Medical device and cooling-fluid/rinsing-fluid hose

Abstract

A medical device, a cooling-fluid/rinsing-fluid hose, and a method for using a medical device. The medical device includes a handpiece with an interior enclosed by a handpiece housing, preferably for receiving a drive. The medical device also has an effector arranged on or coupleable to the handpiece and a supply device for supplying cooling fluid and/or rinsing fluid to the effector. The supply device includes a guide tube or guide cannula that passes through the interior in the handpiece longitudinal direction and is rigidly connected to the handpiece. The guide tube or guide cannula, which opens to the outside in a distal and in a proximal handpiece region, longitudinally guides a preferably single-use cooling-fluid/rinsing-fluid hose that is pushed into the guide tube.

Claims

1. A medical device comprising: a handpiece comprising a handpiece housing that encloses an interior of the handpiece; an effector arranged on or coupleable to the handpiece; and a supply device for cooling and/or rinsing fluid to the effector, the supply device for cooling and/or rinsing fluid comprising a guide tube or guide cannula, at least a portion of which passes through the interior in a longitudinal direction of the handpiece, the guide tube or guide cannula fixedly connected to the handpiece and extending in the interior of the handpiece housing continuously from a proximal handpiece region to a distal handpiece region, the guide tube or guide cannula opening outwardly in the distal handpiece region and in the proximal handpiece region, and the guide tube or guide cannula being configured to longitudinally guide a cooling-fluid/rinsing-fluid hose as the cooling-fluid/rinsing-fluid hose is inserted into the guide tube or guide cannula.

2. The medical device according to claim 1, further comprising the cooling-fluid/rinsing-fluid hose, the cooling-fluid/rinsing-fluid hose having a hose length greater than a length of the guide tube or guide cannula so that the cooling-fluid/rinsing-fluid hose extends completely through said length of the guide tube or guide cannula.

3. The medical device according to claim 2, wherein the guide tube or guide cannula and the cooling-fluid/rinsing-fluid hose are configured such that, in an uncompressed state, the cooling-fluid/rinsing-fluid hose has a larger outer circumference than a diameter of the guide tube or guide cannula.

4. The medical device according to claim 1, wherein the guide tube or guide cannula has one or more outlet openings into the interior.

5. The medical device according to claim 1, wherein the guide tube or guide cannula is arranged in proximity to an inside of the handpiece housing.

6. The medical device according to claim 1, wherein the guide tube or guide cannula, starting from an end portion projecting distally from the handpiece housing obliquely with respect to a longitudinal axis of the handpiece and forming an inlet port that is exclusively obliquely oriented, transitions smoothly into a central region within the interior, which extends parallel to the longitudinal axis of the handpiece, which smoothly opens into an end portion projecting proximally from the handpiece housing obliquely with respect to the longitudinal axis of the handpiece and forming an exit port, the end portion being bent outside the handpiece housing to form an outlet end portion extending parallel to the longitudinal axis of the handpiece in a proximal direction.

7. The medical device according to claim 6, wherein, when the cooling-fluid/rinsing-fluid hose is pulled out of the interior of the handpiece, the inlet port additionally configures a coupling for connecting a cleaning fluid line.

8. The medical device according to claim 6, wherein regions where the central region are connected with the respective end portions are S-shaped.

9. The medical device according to claim 1, wherein the medical device further comprises a flexible cooling-fluid/rinsing-fluid hose for insertion into the guide tube or guide cannula, wherein the flexible cooling-fluid/rinsing-fluid hose has a first end configured to be closed or covered by an end cap, wherein the closed first end or end cap is curved outward to facilitate insertion into the guide tube or guide cannula.

10. The medical device according to claim 9, wherein the cooling-fluid/rinsing-fluid hose is provided for single use.

11. The medical device according to claim 9, wherein the cooling-fluid/rinsing-fluid hose has a plurality of different diameter regions starting from the first end and being arranged in a longitudinal direction of the flexible cooling-fluid/rinsing-fluid hose, the plurality of different diameter regions arranged in series with continuous transitions or with the formation of shoulders.

12. The medical device according to claim 1, wherein the guide tube or guide cannula is perforated.

13. The medical device according to claim 1 wherein the guide tube or guide cannula has: a distal end portion being arranged outside of the handpiece, an intermediate portion being arranged inside of the handpiece, and a proximal end portion, being arranged outside of the handpiece, wherein the distal end portion, the intermediate portion and the proximal end portion are interconnected to form one single piece.

