including an operating member carried by a component of said handle for triggering release of said locking means in response to a reduction in force acting on said component so as to permit said extending means to move said first mounting member distally relative to said housing with the first medical instrument from said retracted position to said extended position.

19. A universal handle as recited in claim 18 and further comprising a second mounting member disposed within said housing for detachably mounting a second medical instrument, said second mounting member being movable with the second medical instrument between an extended rest position proximate said distal end of said housing and a retracted position proximate said proximal end of said housing, and bias means for distally biasing said second mounting member toward said rest position, wherein said operating member is carried by said second mounting member.

20. A universal handle as recited in claim 19 wherein a distal end of said first mounting member includes a receptacle configured to receive a proximal end of the first medical instrument.

21. A universal handle as recited in claim 20 and further comprising a pair of opposed jaws extending from a distal end of said housing, wherein said receptacle is disposed for sliding movement between said opposed jaws.

22. A universal handle as recited in claim 21 wherein said jaws are pivotally attached to said housing and biased toward one another to define a passage for guiding said receptacle and for preventing the first medical instrument from becoming dislodged from said receptacle.

23. A universal handle as recited in claim 19 wherein said locking means permits a predetermined amount of proximal movement of said second mounting member away from said extended rest position in response to a proximal force acting on a distal end of said second mounting member and further comprising bias means for biasing said second mounting member distally toward said extended position.

24. A universal handle as recited in claim 19 wherein said first mounting member includes a rail member having forward and rearward walls disposed within said housing and a cylindrical portion extending through an opening at said distal end of said housing to form a receptacle for receiving the proximal end of the first medical instrument, wherein said second mounting member includes a cylindrical body extending distally through an opening in said forward wall of said rail member and a flange disposed at a proximal end of said cylindrical body between said forward and rearward rail member walls and further comprising a stop limiting distal movement of said second mounting member relative to said housing.

25. A universal handle as recited in claim 24 wherein said bias means includes a spring biasing said flange distally toward said forward wall of said rail member.

26. A universal handle as recited in claim 25 and further comprising a knob coupled with said first mounting member for manually moving said first mounting member proximally from said extended position to said retracted position.

27. A universal handle as recited in claim 18 wherein a distal end of said first mounting member is threaded.

28. A universal handle as recited in claim 18 wherein a distal end of said first mounting member includes detents.

29. A universal handle as recited in claim 18 wherein said second mounting member includes a distal end configured to mate with a proximal end of the second medical instrument.

30. A universal handle as recited in claim 29 wherein said distal end of said second mounting member includes a nub.

31. A universal handle as recited in claim 29 wherein said distal end of said second mounting member is threaded.

32. A universal handle as recited in claim 29 wherein said distal end of said second mounting member includes detents.

33. A universal handle for medical instruments comprising

a housing having first and second opposed ends;

mounting means movably disposed within said housing and having first and second opposed ends, said first end of said mounting means having a configuration to mount a first medical instrument from said first end of said housing, said second end of said mounting means having a configuration to mount a second medical instrument from said second end of said housing, said mounting means being movable relative to said housing between a first position proximate said first end of said housing and a second position proximate said second end of said housing;

bias means for biasing said mounting means toward said first end of said housing;

locking means for locking said mounting means in said second position; and

releasing means including an operating member carried by a component of said handle for triggering release of said locking means in response to a reduction in force acting on said component so as to permit said bias means to move said mounting means toward said first end of said housing.

34. A universal handle as recited in claim 33 and further comprising a pair of opposed jaws extending from said second end of said housing.

35. A universal handle as recited in claim 34 wherein said jaws are pivotally attached to said housing and biased toward one another.

36. A universal handle as recited in claim 34 wherein said opposed jaws are configured to engage a proximal end of a fourth medical instrument from said second end of said housing.

37. A universal handle as recited in claim 33 wherein said first end of said mounting means is threaded.

38. A universal handle as recited in claim 33 wherein said first end of said mounting means includes detents.

39. A universal handle as recited in claim 33 wherein said first end of said mounting means includes a nub.

40. A universal handle as recited in claim 33 wherein said second end of said mounting means is configured to mate with a proximal end of the second medical instrument.

41. A universal handle as recited in claim 40 wherein said second end of said mounting means includes a nub.

42. A universal handle as recited in claim 40 wherein said second end of said mounting means is threaded.

43. A universal handle as recited in claim 40 wherein said second end of said mounting means includes detents.

44. A universal handle as recited in claim 33 and further comprising removable plugs for sealingly engaging openings in said first and second ends of said housing to cover said first and second ends of said mounting means.

45. A universal handle as recited in claim 33 and further comprising an adapter having a proximal end configured to detachably mount at least one of said first and second ends of said mounting means and a distal end configured to detachably mount the proximal end of a medical instrument.

46. A universal handle as recited in claim 45 wherein said adapter is at least partly solid to form a barrier preventing fluid flow into said housing when mounted on one of said first and second ends of said mounting means.

47. A universal handle for medical instruments as recited in claim 33 wherein said mounting means includes

a first mounting member disposed within said housing and having first and second opposed ends, said first end of said first mounting member having a configuration for mounting the first medical instrument from said first end of said housing, said first mounting member being movable between a rest position proximate said first end of said housing and a retracted position proximate said second end of said housing;

and

a second mounting member disposed within said housing and having first and second opposed ends, said second end of said second mounting member having a configuration for mounting the second medical instrument from said second end of said housing, said second mounting member being movable between an extended position proximate said second end of said housing and a retracted position proximate said first end of said housing.

48. A universal handle as recited in claim 47 wherein said first and second mounting members slidingly engage one another.

49. A universal handle as recited in claim 47 and further comprising a rail member movably disposed within said housing, said rail member mounting said first and second mounting members.

50. A universal handle as recited in claim 49 wherein said rail member has first and second walls and said first and second mounting members each include a flange disposed between said first and second walls of said rail member.

51. A universal handle as recited in claim 50 and further comprising bias means for urging said flanges of said first and second mounting members away from one another and toward opposite ends of said rail member.

52. A universal handle as recited in claim 51 wherein said locking means engages said rail member in a loaded position where said first mounting member is in said retracted position and said second mounting member is in said extended position.

53. A universal handle as recited in claim 52 and further comprising handle means coupled with said rail member for manually moving said rail member into said loaded position.

54. A universal handle as recited in claim 53 and further comprising a stop limiting movement of said first mounting member toward said first end of said housing and wherein said rail member has a first end configured for mounting a third medical instrument from said first end of said housing.

55. A universal handle as recited in claim 54 wherein said first and second mounting members each carry an operating member for engaging said releasing means to release said locking means to allow said bias means to move said first and second mounting members toward said first end of said housing.

56. A universal handle as recited in claim 54 wherein said first end of said rail member includes a receptacle configured to receive a proximal end of the third medical instrument.

57. A universal handle as recited in claim 56 and further comprising opposed jaws extending from said first end of said housing, wherein said receptacle is disposed for sliding movement between said opposed jaws.

58. A universal handle as recited in claim 57 wherein said opposed jaws are pivotally attached to said housing and biased toward one another to define a bore for guiding said receptacle and for preventing the first medical instrument from becoming dislodged from said receptacle.

59. A universal handle as recited in claim 54 wherein said first and second mounting members are configured to mount penetrating members and said first end of said rail member is configured to mount a cannula.