Surgical saw blades and thermal management systems

Abstract

To provide improved surgical saw blades and surgical saw systems that promote improved surgical precision and surgical efficiency. [Solution] The surgical saw blade comprises a cutting edge, a proximal portion, and a body portion. The cutting edge has teeth and is substantially formed from a first material having a first thermal conductivity. The proximal portion comprises a blade hub. The body portion connects the cutting edge and the proximal portion and comprises a heat transfer core formed from a second material having a second thermal conductivity at least twice that of the first thermal conductivity. The core has at least two longitudinally extending core surfaces. The body portion comprises at least two longitudinally extending side members positioned on the longitudinally extending core surfaces.

Claims

1. Surgical saw blade (24, 24', 24''), A cutting edge (42, 42') having multiple teeth (44, 44'), and substantially the entire A cutting edge (42, 42') is formed from a first material having a first thermal conductivity, A proximal portion (34, 34', 34'') having a blade hub (30, 30'), Displaced between the cutting edge (42, 42') and the proximal portion (34, 34', 34'') The cutting edges (42, 42') and the proximal portions (34, 34', 34'') are connected to each other. The main body part (46, 46', 46'') It is formed from a second material having a second thermal conductivity at least twice that of the first thermal conductivity. A heat transfer core (56, 56', 56A', 56B', 56''), wherein the core (5 At least two mutual The first core surface (57, 57A', 57B', 57'') extends longitudinally on the opposite side. A heat transfer core (56, 56', 56A', 56B', 56'') having ) On the first core surface (57, 57A', 57B', 57'') that extends in the longitudinal direction, At least two first side members, each positioned to extend longitudinally on opposite sides. (58, 58') and, The main body section (46, 46', 46'') includes, A surgical saw blade (24, 24', 24'') equipped with [specific features].

2. The cutting edge (42, 42') is formed of steel and has a first side portion extending in the longitudinal direction. The material (58, 58') is also formed from steel, the surgical saw blade (2) according to claim 1. ４，２４’，２４’’）。

3. The cutting edge (42, 42') is formed from steel, and the proximal portion (34, 34', 34' ') a surgical saw blade according to claim 1, wherein substantially the entire blade is formed from steel. （２４，２４’，２４’’）。

4. The cutting edge (42, 42') is positioned at the distal end of the blade (24, 24', 24''). The surgical device according to claim 1, wherein the cutting edge (42, 42') is made of steel. Saw blades (24, 24', 24'').

5. The cutting edge (42, 42') is positioned at the distal end of the blade (24, 24', 24''). The saw blade (24, 24', 24'') is positioned, and the blade hub (30, 30 The claim is substantially symmetrical with respect to the long axis extending from the tooth (44, 44') to the tooth (44, 44'). The surgical saw blades (24, 24', 24'') described in item 1.

6. In order to provide the aforementioned side members (58, 58', 60), the steel sheet is the first core surface The outer part of claim 1, which is arranged to cover (57, 57A', 57B', 57'') Saw blades for general use (24, 24', 24'').

7. The cutting edge (42) is formed of steel and has two second side members (60) on opposite sides. The second side member (60) is made of steel and is in contact with the first side member (58). Continuing, two second sides on opposite sides extending across the thickness of the heat transfer core (56) The surgical saw blade (24) according to claim 1 extends along each of the core surfaces (59). ，２４’，２４’’）。

8. The cutting edge (42, 42') is the blade of the saw blade (24, 24', 24'') Located at the distal end opposite to Dohab (30,30'), The main body portion (46, 46', 46'') is the saw blade (24, 24', 24'' Having a length exceeding half the length of ) The proximal portion (34, 34', 34''), the cutting edge (42, 42'), and the main body portion The surgical saw blade (24, 24', 24'') comprises (46, 46', 46'') ) is substantially planar and has substantially a constant thickness, The surgical saw blade (24, 24', 24'') according to claim 1.

9. The heat transfer cores (56, 56', 56A', 56B', 56'') are substantially made of copper. A surgical saw blade (24, 24', 24) according to any one of claims 1 to 8 is configured as follows: ’’）。

10. The heat transfer cores (56, 56', 56A', 56B', 56'') are substantially made of aluminum. A surgical saw blade (24, 2) made of nium, according to any one of claims 1 to 8. ４’，２４’’）。