14. The medical device according to claim 1, wherein the guide tube or guide cannula enters the interior of the handpiece housing at the proximal handpiece region, exits the interior of the handpiece housing at the distal handpiece region, and extends continuously from the proximal handpiece region to the distal handpiece region.

15. A method for using a medical device comprising: a handpiece comprising a handpiece housing that encloses an interior of the handpiece; an effector arranged on or coupleable to the handpiece; a supply device for cooling and/or rinsing fluid to the effector; and a guide tube or guide cannula that passes at least partially through the interior in a longitudinal direction of the handpiece, the guide tube or guide cannula fixedly connected to the handpiece, the guide tube or guide cannula opening outwardly in a distal handpiece region and in a proximal handpiece region, the guide tube or guide cannula being configured to longitudinally guide a cooling-fluid/rinsing-fluid hose as the cooling-fluid/rinsing-fluid hose is inserted into the guide tube or guide cannula, wherein the medical device further comprises a flexible cooling-fluid/rinsing-fluid hose for insertion into the guide tube or guide cannula, wherein the flexible cooling-fluid/rinsing-fluid hose has a first end configured to be closed or covered by an end cap, wherein the first end or end cap is curved outward to facilitate insertion into the guide tube or guide cannula, the method comprising the steps of: inserting the closed first end of the flexible cooling-fluid/rinsing-fluid hose from outside the handpiece housing into a tube exit opening outward in the distal handpiece region and pushing the flexible cooling-fluid/rinsing-fluid hose through the guide tube or guide cannula so that the closed first end advances beyond a proximal tube entrance opening in the proximal handpiece region and protrudes from the guide tube or guide cannula; and cutting off the first end after the first end protrudes from the guide tube or guide cannula.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is explained below with the aid of drawings. The following is shown:

(2) FIG. 1a shows a schematic representation of a first variant of a handpiece with fixedly attached rinsing tube;

(3) FIG. 1b shows a schematic representation of a second variant of a handpiece with a fixedly attached rinsing tube;

(4) FIG. 1c shows a schematic representation of a third variant of a handpiece with integrated rinsing tube;

(5) FIG. 2a shows a schematic representation for cleaning a rinsing tube on a handpiece;

(6) FIG. 2b shows a schematic representation for cleaning a rinsing tube in a handpiece;

(7) FIG. 3a shows a first schematic representation of a rinsing hose attachable to a handpiece;

(8) FIG. 3b shows a second schematic representation of a rinsing hose attachable to a handpiece;

(9) FIG. 3c shows a third schematic representation of a rinsing hose attachable to a handpiece;

(10) FIG. 3d shows a fourth schematic representation of a rinsing hose attachable to a handpiece;

(11) FIG. 3e shows a fifth schematic representation of a rinsing hose attachable to a handpiece;

(12) FIG. 4a shows a schematic representation of a handpiece before insertion of a cooling-fluid/rinsing-fluid hose;

(13) FIG. 4b shows a schematic representation of a handpiece with a cooling-fluid/rinsing-fluid hose in use;

(14) FIG. 4c shows a schematic representation of a handpiece with attached cleaning device;

(15) FIG. 5a shows a schematic representation of a cooling-fluid/rinsing-fluid hose;

(16) FIG. 5b shows a schematic representation of a cooling-fluid/rinsing-fluid hose with different inner-diameter regions; and

(17) FIG. 5c shows a schematic representation of a cooling-fluid/rinsing-fluid hose with conical inner-diameter region.

DETAILED DESCRIPTION

(18) The Figures are of a schematic nature only and are intended solely for the purpose of understanding the invention. Identical elements are provided with the same reference signs. The features of the individual embodiments can be interchanged.

(19) In addition, spatially relative terms, such as located below, below, lower, located above, upper, left, on the left, right, on the right, and the like, may be used herein to simply describe the relationship of an element or of a structure to one or more other elements or structures shown in the Figures. The spatially relative terms are intended to include other orientations of the component in use or in operation in addition to the orientation shown in the Figures. The component may be oriented differently (rotated by 90 degrees or in a different orientation), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

(20) The medical device, in particular the handpiece, the method, and the cooling-fluid/rinsing-fluid hose are now described with reference to embodiments.

(21) The principle of the present invention is to provide a sterile supply of cooling and/or rinsing fluid 5, hereinafter referred to as fluid, when using a handpiece 2 during surgery. In this regard, the handpiece 2 has a guide tube or a guide cannula 4, hereinafter referred to as tube, extending from a proximal end/end portion of the handpiece 2 through the handpiece interior to a distal end/end portion of the handpiece 2. The cooling and/or rinsing-fluid hose 1, hereinafter referred to as hose, which is provided for supplying the fluid 5 and is closed at the front, can be pushed through the tube 4. Before the operation, the tip of the hose 1 can be opened by cutting it off, for example with a knife or scissors. At the end of the operation, the hose 1 can be pulled out of the tube 4 again. Optionally, a cleaning process can still be provided after the hose 1 is removed from the tube 4. The hose 1 is discarded after removal from the tube 4.

(22) Further details and aspects are mentioned in connection with the embodiments described above or below.

(23) FIGS. 1a, 1b and 1c show different variants of a handpiece 2 with fluid supply 12 for flushing. In particular, FIG. 1a shows a handpiece 2 with a fixedly attached tube as fluid supply 12. FIG. 1b also shows a handpiece 2 with a fixedly attached tube as fluid supply 12 and attached tool 3. FIG. 1c shows a handpiece 2 with an integrated tube as fluid supply 12 and attached tool 3.

(24) Further details and aspects are mentioned in connection with the embodiments described above or below. The embodiments shown in FIGS. 1a, 1b, and 1c may include one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or embodiments described below with respect to FIGS. 2a to 5c.

(25) FIGS. 2a and 2b show cleaning techniques for cleaning tubes as fluid supply 12 of different handpieces 2. FIG. 2a shows the cleaning of the tube as fluid supply 12 outside of the handpiece 2. FIG. 2b shows the cleaning of the tube as fluid supply 12 inside of the handpiece 2. FIG. 2a corresponds substantially to the arrangement in FIGS. 1a and 1b. FIG. 2b corresponds substantially to the arrangement in FIG. 1c.

(26) Further details and aspects are mentioned in connection with the embodiments described above or below. The embodiments shown in FIGS. 2a and 2b may include one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more embodiments described above (e.g., FIG. 1) or below (e.g., FIGS. 3a to 5c).

(27) FIGS. 3a to 3e show an embodiment in which a hose is attachable to a handpiece 2 as a fluid supply 12 via a fixing device 9. The hose is connectable or connected to the handpiece 2 by clamps as fixing device 9. The clamps may be detachably connected to the handpiece 2. In particular, the clamps may be spaced apart to save material of the fixing device 9. The hose is guided through a channel in the fixing device 9 or is fixedly connected thereto, respectively. FIGS. 3d and 3e show different types of tools with corresponding tool receptacles 8.

(28) Further details and aspects are mentioned in connection with the embodiments described above or below. The embodiments shown in FIGS. 3a to 3e may include one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more embodiments described above (e.g., FIGS. 1 to 2b) or below (e.g., FIGS. 4a to 5c).

(29) FIGS. 4a to 4c, as well as FIGS. 5a to 5c, now illustrate the invention in yet other words. FIG. 4a shows a schematic representation of a handpiece 2 prior to the insertion of a hose 1 into a tube 4 contained in the handpiece 2. The tube 4 extends through an interior within the handpiece 2. Thus, the medical device may be referred to as handpiece 2 per se or as comprising the handpiece 2 and the tube 4. An outlet region A, also referred to as proximal end portion, is shown to the left of the region defined by the tube 4 within the interior of the handpiece, also referred to as central region, and an inlet region E, also referred to as the distal end portion, is shown to the right of the central region. The inlet region E is used for inserting the hose 1 into the tube 4. The tube 4 is configured to be open and has end pieces outside of the handpiece 2. The end pieces may be part of the inlet region E or of the outlet region A, respectively. The hose 4 may be inserted into the tube 4 from a distal end of the handpiece 2. The tube entrance of the inlet region E may protrude from the handpiece 2. The tube 4 in the outlet region A may be curved in an S-shape, such that the tube 4 has the same direction at two separate locations of the outlet region A, i.e. is parallel. The tube 4 may also protrude from the handpiece 2 in the inlet region E outside of the handpiece 2. In this respect, the tube in the inlet region E outside the handpiece 2 may project obliquely away from the handpiece 2.