11. Surgical saw blade (24, 24', 24''), A cutting edge (42, 42') having multiple teeth (44, 44'), and substantially the entire A cutting edge (42, 42') is formed from a first material having a first thermal conductivity, A proximal portion (34, 34', 34'') having a blade hub (30, 30'), Displaced between the cutting edge (42, 42') and the proximal portion (34, 34', 34'') The cutting edges (42, 42') and the proximal portions (34, 34', 34'') are connected to each other. The main body portion (46, 46', 46'') having at least two of the first thermal conductivity A heat transfer core (56, 56', 56) formed from a second material having twice the second thermal conductivity A', 56B', 56'') and the core (56, 56', 56A', 56B', Extending across the width of 56'') at least two longitudinal sides on opposite sides A heat transfer core (56, 56) having a first core surface (57, 57A', 57B', 57'' ', 56A', 56B', 56'') and the first core surface (57, extending in the longitudinal direction) At least two opposite each other, positioned on top of 57A', 57B', 57'') The main body portion (46) comprises a first side member (58, 58') extending in the longitudinal direction on the side. ,46',46'') and, A surgical saw blade (24, 24', 24'') is provided, The aforementioned blade hub (30, 30') is designed to receive the saw handpiece (22) A blade mounting fixture (28) connected to the heat sink (32, 32') Blade mounting bracket (28), A surgical saw blade thermal management system (70) is provided.

12. The heat sink (32) is a passive heat sink (32) as described in claim 11. A thermal management system for surgical saw blades (70).

13. The heat sink (32') is an active heat sink (32'), according to claim 11. The surgical saw blade thermal management system described (70).

14. The heat sink (32') is an electrically operable heat sink (32'). The surgical saw blade thermal management system (70) according to claim 11.

15. The heat transfer cores (56, 56', 56A', 56B', 56'') are made from copper, and are substantially made from copper. A surgical saw blade thermal management system according to any one of claims 11-14 is configured. （７０）。

16. A method for manufacturing a surgical saw blade (24, 24', 24''), A step of forming a layer of a blank sheet assembly (96), wherein the layer is A substantially planar first steel sheet (92) having a first thickness and a first flat area, A second surface area substantially equal to the first surface area and a thickness substantially equal to the first thickness. A second steel sheet (90) having a second thickness and being substantially planar, An intermediate layer (84) is placed between the first sheet (92) and the second sheet (90). , 56, 56', 56A', 56B', 56'') and the cutting edge (42, 42') The steel forming the blade (24, 24', 24'') contains a heat transfer core (56, 5 The heat transfer of the thermal conductivity of the constituent elements of 6', 56A', 56B', 56'' is at least twice that of the thermal conductivity of the constituent elements. Intermediate layer (84, 56, 56', 56A', 5) comprising both a second material having conductivity and a second material having conductivity. 6B', 56'') and, Steps including, The first and second sheets (92, 90) are placed in the intermediate layer (84, 56, 56', 56A' They are fixed to opposite sides of the blank sheet assembly (96) (56B', 56'') The steps of forming, Steps for cutting out multiple saw blanks (98) from the blank sheet assembly (96) Each blank (98) is a heat transfer core (56, 56) formed from a second material. It comprises ', 56A', 56B', 56'' and cutting edges (42, 42') made of steel. Steps, A blade hub (30 The steps of forming ,30', Teeth (44, 44') are formed on the cutting edges (42, 42') of the blade blank (98). The steps to take, Methods that include...

17. The steel of the intermediate layer (84, 56, 56', 56A', 56B', 56'') is the intermediate layer Multiple regularly arranged (84, 56, 56', 56A', 56B', 56'') A third steel sheet (84) having a pocket (86) of a predetermined shape and size placed therein The second material is provided and has substantially the same dimensions and shape as the pocket (86). And multiple heat transfer cores of the same shape (56, 56', 56A', 56B', 56'') are provided. The method involves the heat transfer core (56, 56', 56A', 56B', 56'') The further step includes placing the third sheet (84) into the pocket (86), The method according to claim 16.

18. The steel in the intermediate layer (84, 56, 56', 56A', 56B', 56'') is The method according to claim 16, which also constitutes at least a portion of the proximal end (36, 36', 36''). Law.

19. The first and second steel sheets (92, 90) are the intermediate layer (84, 56, 56', 5 The method according to claim 16, wherein the steel is welded to steel of type 6A', 56B', 56''.

20. The second material is substantially made of copper, as described in any of claims 16-19. method.

21. Electric handpiece (22), A blade attachment (28) connected to the aforementioned electric handpiece (22), The heat sink (32, 32') connected to the blade mounting bracket (28), A surgical saw system (20) equipped with the following.

22. The heat sink (32) is a passive heat sink (32) as described in claim 21. A surgical saw system (20).

23. The heat sink (32) has a plurality of cooling feet extending from the heat sink base (76) A passive heat sink (32) is provided with a (74), and the heat sink base is the The surgical saw system (20) according to claim 21, connected to the blade mounting fixture (28) ）。

24. The heat sink (32') is an active heat sink (32'), according to claim 21. The surgical saw system described (20).

25. The heat sink (32') is an electrically operable heat sink (32'). The surgical saw system (20) according to claim 21.

26. The air is positioned to blow across the heat sink (32, 32'') The surgical saw system (20) according to claim 21, further comprising a fan.

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