(30) The part of the tube 4 in the interior of the handpiece may be located within or may be surrounded by a grip section of the handpiece 2 to be grasped by the user during use. Thus, at this very part of the handpiece 2 that is provided for use by the hand, the corresponding portion of the tube 4 can be guided within the handpiece 4, thereby increasing comfort for the user.

(31) FIG. 4b shows a schematic representation of the handpiece 2 with the hose 1 in use. In particular, the hose 1 is completely inserted through the tube 4. A rinsing jet of the fluid 5 is emitted on the left side of the hose 4 in the direction of effect of the tool 3, which is located in the tool receptacle 8. The fluid 5 can be dispensed during an operation. After the operation, the hose 1 can be pulled out of the tube 4. This case is shown in FIG. 4c.

(32) FIG. 4c shows a schematic representation of the handpiece 2 with connected cleaning device 6. The cleaning device may be connected after the operation. For this purpose, the cleaning device 6 may dispense a cleaning fluid into the tube 4 to clean it. The cleaning fluid may contain, for example, alcohol or an oxidizing agent such as hydrogen peroxide for disinfection. For this purpose, the tube 4 has perforations in the interior, for example in the section between inlet region E and outlet region A, the so-called central region. The perforations may be provided for rinsing the interior via cleaning fluid delivered into the tube 4. For example, they may be provided or respectively distributed over a length of the central region d.

(33) In particular, it should be noted here that a tip of the hose 1 can be cut off after the hose 1 has been pushed through the tube 4. This corresponds to the condition before the use in FIG. 4b. This or another cutting step can also be performed after the use in FIG. 4b before the hose 1 is retracted again. This will become clear in the following description of FIGS. 5a to 5c.

(34) Further details and aspects are mentioned in connection with the embodiments described above or below. The embodiments shown in FIGS. 4a to 4c may include one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more embodiments described above (e.g., FIGS. 1 to 3e) or below (e.g., FIGS. 5a to 5c).

(35) FIGS. 5a to 5c show a hose 4, firstly in a manner provided before use, see FIG. 5a, and secondly in two different embodiments, see FIGS. 5b and 5c.

(36) In this respect, FIG. 5a shows a schematic representation of the hose 1. A cutting line T is also shown schematically. Furthermore, a pair of scissors is shown schematically, which is provided as an example of a cutting means S, which may also be a knife or the like with a sharp blade, for cutting the hose 1 along the cutting line T. This allows a tip of the hose 1 to be removed. In order for the hose 1 to be cuttable, an appropriate material may be provided for the hose 4. For example, the hose 4 may be made of plastic such as PVC or silicone. As described above with reference to FIGS. 4a to 4c, the hose 1 may be cut after it has been pushed through the tube 4, for example with the cutting means S along the cutting line. This can be done before the operation and/or after the operation.

(37) Since the hose 1 is closed prior to use, germs and pathogens as well as other contaminants cannot enter the system or the interior of the hose 1. For this purpose, one end or both ends of the hose 1 can be closed before use. Both ends can then be cut at the aforementioned cutting line T for use. The cutting line T itself does not have to be present on the hose 1, it only serves to exemplify that the tip of the hose 1 is cut off before the fluid 5 is flushed through the hose 1.

(38) FIG. 5b shows a schematic representation of the hose 1 with different inner-diameter regions a, b, and c. Here, the inner-diameter regions are smaller in the order a, b, and c away from the tip of the hose 1. This can provide a stepped inner diameter of the hose 1. For this purpose, the outer diameter of hose 1 may also be step-shaped or complementary to the inner diameter of hose 1. When cut off via the cutting means S at a point according to the corresponding inner-diameter region a, b or c, a rinsing jet diameter can be set. Thus, an optimal pressure of the rinsing fluid 5 can be provided during use.

(39) FIG. 5c shows a further schematic representation of the hose 1, in this case with conical inner-diameter region a. The inner-diameter region b connected to it may be straight. This also allows, only in this case steplessly, a pressure of the fluid 5 selected for the application to be set via cutting means S depending on the position of the cut.

(40) The hoses 1 shown in FIGS. 5b and 5c can thus flexibly provide a rinsing jet diameter of the fluid 5 preferred by the user.